WO2023186353A1 - Dextrines hyperbranchees pour leur utilisation topique pour la prevention ou le traitement d'au moins un symptome de l'inflammation cutanee - Google Patents
Dextrines hyperbranchees pour leur utilisation topique pour la prevention ou le traitement d'au moins un symptome de l'inflammation cutanee Download PDFInfo
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- WO2023186353A1 WO2023186353A1 PCT/EP2023/025145 EP2023025145W WO2023186353A1 WO 2023186353 A1 WO2023186353 A1 WO 2023186353A1 EP 2023025145 W EP2023025145 W EP 2023025145W WO 2023186353 A1 WO2023186353 A1 WO 2023186353A1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
- A61K8/73—Polysaccharides
- A61K8/732—Starch; Amylose; Amylopectin; Derivatives thereof
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q11/00—Preparations for care of the teeth, of the oral cavity or of dentures; Dentifrices, e.g. toothpastes; Mouth rinses
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q19/00—Preparations for care of the skin
- A61Q19/005—Preparations for sensitive skin
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q5/00—Preparations for care of the hair
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B30/00—Preparation of starch, degraded or non-chemically modified starch, amylose, or amylopectin
- C08B30/12—Degraded, destructured or non-chemically modified starch, e.g. mechanically, enzymatically or by irradiation; Bleaching of starch
- C08B30/18—Dextrin, e.g. yellow canari, white dextrin, amylodextrin or maltodextrin; Methods of depolymerisation, e.g. by irradiation or mechanically
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
- A61K2800/74—Biological properties of particular ingredients
- A61K2800/75—Anti-irritant
Definitions
- the subject of the present invention is hyperbranched dextrins, preferably hyperbranched and hydrogenated dextrins for their topical use for the prevention or treatment of at least one symptom chosen from redness, heat, swelling and pain, as well as as for the prevention or treatment of symptoms of skin inflammation and mucosal inflammation. It also relates to the use of these hyperbranched dextrins, and preferably hyperbranched and hydrogenated, to prevent or reduce or eliminate the irritant effect induced by ingredients contained in cosmetic or dermatological or other compositions.
- the skin constitutes both a living anatomical barrier and a zone of exchange between the body and its environment, the effectiveness of which conditions the maintenance of a good homeostatic balance. It includes a superficial layer consisting of the epidermis, and deeper layers forming the dermis and hypodermis. Each of these layers has specific properties allowing the whole to react and adapt to the conditions of its environment.
- the mucous membranes which are the subject of the present application are the membranes which line the internal cavities of the body, chosen from the mouth and the genitals. This covering is a stack of cells called epithelium. Within this epithelium are specific cells that make mucus, hence their name. This mucus will serve to lubricate and protect the organ that is lined with it. The mucous membranes therefore play a protective role and are connected to the skin. We can sometimes observe inflammation of the mucosa, a folding of the mucosa, or damage to the mucous membranes.
- Skin inflammation can in particular be induced by irritation of the skin which occurs during contact of the skin with irritating agents, such as chemical substances such as cleansers, or such as mechanical actions such as shaving, THE BR874 - NUTRIOSE / SOOTHING / THERAPEUTIC-WO scrub, peeling, hair removal. Skin irritation can also be due to the action of temperature, climate, ultraviolet radiation or even atmospheric pollution.
- irritating agents such as chemical substances such as cleansers, or such as mechanical actions such as shaving, THE BR874 - NUTRIOSE / SOOTHING / THERAPEUTIC-WO scrub, peeling, hair removal.
- Skin irritation can also be due to the action of temperature, climate, ultraviolet radiation or even atmospheric pollution.
- Irritation of the mucous membranes can also be induced by certain foods or drinks leading, for example, to the formation of mouth ulcers, or by friction, for example that of brushing with a toothbrush.
- the genital mucosa can also be irritated locally, following repeated friction, too aggressive soap, an excess of eggs, very close intercourse on a slightly dry mucous membrane or an unbalanced flora.
- the action of an irritant chemical substance depends on its ability to penetrate the upper layer of the skin, the stratum corneum, which acts as a protective barrier. Concerning the mucous membranes, the penetration of an irritating chemical substance is much easier because the mucous membranes do not have a physical barrier made of keratin cells, but are just made of non-keratinized epithelial cells into which the substance can easily penetrate. Once the skin barrier has passed, or once it has penetrated the mucosa, the irritant substance is then in contact with living cells and interacts with the endogenous substances naturally present therein, thus causing disruptions in the biological functioning of the cells. cells of the skin or mucous membranes, or even tissue damage. The first biological response is an acute inflammatory reaction of the cells of the damaged tissue. This reflects a defense of the cells against the invasive product in order to accelerate its elimination according to the innate immune response.
- Irritant substances cause reversible skin damage. By applying them directly to the surface of the epidermis, their irritant potential can be evaluated through various parameters such as the expression levels of the main biomarkers playing a role in skin inflammation.
- the inflammatory phenomenon is composed of four symptoms: pain, heat, redness and swelling of the tissue. Its intensity is proportional to the degree of irritation (dose-dependent response) as well as to the quantity of cytokines produced by the keratinocytes of the epidermis with the aim of inducing and controlling the early inflammatory response.
- the cytokines having a major role in the inflammatory cellular response are interleukins IL-1 ⁇ , IL-6 and IL-8 and tumor necrosis factor a (TNF- ⁇ ).
- IL-1 ⁇ , IL-8, RANTES and VEGF are also biomarkers of inflammation.
- compounds known as irritants for the skin such as oxidizing products for example used for hair coloring, abrasive products such as synthetic micro-plastics, mineral powders or pigments in cosmetic creams, surfactants and solvents used in washing or cleaning compositions, acids such as for example salicylic acid used in peels, compositions for exfoliating the skin or promoting cell renewal, or even retinoids used in Anti-aging compositions, are generally used in low doses.
- acids such as for example salicylic acid used in peels, compositions for exfoliating the skin or promoting cell renewal, or even retinoids used in Anti-aging compositions
- the dosage of the inflammation markers IL-1 ⁇ and IL-8 (following inflammation by sodium lauryl sulfate (SLS) in aqueous solution at 0.5% by weight for 6 hours made it possible to show a action profile of hydrogenated hyperbranched dextrins similar to the action of Betamethasone at 0.05%, positive reference control for the anti-inflammatory effect.
- SLS sodium lauryl sulfate
- IL-1 ⁇ the dosage of IL-1 ⁇ confirmed the results previously obtained. Indeed, the overexpression of IL-1 ⁇ during treatment with SLS was compensated by the treatment with hydrogenated hyperbranched dextrins and made it possible to fall below the threshold value for interleukin overexpression. A decrease in the expression of RANTES and VEGF was also observed by treatment with hydrogenated hyperbranched dextrins after SLS inflammation. Furthermore, it has also been demonstrated that IL-1 ⁇ is underexpressed in the presence of treatment with hydrogenated hyperbranched dextrins.
- hyperbranched dextrins according to the invention make it possible to maintain the integrity of the membranes of the cells of the reconstructed human epidermis, and this as effectively as betamethasone.
- an aftershave lotion comprising hyperbranched and hydrogenated dextrin according to the invention made it possible to reduce intracellular water loss compared to the placebo lotion.
- the dextrins according to the invention reduce the redness caused by SLS significantly from 10 minutes compared to the placebo group and the reference group, this reduction then being maintained for up to 7 days. It has also been demonstrated that the dextrins according to the invention make it possible to significantly reduce transepidermal water loss from 30 minutes after application, then gradually increased over the duration of treatment ranging from 2 to 7 days, to reach a greater reduction value in water loss compared to the placebo group of approximately 6.6 units (i.e. a difference of approximately 195%). The dextrins according to the invention therefore make it possible to maintain the hydration of the skin by maintaining the barrier function of the skin.
- the present invention relates to hyperbranched dextrins, preferably hyperbranched and hydrogenated dextrins for their topical use for the prevention or treatment of at least one symptom chosen from redness, heat, swelling and pain.
- the present invention also relates to the use of hyperbranched dextrins, preferably hyperbranched and hydrogenated dextrins, to prevent or reduce or eliminate the irritant effect of ingredients contained in topical compositions for cosmetic, dermocosmetic, dermatological, pharmaceutical use, medicinal, veterinary, domestic (for example detergents).
- hyperbranched dextrins preferably hyperbranched and hydrogenated dextrins
- the dextrins useful for the therapeutic use which is the subject of the present application are hyperbranched dextrins.
- glucose polymers obtained from granular starch by pyroconversion, usually by the action of an acid in a generally dry medium, that is to say on granules present under the form of dry solid particles, containing residual moisture imposed by the conditions of physical equilibrium at a given temperature and pressure.
- maltodextrins and pyrogenic dextrins fall into the general family of dextrins useful for the invention when they have been modified to be hyperbranched.
- glucose polymers resulting from the liquefaction or hydrolysis of starch by acid or enzymatic route and generally called “maltodextrin”, “hydrolyzate of 'starch' or 'glucose syrup', as soon as these polymers have been additionally modified by chemical or enzymatic means, in particular by branching enzymes, to present glucosidic bonds between the anhydroglucose molecules, significantly different in terms of nature , those of the starch from which they come.
- maltodextrins, starch hydrolysates, glucose syrups and pyrogenic dextrins fall into the general family of dextrins useful for the invention as long as they differ in terms of carbohydrate bonds from the starch from which they come. , by including “atypical” connections.
- hyperbranched dextrin By “hyperbranched dextrin”, the applicant means a “dextrin” presenting glucosidic bonds between the anhydroglucose molecules, significantly different in terms of nature and quantity from those naturally constituting the starch from which it is derived. It includes glucosidic bonds between anhydroglucose molecules naturally present, bonds 1-6, but in greater quantity, and glucosidic bonds not naturally present in starch, called “atypical", bonds 1-3 and 1- 2.
- a hyperbranched dextrin is a dextrin comprising a large proportion of branching glucosidic bonds compared to all of the glucosidic bonds present in said dextrin.
- the term “hyperconnected” can also be replaced by the term “highly connected”.
- branching glucosidic bonds are bonds generating non-linear chains, in proportions greater than the normal values of a native starch.
- the glucosidic bonds generating nonlinear chains are the 1-6, 1-3, and 1-2 glucosidic bonds, as illustrated in Figure 1 [FIG 1].
- Bonds 1-3 and 1-2 are the atypical glucosidic bonds. The normal values for these bonds in a native starch are about 5% for bonds 1-6, and about 0% for bonds 1-2 and 1-3. The complement is composed of glucosidic bonds 1-4, or approximately 95%.
- Link 1-4 is a link that creates a linear link.
- characteristic values of the hyperbranched dextrins useful for the invention are values greater than 5% relative to the sum of the bonds 1-2, 1-3, 1-4 and 1- 6, preferably greater than or equal to 10%, relative to the sum of bonds 1-2, 1-3, 1-4 and 1-6 and more preferably greater than or equal to 12% relative to the sum of bonds 1- 2, 1-3, 1-4 and 1-6, and most preferably greater than or equal to 15% relative to the sum of connections 1-2, 1-3, 1-4 and 1-6.
- the hyperbranched dextrins comprise at least 5%, preferably at least 10%, preferably at least 12%, preferably at least 15% of glucosidic bonds 1-6 relative to the sum of the bonds 1-2, 1-3, 1-4 and 1-6.
- the values useful for the invention are values greater than 1% relative to the sum of the bonds 1-2, 1-3, 1-4 and 1- 6, preferably greater than or equal to 5% relative to the sum of bonds 1-2, 1-3, 1-4 and 1-6, and more preferably greater than or equal to 10% relative to the sum of bonds 1- 2, 1-3, 1-4 and 1-6.
- the hyperbranched dextrins comprise at least 1%, preferably at least 5%, preferably at least 10%, and preferably at least 20% of glucosidic bonds 1-2 relative to the sum of the connections 1-2, 1-3, 1-4 and 1-6.
- the hyperbranched dextrins comprise at least 1%, preferably at least 5%, preferably at least 10% and preferably at least 20% of glucosidic bonds 1-3 relative to the sum of the bonds 1- 2, 1-3, 1-4 and 1-6.
- the values useful for the invention are values less than 90%, preferably less than 70%, preferably less than 60%, preferably less than 50%, relative to the sum of the bonds 1-2, 1-3, 1-4 and 1-6 and preferably between 42 to 50%, relative to the sum of bonds 1-2, 1-3, 1-4 and 1-6.
- the branched dextrins comprise at most 90%, preferably at most 70%, preferably at most 50% of glucosidic bonds 1-4 relative to the sum of the bonds 1-2, 1- 3, 1-4 and 1-6.
- the hyperbranched dextrins preferably hyperbranched and hydrogenated, useful for the invention have a content of glucosidic bonds 1-6 of between 5% and 40%, preferably between 10% and 30%, more preferably between 12%. and 22%, and most preferably between 15 and 20% relative to the sum of connections 1-2, 1-3, 1-4 and 1-6.
- the hyperbranched dextrins preferably hyperbranched and hydrogenated, useful for the invention, comprise:
- the hyperbranched dextrins preferably hyperbranched and hydrogenated, useful for the invention, comprise:
- the hyperbranched dextrins preferably hyperbranched and hydrogenated, useful for the invention have:
- the hyperbranched dextrins preferably hyperbranched and hydrogenated, useful for the invention have:
- the hyperbranched dextrins preferably hyperbranched and hydrogenated, useful for the invention have:
- branching bond contents of a starch can also be obtained by the action of a so-called “branching” or “rebranching” enzyme on a liquefied starch, such as a maltodextrin, a starch hydrolyzate or a glucose syrup, possibly previously or subsequently hydrogenated.
- branching bond contents can therefore be obtained by the action of a so-called “branching” or “rebranching” enzyme on a starch liquefied and/or by the action of an acid typically at high temperature in a dry environment, on a granular or liquefied starch.
- glucosidic bonds 1-2, 1-3, 1-4 and 1-6 can be carried out by using the classic methylation technique described in HAKOMORI, S., 1964, J. Biochem ., 55, 205. “A rapid Permethylation of Glycolipid, and Polysaccharide Catalyzed by Methylsulfinyl Carbanion in Dimethyl Sulfoxide”. This method makes it possible to chemically characterize glucosidic bonds by differentiating between free OH groups and bound groups. It is a destructive method including the steps of methylation, hydrolysis, reduction with NaBD4, acetylation and mass spectrometry analysis.
- said hyperbranched dextrins have a number average molecular mass Mn less than or equal to 10,000 g/mole, preferably less than or equal to 4500 g/mole, more preferably between 1000 and 3500 g/mole, more still preferably between 1500 and 3500 g/mole, and most preferably between 1800 and 3200 g/mole.
- said hyperbranched dextrins have a polymolecularity index, ratio of the weight average molar mass to the number average molar mass, denoted IP, less than or equal to 15, preferably less than or equal to 10, more preferably less than or equal to 5, and most preferably less than or equal to 3.
- Mn, Mw and IP are measured by size exclusion chromatography, based on the selective retention of solute molecules as a function of their size, due to their penetration or not into the pores of the stationary phase.
- the size exclusion chromatography columns used are the PSS SUPREMA 100 and the PSS SUPREMA 1000 mounted in series and coupled to a light scattering detector.
- said hyperbranched dextrins have a reducing sugar content less than or equal to 20%, preferably less than or equal to 15%, more preferably less than or equal to 10%, even more preferably less than or equal to 6 %, and most preferably less than or equal to 3% relative to the total mass of the hyperbranched dextrin.
- the reducing sugar content, expressed as glucose, by weight relative to the dry weight of the product analyzed, is determined by the BERTRAND method.
- the hyperbranched dextrins useful for the invention have a relatively high content of residual 1-4 glucosidic bonds.
- This content of glucosidic bonds 1-4 is between 42 and 50% relative to the sum bonds 1-2, 1-3, 1-4 and 1-6, in combination with a content of glucosidic bonds 1-6 of between 12 and 22% relative to the sum of bonds 1-2, 1-3, 1-4 and 1-6.
- the hyperbranched dextrins useful for the invention have a ratio of 1-4/1-6 glucosidic bonds of between 1.9 and 4.2 and in particular of between 2.3 and 3.5.
- the hyperbranched dextrins useful for the invention have a content of glucosidic bonds 1-3 of between 1 and 10% relative to the sum of bonds 1-2, 1-3, 1-4 and 1-6, in combination with a content of glucosidic bonds 1-4 of between 42 and 50% relative to the sum of bonds 1-2, 1-3, 1-4 and 1-6.
- the hyperbranched dextrins useful for the invention have a ratio of 1-4/1-3 glucosidic bonds of between 0.02 to 0.24 and in particular between 0.1 and 0.2.
- the hyperbranched dextrins useful for the invention have a content of glucosidic bonds 1-2 of between 1 and 10%, in combination with a content of glucosidic bonds 1-4 of between 42 and 50%.
- the hyperbranched dextrins useful for the invention have a ratio of 1-4/1-2 glucosidic bonds of between 0.02 and 0.24 and in particular of between 0.1 and 0.2.
- the hyperbranched dextrins useful for the invention have:
- the hyperbranched dextrins useful for the invention have:
- the hyperbranched dextrins useful for the invention have:
- Hyperbranched dextrins useful for the invention are commercially available, such as the products “Nutriose® FM 06”, “Nutriose® FM 10” and “Nutriose® FM15S from Roquette®, or the range of products “Promitor ® Soluble fiber” from Tate & Lyle.
- the dextrins useful for the non-therapeutic use which is the subject of the present application are hyperbranched and hydrogenated dextrins.
- Such dextrins can be obtained by subjecting the hyperbranched dextrins according to the subject of the present application to hydrogenation, or by applying a “branching” or “rebranching” process to a previously hydrogenated dextrin.
- Hydrogenation can for example be carried out by subjecting an aqueous solution of hyperbranched dextrin to hydrogen gas in the presence of a catalyst such as Raney nickel.
- an additional characteristic can thus advantageously be added, namely, a reducing sugar content less than or equal to 5% by weight, preferably less than or equal to 3% by weight, more preferably lower or equal to 2% by weight, more preferably less than or equal to 1% by weight, more preferably less than or equal to 0.5% by weight, and most preferably less than or equal to 0.15% by weight.
- the hyperbranched and hydrogenated dextrins useful for the invention have:
- the hyperbranched and hydrogenated dextrins useful for the invention have:
- the hyperbranched and hydrogenated dextrins useful for the invention have:
- Hyperbranched and hydrogenated dextrins useful for the invention are commercially available, such as “Nutriose® HM 06” from the company Roquette.
- Biomarkers involved in inflammation IL-1 ⁇ , IL-1 ⁇ , RANTES and VEGF
- Inflammation is essentially an innate immune response of self-defense against harmful stimuli, in particular infectious agents and physical or chemical challenges. This is a temporary orchestrated and adapted modification of cellular functions in order to return, if possible, to the previous state before the attack.
- the temporal expression profile of cytokines in epidermal keratinocytes is important in the orchestration of inflammatory responses (Kataru et al., 2009).
- IL-1, 6, 8, and TNF-a are known to be potent inducers of keratinocyte-derived VEGF (Detmar et al., 1995).
- IL-1 is an essential pro-inflammatory cytokine which plays the role of mediator of the acute phase of inflammation by inducing local and systemic responses.
- IL-1 ⁇ functions as an “alarm”. During cell death by necrosis, IL-1 ⁇ is released into the extracellular space where it stimulates the production of chemokines, which leads to the infiltration of neutrophils, then monocytes.
- IL-1 ⁇ is constitutively present in different types of epithelial cells of healthy subjects, whereas IL-1 ⁇ is mainly induced under pathological conditions.
- the mediators RANTES and VEGF are growth factors for connective tissue and vessels.
- VEGF vascular endothelial growth factor
- vascular permeability is involved in physiological processes such as wound repair and hair growth, as well as in pathological conditions including skin inflammation, cancer of the skin and psoriasis.
- pathological conditions including skin inflammation, cancer of the skin and psoriasis.
- psoriasis contact dermatitis, wound healing and cutaneous neoplasias, which are closely associated with angiogenesis or chronic inflammation
- significant induction of VEGF is observed in epidermal keratinocytes. , suggesting that increased VEGF plays a key role in these skin problems.
- the chemokine RANTES is a chemoattractant for eosinophils, memory phenotype T lymphocytes and monocytes. This chemokine plays an important role in chronic inflammatory and allergic diseases. [0070]
- IL-1 ⁇ , IL-1 ⁇ , RANTES AND VEGF treatment with hyperbranched dextrins induces a reduction in these signals.
- hyperbranched dextrins preferably hyperbranched and hydrogenated, are effective for the prevention or treatment of at least one symptom chosen from redness, heat, swelling, pain, as well as for prevention or treatment of skin inflammation and mucosal inflammation.
- the present invention relates to hyperbranched dextrins, preferably hyperbranched and hydrogenated, for their use for the prevention or treatment of at least one symptom, chosen from redness, heat, swelling and pain.
- the prevention of at least one symptom chosen from redness, heat, swelling and pain means the prevention of the appearance of at least one of these symptoms, but also the delay of the appearance of at least one of these symptoms, as well as the prevention of the worsening of at least one of these symptoms.
- the treatment of at least one symptom chosen from redness, heat, swelling and pain means the disappearance of at least one of the symptoms, or at least the reduction in intensity. at least one of the symptoms, for example reduction in the intensity of redness and/or heat and/or swelling and/or pain.
- the at least one symptom is located at the level of at least one epithelial tissue chosen from keratinized pluristratified squamous epithelium, non-keratinized pluristratified squamous epithelium, stratified columnar epithelium, ciliated or non-ciliated pseudostratified columnar epithelium
- the epidermis is a keratinized multistratified squamous epithelium.
- the oral cavity, the vaginal mucosa, the urogenital mucous membranes are non-keratinized multistratified squamous epithelia.
- the nostrils and conjunctival cul-de-sacs are stratified columnar epithelia.
- the nasal mucosa is a ciliated or non-ciliated pseudostratified columnar epithelium.
- the at least one symptom is located at the level of the epidermis or the oral cavity or the vaginal mucosa or the nostrils or the conjunctival dead ends or the nasal mucosa .
- the at least one symptom is located on the epidermis, preferably the epidermis of the skin or the scalp.
- the epidermis of the skin or the scalp is a sensitive epidermis.
- the epidermis is preferably that of the skin or the scalp.
- the epidermis is a sensitive epidermis.
- Skin inflammation is also known as dermatitis or dermatitis.
- the present invention relates to hyperbranched dextrins, preferably hyperbranched and hydrogenated dextrins for their topical use for the prevention or treatment of symptoms of skin inflammation.
- topical use means in particular use on a surface of the body, such as the skin or mucous membranes.
- Prevention of symptoms of skin inflammation means preventing the appearance of the four symptoms of skin inflammation, but also delaying the appearance of the four symptoms of skin inflammation, as well as preventing the four symptoms of skin inflammation from getting worse.
- Treatment of the symptoms of skin inflammation means the disappearance of the four symptoms of skin inflammation, or at least the reduction in the intensity of the four symptoms of skin inflammation, for example the reduction from the intensity of the redness and heat and swelling and pain.
- the cause(s) of the appearance of one of the symptoms or all of the symptoms, chosen from redness, heat, swelling and pain are numerous.
- the at least one symptom is induced by at least one of the conditions chosen from infectious agents, chemicals, ingredients contained in topical compositions for cosmetic, dermocosmetic, dermatological, pharmaceutical, medicinal use, veterinary, domestic (for example detergents), mechanical attacks, environmental factors, thermal attacks, food and drinks.
- Another non-pathological cause could be a therapeutic treatment administered orally or intravenously generating one or more cutaneous side reactions.
- the friction can be that of clothing on the skin or of skin on the skin.
- clothing made of wool or clothing worn tightly in contact with the skin such as socks or scarves, rubs against the skin, and can thus cause skin irritation.
- Friction can also be due to prolonged wearing of helmets, masks, in particular surgical masks, protection against the climate, protection against micro-organisms such as bacteria or viruses, protection against chemicals or solvents or again against dust.
- Abrasion means bringing the skin or mucous membranes into contact with abrasive agents, that is to say solid particles, generally irregular and not smooth.
- abrasive agents can be gravel, sand, magnesia.
- abrasive agents can be calcium carbonate.
- brushing we mean the action of a brush, in particular the action of a toothbrush on the gums.
- irritant or polluting agents such as detergents, pollution, cigarette smoke, household products, and in particular household cleaning products.
- compositions for cosmetic, dermocosmetic, dermatological, pharmaceutical, medicinal, veterinary, or domestic use mention will be made of cosmetic active ingredients, dermatological active ingredients, surfactants, solvents, preservatives, perfumes. , acids, exfoliants, detergents.
- abrasive/exfoliating particles from mineral, organic, natural or synthetic sources.
- desquamating agents the following are likely to cause skin irritation: saturated (acetic acid) and unsaturated monocarboxylic acids, saturated and unsaturated dicarboxylic acids, saturated and unsaturated tricarboxylic acids; a-hydroxy acids and p-hydroxy acids of monocarboxylic acids; the a - hydroxy acids and p-hydroxy acids of dicarboxylic acids; a-hydroxyacids and p-hydroxyacids, tricarboxylic acids, ketoacids, a-ketoacids, p-ketoacids of polycarboxylic acids, polyhydroxymonocarboxylic acids, polyhydroxy bicarboxylic acids and polyhydroxy tricarboxylic acids.
- glycolic dioic acids such as octadecene dioic acid, citric, lactic, tartaric, malic or mandelic acids, their esters such as dialkyl tartrate (C12/C13), citrate branched C12-13 tri-alcohols.
- chelating agents for mineral salts such as EDTA; N-acyl-N,N',Nethylenediaminetriacetic acid; aminosulfonic compounds and in particular (N-2 hydroxyethylpiperazine-N-2-ethane) sulfonic acid (HEPES); 2-oxothiazolidine-4-carboxylic acid (procysteine) derivatives; glycine-type alpha amino acid derivatives; honey ; sugar derivatives such as O-octanoyl-6-D-maltose, O-linoleyl-6-D-glucose and N-acetyl glucosamine.
- mineral salts such as EDTA; N-acyl-N,N',Nethylenediaminetriacetic acid; aminosulfonic compounds and in particular (N-2 hydroxyethylpiperazine-N-2-ethane) sulfonic acid (HEPES); 2-oxothiazolidine-4-carboxylic acid (pro
- Retinoids are also compounds capable of causing skin irritation. For example, we can cite among them retinol and its esters, retinal, retinoic acid and its derivatives and adapalene.
- Salts and derivatives such as cis or trans forms, racemic mixtures, dextrorotatory or levorotatory forms of the compounds mentioned above are also considered to be compounds likely to cause skin irritation.
- vitamin D certain vitamins such as vitamin D and its derivatives such as vitamin 10 D3, vitamin D2, calcitriol, calcipotriol, tacalcitol, 24,25-diOH vitamin D3, 1-OH vitamin D2 and 1, 24-diOH vitamin D2; vitamin B9 and its derivatives,
- - hair dyes and dyes such as aminophenols and their derivatives such as para-phenylene diamine (p-PDA), N-phenyl p-PDA, toluene 2,5-diamine sulfate, meta-phenylene diamine (m -PDA), 3,4-diamine toluene and ortho-phenylene diamine (o-PDA),
- p-PDA para-phenylene diamine
- N-phenyl p-PDA N-phenyl p-PDA
- toluene 2,5-diamine sulfate meta-phenylene diamine
- m -PDA meta-phenylene diamine
- o-PDA ortho-phenylene diamine
- antiperspirant agents such as aluminum salts, such as aluminum hydroxychloride,
- - depilatory and/or perm active ingredients such as thioglycolates, ammonia,
- - depigmentants e.g. hydroquinone, high concentration vitamin C, kojic acid
- propigmentants such as psoralens and methylangecilins
- preservatives mention may be made of propionic acid, calcium propionate, formaldehyde, paraformaldehyde, o-phenylphenol or its salts, zinc pyrithione, sodium and ammonium sulphites, bisulphites or metabisulphites.
- anionic, cationic and amphoteric surfactants more particularly anionic surfactants such as alkyl sulfates and alkyl ether sulfates such as lauryl sulfate and lauryl ether sulfate, and their salts, particularly sodium salts.
- the compound likely to cause skin irritation is chosen from surfactants, bases and acids.
- the acids can be chosen from citric acid, lactic acid, acetic acid, dehydroacetic acid, formic acid, gluconic acid, succinic acid, salicylic acid, glucuronic acid. , retinoic acid, glycolic acid, phytic acid, ascorbic acid, and levulinic acid.
- the bases can be chosen from sodium hydroxide, potassium hydroxide, triethanolamine, amino methyl propanol.
- the at least one symptom chosen from redness, heat, swelling and pain is induced by chemicals, ingredients contained in cosmetic, dermatological formulations, mechanical attacks, thermal attacks, environmental factors.
- the at least one symptom chosen from redness, heat, swelling and pain or skin inflammation is induced by exposure to chemicals or ingredients contained in topical compositions for cosmetic use. or dermatological chosen from surfactants, detergents, oxidizing or bleaching agents of hair, or is induced by mechanical attacks chosen from friction, shaving, cuts, microcuts, hair removal, abrasion and scrub.
- the non-pathological cause(s) of skin inflammation is/are also numerous. Indeed, skin inflammation can be induced by at least one of the causes previously described and chosen from infectious agents, chemicals, ingredients contained in topical compositions for cosmetic, dermocosmetic, dermatological, pharmaceutical, medicinal use, veterinary, or domestic, mechanical attacks, environmental factors, thermal attacks, food and drinks, but also by skin irritation, skin corrosion, skin inflammation of endogenous origin, or a combination of these causes.
- Skin irritation includes acute skin irritation (or acute irritant contact dermatitis), cumulative skin irritation (or cumulative irritant contact dermatitis) and phototoxicity (or phototoxic dermatitis).
- acute skin irritation or acute irritant contact dermatitis means a reversible local inflammatory response of the skin of a normal living being to a direct injury caused by the single application of a toxic substance, without the intervention of an immunological mechanism.
- the term “cumulative skin irritation” or “cumulative irritant contact dermatitis” means reversible irritation resulting from repeated or continuous exposure to materials which do not in themselves cause acute irritation.
- Phototoxicity or “phototoxic dermatitis” means irritation resulting from light-induced molecular changes in the structure of chemicals applied to the skin.
- the skin irritation is chosen from cumulative irritant contact dermatitis, acute irritant contact dermatitis and phototoxic dermatitis.
- the skin irritation is cumulative irritant contact dermatitis.
- Skin corrosion means the direct chemical action on normal living skin which results in its disintegration and irreversible alteration at the point of contact. Corrosion manifests itself as ulceration and necrosis with subsequent scar formation.
- phototoxicity is induced by chemicals, ingredients contained in topical compositions for cosmetic or dermatological use.
- skin inflammation is induced by exposure to chemicals and ingredients contained in topical compositions for cosmetic or dermatological use, mechanical attacks, thermal attacks.
- skin inflammation is induced by exposure to chemicals and ingredients contained in topical compositions for cosmetic or dermatological use and preferably by ingredients contained in topical compositions for cosmetic or dermatological use.
- skin inflammation of endogenous origin means inflammation induced by one or more internal biological factors of the human body, or by one or more pathogenic agents endogenous to the human body. i.e. pathogenic agents synthesized by the human organism itself. [0135] causes of inflammation of the mucous membranes
- the invention relates to hyperbranched dextrins, preferably hydrogenated hyperbranched dextrins for their use for the prevention or treatment of symptoms of mucosal inflammation.
- the inflammation is chosen from inflammation of the oral mucosa, preferably inflammation of the oral mucosa by anionic surfactants, or inflammation of the oral mucosa due to irritation caused by brushing the oral mucosa. teeth.
- Said anionic surfactants can be applied to the oral mucous membranes using a toothpaste, generally with concomitant brushing, or a mouthwash, generally without concomitant brushing.
- inflammation of the mucous membranes is induced by ingredients contained in topical compositions for cosmetic, dermocosmetic, dermatological, pharmaceutical, medicinal, veterinary, or domestic use such as surfactants or by mechanical attack such as brushing.
- the skin inflammation is induced by a dermatological pathology involving an inflammatory process.
- the dermatological pathology involving an inflammatory process is chosen from psoriasis, skin atopy, atopic dermatitis, allergic reactions of the immediate hypersensitivity type, allergic reactions of the delayed hypersensitivity type, hyperpigmentations inflammatory diseases, immune dermatoses, actinic elastosis, alopecia areata or alopecia areata, vitiligo, systemic lupus erythematosus, pemphigus vulgaris, dystrophic epidermolysis bulbosa and canities of autoimmune origin, erythema,
- atopic dermatitis is atopic dermatitis of sensitive skin.
- the dermatological pathologies are chosen from erythema, psoriasis, skin atopy, atopic dermatitis, allergic reactions of the immediate hypersensitivity type, allergic reactions of the delayed hypersensitivity type, and inflammatory hyperpigmentations.
- the erythema is due to ultraviolet rays.
- the allergic reaction of the immediate hypersensitivity type is hives.
- allergic reactions of the delayed hypersensitivity type are chosen from contact dermatitis and eczema.
- inflammation of the mucous membranes is induced by a dermatological pathology involving an inflammatory process.
- the dermatological pathologies are chosen from the pathologies of the oral mucosa, the vaginal mucosa, the urogenital mucosa, preferably from the pathologies of the oral mucosa.
- the pathologies of the oral mucous membranes are chosen from gingivitis, oral lichen planus, mouth ulcers, etc.
- prevention or “treatment” or “prevention method” or “treatment method” are not absolute terms and designate a procedure or a plan of action designed, even with a low probability of success. but must induce an overall beneficial effect such as the disappearance of the pathology, but also the delay in the appearance of the symptoms of the pathology, or the reduction in the severity of one or more symptoms.
- prevention means the prevention of symptoms of the pathology but also the prevention of the worsening of the symptoms of the pathology.
- the present invention also relates to a method for the prevention or treatment of symptoms of skin inflammation induced by a dermatological pathology involving an inflammatory process comprising the administration of hyperbranched dextrins, preferably hyperbranched and hydrogenated dextrins, to a patient in need.
- the present invention also relates to the use of hyperbranched dextrins, preferably hyperbranched and hydrogenated dextrins, for obtaining a medication intended for the prevention or treatment of symptoms of inflammation skin induced by a dermatological pathology involving an inflammatory process.
- the present invention also relates to a composition comprising hyperbranched dextrins, preferably hyperbranched and hydrogenated dextrins, for their therapeutic use for the prevention or treatment of symptoms of skin inflammation induced by a dermatological pathology involving an inflammatory process. .
- the invention relates to the use of hyperbranched dextrins, preferably hyperbranched and hydrogenated, to prevent, reduce or eliminate the irritant effect of chemicals coming into contact with the skin and mucous membranes, or ingredients applied topically, contained in topical compositions for cosmetic, dermocosmetic, dermatological, pharmaceutical, medicinal, veterinary, or domestic use.
- hyperbranched dextrins preferably hyperbranched and hydrogenated
- An irritant effect means the appearance of at least one symptom in the epithelial tissue or mucous membranes, chosen from redness, heat, swelling and pain following exposure of the skin or of the mucosa to one or more chemical products, or following the topical application of cosmetic, dermocosmetic, dermatological, pharmaceutical, medicinal, veterinary, or domestic compositions, comprising ingredients irritating to epithelial tissues or mucous membranes.
- Hyperbranched dextrins may be applied before or after the use of these ingredients or active ingredients having an irritant effect in order to prevent, greatly attenuate, or even eliminate this irritant effect.
- the hyperbranched dextrin preferably hyperbranched and hydrogenated, will be in a topical formulation for cosmetic, dermocosmetic or dermatological, pharmaceutical, medicinal or veterinary use, which, in fact, will not contain any ingredient or active ingredient having an irritating effect.
- hyperbranched dextrins preferably hyperbranched and hydrogenated
- a topical composition for cosmetic, dermocosmetic, dermatological, pharmaceutical, medicinal, veterinary, or domestic use preferably in a topical composition for cosmetic, dermocosmetic, or dermatological use, comprising one or more ingredient(s) or active(s) having an irritating effect
- a topical composition for cosmetic, dermocosmetic, or dermatological use comprising one or more ingredient(s) or active(s) having an irritating effect
- This allows in addition to increasing the quantity of product with irritant side effect compared to the quantity of product normally used, with a view to improved effectiveness. This also makes it possible to administer products with an irritating effect to sensitive skin.
- Topical compositions for cosmetic, dermocosmetic, dermatological, pharmaceutical, medicinal, veterinary, or domestic use may in fact contain one or more ingredients or active ingredients capable of causing irritation of the skin, such as cosmetic or dermatological active ingredients, surfactants, solvents, preservatives, perfumes, detergents.
- Hyperbranched dextrins may be incorporated into a dermatological composition, or more generally into any composition made from a dermatologically acceptable medium and being brought into contact with an epithelial tissue chosen from squamous epithelium.
- keratinized pluristratified epithelium preferably, preferably being brought into contact with the epidermis, the oral cavity, the oral mucous membranes, the vaginal mucosa, nostrils, nasal mucosa, and all preferably being brought into contact with the skin or oral mucous membranes.
- the present invention also relates to a dermatological or dermatologically acceptable composition, comprising hydrogenated and hyperbranched dextrins and a dermatologically acceptable medium.
- Dermatologically acceptable composition or “dermatologically acceptable” means any composition which does not or very rarely presents deleterious side effects and in particular which does not produce redness, heating, tightness or tingling unacceptable, or more generally inflammation, for a user who brings said dermatologically acceptable composition into contact with epithelial tissue, preferably with his skin or mucous membranes.
- the dermatologically acceptable composition is thus compatible with human epithelial tissues and the mucous membranes of human beings.
- Dermatologically acceptable compositions include pharmaceutical, medicinal, and household compositions including detergent compositions.
- composition according to the invention can also be another topical composition intended to treat or treat, preventively or curatively, at least one epithelial tissue chosen from keratinized multistratified squamous epithelium (epidermis), the non-keratinized multistratified squamous epithelium (oral cavity, vaginal mucosa), the stratified columnar epithelium (nostrils, conjunctival cul-de-sac), the ciliated or non-ciliated pseudostratified columnar epithelium (nasal mucosa). Consequently, this composition can be a topical composition for dermatological, pharmaceutical, medicinal or veterinary use, for skin and epithelial tissue care.
- epithelial tissue chosen from keratinized multistratified squamous epithelium (epidermis), the non-keratinized multistratified squamous epithelium (oral cavity, vaginal mucosa), the stratified columnar
- the dermatological composition according to the invention can be presented in all the galenic forms normally used for topical application such as aqueous, hydroalcoholic or oily solutions, solutions or dispersions of the lotion or serum type, emulsions of liquid consistency or semi-liquid of the milk type, obtained by dispersing a fatty phase in an aqueous phase (O/W) or vice versa (W/O), or suspensions or emulsions, of soft, semi-solid or solid consistency, of the type cream, aqueous or anhydrous gel, anhydrous compositions, solid compositions of microemulsions, microcapsules, microparticles, or vesicular dispersions of ionic and/or non-ionic type.
- aqueous, hydroalcoholic or oily solutions solutions or dispersions of the lotion or serum type
- emulsions of liquid consistency or semi-liquid of the milk type obtained by dispersing a fatty phase in an aqueous phase (O/W) or vice versa (W/O)
- compositions are prepared by the usual methods known to those skilled in the art.
- composition can be applied before, during or after the appearance of at least one symptom chosen from redness, heat, swelling and pain, or to inflammation of the skin or mucous membranes, and this application can be repeated or renewed as necessary.
- This composition when applied to the skin, can be more or less fluid and have the appearance of a cream, an emulsion or microemulsion, an ointment, a milk, a lotion, a serum, a paste, a foam, a mask, a fluid, a balm, an oil, a gel, an ointment. It can optionally be applied to the skin in the form of an aerosol. It can also be in solid form, for example in the form of a stick or patch, dry soaps, or cleansing bars.
- a care product such as a day or night care cream for the skin of the face and/or body.
- a cleaning product such as a makeup product, as a deodorant product, as a shaving product, as an aftershave product, as an after-sun product, as a sun protection product, or as a lip balm protecting the lips from the cold and/or sun and/or wind.
- composition according to the invention can also be a composition for scalp and hair care and perhaps in galenic forms for application rinsed, called “rinse-off” in English, or for non-rinsed application.
- these forms are shampoos, hair conditioners, hair masks, serums, mousses, balms, creams, sprays, conditioners, detanglers, hair creams and also in lotion form treatment, composition of dyes, coloring shampoos, composition of perm, anti-hair loss lotion or gel, antiparasitic shampoo, or conditioner.
- the amount of hyperbranched dextrins in the compositions may vary so as to administer an effective amount of hyperbranched dextrins to achieve the desired therapeutic response for a particular patient.
- an effective amount or “therapeutically effective amount” of a compound is meant a non-toxic but sufficient quantity of the compound to provide the desired effect.
- the quantity administered or dose depends on the activity of the hyperbranched dextrins, the route of administration, the severity of the pathology, as well as the state of health and medical history of the patient treated, various factors such as body weight, diet, possible combination with other therapeutic agents. However, it is within the competence of those skilled in the art to determine the appropriate dosage and to initiate treatment at a dosage lower than that required to obtain the desired therapeutic effect and to gradually increase the dose until the the desired effect is obtained.
- the content of hyperbranched dextrins ranges from 0.5 to 50% by weight, preferably from 1 to 25% by weight, more preferably from 1 to 15% by weight, even more preferably from 2 to 10% by weight, relative to the total weight of the cosmetic, dermatological or dermatologically acceptable composition.
- the hyperbranched dextrins are administered topically.
- Hyperbranched dextrins can be administered in several doses.
- the dermatological composition or the topical formulation according to the invention may also comprise a solvent chosen according to the different ingredients and the form of administration.
- the composition according to the invention may comprise an aqueous phase comprising water and optionally, one or more organic solvents miscible with water.
- water-soluble solvent is meant a compound that is liquid at room temperature and miscible with water (miscibility in water greater than 50% by weight at 25° C. and atmospheric pressure).
- the water-soluble solvents which can be used in the compositions according to the invention may be volatile.
- the cosmetic composition may also include, in addition to hydrogenated and highly branched dextrins:
- the humectant(s) will be chosen from polyols and/or esters of fatty acids and polyethylene glycol.
- polyols any molecule having in its structure at least two free hydroxy (-OH) groups. These polyols are preferably liquid at room temperature (25°C).
- the polyol will be chosen from maltitol, mannitol, xylitol, erythritol, sorbitol, isosorbide, glycerol or glycerin, glucose, sucrose, polydextrose, hydrogenated glucose syrups , dextrins, maltodextrins, glucose syrups, and mixtures thereof.
- esters of fatty acids and polyethylene glycol we will cite the product sold under the name Glucamate SSE-20 (INCI: PEG-20 METHYL GLUCOSE SESQUI STEARATE) by the company LUBRIZOL ADVANCED MATERIALS, Inc.
- the composition comprises from 0.5 to 25% by weight of one or more humectant(s), preferably from 1 to 15% by weight, and even more preferably from 2 to 10% by weight. of polyols, relative to the total weight of the composition.
- humectant(s) preferably from 1 to 15% by weight, and even more preferably from 2 to 10% by weight. of polyols, relative to the total weight of the composition.
- oil means a compound that is liquid at room temperature (25°C), and which, when introduced in a proportion of at least 1% by weight into water at 25°C, is not at all soluble in water, or soluble at less than 10% by weight, relative to the weight of oil introduced into the water.
- the oil will be chosen from volatile oils, non-volatile oils and their mixtures. Preferably, these oils are vegetable or of plant origin.
- non-volatile oil means an oil remaining on the keratin materials at ambient temperature and atmospheric pressure for at least several hours and in particular having a vapor pressure of less than 10 -3 mm Hg (0.13 Pa). .
- non-volatile oils mention may be made of fatty esters such as cetearyl isononoate, isotridecyl isononoate, isostearyl isostearate, isopropyl isostearate, isopropyl myristate, isopropyl palmitate, butyl stearate, hexyl laurate, isononyl isononate, 2-ethyl-hexyl palmitate, 2-hexyldecyl laurate, 2-octyl decyl palmitate, myristate or 2-octyldodecyl lactate, 2-diethyl hexyl succinate, diisostearyl malate, tracetin, triprin, caprylic/capric acid triglycerides, coconut caprate and caprylate mixture, alcohol benzoates in C12 to C15, glycol esters such as butylene glycol cocoate, glycerin
- non-volatile oils can also be hydrocarbon or silicone type oils such as paraffin oil, squalane oil, petroleum jelly, dimethyl siloxanes and their mixtures.
- the non-volatile oil is chosen from stearic acid, jojoba oil (INCI: simmondsia Chinensis Seed Oil), grape seed oil (INCI: vitis vinifera seed oil), macadamia oil (INCI: Macadamia ternifolia seed oil), refined oleic sunflower oil (Helianthus annuus seed oil), the mixture of coconut caprate and caprylate such as the product Miglyol Coco 810 (INCI: Coco -Caprylate/Caprate), sweet almond oil (INCI: Prunus Amygdalus Dulcis Oil), sesame oil (INCI: Sesamum indicum seed oil).
- jojoba oil INCI: simmondsia Chinensis Seed Oil
- grape seed oil INCI: vitis vinifera seed oil
- macadamia oil ICI: Macadamia ternifolia seed oil
- refined oleic sunflower oil Helianthus annuus seed oil
- volatile oil we mean an oil capable of evaporating from the skin in less than an hour at room temperature and atmospheric pressure.
- Volatile oils can for example be chosen from silicone oils or triglycerides of short fatty acids to reduce the greasy feel.
- the oil(s) is/are present in a content ranging from 0.5 to 70% by weight, preferably from 1 to 60% by weight, preferably from 2 to 50 % by weight, preferably from 5 to 40% by weight, preferably from 5 to 30% by weight relative to the total weight of the composition.
- wax is meant a fatty substance with a reversible liquid/solid state change, having a melting temperature greater than 25°C, generally between 30°C and 90°C, which can be made liquid under the conditions of preparation of the composition and presents in the solid state an anisotropic crystalline organization.
- the waxes used according to the invention can consist of polar or apolar waxes or a mixture of the two.
- apolar is meant a wax containing only carbon, hydrogen and/or phosphorus atoms and in particular a hydrocarbon.
- the polar waxes may in particular be chosen from animal waxes, vegetable waxes and synthetic or silicone waxes containing polar groups such as esters.
- These waxes can in particular be used in predispersed form in an oil, as is the case with the mixture of candelilla wax and jojoba seed oil.
- these waxes are vegetable or of plant origin.
- the wax or wax(es) is/are present in a content ranging from 0.5 to 50% by weight, preferably from 1 to 25% by weight, preferably from 5 to 10% by weight, relative to the total weight of the composition.
- pasty compound lipophilic fatty substances which, like waxes, are capable of undergoing a reversible liquid/solid state change and have an anisotropic crystalline organization in the solid state, but which differ from waxes by the fact that they contain, at a temperature of 23°C, a liquid fraction and a solid fraction.
- These pasty compounds are preferably vegetable butters or butters of vegetable origin, such as shea butter or camellia butter.
- the pasty compound(s) is/are present in a content ranging from 0.5 to 50% by weight, preferably from 1 to 25% by weight, preferably from 5 to 10% by weight, relative to the total weight of the composition.
- gelling agent is meant a compound which, in the presence of a solvent, creates more or less strong inter-macromolecular bonds, thus inducing a three-dimensional network which freezes said solvent.
- gelling agent we also mean thickening or rheological agents, acting on the viscosity and flow properties of an aqueous phase or a fatty phase.
- the gelling agent makes it possible in particular to increase the viscosity of the continuous phase, for example to adjust the viscosity of the continuous phase to a value ranging from 100 mPa.s to 20,000 mPa.s.
- the gelling agent can be chosen from polymers of synthetic origin or of plant origin, preferably of plant origin, chemically modified or not. It can thus be chosen from gums derived from plants such as gum arabic, konjac gum, guar gum or their derivatives, gums extracted from algae such as alginates; gums resulting from microbial fermentation such as xanthans, for example, the product Keltrol CG (INCI: xanthan gum), sold by the company CP KELCO or the product Xanthan Gum FNCS-PC (INCI: xanthan gum) sold by the company JUNGBUNZLAUER INTERNATIONAL AG, mannans, scleroglucans or their derivatives; cellulose and its derivatives such as carboxymethylcellulose or hydroxyethylcellulose; starch and its derivatives such as in particular native starches and modified starches, in particular pregelatinized, acetylated, hydroxypropylated, carboxymethylated, cationic, octenyl
- the gelling agent may be a mineral gelling agent chosen from magnesium and/or aluminum silicates.
- An example of such a mineral gelling agent is Veegum® Pure from Vanderbilt Minerals LLC, which is a magnesium aluminum silicate.
- the gelling agent(s) is/are present in a content ranging from 0.1 to 50% by weight, preferably from 0.5 to 25% by weight, preferably from 0.3 to 15% by weight, relative to the total weight of the composition.
- binding agent compounds conferring increased cohesion to the cosmetic composition. This cohesion can be adjusted according to the quantity and chemical affinity of the binding agent in relation to the ingredients of the cosmetic composition.
- the binder will be chosen from caprylic/capric acid triglycerides such as the product Labrafac CC (INCI: capric/caprylic triglycerides) or Cetyl Dimethicone (INCI).
- caprylic/capric acid triglycerides such as the product Labrafac CC (INCI: capric/caprylic triglycerides) or Cetyl Dimethicone (INCI).
- the binder(s) is/are present in the composition according to the invention at a content ranging from 0.5% to 20%, preferably from 1 to 15%, preferably from 5 to 15%. 12%, by weight relative to the total weight of the composition.
- the cosmetic composition according to the invention may also comprise one or more oil-in-water (O/W) or water-in-oil (W/O) emulsifiers.
- O/W oil-in-water
- W/O water-in-oil
- the oil-in-water (O/W) emulsifier is an emulsifying agent with an HLB greater than or equal to 8 and chosen from optionally polyethoxylated sorbitan esters, esters of fatty acids and glycerol, esters or polyesters of fatty acids and sucrose, esters of fatty acids and polyethylene glycol, polyether-modified polysiloxanes, ethers of fatty alcohols and polyethylene glycol, alkyl polyglycosides and hydrogenated lecithin, fatty alcohols, sorbitan esters without that this list is not exhaustive, and their mixtures.
- the O/W emulsifier can be advantageously chosen from emulsifying systems composed of a cyclodextrin and a water-in-oil emulsifier of natural origin, such as the emulsifying system marketed by Roquette Fromme under the name Beauté by Roquette® DS 146, or among emulsifying systems based on modified starches and vegetable gums, such as Beauté by Roquette® DS 421 sold by the applicant.
- the water-in-oil (W/O) emulsifier is an emulsifying agent with an HLB of less than 8 and chosen from non-ethoxylated fatty esters of polyols, and in particular from non-ethoxylated fatty esters of glycerol, polyglycerols, sorbitol, sorbitan, anydrohexitols such as in particular isosorbide, mannitol, xylitol, erythritol, maltitol, sucrose, glucose, polydextrose, hydrogenated glucose syrups, dextrins and starches hydrolyzed.
- HLB water-in-oil
- the emulsifying agent(s) is/are present in the composition according to the invention at a content ranging from 0.5% to 20%, preferably from 1 to 15%, of preferably from 2 to 12%, by weight relative to the total weight of the composition.
- the composition according to the invention comprises at least one surfactant chosen from ionic, nonionic, anionic, cationic or amphoteric or zwitterionic surfactants. These surfactants are chosen for their detergent and foaming function. [0235] According to another embodiment, the composition according to the invention comprises at least one surfactant chosen from anionic surfactants, amphoteric or zwitterionic surfactants.
- the anionic surfactants are chosen from carboxylic anionic surfactants, sulfated anionic surfactants, sulfonate surfactants, phosphate anionic surfactants, and mixtures thereof, preferably from sulfonate anionic surfactants, carboxylic anionic surfactants, and mixtures thereof.
- anionic surfactant is meant a surfactant comprising only anionic groups as ionic or ionizable groups.
- an entity is qualified as being “anionic” when it has at least one permanent negative charge or when it can be ionized into a negatively charged entity, under the conditions of use of the composition of the invention. (medium, pH for example) and not including a cationic charge.
- sulfated anionic surfactant is meant an anionic surfactant comprising at least one sulfate function (-OSO3H or -OSO3), and possibly also comprising one or more other functions derived from acids, such as carboxylic acid or carboxylate functions.
- alkyl sulfates, alkyl ether sulfates, alkyl amido ether sulfates, alkylaryl polyethers sulfates, monoglyceride sulfates, as well as the salts of these compounds are sulfated anionic surfactants.
- the alkyl groups of these compounds cited by way of example contain from 6 to 30 carbon atoms, and the aryl group denotes a phenyl or benzyl group.
- non-sulfated anionic surfactant means a surfactant which does not fall within the definition of “sulfated anionic surfactant” as defined above.
- the anionic carboxylic surfactants comprise at least one carboxylic or carboxylate function (-COOH or -COO), but do not include a sulfonic or sulfonate function (-SO3H or -SO3), nor a sulfate function (-OSO3H or -OSO3);
- the anionic sulfonate surfactants comprise at least one sulfonic or sulfonate function (-SO3H or -SO3), and may optionally also comprise one or more carboxylic or carboxylate functions (-COOH or -COOj and/or phosphates, but do not include sulfate function (-OSO3H or -OSO3).
- - anionic phosphate surfactants include at least one phosphoric or phosphate function (-OPO3H2 or -OPO3 2 ), but do not include a carboxylic function or carboxylate (-COOH or -COO), nor a sulfonic or sulfonate function (-SO3H or -SO3), nor a sulfate function (-OSO3H or -OSO3).
- an anionic surfactant comprising at least one sulfate function (-OSO3H or -OSO3), and at least one carboxylic or carboxylate function (-COOH or -COO), is considered, within the meaning of the invention and unless otherwise indicated , as a sulfated anionic surfactant;
- an anionic surfactant comprising at least one sulfate function (-OSO3H or -OSO3), and at least one sulfonic or sulfonate function (-SO3H or -SO3), is considered, within the meaning of the invention and unless otherwise indicated , as a sulfated anionic surfactant;
- an anionic surfactant comprising at least one sulfonic or sulfonate function (-SO3H or -SO3), and at least one carboxylic or carboxylate function (-COOH or -COO), is considered, within the meaning of the invention and except otherwise indicated, as a non-sulfated anionic sulfonate surfactant; • an anionic surfactant comprising at least one sulfate function (-OSO3H or -OSO3), and at least one sulfonic or sulfonate function (-SO3H or -SO3 j, and at least one carboxylic or carboxylate function (-COOH or -COO, is considered, within the meaning of the invention and unless otherwise indicated, as a sulfated anionic surfactant.
- the anionic carboxylic surfactants can be chosen from the following compounds: acylglycinates, acyllactylates, acylsarcosinates, acylglutamates; alkyl-D-galactoside-uronic acids, alkylethercarboxylic acids, alkyl(aryl)ethercarboxylic acids, alkylamidoethercarboxylic acids; as well as the salts of these compounds.
- the alkyl and/or acyl groups of these compounds contain from 6 to 30 carbon atoms, more preferably from 8 to 28, even more preferably from 10 to 24, even better from 12 to 22, carbon atoms.
- the aryl group preferably denotes a phenyl or benzyl group.
- These compounds can be polyoxyalkylenated, in particular polyoxyethylenated, and then preferably contain from 1 to 50 ethylene oxide units, better still from 2 to 10 ethylene oxide units. It is also possible to use monoesters of C6-C24 alkyl and polyglycoside-polycarboxylic acids such as C6-C24 alkyl polyglycosidecitrates, C6-C24 alkyl polyglycoside-tartrates, and their salts.
- the anionic carboxylic surfactants are chosen from:
- acylglutamates in particular C6 C24, or even C12-C20, such as stearoylglutamates, and in particular sodium or disodium stearoylglutamate or cocoylglutamates, in particular sodium or disodium cocoyl glutamate;
- acylsarcosinates in particular at C6 C24, or even at C12-C20, such as cocoyl sarcosinates and in particular sodium cocoyl sarcosinate, lauroyl sarcosinates and in particular sodium lauroyl sarcosinate, palmitoylsarcosinates, and in particular sodium palmitoyl sarcosinate ;
- acyllactylates in particular C12-C28, or even C14-C24, such as behenoyllactylates, and in particular sodium behenoyllactylate, (iso)stearoyl lactylates, and in particular sodium (iso)stearoyl lactylate;
- acylglycinates in particular C12-C20 such as cocoyl glycinates and in particular sodium cocoyl glycinate;
- alkyl(C6-C30)ethercarboxylic acids in particular alkyl(C6-C24)ethercarboxylic acids
- alkyl(C6-C30)amidoethercarboxylic acids in particular alkyl(C6-C24)amidoethercarboxylic acids
- the anionic sulfonate surfactants may be chosen from the following compounds: alkylsulfonates, alkylamidesulfonates, alkylarylsulfonates, C6-C24 alkyl polyglycoside-sulfosuccinates, alphaolefinsulfonates, paraffinsulfonates, alkylsulfosuccinates, alkyl ethersulfosuccinates, alkylamidesulfonates.
- alkyl groups of these compounds comprising from 6 to 30 carbon atoms, in particular from 12 to 28, even better from 14 to 24, or even from 16 to 22, carbon atoms; the aryl group preferably designating a phenyl or benzyl group; these compounds being able to be polyoxyalkylenated, in particular polyoxyethylenated and then preferably comprising from 1 to 50 ethylene oxide units, better still from 2 to 10 ethylene oxide units.
- the anionic sulfonate surfactants are chosen from: C6-C24 alkylsulfosuccinates, in particular C12-C20 alkylsulfosuccinates, in particular laurylsulfosuccinates; C6-C24 alkylethersulfosuccinates, especially C12-C20; (C6-C24) acylisethionates, preferably (C12-C18) acylisethionates; alpha-olefin sulfonates; and their mixtures; and in particular in the form of salts of alkali or alkaline earth metals, of ammonium, or of amino alcohol.
- the anionic surfactants can be chosen from C6-C24 alkyl monoesters and polyglycoside dicarboxylic acids such as alkyl glucoside citrates, alkyl polyglycoside tartrates and alkyl polyglycosidesulfosuccinates, alkylsulfosuccinamates, acylisethionates and N-acyltaurates, the alkyl or acyl group of all these compounds preferably comprising from 12 to 20 carbon atoms.
- Another group of anionic surfactants which can be used in the compositions of the present invention is that of acyllactylates whose acyl group contains from 8 to 20 carbon atoms.
- alkyl-D-galactosideuronic acids and their salts mention may also be made of alkyl-D-galactosideuronic acids and their salts as well as polyoxyalkylenated (C6-C24 alkyl)ether carboxylic acids, polyoxyalkylenated (C6-24 alkyl)(C6-C24 aryl)ether carboxylic acids. , (C6-24 alkyl)amidoether-polyoxyalkylenated carboxylic acids and their salts, in particular those comprising from 2 to 50 ethylene oxide units, and their mixtures.
- the anionic phosphate surfactants are chosen from: C6-C24 alkyl phosphates, in particular C12-C20; C6-C24 alkyl ether phosphates, particularly C12-C20; and their mixtures.
- amphoteric or zwitterionic surfactants may be chosen from secondary or tertiary or quaternary aliphatic amine derivatives, in which the aliphatic group is a linear or branched chain comprising from 8 to 22 carbon atoms and containing at least one anionic group. such as, for example, a carboxylate, sulfonate, sulfate, phosphate or phosphonate group.
- alkyl (C8-C20) betaines for example cocobetaine; sulfobetaines; alkyl (C8-C20)sulfobetaines; alkyl(C8-C20)amidoalkyl(C3-C8)betaines, for example cocamidopropylbetaine; or alkyl (C8-C20)amidoalkyl (C6-C8)sulfobetaines.
- the cationic surfactants can be chosen from Cetrimonium Chloride marketed under the reference Microcare Quat CTC 30.
- the surfactant(s) is/are present in the composition according to the invention at a content ranging from 0.1% to 40%, preferably from 0.5 to 30%, preferably from 1 to 20%, preferably 2 to 12% by weight relative to the total weight of the composition.
- the film-forming agent may be chosen from polymers of natural origin such as hydroxy propyl methyl cellulose (HPMC), hydroxypropyl cellulose (HPC), or synthetic polymers such as polyvinyl alcohol ( PVA), and/or plasticizers other than polyols, such as polyethylene glycol, triethylcitrate, polysorbate, or even waxes such as Carnauba wax, or hydrogenated castor oil.
- HPMC hydroxy propyl methyl cellulose
- HPC hydroxypropyl cellulose
- PVA polyvinyl alcohol
- plasticizers other than polyols such as polyethylene glycol, triethylcitrate, polysorbate, or even waxes such as Carnauba wax, or hydrogenated castor oil.
- the film-forming agent(s) is/are present in the composition according to the invention at a content ranging from 0.1% to 20%, preferably from 0.5 to 15%. , preferably from 1 to 12%, by weight relative to the total weight of the composition.
- the cosmetic composition according to the invention may also comprise at least one coloring material chosen from water-soluble or fat-soluble dyes, the fillers having the effect of coloring and/or opacifying the composition and/or of coloring the keratin materials, preferably the skin or hair, such as pigments, pearls, lacquers (water-soluble dyes adsorbed on an inert mineral support), and their mixtures.
- These coloring materials may optionally be surface treated with a hydrophobic agent such as silanes, silicones, fatty acid soaps, C9-15 fluoroalcohol phosphates, acrylate/dimethicone copolymers, mixed C9-15 fluoroalcohol phosphates/silicone copolymers, lecithins, wax.
- pigments means white or colored particles, mineral or organic, intended to color and/or opacify the cosmetic composition.
- pigments include iron, titanium or zinc oxides, as well as composite pigments and goniochromatic, pearlescent, interference, photochromic or thermochromic pigments, without this list being exhaustive.
- pearl means any colored particles, iridescent or not, which exhibit a color effect through optical interference.
- the makeup and/or care composition according to the invention comprises at least colored particles, preferably pigments such as iron oxide pigments and/or nacres.
- the coloring material(s) is/are present in the composition according to the invention at a content ranging from 0.05% to 20%, preferably from 0.1% to 15%. %, preferably from 0.5 to 12%, by weight relative to the total weight of the composition.
- One or more sensory charge(s) or powder(s) are provided.
- filler or sensory powder any particle of any shape (in particular spherical or lamellar), mineral or organic, insoluble in the composition.
- filler or sensory powder are talc, boron nitride, starch such as the granular starches Beauté by Roquette® ST 005 and Beauté by Roquette® ST 012 sold by the company ROQUETTE, polyamides, silicone resins, silicone elastomer powders and acrylic polymer powders, in particular poly(methyl methacrylate) or styrene acrylate copolymer powders (Sunsphere Powders from Dow).
- the filler(s) is/are present in the composition according to the invention at a content ranging from 0.5% to 20%, preferably from 1 to 15%, preferably from 3 to 12%, by weight relative to the total weight of the composition.
- One or more sensory agent(s) are provided.
- the sensory agents make it possible to modify the sensory profile of the cosmetic or dermatological composition, to make it more pleasant for use on the skin.
- the sensory agents can be chosen from modified starches such as carboxymethylated starches, for example Beauté by Roquette® ST 118 from Roquette, silicas, or talcs, or mixtures thereof. These sensory agents provide softness to the touch for solid compositions, or a cushion effect for compositions in liquid or gel form.
- the sensory agent(s) is/are present in the composition according to the invention at a content ranging from 0.1% to 20%, preferably from 1 to 15%, of preferably from 3 to 12%, by weight relative to the total weight of the composition.
- the cosmetic composition may comprise one or more active ingredients.
- active ingredients could be of a very broad chemical nature due to the fact, as the applicant was able to observe, that hyperbranched dextrin, preferably hyperbranched and hydrogenated dextrin, is rather inert, has low reactivity and very good compatibility with the most active ingredients used in dermatological compositions/topical formulations.
- These active ingredients may be chosen from moisturizing, emollient, film-forming, barrier, anti-pollution, tensor, anti-aging, anti-oxidant, exfoliant, collagen stimulant, anti-acne, sebum reducer, blood circulation stimulant, refreshing, antibacterial agents. , antifungal, anti-inflammatory, soothing, anti-irritant, healing, slimming, pigmenting, coloring, mattifying and fragrant.
- soothing agents those extracted from plants will be preferentially used.
- C-glycosides such as those described in document FR2902998.
- the hyperbranched dextrins can be combined with another anti-inflammatory cosmetic active ingredient or with a soothing active ingredient.
- the active principle(s) is/are present in the composition according to the invention at a content ranging from 0.05% to 20%, preferably from 0.1 to 10% , preferably from 0.5 to 6%, by weight relative to the total weight of the composition.
- the dermatological compositions according to the invention are particularly suitable for intolerant and/or irritable skin as well as sensitive scalps.
- Irritable or intolerant skin has been defined in patent FR2918886.
- Intolerant skin is skin that reacts with feelings of heating, tightness, tingling and/or redness, to different factors such as the application of cosmetic or dermatological products. In general, these signs are associated with erythema and hyperseborrheic or acneic skin, even rosaceiform, with or without scathes.
- Irritable skin is skin that reacts with pruritus, that is to say with itching or tingling, to different factors such as the environment, emotions, food, wind, friction. , the razor, hard water with a high concentration of lime, temperature variations or wool. Most often, irritability of the skin results in visible signs such as skin redness, a feeling of heating of the skin or scalp which can go as far as a feeling of pain.
- sensitive scalp we mean scalps for which the sensations of itching and/or tingling and/or heating are essentially triggered by local factors such as friction, soap, surfactants, hard to strong water. limescale concentration, shampoos or lotions. These sensations are also sometimes triggered by factors such as the environment, emotions and/or foods. Erythema and hyperseborrhea of the scalp as well as dandruff are frequently associated with the preceding signs.
- Example 1 in-vitro determination of the effect of hyperbranched and hydrogenated dextrins on skin inflammation on a 2D reconstructed human epidermis model
- the objective of the study is to determine the effect of hyperbranched and hydrogenated dextrins on biomarkers of inflammation using a human epidermis model reconstructed in two dimensions (2D) after inflammatory pre-treatment.
- 2D two dimensions
- the model used is a two-dimensional reconstruction of the human epidermis, adapted from the Poumay et al., 2004 method (1 Poumay, Y., Dupont, F., Marcoux, S., Leclerk-Smekens, M., Herin , M. And Coquette, A. (2004) A simple reconstructed human epidermis: preparation of the culture model and utilization in in vitro studies. Arch. Dermatol. Res. 296: 203-211).
- This model includes a monolayer of normal human epidermal keratinocytes (NHEK, one of the major cell types in the skin), which were cultured on inert polycarbonate inserts.
- test substances can be applied locally, directly to the surface of the epidermis, and their irritant potential and/or their effectiveness can be evaluated using a number of parameters, including the levels of expression of key cellular markers of inflammation.
- the epidermis were treated with an aqueous solution of Sodium Lauryl Sulfate (SLS) at 0.5% for 6 hours so as to create inflammation of the reconstructed epidermis, then the surface of the epidermis was rinsed with 500 ⁇ L of PBS.
- 20pL of different concentrations of hydrogenated and highly branched dextrins (10 and 5% in ultrapure water) as well as Betamethasone cream at 0.05% (Biogaran cream, is a corticosteroid with an anti-inflammatory role) were applied topically on the epidermis for 20 hours at 37°C. No application was made for the SLS control within 20 hours following the PBS rinse.
- the irritant chemical compounds are capable of penetrating the stratum corneum and are cytotoxic for the cells of the underlying layers.
- Cell viability has been shown to directly correlate with the irritant potential of chemical compounds.
- Cell viability is measured during the metabolism, by mitochondrial succinic dehydrogenase, of the vital dye MTT [3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide, thiazolyl blue; EINECS number 206-069-5, CAS number 298-93 -1)], into a blue formazan salt which is measured quantitatively after its extraction from the tissues.
- the colored solution is measured spectrophotometrically at 570 nm using the Molecular Devices VMAX microplate reader. and the absorbance values are recorded via SOFTmax PRO v4.7.1 software. Statistical analysis is carried out using Graph Pad Prism v5.03 software.
- the interleukins IL-1 ⁇ and IL-8 and tumor necrosis factor-a are measured in order to determine whether or not the treatment has induced an inflammatory reaction in the treated tissue.
- the cell supernatants are taken after the required treatment time and commercially available ELISA kits are used in order to quantitatively determine the presence of the inflammation markers.
- ELISA kits are intended for quantitative measurements of the markers mentioned in particular in culture supernatants using specific human antibodies.
- the samples as well as a range of standards are deposited in each well (96-well plate) in duplicate.
- the targeted marker present in a sample is bound by the antibody immobilized in the bottom of the well.
- the wells are washed and a biotinylated antibody is added.
- HRP-streptavidin is deposited in the wells.
- TMB substrate solution is added to the wells and the color develops in proportion to the amount of marker bound.
- a developing solution changes the color from blue to yellow, and its intensity is measured at 450nm using the Molecular Devices VMAX microplate reader.
- Absorbance values are recorded and analyzed via the SOFTmax PRO software v4.7.1. The inflammatory response is interpreted in the form of a sample/untreated ratio greater than or equal to 2.
- a ratio greater than or equal to 2 reflects overexpression of the inflammation marker while a ratio less than 2 indicates non-expression of the inflammation marker.
- the hyperbranched dextrin “Nutriose® HM 06” according to the invention significantly reduces the expression of IL-1 ⁇ (reduction of 25 and 28%).
- Betamethasone also significantly reduces the expression of IL-1 ⁇ (decrease of 33%).
- no significant difference is observed between the compound according to the invention and betamethasone, a positive control testifying to the anti-inflammatory effect of the compound according to the invention.
- a ratio > 1.5 reflects overexpression of the inflammation marker.
- a ratio ⁇ 0.65 reveals underexpression of the inflammation marker.
- the signals are usable when they are greater than the average background noise + 2SD.
- An overexpression or underexpression of 5 markers was observed with inflammation at 0.5% SLS.
- a reduction in the expression of these markers was also noted by the addition of the treatment based on the hyperbranched dextrin “Nutriose® HM 06”.
- the hyperbranched dextrin Nutriose HM 06 therefore reduces the expression of major markers of inflammation (IL-1 alpha and IL-1 beta), and can therefore be qualified as an anti-irritant. This dextrin has anti-inflammatory properties.
- Example 2 in-vitro determination of the effect of hyperbranched dextrins on membrane integrity on a 3D reconstructed human epidermis model
- the objective of the study was to evaluate the membrane integrity of skin cells on a model of human epidermis reconstructed in three dimensions (3D), by measuring the quantity of the enzyme lactate dehydrogenase ( denoted LDH) in the culture supernatant, by colorimetry.
- LDH lactate dehydrogenase
- the absence of LDH secretion is a sign that the integrity of the epidermal cell membranes is preserved.
- Samples of human epidermis reconstructed in 3D were immersed in an aqueous solution containing 0.5% by weight of sodium lauryl sulfate, for 6 hours. Then the solution was removed, and the samples were immersed in different solutions for 20 hours: 1 sample in an aqueous solution of Nutriose® HM 06 at 5% by weight, another sample in an aqueous solution of bisabolol at 0, 5% by weight, and another sample in an aqueous solution of betamethasone at 0.5% by weight. The amount of LDH secreted into the supernatant was then determined colorimetrically.
- the objective of the study is to determine the effect of a hyperbranched dextrin, sold under the reference Nutriose® HM 06 by Roquette, on transepidermal water loss (or TEWL according to the usual English term). induced by shaving facial skin thanks to the topical application of said dextrin in the form of a lotion (aftershave), during a clinical study on volunteers.
- compositions of aftershave creams [0342] Compositions of aftershave creams
- the faces of the volunteers are evaluated by measuring the transepidermal water loss (TEWL for “trans epidermal water loss” according to the usual English term).
- TEWL trans epidermal water loss
- This measurement allows an evaluation of the barrier function of the skin: the value of water loss is in fact inversely proportional to the barrier function of the skin.
- the measurements of transepidermal water evaporation, expressed in g/h/m2) were carried out on a Tewameter TM300® from the manufacturer “Courage & Khazaka electronics”, using the open room diffusion technique. Approximately twenty successive measurements are taken on the surface of the face subjected to shaving, and an average value is retained.
- the volunteers replaced their usual razor and shaving cream with the study razor and shaving cream three days before the start of the study.
- the study was then started by carrying out an assessment of the volunteers' faces in the laboratory after shaving and application of aftershave lotion in the laboratory premises (“day 0” measurement). The measurement was repeated 10 minutes after the “day 0” measurement.
- Example 3 clinical study on transepidermal water loss (TEWL) and redness induced by sodium lauryl sulfate [0355]
- the objective of the study is to determine the effect of a hyperbranched dextrin, sold under the reference Nutriose® HM 06 by Roquette, on the redness created by irritation of the skin of the inner forearm by a 10% SLS patch test, during a clinical test on volunteers.
- Volunteers and products [0357] The volunteers were the same as for the clinical study of Example 2 (study on shaving), distributed according to the same groups, with the same products (Table 6 of Example 2).
- the color of the skin was evaluated by colorimetry using a “CM2600D TM spectrocolorimeter” chromameter from the manufacturer Minolta. Color measurements were made according to the following parameters: standard field of vision of 10°, D65 illumination corresponding to daylight, measurement on square areas of 8 mm side, color space used L*a*b* , SCI method (specular included) to free itself from surface conditions.
- the vertical dimension L* represents the brightness (or luminance) with values ranging from 0 (black) to 100 (white).
- the a* parameter determines a range of 600 levels on the red axis (+299 positive values) through gray (value of 0) to green (-300 negative values).
- the b* parameter determines a range of 600 levels on the yellow axis (+299 positive values) up to blue (-300 negative values) passing gray (value of 0).
- the parameter a* representing the redness of the skin, was determined.
- ⁇ Treated((Day x) - Day 1) (a* of the treated area on day x) - (a* of the treated area on day 1), for the three groups.
- the table represents the differences in variations in redness over time between the treated and untreated skin areas.
- the hyperbranched dextrin Nutriose® HM 06 reduces the redness caused by SLS significantly from 10 minutes compared to the placebo group and the reference group, and this reduction is then maintained for up to 7 days.
- the reduction in skin redness by application of Nutriose HM 06 hyperbranched dextrin showed that this dextrin helped reduce skin inflammation caused by the SLS 10% patch.
- Table 14 represents the variations in transepidermal water loss in the treated areas of the forearm compared to day 1.
- the hyperbranched dextrin Nutriose® HM 06 made it possible to significantly reduce transepidermal water loss from 30 minutes after application, then gradually increased over the treatment period ranging from 2 to 7 days, for achieve a greater reduction value in water loss compared to the placebo group of approximately 6.6 units (i.e. a difference of approximately 195%).
- This hyperbranched dextrin therefore made it possible to maintain the hydration of the skin by maintaining the barrier function of the skin.
- Example 4 formulations of cosmetic products comprising a hydrogenated and highly branched dextrin according to the subject of the request
- phase A and phase B were prepared at 70°C in two separate beakers. Phase B was then emulsified in phase A with stirring at high shear for 10 minutes. It was then cooled to 20°C +/-2°C. Phase C was then added with stirring, then finally phase D. The pH was finally adjusted to 6. A white cream was obtained, having a Brookfield viscosity of 3500 mPa.s +/- 700 (spindle no. 4 at 20 rpm). [0383] Aftershave gel
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Abstract
Description
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Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020247033149A KR20240165966A (ko) | 2022-03-30 | 2023-03-30 | 피부 염증의 적어도 하나의 증상의 예방 또는 치료에 국소적으로 사용하기 위한 과분지형 덱스트린 |
| EP23716766.3A EP4499034A1 (fr) | 2022-03-30 | 2023-03-30 | Dextrines hyperbranchees pour leur utilisation topique pour la prevention ou le traitement d'au moins un symptome de l'inflammation cutanee |
| CN202380031776.7A CN118973550A (zh) | 2022-03-30 | 2023-03-30 | 用于局部使用以预防或治疗至少一种皮肤炎症症状的超支化糊精 |
| JP2024555253A JP2025510664A (ja) | 2022-03-30 | 2023-03-30 | 皮膚炎症の少なくとも1つの症状の予防又は治療における局所使用のための超分岐デキストリン |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2202905A FR3134004B1 (fr) | 2022-03-30 | 2022-03-30 | Dextrines hyperbranchées pour leur utilisation topique pour la prévention ou le traitement d’au moins un symptôme de l’inflammation cutanée. |
| FRFR2202905 | 2022-03-30 |
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| Publication Number | Publication Date |
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| WO2023186353A1 true WO2023186353A1 (fr) | 2023-10-05 |
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| PCT/EP2023/025145 Ceased WO2023186353A1 (fr) | 2022-03-30 | 2023-03-30 | Dextrines hyperbranchees pour leur utilisation topique pour la prevention ou le traitement d'au moins un symptome de l'inflammation cutanee |
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| EP (1) | EP4499034A1 (fr) |
| JP (1) | JP2025510664A (fr) |
| KR (1) | KR20240165966A (fr) |
| CN (1) | CN118973550A (fr) |
| FR (1) | FR3134004B1 (fr) |
| WO (1) | WO2023186353A1 (fr) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1006128A1 (fr) * | 1998-12-04 | 2000-06-07 | Roquette FrÀ¨res | Maltodextrines branchées et leur procédé de préparation |
| FR2884422A1 (fr) * | 2005-04-18 | 2006-10-20 | Roquette Freres | Composition anti-inflammatoire de l'intestin comprenant des maltodextrines branchees |
| FR2902998A1 (fr) | 2006-07-03 | 2008-01-04 | Oreal | Utilisation d'au moins un derive c-glycoside a titre d'agent apaisant |
| FR2918886A1 (fr) | 2007-07-17 | 2009-01-23 | Oreal | Utilisation d'au moins un extrait bacterien cultive sur eau thermale pour le traitement des peaux, muqueuses et cuirs chevelus sensibles |
| EP1169015B1 (fr) * | 1999-03-18 | 2009-05-13 | Unilever PLC | Composition cosmetique pour la peau contenant du dextran et un acide carboxylique faible |
| US20190192539A1 (en) * | 2016-09-30 | 2019-06-27 | Yoo's Biopharm Inc. | Composition for prevention or treatment of inflammatory skin diseases or severe pruritus comprising the aqueous solubilized ursodeoxycholic acid |
| FR3093429A1 (fr) * | 2019-03-08 | 2020-09-11 | Roquette Freres | utilisation de dextrines branchées en soin ou hygiène bucco-dentaire |
-
2022
- 2022-03-30 FR FR2202905A patent/FR3134004B1/fr active Active
-
2023
- 2023-03-30 WO PCT/EP2023/025145 patent/WO2023186353A1/fr not_active Ceased
- 2023-03-30 JP JP2024555253A patent/JP2025510664A/ja active Pending
- 2023-03-30 KR KR1020247033149A patent/KR20240165966A/ko active Pending
- 2023-03-30 CN CN202380031776.7A patent/CN118973550A/zh active Pending
- 2023-03-30 EP EP23716766.3A patent/EP4499034A1/fr active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1006128A1 (fr) * | 1998-12-04 | 2000-06-07 | Roquette FrÀ¨res | Maltodextrines branchées et leur procédé de préparation |
| EP1169015B1 (fr) * | 1999-03-18 | 2009-05-13 | Unilever PLC | Composition cosmetique pour la peau contenant du dextran et un acide carboxylique faible |
| FR2884422A1 (fr) * | 2005-04-18 | 2006-10-20 | Roquette Freres | Composition anti-inflammatoire de l'intestin comprenant des maltodextrines branchees |
| FR2902998A1 (fr) | 2006-07-03 | 2008-01-04 | Oreal | Utilisation d'au moins un derive c-glycoside a titre d'agent apaisant |
| FR2918886A1 (fr) | 2007-07-17 | 2009-01-23 | Oreal | Utilisation d'au moins un extrait bacterien cultive sur eau thermale pour le traitement des peaux, muqueuses et cuirs chevelus sensibles |
| US20190192539A1 (en) * | 2016-09-30 | 2019-06-27 | Yoo's Biopharm Inc. | Composition for prevention or treatment of inflammatory skin diseases or severe pruritus comprising the aqueous solubilized ursodeoxycholic acid |
| FR3093429A1 (fr) * | 2019-03-08 | 2020-09-11 | Roquette Freres | utilisation de dextrines branchées en soin ou hygiène bucco-dentaire |
Non-Patent Citations (4)
| Title |
|---|
| "Handbook of Pharmaceutical Excipients - Fifth Edition", 1 January 2006, PHARMACEUTICAL PRESS, UK / USA, ISBN: 978-0-85-369618-6, article S FREERS: "Maltodextrin", pages: 442 - 444, XP055075444 * |
| CAS , no. 298-93 -1 |
| HAKOMORI, S.: "A rapid Permethylation of Glycolipid, and Polysaccharide Catalyzed by Methylsulfinyl Carbanion in Dimethyl Sulfoxide", J. BIOCHEM., vol. 55, 1964, pages 205 |
| POUMAY, Y.DUPONT, F.MARCOUX, S.LECLERK-SMEKENS, M.HERIN, M.COQUETTE, A.: "A simple reconstructed human epidermis: préparation of the culture model and utilization in in vitro studies", ARCH. DERMATOL. RES., vol. 296, 2004, pages 203 - 211, XP002510240, DOI: 10.1007/s00403-004-0507-y |
Also Published As
| Publication number | Publication date |
|---|---|
| EP4499034A1 (fr) | 2025-02-05 |
| FR3134004B1 (fr) | 2025-06-06 |
| JP2025510664A (ja) | 2025-04-15 |
| KR20240165966A (ko) | 2024-11-25 |
| CN118973550A (zh) | 2024-11-15 |
| FR3134004A1 (fr) | 2023-10-06 |
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