WO2002047655A1 - Composition, notamment cosmetique, comprenant la 7-hydroxy dhea et/ou la 7-ceto dhea et au moins un inhibiteur de no-synthase - Google Patents
Composition, notamment cosmetique, comprenant la 7-hydroxy dhea et/ou la 7-ceto dhea et au moins un inhibiteur de no-synthaseInfo
- Publication number
- WO2002047655A1 WO2002047655A1 PCT/FR2001/003946 FR0103946W WO0247655A1 WO 2002047655 A1 WO2002047655 A1 WO 2002047655A1 FR 0103946 W FR0103946 W FR 0103946W WO 0247655 A1 WO0247655 A1 WO 0247655A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- dhea
- composition
- skin
- composition according
- hydroxy
- Prior art date
Links
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- 108010068815 steroid hormone 7-alpha-hydroxylase Proteins 0.000 description 1
- 150000003431 steroids Chemical class 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000035900 sweating Effects 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
- 229930003799 tocopherol Natural products 0.000 description 1
- 239000011732 tocopherol Substances 0.000 description 1
- 235000019149 tocopherols Nutrition 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
- 230000035899 viability Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
- QUEDXNHFTDJVIY-UHFFFAOYSA-N γ-tocopherol Chemical class OC1=C(C)C(C)=C2OC(CCCC(C)CCCC(C)CCCC(C)C)(C)CCC2=C1 QUEDXNHFTDJVIY-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- A61Q19/08—Anti-ageing preparations
-
- 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
- A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
- A61K8/49—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing heterocyclic compounds
- A61K8/4973—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing heterocyclic compounds with oxygen as the only hetero atom
- A61K8/498—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing heterocyclic compounds with oxygen as the only hetero atom having 6-membered rings or their condensed derivatives, e.g. coumarin
-
- 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
- A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
- A61K8/63—Steroids; Derivatives thereof
-
- 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
- A61K8/96—Cosmetics or similar toiletry preparations characterised by the composition containing materials, or derivatives thereof of undetermined constitution
- A61K8/97—Cosmetics or similar toiletry preparations characterised by the composition containing materials, or derivatives thereof of undetermined constitution from algae, fungi, lichens or plants; from derivatives thereof
- A61K8/9771—Ginkgophyta, e.g. Ginkgoaceae [Ginkgo family]
-
- 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
- A61K8/96—Cosmetics or similar toiletry preparations characterised by the composition containing materials, or derivatives thereof of undetermined constitution
- A61K8/97—Cosmetics or similar toiletry preparations characterised by the composition containing materials, or derivatives thereof of undetermined constitution from algae, fungi, lichens or plants; from derivatives thereof
- A61K8/9783—Angiosperms [Magnoliophyta]
- A61K8/9789—Magnoliopsida [dicotyledons]
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P17/00—Drugs for dermatological disorders
-
- 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
- A61K2800/78—Enzyme modulators, e.g. Enzyme agonists
- A61K2800/782—Enzyme inhibitors; Enzyme antagonists
Definitions
- Composition especially cosmetic, comprising 7-hydroxy DHEA and / or 7-keto DHEA and at least one NO-synthase inhibitor
- the invention relates to a composition
- a composition comprising, in a physiologically acceptable medium: (a) at least one DHEA derivative chosen from 7-hydroxy DHEA and 7-keto DHEA, and (b) at least one NO- inhibitor synthase, as well as its cosmetic and dermatological uses.
- NO-synthase covers a family of enzymes which ensure the enzymatic catalysis of L-arginine into citrulline, during which catalysis is produced a gaseous mediator with multiple functions, nitrogen monoxide or NO. Due to its electronic hyperreactivity linked to the presence of an additional electron in its structure, NO can cause degradation or even destruction of cells, and is therefore particularly involved in intrinsic and / or extrinsic aging of the skin.
- NO is a multifunctional signal molecule active in a wide variety of body systems and tissues. It is notably well accepted that NO plays a preponderant role in the skin.
- NO can indeed be synthesized by all varieties of cells constituting the skin and as such it intervenes in multiple and complex regulatory processes such as the regulation of cell differentiation and / or proliferation, vasodilation, melanogenesis, of the response to environmental variations (homeostasis).
- calcitonin gene related peptide or CGRP calcitonin gene related peptide
- NO in vasodilation makes it associated with skin erythemas, particularly erythemas induced by ultraviolet radiation. NO is also recognized as an intermediary in melanogenesis induced by type B ultraviolet radiation (UVB). Finally, NO seems to be involved in the control of sweating as well as in that of lipolysis (inhibitory effect) or even in hair loss.
- N G- monomethyl-L-arginine NM A
- NAME N 6 -nitro-L-arginine
- NNA N G -nitro-L-arginine
- NAA N G -amino-L-arginine
- ADMA diphenyleneiodonium chloride
- 2- (4-carboxyphenyl) -4,4, 5,5-tetramethylimidazoline-1 -oxy-3-oxide 7-nitroindazole
- N (5) - (1-iminoethyl) -L-ornithine, aminoguanidine canavanine and ebselen.
- NO-synthase inhibitors more suitable for cosmetic application have been described. These are in particular lipochroman-6 (FR 00/05520), grape extract (FR 00/05521), olive tree (FR 00/05522) or gingko biloba (FR 00/05523) or epicatechin (FR 00/05524).
- DHEA dehydroepiandrosterone
- Exogenous DHEA administered topically or orally, is known for its ability to promote keratinization of the epidermis (JP-07 196 467) and to treat dry skin by increasing endogenous production and sebum secretion and by strengthening thus the barrier effect of the skin (US Pat. No. 4,496,556).
- the use of DHEA to remedy atrophy of the dermis by inhibiting the loss of collagen and connective tissue has also been described in patent US Pat. No. 5,843,932.
- 7 ⁇ -hydroxy DHEA is, with 5-androstene 3 ⁇ , 17 ⁇ -diol, a major metabolite of DHEA, obtained by the action of 7 ⁇ -hydroxylase on DHEA.
- minor metabolites of DHEA there may be mentioned 7 ⁇ -hydroxy DHEA, obtained by the action of 7 ⁇ -hydroxylase on DHEA and 7-keto DHEA, which is itself a metabolite of 7 ⁇ -hydroxy DHEA.
- the subject of the invention is therefore a composition
- a composition comprising, in a physiologically acceptable medium: (a) at least one DHEA derivative chosen from 7-hydroxy DHEA and 7-keto DHEA, and (b) at least one NO inhibitor synthase.
- 7-hydroxy DHEA is preferably 7 ⁇ -OH DHEA.
- a process for the preparation of this compound is described in particular in patent applications FR-2 771 105 and WO 94/08588.
- 7 ⁇ -OH DHEA is also suitable for use in the present invention.
- the concentration of DHEA derivative in the composition according to the invention is advantageously between 0.0001% and 10% by weight, preferably between 0.001% and 5% by weight, relative to the total weight of the composition.
- the NO-synthase inhibitor is chosen from the compounds inhibiting the synthesis and / or accelerating the catabolism of NO-synthase, the compounds neutralizing NO-synthase or the compounds intervening by modulating the signal transduced by NO synthase.
- NO-synthase inhibitors are products which make it possible, in situ on humans, to partially or even completely inhibit the synthesis of nitrogen monoxide (NO).
- NO-synthases exist in three forms, namely two constitutive forms grouping together neuronal NO-synthase (or NOS 1) and endothelial NO-synthase (or NOS 3), and an inducible form (or NOS 2) (Medicine / Sciences , 1992, 8, pp. 843-845).
- NOS 1 neuronal NO-synthase
- NOS 3 endothelial NO-synthase
- NOS 2 an inducible form
- the NO synthase inhibitor can be chosen from: N-monomethyl-L-arginine (NMMA), N G -nitro-L-arginine; the methyl ester of N G -nitro-L-arginine; diphenyleneiodonium chloride; 7-nitroindazole; N (5) - (1-iminoethyl) -L-ornithine, NG, NG-dimethyl-L-arginine; NG.NG-dimethyl-arginine; 2- (4-carboxyphenyl) -4,4,5,5-tetramethylimidazoline-1-oxy-3-oxide; aminoguanidine; canavanine and ebselen.
- NMMA N-monomethyl-L-arginine
- NMMA N G -nitro-L-arginine
- diphenyleneiodonium chloride 7-nitroindazole
- the NO-synthase inhibitor according to the invention can be chosen from: lipochroman-6, an extract of grape, olive or gingko biloba or epicatechin.
- Lipochroman-6 is a compound corresponding to the general formula:
- grape extract is meant a plant extract of the species Vitis vinifera which is in particular marketed by the company Euromed under the name Leucocyanidines of extra grapes, or by the company Indena under the name Leucoselect ® , or finally by the company Hansen under the name Extract of grape marc.
- “olive extract” means a plant extract of the species Olea europaea which is preferably obtained from olive leaves. This extract is in particular marketed by the company VINYALS in the form of dry extract, or by the company Biologia & Technologia under the trade name Eurol BT.
- extract of Gingko biloba means an extract of a plant of the species Gingko biloba.
- a dry aqueous extract of this plant is used, sold by the company Beaufour under the trade name Ginkgo biloba standard extract.
- Epichatechin or 2- [3,4-dihydroxyphenyl] -3,4-dihydro-1 [2H] ⁇ benzopyran-3, 5, 7-triol is a natural component of green tea. It can be in the form of two enantiomers, namely: (+) - epichatechin or [2S, 3S] -2- [3,4-dihydroxyphenyl] -3,4-dihydro-1 [2H] - benzopyran-3 , 5, 7-triol; and (-) - epichatechin or [2S, 3S] -2- [3,4-dihydroxyphenyl] -3,4- dihydro-1 [2H] -benzopyran-3, 5, 7-triol.
- each of these compounds can be used alone.
- the invention also relates to the use of a mixture in any proportion of (+) - epichatechin and (-) - epichatechin.
- the invention also relates to analogs of epichatechin and / or its derivatives with the exception of epichatechin-gallate.
- epicatechin is understood, unless otherwise indicated, as meaning the (+) epichatechin or (-) epichatechin or a mixture in any proportion of (+) - epichatechin and (- ) -epichatechin, as well as analogues of epichatechin and / or its derivatives with the exception of epichatechin-gallate.
- the composition according to the invention can be adapted for topical application to the skin.
- the DHEA derivatives can be present in an amount ranging from 0.0001 to 10% by weight, and preferably from 0.001 to 5% by weight, relative to the total weight of the composition. More preferably, the DHEA derivatives can be present in an amount of about 1% by weight, relative to the total weight of the composition.
- the NO synthase inhibitor can, for its part, represent from 0.001 to 1% of the total weight of the composition.
- composition according to the invention can be in all dosage forms suitable for topical application, normally used in the cosmetic and dermatological fields, and it can in particular be in the form of an optionally gelled aqueous solution, of a dispersion of the type optionally two-phase lotion, of an emulsion obtained by dispersion of a fatty phase in an aqueous phase (O / W) or vice versa (W / O) or of a triple emulsion (W / O / W or O / W).
- These compositions are prepared according to the usual methods.
- This composition can be more or less fluid and have the appearance of a white or colored cream, an ointment, a milk, a lotion, a serum, a paste, a foam. . It can optionally be applied to the skin in the form of an aerosol. It can also be in solid form, in particular in the form of a stick. It can be used as a care product and / or as a make-up product for the skin.
- the composition of the invention can also contain the adjuvants usual in the cosmetic field, such as hydrophilic or lipophilic gelling agents, hydrophilic or lipophilic active agents, preservatives, antioxidants, solvents, perfumes, fillers, filters, pigments, odor absorbers and coloring matters.
- the amounts of these various adjuvants are those conventionally used in the field under consideration, and for example from 0.01 to 20% of the total weight of the composition.
- These adjuvants depending on their nature, can be introduced into the fatty phase or into the aqueous phase. In any event, these adjuvants, as well as their proportions, will be chosen so as not to harm the desired properties of the combination of active agents according to the invention.
- the proportion of the fatty phase can range from 5 to 80% by weight, and preferably from 5 to 50% by weight relative to the total weight of the composition.
- the oils, emulsifiers and coemulsifiers used in the composition in the form of an emulsion are chosen from those conventionally used in the field under consideration.
- the emulsifier and the coemulsifier are present in the composition in a proportion ranging from 0.3 to 30% by weight, and preferably from 0.5 to 20% by weight relative to the total weight of the composition.
- oils which can be used in the invention mention may be made of mineral oils (petrolatum oil), oils of vegetable origin (avocado oil, soybean oil), oils of animal origin (lanolin), oils of synthesis (perhydrosqualene), silicone oils (cyclomethicone) and fluorinated oils (perfluoropolyethers).
- mineral oils mineral oils
- oils of vegetable origin oils of vegetable origin
- lanolin oils of animal origin
- oils of synthesis oils of synthesis
- silicone oils cyclomethicone
- fluorinated oils perfluoropolyethers
- Fatty alcohols cetyl alcohol
- fatty acids fatty acids
- waxes camauba wax, ozokerite
- emulsifiers and coemulsifiers which can be used in the invention, there may be mentioned, for example, fatty acid esters of polyethylene glycol such as PEG-20 stearate, and fatty acid and glycerin esters such as glyceryl stearate .
- hydrophilic gelling agents mention may in particular be made of carboxyvinyl polymers (carbomers), acrylic copolymers such as acrylate / alkyl acrylate copolymers, polyacrylamides, polysaccharides, natural gums and clays, and, as lipophilic gelling agents, cite modified clays such as bentones, metal salts of fatty acids, hydrophobic silica and polyethylenes.
- carboxyvinyl polymers carboxyvinyl polymers
- acrylic copolymers such as acrylate / alkyl acrylate copolymers
- polyacrylamides polysaccharides
- natural gums and clays and, as lipophilic gelling agents, cite modified clays such as bentones, metal salts of fatty acids, hydrophobic silica and polyethylenes.
- composition according to the invention may comprise other anti-aging active agents, in particular anti-wrinkle active agents acting by tightening effect, anti-free radical agents or also compounds acting on the firmness of the skin by inhibiting elastase or increasing the synthesis of collagen.
- anti-aging active agents in particular anti-wrinkle active agents acting by tightening effect, anti-free radical agents or also compounds acting on the firmness of the skin by inhibiting elastase or increasing the synthesis of collagen.
- the composition according to the invention can be adapted for oral administration.
- the DHEA derivative can be administered at a rate of 1 to 100 mg / day, preferably 25 to 75 mg / day and the inhibitor of NO synthase can be administered at a rate of 1 to 100 mg / day. , preferably 25 to 75 mg / day.
- composition can be in any dosage form suitable for this mode of administration, for example in the form of breakable tablets or not, granules, capsules, capsules, solutes, suspensions or solutions comprising an appropriate excipient.
- the composition according to the invention comprises an effective amount of DHEA derivative and an effective amount of NO synthase inhibitor, sufficient to obtain the desired effect, in a physiologically acceptable medium.
- composition according to the invention can be used for cosmetic purposes, to prevent and / or treat irritation of the skin and / or sensitive skin and / or signs of skin aging, especially photo-aging.
- skin irritation means any form of irritation resulting for example from the application to the skin of chemicals of natural or synthetic origin, and which can result, in particular, in redness, pain or tingling, or even resulting from exposure to ultraviolet radiation.
- sensitive skin covers both irritable and / or reactive skin and intolerant skin.
- Irritable and / or reactive skin is skin that reacts with pruritus, that is, itching or tingling, to various factors such as the environment, emotions, food, wind, friction, razor, soap, surfactants, hard water with high concentration of limestone, temperature variations or wool.
- these signs are associated with dry skin with or without sores or with skin that has an erythema.
- Intolerant skin is skin that reacts with sensations of heating, tightness, tingling and / or redness, to various factors such as the environment, emotions, food and certain cosmetic products. In general, these signs are associated with hyperseborrheic or acne-prone skin with or without sores and erythema>
- signals of skin aging is meant all modifications of the external appearance of the skin due to aging whether it is chronic or otog / and / or photo-induced, as for example wrinkles and fine lines, or lack of elasticity and / or skin tone.
- the present invention therefore also relates to a cosmetic method for preventing and / or treating irritation of the skin and / or sensitive skin and / or signs of skin aging, comprising the topical or oral administration of a composition comprising a DHEA derivative according to the invention, in combination with at least one NO-synthase inhibitor.
- Soft capsules are prepared, conventionally for those skilled in the art, having the following composition:
- Example 2 Composition for topical application
- a treatment cream having the following composition is prepared, conventionally for a person skilled in the art: Dry aqueous extract of Ginkgo biloba sold by the company Beaufour under the trade name "Ginkgo biloba standard extract” 5%
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- Public Health (AREA)
- General Health & Medical Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Epidemiology (AREA)
- Birds (AREA)
- Engineering & Computer Science (AREA)
- Biotechnology (AREA)
- Mycology (AREA)
- Microbiology (AREA)
- Botany (AREA)
- Dermatology (AREA)
- Natural Medicines & Medicinal Plants (AREA)
- Gerontology & Geriatric Medicine (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Pharmacology & Pharmacy (AREA)
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- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
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Abstract
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2002219286A AU2002219286A1 (en) | 2000-12-15 | 2001-12-11 | Composition, in particular cosmetic, comprising 7-hydroxy dhea or 7-keto dhea and at least a no-synthase inhibitor |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR00/16438 | 2000-12-15 | ||
| FR0016438A FR2818136B1 (fr) | 2000-12-15 | 2000-12-15 | Composition, notamment cosmetique, comprenant la 7-hydroxy dhea et/ou la 7-ceto dhea et au moins un inhibiteur de no-synthase |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2002047655A1 true WO2002047655A1 (fr) | 2002-06-20 |
Family
ID=8857753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/FR2001/003946 WO2002047655A1 (fr) | 2000-12-15 | 2001-12-11 | Composition, notamment cosmetique, comprenant la 7-hydroxy dhea et/ou la 7-ceto dhea et au moins un inhibiteur de no-synthase |
Country Status (3)
| Country | Link |
|---|---|
| AU (1) | AU2002219286A1 (fr) |
| FR (1) | FR2818136B1 (fr) |
| WO (1) | WO2002047655A1 (fr) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USRE46228E1 (en) | 2007-06-15 | 2016-12-06 | Lipotec, S.A. | Pigmentation-regulating compounds |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5102434B2 (ja) * | 2002-09-09 | 2012-12-19 | ネステク ソシエテ アノニム | 皮膚品質を改良するための経口投与可能な組成物 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997003676A1 (fr) * | 1995-07-21 | 1997-02-06 | Cabo Soler Jose | Nouvelle formulation pharmaceutique de dehydroepiandrosterone pour application topique percutanee |
| FR2740339A1 (fr) * | 1995-10-26 | 1997-04-30 | Oreal | Utilisation d'au moins un inhibiteur de no-synthase dans le traitement des peaux sensibles |
| WO1999007381A1 (fr) * | 1997-08-11 | 1999-02-18 | Weider Nutrition International, Inc. | Compositions et traitements permettant de reduire les effets secondaires lies a l'administration des precurseurs de la testosterone androgenique |
| FR2771105A1 (fr) * | 1997-11-20 | 1999-05-21 | Vitasterol | Utilisation du fusarium monoliforme pour la preparation des derives 7alpha-hydroxyles de la dehydroepiandrosterone et de la pregnenolone |
-
2000
- 2000-12-15 FR FR0016438A patent/FR2818136B1/fr not_active Expired - Fee Related
-
2001
- 2001-12-11 AU AU2002219286A patent/AU2002219286A1/en not_active Abandoned
- 2001-12-11 WO PCT/FR2001/003946 patent/WO2002047655A1/fr not_active Application Discontinuation
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997003676A1 (fr) * | 1995-07-21 | 1997-02-06 | Cabo Soler Jose | Nouvelle formulation pharmaceutique de dehydroepiandrosterone pour application topique percutanee |
| FR2740339A1 (fr) * | 1995-10-26 | 1997-04-30 | Oreal | Utilisation d'au moins un inhibiteur de no-synthase dans le traitement des peaux sensibles |
| WO1999007381A1 (fr) * | 1997-08-11 | 1999-02-18 | Weider Nutrition International, Inc. | Compositions et traitements permettant de reduire les effets secondaires lies a l'administration des precurseurs de la testosterone androgenique |
| FR2771105A1 (fr) * | 1997-11-20 | 1999-05-21 | Vitasterol | Utilisation du fusarium monoliforme pour la preparation des derives 7alpha-hydroxyles de la dehydroepiandrosterone et de la pregnenolone |
Non-Patent Citations (1)
| Title |
|---|
| DATABASE WPI Derwent World Patents Index; AN 1997-145203 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USRE46228E1 (en) | 2007-06-15 | 2016-12-06 | Lipotec, S.A. | Pigmentation-regulating compounds |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2818136A1 (fr) | 2002-06-21 |
| FR2818136B1 (fr) | 2004-10-15 |
| AU2002219286A1 (en) | 2002-06-24 |
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