WO2015119115A1 - 赤血球沈降防止剤 - Google Patents
赤血球沈降防止剤 Download PDFInfo
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- WO2015119115A1 WO2015119115A1 PCT/JP2015/052988 JP2015052988W WO2015119115A1 WO 2015119115 A1 WO2015119115 A1 WO 2015119115A1 JP 2015052988 W JP2015052988 W JP 2015052988W WO 2015119115 A1 WO2015119115 A1 WO 2015119115A1
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- erythrocyte sedimentation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
- G01N33/483—Physical analysis of biological material
- G01N33/487—Physical analysis of biological material of liquid biological material
- G01N33/49—Blood
- G01N33/491—Blood by separating the blood components
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
- G01N33/50—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
- G01N33/80—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving blood groups or blood types or red blood cells
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
- G01N33/50—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
- G01N33/86—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving blood coagulating time or factors, or their receptors
Definitions
- the present invention relates to an erythrocyte sedimentation inhibitor useful in blood property tests such as thrombus formation ability and platelet function measurement.
- Erythrocyte sedimentation (blood sedimentation) is caused by an increase in basic protein, ⁇ globulin and ⁇ 2 macroglobulin due to inflammation or a decrease in acidic protein (mainly albumin), resulting in a weakening of repulsion of erythrocytes or a decrease in erythrocytes due to anemia.
- the measurement of the erythrocyte sedimentation rate is also used for the examination of diseases. Measurement of erythrocyte sedimentation rate is achieved by storing blood in a blood sedimentation tube placed vertically and measuring erythrocyte sedimentation per fixed time (30 minutes to 2 hours) (Japanese standard value is 1 to 15 mm / 1 hour). . It is also known that red blood cell sedimentation in healthy blood samples is promoted by red blood cells rolling on the wall or bottom of the container when the blood container is tilted.
- Patent Documents 1 and 2 methods for measuring blood clot formation ability and platelet function using blood collected are known (Patent Documents 1 and 2), but blood collected over a long period of time (10 to 30 minutes). The degree of hematocrit of the blood sample at the bottom of the container becomes high and the measurement result cannot be obtained accurately if the blood under measurement causes separation of red blood cells and plasma components due to erythrocyte sedimentation before the test.
- DIDS 4,4'-diisothiocyanatostilbene-2,2'-disulfonic acid
- DNDS Disodium 4,4'-dinitrostilbene-2,2'-disulfonate
- ion transport inhibitors such as DIDS and DNDS suppress erythrocyte sedimentation without affecting thrombus formation ability or platelet function
- the present invention provides the following.
- An erythrocyte sedimentation inhibitor comprising an erythrocyte membrane ion transport inhibitor.
- the band 3 immobilizing agent is 4,4′-diisothiocyanatostilbene-2,2′-disulfonic acid (DIDS) or disodium 4,4′-dinitrostilbene-2,2′-disulfonate (DNDS)
- DIDS 4,4′-diisothiocyanatostilbene-2,2′-disulfonic acid
- DNDS disodium 4,4′-dinitrostilbene-2,2′-disulfonate
- the erythrocyte sedimentation inhibitor according to (3) wherein DNDS is added to blood so that the final concentration is 0.02 mg / ml or more.
- a method for examining blood properties comprising examining blood properties using blood treated with the erythrocyte sedimentation inhibitor according to any one of (1) to (5).
- the blood property test method according to (6) which is a measurement of thrombus formation ability or platelet function.
- the influence of blood sedimentation can be prevented in blood property tests such as thrombus formation and platelet function measurement, and accurate measurement data can be obtained.
- a photograph showing the state of blood sedimentation in a glass tube (A added with no DIDS, B added with 0.15 mg / ml DIDS, and C added with 1.5 mg / ml DIDS).
- a photograph showing the state of blood sedimentation in a blood container for thrombus formation measurement (A is DIDS not added, B is 0.15 mg / ml DIDS added, C is 1.5 mg / ml DIDS added).
- a photograph showing the state of blood sedimentation in a glass tube (A added with no DNDS, B added with 0.02 mg / ml DNDS, C added with 0.1 mg / ml DNDS, D added with 0.2 mg / ml DNDS).
- a photograph showing the state of blood precipitation in a glass tube (A added with no DNDS, B added with 0.5 mg / ml DNDS, C added with 1 mg / ml DNDS).
- the graph which shows the pressure pattern when the blood sample is perfused.
- A shows no DIDS addition
- B shows DIDS (1.5 mg / ml) addition
- C shows DNDS (0.3 mg / ml) addition.
- the erythrocyte sedimentation inhibitor of the present invention contains an erythrocyte membrane ion (such as chloride ion) transport inhibitor.
- the ion transport inhibitor of erythrocyte membrane include band 3 fixing agent.
- band 3 also referred to as AE1 is a membrane transport protein present in the cell membrane (red blood cell membrane) of erythrocytes, and detects carbon dioxide dissolved in the blood and promotes oxygen release from hemoglobin in the erythrocytes.
- AE1 also referred to as AE1
- AE1 is a membrane transport protein present in the cell membrane (red blood cell membrane) of erythrocytes, and detects carbon dioxide dissolved in the blood and promotes oxygen release from hemoglobin in the erythrocytes.
- the band 3 fixing agent is not particularly limited as long as it binds to band 3 and inhibits band 3 ion transport, but DIDS and DNDS are preferred.
- DIDS is preferably added to blood so that the final concentration is 0.15 mg / ml or more, more preferably added to blood so that the final concentration is 0.50 mg / ml or more, and the final concentration is 1.00 mg / ml. More preferably, it is added to blood so that it becomes the above.
- DNDS is preferably added to blood so that the final concentration is 0.02 mg / ml or more, more preferably added to blood so that the final concentration is 0.10 mg / ml or more, and the final concentration is 0.20 mg / ml. More preferably, it is added to blood so that it becomes the above.
- the upper limit of the concentration is not particularly limited as long as it does not inhibit the test using blood, but is, for example, 100.00 mg / ml or less.
- an ion transport inhibitor of erythrocyte membrane such as DIDS or DNDS is once suspended or dissolved in water or physiological saline and then added to blood.
- the blood is preferably whole blood that has been anticoagulated.
- DNDS is water-soluble, and DNDS aqueous solution is suitable as a reagent to be added to blood.
- anticoagulants such as citric acid, hirudin, trypsin inhibitor and calcium. Is possible.
- the timing of adding an erythrocyte membrane ion transport inhibitor such as DIDS to blood may be immediately after blood collection or immediately before measurement.
- Blood treated with erythrocyte membrane ion transport inhibitors such as DIDS and DNDS does not affect thrombogenicity and platelet function, and suppresses erythrocyte sedimentation. It can be used for blood property tests. In particular, it is effective in suppressing erythrocyte sedimentation of a blood sample in a test including a process of leaving blood in a stationary state for a certain period of time (about 10 minutes to 1 hour).
- a method of flowing blood through a channel formed in a microchip and analyzing thrombus formation in the channel is exemplified.
- a blood sample placed in a blood container is perfused for a certain period (10 to 30 minutes) through a microchip channel coated with collagen or a mixture of collagen and tissue factor.
- the blood sample can be analyzed for thrombus formation ability, platelet activation ability, and the like.
- Example 1 DIDS (Tokyo Kasei) was added to physiological saline at concentrations of 0.15 mg / ml and 1.5 mg / ml, respectively, and added to the blood anti-coagulated with sodium citrate at a final concentration of 5%. After mixing, the mixture was added to a glass tube having a diameter of 6 mm (FIG. 1) and a blood container for measuring thrombus formation (FIG. 2), and allowed to stand. As a result, after 30 minutes, the 0.15 mg / ml solution slightly suppressed blood sedimentation, and in the case of 1.5 mg / ml, a glass tube or a container with a slanted bottom (blood container for measuring thrombus formation) was used. Even so, blood sedimentation was completely suppressed.
- a glass tube or a container with a slanted bottom blood container for measuring thrombus formation
- DNDS Tokyo Kasei
- DNDS Tokyo Kasei
- physiological saline 0.5 mg / ml and 1.0 mg / ml
- blood anticoagulated with sodium citrate at a final concentration of 5%.
- the mixture was added to a glass tube having a diameter of 6 mm and allowed to stand at an angle of 30 degrees. (Fig. 4)
- Fig. 4 As a result, after 30 minutes, blood precipitation was suppressed in the 0.5 mg / ml and 1.0 mg / ml solutions compared to the control.
- Example 2 An apparatus as described in FIG. 12 of Patent Document 1 was used.
- Type I collagen manufactured by Nitta Gelatin Co., Ltd.
- tissue thromboplastin manufactured by Sysmex Corporation
- CTI corn trypsin inhibitor
- calcium chloride final concentration 12 mM
- DIDS final concentration 0 or 1.5 mg / ml
- DNDS final concentration 0.3
- FIG. 5 is a graph showing a pressure pattern when a blood sample is perfused.
- the pressure reflects the formation of a thrombus composed of fibrin and activated platelets, and comprehensively reflects blood coagulation ability and platelet function.
- A shows the pressure change in the case of control blood to which DIDS is not added.
- B shows the blood sample to which DIDS (1.5 mg / ml) was added, and C shows the change in pressure when the blood to which DNDS (0.3 mg / ml) was added was perfused. It can be seen that the addition of DIDS and DNDS strongly suppresses blood sedimentation, but does not affect thrombus formation that comprehensively reflects platelets and blood coagulation.
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Abstract
Description
赤血球沈降速度の測定は垂直に静置した血沈管内に血液を収容し、一定時間(30分~2時間)あたりの赤血球の沈降を測定する(日本人の基準値は1~15mm/1時間)。また、健常な血液検体においても赤血球の沈降は、血液容器が傾斜した場合に容器の壁又は底を赤血球が転がることで、血沈が促進されることが知られている。
(1)赤血球膜のイオン輸送阻害剤を含む、赤血球沈降防止剤。
(2)前記イオン輸送阻害剤がバンド3固定化剤である、(1)に記載の赤血球沈降防止剤。
(3)バンド3固定化剤が4,4'-diisothiocyanatostilbene-2,2'-disulfonic acid(DIDS)またはDisodium 4,4'-Dinitrostilbene-2,2'-disulfonate(DNDS)である、(2)に記載の赤血球沈降防止剤。
(4)終濃度0.15mg/ml以上となるようにDIDSが血液に添加される、(3)に記載の赤血球沈降防止剤。
(5)終濃度0.02mg/ml以上となるようにDNDSが血液に添加される、(3)に記載の赤血球沈降防止剤。
(6)(1)~(5)のいずれかに記載の赤血球沈降防止剤を用いて処理された血液を使用して血液性状を検査することを特徴とする、血液性状の検査方法。
(7)血栓形成能または血小板機能の測定である、(6)に記載の血液性状の検査方法。
ここで、バンド3(AE1とも呼ばれる)は、赤血球の細胞膜(赤血球膜)に多く存在する膜輸送タンパク質で、血液に溶け込んだ二酸化炭素を検知して、赤血球内にあるヘモグロビンからの酸素放出を促すことが知られている(Leg Med (Tokyo). 2005 Jul;7(4):270-3.Molecular aspects of Rh antigens.)。この働きはイオン交換輸送機構によるもので、代謝が活発な組織に重点的に酸素を放出して、酸素を過不足なく供給することを可能にしている。
DNDSは、終濃度0.02 mg/ml以上となるように血液に添加されることが好ましく、終濃度0.10mg/ml以上となるように血液に添加されることがより好ましく、終濃度0.20mg/ml以上となるように血液に添加されることがさらに好ましい。
濃度の上限は、血液を用いた検査を阻害しない濃度であれば特に制限はないが、例えば、100.00mg/ml以下である。
血液は、抗凝固処理されている全血が好ましい。
DNDSは水溶性で有り、血液に加えられる試薬としては、DNDS水溶液は適しており、例えばクエン酸、ヒルジン、トリプシンインヒビターなどの抗凝固剤やカルシウムなどの試薬とDNDSの混合水溶液を作成する事が可能である。
DIDS(東京化成)を生理食塩水にそれぞれ、0.15mg/ml, 1.5mg/mlの濃度で添加した溶液を、クエン酸ナトリウムで抗凝固処理した血液に対し、5%の終濃度で添加して混和した後、直径6mmのガラス管(図1)および血栓形成測定用の血液容器(図2)に加え、静置した。
その結果、30分後、0.15mg/mlの溶液では、やや血沈が抑制され、1.5mg/mlの場合には、ガラス管や底が傾斜している容器(血栓形成測定用の血液容器)であっても血沈は完全に抑制された。
その結果、30分後、0.02mg/ml および0.1mg/mlの溶液は、コントロールに比べ血沈が抑制されていた。また、0.2mg/mlの溶液では、ほとんど血沈は抑制された。
その結果、30分後、0.5mg/mlおよび1.0mg/mlの溶液は、コントロールに比べ血沈が抑制されていた。
特許文献1の図12に記載されたような装置を用いた。
マイクロチップ上に形成された幅300μm、深さ80μm、長さ1.5cmのキャピラリーに、タイプIコラーゲン(新田ゼラチン株式会社製)及び組織トロンボプラスチン(シスメックス株式会社製)をコートした。そして、キャピラリーに、血液容器に入れられたCTI(コーントリプシンインヒビター)(終濃度50μg/ml)と塩化カルシウム(終濃度12mM)とDIDS(終濃度0又は1.5mg/ml)またはDNDS(終濃度0.3mg/ml)を添加したクエン酸血液を、30分間、10μl/minの流速でかん流し、フィブリンと血小板よりなる血栓形成によって引き起こされる圧力変化を連続的に測定した。
Claims (9)
- 赤血球膜のイオン輸送阻害剤を含む、赤血球沈降防止剤。
- 前記イオン輸送阻害剤がバンド3固定化剤である、請求項1に記載の赤血球沈降防止剤。
- バンド3固定化剤がdisodium 4,4'-dinitrostilbene-2,2'-disulfonate(DNDS)である、請求項2に記載の赤血球沈降防止剤。
- DNDSが終濃度 0.02mg/ml以上となるように血液に添加される、請求項3に記載の赤血球沈降防止剤。
- バンド3固定化剤が4,4'-diisothiocyanatostilbene-2,2'-disulfonic acid(DIDS)である、請求項2に記載の赤血球沈降防止剤。
- DIDSが終濃度0.15mg/ml以上となるように血液に添加される、請求項5に記載の赤血球沈降防止剤。
- 請求項1~6のいずれか一項に記載の赤血球沈降防止剤を用いて処理された血液を使用して血液性状を検査することを特徴とする、血液性状の検査方法。
- 血栓形成能または血小板機能の測定である、請求項7に記載の血液性状の検査方法。
- 赤血球膜のイオン輸送阻害剤を単離された血液に添加する工程を含む、赤血球沈降防止方法。
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP15746241.7A EP3104178A4 (en) | 2014-02-06 | 2015-02-03 | Erythrocyte sedimentation inhibitor |
| JP2015560988A JP6693644B2 (ja) | 2014-02-06 | 2015-02-03 | 赤血球沈降防止剤 |
| US15/116,305 US10788502B2 (en) | 2014-02-06 | 2015-02-03 | Erythrocyte sedimentation inhibitor |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014021359 | 2014-02-06 | ||
| JP2014-021359 | 2014-02-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2015119115A1 true WO2015119115A1 (ja) | 2015-08-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| PCT/JP2015/052988 Ceased WO2015119115A1 (ja) | 2014-02-06 | 2015-02-03 | 赤血球沈降防止剤 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US10788502B2 (ja) |
| EP (1) | EP3104178A4 (ja) |
| JP (1) | JP6693644B2 (ja) |
| WO (1) | WO2015119115A1 (ja) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016158148A1 (ja) * | 2015-03-31 | 2016-10-06 | ソニー株式会社 | 電気的測定方法、電気的測定装置、及び血液状態解析システム |
| EP4242628A3 (en) * | 2015-12-08 | 2023-11-08 | Biomatrica, INC. | Reduction of erythrocyte sedimentation rate |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004529076A (ja) * | 2000-12-05 | 2004-09-24 | ハーベスト・テクノロジーズ・コーポレイション | 赤血球の沈殿方法 |
| WO2005072773A1 (ja) * | 2004-01-29 | 2005-08-11 | Keio University | 赤血球機能修飾物質 |
| WO2007046450A1 (ja) * | 2005-10-18 | 2007-04-26 | Fujimori Kogyo Co., Ltd. | 血栓観測装置および血栓観測方法 |
| WO2010018833A1 (ja) * | 2008-08-11 | 2010-02-18 | 藤森工業株式会社 | 血小板検査方法及び血小板検査装置 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6004819A (en) * | 1996-11-04 | 1999-12-21 | Xylum Corporation | Blood testing device |
-
2015
- 2015-02-03 US US15/116,305 patent/US10788502B2/en active Active
- 2015-02-03 EP EP15746241.7A patent/EP3104178A4/en not_active Withdrawn
- 2015-02-03 WO PCT/JP2015/052988 patent/WO2015119115A1/ja not_active Ceased
- 2015-02-03 JP JP2015560988A patent/JP6693644B2/ja active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004529076A (ja) * | 2000-12-05 | 2004-09-24 | ハーベスト・テクノロジーズ・コーポレイション | 赤血球の沈殿方法 |
| WO2005072773A1 (ja) * | 2004-01-29 | 2005-08-11 | Keio University | 赤血球機能修飾物質 |
| WO2007046450A1 (ja) * | 2005-10-18 | 2007-04-26 | Fujimori Kogyo Co., Ltd. | 血栓観測装置および血栓観測方法 |
| WO2010018833A1 (ja) * | 2008-08-11 | 2010-02-18 | 藤森工業株式会社 | 血小板検査方法及び血小板検査装置 |
Non-Patent Citations (2)
| Title |
|---|
| NAOTAKA HAMASAKI: "Hito Sekkekkyumaku no In Ion Toka Kiko -Band3 Tanpakushitsu no Kozo to Kino", PROTEIN, NUCLEIC ACID AND ENZYME, vol. 31, no. 8, 1986, pages 668 - 680, XP008184511 * |
| See also references of EP3104178A4 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016158148A1 (ja) * | 2015-03-31 | 2016-10-06 | ソニー株式会社 | 電気的測定方法、電気的測定装置、及び血液状態解析システム |
| US10816493B2 (en) | 2015-03-31 | 2020-10-27 | Sony Corporation | Electrical measurement method, electrical measurement device, and blood condition analysis system |
| EP4242628A3 (en) * | 2015-12-08 | 2023-11-08 | Biomatrica, INC. | Reduction of erythrocyte sedimentation rate |
| US12089588B2 (en) | 2015-12-08 | 2024-09-17 | Biomatrica, Inc. | Reduction of erythrocyte sedimentation rate |
Also Published As
| Publication number | Publication date |
|---|---|
| EP3104178A1 (en) | 2016-12-14 |
| JP6693644B2 (ja) | 2020-05-13 |
| US20170010289A1 (en) | 2017-01-12 |
| JPWO2015119115A1 (ja) | 2017-03-23 |
| EP3104178A4 (en) | 2017-11-01 |
| US10788502B2 (en) | 2020-09-29 |
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