JP5628409B2 - 試験液の凝固特性を測定するための組成物 - Google Patents
試験液の凝固特性を測定するための組成物 Download PDFInfo
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- JP5628409B2 JP5628409B2 JP2013501640A JP2013501640A JP5628409B2 JP 5628409 B2 JP5628409 B2 JP 5628409B2 JP 2013501640 A JP2013501640 A JP 2013501640A JP 2013501640 A JP2013501640 A JP 2013501640A JP 5628409 B2 JP5628409 B2 JP 5628409B2
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12Q—MEASURING OR TESTING PROCESSES INVOLVING ENZYMES, NUCLEIC ACIDS OR MICROORGANISMS; COMPOSITIONS OR TEST PAPERS THEREFOR; PROCESSES OF PREPARING SUCH COMPOSITIONS; CONDITION-RESPONSIVE CONTROL IN MICROBIOLOGICAL OR ENZYMOLOGICAL PROCESSES
- C12Q1/00—Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions
- C12Q1/56—Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions involving blood clotting factors, e.g. involving thrombin, thromboplastin, fibrinogen
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- G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
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- G01N33/487—Physical analysis of biological material of liquid biological material
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- 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
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- G01N2333/00—Assays involving biological materials from specific organisms or of a specific nature
- G01N2333/435—Assays involving biological materials from specific organisms or of a specific nature from animals; from humans
- G01N2333/745—Assays involving non-enzymic blood coagulation factors
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- Chemical & Material Sciences (AREA)
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Description
formation time) CFT),凝血塊の堅さ(振幅A5〜A30及び最大凝血塊堅さMCF),又は線溶の程度(最大溶解ML)がある。
・カルシウム(CaCl2): カルシウムは,サンプルを再カルシウム化するために加えられる。血液サンプルは,ヘパリン,EDTA,クエン酸塩等のような,数種の異なる抗凝固物質によって凝血塊形成が阻止できる。典型的には,種々の機能試験は,クエン酸塩で抗凝固処理した血液で行われている。クエン酸塩は,血液サンプル中のカルシウムと中程度に錯体形成する。カルシウムは凝固プロセスに必要であり,複合体形成に関与し,且つ殆どの凝固因子(例えば,FI, FII, FV, FVII, FVIII, FIX, FX, FXI, FXIII, TF)にとっての補因子である。従って,サンプルが採血に際して(クエン酸塩含有採血管を用いることで)クエン酸塩処理されている場合には,サンプルの再カルシウム化は,サンプルが正しく凝固するのを保証する上で必要である。
Thrombelastography, The Internet Journal of Anesthesiology, 2000, Volume 1
Number 3; (http://www.ispub.com/ostia/index.php?xmlFilePath=journals/ija/ vol1n3/teg.xml);
Ruttmann et al.: Hemodilution Enhanced Coagulation Is
Not Due to Platelet Clumping, Anesthesiology 2004; 101: A150; Recombiplastin-
and ReoPro-modified TEG:http://www.transfusionguidelines.org.uk/
docs/pdfs/bbt_app-use_teg-sop-example.pdf; TF- and
Trasylol-modified TEG: Tanaka et al.: Evaluation of a
novel kallikrein inhibitor on hemostatic activation in vitro, Thrombosis
Research, Volume 113, Issue 5 , 2004, Pages 333-339)。これは,低い安定性,多くピペッティング操作,及び多くの過誤原因に繋がる。
・測定に際してサンプルの液量を受ける1つのカップに,それらを直接入れて乾燥させる。
・作業濃度における試薬の安定な液状の組み合わせを組成する。
好ましい具体化的態様が,従属請求項において提示されている。
a)凝固の活性化剤の少なくとも1種;及び次のものから選ばれる成分の少なくとも1種
b)試験液の再カルシウムを保証するのに十分な量の化カルシウム塩,好ましくはCaCl2;及び/又は
c)阻害剤及び/又は他の凝固成分又は因子の少なくとも1種;
を含んでなり,
各成分が本質的に乾燥形態で且つ特定の試験液の粘弾性分析の1回を行うに十分な量で存在しており,そして
それらの成分が物質の混合物に形態ではなく,空間的に分離された形態で存在していることを特徴とする,診断用組成物を提供する。
・外因性活性化: 外因性活性化剤及び安定化剤,及び所望によりCaCl2,の組み合わせ
・内因性活性化: 内因性活性化剤及び安定化剤,及び所望によりCaCl2,の組み合わせ
・ヘパリンに非感受性の外因性活性化: 外因性活性化剤,ヘパリン阻害剤,及び安定化剤,及び所望によりCaCl2,の組み合わせ
・ヘパリンに非感受性の内因性活性化: 内因性活性化剤,ヘパリン阻害剤及び安定化剤,及び所望によりCaCl2,の組み合わせ。
・血小板活性化を伴わない外因性活性化: 外因性活性化剤,血小板阻害剤,安定化剤,及び所望によりCaCl2,の組み合わせ。
・血小板活性化を伴わずヘパリンに非感受性の外因性活性化:外因性活性化剤,血小板阻害剤,ヘパリン阻害剤及び安定化剤及び,所望によりCaCl2,の組み合わせ。
・血小板活性化を伴わない内因性活性化: 内因性活性化剤,血小板阻害剤及び安定化剤,及び所望によりCaCl2,の組み合わせ。
・血小板活性化を伴わずヘパリンに非感受性の内因性活性化: 内因性活性化剤,血小板阻害剤,ヘパリン阻害剤及び安定化剤,及び所望によりCaCl2,の組み合わせ。
・線溶の阻害を伴う外因性活性化: 外因性活性化剤,線溶阻害剤及び安定化剤,及び所望によりCaCl2,の組み合わせ。
・線溶の阻害を伴いヘパリンに非感受性の外因性活性化: 外因性活性化剤,線溶阻害剤,ヘパリン阻害剤及び安定化剤及び,所望によりCaCl2,の組み合わせ。
・線溶の阻害を伴う内因性活性化: 内因性活性化剤,線溶阻害剤及び安定化剤,及び所望によりCaCl2,の組み合わせ。
・線溶の阻害を伴いヘパリンに非感受性の内因性活性化: 内因性活性化剤,線溶阻害剤,ヘパリン阻害剤及び安定化剤,及び所望によりCaCl2,の組み合わせ。
・追加の凝固因子を伴う外因性活性化: 外因性活性化剤,追加の凝固因子1種及び安定化剤,及び所望によりCaCl2,の組み合わせ。
・追加の凝固因子を伴いヘパリンに非感受性の外因性活性化: 外因性活性化剤,追加の凝固因子1種,ヘパリン阻害剤及び安定化剤,及び所望によりCaCl2,の組み合わせ。
・追加の凝固因子を伴う内因性活性化: 内因性活性化剤,追加の凝固因子1種及び安定化剤,及び所望によりCaCl2,の組み合わせ。
・追加の凝固因子を伴いヘパリンに非感受性の内因性活性化: 内因性活性化剤,追加の凝固因子1種,ヘパリン阻害剤及び安定化剤,及び所望によりCaCl2,の組み合わせ。
a)試験液を入手し,
b)上で定義した容器1を準備し,
c)上記容器1に当該試験液を加え,それにより容器内に含まれていた診断用組成物を溶解させ,
d)当該試験液と当該診断用組成物との混合物をカップ2に移し,これを粘弾性分析を実施するに適した装置4に入れ,
又は
容器1を,粘弾性分析を実施するに適した装置4に入れ,
e)当該混合物の粘弾性分析を実施する。
1.規定された液量のサンプル(例えば,全血,血漿)が,試薬組成物を含んだバイアルに直接加えられる;測定は,サンプルを添加した瞬間とほぼ同時に開始されなければならない。
2.試薬混合物がサンプルに溶解された後(5秒),試薬−サンプル混合物がピペットで試薬混合物バイアルから測定カップ2へと移される(バイアル自体が測定カップ2である場合は必要ない)。
3.次いでカップ2が,当該試験カップ内に含まれている液体にピン3が浸るような位置に置かれ,使用者により停止されるまで測定が続けられる。
2 測定カップ
3 ピン
4 測定装置
5 蓋
6a,b,c 試薬チャンバー
Claims (16)
- 試験液の粘弾性分析を実施する方法であって,次のステップすなわち:
a)試験液を入手し;
b)少なくとも1種の凝固活性化剤と,該試験液の再カルシウム化を保証するに十分な量のCaCl 2 であってよいカルシウム塩と,ヘパリン阻害剤とを含んでなる診断用組成物であって,それらの成分が,本質的に乾燥形態で且つ特定された試験液の1回の粘弾性分析を実施するに十分な量で存在し,且つそれらの成分が物質混合物の形では存在せず空間的に分離された形で存在するものである診断用組成物を含有する容器(1)を準備し;
c)該容器(1)に該試験液を加え,それにより該容器内に含まれている該診断用組成物を溶解させ;
d)粘弾性分析を実施するに適した装置(4)内に該容器(1)を入れ;そして
e)該試験液と該診断用組成物との混合物の粘弾性分析を実施すること
を含んでなる方法。 - 請求項1の方法であって,該試験液が,ヒトを含む哺乳類のものであってよい血液サンプルである,方法。
- 請求項1又は2の方法であって,ステップc)が1〜60秒を要するものである,方法。
- 請求項1又は2の方法であって,ステップc)が2〜10秒を要するものである,方法。
- 請求項1〜4の何れかの方法であって,ステップd)において,容器(1)から該混合物を手で又は自動的にピペッティングし,これをピペッティングにより装置(4)に,又は該装置(4)の測定カップ(2)に移すことにより,該混合物が移されるものである,方法。
- 請求項1〜5の何れかの方法であって,該装置(4)がトロンボエラストメーター又はトロンボエラストグラフである,方法。
- 請求項1〜6の何れかの方法であって,該分析が,凝固時間,凝血塊形成時間,凝血塊の経時的な堅さ及び/又は線溶の測定を含むものである,方法。
- 請求項1〜7の何れかにおいて試験液の粘弾性分析に使用するための診断用組成物であって,次の成分
a)少なくとも1種の凝固活性化剤,
b)該試験液の再カルシウム化を保証するに十分な量のCaCl 2 であってよいカルシウム塩と,そして
ヘパリン阻害剤と
を含んでなり,それらの成分が,本質的に乾燥形態で且つ特定された試験液の1回の粘弾性分析を実施するに十分な量で存在し,且つそれらの成分が物質混合物の形では存在せず空間的に分離された形で存在するものである,診断用組成物。 - 請求項8の診断用組成物であって,それらの成分の空間的分離が,分離された担体中に各成分を導入することによって実現されるものであり,該担体が,ショ糖又はセルロースであってよい炭水化物を少なくとも含んでなるものである,診断用組成物。
- 請求項8又は9の診断用組成物であって,該凝固の活性化剤が内因性及び/又は外因性の活性化剤である,診断用組成物。
- 請求項9の診断用組成物であって,該凝固の外因性活性化剤が,脂質化TF又はrTFであってよい組織因子(TF)であるか,又は該凝固の内因性活性化剤が,セライト,エラグ酸,硫酸塩,カオリン,シリカ,RNA又はそれらの混合物よりなる群より選ばれるものである,診断用組成物。
- 請求項8〜11の何れかの診断用組成物であって,該ヘパリン阻害剤が,ヘパリナーゼ,プロタミン,又はプロタミン−関連ペプチドより選ばれるものである,診断用組成物。
- 請求項8〜12の何れかの診断用組成物であって,該凝固因子が1種又は2種以上の凝固因子から又はFXa又はFVa又は活性化プロテインC又はFVIIaであってよい活性化凝固因子から選ばれるものであるか,又は
CaCl 2 が,血液サンプルであってよい該試験液中に1〜100μmol/mlの量で存在するものである,
診断用組成物。 - 請求項8〜13の何れかの診断用組成物であって,該乾燥形態が凍結乾燥された形態であり,及び/又は,アルブミン又はゼラチンであってよい安定化剤を更に含むものである,診断用組成物。
- 請求項8〜14の何れかの診断用組成物を含んでなる容器(1)であって,内側面の輪郭が開口から底へと窄まるように形成されているものであってよいバイアル又はキュベットの形をとるものである,容器。
- 請求項15の容器であって,粘弾性測定を実施するための装置に取り付けることができるように内側形状が与えられているものである,容器。
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RU2016140878A (ru) | 2018-04-18 |
BR112012024841A2 (pt) | 2019-09-24 |
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ES2586208T3 (es) | 2016-10-13 |
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PT2553470T (pt) | 2016-08-12 |
EP2553470B1 (en) | 2016-05-11 |
AU2010350041A1 (en) | 2012-09-20 |
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