| BAPA, a synthetic dual inhibitor of Factor Xa and Thrombin, extends the storage-time to a maximum of 12 hours in ADP- and 24 hours in arachidonic acid-induced impedance aggregometry. | |
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MedLine Citation:
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PMID: 21348786 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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Abstract Impedance aggregometry is mainly limited by the time-dependent instability of platelets in whole blood samples, caused by the influence of ex-vivo anticoagulants. The synthesis of a new anticoagulant, Benzylsulfonyl-D-Arg-Pro-4-amidinobenzylamide (BAPA), has recently been introduced. Data from recent studies suggest stable results for up to 32 h. In view of this data we were interested in the results of ADP- and arachidonic acid (AA)-induced measurements after a prolonged storage time depending on the use of citrate or BAPA. Blood samples from 24 healthy individuals were anticoagulated with either citrate or BAPA. ADP- and AA-induced measurements were carried out between 2 h and up to 48 h after blood samples were taken. Results of ADP-induced measurements remained stable for 8 h in citrated and for a maximum of 12 h in BAPA-anticoagulated samples. AA-induced measurements yielded stable results up to 12 h in citrated and up to 24 h in BAPA anticoagulated blood. These data demonstrate that the storage time for whole blood impedance aggregometry can be prolonged when BAPA is used as an anticoagulant. However, in contrast to previous studies implicating considerably longer potential storage times we could not see a clear overall purpose in using BAPA. Further studies including blood samples of patients and the comparison of BAPA to other anticoagulants are necessary to define the potential role of BAPA anticoagulated samples. |
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Authors:
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Andreas F C Kaiser; Heinz G Endres; Andreas Mügge; Horst Neubauer |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-2-25 |
Journal Detail:
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Title: Scandinavian journal of clinical and laboratory investigation Volume: - ISSN: 1502-7686 ISO Abbreviation: - Publication Date: 2011 Feb |
Date Detail:
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Created Date: 2011-2-25 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0404375 Medline TA: Scand J Clin Lab Invest Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
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Cardiovascular Center, St. Josef Hospital, Ruhr University, Bochum, Germany. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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