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Evaluation of platelet activation in canine immune‐mediated haemolytic anaemia
Author(s) -
Ridyard A. E.,
Shaw D. J.,
Milne E. M.
Publication year - 2010
Publication title -
journal of small animal practice
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.7
H-Index - 67
eISSN - 1748-5827
pISSN - 0022-4510
DOI - 10.1111/j.1748-5827.2010.00935.x
Subject(s) - medicine , platelet , pathogenesis , immune system , platelet activation , immunology , immune thrombocytopenia , coagulation
O bjectives : To establish whether heightened platelet activation is a common feature of canine immune‐mediated haemolytic anaemia, and to evaluate the hypothesis that platelet activation plays a role in the pathogenesis of thromboembolism.M ethods : Using whole‐blood flow‐cytometric analysis, the proportion of activated platelets and platelet‐leucocyte aggregates in blood samples from 14 dogs with immune‐mediated haemolytic anaemia and 14 healthy dogs was calculated. General linear models with binomial errors were used to compare groups. Results from the immune‐mediated haemolytic anaemia‐affected dogs were then correlated with established risk factors for thromboembolism in canine immune‐mediated haemolytic anaemia, D‐dimer concentration and antithrombin activity.R esults : There was a strong correlation between platelet activation and severe thrombocytopenia, with heightened platelet activation being observed predominantly in severely thrombocytopenic dogs.C linical S ignificance : Dogs with immune‐mediated haemolytic anaemia, particularly those with concurrent severe thrombocytopenia, are likely to have heightened platelet activation, which may play a role in the pathogenesis of thromboembolism.

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