Reduced aggregability of platelets in rat anaphylaxis

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2 Citations (Scopus)


In the PRP of anaphylactic rats, ADP, collagen and thrombin induced platelet aggregation was considerably reduced. Reduced aggregability could be transferred to normal platelets by suspending them in the PPP of anaphylactic animals and the impaired aggregation of platelets from animals undergoing anaphylaxis could be restored by exchanging their plasma for that of normal controls. Ellagic acid, a known activator of factor XII, produced similar alterations as obtained in anaphylactic shock. It is suggested that the inhibition of platelet aggregation is due to the anaphylactic activation of factor XII and this mechanism may be of importance in rat anaphylaxis.

Original languageEnglish
Pages (from-to)51-56
Number of pages6
JournalPathophysiology of Haemostasis and Thrombosis
Issue number1
Publication statusPublished - Jan 1 1976


  • Anaphylactic shock
  • Ellagic acid
  • Factor XII
  • Platelet aggregation

ASJC Scopus subject areas

  • Hematology
  • Physiology (medical)

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