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Published on: June 29, 2015
[Thrombocyte aggregation in the cat]
Insights
This study details feline platelet aggregation responses to various agents. Acetylsalicylic acid (ASA) inhibits aggregation, particularly with low collagen concentrations, offering insights into feline hemostasis.
Area of Science:
- Veterinary Hematology
- Platelet Physiology
- Feline Medicine
Context:
- Understanding platelet function is crucial for diagnosing and managing feline hemostatic disorders.
- Limited research exists on feline platelet aggregation compared to other species.
- This study investigates the aggregation patterns of cat platelets.
Purpose:
- To characterize the aggregation response of feline platelets to common aggregating agents.
- To evaluate the effect of acetylsalicylic acid (ASA) on feline platelet aggregation.
- To assess platelet function in cats with specific health conditions.
Summary:
- Feline platelets showed irreversible aggregation with collagen, adenosine diphosphate (ADP), test-thrombin, and Topostasin, but not epinephrine, ristocetin, or kaolin.
- Platelet aggregation was reduced in a cat with liver damage and icterus, but normal in cats with uremia.
- Acetylsalicylic acid (ASA) inhibited collagen-induced platelet aggregation, with higher collagen concentrations overcoming this inhibition.
Impact:
- Provides baseline data for feline platelet aggregation.
- Highlights potential antiplatelet effects of ASA in cats.
- Informs veterinary diagnostics and therapeutic strategies for feline bleeding disorders.
Abstract:
Platelet aggregation in healthy and sick cats after adding various aggregating agents is described. Feline platelets aggregate irreversibly in response to 0.15-1.0 micrograms/ml collagen, 1 microM ADP, 0.3 IU/ml test-thrombin and 0.71 NIH/ml Topostasin. Epinephrine, ristocetin and kaolin failed to cause aggregation. The aggregation function was decreased in a cat with liver damage and icterus; in 2 cats with uremia platelet aggregation was normal. Acetylsalicylic acid (ASA) (10 mg/kg iv) inhibits platelet aggregation in the presence of collagen in low concentrations; high concentrations of collagen succeeded in inducing platelet aggregation.
