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Prostaglandins ; 42(6): 493-500, 1991 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-1801060

RESUMO

Arthritis induced in hyperimmune rabbits by the intra-articular injection of the specific antigen was associated with a fall in circulating platelet number that lasted up to 60 days. Pretreatment of the animals with indomethacin and econazol at doses that significantly decreased thromboxane levels in the synovial fluids reduced the arthritis-related thrombocytopenia in the acute phase of arthritis. A similar inhibition was seen when L-655,240, a specific Thromboxane A2 antagonist, and BN 52021, a Platelet Activating Factor antagonist were used. The results suggest that both thromboxane and PAF are involved in the mechanisms leading to thrombocytopenia in this experimental model of arthritis.


Assuntos
Artrite Experimental/complicações , Diterpenos , Trombocitopenia/etiologia , Animais , Econazol/uso terapêutico , Feminino , Ginkgolídeos , Indóis/uso terapêutico , Indometacina/uso terapêutico , Lactonas/uso terapêutico , Masculino , Fator de Ativação de Plaquetas/antagonistas & inibidores , Fator de Ativação de Plaquetas/fisiologia , Coelhos , Líquido Sinovial/metabolismo , Trombocitopenia/prevenção & controle , Tromboxano A2/antagonistas & inibidores , Tromboxano A2/fisiologia , Tromboxano B2/fisiologia
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