A. Uzunova, E. Ramey, P. Ramwell
May 1, 1977
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Prostaglandins
Abstract
Sodium arachidonate (i.v.) has previously been shown to induce pulmonary emboli formation and a dose dependent cyanosis and respiratory depression in mice. Subsequently, we found that male mice are significantly more sensitive to arachidonate than females. Aspirin given orally 2 hours prior to arachidonate administration inhibits the responses of both males and females. Pretreatment with depo-testosterone markedly increases the effect of arachidonate in both males and females and depo-estradiol pretreatment reduces the responses in all mice. This exacerbation by testosterone of the arachidonate response and the attenuating effects of estradiol is consistent with data reported using other thrombogenic techniques.