PMID: 7018504May 1, 1981Paper

Testosterone inhibits prostacyclin production by rat aortic smooth muscle cells in culture

Atherosclerosis
J NakaoH Orimo

Abstract

The effects of testosterone on cell proliferation and prostacyclin production were investigated using rat aortic smooth muscle cells in culture. Testosterone at 10(-10)-10(-6) M did not have any significant effect on cell proliferation, but it significantly inhibited prostacyclin production by the cells. Maximal inhibition of prostacyclin production (70%) was observed when cells were treated with a physiological concentration of 19(-8) M testosterone for 5 consecutive days. These results suggest that testosterone may stimulate thrombus formation and accelerate atherosclerosis by suppressing prostacyclin production in arterial smooth muscle cells.

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