Mechanisms underlying endothelin's inhibition of FSH-stimulated progesterone production by ovarian granulosa cells.


In previous studies in porcine granulosa cell cultures, endothelin-1 (ET-1) was shown to inhibit FSH-stimulated cAMP and progesterone accumulation, and to increase inositol phosphate formation and cytosolic calcium ion concentration. The latter results suggest an action of ET-1 via the activation of phospholipase C. Here we have investigated the following… (More)


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