Growth hormone-releasing hormone in testicular interstitial and germ cells: potential paracrine modulation of follicle-stimulating hormone action on Sertoli cell function.


GH-releasing hormone (GHRH) is present in the interstitial and germ cells of the rat testis. In previous studies we found that GHRH is secreted from rat adult Leydig cells, in which it stimulates basal and LH-induced cAMP formation and steroidogenesis. In other studies cAMP production in Sertoli cells was found to be stimulated by GHRH. In the present… (More)


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