Title : Regulation of the sperm calcium channel CatSper by endogenous steroids and plant triterpenoids.

Pub. Date : 2017 May 30

PMID : 28507119






3 Functional Relationships(s)
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1 However, physiological concentrations of testosterone and hydrocortisone inhibited CatSper activation by progesterone. Progesterone cation channel sperm associated 1 Homo sapiens
2 Interestingly, both compounds competed with progesterone and pregnenolone sulfate and significantly reduced CatSper activation by either steroid. Progesterone cation channel sperm associated 1 Homo sapiens
3 These results indicate that (i) pregnenolone sulfate together with progesterone are the main steroids that activate CatSper and (ii) pristimerin and lupeol can act as contraceptive compounds by averting sperm hyperactivation, thus preventing fertilization. Progesterone cation channel sperm associated 1 Homo sapiens