Gamendazole is a novel drug candidate for male contraception. It has been shown to reduce fertility in male rats without affecting testosterone levels.
Nogotrienone is an anabolic steroid with fertility and contraceptive activity that has been studied as a therapeutic agent for hereditary angioneurotic edema.
Zearalenone-13C18is intended for use as an internal standard for the quantification of zearalenone by GC- or LC-MS. Zearalenone is a mycotoxin that has been found inFusariumand has estrogenic activities.1It binds to human estrogen receptor α (ERα) and ERβ (IC50s = 9 and 5.8 nM, respectively).2Zearalenone induces precocious development of mammary tissues in young female pigs and prepucial enlargement in young male pigs.3Zearalenone (1.5-5 mg kg of diet) induces hyperestrogenism in pigs. It also induces degeneration of meiotic chromatin in oocytes and reduces fertility in pigs when administered at a dose of 200 μg kg.4Zearalenone has been found as a contaminant in wheat, maize, and barley and livestock feeds.3,4