Naturally occurring steroids in Xenopus oocyte during meiotic maturation. Unexpected presence and role of steroid sulfates
Keywords: ADIOL, androstenediol; DHEA, dehydroepiandrosterone; DHEA-S, dehydroepiandrosterone sulfate; GC-MS, gas chromatography-mass spectrometry; GVBD, germinal vesicle breakdown; LH, luteinizing hormone; PREG, pregnenolone; PREG-S, pregnenolone sulfateSteroid; O