Levels of immunoreactive inhibin-like material in urine during the menstrual cycle.
Using a specific and sensitive radioimmunoassay, the authors determined levels of inhibin-like material in the urine of eight healthy women with normal menstrual cycle length of 28 +/- 4 days. The results revealed a cyclic variation in urinary immunoreactive inhibin levels during the menstrual cycles, with a sharp rise in levels three to four days prior to luteinizing hormone (LH) and follicle-stimulating hormone (FSH) peaks. These levels of immunoreactive inhibin may thus serve as a parameter to detect impending LH surge.
D000818:Animals; D005260:Female; D005640:Follicle Stimulating Hormone / Q000652:urine; D006801:Humans; D007265:Inhibins / Q000502:physiology / Q000652:urine*; D007986:Luteinizing Hormone / Q000652:urine; D008297:Male; D008598:Menstruation; D011863:Radioimmunoassay; D051381:Rats
D007265:Inhibins; D007986:Luteinizing Hormone; D005640:Follicle Stimulating Hormone