... daily pattern ofplasma prolactin, luteinizing hormone (LH), follicle-stimulating hormone (FSH) and testosterone levels at 6different time points within a 24-h cycle in growing malerats kept in ... Freund's adjuvant on 24-hourrhythms in plasma prolactin, growth hormone, thyrotropin,insulin, follicle-stimulating hormone, luteinizing hormone and testosterone in rats. Life Sciences 2000, 66:1969-1977.18. ... mammalianpaternal behavior [26]. Hyperprolactinemia in malesinduces hypogonadism by inhibiting gonadotropin-releasing hormone pulsatile secretion and, consequently,FSH, LH and testosterone release. This...