Melatonin ni imisemburo isohorwa na gine ya pineine yubwonko mu nyamabere n'abantu.Kuberako irashobora gukora selile zitanga urumuri rwa melanin, niyo mpamvu izina melatonin, rizwi kandi nka hormone pineal, melatonin, melatonin.Nyuma ya melatonine ikomatanyirijwe kandi ikabikwa mu mubiri wa pinusi, impuhwe z'umutima zimpuhwe zinjiza ingirabuzimafatizo kugirango zirekure melatonine.Ururenda rwa melatonin rufite injyana ya circadian igaragara, ihagarikwa kumanywa kandi ikora nijoro.Melatonin irashobora kubuza hypothalamic-pituitar-gonadal axis, kugabanya ibiri muri gonadotropine irekura imisemburo, gonadotropine, luteinizing hormone na follicle itera imisemburo, kandi irashobora gukora kuri gonado kugirango igabanye ibirimo androgene, estrogene na progesterone.