1. I-hormone postulated to mediate photoperiodicity ezilwaneni ezincelisayo. Ivimbela i-cerebellar nitric oxide synthetase
2. I-Melatonine ingasetshenziswa ekwenziweni kokulala, iguqula isigqi se-circadian, i-antioxidant, i-free radical scavenger
3. I-Immunostimulant;I-Melatonin receptor ligand
4. I-Melatonin inemiphumela eyinkimbinkimbi emigwaqweni ye-apoptotic, ivimbela i-apoptosis kumaseli omzimba kanye nama-neurons kodwa ithuthukisa ukufa kwe-apoptotic cell yamangqamuzana omdlavuza. Ivimbela ukwanda/ukumetastasis kwamaseli omdlavuza webele ngokuvimbela isenzo se-estrogen receptor.