title: Role of the circadian system in reproductive phenomena.
mesh_terms: D000328:Adult; D000368:Aged; D000818:Animals; D002940:Circadian Rhythm; D004958:Estradiol / Q000097:blood; D004971:Estrus; D005260:Female; D005640:Follicle Stimulating Hormone / Q000097:blood; D007987:Gonadotropin-Releasing Hormone / Q000378:metabolism; D006801:Humans; D008027:Light; D007986:Luteinizing Hormone / Q000097:blood; D008297:Male; D009043:Motor Activity / Q000502:physiology; D018377:Neurotransmitter Agents / Q000502:physiology; D009638:Norepinephrine / Q000502:physiology; D010053:Ovary / Q000502:physiology; D010060:Ovulation; D010507:Periodicity; D010870:Pineal Gland / Q000502:physiology; D011247:Pregnancy; D011627:Puberty; D012098:Reproduction / Q000528:radiation effects; D012621:Seasons; D012741:Sexual Maturation; D013493:Suprachiasmatic Nucleus / Q000502:physiology; D013737:Testis / Q000502:physiology; D013739:Testosterone / Q000097:blood
chemical_list: D018377:Neurotransmitter Agents; D007987:Gonadotropin-Releasing Hormone; D013739:Testosterone; D004958:Estradiol; D007986:Luteinizing Hormone; D005640:Follicle Stimulating Hormone; D009638:Norepinephrine