title: Diurnal and annual variations in plasma androgen levels in the adult male marmoset (callithrix jacchus).
abstract: Diurnal and annual variations in plasma androgen levels were studied in adult male marmosets. A distinct diurnal pattern, characterized by low androgen levels during the lights-on period and high levels during the lights-off period was observed (n = 7). In contrast to this, no definite circannual pattern in androgen levels was observed (n = 6).
mesh_terms: D000728:Androgens / Q000097:blood*; D000818:Animals; D001683:Biological Clocks; D002144:Callithrix / Q000097:blood*; D002143:Callitrichinae / Q000097:blood*; D002940:Circadian Rhythm; D008297:Male; D012621:Seasons
chemical_list: D000728:Androgens