title: Plasma free and total tryptophan during the oestrus cycle, in ovariectomized and in male rats.
abstract: Plasma free tryptophan was higher during prooestrus and early oestrus than at metoestrus or in ovariectomized or male rats. In contrast, total tryptophan was higher in ovariectomized and male rats than at any time in cycling females.
mesh_terms: D000818:Animals; D004971:Estrus; D005260:Female; D008297:Male; D008686:Metestrus; D010053:Ovary / Q000502:physiology*; D011247:Pregnancy; D011359:Proestrus; D051381:Rats; D012737:Sex Factors; D014364:Tryptophan / Q000097:blood*
chemical_list: D014364:Tryptophan