Imprinting by the Neonatal Testis: A Mechanism for Sexual Dimorphism of Rat Liver Xanthine Oxidase
We have shown that adult rat liver xanthine oxidase exhibits sexual dimorphism.1 Males have greater enzyme activity by comparison to females. The increased enzyme activity in the male corresponds to a greater mass of xanthine oxidase protein.2 Immature animals of both sexes have similar enzyme activity.
KeywordsSexual Dimorphism Xanthine Oxidase Xanthine Oxidase Activity Male Castrate Androgen Therapy
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- 3.C. A. Lamartiniere, C. S. Dieringer, E. Kita, and G. Lucier, Altered sexual differentiation of hepatic uridine diphosphate glucuronyltransferase by neonatal hormone treatment in rats, Biochemistry J. 180: 313, 1979.Google Scholar