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  • Title: Neonatal treatment of hamsters with barbiturate alters adult sexual behavior.
    Author: Clemens LG, Popham TV, Ruppert PH.
    Journal: Dev Psychobiol; 1979 Jan; 12(1):49-59. PubMed ID: 478177.
    Abstract:
    Male and female hamsters were given 50 micrograms pentobarbital, 100 micrograms pentobarbital, or 100 micrograms d-amphetamine on postnatal Days 2-4. When tested for masculine sexual behavior in adulthood, males treated with 100 micrograms pentobarbital showed behavioral deficits when tested with testes intact as well as after castration and treatment with testosterone propionate. Deficits shown by 50 micrograms pentobarbital males were overcome by testosterone replacement. When tested for feminine sexual behavior, males treated with 50 micrograms pentobarbital showed enhanced lordotic responses whereas males treated with 100 micrograms d-amphetamine showed no differences from controls when tested for female sexual behavior or when tested for male sexual behavior. Drug treatments had no effect on adult masculine or feminine sexual behavior in neonatally treated females. The results of this study show that pentobarbital can inhibit normal masculinization of the male when given during behavioral sexual differentiation.
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