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Text
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URL Address
<a href="http://doi.org/10.1016/0031-9384(91)90435-q" target="_blank" rel="noreferrer noopener">http://doi.org/10.1016/0031-9384(91)90435-q</a>
Pages
1047–1050
Issue
5
Volume
50
Dublin Core
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Title
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Lack of an inhibitory effect of hyperprolactinemia on androgen-dependent marking.
Publisher
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Physiology & behavior
Date
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1991
1991-11
Subject
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Animal/*physiology; Animals; Arousal/physiology; Brain/*physiology; Defecation/physiology; Inbred F344; Male; Mesencephalon/physiology; Neural Inhibition/*physiology; Neural Pathways/physiology; Preoptic Area/physiology; Prolactin/*physiology; Rats; Sex Attractants/*urine; Sexual Behavior; Testosterone/*physiology; Urination/*physiology
Creator
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Doherty P C
Description
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An experiment was performed to determine if hyperprolactinemia (chronically elevated serum prolactin levels), which inhibits testosterone-activated male sexual activity, also affects other androgen-dependent behaviors. Thus defecation and urine marking in response to a novel environment were examined in sham-operated and pituitary-grafted (hyperprolactinemic) male rats that had been castrated or castrated and given subcutaneous testosterone implants. Both castration and pituitary grafting significantly inhibited defecation, with the inhibitory effects of hyperprolactinemia being most pronounced in the castrated non-testosterone-treated animals. In contrast, castration significantly reduced the amount of urine marking observed, but pituitary grafting was without effect on this behavior. Thus, although hyperprolactinemia may inhibit sexual activity through an antagonism of the activational effects of testosterone, these results suggest that this effect is specific to sexual behavior and does not involve a more generalized inhibition of the effects of testosterone on androgen-dependent behaviors.
Identifier
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<a href="http://doi.org/10.1016/0031-9384(91)90435-q" target="_blank" rel="noreferrer noopener">10.1016/0031-9384(91)90435-q</a>
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1991
Animal/*physiology
Animals
Arousal/physiology
Brain/*physiology
Defecation/physiology
Doherty P C
Inbred F344
Male
Mesencephalon/physiology
Neural Inhibition/*physiology
Neural Pathways/physiology
Physiology & behavior
Preoptic Area/physiology
Prolactin/*physiology
Rats
Sex Attractants/*urine
Sexual Behavior
Testosterone/*physiology
Urination/*physiology