Effect of castration and castration with hormone replacement on the plasma prolactin responses to neuroendocrine challenge with i.v. mCPP in the male rat following a low tryptophan diet.
Previous studies have shown that castration increased brain 5-HT synthesis and that sex steroid hormone treatment can reverse this effect. Tryptophan (TRP) depletion has been shown to reduce brain 5-HT synthesis and to cause the post-synaptic 5-HT receptors to up-regulate. We have studied the effects of castration and hormone replacement on the prolactin responses to neuroendocrine challenge with the post-synaptic 5-HT agonist, m-chlorophenylpiperazine (m-CPP) in male rats on a low TRP diet. ...Expand abstract
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