Possible role of vasoactive intestinal peptide in the hyperprolactinemia induced by ethanol

A Seilicovich¹, B Duvilanski, L Debeljuk

¹Centro de Investigaciones en Reproducción, Facultad de Medicina, Universidad de Buenos Aires, Argentina.

|March 26, 1991

Abstract:

The effect of the blockade of endogenous VIP by injecting a specific rabbit anti-VIP serum (A-VIP) was studied in rats receiving an acute injection of ethanol. A-VIP administration decreased serum prolactin levels and reduced the hyperprolactinemia induced by ethanol. We also investigated the effect of the acute administration of ethanol on the concentration and release of VIP from the mediobasal hypothalamus. Ethanol decreased VIP concentration in the mediobasal hypothalamus, whereas it stimulated the in vitro K(+)-evoked release of VIP from this tissue. Conversely, ethanol increased VIP concentration in the anterior pituitary gland. The data indicate that VIP may be involved in the pituitary response to ethanol. The increased anterior pituitary VIP after ethanol may be due to an augmented release from the mediobasal hypothalamus.

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Possible role of vasoactive intestinal peptide in the hyperprolactinemia induced by ethanol

Abstract:

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