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Vasoactive intestinal polypeptide levels and distribution in the penis of old rats

F Amenta¹, C Cavallotti, M De Rossi

¹Dipartimento di Scienze Neurologiche, Università La Sapienza, Roma, Italy.

Journal of Neural Transmission

|January 1, 1987

Abstract:

Vasoactive intestinal polypeptide (VIP) levels and distribution were studied in the penis of young-adult (3-month-old) and old (30-month-old) Wistar rats by radioimmunoassay and immunofluorescence. No significant changes in tissue VIP concentrations or distribution occurred in the penis of old rats compared to young-adult rats. The present data indicate that the age-related impairment of male sexual function is not dependent on modifications of the VIP-ergic innervation of penile tissue.

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