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Biology of Reproduction, Vol 23, 669-676, Copyright © 1980 by Society for the Study of Reproduction

Androgenic Control of Phallic Papillae in Hamsters: A Quantitative Analysis Using the Scanning Electron Microscope

J. MAL WHITSETT 1, MARK L. AYER 1, , and KENNETH E. MUSE 1

1 Department of Zoology, North Carolina State University, Raleigh, North Carolina 27650


The scanning electron microscope was used to measure the density and linear characteristics of phallic papillae in hamsters. Papillae at the distal end of the penis were smaller and more highly concentrated than those at the proximal end. Castration of adult males resulted in the disappearance of papillae within 3 weeks after the operation. The administration of testosterone propionate (TP), but not estradiol benzoate, maintained papillae in adult castrates. The ability of adult females to elaborate papillae on the clitoris in response to exogenous androgen was enhanced markedly by treatment with as little as 10 µg TP during the neonatal period.

Note:
ACKNOWLEDGMENTS This is Paper No. 6535 of the Journal Series of the North Carolina Agricultural Research Service, Raleigh. This investigation was supported in part by NSF Grant BNS 78-07661 and Biomedical Research Support Grant 87610. We are grateful to Linda L. Miller for her technical assistance.

Submitted on June 18, 1980
Accepted on July 8, 1980






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Copyright © 1980 by the Society for the Study of Reproduction.