Biol Reprod Keystone Symposia Conference on Frontiers in Reproductive Biology & Regulation of Fertility.
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Biology of Reproduction, Vol 24, 491-495, Copyright © 1981 by Society for the Study of Reproduction

Testicular Innervation is Necessary for the Response of Plasma Testosterone Levels to Acute Stress

ARTHUR I. FRANKEL 1, and ETHEL L. RYAN 1

1 Department of Biological Sciences, State University of New York at Binghamton, Binghamton, New York 13901


At 1, 2, 4, and 7 weeks or 15 months postsurgery, bilateral denervation of the testes of mature male rats had no effect on basal levels of plasma testosterone, testicular weight, spermatogenesis, or mating behavior. However, bilateral denervation blocked an acute stress-induced rise of plasma testosterone. This is the first report of a possible role of testicular innervation in the mature male rat.

Note:
ACKNOWLEDGMENTS We thank Dr. B. V. Caldwell, Yale University School of Medicine, for a generous donation of antibody to testosterone, and Mrs. M. R. Frankel for typing the manuscript. We are indebted to Dr. R. T. Hill, when at NIH, for first suggesting to us that innervation might play some role in testicular regulation in the male rat.

Submitted on September 5, 1980
Accepted on November 19, 1980




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Copyright © 1981 by the Society for the Study of Reproduction.