Journal of Andrology
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
This Article
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Araki, K.
Right arrow Articles by Taya, K.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Araki, K.
Right arrow Articles by Taya, K.

Journal of Andrology, Vol 21, Issue 4 558-565, Copyright © 2000 by The American Society of Andrology

JOURNAL ARTICLE

Involvement of inhibin in the regulation of follicle-stimulating hormone secretion in the young adult male Shiba goat

K. Araki, K. Y. Arai, G. Watanabe and K. Taya
Laboratory of Veterinary Physiology, Faculty of Agriculture, Tokyo University of Agriculture and Technology, Fuchu, Japan.

The roles of inhibin and testosterone in the regulation of gonadotropin secretion were investigated in young adult male Shiba goats (8-12 months of age). Plasma levels of inhibin but not testosterone abruptly decreased after hemicastration (75% of the initial level), concomitant with a progressive rise in plasma levels of FSH. Removal of the remaining testis at 33 days after the hemicastration quickly decreased plasma levels of both inhibin and testosterone and induced a progressive increase in plasma FSH and LH. Implantation of testosterone sheets immediately after castration suppressed the increase in plasma FSH in part only, whereas the increase in LH secretion was almost completely suppressed. An i.v. injection of antiserum against [Tyr30] porcine inhibin alpha(1-30) resulted in a significant increase in plasma FSH in a dose-dependent manner, without altering plasma concentrations of LH. These findings clearly indicate that both inhibin and testosterone physiologically regulate FSH secretion and that testosterone is the principal gonadal factor regulating LH secretion in the adult male goat.


This article has been cited by other articles:


Home page
 ReproductionHome page
M Ozawa, D Tabayashi, T A Latief, T Shimizu, I Oshima, and Y Kanai
Alterations in follicular dynamics and steroidogenic abilities induced by heat stress during follicular recruitment in goats
Reproduction, May 1, 2005; 129(5): 621 - 630.
[Abstract] [Full Text] [PDF]

Home page
 ReproductionHome page
M S Medan, S Akagi, H Kaneko, G Watanabe, C G Tsonis, and K Taya
Effects of re-immunization of heifers against inhibin on hormonal profiles and ovulation rate
Reproduction, October 1, 2004; 128(4): 475 - 482.
[Abstract] [Full Text] [PDF]

Home page
 Biol. Reprod.Home page
H. Ishigame, M. S. Medan, G. Watanabe, Z. Shi, H. Kishi, K. Y. Arai, and K. Taya
A New Alternative Method for Superovulation Using Passive Immunization Against Inhibin in Adult Rats
Biol Reprod, July 1, 2004; 71(1): 236 - 243.
[Abstract] [Full Text] [PDF]

Home page
 Biol. Reprod.Home page
M. S. Medan, G. Watanabe, K. Sasaki, S. Sharawy, N. P. Groome, and K. Taya
Ovarian Dynamics and Their Associations with Peripheral Concentrations of Gonadotropins, Ovarian Steroids, and Inhibin During the Estrous Cycle in Goats
Biol Reprod, July 1, 2003; 69(1): 57 - 63.
[Abstract] [Full Text] [PDF]

Home page
 J ANIM SCIHome page
J. A. Delgadillo, J. A. Flores, F. G. Veliz, H. F. Hernandez, G. Duarte, J. Vielma, P. Poindron, P. Chemineau, and B. Malpaux
Induction of sexual activity in lactating anovulatory female goats using male goats treated only with artificially long days
J Anim Sci, November 1, 2002; 80(11): 2780 - 2786.
[Abstract] [Full Text] [PDF]


HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Copyright © 2000 by The American Society of Andrology.