Biol Reprod Lalor Postdoctoral Fellowships -- Application Deadline January 15, 2009
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

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 Email this article to a friend
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
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Clark, A. M.
Right arrow Articles by Hagen, D. R.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Clark, A. M.
Right arrow Articles by Hagen, D. R.
Agricola
Right arrow Articles by Clark, A. M.
Right arrow Articles by Hagen, D. R.

Biology of Reproduction, Vol 50, 993-999, Copyright © 1994 by Society for the Study of Reproduction

ARTICLES

Changes in the messenger ribonucleic acid for insulin-like growth factor-I and -II in the porcine testis during and between two waves of testicular development

AM Clark, SE Samaras, JM Hammond and DR Hagen
Pennsylvania State University, Department of Dairy and Animal Science, University Park 16802.

The boar testis was used as a model for examining the possible role of production of the insulin-like growth factors (IGF) in steroidogenesis and/or testicular growth as testicular development occurs in waves. Blood and testes were sampled from boars at different ages (100-102 days of gestation; 7, 19, and 30 days; and 10 and 25 wk), selected to occur during and between the last two waves of testicular development. Serum was analyzed for testosterone and RNA was extracted from the testes for Northern and dot-blot analysis of IGF mRNA. Testosterone concentrations declined (p = 0.01) from 7 days to 10 wk of age and rebounded at 25 wk, indicating completion of the second and third waves of testicular development. The quantity of testicular mRNA for IGF-I increased gradually with age, and that for IGF-II decreased. We therefore conclude that regulation of the expression of the mRNAs for IGF-I and -II in the pig testis is not a function of either the waves of testicular development or the level of steroidogenesis.


This article has been cited by other articles:


Home page
 EndocrinologyHome page
S. A. Khan, L. Ndjountche, L. Pratchard, L. J. Spicer, and J. S. Davis
Follicle-Stimulating Hormone Amplifies Insulin-Like Growth Factor I-Mediated Activation of AKT/Protein Kinase B Signaling in Immature Rat Sertoli Cells
Endocrinology, June 1, 2002; 143(6): 2259 - 2267.
[Abstract] [Full Text] [PDF]

Home page
 J. Nutr.Home page
F. A. Simmen, L. Badinga, M. L. Green, I. Kwak, S. Song, and R. C. M. Simmen
The Porcine Insulin-Like Growth Factor System: At the Interface of Nutrition, Growth and Reproduction
J. Nutr., February 1, 1998; 128(2): 315 - 315.
[Abstract] [Full Text]

Home page
 Endocr. Rev.Home page
L. Gnessi, A. Fabbri, and G. Spera
Gonadal Peptides as Mediators of Development and Functional Control of the Testis: An Integrated System with Hormones and Local Environment
Endocr. Rev., August 1, 1997; 18(4): 541 - 609.
[Abstract] [Full Text] [PDF]


HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Copyright © 1994 by the Society for the Study of Reproduction.