Document Detail


Inhibition of early luteal angiogenesis by gonadotropin-releasing hormone antagonist treatment in the primate.
MedLine Citation:
PMID:  10852474     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Angiogenesis during luteal development is essential for normal lutein cell function, but the control of this process and the relationships between the steroidogenic and endothelial cells have still to be elucidated. The aim of this study was to: 1) quantify endothelial cell proliferation throughout the luteal phase of the marmoset ovulatory cycle; 2) determine the effect of gonadotropin withdrawal using GnRH antagonist treatment on the early luteal phase angiogenesis peak; and 3) describe the resultant morphological changes in the corpus luteum (CL). Ovaries were collected during the early, mid-, and late luteal phase, and changes in angiogenic activity were determined by quantification of bromodeoxyuridine incorporation. Animals were treated with a GnRH antagonist, on luteal days 1 and 2, and ovaries were collected on day 3. A proliferation index was obtained by counting the number of bromodeoxyuridine immunopositive cells in luteal sections. Cell proliferation was maximal in the early luteal phase and fell significantly in the mid- and late CL. GnRH antagonist treatment reduced the early luteal phase proliferation peak by 90%, suppressed plasma progesterone, and severely disrupted lutein cell morphology. These results demonstrate that the intense angiogenesis in the early primate CL is dependent on gonadotropin stimulation of lutein cells.
Authors:
S E Dickson; H M Fraser
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The Journal of clinical endocrinology and metabolism     Volume:  85     ISSN:  0021-972X     ISO Abbreviation:  J. Clin. Endocrinol. Metab.     Publication Date:  2000 Jun 
Date Detail:
Created Date:  2000-06-23     Completed Date:  2000-06-23     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0375362     Medline TA:  J Clin Endocrinol Metab     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  2339-44     Citation Subset:  AIM; IM    
Affiliation:
Medical Research Council Human Reproductive Sciences Unit, Centre for Reproductive Biology, Edinburgh, United Kingdom. s.dickson@ed-rbu.mrc.ac.uk
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MeSH Terms
Descriptor/Qualifier:
Animals
Callithrix
Cell Division / drug effects
Corpus Luteum / blood supply*
Endothelium, Vascular / cytology*,  drug effects,  physiology
Female
Gonadotropin-Releasing Hormone / antagonists & inhibitors
Hormone Antagonists / pharmacology*
Luteal Phase
Mitotic Index / drug effects
Neovascularization, Physiologic / drug effects*
Oligopeptides / pharmacology*
Ovulation
Progesterone / blood
Chemical
Reg. No./Substance:
0/Hormone Antagonists; 0/Oligopeptides; 151272-78-5/antarelix; 33515-09-2/Gonadotropin-Releasing Hormone; 57-83-0/Progesterone

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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