Document Detail

Cell-specific localization of progesterone receptors in the bovine ovary at different stages of the oestrous cycle.
MedLine Citation:
PMID:  16650698     Owner:  NLM     Status:  MEDLINE    
This immunohistochemical study describes the localization of progesterone receptors (PR) in the bovine ovary of 23 cows at different stages of the oestrous cycle. In primordial, primary and secondary follicles the score for PR in the follicle cells increased progressively with the maturation of the follicle. In vital tertiary follicles and cystic atretic follicles a moderate score for PR was found, while in obliterative atretic follicles the score was much lower. Scores were high in corpora hemorrhagica, low in corpora lutea and still lower in corpora albicantia. Low PR scores were also found in the tunica albuginea and surface epithelium. Cyclic variations of PR immunoreactivity were manifest in most ovarian tissues. Follicular scores for PR were high in oestrus and decreased during the following stages, whereas scores in corpora lutea cells varied according to a characteristic pattern with high levels during oestrus and metoestrus. The variations in the scores for PR in the different ovarian cell types suggest a cell-specific and cycle-dependent influence of progesterone. A negative correlation was found between the PR scores and the plasma progesterone concentration.
M D'Haeseleer; P Simoens; W Van den Broeck
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Publication Detail:
Type:  Journal Article     Date:  2006-05-02
Journal Detail:
Title:  Animal reproduction science     Volume:  98     ISSN:  0378-4320     ISO Abbreviation:  Anim. Reprod. Sci.     Publication Date:  2007 Apr 
Date Detail:
Created Date:  2007-02-19     Completed Date:  2007-10-04     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7807205     Medline TA:  Anim Reprod Sci     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  271-81     Citation Subset:  IM    
Department of Morphology, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, B-9820 Merelbeke, Belgium.
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MeSH Terms
Cattle / metabolism*
Estrous Cycle*
Ovary / chemistry*,  cytology,  physiology
Progesterone / blood
Receptors, Progesterone / analysis*
Reg. No./Substance:
0/Receptors, Progesterone; 57-83-0/Progesterone

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

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