Document Detail


Platelet-activating factor (PAF)-like activity, localization of PAF receptor (PAF-R) and PAF-acetylhydrolase (PAF-AH) activity in bovine endometrium at different stages of the estrous cycle and early pregnancy*
MedLine Citation:
PMID:  11377588     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
PAF-like activity in the endometrium increased from days 2-4 to day 12 and day 20 in both cyclic and pregnant cows. There was an increase in platelet aggregation induced by PAF-like activity in the endometrium of pregnant animals on day 20 as compared to cyclic animals at the same point in time. Two major bands of PAF-R protein at 67 kDa and 97 kDa were detected by Western blot analysis. PAF-R was localized mainly in luminal and glandular epithelium of the endometrium, but the staining was markedly increased in the endometrium of pregnant cows on day 20 compared to cyclic animals on the same day. The purified PAF-AH from the endometrium is similar to in plasma. In cyclic cattle, no changes in PAF-AH activity of endometrium were observed, whereas a decrease in enzyme activity occurred in pregnant cows on day 20 as compared to cyclic animals on the same day. We suggest that the bovine endometrium produces PAF-like activity, expresses the PAF-R and possesses a PAF-AH activity which varies during pregnancy.
Authors:
U Tiemann; W Tomek; F Schneider; K Wollenhaupt; W Kanitz; F Becker; R Pöhland; H Alm
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Publication Detail:
Type:  JOURNAL ARTICLE    
Journal Detail:
Title:  Prostaglandins     Volume:  65     ISSN:  0090-6980     ISO Abbreviation:  Prostaglandins     Publication Date:  2001 Jun 
Date Detail:
Created Date:  2001-May-29     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0320271     Medline TA:  Prostaglandins     Country:  -    
Other Details:
Languages:  ENG     Pagination:  125-141     Citation Subset:  -    
Affiliation:
Unit of Reproductive Biology of Research Institute for the Biology of Farm Animals, 18196, Dummerstorf, Germany
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