Document Detail

Expression of progesterone receptors in bovine corpus luteum during pregnancy.
MedLine Citation:
PMID:  15170416     Owner:  NLM     Status:  MEDLINE    
The expression of progesterone receptors and matrix ribonucleic acid in 37 corpora lutea in 1-7 month's pregnant cows was investigated. Corpora lutea were obtained from slaughtered animals. Progesterone receptors expression was confirmed using biotin-streptavidin immunohistochemistry. Matrix ribonucleic acid expression was studied using pyronin staining by Unna-Brashe method. The expression of progesterone receptors was the highest in the luteal cells of the one-month pregnancy corpus luteum. It decreased significantly (p<0.05) from the third to the fourth month of pregnancy, but there was no significant difference in the expression of progesterone receptors from the first to the second and from the second to the third month of pregnancy. Also, there was no significant difference in the expression of progesterone receptors from the fourth to the fifth month and from the fifth to the sixth month of pregnancy. The expression of matrix ribonucleic acid also decreased during pregnancy, but gradually, with no significant monthly differences. It decreased significantly (p<0.05) from the sixth to the seventh month of pregnancy only. Our study shows that both indices - progesterone receptors and matrix ribonucleic acid decrease in the steroidogenic luteal cells during pregnancy and that a strong linear correlation (r=0.88) exists between these indices.
Regīna Tamane; Māra Pilmane; Aleksandrs Jemeļjanovs; Anita Dabuzinskiene
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Medicina (Kaunas, Lithuania)     Volume:  40     ISSN:  1648-9144     ISO Abbreviation:  Medicina (Kaunas)     Publication Date:  2004  
Date Detail:
Created Date:  2004-06-01     Completed Date:  2004-11-12     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  9425208     Medline TA:  Medicina (Kaunas)     Country:  Lithuania    
Other Details:
Languages:  eng     Pagination:  459-66     Citation Subset:  IM    
Institute of Anatomy and Anthropology, Riga Stradin's University, Dzirciema iela 16, Riga LV-1007, Latvia.
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MeSH Terms
Corpus Luteum / cytology,  metabolism*
RNA, Messenger / analysis
Receptors, Progesterone / analysis,  genetics,  metabolism*
Staining and Labeling
Time Factors
Reg. No./Substance:
0/RNA, Messenger; 0/Receptors, Progesterone

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

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