Document Detail

Plasma concentrations of estradiol 17beta and PGF2alpha metabolite and placental fatty acid composition and antioxidant enzyme activity in cows with and without retained fetal membranes.
MedLine Citation:
PMID:  11403498     Owner:  NLM     Status:  MEDLINE    
Fetal membrane retention is one of the most common problems in Holstein cattle after parturition. To investigate mechanisms involved, the following parameters were studied in the peri-parturition period: plasmatic concentrations of estradiol-17beta (E2) and PGFM (PGF2alpha metabolite), activity of antioxidant enzymes (superoxide dismutase-SOD, catalase-CAT and glutathione peroxidase-GSH-Px), thiobarbituric acid reagent substances (TBAR) concentrations and fatty acid composition of the placentae. E2 at parturition in the NPR group (control cows, n = 10) was higher than in PR cows (placental retention, n = 10) (P < 0.05). Activity of SOD in fetal tissue of NPR animals was higher than that of the PR group. In contrast, there was no difference between the two groups in activity of GSH-Px and CAT and the TBAR content of placental tissues. PR maternal tissues had proportionally more arachidonic and linoleic acid than tissues from NPR cows. Therefore, a complex of sequential events may cause placenta retention, starting with an unbalance of antioxidant capacity of the placenta, followed by a decrease in production of estrogen, which leads to the accumulation of arachidonic and linoleic acid in placental tissues.
A Wischral; A Nishiyama-Naruke; R Curi; R C Barnabe
Related Documents :
20967758 - Adipose triglyceride lipase is a major hepatic lipase that regulates triacylglycerol tu...
17151468 - Randomly interesterified triacylglycerol containing medium- and long-chain fatty acids ...
985408 - Measurement of tissue oxygen with a fluorescent probe.
21895658 - Retinoic acid influences neuronal migration from the ganglionic eminence to the cerebra...
3791968 - Identification and characterization of a fatty acid binding protein in bovine mammary g...
235418 - Amino terminal residue heterogeneity of bovine and ovine growth hormones as revealed by...
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Prostaglandins & other lipid mediators     Volume:  65     ISSN:  1098-8823     ISO Abbreviation:  Prostaglandins Other Lipid Mediat.     Publication Date:  2001 Jun 
Date Detail:
Created Date:  2001-06-13     Completed Date:  2001-11-01     Revised Date:  2003-11-14    
Medline Journal Info:
Nlm Unique ID:  9808648     Medline TA:  Prostaglandins Other Lipid Mediat     Country:  United States    
Other Details:
Languages:  eng     Pagination:  117-24     Citation Subset:  IM    
Department of Veterinary Medicine, Rural Federal University of Pernambuco, Recife, PE, Brazil.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Antioxidants / analysis*
Catalase / metabolism
Cattle Diseases / blood*
Dinoprost / analogs & derivatives,  blood*
Estradiol / blood*
Fatty Acids / analysis*
Glutathione Peroxidase / metabolism
Labor, Obstetric / blood
Placenta / chemistry
Placenta, Retained / blood,  veterinary*
Superoxide Dismutase / metabolism
Thiobarbituric Acid Reactive Substances / analysis
Reg. No./Substance:
0/Antioxidants; 0/Fatty Acids; 0/Thiobarbituric Acid Reactive Substances; 27376-76-7/15-keto-13,14-dihydroprostaglandin F2alpha; 50-28-2/Estradiol; 551-11-1/Dinoprost; EC; EC Peroxidase; EC Dismutase

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

Previous Document:  Differential regulation of prostaglandin endoperoxide synthase-2 transcription in ovine granulosa an...
Next Document:  Platelet-activating factor (PAF)-like activity, localization of PAF receptor (PAF-R) and PAF-acetylh...