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Plasma Concentrations Of Pregnancy-Associated Glycoproteins Measured Using Anti-Bovine PAG-2 Antibodies On Day 120 Of Gestation Predict Abortion In Dairy Cows Naturally Infected With Neospora caninum.
MedLine Citation:
PMID:  23228018     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
The present study sought to determine: (i) the effects of Neospora caninum infection and twin pregnancy on plasma pregnancy-associated glycoprotein-2 (PAG-2) concentrations throughout pregnancy and (ii) whether plasma PAG-2 concentrations could predict abortion in N. caninum-infected cows. The study was performed on a commercial Holstein-Friesian dairy herd in northeastern Spain and the final data included those recorded in 53 non-aborting and 19 aborting animals. Blood samples were collected immediately before pregnancy diagnosis (on Days 40, 90, 120, 150, 180 and 210 post-insemination) in non-aborting cows or until the time of abortion detection in aborting cows. General lineal models (GLM) repeated measures anova revealed the different behaviour of PAG-1 and PAG-2, and significant effects of Neospora seropositivity, cool season and twin pregnancy on plasma PAG-2 concentrations throughout gestation (between-subject effects). In addition, based on the odds ratios, the likelihood of abortion increased in Neospora-seropositive cows (by a factor of 7.0) compared to seronegative animals and decreased in cows with a high plasma PAG-2 concentration (>4.5 ng/ml) on Day 120 of pregnancy (by a factor of 0.24), compared to the remaining cows. In conclusion, there is a relationship between plasma PAG-2 concentrations and the risk of abortion in Neospora-infected dairy cows. Thus, plasma PAG concentrations measured using anti-boPAG-2 antiserum on Day 120 of gestation could serve as an indicator of the abortion risk in N. caninum infected animals; values <4.5 ng/ml indicating a high risk of abortion in chronically infected animals.
Authors:
I García-Ispierto; S Almería; B Serrano; Nm de Sousa; Jf Beckers; F López-Gatius
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-12-10
Journal Detail:
Title:  Reproduction in domestic animals = Zuchthygiene     Volume:  -     ISSN:  1439-0531     ISO Abbreviation:  Reprod. Domest. Anim.     Publication Date:  2012 Dec 
Date Detail:
Created Date:  2012-12-11     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9015668     Medline TA:  Reprod Domest Anim     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
© 2012 Blackwell Verlag GmbH.
Affiliation:
Department of Animal Production, University of Lleida, Lleida, Spain.
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