Progesterone supplementation during mid-gestation increases the risk of abortion in Neospora-infected dairy cows with high antibody titres

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dc.contributor.authorBech Sàbat, Gregori
dc.contributor.authorLópez Gatius, Fernando
dc.contributor.authorSantolaria Blasco, Pilar
dc.contributor.authorGarcía Ispierto, Irina
dc.contributor.authorPabón, M.
dc.contributor.authorNogareda, Carmina
dc.contributor.authorYániz Pérez de Albéniz, Jesús
dc.contributor.authorAlmería, S.
dc.date.accessioned2016-11-15T12:23:31Z
dc.date.embargoEndDate2025-01-01
dc.date.issued2007
dc.description.abstractProgesterone has been reported to reduce Th1 responses during pregnancy. Thus, given that an excessive Th1 response could lead to abortion in Neospora-infected dairy cows, we hypothesized a reduction in abortion risk following progesterone supplementation during the mid-gestation period in these animals. Seropositive animals were assigned on day 120 of gestation to a Control (n = 33) or Treatment (n = 34) group. Treatment consisted of progesterone supplementation by fitting a progesterone releasing intravaginal device containing 1.55 g of progesterone for 28 days. Mean Neospora caninum antibody titres tested by ELISA on days 40, 90 and 120 of gestation were used to classify the cows as showing high (30 units) or low (<30 units) titration. Abortion rate showed a significant increase (P < 0.01) in the Treatment group (35%) compared to the Control (9%). Using logistic regression procedures, there was a significant (P < 0.0001) interaction between progesterone treatment and antibody titration. Progesterone-treated cows with a high antibody titre showed a likelihood of abortion 14.3 times higher than those not treated, while in cows with low antibody titres, exogenous progesterone had not effect. Our results do not support our starting hypothesis and suggest that progesterone supplementation in cows with high N. caninum antibody titres increases the risk of abortion possibly by affecting cell-mediated immune responses.ca_ES
dc.description.sponsorshipThis study received financial support from the Spanish CICYT, grants AGL2004- 06103-C02-01/GAN and AGL2004-06103-C02-02/ GAN. García-Ispierto and Bech-Sàbat were supported by the FPU grants from the Ministerio de Educación y Ciencia, AP-2004-4279 and AP-2005-5378, respectively.ca_ES
dc.identifier.doihttps://doi.org/10.1016/j.vetpar.2006.11.018
dc.identifier.idgrec010883
dc.identifier.issn0304-4017
dc.identifier.urihttp://hdl.handle.net/10459.1/58514
dc.language.isoengca_ES
dc.publisherElsevierca_ES
dc.relationinfo:eu-repo/grantAgreement/MEC//AGL2004-06103-C02-01/ES/ca_ES
dc.relationinfo:eu-repo/grantAgreement/MEC//AGL2004-06103-C02-02/ES/ca_ES
dc.relation.isformatofReproducció del document publicat a https://doi.org/10.1016/j.vetpar.2006.11.018ca_ES
dc.relation.ispartofVeterinary Parasitology, 2007, vol. 145, núm. 1-2, p. 164-167ca_ES
dc.rights(c) Elsevier B.V., 2006ca_ES
dc.rights.accessRightsinfo:eu-repo/semantics/restrictedAccessca_ES
dc.subjectNeospora caninumca_ES
dc.subjectProgesterone supplementationca_ES
dc.subjectAbortionca_ES
dc.subjectDairy cattleca_ES
dc.titleProgesterone supplementation during mid-gestation increases the risk of abortion in Neospora-infected dairy cows with high antibody titresca_ES
dc.typearticleca_ES
dc.type.versionpublishedVersionca_ES
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