Remote ischemic preconditioning on neovascularization and follicle viability on ovary autotransplantation in rats

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dc.contributor.authorDarnous, L. L. [UNIFESP]
dc.contributor.authorSilva, S. M. [UNIFESP]
dc.contributor.authorSimoes, R. S. [UNIFESP]
dc.contributor.authorMorello, Ricardo José [UNIFESP]
dc.contributor.authorCarbone, A. P. F. [UNIFESP]
dc.contributor.authorSimoes, M. J. [UNIFESP]
dc.contributor.authorMontero, E. F. S. [UNIFESP]
dc.contributor.institutionUniversidade Federal de São Paulo (UNIFESP)
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.date.accessioned2016-01-24T13:49:43Z
dc.date.available2016-01-24T13:49:43Z
dc.date.issued2008-04-01
dc.description.abstractPurpose. Verify the optimum remote vascular occlusion time to reduce ovarian injury in autologous transplants in rats.Methods. Twenty-four adult female rats were assigned to four groups: GC (control group): bilateral oophorectomy followed by ovary transplant; GIPC (ischemic preconditioning group): remote ischemic preconditioning at the iliac artery for 5, 10, and 15 minutes (GIPC-5, GIPC-20, and GIPC-15) previous to bilateral oophorectomy and ovarian transplantation. the right ovary was fixed in the retroperitoneum. Euthanasia was performed 4 days after the surgical procedure. the follicles were counted and classified as developing versus atretic. the immunohistochemical assay identified vascular factor of endothelial growth (VEGF) in the ovarian stroma and assessed the proliferation capacity by means of the Ki-67 in the ovarian follicles.Results. Every group showed an inflammatory infiltrate, luteous body, and ovarian follicles in several phases of development. the ischemic preconditioning groups displayed greater amounts of viable ovarian follicles and increased vascularization and vasodilatation than the control group. GIPC-15 showed the highest amount of viable follicles compared to the others (P < .05 GIPC-15 vs GC; GIPC-15 vs GIPC-5). More VEGF-labeled cells were observed in GIPC-10 than the control group (P < .05, GIPC-10 vs GC). the proliferation index assessed by Ki-67 marking showed GC: 80%; GIPC-5: 76%; GIPC-10: 67%; and GIPC-15: 64% (P > .05).Conclusions. the PCI-15 cohort seem to be the most adequate timing to achieve functional support and preservation of a greater number of viable ovarian follicles.en
dc.description.affiliationUniversidade Federal de São Paulo, Dept Surg, São Paulo, Brazil
dc.description.affiliationUniversidade Federal de São Paulo, Dept Morphol, São Paulo, Brazil
dc.description.affiliationUniv São Paulo, Dept Gynecol, São Paulo, Brazil
dc.description.affiliationUnifespUniversidade Federal de São Paulo, Dept Surg, São Paulo, Brazil
dc.description.affiliationUnifespUniversidade Federal de São Paulo, Dept Morphol, São Paulo, Brazil
dc.description.sourceWeb of Science
dc.format.extent861-864
dc.identifierhttp://dx.doi.org/10.1016/j.transproceed.2008.02.065
dc.identifier.citationTransplantation Proceedings. New York: Elsevier B.V., v. 40, n. 3, p. 861-864, 2008.
dc.identifier.doi10.1016/j.transproceed.2008.02.065
dc.identifier.issn0041-1345
dc.identifier.urihttp://repositorio.unifesp.br/handle/11600/30576
dc.identifier.wosWOS:000255527600060
dc.language.isoeng
dc.publisherElsevier B.V.
dc.relation.ispartofTransplantation Proceedings
dc.rightsinfo:eu-repo/semantics/restrictedAccess
dc.rights.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dc.titleRemote ischemic preconditioning on neovascularization and follicle viability on ovary autotransplantation in ratsen
dc.typeinfo:eu-repo/semantics/article
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