The action of oxytocin on the bone of senescent female rats

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dc.contributor.authorSantos, Luís Fernando Gadioli [UNESP]
dc.contributor.authorFernandes-Breitenbach, Fernanda [UNESP]
dc.contributor.authorSilva, Rafael Augusto Santos [UNESP]
dc.contributor.authorSantos, Damáris Raíssa [UNESP]
dc.contributor.authorPeres-Ueno, Melise Jacon [UNESP]
dc.contributor.authorErvolino, Edilson [UNESP]
dc.contributor.authorChaves-Neto, Antonio Hernandes [UNESP]
dc.contributor.authorDornelles, Rita Cássia Menegati [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.date.accessioned2022-05-01T15:46:12Z
dc.date.available2022-05-01T15:46:12Z
dc.date.issued2022-05-15
dc.description.abstractAims: This study verified the action of oxytocin (OT) as a preventive measure to control bone damage during aging in female rats. Main methods: Wistar rats received saline (0.15 mol/L/IP; Vehicle Group), Atosiban/AT (300 μg/Kg/IP; At Group), OT (134 μg/Kg/IP; Ot Group), or AT+OT (OT injections 5 min after AT; At+Ot Group), at 19 and 20 months of age. A functional test was performed immediately before and 30 days after the injections to analyze the animals' gait. Key findings: Animals in the At group had higher alkaline phosphatase (ALP) activity, lower cortical and trabecular thickness, fewer trabeculae, higher expression of tartrate-resistant acid phosphatase (TRAP) and lower osteocalcin (OCN), higher cortical porosity, and lower moment of inertia and bone strength at the femoral neck. OT administration increased lipidic peroxidation and plasma superoxide dismutase (SOD), and provided, in the femoral neck, lower expression of TRAP and higher OCN, greater cortical and trabecular thickness, a greater number of trabeculae, bone mineral density (BMD), higher inertia bone strength, and lower cortical porosity. At + Ot group showed great similarity with the vehicle group, higher SOD, and BMD. An increase in stride length and no increase in base width of 21-month-old animals were observed after OT, unlike animal's vehicle or AT. Significance: Endogenous OT plays an important role in the regulation of bone remodeling during periestropause, and exogenous OT stands out as a potential preventive intervention in this period to improve bone quality with functional repercussions, possibly providing better gait activity.en
dc.description.affiliationPrograma de Pós-Graduação Multicêntrico em Ciências Fisiológicas/SBFis/UNESP
dc.description.affiliationDepartment of Basic Sciences School of Dentistry São Paulo State University (UNESP), São Paulo
dc.description.affiliationUnespPrograma de Pós-Graduação Multicêntrico em Ciências Fisiológicas/SBFis/UNESP
dc.description.affiliationUnespDepartment of Basic Sciences School of Dentistry São Paulo State University (UNESP), São Paulo
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipIdFAPESP: 013/26779-4
dc.description.sponsorshipIdFAPESP: 2012/14464-6
dc.identifierhttp://dx.doi.org/10.1016/j.lfs.2022.120484
dc.identifier.citationLife Sciences, v. 297.
dc.identifier.doi10.1016/j.lfs.2022.120484
dc.identifier.issn1879-0631
dc.identifier.issn0024-3205
dc.identifier.scopus2-s2.0-85126560742
dc.identifier.urihttp://hdl.handle.net/11449/234280
dc.language.isoeng
dc.relation.ispartofLife Sciences
dc.sourceScopus
dc.subjectAging
dc.subjectAtosiban
dc.subjectFemale
dc.subjectFemur neck
dc.subjectOsteoporosis
dc.subjectOxytocin
dc.subjectPerimenopause
dc.titleThe action of oxytocin on the bone of senescent female ratsen
dc.typeArtigo

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