Fetal kidney programming by severe food restriction: effects on structure, hormonal receptor expression and urinary sodium excretion in rats

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dc.contributor.authorVaccari, Barbara [UNESP]
dc.contributor.authorMesquita, Flavia F.
dc.contributor.authorGontijo, Jose A. R.
dc.contributor.authorBoer, Patricia A. [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade Estadual de Campinas (UNICAMP)
dc.date.accessioned2015-10-21T13:11:40Z
dc.date.available2015-10-21T13:11:40Z
dc.date.issued2015-03-01
dc.description.abstractIntroduction: The present study investigates, in 23-day-old and adult male rats, the effect of severe food restriction in utero on blood pressure (BP), and its association with nephron structure and function changes, angiotensin II (AT1R/AT2R), glucocorticoid (GR) and mineralocorticoid (MR) receptor expression.Materials and methods: The daily food supply to pregnant rats was measured and one group (n=15) received normal quantity of food (NF) while the other received 50% of that (FR50%) (n=15). Kidneys were processed to AT1R, AT2R, MR, and GR immunolocalization and for western blotting analysis. The renal function was estimated by creatinine and lithium clearances in 12-week-old offspring.Results: By stereological analyses, FR50% offspring present a reduction of nephron numbers (35%) with unchanged renal volume. Expression of AT1R and AT2R was significantly decreased in FR50% while the expression of GR and MR increased in FR50%. We also verified a pronounced decrease in urinary sodium excretion accompanied by increased BP in 12-week-old FR50% offspring.Conclusion: The current data suggest that changes in renal function are conducive to excess sodium tubule reabsorption, and this might potentiate the programming of adult hypertension. It is plausible to arise in the current study an association between decreasing natriuresis, reciprocal changes in renal AngII and steroid receptors with the hypertension development found in FR50% compared with age-matched NF offspring.en
dc.description.affiliationSao Paulo State Univ, Dept Morphol, Botucatu, SP, Brazil
dc.description.affiliationUniv Estadual Campinas, Sch Med, Dept Internal Med, Campinas, SP, Brazil
dc.description.affiliationUnespSao Paulo State Univ, Dept Morphol, Botucatu, SP, Brazil
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipIdFAPESP: 2005/54362-4
dc.description.sponsorshipIdFAPESP: 2009/02719-7
dc.description.sponsorshipIdFAPESP: 2010/52696-0
dc.format.extent33-46
dc.identifierhttp://jra.sagepub.com/content/16/1/33
dc.identifier.citationJournal Of The Renin-angiotensin-aldosterone System, v. 16, n. 1, p. 33-46, 2015.
dc.identifier.doi10.1177/1470320313481081
dc.identifier.issn1470-3203
dc.identifier.lattes5640455006625677
dc.identifier.urihttp://hdl.handle.net/11449/128629
dc.identifier.wosWOS:000350874800005
dc.language.isoeng
dc.publisherSage Publications Ltd
dc.relation.ispartofJournal Of The Renin-angiotensin-aldosterone System
dc.relation.ispartofjcr1.197
dc.relation.ispartofsjr0,520
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectFetal programmingen
dc.subjectArterial hypertensionen
dc.subjectSevere food restrictionen
dc.subjectRenal functionen
dc.titleFetal kidney programming by severe food restriction: effects on structure, hormonal receptor expression and urinary sodium excretion in ratsen
dc.typeArtigo
dcterms.licensehttp://www.uk.sagepub.com/aboutus/openaccess.htm
dcterms.rightsHolderSage Publications Ltd
unesp.author.lattes5640455006625677
unesp.author.orcid0000-0002-4658-385X[3]
unesp.author.orcid0000-0002-1196-2606[4]
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Biociências, Botucatupt

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