High sodium intake during postnatal phases induces an increase in arterial blood pressure in adult rats

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dc.contributor.authorMoreira, M. C. S.
dc.contributor.authorSilva, E. F. da
dc.contributor.authorSilveira, Ludmila de Lima
dc.contributor.authorPaiva, Y. B. de
dc.contributor.authorCastro, C. H. de
dc.contributor.authorFreiria-Oliveira, André Henrique
dc.contributor.authorRosa, Daniel Alves
dc.contributor.authorFerreira, P. M.
dc.contributor.authorXavier, Carlos Henrique
dc.contributor.authorColombari, Eduardo [UNESP]
dc.contributor.authorPedrino, Gustavo R.
dc.contributor.institutionUniversidade Federal de Goiás (UFG)
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2015-08-06T16:12:56Z
dc.date.available2015-08-06T16:12:56Z
dc.date.issued2014
dc.description.abstractEpigenetic studies suggest that diseases that develop in adulthood are related to certain conditions to which the individual is exposed during the initial stages of life. Experimental evidence has demonstrated that offspring born to mothers maintained on high-Na diets during pregnancy have higher mean arterial pressure (MAP) in adulthood. Although these studies have demonstrated the importance of prenatal phases to hypertension development, no evidence regarding the role of high Na intake during postnatal phases in the development of this pathology has been reported. Therefore, in the present study, the effects of Na overload during childhood on induced water and Na intakes and on cardiovascular parameters in adulthood were evaluated. Experiments were carried out in two groups of 21-d-old rats: experimental group, maintained on hypertonic saline (0·3 M-NaCl) solution and food for 60 d, and control group, maintained on tap water and food. Later, both groups were given water and food for 15 d (recovery period). After the recovery period, chronic cannulation of the right femoral artery was performed in unanaesthetised rats to record baseline MAP and heart rate (HR). The experimental group was found to have increased basal MAP (98·6 (SEM 2·6) v. 118·3 (SEM 2·7) mmHg, P,0·05) and HR (365·4 (SEM 12·2) v. 398·2 (SEM 7·5) beats per min, P,0·05). There was a decrease in the baroreflex index in the experimental group when compared with that in the control group. A water and Na intake test was performed using furosemide. Na depletion was found to induce an increase in Na intake in both the control and experimental groups (12·1 (SEM 0·6) ml and 7·8 (SEM 1·1), respectively, P , 0·05); however, this increase was of lower magnitude in the experimental group. These results demonstrate that postnatal Na overload alters behavioural and cardiovascular regulation in adulthood.en
dc.description.affiliationUniversidade Federal de Goiás, Department of Physiological Sciences, Center for Neuroscience and Cardiovascular Physiology, Goiânia, Goiás, Brazil
dc.description.affiliationUniversidade de São Paulo, Department of Physiology, School of Medicine of Ribeirão Preto, Ribeirão Preto, São Paulo, Brazil
dc.description.affiliationUniversidade Estadual Paulista Júlio de Mesquita Filho, Departamento de Fisiologia e Patologia, Departamento de Fisiologia e Patologia, Araraquara, Rua Humaitá, 1680, Centro, CEP 14801903, SP, Brasil
dc.description.affiliationUnespUniversidade Estadual Paulista Júlio de Mesquita Filho, Departamento de Fisiologia e Patologia, Departamento de Fisiologia e Patologia, Araraquara, Rua Humaitá, 1680, Centro, CEP 14801903, SP, Brasil
dc.description.sponsorshipCoordenadoria de Aperfeiçoamento em Pesquisa (CAPES)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipFundação de Amparo a Pesquisa do Estado de Goiás (FAPEG)
dc.description.sponsorshipIdCNPq: 477832/2010-5
dc.description.sponsorshipIdCNPq: 483411/2012-4
dc.description.sponsorshipIdFAPEG: 200910267000352
dc.format.extent1923-1932
dc.identifierhttp://journals.cambridge.org/action/displayAbstract?fromPage=online&aid=9446837&fileId=S0007114514002918
dc.identifier.citationBritish Journal of Nutrition, v. 112, n. 12, p. 1923-1932, 2014.
dc.identifier.doi10.1017/s0007114514002918
dc.identifier.issn1475-2662
dc.identifier.lattes4544450092427426
dc.identifier.urihttp://hdl.handle.net/11449/125725
dc.language.isoeng
dc.relation.ispartofBritish Journal of Nutrition
dc.relation.ispartofsjr1,612
dc.rights.accessRightsAcesso restrito
dc.sourceCurrículo Lattes
dc.subjectHypertensionen
dc.subjectWater intakeen
dc.subjectSodium intakeen
dc.subjectPostnatal perioden
dc.titleHigh sodium intake during postnatal phases induces an increase in arterial blood pressure in adult ratsen
dc.typeArtigo
unesp.author.lattes4544450092427426[10]
unesp.author.orcid0000-0002-1395-4036[10]
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Odontologia, Araraquarapt
unesp.departmentFisiologia e PatologiaFisiologia e Patologiapt

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