dc.creatorMenegon, L.F.
dc.creatorFigueiredo, J.F.
dc.creatorGontijo, J.A.R.
dc.date1998-10-01
dc.date2014-07-17T15:04:58Z
dc.date2015-11-26T11:25:14Z
dc.date2014-07-17T15:04:58Z
dc.date2015-11-26T11:25:14Z
dc.date.accessioned2018-03-28T20:39:15Z
dc.date.available2018-03-28T20:39:15Z
dc.identifierBrazilian Journal of Medical and Biological Research. Associação Brasileira de Divulgação Científica, v. 31, n. 10, p. 1269-1273, 1998.
dc.identifier0100-879X
dc.identifierS0100-879X1998001000006
dc.identifier10.1590/S0100-879X1998001000006
dc.identifierhttp://dx.doi.org/10.1590/S0100-879X1998001000006
dc.identifierhttp://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1998001000006
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/24153
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/24153
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1233298
dc.descriptionSystemic metabolic acidosis is known to cause a decrease in salt and water reabsorption by the kidney. We have used renal lithium clearance to investigate the effect of chronic, NH4Cl-induced metabolic acidosis on the renal handling of Na+ in male Wistar-Hannover rats (200-250 g). Chronic acidosis (pH 7.16 ± 0.13) caused a sustained increase in renal fractional Na+ excretion (267.9 ± 36.4%), accompanied by an increase in fractional proximal (113.3 ± 3.6%) and post-proximal (179.7 ± 20.2%) Na+ and urinary K+ (163.4 ± 5.6%) excretion when compared to control and pair-fed rats. These differences occurred in spite of an unchanged creatinine clearance and Na+ filtered load. A lower final body weight was observed in the acidotic (232 ± 4.6 g) and pair-fed (225 ± 3.6 g) rats compared to the controls (258 ± 3.7 g). In contrast, there was a significant increase in the kidney weights of acidotic rats (1.73 ± 0.05 g) compared to the other experimental groups (control, 1.46 ± 0.05 g; pair-fed, 1.4 ± 0.05 g). We suggest that altered renal Na+ and K+ handling in acidotic rats may result from a reciprocal relationship between the level of metabolism in renal tubules and ion transport.
dc.description1269
dc.description1273
dc.languageen
dc.publisherAssociação Brasileira de Divulgação Científica
dc.relationBrazilian Journal of Medical and Biological Research
dc.rightsaberto
dc.sourceSciELO
dc.subjectrenal function
dc.subjectrenal sodium excretion
dc.subjectlithium clearance
dc.subjectmetabolic acidosis
dc.titleEffect of metabolic acidosis on renal tubular sodium handling in rats as determined by lithium clearance
dc.typeArtículos de revistas


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