Prevention of hypertension with or without renin-angiotensin system inhibition precludes nephrin loss in the early stage of experimental diabetes mellitus

dc.creatorAmazonas, RB
dc.creatorSanita, RD
dc.creatorKawachi, H
dc.creatorde Faria, JBL
dc.date2007
dc.date2014-07-30T18:08:13Z
dc.date2015-11-26T16:30:55Z
dc.date2014-07-30T18:08:13Z
dc.date2015-11-26T16:30:55Z
dc.date.accessioned2018-03-28T23:11:59Z
dc.date.available2018-03-28T23:11:59Z
dc.identifierNephron Physiology. Karger, v. 107, n. 2, n. P57, n. P64, 2007.
dc.identifier1660-2137
dc.identifierWOS:000253452800003
dc.identifier10.1159/000108642
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/70256
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/70256
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1270084
dc.descriptionBackground and Aims: Several lines of clinical evidence support the concept that the reduction of blood pressure may be useful in the prevention of diabetic kidney disease. In young diabetic spontaneously hypertensive rats (SHR), prevention of hypertension reduces several early renal abnormalities including albuminuria. However, the contribution of nephrin loss to albuminuria in this early stage of experimental diabetes is unknown. Therefore, we investigated whether elevation of albuminuria in young diabetic SHR is associated with nephrin loss, and if prevention of hypertension, with or without inhibition of the renin-angiotensin system, precludes these abnormalities. Methods: Diabetes was induced by streptozotocin injection in 4-week-old still normotensive SHR and their genetically normotensive control, Wistar-Kyoto rats. Diabetic SHR were randomized for no treatment, or treatment with captopril, losartan, or triple therapy (hydrochlorothiazide, reserpine and hydralazine) for 20 days. Results: The increase in systolic blood pressure was equally prevented by all treatments. Albuminuria was higher in diabetic SHR and similarly reduced (p < 0.05) by captopril, losartan, and triple therapy. Glomerular expression of nephrin was significantly reduced in diabetic SHR in comparison with non-diabetic controls. The antihypertensive treatment prevented the reduction in glomerular expression of nephrin. Conclusions: These results demonstrate that the loss of nephrin is associated with albuminuria in a model of genetic hypertension and diabetes, and that the prevention of development of hypertension restores nephrin and prevents albuminuria. This finding suggests a crucial role of blood pressure in diabetes as determinant of nephrin expression and albuminuria. Copyright (C) 2007 S. Karger AG, Basel.
dc.description107
dc.description2
dc.descriptionP57
dc.descriptionP64
dc.languageen
dc.publisherKarger
dc.publisherBasel
dc.publisherSuíça
dc.relationNephron Physiology
dc.relationNephron Physiol.
dc.rightsfechado
dc.rightshttp://www.karger.com/Services/RightsPermissions
dc.sourceWeb of Science
dc.subjectSystolic Blood-pressure
dc.subjectGenetic-hypertension
dc.subjectMicrovascular Complications
dc.subjectNephropathy
dc.subjectAlbuminuria
dc.subjectExpression
dc.subjectModel
dc.subjectRats
dc.subjectFibronectin
dc.subjectProteinuria
dc.titlePrevention of hypertension with or without renin-angiotensin system inhibition precludes nephrin loss in the early stage of experimental diabetes mellitus
dc.typeArtículos de revistas


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