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e-Article

High sodium diet converts renal proteoglycans into pro-inflammatory mediators in rats.
Document Type
article
Source
PLoS ONE, Vol 12, Iss 6, p e0178940 (2017)
Subject
Medicine
Science
Language
English
ISSN
1932-6203
Abstract
High dietary sodium aggravates renal disease by affecting blood pressure and by its recently shown pro-inflammatory and pro-fibrotic effects. Moreover, pro-inflammatory modification of renal heparan sulfate (HS) can induce tissue remodeling. We aim to investigate if high sodium intake in normotensive rats converts renal HS into a pro-inflammatory phenotype, able to bind more sodium and orchestrate inflammation, fibrosis and lymphangiogenesis.Wistar rats received a normal diet for 4 weeks, or 8% NaCl diet for 2 or 4 weeks. Blood pressure was monitored, and plasma, urine and tissue collected. Tissue sodium was measured by flame spectroscopy. Renal HS and tubulo-interstitial remodeling were studied by biochemical, immunohistochemical and qRT-PCR approaches.High sodium rats showed a transient increase in blood pressure (week 1; p