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dc.contributor.author박준성-
dc.date.accessioned2019-12-01T19:05:34Z-
dc.date.available2019-12-01T19:05:34Z-
dc.date.issued2017-11-
dc.identifier.citationKIDNEY & BLOOD PRESSURE RESEARCH, v. 42, no. 6, page. 951-960en_US
dc.identifier.issn1420-4096-
dc.identifier.issn1423-0143-
dc.identifier.urihttps://www.karger.com/Article/FullText/485332-
dc.identifier.urihttp://repository.hanyang.ac.kr/handle/20.500.11754/116119-
dc.description.abstractBackground/Aims: Altered pressure natriuresis is an important mechanism of hypertension, but it remains elusive at the molecular level. We hypothesized that in the kidney, tight junctions (TJs) may have a role in pressure natriuresis because paracellular NaCl transport affects interstitial hydrostatic pressure. Methods: To assess the association of salt-sensitive hypertension with altered renal TJ protein expression, Dahl salt-sensitive (SS) and salt-resistant (SR) rats were put on an 8% NaCl-containing rodent diet for 4 weeks. Systolic blood pressure (SBP) and urine NaCl excretion were measured weekly, and kidneys were harvested for immunoblotting and quantitative PCR analysis at the end of the animal experiments. Results: SBP was significantly higher in SS rats than in SR rats during the first to fourth weeks of the animal experiments. During the first and second week, urinary NaCl excretion was significantly lower in SS rats as compared with SR rats. However, the difference between the two groups vanished at the third and fourth weeks. In the kidney, claudin-4 protein and mRNA were significantly increased in SS rats as compared with SR rats. On the other hand, occludin protein and mRNA were significantly decreased in SS rats as compared with SR rats. The expression of claudin-2, claudin-7, and claudin-8 did not vary significantly between the two groups. Conclusions: In SS rats, SS hypertension was associated with differential changes in renal TJ protein expression. Both upregulation of claudin-4 and downregulation of occludin might increase paracellular NaCl transport in the kidney, resulting in impaired pressure natriuresis in SS rats. (c) 2017 The Author(s) Published by S. Karger AG, Baselen_US
dc.description.sponsorshipThis work was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (NRF-2013R1A1A2008924).en_US
dc.language.isoen_USen_US
dc.publisherKARGERen_US
dc.subjectClaudin-4en_US
dc.subjectDahl salt-sensitive ratsen_US
dc.subjectHypertensionen_US
dc.subjectOccludinen_US
dc.subjectPressure natriuresisen_US
dc.titleAlteration of Tight Junction Protein Expression in Dahl Salt-Sensitive Rat Kidneyen_US
dc.typeArticleen_US
dc.relation.no6-
dc.relation.volume42-
dc.identifier.doi10.1159/000485332-
dc.relation.page951-960-
dc.relation.journalKIDNEY & BLOOD PRESSURE RESEARCH-
dc.contributor.googleauthorJo, Chor Ho-
dc.contributor.googleauthorKim, Sua-
dc.contributor.googleauthorOh, Il Hwan-
dc.contributor.googleauthorPark, Joon-Sung-
dc.contributor.googleauthorKim, Gheun-Ho-
dc.relation.code2017002734-
dc.sector.campusS-
dc.sector.daehakCOLLEGE OF MEDICINE[S]-
dc.sector.departmentDEPARTMENT OF MEDICINE-
dc.identifier.pidsjpjoon-


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