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2017 ; 7
(ä): 45952
Nephropedia Template TP
gab.com Text
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Twit Text #
English Wikipedia
Multiple Mechanisms are Involved in Salt-Sensitive Hypertension-Induced Renal
Injury and Interstitial Fibrosis
#MMPMID28383024
Wei SY
; Wang YX
; Zhang QF
; Zhao SL
; Diao TT
; Li JS
; Qi WR
; He YX
; Guo XY
; Zhang MZ
; Chen JY
; Wang XT
; Wei QJ
; Wang Y
; Li B
Sci Rep
2017[Apr]; 7
(ä): 45952
PMID28383024
show ga
Salt-sensitive hypertension (SSHT) leads to kidney interstitial fibrosis.
However, the potential mechanisms leading to renal fibrosis have not been well
investigated. In present study, Dahl salt-sensitive (DS) rats were divided into
three groups: normal salt diet (DSN), high salt diet (DSH) and high salt diet
treated with hydrochlorothiazide (HCTZ) (DSH?+?HCTZ). A significant increase in
systolic blood pressure (SBP) was observed 3 weeks after initiating the high salt
diet, and marked histological alterations were observed in DSH rats. DSH rats
showed obvious podocyte injury, peritubular capillary (PTC) loss, macrophage
infiltration, and changes in apoptosis and cell proliferation. Moreover,
Wnt/?-catenin signaling was significantly activated in DSH rats. However, HCTZ
administration attenuated these changes with decreased SBP. In addition,
increased renal and urinary Wnt4 expression was detected with time in DSH rats
and was closely correlated with histopathological alterations. Furthermore, these
alterations were also confirmed by clinical study. In conclusion, the present
study provides novel insight into the mechanisms related to PTC loss, macrophage
infiltration and Wnt/?-catenin signaling in SSHT-induced renal injury and
fibrosis. Therefore, multi-target therapeutic strategies may be the most
effective in preventing these pathological processes. Moreover, urinary Wnt4 may
be a noninvasive biomarker for monitoring renal injury after hypertension.
|Animals
[MESH]
|Antihypertensive Agents/pharmacology
[MESH]
|Blood Pressure/drug effects
[MESH]
|Capillaries/drug effects/metabolism
[MESH]
|Fibrosis/etiology
[MESH]
|Hydrochlorothiazide/pharmacology
[MESH]
|Hypertension/*complications/physiopathology/prevention & control
[MESH]
|Kidney Diseases/etiology/*pathology/prevention & control
[MESH]