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2016 ; 13
(1
): 661-8
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Valproate attenuates diabetic nephropathy through inhibition of endoplasmic
reticulum stress?induced apoptosis
#MMPMID26647757
Sun XY
; Qin HJ
; Zhang Z
; Xu Y
; Yang XC
; Zhao DM
; Li XN
; Sun LK
Mol Med Rep
2016[Jan]; 13
(1
): 661-8
PMID26647757
show ga
Previous studies have suggested that endoplasmic reticulum stress (ERS) is one of
the mechanisms responsible for the pathogenesis of diabetic nephropathy (DN).
Histone acetylation modification can regulate the transcription of genes and is
involved in the regulation of ERS. Valproate (VPA), a nonselective histone
deacetylase inhibitor, has been reported to have a protective role in kidney
tissue injury, however, whether VPA can prevent DN remains to be elucidated. In
the present study, it was found that VPA increases the expression of
glucose?regulated protein (GRP78) and reduces the protein expression of
C/EBP?homologous protein (CHOP), growth arrest and DNA?damage?inducible gene 153
and caspase?12 in a rat model of DN. VPA can reduce renal cell apoptosis and
alleviate proteinuria and alterations in serum creatinine. VPA also upregulates
the acetylation level of histone H4 in the promoter of GRP78 and downregulates
the acetylation level of histone H4 in the promoter of CHOP. Collectively, the
data indicate that VPA can relieve ERS and reduce renal cell apoptosis, and thus
attenuate renal injury in a rat model of DN by regulating the acetylation level
of histone H4 in ERS?associated protein promoters.