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Oxidative stress and inflammation are mediated via aryl hydrocarbon receptor signalling in idiopathic membranous nephropathy
Free Radic Biol Med. 2023 Jul 12:S0891-5849(23)00543-9. doi: 10.1016/j.freeradbiomed.2023.07.014. Online ahead of print.ABSTRACTMembranous nephropathy (MN) patients are diagnosed by the presence of phospholipase A2 receptor (PLA2R) before they progress to renal failure. However, the subepithelium-like immunocomplex deposit-mediated downstream molecular pathways are poorly understood. The aryl hydrocarbon receptor (AHR), NF-ƙB and Nrf2 pathways play central roles in the pathogenesis and progression of chronic kidney disease. However, their mutual effects on MN require further examination. Thus, we investigated the effect o...
Source: Free Radical Biology and Medicine - July 14, 2023 Category: Biology Authors: Yan-Ni Wang Hua Miao Xiao-Yong Yu Yan Guo Wei Su Fei Liu Gang Cao Ying-Yong Zhao Source Type: research

Sirtuin 7 mitigates renal ferroptosis, fibrosis and injury in hypertensive mice by facilitating the KLF15/Nrf2 signaling
In conclusion, SIRT7 alleviates renal ferroptosis, lipid peroxidation, and partial EMT under hypertensive status by facilitating the KLF15/Nrf2 signaling, thereby mitigating renal fibrosis, injury and dysfunction. Targeting SIRT7 signaling serves as a promising strategy for hypertension and hypertensive renal injury.PMID:36334846 | DOI:10.1016/j.freeradbiomed.2022.10.320
Source: Free Radical Biology and Medicine - November 5, 2022 Category: Biology Authors: Xue-Ting Li Jia-Wei Song Zhen-Zhou Zhang Mi-Wen Zhang Li-Rong Liang Ran Miao Ying Liu Yi-Hang Chen Xiao-Yan Liu Jiu-Chang Zhong Source Type: research

Up-regulation of heme oxygenase-1 by celastrol alleviates oxidative stress and vascular calcification in chronic kidney disease
Free Radic Biol Med. 2021 Jun 23:S0891-5849(21)00385-3. doi: 10.1016/j.freeradbiomed.2021.06.020. Online ahead of print.ABSTRACTVascular calcification is very commonly observed in patients with chronic kidney disease (CKD), but there is no efficient therapy available. Oxidative stress plays critical roles in the progression of vascular calcification. Celastrol (Cel), a natural constituent derived from Chinese herbals, exhibits anti-oxidative stress activity. Here, we investigated the effect of celastrol on vascular calcification using vascular smooth muscle cells (VSMCs), arterial rings and CKD rats. Alizarin red staining ...
Source: Free Radical Biology and Medicine - June 26, 2021 Category: Biology Authors: Xiulin Yang An Chen Qingchun Liang Qianqian Dong Mingwei Fu Xiaoyu Liu Siyi Wang Yining Li Yuanzhi Ye Zirong Lan Jing-Song Ou Lihe Lu Jianyun Yan Source Type: research

HDAC9 is an epigenetic repressor of kidney angiotensinogen establishing a sex difference
ConclusionsThese results indicate that HDAC9 is a novel suppressing factor involved in AGT regulation in PTC, leading to low levels of intrarenal AGT in females. These findings will help to delineate mechanisms underlying sex differences in the development of hypertension and renin-angiotensin system (RAS) associated kidney injury.
Source: Biology of Sex Differences - May 30, 2017 Category: Biology Source Type: research

Brd4 inhibition attenuates unilateral ureteral obstruction-induced fibrosis by blocking TGF- β-mediated Nox4 expression
In conclusion, these results indicated that the inhibition of Brd4 might protect against renal fibrosis by blocking the TGF-β-Nox4-ROS-fibrosis axis, suggesting that Brd4 could be a promising therapeutic target. Graphical abstract
Source: Redox Biology - December 30, 2016 Category: Biology Source Type: research

Activation of AMPK by metformin inhibits TGF-β-induced collagen production in mouse renal fibroblasts
This study suggests that activation of AMPK might be a novel strategy for the treatment of chronic kidney disease (CKD) partially by inhibition of renal interstitial fibrosis (RIF).
Source: Life Sciences - March 4, 2015 Category: Biology Source Type: research