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Astragalin ameliorates renal injury in diabetic mice by modulating mitochondrial quality control via AMPK-dependent PGC1 α pathway
In this study, we investigated the therapeutic effects of AG against renal injury in streptozocin (STZ)-induced diabetic mouse model. Diabetic mice were orally administered AG (5, 10 mg·kg-1·d-1) for 4 weeks. We showed that AG treatment greatly improved the proteinuria and ameliorated renal pathological damage without affecting the elevated blood glucose in diabetic mice. Furthermore, AG treatment significantly suppressed highly activated ALR2, and reduced oxidative stress in the kidney of diabetic mice and in high glucose and lipids-stimulated HK2 cells in vitro. We demonstrated that AG treatment modulated mitochondrial...
Source: Acta Pharmacologica Sinica - March 1, 2023 Category: Drugs & Pharmacology Authors: Meng-Yao Sun Hui-Jing Ye Chen Zheng Zi-Jie Jin Yan Yuan Hong-Bo Weng Source Type: research

Wogonoside attenuates liver fibrosis by triggering hepatic stellate cell ferroptosis through SOCS1/P53/SLC7A11 pathway
In this study, we attempted to investigate a novel mechanism by which WG mitigates liver fibrosis by inducing ferroptosis in hepatic stellate cells (HSCs). A CCl4 -induced mouse liver fibrosis model and a rat HSC line were employed for in vivo and in vitro experiments, both treated with WG. Firstly, the levels of the fibrotic markers α-smooth muscle actin (α-SMA) and α1(I)collagen (COL1α1) were effectively decreased by WG in CCl4 -induced mice and HSC-T6 cells. Additionally, mitochondrial condensation and mitochondrial ridge breakage were observed in WG-treated HSC-T6 cells. Furthermore, ferroptotic events including de...
Source: Cell Research - July 11, 2022 Category: Cytology Authors: Guofang Liu Can Wei Siyu Yuan Zhe Zhang Jiahao Li Lijun Zhang Guokai Wang Ling Fang Source Type: research

Naringenin Produces Neuroprotection Against LPS-Induced Dopamine Neurotoxicity via the Inhibition of Microglial NLRP3 Inflammasome Activation
Conclusions: This study demonstrated that NAR targeted microglial NLRP3 inflammasome to protect DA neurons against LPS-induced neurotoxicity. These findings suggest NAR might hold a promising therapeutic potential for PD. Background Parkinson's disease (PD) is the second most prevalent central nervous system (CNS) degenerative disease. It is characterized by slow and progressive loss of dopamine (DA) neurons in the midbrain substantia nigra (SN) with the accumulation of α-synuclein in Lewy bodies and neuritis (1). Although the etiology of PD remains unclear, amounts of studies have suggested that ne...
Source: Frontiers in Immunology - April 30, 2019 Category: Allergy & Immunology Source Type: research

Bavachin induces apoptosis through mitochondrial regulated ER stress pathway in HepG2 cells.
Abstract As a traditional herbal medicine, the fruits of Psoralea corylifolia L. (FP) have been widely used for the treatment of various skin diseases for hundred years. Recently, the emerging FP-induced toxic effects, especially hepatotoxicity, in clinic are getting the public's attention. However, its exact toxic components and mechanisms underlying remain unclear. Bavachin, one of flavonoids in FP, has been documented as a hepatotoxic substance, and the present study aimed to determine the toxicity caused by bavachin and the possible toxic mechanisms involved using HepG2 cells. Our results showed that bavachin ...
Source: Biological and Pharmaceutical Bulletin - November 29, 2017 Category: Drugs & Pharmacology Authors: Yang Y, Tang X, Hao F, Ma Z, Wang Y, Wang L, Gao Y Tags: Biol Pharm Bull Source Type: research

Dihydromyricetin inhibits NLRP3 inflammasome ‐dependent pyroptosis by activating the Nrf2 signaling pathway in vascular endothelial cells
Abstract Increasing evidence demonstrates that pyroptosis, pro‐inflammatory programmed cell death, is linked to atherosclerosis; however, the underlying mechanisms remain to be elucidated. Dihydromyricetin (DHM), a natural flavonoid, was reported to exert anti‐oxidative and anti‐inflammatory bioactivities. However, the effect of DHM on atherosclerosis‐related pyroptosis has not been studied. In the present study, palmitic acid (PA) treatment led to pyroptosis in human umbilical vein endothelial cells (HUVECs), as evidenced by caspase‐1 activation, LDH release, and propidium iodide‐positive staining; enhanced th...
Source: BioFactors - September 10, 2017 Category: Biochemistry Authors: Qin Hu, Ting Zhang, Long Yi, Xi Zhou, Mantian Mi Tags: Research Communication Source Type: research