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Curcumin protects against the age-related hearing loss by attenuating apoptosis and senescence via activating Nrf2 signaling in cochlear hair cells
This study is the first to demonstrate that curcumin can prevent oxidative stress-induced auditory hair cell degeneration through Nrf2 activation, highlighting its potential therapeutic value in preventing ARHL.PMID:37334787 | DOI:10.1016/j.bcp.2023.115575
Source: Biochemical Pharmacology - June 19, 2023 Category: Drugs & Pharmacology Authors: Ning Li Xirui Yan Weiling Huang Min Chu Yang Dong Haiyan Song Yinting Peng Jianrong Shi Qing Liu Source Type: research

Astragaloside IV attenuates podocyte apoptosis through ameliorating mitochondrial dysfunction by up-regulated Nrf2-ARE/TFAM signaling in diabetic kidney disease
In this study, using molecular docking we found that Astragaloside IV (AS-IV), an active ingredient from traditional formula of Huangqi decoction (HQD), exerted a higher potential to promote Nrf2 escape from Keap1-Nrf2 interaction via competitively bind to amino acid sites in Keap1. When podocyte exposed to high glucose (HG) stimulation, mitochondrial morphological alterations and podocyte apoptosis were presented and accompanied by Nrf2 and mitochondrial transcription factor A (TFAM) downregulation. Mechanistically, HG promoted a decrease in mitochondria-specific electron transport chain (ETC) complexes, ATP synthesis and...
Source: Free Radical Biology and Medicine - April 8, 2023 Category: Biology Authors: Qian Shen Ji Fang Hengjiang Guo Xue Su Bingbing Zhu Xingmei Yao Yunman Wang Aili Cao Hao Wang Li Wang Source Type: research

High uric acid aggravates apoptosis of lung epithelial cells induced by cigarette smoke extract through downregulating PRDX2 in chronic obstructive pulmonary disease
In conclusion, HUA aggravated CSE-induced cellular ROS levels and led to ROS-dependent mitochondrial dynamics disorder and apoptosis in MLE-12 cells through downregulating PRDX2.PMID:37003188 | DOI:10.1016/j.intimp.2023.110056
Source: International Immunopharmacology - April 1, 2023 Category: Allergy & Immunology Authors: Ya Dong Fei Han Yue Su Bei Sun Wei Zhao Congqing Pan Source Type: research

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

Melatonin alleviates doxorubicin-induced mitochondrial oxidative damage and ferroptosis in cardiomyocytes by regulating YAP expression
In this study, we established a Dox-induced cardiotoxicity model in H9c2 cardiomyocytes, zebrafish, and SD rats to explore the mechanism by which Mel alleviates Dox-induced cardiotoxicity. In vivo and in vitro experiments showed that Dox significantly decreased the viability of H9c2 cells, induced apoptosis, myocardial injury, and effectively up-regulated the expression of p-YAP but down-regulated the expression of YAP. Furthermore, we found that Dox significantly up-regulated the expression of ferroptosis-associated protein ACSL4 and down-regulated expression of GPX4. Interestingly, these effects of Dox were reversed foll...
Source: Toxicology and Applied Pharmacology - January 30, 2022 Category: Toxicology Authors: Xiao Sun Ping Sun Dong Zhen Xiangli Xu Li Yang Danni Fu Chengxi Wei Xiaofeng Niu Jiawei Tian Hairu Li Source Type: research

Astragalus Total Saponins Ameliorate Peritoneal Fibrosis by Promoting Mitochondrial Synthesis and Inhibiting Apoptosis
In conclusion, ATS treatment may be an effective therapeutic agent to inhibit high glucose-induced in peritoneal fibrosis through PGC-1[Formula: see text]-mediated apoptosis.PMID:34983328 | DOI:10.1142/S0192415X22500094
Source: The American Journal of Chinese Medicine - January 5, 2022 Category: Complementary Medicine Authors: Zheng-Hong Li Rong Xu Jun Shi Man-Shu Yu Yu Zhong Wei-Ming He Li-Ping Cao Mei-Xiao Sheng Source Type: research

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