• Filter By:
• Specialty
• Source
• Condition
• Cancer
• Infectious Disease
• Drug
• Training
• Management
• Procedure
• Therapy
• Vaccine
• Nutrition
• Country

AMPK negatively regulates RANKL-induced osteoclast differentiation by controlling oxidative stress
This study aimed to clarify the mechanistic connection between AMPK and osteoclast differentiation, and the potential role of AMPK in the anti-resorptive effects of several phytochemicals. We found that receptor activator of nuclear factor-kappa B (NF-κB) ligand (RANKL)-induced osteoclast differentiation, osteoclastic gene expression, and activation of mitogen-activated protein kinase (MAPK) and NF-κB were promoted in cells transfected with AMPK siRNA. AMPK knockdown led to defective synthesis of heme oxygenase-1, an antioxidant enzyme, and the upstream mediator, nuclear factor erythroid-2-related factor 2. Furthermore, ...
Source: Free Radical Biology and Medicine - June 3, 2023 Category: Biology Authors: Miori Tanaka Hirofumi Inoue Nobuyuki Takahashi Mariko Uehara Source Type: research

STAT3 signaling promotes cardiac injury by upregulating NCOA4-mediated ferritinophagy and ferroptosis in high-fat-diet fed mice
In this study, we found that oleic acid/palmitic acid (OA/PA) increased the level of ferroptotic events including iron and ROS accumulation, upregulation of PTGS2 mRNA and protein levels, reduced SOD and GSH levels, and significant mitochondrial damage in H9C2 cells, which could be reversed by the ferroptosis inhibitor ferrostatin-1 (Fer-1). Intriguingly, we found that the autophagy inhibitor 3-methyladenine mitigated OA/PA-induced ferritin downregulation, iron overload and ferroptosis. OA/PA increased the protein level of NCOA4. Knockdown of NCOA4 by SiRNA partly reversed the reduction in ferritin, mitigated iron overload...
Source: Free Radical Biology and Medicine - March 20, 2023 Category: Biology Authors: Mengying Zhu Lulu Peng Shengqi Huo Dewei Peng Junyi Gou Wei Shi Jingwen Tao Tao Jiang Yue Jiang Qian Wang Bingyu Huang Lintong Men Sheng Li Jiagao Lv Li Lin Source Type: research

Caveolin-1 alleviates acetaminophen-induced vascular oxidative stress and inflammation in non-alcoholic fatty liver disease
In conclusion, our findings confirmed that CAV1 exerts a protective effect against vascular injury by inhibiting oxidative stress and inflammation through the PKC/MAPK pathway. Therefore, restoration of CAV1 may have clinical benefits in reducing APAP-induced vascular damage in NAFLD patients.PMID:36596386 | DOI:10.1016/j.freeradbiomed.2022.12.095
Source: Free Radical Biology and Medicine - January 3, 2023 Category: Biology Authors: Dongdong Fu Shuai Wu Xiangfu Jiang Tingyu You Yu Li Jiao Xin Xiaowen Feng Jiagen Wen Yan Huang Chengmu Hu Source Type: research

C-C Motif Ligand 8 promotes atherosclerosis via NADPH Oxidase 2/Reactive Oxygen Species-induced endothelial permeability Increase
This study might contribute to a deeper understanding of the connection between chemokines and atherosclerosis.PMID:33741452 | DOI:10.1016/j.freeradbiomed.2021.02.022
Source: Free Radical Biology and Medicine - March 20, 2021 Category: Biology Authors: Song Xue Hanfei Tang Gefei Zhao Chao Fang Yang Shen Dong Yan Ye Yuan Weiguo Fu Zhenyu Shi Xiao Tang Daqiao Guo Source Type: research

S-1-propenylmercaptocysteine protects murine hepatocytes against oxidative stress via persulfidation of Keap1 and activation of Nrf2.
This study provides insights on the potential of CySSPe as an onion-derived dietary agent that modulates redox homeostasis and combats oxidative stress. PMID: 31349040 [PubMed - as supplied by publisher]
Source: Free Radical Biology and Medicine - July 22, 2019 Category: Biology Authors: Tocmo R, Parkin K Tags: Free Radic Biol Med Source Type: research