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Condition: Obesity
Nutrition: Diets
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Total 82 results found since Jan 2013.
Islr regulates insulin sensitivity by interacting with Psma4 to control insulin receptor alpha levels in obese mice
Int J Biochem Cell Biol. 2023 Apr 26:106420. doi: 10.1016/j.biocel.2023.106420. Online ahead of print.ABSTRACTInsulin resistance is the leading cause of type 2 diabetes (T2D), and dysfunctional insulin receptor signaling is a major manifestation of this insulin resistance. In T2D, the corresponding insulin receptor levels are aberrantly down-regulated, which is one of the major factors underlying obesity-induced insulin resistance in adipose tissue. However, the precise mechanism of insulin receptor impairment in obese individuals remains unclear. In the current study, we established that immunoglobulin superfamily contain...
Source: The International Journal of Biochemistry and Cell Biology - April 28, 2023 Category: Biochemistry Authors: Yuying Zhang Miaomiao Lan Chang Liu Tongtong Wang Chuncheng Liu Sen Wu Qingyong Meng Source Type: research
Chaperonin counteracts diet-induced non-alcoholic fatty liver disease by aiding sirtuin 3 in the control of fatty acid oxidation
Conclusion/interpretationMitochondrial HSP60 promotes fatty acid oxidation while repressing mitochondrial stress and inflammation to ameliorate the development of NAFLD by preserving SIRT3 signalling. This study reveals the hepatoprotective effects of HSP60 and indicates that HSP60 could play a fundamental role in the development of therapeutics for NAFLD or type 2 diabetes.Graphical abstract
Source: Diabetologia - March 24, 2023 Category: Endocrinology 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
Induction of autophagy via the PI3K/Akt/mTOR signaling pathway by Pueraria flavonoids improves non-alcoholic fatty liver disease in obese mice
Biomed Pharmacother. 2022 Nov 13;157:114005. doi: 10.1016/j.biopha.2022.114005. Online ahead of print.ABSTRACTNon-alcoholic fatty liver disease (NAFLD) is the most common among lipid metabolism disorders. Autophagy plays an important role in lipid metabolism in NAFLD. Pueraria flavonoids, the main active ingredients of Pueraria lobata, exert antioxidant and anti-inflammatory effects. Herein, we report the potential lipid-lowering and anti-inflammatory effects of Pueraria flavonoids on NAFLD induced by a high-fat diet. In vivo and in vitro experiments showed that Pueraria flavonoids reduced intracellular lipid deposition by...
Source: Biomedicine and pharmacotherapy = Biomedecine and pharmacotherapie - November 16, 2022 Category: Drugs & Pharmacology Authors: Chunbin Sun Jin Zhang Jiong Hou Menglin Hui Hualong Qi Tong Lei Xiaoshuang Zhang Luxi Zhao Hongwu Du Source Type: research
Elimination of fibrin polymer formation or crosslinking, but not fibrinogen deficiency, is protective against diet-induced obesity and associated pathologies
CONCLUSIONS: Consistent with prior studies, Fib𝛾390-396A mice were significantly protected from increased adiposity, NAFLD, hypercholesterolemia and diabetes while Fib- and siFga-treated mice gained as much weight and developed obesity-associated pathologies identical to wildtype mice. FibAEK and FXIII- mice displayed an intermediate phenotype with partial protection from some obesity-associated pathologies. Results here indicate that fibrin(ogen) lacking αM β2 binding function offers substantial protection from obesity and associated disease that is partially recapitulated by preventing fibrin polymer formation or cr...
Source: Thrombosis and Haemostasis - September 16, 2022 Category: Hematology Authors: Woosuk S Hur Katharine C King Yesha N Patel Y-Van Nguyen Zimu Wei Yi Yang Lih Jiin Juang Jerry Leung Christian J Kastrup Alisa S Wolberg James P Luyendyk Matthew J Flick Source Type: research
Exercise inhibits JNK pathway activation and lipotoxicity via macrophage migration inhibitory factor in nonalcoholic fatty liver disease
In this study, we investigated the role of MIF in regulating JNK activation and high-fat fostered liver lipotoxicity during simultaneous exercise treatment. Fifteen mice were equally divided into three groups: normal diet, high-fat diet, and high-fat and exercise groups. High-fat feeding for extended periods elicited evident hyperlipemia, liver steatosis, and cell apoptosis in mice, with inhibited MIF and activated downstream MAPK kinase 4 phosphorylation and JNK. These effects were then reversed following prescribed swimming exercise, indicating that the advent of exercise could prevent liver lipotoxicity induced by lipid...
Source: Frontiers in Endocrinology - September 6, 2022 Category: Endocrinology Source Type: research
