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AMP-activated protein kinase suppresses the expression of LXR/SREBP-1 signaling-induced ANGPTL8 in HepG2 cells
Publication date: 15 October 2015 Source:Molecular and Cellular Endocrinology, Volume 414 Author(s): Jinmi Lee, Seok-Woo Hong, Se Eun Park, Eun-Jung Rhee, Cheol-Young Park, Ki-Won Oh, Sung-Woo Park, Won-Young Lee ANGPTL8 is a liver-derived secretory protein that leads to elevated serum triglyceride and the level of circulating ANGPTL8 is strongly associated with obesity and diabetes. Here we investigated the mechanisms of activation and inhibition of ANGPTL8 expression in hepatocytes. The expression of ANGPTL8 was significantly increased in HepG2 cells exposed to palmitic acid, tunicamycin, or T0901317, and was r...
Source: Molecular and Cellular Endocrinology - August 8, 2015 Category: Endocrinology Source Type: research

Fatty Acid-Binding Protein 4 mediates apoptosis via endoplasmic reticulum stress in mesangial cells of diabetic nephropathy
Publication date: 15 August 2015 Source:Molecular and Cellular Endocrinology, Volume 411 Author(s): Fang Yao , Zhen Li , Takashi Ehara , Lin Yang , Dandan Wang , Lulu Feng , Yiming Zhang , Kun Wang , Yonghong Shi , Huijun Duan , Lianshan Zhang Type 2 diabetes is characterized by hyperglycemia and deregulated lipid metabolism with increased plasma non-esterified fatty acids (NEFA). Apoptosis of glomerular cells is a hallmark in diabetic glomerulosclerosis. Fatty acid-binding protein 4 (FABP4), a carrier protein for fatty acids, has been linked to diabetes and diabetic nephropathy (DN). Here we aimed to investigate the lin...
Source: Molecular and Cellular Endocrinology - June 26, 2015 Category: Endocrinology Source Type: research

Dihydromyricetin improves skeletal muscle insulin resistance by inducing autophagy via the AMPK signaling pathway
In conclusion, DHM improved SMIR by inducing autophagy via the activation of AMPK signaling pathway.
Source: Molecular and Cellular Endocrinology - March 20, 2015 Category: Endocrinology Source Type: research

Glycated albumin triggers fibrosis and apoptosis via an NADPH oxidase/Nox4-MAPK pathway-dependent mechanism in renal proximal tubular cells
In this study, we investigated the effects of GA on fibrosis and apoptosis of renal proximal tubular cells (NRK-52E) in vitro experiments. Our results showed that GA promoted α-SMA, fibronectin (FN) and TGF-β expressions in NRK-52E cells. GA also increased cell apoptosis and stimulated the expressions of pro-caspase 3/cleaved-caspase 3. GA overloading enhanced the phosphorylation of MAPK pathway. GA-induced α-SMA, FN, TGF-β and caspase 3 expressions were completely suppressed by the NADPH oxidase inhibitor apocynin (Apo), the reactive oxygen species (ROS) scavenger N-acetylcysteine (NAC) and the latent antioxidant Astr...
Source: Molecular and Cellular Endocrinology - March 10, 2015 Category: Endocrinology Source Type: research

Inhibition of prolyl hydroxylase 3 ameliorates cardiac dysfunction in diabetic cardiomyopathy
Publication date: 5 March 2015 Source:Molecular and Cellular Endocrinology, Volume 403 Author(s): Yanfei Xia , Luwei Gong , Hui Liu , Beibei Luo , Bo Li , Rui Li , Beibei Li , Mei Lv , Jinyu Pan , Fengshuang An Prolyl hydroxylase 3 (PHD3) is a member of the prolyl hydroxylases (PHDs) family and is induced by hypoxia. It plays a critical role in regulating the abundance of hypoxia-inducible factor (HIF). Its expression is increased in diabetic rat hearts; however, its role remains unclear. We investigated the potential role and mechanism of action of PHD3 in the setting of diabetes-induced myocardial dysfunction in rats. ...
Source: Molecular and Cellular Endocrinology - January 27, 2015 Category: Endocrinology Source Type: research

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