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Total 281 results found since Jan 2013.

Modulation of Sirt1/NF- κB interaction of evogliptin attributed to inhibition of vascular inflammatory response leading to attenuation of atherosclerotic plaque formation.
This study demonstrates that the protective effect of evogliptin on atherosclerotic progression via inhibition of vascular inflammation. The findings imply that evogliptin has potential for anti-atherosclerosis therapy that targets arterial inflammation. PMID: 31421133 [PubMed - as supplied by publisher]
Source: Biochemical Pharmacology - August 13, 2019 Category: Drugs & Pharmacology Authors: Anh Nguyen P, Soon Won J, Khalilur Rahman M, Ju Bae E, Kyung Cho M Tags: Biochem Pharmacol Source Type: research

Physiological roles of the GIP receptor in murine brown adipose tissue
ConclusionsThe BAT GIPR is linked to the control of metabolic gene expression, fuel utilization, and oxygen consumption. However, the selective loss of the GIPR within BAT is insufficient to recapitulate the findings of decreased weight gain and resistance to obesity arising in experimental models with systemic disruption of GIP action.Graphical abstract
Source: Molecular Metabolism - August 11, 2019 Category: Endocrinology Source Type: research

Hydrogen sulfide regulates circadian-clock genes in C2C12 myotubes and the muscle of high-fat-diet-fed mice.
We examined whether H2S has any effect on CCG in the skeletal muscle of mice fed a high-fat diet (HFD) and in myotubes. In the muscle of HFD-mice, the expression of H2S biosynthesis enzyme genes (CSE, CBS, and 3-Mpst) along with antioxidant genes (GCLC, GCLM, GSS, and GSR) involved in GSH biosynthesis and recycling were reduced significantly, but the oxidative stress (OS) increased. Expression of the CCG (Bmal1, Clock, RORα, Cry2, Per2) and clock-controlled genes (PPARγ, PGC-1α, RXRα) was downregulated, whereas the levels of PPARα mRNA were upregulated. Similar to that in the muscle of HFD-mice, in vitro myotubes expo...
Source: Archives of Biochemistry and Biophysics - July 23, 2019 Category: Biochemistry Authors: Parsanathan R, Jain SK Tags: Arch Biochem Biophys Source Type: research

CYP3A suppression during diet-induced nonalcoholic fatty liver disease is independent of PXR regulation.
Abstract Cytochrome P450 3A (CYP3A) activity is inhibited, and its expression is suppressed during many diseases, including nonalcoholic fatty liver disease (NAFLD). However, the mechanism is controversial. Here, we report that PXR may not take part in the downregulation of CYP3A during NAFLD. Hepatic CYP3A11 (major subtype of mouse CYP3A) mRNA and protein expression was significantly decreased in both mice fed a high-fat diet (HFD) for 8 weeks and palmitate (PA)-treated mouse primary hepatocytes. Similarly, in HepG2 cells, PA treatment significantly suppressed the CYP3A4 (major subtype of human CYP3A) mRNA level ...
Source: Chemico-Biological Interactions - July 23, 2019 Category: Molecular Biology Authors: Zeng H, Lin Y, Gong J, Lin S, Gao J, Li C, Feng Z, Zhang H, Zhang J, Li Y, Yu C Tags: Chem Biol Interact Source Type: research

Carbonic Anhydrase 1-Mediated Calcification Is Associated With Atherosclerosis, and Methazolamide Alleviates Its Pathogenesis
Vascular calcification is an important pathogenic process in atherosclerosis (AS); however, its immediate cause is unknown. Our previous study demonstrated that carbonic anhydrase 1 (CA1) stimulates ossification and calcification in ankylosing spondylitis and breast cancer. The current study investigated whether CA1 plays an important role in AS calcification and whether the CA inhibitor methazolamide (MTZ) has a therapeutic effect on AS. We successfully established an AS model by administration of a high-fat diet to ApoE-/- mice. The treated animals had significantly increased serum levels of high-density lipoprotein chol...
Source: Frontiers in Pharmacology - July 9, 2019 Category: Drugs & Pharmacology Source Type: research

Resveratrol protects against nonalcoholic fatty liver disease by improving lipid metabolism and redox homeostasis via the PPAR α pathway
This study investigated the preventive and therapeutic effects of RSV on high-fat diet (HFD)-induced NAFLD in rats and palmitate acid (PA)-induced hepatocyte steatosis in HepG2 cells. Hepatocytes were incubated with inhibitors of peroxisome proliferator-activated receptor α (PPARα) or short interfering RNAs (siRNAs) targeting PPARα, AMP-activated protein kinase (AMPK), and protein kinase A (PKA) to determine the underlying mechanisms. We found that RSV noticeably ameliorated HFD-induced hepatic steatosis in rats and inhibited PA-induced lipid accumulation in HepG2 cells. Moreover, RSV improved lipid metabolism, enhanced...
Source: Applied Physiology, Nutrition, and Metabolism - June 6, 2019 Category: Physiology Authors: Yujie Huang Hedong Lang Ka Chen Yong Zhang Yanxiang Gao Li Ran Long Yi Mantian Mi Qianyong Zhang Source Type: research

CYP3A suppression during diet-induced nonalcoholic fatty liver disease is independent of PXR regulation
Publication date: Available online 24 May 2019Source: Chemico-Biological InteractionsAuthor(s): Hang Zeng, Yiming Lin, Jiande Gong, Sisi Lin, Jianguo Gao, Chunxiao Li, Zemin Feng, Hong Zhang, Jie Zhang, Youming Li, Chaohui YuAbstractCytochrome P450 3A (CYP3A) activity is inhibited, and its expression is suppressed during many diseases, including nonalcoholic fatty liver disease (NAFLD). However, the mechanism is controversial. Here, we report that PXR may not take part in the downregulation of CYP3A during NAFLD. Hepatic CYP3A11 (major subtype of mouse CYP3A) mRNA and protein expression was significantly decreased in both ...
Source: Chemico Biological Interactions - May 25, 2019 Category: Biochemistry Source Type: research

Parthenolide, a feverfew-derived phytochemical, ameliorates obesity and obesity-induced inflammatory responses via the Nrf2/Keap1 pathway
Publication date: Available online 9 May 2019Source: Pharmacological ResearchAuthor(s): Chae Young Kim, Bobin Kang, Hyung Joo Suh, Hyeon-Son ChoiAbstractParthenolide (PL) is one of the most abundant sesquiterpene lactones found in the plant feverfew (Tanacetum parthenium (L.) Sch.Bip.). PL was investigated for its effect on obesity and obesity-induced inflammatory/oxidant responses in vitro and in vivo. An obesity-induced inflammatory response was induced in various co-culture systems using adipocytes (3T3-L1) and macrophages (RAW264.7) in vitro and the effect of PL and its mechanism of action were determined. PL effective...
Source: Pharmacological Research - May 11, 2019 Category: Drugs & Pharmacology Source Type: research

Tangshen Formula Alleviates Hepatic Steatosis by Inducing Autophagy Through the AMPK/SIRT1 Pathway
Conclusion In conclusion, the present study demonstrated that autophagy was involved in relieving the effects of TSF against NAFLD, which were mediated by the AMPK/SIRT1 pathway (Figure 7D). These findings may improve our current understanding of the role of TSF in treating hepatic steatosis and provide an experimental basis for the clinical application of TSF in NAFLD and its related metabolic syndrome. Ethics Statement This study was carried out in accordance with the recommendations in the Guide for the Care and Use of Laboratory Animals of the National Institutes of Health. The protocol was approved by the Ethics Co...
Source: Frontiers in Physiology - April 25, 2019 Category: Physiology Source Type: research

TonEBP Suppresses the HO-1 Gene by Blocking Recruitment of Nrf2 to Its Promoter
Discussion Dynamic changes in the functional phenotype of macrophages are associated with pathogenesis of inflammatory diseases (5–7). TonEBP primes macrophages toward an M1 phenotype, which has pro-inflammatory properties. TonEBP does this by promoting expression of pro-inflammatory genes via interaction with NF-κB (36) and by binding directly to the promoter (37, 64). In addition, TonEBP suppresses expression of the anti-inflammatory cytokine IL-10 by limiting chromatin access to the promoter (37). The pro-inflammatory function of TonEBP suggests that inhibiting its expression or activation could suppres...
Source: Frontiers in Immunology - April 17, 2019 Category: Allergy & Immunology Source Type: research

Increasing Upstream Chromatin Long –Range Interactions May Favor Induction of Circular RNAs in LysoPC-Activated Human Aortic Endothelial Cells
We examined the sponging potential of all significantly changed circRNAs using the CircInteractome database (Montefiori et al., 2018), recording two miRNAs with four or more predicted binding sites in a single circRNA transcript, a threshold above which meaningful sponging activity is likely to occur Memczak et al. (2013). Another four significantly changed circRNAs are experimentally shown to sponge miRNAs (Dudekula et al., 2016; Chen et al., 2017; Yan et al., 2017; Wang et al., 2018), for six total circRNAs with miRNA sponging activity including miR125, miR143, miR1272, miR153, miR515-5p, and miR196a-5p (Table 4). In Fig...
Source: Frontiers in Physiology - April 17, 2019 Category: Physiology Source Type: research

FGF21 as Modulator of Metabolism in Health and Disease
In conclusion, FGF21 belongs to a promising class of cytokines that are induced in response to stress and that can be used as a drug, drug target, or through a biomarker, depending on the physio-pathological context. All these findings will become clear when FGF21 will be used as a therapeutic molecule, exploiting the beneficial effects of FGF21 for treating metabolic disease or when it will be blocked to ameliorate disease progression and the onset of disease. Author Contributions CT and MS wrote the manuscript. VR contributed to the discussion. Funding This work was supported from the AFM-Telethon (19524), Italian Mi...
Source: Frontiers in Physiology - April 16, 2019 Category: Physiology Source Type: research

Resveratrol prevents sarcopenic obesity by reversing mitochondrial dysfunction and oxidative stress via the PKA/LKB1/AMPK pathway.
CONCLUSIONS: Resveratrol prevented high-fat diet-induced muscle atrophy in aged rats by reversing mitochondrial dysfunction and oxidative stress, which was partially mediated by the PKA/LKB1/AMPK pathway. These findings indicate that resveratrol might have potential uses for the prevention and treatment of sarcopenic obesity. PMID: 30988232 [PubMed - as supplied by publisher]
Source: Aging - April 14, 2019 Category: Biomedical Science Authors: Huang Y, Zhu X, Chen K, Lang H, Zhang Y, Hou P, Ran L, Zhou M, Zheng J, Yi L, Mi M, Zhang Q Tags: Aging (Albany NY) Source Type: research

Pro-atherogenic proteoglycanase ADAMTS-1 is down-regulated by lauric acid through PI3K and JNK signaling pathways in THP-1 derived macrophages.
Abstract The prevalence of atherosclerosis has increased significantly in the recent years due to sedentary lifestyle and high-fat diet. However, the association between saturated fat intake and the increased risk for atherosclerotic cardiovascular diseases remains heavily debated. Lauric acid belongs to the saturated fatty acid group and its unique medium chain fatty acid properties are proven to be beneficial to humans in many ways. Thus, the aim of this project is to investigate the effect of lauric acid on the expression of a disintegrin and metalloproteinase with thrombospondin motifs (ADAMTS) genes-ADAMTS-1,...
Source: Molecular Biology Reports - April 14, 2019 Category: Molecular Biology Authors: Ong MH, Wong HK, Tengku-Muhammad TS, Choo QC, Chew CH Tags: Mol Biol Rep Source Type: research

Fetuin B aggravates liver X receptor-mediated hepatic steatosis through AMPK in HepG2 cells and mice.
This study aims to investigate the role of fetuin B in hepatic steatosis in C57BL/6 mice and HepG2 cells. 1) We found that the administration of recombinant fetuin B aggravated hepatic lipid accumulation caused by free fatty acids (FFAs) or high fat diet, in vivo and in vitro. It lowered the phosphorylated AMPK levels and activated the LXR-SREBP1c pathway, accompanied by the downregulation of fatty acid oxidation and upregulation of lipogenesis. Furthermore, in HepG2 cells exposed to recombinant fetuin B and FFAs, the AMPK agonist depressed the LXR-SREBP1c pathway and alleviated lipid accumulation. The knockdown of LXR pro...
Source: American Journal of Translational Research - April 13, 2019 Category: Research Tags: Am J Transl Res Source Type: research