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Condition: Fatty Liver Disease (FLD)

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Total 185 results found since Jan 2013.

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

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

Hypoxia exacerbates non-alcoholic fatty liver disease via HIF-2 α/PPARα pathway.
This study aimed to investigate whether hypoxia can affect non-alcoholic fatty liver disease (NAFLD) progression and the associated mechanisms, specifically regarding the HIF-2α / PPARα pathway in vitro and vivo. Recent studies have reported that, compared with HIF-1α, HIF-2α has different effects on lipid metabolism. We propose hypoxia may exacerbate NAFLD by the HIF-2α upregulation-induced suppression of PPARα in the liver. To verify this hypothesis, a steatotic human hepatocyte (L02) cell line treated with free fatty acids and a mouse model of NAFLD fed a high-fat diet were used. Steatotic hepatocytes were treated...
Source: American Journal of Physiology. Endocrinology and Metabolism - August 19, 2019 Category: Physiology Authors: Chen J, Chen J, Fu H, Li Y, Wang L, Luo S, Lu H Tags: Am J Physiol Endocrinol Metab Source Type: research

M3 Muscarinic receptor activation reduces hepatocyte lipid accumulation via CaMKK β/AMPK pathway.
In conclusion, this proof-of-concept study demonstrates that M3R has protective effects against hepatocyte lipid accumulation by activating AMPK pathway and is a potential therapeutic target for non-alcoholic fatty liver disease. PMID: 31445019 [PubMed - as supplied by publisher]
Source: Biochemical Pharmacology - August 20, 2019 Category: Drugs & Pharmacology Authors: Jadeja RN, Chu X, Wood C, Bartoli M, Khurana S Tags: Biochem Pharmacol Source Type: research

Circulating ectodysplasin A is a potential biomarker for nonalcoholic fatty liver disease
ConclusionsEDA aggravates steatosis by striking balance between lipid deposition and elimination. It was a potential biomarker of NAFLD.
Source: Clinica Chimica Acta - September 15, 2019 Category: Laboratory Medicine Source Type: research

Circulating ectodysplasin A is a potential biomarker for nonalcoholic fatty liver disease.
CONCLUSIONS: EDA aggravates steatosis by striking balance between lipid deposition and elimination. It was a potential biomarker of NAFLD. PMID: 31526774 [PubMed - as supplied by publisher]
Source: International Journal of Clinical Chemistry - September 13, 2019 Category: Chemistry Authors: Yang J, Zhou W, Zhu J, Wu Y, Xu L, Wang Y, Zhang Q, Yang Y Tags: Clin Chim Acta Source Type: research

Allyl isothiocyanate ameliorates lipid accumulation and inflammation in nonalcoholic fatty liver disease via the Sirt1/AMPK and NF- κB signaling pathways.
CONCLUSION: AITC significantly ameliorates hepatic steatosis and inflammation by activating the Sirt1/AMPK pathway and inhibiting the NF-κB pathway. Therefore, AITC is a potential therapeutic agent for NAFLD. PMID: 31558861 [PubMed - in process]
Source: World Journal of Gastroenterology : WJG - September 13, 2019 Category: Gastroenterology Authors: Li CX, Gao JG, Wan XY, Chen Y, Xu CF, Feng ZM, Zeng H, Lin YM, Ma H, Xu P, Yu CH, Li YM Tags: World J Gastroenterol Source Type: research

Liraglutide ameliorates non-alcoholic steatohepatitis by inhibiting NLRP3 inflammasome and pyroptosis activation via mitophagy.
Abstract Non-alcoholic steatohepatitis (NASH) is a key step in the progression of non-alcoholic fatty liver disease (NAFLD), which causes serious health problems worldwide. The nucleotide-binding oligomerization domain, leucine-rich repeat-containing receptor-containing pyrin domain 3 (NLRP3) inflammasome and pyroptosis play crucial roles in the progression of NASH. Our team has provided clinical evidence of the effects of glucagon-like peptide-1 (GLP-1) on the improvement in liver function and histological resolution of NAFLD. Preliminary work has demonstrated that GLP-1 inhibited NLRP3 inflammasome activation in...
Source: European Journal of Pharmacology - October 4, 2019 Category: Drugs & Pharmacology Authors: Yu X, Hao M, Liu Y, Ma X, Lin W, Xu Q, Zhou H, Shao N, Kuang H Tags: Eur J Pharmacol Source Type: research

PNPLA3 I148M mediates the regulatory effect of NF-kB on inflammation in PA-treated HepG2 cells.
This study aimed to elucidate whether PNPLA3 I148M is involved in NF-kB-related inflammation regulation in NAFLD. HepG2 cells homozygous for the PNPLA3 I148M mutation were used. The human PNPLA3 promoter sequence was screened for NF-kB binding sites using the MATCH and PATCH tools. NF-kB-mediated transcriptional regulation of the PNPLA3 gene was assessed by luciferase reporter assay, EMSA and ChIP-qPCR. Wild-type (I148I) and mutant (M148M) PNPLA3 were overexpressed using stable lentivirus-mediated transfection. The pCMV vector and siRNA were transiently transfected into cells to direct NF-kB overexpression and PNPLA3 silen...
Source: J Cell Mol Med - December 2, 2019 Category: Molecular Biology Authors: Yuan S, Liu H, Yuan D, Xu J, Chen Y, Xu X, Xu F, Liang H Tags: J Cell Mol Med Source Type: research

Role of ATP-binding cassette transporter A1 in suppressing lipid accumulation by glucagon-like peptide-1 agonist in hepatocytes
ConclusionsOur data reveals that exendin-4 stimulates hepatic ABCA1 expression and reduces lipid accumulation by the CaMKK/CaMKIV/PREB pathway, suggesting that ABCA1 and PREB might be the therapeutic targets in fatty liver disease.Graphical abstract
Source: Molecular Metabolism - January 7, 2020 Category: Endocrinology 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

Purple sweet potato color protects against hepatocyte apoptosis through Sirt1 activation in high-fat-diet-treated mice.
Conclusion: PSPC protected against HFD-induced hepatic apoptosis by promoting Sirt1- dependent inhibition of p53-apoptotic pathway and facilitation of Akt survival pathway. This study indicates that PSPC is a candidate for nutritional intervention of NAFLD. PMID: 32110174 [PubMed - as supplied by publisher]
Source: Food and Nutrition Research - February 29, 2020 Category: Nutrition Authors: Su W, Zhang C, Chen F, Sui J, Lu J, Wang Q, Shan Q, Zheng G, Lu J, Sun C, Fan S, Wu D, Zhang Z, Zheng Y Tags: Food Nutr Res Source Type: research

Humanin attenuates palmitate-induced hepatic lipid accumulation and insulin resistance via AMPK-mediated suppression of the mTOR pathway.
This study aim was to investigate effects of HN on lipid accumulation in the hepatocytes and insulin signaling, and explore the underlying mechanisms. Protein expression levels were analyzed by Western blotting. Hepatic lipid accumulation was confirmed by Oil red-O staining. We found that HN-treatment ameliorated palmitate-induced lipid accumulation, expression of lipogenesis-associated genes (processed SREBP1, FAS, and SCD1), cell death, and caspase 3 activity in hepatocytes in a dose-dependent manner. Additionally, HN attenuated palmitate-induced impairment of insulin signaling. HN enhanced AMPK phosphorylation, whereas ...
Source: Biochemical and Biophysical Research communications - March 30, 2020 Category: Biochemistry Authors: Kwon C, Sun JL, Jeong JH, Jung TW Tags: Biochem Biophys Res Commun Source Type: research

Gut-Derived Serotonin Contributes to the Progression of Non-Alcoholic Steatohepatitis via the Liver HTR2A/PPAR γ2 Pathway
The precipitous increase in occurrence of non-alcoholic steatohepatitis (NASH) is a serious threat to public health worldwide. The pathogenesis of NASH has not yet been thoroughly studied. We aimed to elucidate the interplay between serotonin (5-hydroxytryptamine, 5-HT) and NASH. The serum 5-HT levels in patients with non-alcoholic fatty liver disease (NAFLD) and a rat fed with high fat-sucrose diet (HFSD) were evaluated using liquid chromatography-hybrid quadrupole time-of-flight mass spectrometry (LC-QTOF MS)/MS. The peripheral Tph1 inhibitor, LP533401, and a tryptophan (TRP)-free diet were administered to rats with NASH...
Source: Frontiers in Pharmacology - May 13, 2020 Category: Drugs & Pharmacology Source Type: research

Hesperetin protects against palmitate-induced cellular toxicity via induction of GRP78 in hepatocytes.
In conclusion, hesperetin protected against palmitate-induced hepatic cell death via activation of the sXBP1/GRP78 signaling pathway, thus inhibiting palmitate-induced ER stress. Moreover, high concentrations of hesperetin induce ER stress and subsequently cause cell death in hepatocytes. PMID: 32763355 [PubMed - as supplied by publisher]
Source: Toxicology and Applied Pharmacology - August 4, 2020 Category: Toxicology Authors: Geng Y, Wu Z, Buist-Homan M, Blokzijl H, Moshage H Tags: Toxicol Appl Pharmacol Source Type: research