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https://www.readbyqxmd.com/read/29156528/actein-ameliorates-hepatic-steatosis-and-fibrosis-in-high-fat-diet-induced-nafld-by-regulation-of-insulin-and-leptin-resistant
#1
Hong-Jun Chen, Jin Liu
Insulin and leptin resistance are highly involved in metabolic syndrome and non-alcoholic fatty liver disease (NAFLD). Presently, no approved treatment is available. Actein is isolated from the rthizomes of Cimicifuga foetida, a triterpene glycoside, exhibiting important biological properties, such as anti-inflammatory, anti-cancer, and anti-oxidant activity. However, its effects on metabolic syndrome are poorly understood. The aims of the study were mainly to investigate the molecular mechanisms regulating insulin and leptin resistance, and lipogenic action of actein in high fat diet-fed mice...
November 15, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29155143/obeticholic-acid-raises-ldl-cholesterol-and-reduces-hdl-cholesterol-in-the-diet-induced-nash-din-hamster-model
#2
François Briand, Emmanuel Brousseau, Marjolaine Quinsat, Rémy Burcelin, Thierry Sulpice
The use of rat and mouse models limits the translation to humans for developing novel drugs targeting nonalcoholic steatohepatitis (NASH). Obeticholic acid (OCA) illustrates this limitation since its dyslipidemic effect in humans cannot be observed in these rodents. Conversely, Golden Syrian hamsters have a lipoprotein metabolism mimicking human dyslipidemia since it does express the cholesteryl ester transfer protein (CETP). We therefore developed a Diet-induced NASH (DIN) hamster model and evaluated the impact of OCA...
November 16, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/29154965/noninvasive-assessment-of-nonalcoholic-fatty-liver-disease-clinical-prediction-rules-and-blood-based-biomarkers
#3
REVIEW
Eduardo Vilar-Gomez, Naga Chalasani
The correct identification of patients at increased risk of non-alcoholic steatohepatitis (NASH) and advanced fibrosis is a critical step in the assessment of NAFLD. Since liver biopsy is invasive, expensive and prone to sampling error, several clinical prediction rules and blood-based biomarkers have been developed as an attractive and affordable alternatives to guide clinicians to identify patients at high risk of NASH and advanced fibrosis. Current biomarkers constitute predictive models (e.g., NAFLD fibrosis score, FIB-4 index and BARD score) or direct measures of inflammation (e...
November 14, 2017: Journal of Hepatology
https://www.readbyqxmd.com/read/29154469/novel-non-alcoholic-steatohepatitis-model-with-histopathological-and-insulin-resistant-features
#4
Yohei Owada, Takafumi Tamura, Tomohito Tanoi, Yusuke Ozawa, Yoshio Shimizu, Katsuji Hisakura, Takashi Matsuzaka, Hitoshi Shimano, Noriyuki Nakano, Shingo Sakashita, Toshiya Matsukawa, Hiroko Isoda, Nobuhiro Ohkohchi
Although several non-alcoholic steatohepatitis (NASH) models have been reported to date, few of these models fully reflect the histopathology and pathophysiology of human NASH. The aim of this study was to establish a novel NASH model by feeding a high-fat (HF) diet and administering both carbon tetrachloride (CCl4 ) and the Liver X receptor agonist T0901317. Male C57BL/6J mice were divided into four groups (each n = 5): HF, HF + CCl4 , HF + T0901317, and the novel NASH model (HF + CCl4  + T0901317)...
November 20, 2017: Pathology International
https://www.readbyqxmd.com/read/29153939/serum-concentrations-of-fetuin-b-in-lipodystrophic-patients
#5
Konstanze Miehle, Thomas Ebert, Susan Kralisch, Annett Hoffmann, Jürgen Kratzsch, Haiko Schlögl, Michael Stumvoll, Mathias Fasshauer
OBJECTIVE: Fetuin B is an adipokine/hepatokine which is significantly elevated in insulin resistance/type 2 diabetes mellitus and hepatic steatosis. Regulation of fetuin B in patients with lipodystrophy (LD) - a disease group which is characterized by subcutaneous adipose tissue loss, hypertriglyceridemia, hepatic steatosis, insulin resistance, and dysregulation of several adipokines - has not been elucidated so far. MATERIAL AND METHODS: Serum fetuin B levels were determined in 37 patients with LD, as well as in a control cohort consisting of 37 non-LD participants matched for age, gender, and body mass index...
November 16, 2017: Cytokine
https://www.readbyqxmd.com/read/29152143/therapeutic-hexapeptide-pgpipn-prevents-and-cures-alcoholic-fatty-liver-disease-by-affecting-the-expressions-of-genes-related-with-lipid-metabolism-and-oxidative-stress
#6
Nan Qi, Chen Liu, Haoran Yang, Wanrong Shi, Shenyi Wang, Yan Zhou, Cai Wei, Fang Gu, Yide Qin
PGPIPN is a therapeutic hexapeptide derived from bovine β-casein. Here we investigated the role and mechanism of this peptide on alcoholic fatty liver disease (AFLD). We took human hepatic cell line LO2 and hepatocellular carcinoma cell line HepG2 to establish the models of steatosis hepatocyte induced by alcohol, taken PGPIPN as pharmacological intervention. And we also established the model of AFLD mice, taken PGPIPN as therapeutic drug and glutathione (GSH) as positive control. We assayed the biochemical materials related to liver injury, lipid metabolism and oxidation, and observed morphology change and fat accumulation of hepatocyte...
October 20, 2017: Oncotarget
https://www.readbyqxmd.com/read/29150932/high-fat-diet-induced-oxidative-stress-blocks-hepatocyte-nuclear-factor-4%C3%AE-and-leads-to-hepatic-steatosis-in-mice
#7
Dongsheng Yu, Gang Chen, Minglin Pan, Jia Zhang, Wenping He, Yang Liu, Xue Nian, Liang Sheng, Bin Xu
Nonalcoholic fatty liver disease (NAFLD) is the most common form of chronic liver disease with manifestation of over-accumulation of fat in liver. Increasing evidences indicate that NAFLD may be in part caused by malfunction of very low density lipoprotein (VLDL) secretion. Hepatocyte nuclear factor 4α (HNF4α), a nuclear receptor protein, plays an important role in sustain hepatic lipid homeostasis via transcriptional regulation of genes involved in secretion of VLDL, such as apolipoprotein B (ApoB). However, the exact functional change of HNF4α in NAFLD remains to be elucidated...
November 18, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29150719/preoperative-optimization-for-major-hepatic-resection
#8
REVIEW
Sarah Walcott-Sapp, Kevin G Billingsley
PURPOSE: Major hepatic resections are performed for primary hepatobiliary malignancies, metastatic disease, and benign lesions. Patients with chronic liver disease, including cirrhosis and steatosis, are at an elevated risk of malnutrition and impaired strength and exercise capacity, deficits which cause increased risk of postoperative complications and mortality. The aims of this report are to discuss the pathophysiology of changes in nutrition, exercise capacity, and muscle strength in patient populations likely to require major hepatectomy, and review recommendations for preoperative evaluation and optimization...
November 18, 2017: Langenbeck's Archives of Surgery
https://www.readbyqxmd.com/read/29150621/pnpla3-variant-and-portal-periportal-histological-pattern-in-patients-with-biopsy-proven-non-alcoholic-fatty-liver-disease-a-possible-role-for-oxidative-stress
#9
Guido Carpino, Daniele Pastori, Francesco Baratta, Diletta Overi, Giancarlo Labbadia, Licia Polimeni, Alessia Di Costanzo, Gaetano Pannitteri, Roberto Carnevale, Maria Del Ben, Marcello Arca, Francesco Violi, Francesco Angelico, Eugenio Gaudio
Pathogenesis of non-alcoholic fatty liver disease (NAFLD) is influenced by predisposing genetic variations, dysmetabolism, systemic oxidative stress, and local cellular and molecular cross-talks. Patatin-like phospholipase domain containing 3 (PNPLA3) gene I148M variant is a known determinant of NAFLD. Aims were to evaluate whether PNPLA3 I148M variant was associated with a specific histological pattern, hepatic stem/progenitor cell (HpSC) niche activation and serum oxidative stress markers. Liver biopsies were obtained from 54 NAFLD patients...
November 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29150142/association-between-non-alcoholic-fatty-liver-disease-and-cancer-incidence-rate
#10
Gi-Ae Kim, Han Chu Lee, Jaewon Choe, Min-Ju Kim, Min Jung Lee, Hye-Sook Chang, In Young Bae, Hong-Kyu Kim, Jihyun An, Ju Hyun Shim, Kang Mo Kim, Young-Suk Lim
BACKGROUND & AIMS: Little is known about the association between non-alcoholic fatty liver disease (NAFLD) and cancer development. This study investigated the cancer incidence rates in NAFLD and analysed the association between NAFLD and cancer development. METHODS: This historical cohort study included subjects who were followed up for >1 year after having a heath checkup at a tertiary hospital in Korea from September 1, 2004 to December 31, 2005. NAFLD was diagnosed by ultrasonographic detection of hepatic steatosis in the absence of other known liver disease, including alcoholic or viral hepatitis...
November 2, 2017: Journal of Hepatology
https://www.readbyqxmd.com/read/29149647/dietary-fish-oil-differentially-ameliorates-high-fructose-diet-induced-hepatic-steatosis-and-hyperlipidemia-in-mice-depending-on-time-of-feeding
#11
Katsutaka Oishi, Tatsuya Konishi, Chiaki Hashimoto, Saori Yamamoto, Yoshinori Takahashi, Yasuhiko Shiina
Chrononutrition is the science of nutrition based on chronobiology. Numerous epidemiological studies have shown that fish oil (FO) reduces the risk of cardiovascular events through various actions such as lowering triglycerides. The present study aimed to determine the time of day when the hypertriglyceridemia-decreasing ability of FO is optimal in mice. A high-fructose diet (HFrD) that induces hyperlipidemia in mice was replaced with the same diet containing 4% FO (HFrD-4% FO) at different times of the day for 2 weeks as described below...
October 12, 2017: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/29147490/hypolipidemic-effects-of-total-flavonoide-extracted-from-the-leaves-of-actinidiakolomikta-in-rats-fed-a-high-fat-diet
#12
Zhenxiang Yu, Huali Xu, Xiaofeng Yu, Dayun Sui, Guangzhu Lin
Objectives: This study was to investigate the antihyperlipidemic and antioxidant effect of total flavonoid extract from Actinidiakolomikta (TFAK) in hyperlipidemia induced by a high-fat diet. Materials and Methods: Male SD rats were randomly divided into 6 groups: normal group, model (hyperlipidemic diet) group, hyperlipedemic diet supplemented with TFAK (50, 100 and 200 mg/kg) and simvastatin (30 mg/kg) groups. The rats were administrated TFAK by oral for 28 days...
October 2017: Iranian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/29146411/metabolic-adaptation-to-intermittent-fasting-is-independent-of-peroxisome-proliferator-activated-receptor-alpha
#13
Guolin Li, Chad N Brocker, Tingting Yan, Cen Xie, Kristopher W Krausz, Rong Xiang, Frank J Gonzalez
BACKGROUND: Peroxisome proliferator-activated receptor alpha (PPARA) is a major regulator of fatty acid oxidation and severe hepatic steatosis occurs during acute fasting in Ppara-null mice. Thus, PPARA is considered an important mediator of the fasting response; however, its role in other fasting regiments such as every-other-day fasting (EODF) has not been investigated. METHODS: Mice were pre-conditioned using either a diet containing the potent PPARA agonist Wy-14643 or an EODF regimen prior to acute fasting...
November 6, 2017: Molecular Metabolism
https://www.readbyqxmd.com/read/29143783/metformin-potentiates-the-benefits-of-dietary-restraint-a-metabolomic-study
#14
Marta Riera-Borrull, Anabel García-Heredia, Salvador Fernández-Arroyo, Anna Hernández-Aguilera, Noemí Cabré, Elisabet Cuyàs, Fedra Luciano-Mateo, Jordi Camps, Javier A Menendez, Jorge Joven
Prevention of the metabolic consequences of a chronic energy-dense/high-fat diet (HFD) represents a public health priority. Metformin is a strong candidate to be incorporated in alternative therapeutic approaches. We used a targeted metabolomic approach to assess changes related to the multi-faceted metabolic disturbances provoked by HFD. We evaluated the protective effects of metformin and explored how pro-inflammatory and metabolic changes respond when mice rendered obese, glucose-intolerant and hyperlipidemic were switched to diet reversal with or without metformin...
October 28, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29142166/fish-oil-feeding-reverses-hepatomegaly-and-disrupted-hepatic-function-due-to-the-lack-of-fxr-signaling
#15
Masaaki Miyata, Kouhei Shinno, Tomoki Kinoshita, Yuichi Kinoshita, Yoshimasa Sugiura
Mice lacking farnesoid X receptor (FXR) are used as a model for nonalcoholic fatty liver disease because their livers exhibit hepatomegaly, hepatic steatosis, and hepatic inflammation. The influence of fish oil feeding on hepatomegaly and disrupted hepatic function was investigated using female Fxr-null mice and wild-type mice fed a fish oil diet (2% fish oil and 2% corn oil) or a control diet (4% corn oil) for 4 weeks. Hepatic n-3 polyunsaturated fatty acid (PUFA) levels, including 22:6 n-3 docosahexaenoic acid (DHA) and 20:5 n-3 eicosapentaenoic acid (EPA) were significantly higher in the fish oil group than those in the control group of Fxr-null mice and wild-type mice...
2017: Journal of Toxicological Sciences
https://www.readbyqxmd.com/read/29141573/liver-protective-effects-of-extra-virgin-olive-oil-interaction-between-its-chemical-composition-and-the-cell-signaling-pathways-involved-in-protection
#16
Sandra A Soto-Alarcon, Rodrigo Valenzuela, Alfonso Valenzuela, Luis A Videla
BACKGROUND AND OBJECTIVE: The liver is an organ susceptible to a multitude of injuries that causes liver damage, like steatosis, non-alcoholic steatohepatitis, cirrhosis, hepatocellular carcinoma, and ischemia-reperfusion injury. Extra virgin olive oil (EVOO), presents several protective effects on the liver, reducing hepatic steatosis, hepatocyte ballooning, fibrogenesis, preventing lipid peroxidation, among other effects. Due to its high levels of monounsaturated fatty acids, mainly oleic acid and phenolic compounds, such as hydroxytyrosol and oleuropein, EVOO is able to participate in the activation of different signaling pathways in the hepatocytes involved in the prevention of inflammation, oxidative stress, endoplasmic reticulum stress, mitochondrial dysfunction, and insulin resistance, allowing the prevention or resolution of liver damage...
November 14, 2017: Endocrine, Metabolic & Immune Disorders Drug Targets
https://www.readbyqxmd.com/read/29140550/lncrna-h19-interacts-with-polypyrimidine-tract-binding-protein-1-to-reprogram-hepatic-lipid-homeostasis
#17
Chune Liu, Zhihong Yang, Jianguo Wu, Li Zhang, Sangmin Lee, Dong-Ju Shin, Melanie Tran, Li Wang
H19 is an imprinted long non-coding RNA abundantly expressed in embryonic liver and repressed after birth. Here we show that H19 serves as a lipid sensor by synergizing with RNA-binding protein PTBP1 to modulate hepatic metabolic homeostasis. H19RNA interacts with PTBP1 to facilitate its association with SREBP1c mRNA and protein, leading to increased stability and nuclear transcriptional activity. H19 and PTBP1 are upregulated by fatty acids in hepatocytes and in diet-induced fatty liver, which further augments lipid accumulation...
November 15, 2017: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/29139555/tauroursodeoxycholic-acid-inhibits-intestinal-inflammation-and-barrier-disruption-in-nafld-mice
#18
Weijun Wang, Jinfang Zhao, Wenfang Gui, Dan Sun, Haijiang Dai, Li Xiao, Huikuan Chu, Fan Du, Qingjing Zhu, Bernd Schnabl, Kai Huang, Ling Yang, Xiaohua Hou
BACKGROUND AND PURPOSE: The gut-liver axis is associated with the progression of non-alcoholic fatty liver disease (NAFLD). Targeting the gut-liver axis and bile acid-based pharmaceuticals are potential therapies for NAFLD. The effect of tauroursodeoxycholic acid (TUDCA), a candidate medicine for NAFLD, on intestinal barrier function, intestinal inflammation, gut lipid transport and microbiota composition in a murine NAFLD model were analysed. EXPERIMENTAL APPROACHES: An NAFLD mouse model was established by feeding mice with a high-fat diet (HFD) for 16 weeks...
November 15, 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/29138227/the-hepatokines-fetuin-a-and-fetuin-b-are-up-regulated-in-the-state-of-hepatic-steatosis-and-may-differently-impact-on-glucose-homeostasis-in-humans
#19
Andreas Peter, Marketa Kovarova, Harald Staiger, Jürgen Machann, Fritz Schick, Alfred Königsrainer, Ingmar Koenigsrainer, Erwin D Schleicher, Andreas Fritsche, Hans-Ulrich Häring, Norbert Stefan
The liver is a central regulator of whole-body glucose and lipid homeostasis and hepatokines, like fetuin-A, have been identified as markers and mediators of fatty liver-induced cardiometabolic risk. The closely related protein fetuin-B was shown to be up-regulated in the fatty liver and to impact on glucose homeostasis in mice. In the present study we aimed to test the relevance of these findings in humans. In 55 subjects hepatic mRNA expression of both hepatokines, fetuin-A and fetuin-B, associated positively with liver triglyceride content, while only fetuin-A expression associated with the homeostatic model assessment of insulin resistance...
November 14, 2017: American Journal of Physiology. Endocrinology and Metabolism
https://www.readbyqxmd.com/read/29137226/the-neglected-avian-hepatotropic-virus-induces-acute-and-chronic-hepatitis-in-ducks-an-alternative-model-for-hepatology
#20
Xumin Ou, Sai Mao, Jingyu Cao, Yunchao Ma, Guangpeng Ma, Anchun Cheng, Mingshu Wang, Dekang Zhu, Shun Chen, Renyong Jia, Mafeng Liu, Kunfeng Sun, Qiao Yang, Ying Wu, Xiaoyue Chen
Duck Hepatitis A Virus (DHAV) belongs to the Avihepatovirus, which is also classified into Picornaviridae with Hepatovirus, Hepatitis A Virus (HAV). In humans, the pathogenesis of HAV is not well understood because of limited work with animal models. Here, we investigated the progress of duck viral hepatitis caused by DHAV and their potential for dissecting the pathogenesis of HAV. During the course of infection, the duck model had undergone hepatocellular lesions (vacuolation, acidophilic degeneration and steatosis), lymphocytes recruitment (neutrophil granulocytes, heterophilic granulocytes and T cells or plasm cells) and repair (activation of hepatic stellate cells, fibrosis and regeneration)...
October 10, 2017: Oncotarget
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