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hepatic steatosis

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https://www.readbyqxmd.com/read/29223854/baicalein-improves-liver-inflammation-in-diabetic-db-db-mice-by-regulating-hmgb1-tlr4-nf-%C3%AE%C2%BAb-signaling-pathway
#1
Huafeng Yin, Lihao Huang, Ting Ouyang, Lvyi Chen
The current study was designed to investigate the hepatoprotective effects and possible mechanisms of Baicalein (BA) on the diabetic liver injury in vivo and in vitro. The results exhibited that BA significantly restored the blood glucose in oral glucose tolerance test (OGTT) and inhibited the levels of insulin, alanine aminotransferase (ALT), aspartate aminotransaminase (AST), total cholesterol (TC) and triglyceride (TG) in C57BL/KsJ-db/db mice. Moreover, BA strikingly attenuated the extent of steatosis in the liver tissues of diabetic mice...
December 7, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/29222917/diagnostic-modalities-for-non-alcoholic-fatty-liver-disease-nafld-non-alcoholic-steatohepatitis-nash-and-associated-fibrosis
#2
REVIEW
Zobair M Younossi, Rohit Loomba, Quentin M Anstee, Mary E Rinella, Elisabetta Bugianesi, Giulio Marchesini, Brent A Neuschwander-Tetri, Lawrence Serfaty, Francesco Negro, Stephen H Caldwell, Vlad Ratziu, Kathleen E Corey, Scott L Friedman, Manal F Abdelmalek, Stephen A Harrison, Arun J Sanyal, Joel E Lavine, Philippe Mathurin, Michael R Charlton, Zachary D Goodman, Naga P Chalasani, Kris V Kowdley, Jacob George, Keith Lindor
NAFLD is a spectrum comprised of isolated steatosis, NASH, advanced fibrosis, and cirrhosis. The majority of NAFLD subjects do not have NASH and don't carry a significant risk for adverse outcomes (cirrhosis and mortality). Globally, the prevalence of NAFLD is approximately 25%. In Asia, a gradient of high prevalence rates to low rates are noted from urban to rural areas. Given the prevalence of NAFLD, the clinical and economic burden of NAFLD and NASH can be substantial. With increasing recognition as an important liver disease, the diagnosis of NASH still requires a liver biopsy which is suboptimal...
December 9, 2017: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/29221940/pioglitazone-attenuates-aging-related-disorders-in-aged-apolipoprotein-e-deficient-mice
#3
Dan Shen, Hao Li, Rui Zhou, Meng-Jie Liu, Hong Yu, Dong-Fang Wu
Pioglitazone (Piog) activates peroxisome proliferator activated receptor-γ (PPARγ) and is widely used in clinic for the treatment of diabetes mellitus. PPARγ in various tissues has the essential regulatory role of multiple metabolic function, suggest that PPARγ signaling may contribute to aging processes. However, little is known about the consequences of Piog on aging in aged animal models. We used apolipoprotein E deficient (apoE-/-) mice model to evaluate the effects of Piog on aging-related disorders...
December 5, 2017: Experimental Gerontology
https://www.readbyqxmd.com/read/29221790/fam3-gene-family-a-promising-therapeutical-target-for-nafld-and-type-2-diabetes
#4
REVIEW
Zhang Xiaoyan, Weili Yang, Junpei Wang, Yuhong Meng, Youfei Guan, Jichun Yang
Non-alcoholic fatty liver disease (NAFLD) and diabetes are severe public health issues worldwide. The Family with sequence similarity 3 (FAM3) gene family consists of four members designated as FAM3A, FAM3B, FAM3C and FAM3D, respectively. Recently, there had been increasing evidence that FAM3A, FAM3B and FAM3C are important regulators of glucose and lipid metabolism. FAM3A expression is reduced in the livers of diabetic rodents and NAFLD patients. Hepatic FAM3A restoration activates ATP-P2 receptor-Akt and AMPK pathways to attenuate steatosis and hyperglycemia in obese diabetic mice...
December 5, 2017: Metabolism: Clinical and Experimental
https://www.readbyqxmd.com/read/29220698/synergistic-interaction-of-fatty-acids-and-oxysterols-impairs-mitochondrial-function-and-limits-liver-adaptation-during-nafld-progression
#5
Francesco Bellanti, Rosanna Villani, Rosanna Tamborra, Maria Blonda, Giuseppina Iannelli, Giorgia di Bello, Antonio Facciorusso, Giuseppe Poli, Luigi Iuliano, Carlo Avolio, Gianluigi Vendemiale, Gaetano Serviddio
The complete mechanism accounting for the progression from simple steatosis to steatohepatitis in nonalcoholic fatty liver disease (NAFLD) has not been elucidated. Lipotoxicity refers to cellular injury caused by hepatic free fatty acids (FFAs) and cholesterol accumulation. Excess cholesterol autoxidizes to oxysterols during oxidative stress conditions. We hypothesize that interaction of FAs and cholesterol derivatives may primarily impair mitochondrial function and affect biogenesis adaptation during NAFLD progression...
December 5, 2017: Redox Biology
https://www.readbyqxmd.com/read/29220367/periodontitis-is-associated-with-significant-hepatic-fibrosis-in-patients-with-non-alcoholic-fatty-liver-disease
#6
William Alazawi, Eduardo Bernabe, David Tai, Tomasz Janicki, Polychronis Kemos, Salma Samsuddin, Wing-Kin Syn, David Gillam, Wendy Turner
BACKGROUND AND AIMS: Non-alcoholic fatty liver disease (NAFLD) has a bidirectional association with metabolic syndrome. It affects up to 30% of the general population, 70% of individuals with diabetes and 90% with obesity. The main histological hallmark of progressive NAFLD is fibrosis. There is a bidirectional epidemiological link between periodontitis and metabolic syndrome. NAFLD, periodontitis and diabetes share common risk factors, are characterised by inflammation and associated with changes in commensal bacteria...
2017: PloS One
https://www.readbyqxmd.com/read/29218813/association-of-pnpla3-rs738409-polymorphism-with-liver-steatosis-but-not-with-cirrhosis-in-patients-with-hbv-infection-systematic-review-with-meta-analysis
#7
REVIEW
Saman Ghalamkari, Heidar Sharafi, Seyed Moayed Alavian
BACKGROUND AND AIM: Hepatitis B virus (HBV) infection is a worldwide health issue and is well known to be the main cause of developing secondary liver complications such as cirrhosis and hepatocellular carcinoma (HCC). The PNPLA3 rs738409 polymorphism has been investigated conclusively with occurrence risk of steatosis and cirrhosis. Therefore, performing a meta-analysis of the available studies with the aim of clarifying the association between rs738409 and occurrence risk of steatosis and cirrhosis among HBV-infected patients would be helpful...
December 7, 2017: Journal of Gene Medicine
https://www.readbyqxmd.com/read/29218660/how-bariatric-surgery-affects-liver-volume-and-fat-density-in-nafld-patients
#8
Ran B Luo, Toshiaki Suzuki, Jonathan C Hooker, Yesenia Covarrubias, Alexandra Schlein, Shanglei Liu, Jeffrey B Schwimmer, Scott B Reeder, Luke M Funk, Jacob A Greenberg, Guilherme M Campos, Bryan J Sandler, Santiago Horgan, Claude B Sirlin, Garth R Jacobsen
INTRODUCTION: Nonalcoholic fatty liver disease (NAFLD) is an epidemic in the obese population. Bariatric surgery is known to reverse multiple metabolic complications of obesity such as diabetes, dyslipidemia, and NAFLD, but the timing of liver changes has not been well described. MATERIALS AND METHODS: This was an IRB-approved, two-institutional prospective study. Bariatric patients received MRIs at baseline and after a pre-operative liquid diet. Liver biopsies were performed during surgery and if NAFLD positive, the patients received MRIs at 1, 3, and 6 months...
December 7, 2017: Surgical Endoscopy
https://www.readbyqxmd.com/read/29218616/noninvasive-assessment-of-hepatic-sinusoidal-obstructive-syndrome-using-acoustic-radiation-force-impulse-elastography-imaging-a-proof-of-concept-study-in-rat-models
#9
So Hyun Park, Seung Soo Lee, Ji-Youn Sung, Kiyong Na, Hyoung Jung Kim, So Yeon Kim, Beom Jin Park, Jae Ho Byun
OBJECTIVES: To determine the feasibility of acoustic radiation force impulse (ARFI) elastography in the evaluation of hepatic sinusoidal obstruction syndrome (SOS) in rat models. METHODS: Rat SOS models of various severities were created by monocrotaline gavage (n = 40) or by intraperitoneal injection of 5-fluorouracil, leucovorin and oxaliplatin (FOLFOX) (n = 16). Liver shear-wave velocity (SWV) was measured using ARFI elastography. Liver samples were analysed for the SOS score, steatosis, lobular inflammation and fibrosis...
December 7, 2017: European Radiology
https://www.readbyqxmd.com/read/29217477/activation-of-hepatic-nogo-b-receptor-expression-a-new-anti-liver-steatosis-mechanism-of-statins
#10
Wenwen Zhang, Xiaoxiao Yang, Yuanli Chen, Wenquan Hu, Lipei Liu, Xiaomeng Zhang, Mengyang Liu, Lei Sun, Ying Liu, Miao Yu, Xiaoju Li, Luyuan Li, Yan Zhu, Qing Robert Miao, Jihong Han, Yajun Duan
Deficiency of hepatic Nogo-B receptor (NgBR) expression activates liver X receptor α (LXRα) in an adenosine monophosphate-activated protein kinase α (AMPKα)-dependent manner, thereby inducing severe hepatic lipid accumulation and hypertriglyceridemia. Statins have been demonstrated non-cholesterol lowering effects including anti-nonalcoholic fatty liver disease (NAFLD). Herein, we investigated if the anti-NAFLD function of statins depends on activation of NgBR expression. In vivo, atorvastatin protected apoE deficient or NgBR floxed, but not hepatic NgBR deficient mice, against Western diet (WD)-increased triglyceride levels in liver and serum...
December 4, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29216341/use-and-importance-of-nonhuman-primates-in-metabolic-disease-research-current-state-of-the-field
#11
Peter J Havel, Paul Kievit, Anthony G Comuzzie, Andrew A Bremer
Obesity and its multiple metabolic sequelae, including type 2 diabetes, cardiovascular disease, and fatty liver disease, are becoming increasingly widespread in both the developed and developing world. There is an urgent need to identify new approaches for the prevention and treatment of these costly and prevalent metabolic conditions. Accomplishing this will require the use of appropriate animal models for preclinical and translational investigations in metabolic disease research. Although studies in rodent models are often useful for target/pathway identification and testing hypotheses, there are important differences in metabolic physiology between rodents and primates, and experimental findings in rodent models have often failed to be successfully translated into new, clinically useful therapeutic modalities in humans...
December 5, 2017: ILAR Journal
https://www.readbyqxmd.com/read/29215435/noninvasive-fibrosis-markers-and-chronic-kidney-disease-among-adults-with-nonalcoholic-fatty-liver-in-usa
#12
Karn Wijarnpreecha, Charat Thongprayoon, Melissa Scribani, Patompong Ungprasert, Wisit Cheungpasitporn
BACKGROUND/AIMS: Studies have shown that nonalcoholic fatty liver disease (NAFLD) is associated with an increased risk of chronic kidney disease (CKD). However, it is unknown whether severe liver fibrosis is associated with a higher prevalence of CKD among NAFLD. We examined the diagnostic performance of noninvasive fibrosis markers in identifying prevalent CKD among NAFLD. METHODS: This study represents an analysis of the National Health and Nutrition Examination Survey conducted in the USA between 1988 and 1994...
December 5, 2017: European Journal of Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/29215172/fibroblast-growth-factor-21-increases-hepatic-oxidative-capacity-but-not-physical-activity-or-energy-expenditure-in-hepatic-pgc-1%C3%AE-deficient-mice
#13
Justin A Fletcher, Melissa A Linden, Ryan D Sheldon, Grace M Meers, E Matthew Morris, Anthony Butterfield, James W Perfield, R Scott Rector, John P Thyfault
Fibroblast growth factor 21 (FGF21) treatment drives metabolic improvements, including increased metabolic flux and reduced hepatic steatosis, but mechanisms responsible for these effects remain to be fully elucidated. We tested if a targeted reduction in hepatic PGC-1α, which has been shown to occur with obesity, negatively impacted the metabolic effects of FGF21. We infused FGF21 (1 mg kg-1  day-1 ) or saline in chow-fed wild-type (WT) and liver-specific PGC-1α +/- (LPGC-1α) mice for 4 weeks. FGF21 administration lowered serum insulin and cholesterol (P ≤ 0...
December 7, 2017: Experimental Physiology
https://www.readbyqxmd.com/read/29210183/young-plasma-reverses-age-dependent-alterations-in-hepatic-function-through-the-restoration-of-autophagy
#14
Anding Liu, Enshuang Guo, Jiankun Yang, Yan Yang, Shenpei Liu, Xiaojing Jiang, Qi Hu, Olaf Dirsch, Uta Dahmen, Cuntai Zhang, David A Gewirtz, Haoshu Fang
Recent studies showing the therapeutic effect of young blood on aging-associated deterioration of organs point to young blood as the solution for clinical problems related to old age. Given that defective autophagy has been implicated in aging and aging-associated organ injuries, this study was designed to determine the effect of young blood on aging-induced alterations in hepatic function and underlying mechanisms, with a focus on autophagy. Aged rats (22 months) were treated with pooled plasma (1 ml, intravenously) collected from young (3 months) or aged rats three times per week for 4 weeks, and 3-methyladenine or wortmannin was used to inhibit young blood-induced autophagy...
December 5, 2017: Aging Cell
https://www.readbyqxmd.com/read/29209997/-18f-bms-747158-02pet-imaging-for-evaluating-hepatic-mitochondrial-complex-1dysfunction-in-a-mouse-model-of-non-alcoholic-fatty-liver-disease
#15
Takemi Rokugawa, Sotaro Momosaki, Miwa Ito, Hitoshi Iimori, Yuki Kato, Kohji Abe
BACKGROUND: Mitochondrial dysfunction is one of the main causes of non-alcohol fatty liver disease (NAFLD). [18F]-BMS-747158-02 (18F-BMS) which was originally developed as a myocardial perfusion imaging agent was reported to bind mitochondrial complex-1 (MC-1). The aim of this study was to investigate the potential use of 18F-BMS for evaluating hepatic MC-1 activity in mice fed a methionine- and choline-deficient (MCD) diet. Male C57BL/6J mice were fed a MCD diet for up to 2 weeks. PET scans with 18F-BMS were performed after 1 and 2 weeks of the MCD diet...
December 6, 2017: EJNMMI Research
https://www.readbyqxmd.com/read/29208699/regulation-of-fatty-acid-trafficking-in-liver-by-thioesterase-superfamily-member-1
#16
Anal Desai, Michele Alves-Bezerra, Yingxia Li, Cafer Ozdemir, Curtis J Bare, Yue Li, Susan J Hagen, David E Cohen
Thioesterase superfamily member 1 (Them1) is an acyl CoA-thioesterase that is highly expressed in brown adipose tissue where it functions to suppress energy expenditure. Lower Them1 expression levels in the liver are upregulated in response to high fat feeding. Lower Them1 expression levels in the liver are upregulated in response to high fat feeding. Them1-/- mice are resistant to diet-induced obesity, hepatic steatosis and glucose intolerance, but the contribution of Them1 in liver is unclear. To examine its liver-specific functions, we created conditional transgenic mice, which when bred to Them1-/- mice and activated, expressed Them1 exclusively in the liver...
December 5, 2017: Journal of Lipid Research
https://www.readbyqxmd.com/read/29208504/hepatoprotective-effects-of-garlic-against-ethanol-induced-liver-injury-a-mini-review
#17
REVIEW
Min-Jie Guan, Ning Zhao, Ke-Qin Xie, Tao Zeng
Alcoholic liver disease (ALD) is a progressively aggravated liver disease with a diverse spectrum from steatosis to hepatitis, fibrosis, and cirrhosis. Epidemiological studies reveal that alcohol is one of the major causes of advanced liver disease in Europe, United States, and China. Despite the considerable harm, progression in ALD research is slow and the current therapies for ALD have less efficient. Garlic (Allium sativum) has been used as a flavoring agent and also a folk medicine since ancient time. Along with the prosperity in the use of herbal medicines for the treatment of human diseases in recent decades, a series of studies have focused on the beneficial effects of garlic against ALD...
December 2, 2017: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/29207397/relationship-of-serum-fetuin-a-with-metabolic-and-clinical-parameters-in-german-children-and-adolescents-with-type-1-diabetes
#18
Christina Reinauer, Thomas Reinehr, Christina Baechle, Beate Karges, Julia Seyfarth, Katharina Foertsch, Martin Schebek, Joachim Woelfle, Michael Roden, Reinhard W Holl, Joachim Rosenbauer, Thomas Meissner
BACKGROUND AND AIM: The hepatokine fetuin A is upregulated in the metabolic syndrome and in type 2 diabetes (T2D), while its role in adolescent type 1 diabetes (T1D) is unclear. We assessed the relationship between circulating fetuin A levels and metabolic control, comorbidities, and complications in adolescent T1D patients. METHODS: We studied the relationship between serum fetuin A and clinical diabetes-related data from the DPV registry (Diabetes-Pa-tienten-Verlaufsdokumentation) in 172 adolescent T1D patients with early-onset (<5 years) long-standing (>10 years) T1D...
December 5, 2017: Hormone Research in Pædiatrics
https://www.readbyqxmd.com/read/29207074/establishment-of-a-novel-hepatic-steatosis-cell-model-by-cas9-sgrna-mediated-dgk%C3%AE-gene-knockout
#19
Jingjing Zhang, Junli Zhao, Xiaojing Zheng, Kai Cai, Qinwen Mao, Haibin Xia
To investigate the role of diacylglycerol kinase θ (DGKθ) in lipid metabolism and insulin resistance, the present study generated an in vitro hepatic steatosis cell model by knockout of the DGKθ gene in liver cancer cell line HepG2 using CRISPR/Cas9 technology. The cell line was characterized by Oil Red O staining and shown to exhibit increased intracellular lipid accumulation, compared with that in wild‑type liver cancer cell line HepG2. The gene expression levels of signaling proteins in pathways involved in lipid metabolism, insulin resistance and gluconeogenesis were also examined...
November 22, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29205589/carnosine-decreased-oxidation-and-glycation-products-in-serum-and-liver-of-high-fat-diet-and-low-dose-streptozotocin-induced-diabetic-rats
#20
Abdurrahman Fatih Aydın, İlknur Bingül, Canan Küçükgergin, Işın Doğan-Ekici, Semra Doğru Abbasoğlu, Müjdat Uysal
High-fat diet (HFD) and low-dose streptozotocin (STZ)-treated rats provide useful animal model for type II diabetes mellitus. Oxidative stress and advanced glycation end products (AGEs) play a role in the development of diabetic complications. Carnosine (CAR) has anti-oxidant and anti-glycating properties. We investigated the effects of CAR on oxidation and glycation products in HFD+STZ rats. Rats were fed with HFD (60% of total calories from fat) for 4 weeks, and then a single dose of STZ (40 mg/kg; i.p...
December 4, 2017: International Journal of Experimental Pathology
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