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liver fat content

Hui-Jie Zhang, Ling-Ling Pan, Zhi-Min Ma, Zheng Chen, Zhu-Feng Huang, Qian Sun, Yan Lu, Cheng-Kun Han, Ming-Zhu Lin, Xue-Jun Li, Shu-Yu Yang, Xiao-Ying Li
Exercise training can reduce hepatic fat accumulation and cardiovascular risk among patients with nonalcoholic fatty liver disease (NAFLD), but how long these benefits extend beyond the period of active intervention is unclear. Intrahepatic triglyceride (IHTG) content measured by proton magnetic resonance spectroscopy, and metabolic risk factors were assessed among 220 obese subjects with NAFLD who were randomly assigned to vigorous-moderate exercise, moderate exercise, or control over the subsequent 1 year after 12-month exercise intervention...
October 19, 2016: Diabetes, Obesity & Metabolism
Sandip K Boss, Irina Hutson, Charles Harris
Exogenous glucocorticoid (GC) administration results in hyperglycemia, insulin resistance, hepatic dyslipidemia and hypertension, a constellation of findings known as Cushing's syndrome. These effects are mediated by the glucocorticoid receptor (GR). Since GR activation in liver and adipose has been implicated in metabolic syndrome we wanted to determine the role of GR in these tissues in the development of metabolic syndrome. Since GRKO mice (whole body KO) exhibit perinatal lethality due to respiratory failure, we generated tissue specific (liver or adipose) GRKO mice using cre-lox technology...
October 18, 2016: Endocrinology
Poghni Peri-Okonny, Colby Ayers, Naim Maalouf, Sandeep Das, James De Lemos, Jarett Berry, Aslan Turer, Ian Neeland, Philipp Scherer, Wanpen Vongpatanasin
OBJECTIVE: To examine the effect of body adiposity on relationship between leptin and incident hypertension in a multiethnic sample of US population. DESIGN AND METHOD: Participants were normotensive adults with BP ≤ 130/85 enrolled in Dallas Heart Study, a large, multiethnic population-based cohort. Incident hypertension was defined as systolic BP ≥ 140 mmHg, diastolic BP ≥ 90 mmHg, or initiation of antihypertensive medications.Biomarkers were measured at baseline from fasting venous blood samples...
September 2016: Journal of Hypertension
Myung-Shik Lee
Low-grade systemic inflammation in adipose tissues or liver, is an important etiologic factor in insulin resistance. LPS is an important element causing such metabolic inflammation, and intestinal flora is considered a major source of systemic LPS. We studied changes of intestinal microbiota associated with high-fat diet (HFD) that causes insulin resistance and metabolic stress. 16S rRNA gene sequencing showed that HFD significantly decreased the abundance of a mucin-degrading bacterium Akkermansia muciniphila compared to control diet...
September 2016: Journal of Hypertension
Jae Yeon Lee, Adithan Aravinthan, Young Shik Park, Kyo Yeol Hwang, Su-Il Seong, Kwontack Hwang
Obesity is a growing health problem that many countries face, mostly due to the consumption of a Westernized diet. In this present study we observed the effects of a soybean extract fermented by Bacillus subtilis MORI (BTD-1) containing 1-deoxynojirimycin against high fat diet-induced obesity. The results obtained from this study indicated that BTD-1 reduced body weight, regulated hepatic lipid content and adipose tissue, and also affected liver antioxidant enzymes and glucose metabolism. These results suggest that administration of BTD-1 affects obesity by inhibiting hyperglycemia and free radical-mediated stress; it also reduces lipid accumulation...
September 2016: Preventive Nutrition and Food Science
Shengli Yang, Hui Zhang
BACKGROUND: Distiller's dried grains with solubles (DDGS) and soybean meal were used as the substrates for the production of polyunsaturated fatty acids (PUFA) in solid-state fermentation (SSF) by Mortierella alpine. These fermented products were fed to laying hens. PUFA enrichment from chicken breasts was studied. METHODS: The maximum productivity of PUFA was achieved under optimized process condition, including 1% w/w yeast extract as additive, an incubation period of 5 days at 12°C, 10% v/w inoculum level, 75% moisture content, and pH 6...
2016: Food & Nutrition Research
Xin-Yu Liu, Deng-Bao Yang, Yan-Chao Xu, Marianne O L Gronning, Fang Zhang, De-Hua Wang, John R Speakman
Brandt's voles have an annual cycle of body weight and adiposity. These changes can be induced in the laboratory by manipulation of photoperiod. In the present study, male captive bred Brandt's voles aged 35 days were acclimated to a short day (SD) photoperiod (8L:16D) for 70 days. A subgroup of individuals (n=16) were implanted with transmitters to monitor physical activity and body temperature. They were then randomly allocated into long day (LD=16L:8D) (n=19: 8 with transmitters) and SD (n=18: 8 with transmitters) groups for an additional 70 days...
September 30, 2016: Disease Models & Mechanisms
Y Li, C G Zhang, X-H Wang, D-H Liu
OBJECTIVE: To construct the atherosclerosis model of ApoE-knockout (ApoE-/-) mouse after deposition of high-fat diet at brachiocephalic artery and coronary artery. MATERIALS AND METHODS: 40 healthy 8-week SPF-level male ApoE-/- mice of body weigh 16 to 23 g were averagely divided into a high-fat diet group and an ordinary diet group. Mice were sacrificed in a time course study by 3 months, 6 months, 9 months and 12 months. The brachiocephalic artery and coronary artery were extracted for pathological examination, and enzyme-linked immunosorbent assay (ELISA) was used for the examination of serum high-sensitivity C-reactive protein (hs-CRP) content and the relative expression level of liver peroxisome proliferator activated receptor (PPAR)...
September 2016: European Review for Medical and Pharmacological Sciences
Sini Heinonen, Maheswary Muniandy, Jana Buzkova, Adil Mardinoglu, Amaia Rodríguez, Gema Frühbeck, Antti Hakkarainen, Jesper Lundbom, Nina Lundbom, Jaakko Kaprio, Aila Rissanen, Kirsi H Pietiläinen
AIMS/HYPOTHESIS: Low mitochondrial activity in adipose tissue is suggested to be an underlying factor in obesity and its metabolic complications. We aimed to find out whether mitochondrial measures are downregulated in obesity also in isolated adipocytes. METHODS: We studied young adult monozygotic (MZ) twin pairs discordant (n = 14, intrapair difference ΔBMI ≥ 3 kg/m(2)) and concordant (n = 5, ΔBMI < 3 kg/m(2)) for BMI, identified from ten birth cohorts of 22- to 36-year-old Finnish twins...
October 12, 2016: Diabetologia
Jean-Michel Petit, Jean-Pierre Cercueil, Romaric Loffroy, Damien Denimal, Benjamin Bouillet, Coralie Fourmont, Olivier Chevallier, Laurence Duvillard, Bruno Vergès
BACKGROUND: Non-alcoholic fatty liver disease (NAFLD) is very frequent in type 2 diabetes with increased risk of further development of liver fibrosis. Animal studies have shown that GLP-1 receptor agonists may reduce liver lipogenesis. However, data in humans are scarce. OBJECTIVE: To study the effect of liraglutide 1.2 mg/d on liver fat content (LFC) in patients with uncontrolled type 2 diabetes and to evaluate the factors potentially associated with liraglutide-induced modification of LFC...
October 12, 2016: Journal of Clinical Endocrinology and Metabolism
Jennifer Chi Lo, Anne E O'Connor, Zane B Andrews, Camden Lo, Tony Tiganis, Matthew J Watt, Moira K O'Bryan
Fatty liver, or hepatic steatosis, is an alarmingly common pathology in western societies, in large part because if left unheaded it can lead to life-threatening forms of non-alcoholic fatty liver disease, including non-alcoholic steatohepatitis, fibrosis, cirrhosis and hepatocellular carcinoma. As such, it is essential that we attain a greater understanding of the pathways that control energy partitioning in the liver, and ultimately how they are impacted by environmental factors. Herein, we define the essential requirement for a member of the RAB-like clade of small GTPases, RABL2, in fatty acid metabolism including in microtubule-associated mitochondrial movement within the liver...
October 12, 2016: Endocrinology
M Grande, H Murua, I Zudaire, E J Arsenault-Pernet, F Pernet, N Bodin
The lipid composition of somatic and reproductive tissues was determined for female skipjack tuna Katsuwonus pelamis caught in the western Indian Ocean between latitude 10° N and 20° S and longitude 40° and 70° E. The highest total lipid (TL) contents were in the liver and gonads, with white muscle levels approximately three-fold lower. Three lipid classes dominated: triacylglycerols (TAG), sterol esters and wax esters (SE-WE) and phospholipids (PL). Collectively, these accounted for between 70 and 80% of TLs...
October 11, 2016: Journal of Fish Biology
Tsuyoshi Chiba, Sachina Suzuki, Yoko Sato, Tatsuki Itoh, Keizo Umegaki
AIM: Non-alcoholic steatohepatitis (NASH) is a globally recognized liver disease. A methionine- and choline-deficient diet is used to induce NASH in mice; however, this diet also causes severe body weight loss. To resolve this issue, we examined the effects of methionine content in a high-fat and choline-deficient (HFCD) diet on body weight and the development of NASH in mice. METHODS: C57BL/6J mice (male, 10 weeks of age) were fed an L-amino acid rodent (control) diet, high-fat (HF) diet, or HFCD diet containing various amounts of methionine (0...
2016: PloS One
K Cusi, A J Sanyal, S Zhang, B J Hoogwerf, A M Chang, S J Jacober, J M Bue-Valleskey, A N Higdon, E J Bastyr, A Haupt, M L Hartman
AIMS: To compare effects of basal insulin peglispro (BIL), a hepatopreferential insulin, to insulin glargine (glargine) on aminotransferases and liver fat content (LFC) in patients with type 1 and type 2 diabetes (T1D, T2D). MATERIALS AND METHODS: Data from two Phase 2 and five Phase 3 randomized trials comparing BIL and glargine in 1709 T1D and 3662 T2D patients were integrated for analysis of liver laboratory tests. LFC, measured by magnetic resonance imaging (MRI) at baseline, 26 and 52 weeks, was analyzed in 182 T1D patients, 176 insulin-naïve T2D patients and 163 T2D patients previously treated with basal insulin...
October 2016: Diabetes, Obesity & Metabolism
Núria Taltavull, Rosa Ras, Sílvia Mariné, Marta Romeu, Montserrat Giralt, Lucía Méndez, Isabel Medina, Sara Ramos-Romero, Josep L Torres, M Rosa Nogués
A high intake of fat and sucrose can dramatically increase bioactive lipids such as ceramides in tissues. Ceramides regulate several steps in the insulin signal pathway. The effects of n-3 PUFA on insulin resistance are inconsistent, especially in liver. We investigated the effect of n-3 PUFA (EPA/DHA 1 : 1) from fish oil on hepatic ceramides in a pre-diabetic animal model. Three groups of rats were fed standard feed, high fat high sucrose feed (HFHS) or HFHS enriched with n-3 PUFA. We investigated by lipidomic analysis how supplementation of a HFHS diet with n-3 PUFA modifies the hepatic ceramide profile triggered by a HFHS diet...
September 14, 2016: Food & Function
A J Pantophlet, W J J Gerrits, R J Vonk, J J G C van den Borne
In veal calves, the major portion of digestible energy intake originates from milk replacer (MR), with lactose and fat contributing approximately 45 and 35%, respectively. In veal calves older than 4 mo, prolonged high intakes of MR may lead to problems with glucose homeostasis and insulin sensitivity, ultimately resulting in sustained insulin resistance, hepatic steatosis, and impaired animal performance. The contribution of each of the dietary energy sources (lactose and fat) to deteriorated glucose homeostasis and insulin resistance is currently unknown...
October 5, 2016: Journal of Dairy Science
Stefan Z Lutz, Andreas Peter, Fausto Machicao, Apostolia Lamprinou, Jürgen Machann, Fritz Schick, Ingmar Königsrainer, Alfred Königsrainer, Andreas Fritsche, Harald Staiger, Hans-Ulrich Häring, Norbert Stefan, Konstantinos Kantartzis
CONTEXT/OBJECTIVE: Acute pharmacological inhibition of 11β-hydroxysteroid-dehydrogenase 1 (11β-HSD1), which converts cortisone into the much more potent cortisol in peripheral tissues, results in reduction of total-, visceral- and liver fat, but not of insulin resistance. We now investigated whether lifelong alterations of 11β-HSD1 activity similarly affect these cardiometabolic risk parameters, by studying single nucleotide polymorphisms (SNPs) in the 11β-HSD1-coding gene (HSD11B1)...
October 7, 2016: Journal of Clinical Endocrinology and Metabolism
Rebecca J Brown, David Araujo-Vilar, Pik To Cheung, David Dunger, Abhimanyu Garg, Michelle Jack, Lucy Mungai, Elif A Oral, Nivedita Patni, Kristina Rother, Julia von Schnurbein, Ekaterina Sorkina, Takara Stanley, Corinne Vigouroux, Martin Wabitsch, Rachel Williams, Tohru Yorifuji
OBJECTIVE: Lipodystrophy syndromes are extremely rare disorders of deficient body fat associated with potentially serious metabolic complications, including diabetes, hypertriglyceridemia, and steatohepatitis. Due to their rarity, most clinicians are not familiar with their diagnosis and management. This practice guideline summarizes diagnosis and management of lipodystrophy syndromes not associated with HIV or injectable drugs. PARTICIPANTS: Seventeen participants were nominated by worldwide endocrine societies or selected by the committee as content experts...
October 6, 2016: Journal of Clinical Endocrinology and Metabolism
U Smith, B B Kahn
Obesity, the major cause of the current global epidemic of type 2 diabetes (T2D), induces insulin resistance in peripheral insulin target tissues. Several mechanisms have been identified related to cross-talk between adipose tissue, skeletal muscle and liver. These mechanisms involve both increased free fatty acid release and altered secretion of adipokines from adipose tissue. A major determinant of metabolic health is the ability of subcutaneous adipose tissue (SAT) to store excess fat rather than allowing it to accumulate in ectopic depots including liver (i...
October 3, 2016: Journal of Internal Medicine
Bohkyung Kim, Sang Gil Lee, Young-Ki Park, Chai Siah Ku, Tho X Pham, Casey J Wegner, Yue Yang, Sung I Koo, Ock K Chun, Ji-Young Lee
BACKGROUND/OBJECTIVES: Evidence indicates that berry anthocyanins are anti-atherogenic, antioxidant, and anti-inflammatory. However, berries differ vastly in their anthocyanin composition and thus potentially in their biological and metabolic effects. The present study compared hypolipidemic, antioxidant, and anti-inflammatory properties of blueberry (BB), blackberry (BK), and blackcurrant (BC) in a diet-induced obesity (DIO) mouse model. MATERIALS/METHODS: Male C57BL/6J mice were fed a high fat (HF; 35% fat, w/w) control diet or a HF diet supplemented with freeze-dried 5% BB, 6...
October 2016: Nutrition Research and Practice
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