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Nonalcoholic steatohepatitis

Lingling He, Xiaoli Liu, Lijia Wang, Zhiyun Yang
The findings regarding the effects of thiazolidinediones (TZDs) in nonalcoholic steatohepatitis (NASH) patients have been inconsistent, and the assessment of different clinical variables for evaluating the effects of TZDs confound a direct comparison of the results of different randomized clinical trials (RCTs), especially with regard to lifestyle changes. In this paper, we performed a meta-analysis of randomized controlled trials to clarify the effects of TZD treatment with and without lifestyle changes on histological markers of NASH and clinical variables related to insulin resistance (IR), hyperlipidemia, and obesity...
October 2016: Medicine (Baltimore)
Takuya Iwamoto, Masaki Maeda, Takuro Hisanaga, Issei Saeki, Koichi Fujisawa, Toshihiko Matsumoto, Isao Hidaka, Tsuyoshi Ishikawa, Taro Takami, Isao Sakaida
Objective Tolvaptan was first approved for use for cirrhosis in Japan in September 2013. The aim of the study was to examine the effect of tolvaptan, a vasopressin V2 receptor antagonist, on the prognosis of cirrhosis. Methods The effect of tolvaptan was evaluated in 26 patients with cirrhosis treated at our hospital from September 2013 to April 2015. Results The primary disease was hepatitis C in 20 patients, hepatitis B in 2, nonalcoholic steatohepatitis in 2 and others in 2; and 12 had hepatocellular carcinoma...
2016: Internal Medicine
V G Radchenko, P V Seliverstov, S S Ledentsova, A V Man'yakov
AIM: To determine the incidence of biliary sludge (BS) and to evaluate the clinical efficacy of Chophytol in patients with nonalcoholic steatohepatitis (NASH) and BS in the presence of metabolic syndrome (MS). SUBJECTS AND METHODS: Clinical laboratory examination was made in 72 patients with NASH in the presence of MS. BS was identified in 52 (72.2%) examinees who were divided in two (study and control) groups. The efficacy of Chophytol of plant origin, prepared from the purified extract of fresh artichoke (Cynara scolymus) leaf juice, which was used at a dose of 3 tablets thrice daily for a month, was evaluated...
2016: Terapevticheskiĭ Arkhiv
Ayako Suzuki, Anna Mae Diehl
Nonalcoholic steatohepatitis (NASH) has become a major cause of cirrhosis and liver-related deaths worldwide. NASH is strongly associated with obesity and the metabolic syndrome, conditions that cause lipid accumulation in hepatocytes (hepatic steatosis). It is not well understood why some, but not other, individuals with hepatic steatosis develop NASH. The factors that determine whether or not NASH progresses to cirrhosis are also unclear. This review summarizes key components of NASH pathogenesis and discusses how inherent and acquired variations in regulation of these processes impact the risk for NASH and NASH cirrhosis...
October 5, 2016: Annual Review of Medicine
Kiyoshi Asada, Yosuke Aihara, Hiroaki Takaya, Ryuichi Noguchi, Tadashi Namisaki, Kei Moriya, Masakazu Uejima, Mitsuteru Kitade, Tsuyoshi Mashitani, Kosuke Takeda, Hideto Kawaratani, Yasushi Okura, Kosuke Kaji, Akitoshi Douhara, Yasuhiko Sawada, Norihisa Nishimura, Kenichiro Seki, Akira Mitoro, Junichi Yamao, Hitoshi Yoshiji
AIM: To clarify whether Agtr1a methylation is involved in the development of nonalcoholic steatohepatitis (NASH)-related liver fibrosis in adult rats. METHODS: A choline-deficient amino acid (CDAA) diet model was employed for methylation analysis of NASH-related liver fibrosis. Agtr1a methylation levels were measured in the livers of CDAA- and control choline-sufficient amino acid (CSAA)-fed rats for 8 and 12 wk using quantitative methylation-specific PCR. Hepatic stellate cells (HSCs) were isolated by collagenase digestion of the liver, followed by centrifugation of the crude cell suspension through a density gradient...
October 8, 2016: World Journal of Hepatology
Hitoshi Nishizawa, Genzo Iguchi, Hidenori Fukuoka, Michiko Takahashi, Kentaro Suda, Hironori Bando, Ryusaku Matsumoto, Kenichi Yoshida, Yukiko Odake, Wataru Ogawa, Yutaka Takahashi
Hepatic fibrosis in nonalcoholic steatohepatitis (NASH) and cirrhosis determines patient prognosis; however, effective treatment for fibrosis has not been established. Oxidative stress and inflammation activate hepatic stellate cells (HSCs) and promote fibrosis. In contrast, cellular senescence inhibits HSCs' activity and limits fibrosis. The aim of this study was to explore the effect of IGF-I on NASH and cirrhotic models and to clarify the underlying mechanisms. We demonstrate that IGF-I significantly ameliorated steatosis, inflammation, and fibrosis in a NASH model, methionine-choline-deficient diet-fed db/db mice and ameliorated fibrosis in cirrhotic model, dimethylnitrosamine-treated mice...
October 10, 2016: Scientific Reports
Maryam Noori, Bahar Jafari, Azita Hekmatdoost
BACKGROUND: The effects of pomegranate juice (PJ) on the risk factors of Nonalcoholic Fatty Liver Disease (NAFLD)/Nonalcoholic Steatohepatitis (NASH) have been shown previously; however, its effects on NAFLD and its prevention has not yet been elucidated. Our objective was to evaluate the effects of PJ consumption on prevention of NAFLD/NASH development. Sprague-Dawley rats were fed either high-fat, high sugar diet (model group), or high-fat, high sugar diet plus PJ (model+PJ), or chow diet ad libitum for seven weeks...
September 22, 2016: Journal of the Science of Food and Agriculture
Hui Li, John D Clarke, Anika L Dzierlenga, John Bear, Michael J Goedken, Nathan J Cherrington
Nonalcoholic steatohepatitis (NASH) has been identified as a source of significant interindividual variation in drug metabolism. A previous ex vivo study demonstrated significant changes in hepatic Cytochrome P450 (CYP) activity in human NASH. This study evaluated the in vivo activities of multiple CYP isoforms simultaneously in prominent diabetic NASH mouse models. The pharmacokinetics of CYP selective substrates: caffeine, losartan, and omeprazole changed significantly in a diabetic NASH mouse model, indicating attenuation of the activity of Cyp1a2 and Cyp2c29, respectively...
October 6, 2016: Journal of Biochemical and Molecular Toxicology
Stergios A Polyzos, Jannis Kountouras, Christos S Mantzoros
The association of obesity with nonalcoholic fatty liver disease (NAFLD) has been established. Obesity has been linked not only to initial stages of the disease, i.e., simple steatosis (SS), but also to its severity. Form an epidemiologic point of view, both diseases has an increasing prevalence worldwide. From a pathogenetic point of view, obesity and its associate IR contribute to the initial fat accumulation in the hepatocyte (SS), but also to the progression of SS to nonalcoholic steatohepatitis (NASH), NASH-related cirrhosis and hepatocellular carcinoma (HCC)...
October 6, 2016: Minerva Endocrinologica
Nirvair S Kelley
BACKGROUND: Nonalcoholic fatty liver disease (NAFLD) is a major risk factor for type 2 diabetes, cardiovascular disease, and liver failure. Treatment with n-3 long-chain polyunsaturated fatty acids (n-3 LCPUFAs) produced variable success in improving NAFLD. The purpose of this review is to determine if n-3 LCPUFA will decrease markers of NAFLD, compare the efficacies of eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), and identify factors that contribute to discrepancies in results...
October 6, 2016: Metabolic Syndrome and related Disorders
Yan Zhu, Hongxia Liu, Min Zhang, Grace L Guo
The prevalence of nonalcoholic fatty liver disease (NAFLD) worldwide has increased at an alarming rate, which will likely result in enormous medical and economic burden. NAFLD presents as a spectrum of liver diseases ranging from simple steatosis, nonalcoholic steatohepatitis (NASH), fibrosis, cirrhosis, and even to hepatocellular carcinoma (HCC). A comprehensive understanding of the mechanism(s) of NAFLD-to-NASH transition remains elusive with various genetic and environmental susceptibility factors possibly involved...
September 2016: Acta Pharmaceutica Sinica. B
Martin L Decaris, Kelvin W Li, Claire L Emson, Michelle Gatmaitan, Shanshan Liu, Yenny Wang, Edna Nyangau, Marc Colangelo, Thomas E Angel, Carine Beysen, Jeffrey Cui, Carolyn Hernandez, Len Lazaro, David A Brenner, Scott M Turner, Marc K Hellerstein, Rohit Loomba
: Excess collagen synthesis (fibrogenesis) in the liver plays a causal role in the progression of nonalcoholic fatty liver disease (NAFLD). Methods are needed to identify patients with more rapidly progressing disease and to demonstrate early response to treatment. We describe here a novel method to quantify hepatic fibrogenesis flux rates both directly in liver tissue and non-invasively in blood. Twenty-one patients with suspected NAFLD ingested heavy water ((2) H2 O, 50 ml aliquots) 2-3 times daily for 3 to 5 weeks prior to a clinically indicated liver-biopsy...
October 5, 2016: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
Lucas Lindeboom, Robin A de Graaf, Christine I Nabuurs, Petronella A van Ewijk, Matthijs K C Hesselink, Joachim E Wildberger, Patrick Schrauwen, Vera B Schrauwen-Hinderling
The prevalence of fatty liver reaches alarming proportions. Fatty liver increases the risk for insulin resistance, cardiovascular disease, and nonalcoholic steatohepatitis (NASH). Although extensively studied in a preclinical setting, the lack of noninvasive methodologies hampers our understanding of which pathways promote hepatic fat accumulation in humans. Dietary fat retention is one of the pathways that may lead to fatty liver. The low (1.1%) natural abundance (NA) of carbon-13 ((13)C) allows use of (13)C-enriched lipids for in vivo MR studies...
August 18, 2016: JCI Insight
Mesfin Yimam, Ping Jiao, Mei Hong, Lidia Brownell, Young-Chul Lee, Eu-Jin Hyun, Hyun-Jin Kim, Tae-Woo Kim, Jeong-Bum Nam, Mi-Ran Kim, Qi Jia
Background. Obesity and its comorbidities continue to challenge the world at an alarming rate. Although the long term solution lies on lifestyle changes in the form of dieting and exercising, drug, medical food, or dietary supplement interventions are required for those who are already obese. Here we describe a standardized blend composed of extracts from three medicinal plants: Morus alba, Yerba mate, and Magnolia officinalis for appetite suppression and metabolic disorders management. Method. Extracts were standardized to yield a composition designated as UP601...
2016: Journal of Obesity
Wenhui Yang, Yan He, Shijie Liu, Lulu Gan, Zhiguo Zhang, Jun Wang, Jie Liang, Yang Dong, Qing Wang, Zongliu Hou, Li Yang
Dysregulation of metabolism in hepatocytes leads to hepatic diseases such as hepatitis and non-alcoholic fatty liver disease (NAFLD). NAFLD represents a spectrum of liver diseases ranging from simple steatosis to nonalcoholic steatohepatitis (NASH). NASH is likely to progress to cirrhosis, liver failure and hepatocellular carcinoma, which lead to poor long-term prognosis. However, the exact mechanism of development of NAFLD is not well elucidated. In order to better understand the pathogenesis of NAFLD, we have performed an integrative analysis to livers from NAFLD rat models in a global view of the transcriptome...
September 30, 2016: Gene
Nesrine Semiane, Fabienne Foufelle, Pascal Ferré, Isabelle Hainault, Souad Ameddah, Aicha Mallek, Ali Khalkhal, Yasmina Dahmani
A high intake of sugars has been linked to diet-induced health problems. The aim of this study was to assess whether the long-term consumption of a high-carbohydrate diet (HCD) would cause the hepatic histopathological and metabolic abnormalities that characterize nonalcoholic steatohepatitis (NASH) in a desert gerbil, Gerbillus gerbillus. Compared to natural diet, HCD leads to several metabolic disorders including adiposity, dyslipidemia, insulin resistance, ectopic fat deposition in the liver, which were associated with higher levels of transcripts of genes involved with fat synthesis, endoplasmic reticulum (ER) stress, and fibrosis...
September 30, 2016: Comptes Rendus Biologies
Melania Manco, Antonella Mosca, Francesco De Peppo, Romina Caccamo, Renato Cutrera, Ugo Giordano, Cristiano De Stefanis, Anna Alisi, Ulrich Baumann, Gianfranco Silecchia, Valerio Nobili
OBJECTIVE: To determine whether bariatric surgery is effective for the treatment of nonalcoholic steatohepatitis (NASH) in adolescence, we compared the efficacy of laparoscopic sleeve gastrectomy (LSG) with that of lifestyle intervention (nonsurgical weight loss [NSWL]) for NASH reversal in obese adolescents. STUDY DESIGN: Obese (body mass index ≥ 35 kg/m(2)) adolescents (13-17 years of age) with biopsy-proven NAFLD underwent LSG, lifestyle intervention plus intragastric weight loss devices (IGWLD), or only NSWL...
September 30, 2016: Journal of Pediatrics
Ángel Brea, Xavier Pintó, Juan F Ascaso, Mariano Blasco, Ángel Díaz, Pedro González-Santos, Antonio Hernández Mijares, Teresa Mantilla, Jesús Millán, Juan Pedro-Botet
Non-alcoholic fatty liver disease (NAFLD) comprises a series of histologically lesions similar to those induced by alcohol consumption in people with very little or no liver damage. The importance of NAFLD is its high prevalence in the Western world and, from the point of view of the liver, in its gradual progression from steatosis to steatohepatitis, cirrhosis, and liver cancer. During the last decade it has been observed that NAFLD leads to an increased cardiovascular risk with acceleration of arteriosclerosis and events related to it, being the main cause of its morbidity and mortality...
September 27, 2016: Clínica e Investigación en Arteriosclerosis
Ángel Brea, Xavier Pintó, Juan F Ascaso, Mariano Blasco, Ángel Díaz, Pedro González-Santos, Antonio Hernández-Mijares, Teresa Mantilla, Jesús Millán, Juan Pedro-Botet
Disease nonalcoholic fatty liver disease (NAFLD) comprises a series of histologically similar to those induced by alcohol consumption in people with very little or no liver damage same. The importance of NAFLD is its high prevalence in our Western societies, from the point of view liver in its progressive evolution from steatosis to steatohepatitis, cirrhosis and liver cancer. During the last decade it has been observed that NAFLD leads to an increased cardiovascular risk with accelerated atherosclerosis and cardiovascular events, the leading cause of morbidity and mortality...
September 27, 2016: Clínica e Investigación en Arteriosclerosis
Elizabeth Hernández-Pérez, Plácido Enrique León García, Norma Edith López-Díazguerrero, Fernando Rivera-Cabrera, Elizabeth Del Ángel Benítez
Non-alcoholic fatty liver disease refers to a disease spectrum that ranges from steatosis to non-alcoholic steatohepatitis, which leads to fibrosis, cirrhosis and hepatocellular carcinoma. Given the increasing prevalence of obesity worldwide, the incidence of non-alcoholic fatty liver disease has become a world health problem. Non-alcoholic fatty liver disease is considered to be the hepatic manifestation of metabolic syndrome associated with insulin resistance, central obesity, and type 2 diabetes mellitus...
September 13, 2016: Medwave
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