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https://www.readbyqxmd.com/read/28109005/the-mboat7-variant-rs641738-increases-inflammation-and-fibrosis-in-chronic-hepatitis-b
#1
Khaled Thabet, Henry Lik Yuen Chan, Salvatore Petta, Alessandra Mangia, Thomas Berg, Andre Boonstra, Willem P Brouwer, Maria Lorena Abate, Vincent Wai-Sun Wong, Maiiada Nazmy, Janett Fischer, Christopher Liddle, Jacob George, Mohammed Eslam
Chronic hepatitis B (CHB) is characterized by hepatic inflammation that promotes progression to cirrhosis and predisposes to the development of hepatocellular carcinoma (HCC). Subtle inter-individual genetic variation, viral and environmental factors interact to determine the disease progression between individuals. Recently, the rs641738 Membrane Bound O-Acyltransferase Domain Containing 7 (MBOAT7) polymorphism was demonstrated to influence histological liver damage in alcoholic liver disease, nonalcoholic fatty liver disease and hepatitis C, but no data are available for CHB...
January 20, 2017: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/28107794/a-study-on-the-gc-ms-analysis-of-bioactive-components-and-pancreato-protective-effect-of-methanolic-extract-of-brassica-oleracea-l-var-botrytis
#2
Sadanandan Rajapriya, Arumugam Geetha, Kavasseri Ganesan Kripa
The ever-increasing problem of pancreatitis due to alcohol abuse demands evaluation of novel drugs of plant origin. This study explores the therapeutic effects of the methanolic extract of Brassica oleraceae (MEBO) on ethanol and cerulein induced pancreatitis in rats. The MEBO was subjected to GC-MS and HPLC analysis. Male albino Wistar rats were divided into various groups, fed with alcohol (36% of total calories for 5 weeks) and cerulein (20 μg/kg b.wt i.p, weekly thrice for last three weeks) with or without MEBO (40 mg/kg b...
January 20, 2017: Natural Product Research
https://www.readbyqxmd.com/read/28104990/sitagliptin-in-patients-with-non-alcoholic-steatohepatitis-a-randomized-placebo-controlled-trial
#3
Tisha R Joy, Charles A McKenzie, Rommel G Tirona, Kelly Summers, Shannon Seney, Subrata Chakrabarti, Neel Malhotra, Melanie D Beaton
AIM: To evaluate the effect of sitagliptin vs placebo on histologic and non-histologic parameters of non-alcoholic steatohepatitis (NASH). METHODS: Twelve patients with biopsy-proven NASH were randomized to sitagliptin (100 mg daily) (n = 6) or placebo (n = 6) for 24 wk. The primary outcome was improvement in liver fibrosis after 24 wk. Secondary outcomes included evaluation of changes in NAFLD activity score (NAS), individual components of NAS (hepatocyte ballooning, lobular inflammation, and steatosis), glycemic control and insulin resistance [including measurements of glycated hemoglobin (HbA1C) and adipocytokines], lipid profile including free fatty acids, adipose distribution measured using magnetic resonance imaging (MRI), and thrombosis markers (platelet aggregation and plasminogen activator inhibitor 1 levels)...
January 7, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28104585/rcad-bip-pathway-is-necessary-for-the-proper-synthesis-of-digestive-enzymes-and-the-secretory-function-of-the-exocrine-pancreas
#4
Camille Miller, Yafei Cai, Tadd Patton, Sarai Graves, Honglin Li, Maria Eugenia Sabbatini
Alcoholism causes an imbalance of endoplasmic reticulum (ER) homeostasis in pancreatic acini. In those cells, the ER is involved in the synthesis and folding of pancreatic enzymes. Ufm1 (Ubiquitin-fold modifier 1) is part of a novel ubiquitin-like modification system involved in maintaining ER homeostasis. Among the components of the Ufm1 system, Regulator of C53 and DDRGK1 (RCAD) has recently been identified as an Ufm1-specific E3 ligase that promotes ufmylation of DDRGK1, a RCAD-interacting protein. We determined the importance of RCAD in the proper synthesis and secretion of pancreatic enzymes using RCAD-deficient mice...
January 19, 2017: American Journal of Physiology. Gastrointestinal and Liver Physiology
https://www.readbyqxmd.com/read/28103293/synergistic-interaction-of-light-alcohol-administration-in-the-presence-of-mild-iron-overload-in-a-mouse-model-of-liver-injury-involvement-of-triosephosphate-isomerase-nitration-and-inactivation
#5
Wanxia Gao, Jie Zhao, Zhonghong Gao, Hailing Li
It is well known that iron overload promotes alcoholic liver injury, but the doses of iron or alcohol used in studies are usually able to induce liver injury independently. Little attention has been paid to the coexistence of low alcohol consumption and mild iron overload when either of them is insufficient to cause obvious liver damage, although this situation is very common among some people. We studied the interactive effects and the underlining mechanism of mild doses of iron and alcohol on liver injury in a mouse model...
2017: PloS One
https://www.readbyqxmd.com/read/28098394/use-of-asian-samples-in-genetic-research-of-alcohol-use-disorders-genetic-variation-of-alcohol-metabolizing-enzymes-and-the-effects-of-acetaldehyde
#6
Sachio Matsushita, Susumu Higuchi
BACKGROUND AND OBJECTIVES: Epidemiological studies consistently find that Asian populations report lower rates of alcohol use disorders (AUD) compared with other racial groups. These differences result from a variety of biological, genetic, and environmental influences, some of which are related to the metabolism of alcohol. We will review several studies of these metabolic factors, including several alcohol clamping studies conducted in our laboratory, that provide further insight into the role of the alcohol metabolizing genes and drinking behavior among Japanese drinkers...
January 18, 2017: American Journal on Addictions
https://www.readbyqxmd.com/read/28097692/structural-role-of-a-conserved-active-site-cis-proline-in-the-thermotoga-maritima-acetyl-esterase-from-the-carbohydrate-esterase-family-7
#7
Mrityunjay K Singh, Narayanan Manoj
A conserved cis proline residue located in the active site of Thermotoga maritima acetyl esterase (TmAcE) from the carbohydrate esterase family 7 (CE7) has been substituted by alanine. The residue was known to play a crucial role in determining the catalytic properties of the enzyme. To elucidate the structural role of the residue, the crystal structure of the Pro228Ala variant (TmAcEP228A ) was determined at 2.1 Å resolution. The replacement does not affect the overall secondary, tertiary and quaternary structures and moderately decreases the thermal stability...
January 18, 2017: Proteins
https://www.readbyqxmd.com/read/28096191/allosteric-modulation-of-the-substrate-specificity-of-acyl-coa-wax-alcohol-acyltransferase-2-awat2
#8
Jason M Arne, Made Airanthi K Widjaja-Adhi, Taylor Hughes, Kevin W Huynh, Josie A Silvaroli, Sylwia Chelstowska, Vera Y Moiseenkova-Bell, Marcin Golczak
The esterification of alcohols with fatty acids is a universal mechanism to form inert storage forms of sterols, di- and triacylglycerols, and retinoids. In ocular tissues, formation of retinyl esters is an essential step in the enzymatic regeneration of the visual chromophore (11-cis-retinal). Acyl-CoA wax alcohol acyltransferase 2 (AWAT2), also known as multifunctional O-acyltransferase (MFAT), is an integral membrane enzyme with a broad substrate specificity that has been shown to preferentially esterify 11-cis-retinol and thus contribute to formation of readily available pool of cis retinoids in the eye...
January 17, 2017: Journal of Lipid Research
https://www.readbyqxmd.com/read/28095641/melatonin-ameliorates-alcohol-induced-bile-acid-synthesis-by-enhancing-mir-497-expression
#9
Yong Deuk Kim, Seung-Lark Hwang, Eun-Joo Lee, Hyeong-Mi Kim, Myung-Jin Chung, Ahmed K Elfadl, Sung-Eun Lee, Balachandar Nedumaran, Robert A Harris, Kyu-Shik Jeong
Alcoholic liver disease is a major cause of chronic liver disease worldwide and cannabinoid receptor type 1 (CB1R) is involved in a diverse metabolic diseases. B-cell translocation gene 2 (BTG2) and yin yang 1 (YY1) are a potent regulator of biological conditions. Melatonin plays a crucial role in regulating diverse physiological functions and metabolic homeostasis. MicroRNAs are key regulators of various biological processes. Herein, we demonstrate that melatonin improves bile acid synthesis in the liver of alcohol-fed mice by controlling miR-497 expression...
January 17, 2017: Journal of Pineal Research
https://www.readbyqxmd.com/read/28093656/measurement-of-crude-cell-extract-glycerol-dehydratase-activity-in-recombinant-escherichia-coli-using-coupled-enzyme-reactions
#10
Mugesh Sankaranarayanan, Eunhee Seol, Yeonhee Kim, Ashish Singh Chauhan, Sunghoon Park
Glycerol dehydratase (GDHt), which converts glycerol to 3-hydroxypropionaldehyde, is essential to the production of 1,3-propanediol (1,3-PDO) or 3-hydroxypropionic acid (3-HP). A reliable GDHt activity assay in crude-cell extract was developed. In the assay, GDHt converted 1,2-propanediol (1,2-PDO) to propionaldehyde, which was further converted to 1-propionic acid by aldehyde dehydrogenase (KGSADH) or to 1-propanol by yeast-alcohol dehydrogenase (yADH), while the NADH concentration change was monitored spectrophotometrically...
January 16, 2017: Journal of Industrial Microbiology & Biotechnology
https://www.readbyqxmd.com/read/28093125/hairpin-stabilized-fluorescent-silver-nanoclusters-for-quantitative-detection-of-nad-and-monitoring-nad-nadh-based-enzymatic-reactions
#11
Priyamvada Jain, Babina Chakma, Sanjukta Patra, Pranab Goswami
A set of 90 mer long ssDNA candidates, with different degrees of cytosine (C-levels) (% and clusters) was analyzed for their function as suitable Ag-nanocluster (AgNC) nucleation scaffolds. The sequence (P4) with highest C-level (42.2%) emerged as the only candidate supporting the nucleation process as evident from its intense fluorescence peak at λ660 nm. Shorter DNA subsets derived from P4 with only stable hairpin structures could support the AgNC formation. The secondary hairpin structures were confirmed by PAGE, and CD studies...
March 1, 2017: Analytica Chimica Acta
https://www.readbyqxmd.com/read/28093073/application-of-meta-omics-techniques-to-understand-greenhouse-gas-emissions-originating-from-ruminal-metabolism
#12
REVIEW
Robert J Wallace, Timothy J Snelling, Christine A McCartney, Ilma Tapio, Francesco Strozzi
Methane emissions from ruminal fermentation contribute significantly to total anthropological greenhouse gas (GHG) emissions. New meta-omics technologies are beginning to revolutionise our understanding of the rumen microbial community structure, metabolic potential and metabolic activity. Here we explore these developments in relation to GHG emissions. Microbial rumen community analyses based on small subunit ribosomal RNA sequence analysis are not yet predictive of methane emissions from individual animals or treatments...
January 16, 2017: Genetics, Selection, Evolution: GSE
https://www.readbyqxmd.com/read/28091279/aflatoxin-m1-in-human-breast-milk-in-shahrekord-iran-and-association-with-dietary-factors
#13
Tina Jafari, Aziz A Fallah, Soleiman Kheiri, Abdolmajid Fadaei, Sayed Asadollah Amini
This survey was conducted to determine the occurrence and levels of aflatoxin M1 (AFM1) in 250 breast milk samples of lactating mothers, obtained from urban and rural regions of Shahrekord, Iran. Moreover, the association between AFM1 occurrence levels and dietary factors were assessed. AFM1 analysis was carried out using the competitive enzyme-linked immunosorbent assay (ELISA) technique for screening and high-performance liquid chromatography with fluorescence detection (HPLC-FLD) for confirmatory purposes...
January 16, 2017: Food Additives & Contaminants. Part B, Surveillance
https://www.readbyqxmd.com/read/28089214/prevalence-of-chronic-pancreatitis-results-of-a-primary-care-physician-based-population-study
#14
Gabriele Capurso, Livia Archibugi, Piera Pasquali, Alessandro Aceti, Paolo Balducci, Patrizia Bianchi, Francesco Buono, Stefano Camerucci, Rosanna Cantarini, Sergio Centofanti, Patrizia Colantonio, Riccarda Cremaschi, Sergio Crescenzi, Caterina Di Mauro, Davide Di Renzi, Andrea Filabozzi, Alfonso Fiorillo, Giuseppe Giancaspro, Paola Giovannetti, Giuseppe Lanna, Claudio Medori, Emilio Merletti, Enzo Nunnari, Francesca Paris, Marco Pavone, Angela Piacenti, Almerindo Rossi, Maria Cristina Scamuffa, Giovanni Spinelli, Marco Taborchi, Biagio Valente, Antonella Villanova, Alberto Chiriatti, Gianfranco Delle Fave
BACKGROUND: Data on chronic pancreatitis prevalence are scanty and usually limited to hospital-based studies. AIM: Investigating chronic pancreatitis prevalence in primary care. METHODS: Participating primary care physicians reported the prevalence of chronic pancreatitis among their registered patients, environmental factors and disease characteristics. The data were centrally reviewed and chronic pancreatitis cases defined according to M-ANNHEIM criteria for diagnosis and severity and TIGAR-O classification for etiology...
December 27, 2016: Digestive and Liver Disease
https://www.readbyqxmd.com/read/28088781/mir-30c-5p-ameliorates-hepatic-steatosis-in-leptin-receptor-deficient-db-db-mice-via-down-regulating-fasn
#15
Jiahui Fan, Huaping Li, Xiang Nie, Zhongwei Yin, Yanru Zhao, Chen Chen, Dao Wen Wang
Approximately 15-40% of the general adult population suffers from non-alcoholic fatty liver disease (NAFLD) worldwide. However, no drug is currently licensed for its treatment. In this study, we observed a significant reduction of miR-30c-5p in the liver of leptin receptor-deficient (db/db) mice. Remarkably, recombinant adeno-associated virus (rAAV)-mediated delivery of miR-30c-5p was sufficient to attenuate triglyceride accumulation and hepatic steatosis in db/db mice. Through computational prediction, KEGG analysis and Ago2 co-immunoprecipitation, we identified that miR-30c-5p directly targeted fatty acid synthase, a key enzyme in fatty acid biosynthesis...
January 9, 2017: Oncotarget
https://www.readbyqxmd.com/read/28088750/continuous-minimally-invasive-alcohol-monitoring-using-microneedle-sensor-arrays
#16
A M Vinu Mohan, Joshua Ray Windmiller, Rupesh K Mishra, Joseph Wang
The present work describes an attractive skin-worn microneedle sensing device for the minimally invasive electrochemical monitoring of subcutaneous alcohol. The device consists of an assembly of pyramidal microneedle structures integrated with Pt and Ag wires, each with a microcavity opening. The microneedle aperture was modified by electropolymerizing o-phenylene diamine onto the Pt wire microtransducer, followed by the immobilization of alcohol oxidase (AOx) in an intermediate chitosan layer, along with an outer Nafion layer...
January 10, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/28088126/severe-hypoalbuminemia-and-steatohepatitis-leading-to-death-in-a-young-vegetarian-female-8-months-after-mini-gastric-bypass-a-case-report
#17
Mohammad Kermansaravi, Mohammad Reza Abdolhosseini, Ali Kabir, Abdolreza Pazouki
BACKGROUND: Hypoalbuminemia is an important complication after Mini Gastric Bypass (MGB) and is more frequent in vegetarians, diabetic nephropathy, and alcoholic and liver disease patients. The patients must be followed in regular intervals and serum albumin must be checked in every visit after MGB. Hypoalbuminemia must be prevented by good protein regimes. CASE SUMMARY: A 29 years old female was admitted 8 month after Laparoscopic Mini Gastric Bypass with malaise, dyspnea, icter, nausea, vomiting, diarrhea and edema of extremities from 2 weeks before admission...
December 11, 2016: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28078249/effects-of-urtica-dioica-supplementation-on-blood-lipids-hepatic-enzymes-and-nitric-oxide-levels-in-type-2-diabetic-patients-a-double-blind-randomized-clinical-trial
#18
Alidad Amiri Behzadi, Hamid Kalalian-Moghaddam, Amir Hossein Ahmadi
OBJECTIVE: Oxidative stress plays an important role in the development of diabetic complications including metabolic abnormality-induced diabetic micro-vascular and macro-vascular complications. Urtica dioica L. (U. dioica) has been traditionally used in Iranian medicine as an herbal remedy for hypoglycemic or due to its anti-inflammatory properties. The aim of the present study was to evaluate the effects of hydro-alcoholic extract of U. dioica on blood lipids, hepatic enzymes and nitric oxide levels in patients with type 2 diabetes mellitus...
November 2016: Avicenna Journal of Phytomedicine
https://www.readbyqxmd.com/read/28077967/integrated-omics-analyses-reveal-the-details-of-metabolic-adaptation-of-clostridium-thermocellum-to-lignocellulose-derived-growth-inhibitors-released-during-the-deconstruction-of-switchgrass
#19
Suresh Poudel, Richard J Giannone, Miguel Rodriguez, Babu Raman, Madhavi Z Martin, Nancy L Engle, Jonathan R Mielenz, Intawat Nookaew, Steven D Brown, Timothy J Tschaplinski, David Ussery, Robert L Hettich
BACKGROUND: Clostridium thermocellum is capable of solubilizing and converting lignocellulosic biomass into ethanol. Although much of the work-to-date has centered on characterizing this microbe's growth on model cellulosic substrates, such as cellobiose, Avicel, or filter paper, it is vitally important to understand its metabolism on more complex, lignocellulosic substrates to identify relevant industrial bottlenecks that could undermine efficient biofuel production. To this end, we have examined a time course progression of C...
2017: Biotechnology for Biofuels
https://www.readbyqxmd.com/read/28074588/care-under-the-influence
#20
Joseph J Fins, Samantha F Knowlton
A forty-year-old man is brought to the emergency room by his wife at five in the morning, two hours after he fell down the stairs at home, hitting his head and injuring his arm. He tells the ER physician that he got up to get a drink of water and tripped in the dark. His speech is slurred, and he smells strongly of alcohol. Lab results reveal elevated liver enzymes, and his blood alcohol level is 0.1. His medical history is unremarkable. When asked about his alcohol consumption, he says he usually has one or two drinks a night with dinner but that he drinks more on holidays and special occasions...
January 2017: Hastings Center Report
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