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https://www.readbyqxmd.com/read/29156441/modeling-spray-drift-and-runoff-related-inputs-of-pesticides-to-receiving-water
#1
Xuyang Zhang, Yuzhou Luo, Kean S Goh
Pesticides move to surface water via various pathways including surface runoff, spray drift and subsurface flow. Little is known about the relative contributions of surface runoff and spray drift in agricultural watersheds. This study develops a modeling framework to address the contribution of spray drift to the total loadings of pesticides in receiving water bodies. The modeling framework consists of a GIS module for identifying drift potential, the AgDRIFT model for simulating spray drift, and the Soil and Water Assessment Tool (SWAT) for simulating various hydrological and landscape processes including surface runoff and transport of pesticides...
November 17, 2017: Environmental Pollution
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/29154966/determinants-of-fibrosis-progression-and-regression-in-nash
#3
REVIEW
Detlef Schuppan, Rambabu Surabattula, Xiao Yu Wang
Cirrhosis has become the major liver related clinical endpoint in nonalcoholic steatohepatitis. However, progression to cirrhosis is less predictable in NASH compared to other chronic liver diseases. This is due to the complex and multifactorial etiology of NASH, which is determined by life style and nutrition, multiple genetic and epigenetic factors, and a prominent role of hepatic and extrahepatic comorbidities. Thus modest changes in these cofactors can also induce fibrosis regression, at least in precirrhotic patients...
November 14, 2017: Journal of Hepatology
https://www.readbyqxmd.com/read/29154965/noninvasive-assessment-of-nonalcoholic-fatty-liver-disease-clinical-prediction-rules-and-blood-based-biomarkers
#4
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/29154964/lipotoxicity-and-the-gut-liver-axis-in-nash-pathogenesis
#5
REVIEW
Fabio Marra, Gianluca Svegliati-Baroni
The pathogenesis of nanoalcoholic fatty liver disease is still incompletely understood, in particolar the mechanisms whereby a minority of patients develop a more severe phenotype characterized by hepatocellular damage, inflammation, and fibrosis. In this review we discuss two pivotal aspects of the pathogenesis of NASH. We first analyze the initial mechanisms responsible of hepatocellular damage and inflammation, which derive from the toxic effects of excess lipids. Accumulating data indicate that the total amount of triglycerides stored in hepatocytes is not the major determinant of lipotoxicity, and that specific lipid classes act as damaging agents on liver cells...
November 14, 2017: Journal of Hepatology
https://www.readbyqxmd.com/read/29154799/integrative-omics-data-analyses-of-repeated-dose-toxicity-of-valproic-acid-in-vitro-reveal-new-mechanisms-of-steatosis-induction
#6
Simone G J van Breda, Sandra M H Claessen, Marcel van Herwijnen, Daniël H J Theunissen, Danyel G J Jennen, Theo M C M de Kok, Jos C S Kleinjans
Valproic acid (VPA) is a very potent anti-cancer and neuro-protective drug probably by its HCAC inhibiting properties, which may cause steatosis in the liver. The present study investigates the effect of repetitive VPA treatment of primary human hepatocytes (PHH) on whole genome gene expression-, DNA methylation-, and miRNA changes, using microarrays and integrated data analyses. PHH were exposed to a non-cytotoxic dose of VPA for 5days daily which induced lipid accumulation. Part of the PHH was left untreated for 3days for studying the persistence of 'omics' changes...
November 14, 2017: Toxicology
https://www.readbyqxmd.com/read/29154779/letrozole-pre-treatment-prior-to-medical-termination-of-pregnancy-a-systematic-review
#7
Christopher M Nash, Lauren Philp, Prakesh Shah, Kellie E Murphy
OBJECTIVE(S): The purpose of this systematic review was to evaluate the efficacy of pretreatment with letrozole prior to either a first or second trimester medical termination of pregnancy. STUDY DESIGN: We searched letrozole, femara, aromatase inhibitors, abortifacient agents, termination of pregnancy, and labour induction in MEDLINE, EMBASE, Cochrane Database, Google Scholar, and PubMed from inception of each database until September 2015 with no language limitation...
November 14, 2017: Contraception
https://www.readbyqxmd.com/read/29154599/negative-outcomes-after-morally-injurious-experiences-a-replication-and-extension
#8
Steven Lloyd Lancaster
OBJECTIVE: The current study replicates and extends a model of the relationship between morally injurious experiences, moral emotions, and posttraumatic stress disorder (PTSD; Jordan, Eisen, Bolton, Nash, & Litz, 2017). The current study builds on this earlier work by including broader measures of moral emotions and by including an assessment of symptoms of depression. METHOD: An online survey, distributed using crowdsourcing software, was completed by 161 military veterans...
November 20, 2017: Psychological Trauma: Theory, Research, Practice and Policy
https://www.readbyqxmd.com/read/29154469/novel-non-alcoholic-steatohepatitis-model-with-histopathological-and-insulin-resistant-features
#9
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/29153294/impact-of-family-history-of-substance-abuse-on-admission-opioid-dose-depressive-symptoms-and-pain-catastrophizing-in-patients-with-chronic-pain
#10
Elizabeth L Pestka, Julia Craner, Michele Evans, Virginia Nash, Njoki Kimondo, Deborah Pestka, Larissa Loukianova, Jeannie Sperry
The objectives of this study were to examine association between a family history of substance abuse and admission morphine equivalent dose, depression and pain catastrophizing screening scores, as well as reported personal history of substance use. The retrospective research was completed in an interdisciplinary three-week pain rehabilitation center. The subject cohort included admissions from January through December 2014 with 351 datasets for family history of substance abuse and oral morphine equivalency and 341 for depression, pain catastrophizing and use of substances...
November 15, 2017: Pain Management Nursing: Official Journal of the American Society of Pain Management Nurses
https://www.readbyqxmd.com/read/29152605/hepatic-natural-killer-t-cell-and-cd8-t-cell-signatures-in-mice-with-nonalcoholic-steatohepatitis
#11
Jashdeep Bhattacharjee, Michelle Kirby, Samir Softic, Lili Miles, Rosa-Maria Salazar-Gonzalez, Pranav Shivakumar, Rohit Kohli
Hepatic inflammation is a key pathological feature of Nonalcoholic Steatohepatitis (NASH). Natural Killer T-cells (NKT) and CD8+ T-cells are known to play an important role in obesity related adipose tissue inflammation. We hypothesized that these same inflammatory phenotypes would be present in progressive NASH. We used a previously established high fat high carbohydrate (HFHC) murine obesogenic diet model of progressive NASH to investigate the role of NKT cells and CD8+ T-cells in C57Bl6/J mice. Further, to better understand the impact of these cell populations; CD1d-deficient and CD8+ T-cell depleted mice were subjected to HFHC diet for 16 weeks...
June 2017: Hepatol Commun
https://www.readbyqxmd.com/read/29151501/the-efficacy-of-corticosteroid-therapy-in-a-patient-with-nonalcoholic-steatohepatitis-overlapping-autoimmune-hepatitis-a-case-report
#12
Takuya Komura, Hajime Ohta, Takuya Seike, Yoshiaki Shimizu, Ryotaro Nakai, Hitoshi Omura, Takashi Kagaya, Satomi Kasashima, Atsuhiro Kawashima, Sakae Oba, Kennichi Harada, Shuichi Kaneko, Masashi Unoura
The overlap of multiple liver diseases can cause the disease activity and severity to worsen rapidly in some cases. We rarely see patients with non-alcoholic steatohepatitis (NASH) with overlapping autoimmune hepatitis (AIH). A 64-year-old woman who had been prescribed oral drugs to treat diabetes and hypertension (metformin 500 mg/day and voglibose 0.9 mg/day, and termisartan 40 mg/day and amlodipine 5 mg/day, respectively) was diagnosed with NASH with histological confirmation. At 68 years of age, her liver injury worsened with an IgG of 2,871 mg/dL and a high serum anti-nuclear antibody (ANA) level of 2,560...
November 20, 2017: Internal Medicine
https://www.readbyqxmd.com/read/29151428/continuous-positive-airway-pressure-in-patients-with-obstructive-sleep-apnea-and-non-alcoholic-steatohepatitis-a-systematic-review-and-meta-analysis
#13
Gonzalo Labarca, Rodrigo Cruz, Jorge Jorquera
STUDY OBJECTIVES: Several studies have reported an association between obstructive sleep apnea (OSA) and several extra-pulmonary issues, such as arterial hypertension and insulin resistance. In recent years, the associations between OSA, non-alcoholic fatty liver disease, and non-alcoholic steatohepatitis (NASH) have been published; however, there is a gap between experimental and clinical studies regarding the efficacy of continuous positive airway pressure (CPAP) treatment in patient populations with these conditions...
November 15, 2017: Journal of Clinical Sleep Medicine: JCSM: Official Publication of the American Academy of Sleep Medicine
https://www.readbyqxmd.com/read/29151327/serum-matrix-metalloproteinase-1-level-represents-disease-activity-as-opposed-to-fibrosis-in-patients-with-histologically-proven-nonalcoholic-steatohepatitis
#14
Wataru Ando, Hiroaki Yokomori, Nobuhiro Tsutsui, Eigoro Yamanouchi, Yutaka Suzuki, Masaya Oda, Yutaka Inagaki, Katsuya Otori, Isao Okazaki
Background/Aims: Nonalcoholic steatohepatitis (NASH) is prevalent in both economically developed and developing countries. Twenty percent of NASH progresses to cirrhosis with/without hepatocellular carcinoma, and there is an urgent need to find biomarkers for early diagnosis and monitoring progression of the disease. Using immunohistochemical and immunoelectron microscopic examination we previously reported that expression of matrix metalloproteinase-1 (MMP-1) increased in monocytes, Kupffer cells and hepatic stellate cells in early stage NASH...
November 20, 2017: Clinical and Molecular Hepatology
https://www.readbyqxmd.com/read/29149075/a-game-theoretic-approach-for-balancing-energy-consumption-in-clustered-wireless-sensor-networks
#15
Liu Yang, Yinzhi Lu, Lian Xiong, Yang Tao, Yuanchang Zhong
Clustering is an effective topology control method in wireless sensor networks (WSNs), since it can enhance the network lifetime and scalability. To prolong the network lifetime in clustered WSNs, an efficient cluster head (CH) optimization policy is essential to distribute the energy among sensor nodes. Recently, game theory has been introduced to model clustering. Each sensor node is considered as a rational and selfish player which will play a clustering game with an equilibrium strategy. Then it decides whether to act as the CH according to this strategy for a tradeoff between providing required services and energy conservation...
November 17, 2017: Sensors
https://www.readbyqxmd.com/read/29148806/discovery-of-tropifexor-ljn452-a-highly-potent-non-bile-acid-fxr-agonist-for-the-treatment-of-cholestatic-liver-diseases-and-nonalcoholic-steatohepatitis-nash
#16
David C Tully, Paul V Rucker, Donatella Chianelli, Jennifer Williams, Agnes Vidal, Phil B Alper, Daniel Mutnick, Badry Bursulaya, James Schmeits, Xiangdong Wu, Dingjiu Bao, Jocelyn Zoll, Young Kim, Todd Groessl, Peter McNamara, H Martin Seidel, Valentina Molteni, Bo Liu, Andrew Phimister, Sean B Joseph, Bryan Laffitte
The farnesoid X receptor (FXR) is a nuclear receptor that acts as a master regulator of bile acid metabolism and signaling. Activation of FXR inhibits bile acid synthesis and increases bile acid conjugation, transport, and excretion, thereby protecting the liver from the harmful effects of bile accumulation, leading to considerable interest in FXR as a therapeutic target for the treatment of cholestasis and non-alcoholic steatohepatitis. We identified a novel series of highly potent non-bile acid FXR agonists that introduce a bicyclic nortropine-substituted benzothiazole carboxylic acid moiety onto a trisubstituted isoxazole scaffold...
November 16, 2017: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29148175/treatment-efficacy-of-a-probiotic-preparation-for-non-alcoholic-steatohepatitis-a-pilot-trial
#17
Elina Manzhalii, Oleksandr Virchenko, Tetyana Falalyeyeva, Tetyana Beregova, Wolfgang Stremmel
AIM: To evaluate the therapeutic effect of a probiotic cocktail containing lactobacilli, bifidobacteria, and Streptococcus thermophilus on non-alcoholic steatohepatitis (NASH). METHODS: In this open-label trial, 75 patients with NASH fed a low-fat/low-calorie diet were randomly divided into the control group (n = 37) and the experimental group (n = 38) also receiving the probiotic cocktail once daily for 12 weeks. RESULTS: All patients were diagnosed with fatty liver by ultrasound examination and had elevated levels of gamma-glutamyl transferase (GGT) and alanine aminotransferase (ALT), and slightly increased body mass index (BMI) and cholesterol levels...
November 17, 2017: Journal of Digestive Diseases
https://www.readbyqxmd.com/read/29146119/an-updated-meta-analysis-of-pioglitazone-exposure-and-bladder-cancer-and-comparison-to-the-drug-s-effect-on-cardiovascular-disease-and-non-alcoholic-steatohepatitis
#18
Mayer B Davidson, Deyu Pan
AIM: We performed a meta-analysis of epidemiological studies evaluating exposure to pioglitazone and the risk for bladder cancer and compared these results to the drug's effects on cardiovascular disease (CVD) and non-alcoholic steatohepatitis (NASH). METHODS: Pubmed and Embase were searched for cohort and case control studies for all years through 2016. RESULTS: Data from 17 papers were analyzed. In cohort studies, 822 of 357,888 pioglitazone-exposed patients (0...
November 13, 2017: Diabetes Research and Clinical Practice
https://www.readbyqxmd.com/read/29145775/factors-predicting-non-alcoholic-steatohepatitis-nash-and-advanced-fibrosis-in-patients-with-non-alcoholic-fatty-liver-disease-nafld
#19
Abbas Ali Tasneem, Nasir Hassan Luck, Zain Majid
Introduction To determine the factors predicting non-alcoholic steatohepatitis (NASH) and advanced fibrosis in patients with non-alcoholic fatty liver disease (NAFLD). Methodology All patients aged >18 years and having a fatty liver on abdominal ultrasound (US), presenting from January 2011 to January 2017, were included. A liver biopsy was performed on all the patients. Results Of 96 patients undergoing liver biopsy for non-alcoholic fatty liver disease (NAFLD), 76 (79.2%) were men. On liver US, diffuse fatty liver (DFL) was noted in 68 (70...
January 1, 2017: Tropical Doctor
https://www.readbyqxmd.com/read/29145614/methionine-and-choline-deficient-mcd-model-in-predicting-adverse-drug-reactions-in-human-nash
#20
Hui Li, Erica Toth, Nathan J Cherrington
In the past few decades, great conceptual and technological advances have been made in the field of toxicology, but animal model-based research still remains one of the most widely-used and readily available tools for furthering our current knowledge. However, animal models are not perfect in predicting all systemic toxicity in humans. Extrapolating animal data to accurately predict human toxicities remains a challenge, and researchers are obligated to question the appropriateness of their chosen animal model...
November 14, 2017: Toxicological Sciences: An Official Journal of the Society of Toxicology
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