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https://www.readbyqxmd.com/read/28239368/connection-of-nicotine-to-diet-induced-obesity-and-non-alcoholic-fatty-liver-disease-cellular-and-mechanistic-insights
#1
REVIEW
Amiya P Sinha-Hikim, Indrani Sinha-Hikim, Theodore C Friedman
Non-alcoholic fatty liver disease (NAFLD) poses a serious health hazard affecting 20-40% of adults in the general population in the USA and over 70% of the obese and extremely obese people. In addition to obesity, nicotine is recognized as a risk factor for NAFLD, and it has been reported that nicotine can exaggerate obesity-induced hepatic steatosis. The development of NAFLD has serious clinical complications because of its potential progression from simple hepatic steatosis to non-alcoholic steatohepatitis (NASH), liver cirrhosis, and hepatocellular carcinoma...
2017: Frontiers in Endocrinology
https://www.readbyqxmd.com/read/28238946/involvement-of-pregnane-x-receptor-in-the-suppression-of-carboxylesterases-by-metformin-in-vivo-and-in-vitro-mediated-by-the-activation-of-ampk-and-jnk-signaling-pathway
#2
Enfang Shan, Zhu Zhu, Shuangcheng He, Dongbao Chu, Dinghao Ge, Yunran Zhan, Wei Liu, Jian Yang, Jing Xiong
Type 2 diabetes mellitus (T2D) is a complex metabolic disorder requiring polypharmacy treatment in clinic, with metformin being widely used antihyperglycemic drug. However, the mechanisms of metformin as a perpetrator inducing potential drug-drug interactions and adverse drug reactions are scarcely known to date. Carboxylesterases (CESs) are major hydrolytic enzymes highly expressed in the liver, including mouse carboxylesterase 1d (Ces1d) and Ces1e. In the present study, experiments are designed to investigate the effects and mechanisms of metformin on Ces1d and Ces1e in vivo and in vitro...
February 23, 2017: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28238806/rat-acute-gvhd-is-th1-driven-and-characterized-by-predominant-donor-cd4-t-cell-infiltration-of-skin-and-gut
#3
Margherita Boieri, Pranali Shah, Dasaradha Jalapothu, Olena Zaitseva, Lutz Walter, Bent Rolstad, Christian Naper, Ralf Dressel, Marit Inngjerdingen
Acute graft-versus-host disease (aGvHD) remains a significant hurdle to successful treatment of many hematological disorders. The disease is caused by infiltration of allo-activated donor T cells primarily into the gastrointestinal tract and skin. While cytotoxic T cells mediate direct cellular damage, T helper (Th) cells differentially secrete immunoregulatory cytokines. Acute GvHD is thought to be primarily initiated by Th1 cells but a consensus is still lacking regarding the role of Th2 and Th17 cells. The aim of this study was to determine the contribution of distinct T cell subsets to aGvHD in the rat...
February 23, 2017: Experimental Hematology
https://www.readbyqxmd.com/read/28237915/hepatoprotective-activity-of-butea-monosperma-bark-against-thioacetamide-induced-liver-injury-in-rats
#4
Varinder Kaur, Manish Kumar, Paramjeet Kaur, Sandeep Kaur, Amrit Pal Singh, Satwinderjeet Kaur
For thousands of years, the plant-based natural products have been a source of curative agents for various ailments. Butea monosperma (Fabaceae) has an important place in Indian traditional system of medicine for curing number of disorders. The present study deals with evaluation of hepatoprotective properties of ethyl acetate fraction (Beac) from B. monosperma bark in rat model. In preliminary antioxidant studies, Beac demonstrated pronounced superoxide scavenging (IC50 88.85μg/ml) and anti-lipid peroxidation (IC50 131...
February 23, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28237774/identification-of-urine-tauro-%C3%AE-muricholic-acid-as-a-promising-biomarker-in-polygoni-multiflori-radix-induced-hepatotoxicity-by-targeted-metabolomics-of-bile-acids
#5
Dong-Sheng Zhao, Li-Long Jiang, Ya-Xi Fan, Lei-Chi Dong, Jiang Ma, Xin Dong, Xiao-Jun Xu, Ping Li, Hui-Jun Li
Polygoni Multiflori Radix (PMR) has been widely used as a tonic for centuries. However, hepatotoxicity cases linked to PMR have been frequently reported and appropriate biomarkers for clinical diagnosis are currently lacking. Here, an approach using UPLC-QqQ/MS-based targeted metabolomics of bile acids (BAs) complemented with biochemistry and histopathology was applied to characterize the development and recovery processes of PMR-induced hepatotoxicity in rats and to identify biomarkers. The expression of bile salt export pump (Bsep) and sodium taurocholate cotransporting polypeptide (Ntcp) were evaluated to investigate the underlying mechanism...
February 22, 2017: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/28237722/dapper1-attenuates-hepatic-gluconeogenesis-and-lipogenesis-by-activating-pi3k-akt-signaling
#6
Jian-Ren Kuang, Zhi-Hui Zhang, Wei-Ling Leng, Xiao-Tian Lei, Zi-Wen Liang
Studies have shown that hepatic insulin resistance, a disorder of glucose and lipid metabolism, plays a vital role in type 2 diabetes (T2D). To clarify the function of Dapper1 in glucose and lipid metabolism in the liver, we investigated the relationships between Dapper1 and adenosine triphosphate (ATP)- and Ca(2+)-mediated activation of PI3K/Akt. We observed a reduction in hepatic Dapper1 in db/db (mice that are homozygous for a spontaneous diabetes mutation) and HFD-induced diabetic mice with T2D. Hepatic overexpression of Dapper1 improved hyperglycemia, insulin resistance, and fatty liver...
February 22, 2017: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/28235688/effects-of-cymodocea-nodosa-extract-on-metabolic-disorders-and-oxidative-stress-in-alloxan-diabetic-rats
#7
Rihab Ben Abdallah Kolsi, Hichem Ben Salah, Neila Jardak, Rim Chaaben, Abdelfattah El Feki, Tarak Rebai, Kamel Jamoussi, Noureddine Allouche, Hafedh Belghith, Karima Belghith
This new study aimed to evaluate for the first time the effect of Cymodocea nodosa extract (CNE) on α-amylase activity, hyperglycemia and diabetes complications in the alloxan-induced diabetic rats. The in vitro evaluation and oral administration of CNE to surviving diabetic rats inhibited key enzyme related to hyperglycemia as α-amylase, helped to protect the β cells of the rats from death and damage confirmed by oral glucose test tolerance (OGTT), which leads to decrease in blood glucose level by 49% as compared to untreated diabetic rats...
February 21, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28231052/review-the-role-of-peroxisome-proliferator-activated-receptor-in-the-treatment-of-non-alcoholic-fatty-liver-disease
#8
Xin Sun, Yan Zhang, Meilin Xie
Non-alcoholic fatty liver disease (NAFLD) has been defined as a spectrum of histological abnormalities and is characterized by significant and excessive accumulation of triglycerides in the hepatocytes in patients without alcohol consumption or other diseases. Current studies are targeting new molecular mechanisms that underlie NAFLD and associated metabolic disorders. Many therapeutic targets have been found and used in clinical studies. Peroxisome proliferator-activated receptors (PPARs) are among the potential targets and have been demonstrated to exert a pivotal role in modulation of NAFLD...
March 1, 2017: Acta Pharmaceutica
https://www.readbyqxmd.com/read/28230981/high-potency-phenylquinoxalinone-cystic-fibrosis-transmembrane-conductance-regulator-cftr-activators
#9
Jung-Ho Son, Jie S Zhu, Puay-Wah Phuan, Onur Cil, Andrew P Teuthorn, Colton K Ku, Sujin Lee, Alan S Verkman, Mark J Kurth
We previously identified phenylquinoxalinone CFTRact-J027 (4) as a cystic fibrosis transmembrane conductance regulator (CFTR) activator with an EC50 of ~200 nM, and demonstrated its therapeutic efficacy in mouse models of constipation. Here, structure-activity studies were done on 36 synthesized phenylquinoxalinone analogs to identify compounds with improved potency and altered metabolic stability. Synthesis of the phenylquinoxalinone core was generally accomplished by condensation of 1,2-phenylenediamines with substituted phenyloxoacetates...
February 23, 2017: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28230908/probiotics-for-people-with-hepatic-encephalopathy
#10
REVIEW
Rohan Dalal, Richard G McGee, Stephen M Riordan, Angela C Webster
BACKGROUND: Hepatic encephalopathy is a disorder of brain function as a result of liver failure or portosystemic shunt or both. Both hepatic encephalopathy (clinically overt) and minimal hepatic encephalopathy (not clinically overt) significantly impair patient's quality of life and daily functioning, and represent a significant burden on healthcare resources. Probiotics are live micro-organisms, which when administered in adequate amounts, may confer a health benefit on the host. OBJECTIVES: To determine the beneficial and harmful effects of probiotics in any dosage, compared with placebo or no intervention, or with any other treatment for people with any grade of acute or chronic hepatic encephalopathy...
February 23, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28228103/disease-manifestations-and-burden-of-illness-in-patients-with-acid-sphingomyelinase-deficiency-asmd
#11
REVIEW
Margaret M McGovern, Ruzan Avetisyan, Bernd-Jan Sanson, Olivier Lidove
Acid sphingomyelinase deficiency (ASMD), a rare lysosomal storage disease, is an autosomal recessive genetic disorder caused by different SMPD1 mutations. Historically, ASMD has been classified as Niemann-Pick disease (NPD) types A (NPD A) and B (NPD B). NPD A is associated with a uniformly devastating disease course, with rapidly progressing psychomotor degeneration, leading to death typically by the age of 3 years, most often from respiratory failure. In contrast, the clinical phenotype and life expectancy of patients with NPD B may vary widely...
February 23, 2017: Orphanet Journal of Rare Diseases
https://www.readbyqxmd.com/read/28225953/drug-reaction-with-eosinophilia-and-systemic-symptoms-dress-and-its-relation-with-autoimmunity-in-a-reference-center-in-mexico
#12
Juan Manuel Ruiz Matta, Silvia Méndez Flores, Judith Domínguez Cherit
BACKGROUND: Drug reaction with eosinophilia and systemic symptoms is a severe adverse drug reaction, with a reported mortality of 10%. Long-term outcomes involve organic failure and autoimmune diseases in some populations. OBJECTIVE: To evaluate the clinical prognosis of patients with drug reaction with eosinophilia and systemic symptoms. METHODS: We conducted a retrospective review at a referral hospital in Mexico City in a period of 22 years (1992-2013), looking up for records with diagnosis of DRESS according to RegiSCAR criteria...
January 2017: Anais Brasileiros de Dermatologia
https://www.readbyqxmd.com/read/28225824/caloric-restriction-reduces-the-systemic-progression-of-mouse-aapoaii-amyloidosis
#13
Lin Li, Jinko Sawashita, Xin Ding, Mu Yang, Zhe Xu, Hiroki Miyahara, Masayuki Mori, Keiichi Higuchi
In mouse senile amyloidosis, apolipoprotein (Apo) A-II is deposited extracellularly in many organs in the form of amyloid fibrils (AApoAII). Reduction of caloric intake, known as caloric restriction (CR), slows the progress of senescence and age-related disorders in mice. In this study, we intravenously injected 1 μg of isolated AApoAII fibrils into R1.P1-Apoa2c mice to induce experimental amyloidosis and investigated the effects of CR for the next 16 weeks. In the CR group, AApoAII amyloid deposits in the liver, tongue, small intestine and skin were significantly reduced compared to those of the ad libitum feeding group...
2017: PloS One
https://www.readbyqxmd.com/read/28225543/cuba-s-aging-and-alzheimer-longitudinal-study
#14
Juan de Jesús Llibre-Rodríguez, Adolfo Valhuerdi-Cepero, Ana M López-Medina, Lisseth Noriega-Fernández, Rutbeskia Porto-Álvarez, Milagros A Guerra-Hernández, Rodolfo I Bosch-Bayard, Tania Zayas-Llerena, Elaine Hernandez-Ulloa, Ana L Rodríguez-Blanco, Enrique Salazar-Pérez, Juan C Llibre-Guerra, Jorge J Llibre-Guerra, Beatriz Marcheco-Teruel
Aging and Alzheimer is a prospective, longitudinal cohort study involving 2944 adults aged ≥65 years from selected areas in Cuba's Havana and Matanzas Provinces. This door-to-door study, which began in 2003, includes periodic assessments of the cohort based on an interview; physical exam; anthropometric measurements; and diagnosis of dementia and its subtypes, other mental disorders, and other chronic non-communicable diseases and their risk factors. Information was gathered on sociodemographic characteristics; disability, dependency and frailty; use of health services; and characteristics of care and caregiver burden...
January 2017: MEDICC Review
https://www.readbyqxmd.com/read/28224688/liver-tissue-metabolic-profiling-and-pathways-of-nonalcoholic-steatohepatitis-in-rats
#15
Suwen Qi, Si Huang, Xin Chen, Qin Huo, Ni Xie, Jun Xia
AIM: The mechanisms of nonalcoholic steatohepatitis (NASH) in hepatocytes is unknown, and our aim is to study the tissue metabolic profiling and pathways of NASH. METHODS: We built rat models for simple steatosis and NASH and analyzed the liver extract using a liquid chromatograph-mass spectrometer (LC-MS). The acquired data were processed by multivariate principal component analysis (PCA) and partial least squares discriminant analysis (PLS-DA) to obtain metabolic profiling...
February 22, 2017: Hepatology Research: the Official Journal of the Japan Society of Hepatology
https://www.readbyqxmd.com/read/28224373/drug-induced-liver-injury-in-the-setting-of-glycogenic-hepatopathy
#16
Valmiki Maharaj, Matthew Fitz, Xianzdong Ding
Glycogenic hepatopathy (GH) is an underdiagnosed complication of uncontrolled type 1 diabetes mellitus (T1DM). It appears as an acute relapsing hepatitis with reversible transaminase elevations secondary to excessive hepatic glycogen accumulation. Patients are often asymptomatic but can present with abdominal pain, nausea and vomiting. Physical examination shows hepatomegaly without splenomegaly. GH is diagnosed by biopsy as it is clinically indistinguishable from non-alcoholic fatty liver disease (NAFLD), a more common cause of hepatic dysfunction in diabetics...
February 21, 2017: Journal of General Internal Medicine
https://www.readbyqxmd.com/read/28224174/spectroscopic-polarographic-and-microcalorimetric-studies-on-mitochondrial-dysfunction-induced-by-ethanol
#17
Long Ma, Jia-Xin Dong, Can Wu, Xue-Yi Li, Jing Chen, Hong Zhang, Yi Liu
Liver mitochondria are involved in several important life processes; mitochondrial dysfunction and disorders are implicated in several human diseases. Alcohol permeates all tissues of the body and exerts some intrinsic hepatotoxicity. In this work, our results demonstrated that ethanol caused a series of mitochondria permeability transition pore (MPTP) opening factors such as mitochondrial swelling, increased permeability of H(+) and K(+), collapsed membrane potential, and increased membrane fluidity. Furthermore, mitochondrial ultrastructure alternation observed clearly by transmission electron microscopy and the release of Cytochrome c could explain the MPTP opening from another aspect...
February 21, 2017: Journal of Membrane Biology
https://www.readbyqxmd.com/read/28223722/to-screen-or-not-to-screen-celiac-antibodies-in-liver-diseases
#18
REVIEW
Janaína Luz Narciso-Schiavon, Leonardo Lucca Schiavon
Celiac disease (CD) is a systemic immune-mediated disorder triggered by dietary gluten in genetically predisposed individuals. The typical symptoms are anemia, diarrhea, fatigue, weight loss, and abdominal pain. CD has been reported in patients with primary sclerosing cholangitis, primary biliary cholangitis, autoimmune hepatitis, aminotransferase elevations, nonalcoholic fatty liver disease, hepatitis B, hepatitis C, portal hypertension and liver cirrhosis. We evaluate recommendations for active screening for CD in patients with liver diseases, and the effect of a gluten-free diet in these different settings...
February 7, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28223719/hepatitis-c-virus-associated-pruritus-etiopathogenesis-and-therapeutic-strategies
#19
EDITORIAL
Youssef Alhmada, Denis Selimovic, Fadi Murad, Sarah-Lilly Hassan, Youssef Haikel, Mossaad Megahed, Matthias Hannig, Mohamed Hassan
In addition to its contributing role in the development of chronic liver diseases, chronic hepatitis C virus (HCV) infection is associated with extrahepatic manifestations, particularly, cutaneous-based disorders including those with pruritus as a symptom. Pruritus is frequently associated with the development of chronic liver diseases such as cholestasis and chronic viral infection, and the accumulation of bile acids in patients' sera and tissues as a consequence of liver damage is considered the main cause of pruritus...
February 7, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28223235/interleukin-32-inflammation-and-cancer
#20
REVIEW
Jin Tae Hong, Dong Ju Son, Chong Kil Lee, Do-Young Yoon, Dong Hun Lee, Mi Hee Park
Interleukin-32 (IL-32) is a novel cytokine involved in inflammation and cancer development. IL-32 gene consists of eight small exons, and IL-32 mRNA has nine alternative spliced isoforms, and was thought to be secreted because it contains an internal signal sequence and lacks a transmembrane region. IL-32 is initially expressed selectively in activated T cells by mitogen and activated NK cells and their expression is strongly augmented by microbes, mitogens, and other cytokines. The IL-32 is induced mainly by pathogens and pro-inflammatory cytokines, but IL-32 is more prominent in immune cells than in non-immune tissues...
February 14, 2017: Pharmacology & Therapeutics
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