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https://www.readbyqxmd.com/read/28550391/gut-liver-axis-cirrhosis-and-portal-hypertension-the-chicken-and-the-egg
#1
Juan P Arab, Rosa M Martin-Mateos, Vijay H Shah
The term gut-liver axis is used to highlight the close anatomical and functional relationship between the intestine and the liver. The intestine has a highly specialized epithelial membrane which regulates transport across the mucosa. Due to dysbiosis, impairment of the intestinal barrier and altered immunity status, bacterial products can reach the liver through the portal vein, where they are recognized by specific receptors, activate the immune system and lead to a proinflammatory response. Gut microbiota and bacterial translocation play an important role in the pathogenesis of chronic liver diseases, including alcoholic and non-alcoholic fatty liver disease, cirrhosis, and its complications, such as portal hypertension, spontaneous bacterial peritonitis and hepatic encephalopaty...
May 26, 2017: Hepatology International
https://www.readbyqxmd.com/read/28550049/recovery-of-ethanol-induced-akkermansia-muciniphila-depletion-ameliorates-alcoholic-liver-disease
#2
Christoph Grander, Timon E Adolph, Verena Wieser, Patrick Lowe, Laura Wrzosek, Benedek Gyongyosi, Doyle V Ward, Felix Grabherr, Romana R Gerner, Alexandra Pfister, Barbara Enrich, Dragos Ciocan, Sophie Macheiner, Lisa Mayr, Matthias Drach, Patrizia Moser, Alexander R Moschen, Gabriel Perlemuter, Gyongyi Szabo, Anne Marie Cassard, Herbert Tilg
OBJECTIVE: Alcoholic liver disease (ALD) is a global health problem with limited therapeutic options. Intestinal barrier integrity and the microbiota modulate susceptibility to ALD. Akkermansia muciniphila, a Gram-negative intestinal commensal, promotes barrier function partly by enhancing mucus production. The aim of this study was to investigate microbial alterations in ALD and to define the impact of A. muciniphila administration on the course of ALD. DESIGN: The intestinal microbiota was analysed in an unbiased approach by 16S ribosomal DNA (rDNA) sequencing in a Lieber-DeCarli ALD mouse model, and faecal A...
May 26, 2017: Gut
https://www.readbyqxmd.com/read/28531911/risk-factors-for-gastric-tumorigenesis-in-underlying-gastric-mucosal-atrophy
#3
Ji Hyun Song, Sang Gyun Kim, Eun Hyo Jin, Joo Hyun Lim, Sun Young Yang
Background/Aims: Atrophic gastritis is considered a premalignant lesion. We aimed to evaluate the risk factors for gastric tumorigenesis in underlying mucosal atrophy. Methods: A total of 10,185 subjects who underwent upper gastrointestinal endoscopy between 2003 and 2004 were enrolled in this retrospective cohort study. Follow-up endoscopy was performed between 2005 and 2014. Atrophic gastritis and intestinal metaplasia were assessed by endoscopy using the Kimura-Takemoto classification...
May 23, 2017: Gut and Liver
https://www.readbyqxmd.com/read/28530644/intestinal-fungi-contribute-to-development-of-alcoholic-liver-disease
#4
An-Ming Yang, Tatsuo Inamine, Katrin Hochrath, Peng Chen, Lirui Wang, Cristina Llorente, Sena Bluemel, Phillipp Hartmann, Jun Xu, Yukinori Koyama, Tatiana Kisseleva, Manolito G Torralba, Kelvin Moncera, Karen Beeri, Chien-Sheng Chen, Kim Freese, Claus Hellerbrand, Serene Ml Lee, Hal M Hoffman, Wajahat Z Mehal, Guadalupe Garcia-Tsao, Ece A Mutlu, Ali Keshavarzian, Gordon D Brown, Samuel B Ho, Ramon Bataller, Peter Stärkel, Derrick E Fouts, Bernd Schnabl
Chronic liver disease with cirrhosis is the 12th leading cause of death in the United States, and alcoholic liver disease accounts for approximately half of all cirrhosis deaths. Chronic alcohol consumption is associated with intestinal bacterial dysbiosis, yet we understand little about the contribution of intestinal fungi, or mycobiota, to alcoholic liver disease. Here we have demonstrated that chronic alcohol administration increases mycobiota populations and translocation of fungal β-glucan into systemic circulation in mice...
May 22, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28521872/non-alcoholic-fatty-liver-disease-an-update-with-special-focus-on-the-role-of-gut-microbiota
#5
REVIEW
Michael Doulberis, Georgios Kotronis, Dimitra Gialamprinou, Jannis Kountouras, Panagiotis Katsinelos
Non-alcoholic fatty liver disease (NAFLD) is a significant global health burden in children, adolescents and adults with substantial rise in prevalence over the last decades. Accumulating data from manifold studies support the idea of NAFLD as a hepatic manifestation of metabolic syndrome, being rather a systemic metabolic disease than a liver confined pathology. Emerging data support that the gut microbiome represents a significant environmental factor contributing to NAFLD development and progression. Apart from other regimens, probiotics may have a positive role in the management of NAFLD through a plethora of possible mechanisms...
June 2017: Metabolism: Clinical and Experimental
https://www.readbyqxmd.com/read/28498296/interleukin-22-prevents-microbial-dysbiosis-and-promotes-intestinal-barrier-regeneration-following-acute-injury
#6
Adam M Hammer, Niya L Morris, Abigail R Cannon, Omair M Khan, Robin C Gagnon, Nellie V Movtchan, Ilse van Langeveld, Xiaoling Li, Bin Gao, Mashkoor A Choudhry
Intestine barrier disruption and bacterial translocation can contribute to sepsis and multiple organ failure- leading causes of mortality in burn-injured patients. Additionally, findings suggest ethanol (alcohol) intoxication at the time of injury worsens symptoms associated with burn injury. We have previously shown that interleukin-22 (IL-22) protects from intestinal leakiness and prevents overgrowth of Gram-negative bacteria following ethanol and burn injury, but how IL-22 mediates these effects has not been established...
May 11, 2017: Shock
https://www.readbyqxmd.com/read/28497760/the-intestinal-microbiome-and-paediatric-liver-disease
#7
REVIEW
Daniel H Leung, Dean Yimlamai
The intestinal microbiome has been the intense focus of recent study, but how the microbiota affects connected organs, such as the liver, has not been fully elucidated. The microbiome regulates intestinal permeability and helps to metabolise the human diet into small molecules, thus directly affecting liver health. Several studies have linked intestinal dysbiosis to the severity and progression of liver diseases, such as non-alcoholic fatty liver disease, non-alcoholic steatohepatitis, primary sclerosing cholangitis, total parenteral nutrition-associated liver disease, and cystic fibrosis-associated liver disease...
June 2017: Lancet. Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/28492501/urinary-metabolomics-in-pediatric-obesity-and-nafld-identifies-metabolic-pathways-metabolites-related-to-dietary-habits-and-gut-liver-axis-perturbations
#8
Jacopo Troisi, Luca Pierri, Annamaria Landolfi, Francesca Marciano, Antonella Bisogno, Federica Belmonte, Carmen Palladino, Salvatore Guercio Nuzio, Pietro Campiglia, Pietro Vajro
To get insight into still elusive pathomechanisms of pediatric obesity and non-alcoholic fatty liver disease (NAFLD) we explored the interplay among GC-MS studied urinary metabolomic signature, gut liver axis (GLA) abnormalities, and food preferences (Kid-Med). Intestinal permeability (IP), small intestinal bacterial overgrowth (SIBO), and homeostatic model assessment-insulin resistance were investigated in forty children (mean age 9.8 years) categorized as normal weight (NW) or obese (body mass index <85th or >95th percentile, respectively) ± ultrasonographic bright liver and hypertransaminasemia (NAFLD)...
May 11, 2017: Nutrients
https://www.readbyqxmd.com/read/28490707/-effect-of-nf-%C3%AE%C2%BAb-on-the-pathogenic-course-of-non-alcoholic-fatty-liver-disease
#9
Li Wu, Yutao Xie
With the economic growth and better standards of living, the prevalence of non-alcoholic fatty liver disease (NAFLD) is expected to increase dramatically worldwide. NAFLD is a common chronic inflammation disease. NF-κB is a transcription factor that plays crucial roles in inflammation, immunity, cell proliferation and apoptosis. It can facilitate the occurrence and development of NAFLD, and the underlying mechanisms are related to insulin resistance, oxidative stress, alteration of intestinal flora, activation of renin angiotensin system, etc...
April 28, 2017: Zhong Nan da Xue Xue Bao. Yi Xue Ban, Journal of Central South University. Medical Sciences
https://www.readbyqxmd.com/read/28484247/total-fecal-microbiota-transplantation-alleviates-high-fat-diet-induced-steatohepatitis-in-mice-via-beneficial-regulation-of-gut-microbiota
#10
Da Zhou, Qin Pan, Feng Shen, Hai-Xia Cao, Wen-Jin Ding, Yuan-Wen Chen, Jian-Gao Fan
Non-alcoholic steatohepatitis (NASH) is an epidemic metabolic disease with limited therapeutic strategies. Cumulative data support the pivotal role of gut microbiota in NASH. Here, we investigated the hypothesis regarding whether fecal microbiota transplantation (FMT) is effective in attenuating high-fat diet (HFD)-induced steatohepatitis in mice. Mice were randomized into control, HFD and HFD + FMT groups. After an 8-week HFD, FMT treatment was initiated and carried out for 8 weeks. The gut microbiota structure, butyrate concentrations of the cecal content, liver pathology and intrahepatic lipid and cytokines were examined...
May 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28482064/gut-liver-axis-and-sterile-signals-in-the-development-of-alcoholic-liver-disease
#11
Gyongyi Szabo, Jan Petrasek
Background: Innate immunity plays a critical role in the development of alcohol-induced liver inflammation. Understanding the inter-relationship of signals from within and outside of the liver that trigger liver inflammation is pivotal for development of novel therapeutic targets of alcoholic liver disease (ALD). Aim: The aim of this paper is to review recent advances in the field of alcohol-induced liver inflammation. Methods: A detailed literature review was performed using the PubMed database published between January 1980 and December 2016...
May 8, 2017: Alcohol and Alcoholism: International Journal of the Medical Council on Alcoholism
https://www.readbyqxmd.com/read/28476961/poly-vinyl-alcohol-poly-acrylamide-co-diallyldimethyl-ammonium-chloride-semi-ipn-hydrogels-for-ciprofloxacin-hydrochloride-drug-delivery
#12
Siva Sankar Sana, Vijaya Kumar Naidu Boya
Herein, the authors developed a new and potential semi-interpenetrating polymer network (semi-IPN) hydrogels of poly vinyl alcohol (PVA), acryl amide and diallyldimethyl ammonium chloride employing chemical cross-linker N, N'-methylene bisacrylamide (NNMBA) and ammonium persulphate as an initiator by radical polymerisation. To analyse the copolymer formation between two monomers and IPN cross-linking reaction, the resulting hydrogel was characterised by Fourier transform infrared spectroscopy and the surface morphology was analysed using scanning electron microscopy...
February 2017: IET Nanobiotechnology
https://www.readbyqxmd.com/read/28464257/significant-positive-association-of-endotoxemia-with-histological-severity-in-237-patients-with-non-alcoholic-fatty-liver-disease
#13
J Pang, W Xu, X Zhang, G L-H Wong, A W-H Chan, H-Y Chan, C-H Tse, S S-T Shu, P C-L Choi, H L-Y Chan, J Yu, V W-S Wong
BACKGROUND: Patients with nonalcoholic steatohepatitis (NASH) have gut dysbiosis and intestinal bacterial overgrowth. AIM: To test the hypothesis that endotoxemia is associated with the histological severity of nonalcoholic fatty liver disease (NAFLD) and determine factors associated with endotoxemia. METHODS: The endotoxemia markers lipopolysaccharide-binding protein (LBP) and endotoxin levels were measured in 237 NAFLD patients 1 day before liver biopsy...
May 2, 2017: Alimentary Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/28456683/patchouli-alcohol-ameliorates-dextran-sodium-sulfate-induced-experimental-colitis-and-suppresses-tryptophan-catabolism
#14
Chang Qu, Zhong-Wen Yuan, Xiu-Ting Yu, Yan-Feng Huang, Guang-Hua Yang, Jian-Nan Chen, Xiao-Ping Lai, Zi-Ren Su, Hui-Fang Zeng, Ying Xie, Xiao-Jun Zhang
Despite the increased morbidity of ulcerative colitis (UC) in recent years, available treatments remain unsatisfactory. Pogostemon cablin has been widely applied to treat a variety of gastrointestinal disorders in clinic for centuries, in which patchouli alcohol (PA, C15H26O) has been identified as the major active component. This study attempted to determine the bioactivity of PA on dextran sulfate sodium (DSS)-induced mice colitis and clarify the mechanism of action. Acute colitis was induced in mice by 3% DSS for 7 days...
April 27, 2017: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/28447197/role-of-zinc-in-the-development-progression-of-alcoholic-liver-disease
#15
REVIEW
Craig McClain, Vatsalya Vatsalya, Matthew Cave
Many variables, aside from the amount and duration of alcohol consumption, play a role in the development and progression of alcoholic liver disease (ALD). One critical factor that can be modified is diet/nutrition. We have made major recent advances in our understanding of the interactions of nutrition and ALD. In this article, we review advances made in zinc metabolism/therapy for ALD. There is major zinc dyshomeostasis with ALD which is mediated, in part, by poor intake and absorption, increased excretion, and altered zinc transporters, especially ZIP14...
April 26, 2017: Current Treatment Options in Gastroenterology
https://www.readbyqxmd.com/read/28437842/autoimmune-like-chronic-hepatitis-induced-by-olmesartan
#16
Sandrine Barge, Marianne Ziol, Jean-Charles Nault
Drug liver-induced injury (DILI) due to minocyclin, alpha methyldopa or nitrofurantoin may be responsible for chronic liver damage that mimic the biological and/or histological features of chronic autoimmune hepatitis and, in rare cases, progresses to cirrhosis(1). Olmesartan medoxomil is an antihypertensive drug that acts by blocking the angiotensin II receptor and is metabolized into its pharmacologically active form, olmesartan, in the intestine and in the liver before being released into the systemic circulation...
April 24, 2017: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/28434046/oral-arginine-supplementation-protects-female-mice-from-the-onset-of-non-alcoholic-steatohepatitis
#17
Cathrin Sellmann, Christian Degen, Cheng Jun Jin, Anika Nier, Anna Janina Engstler, Dana Hasan Alkhatib, Jean-Pascal De Bandt, Ina Bergheim
Dietary arginine (Arg) supplementation has been proposed to have positive effects on the development of liver diseases. In the present study, we investigate if an oral Arg supplementation in diet protects mice fed a fructose, fat and cholesterol enriched Western-style diet (WSD) from the development of non-alcoholic steatohepatitis (NASH). Female C57BL/6J mice were fed a liquid control diet or a liquid WSD ± Arg (2.49 g/kg body weight/day) for 6 weeks. Indices of liver injury, glucose metabolism and intestinal permeability were determined...
April 22, 2017: Amino Acids
https://www.readbyqxmd.com/read/28432604/phosphate-imbalance-in-patients-with-heart-failure
#18
REVIEW
E C Christopoulou, T D Filippatos, E Megapanou, M S Elisaf, G Liamis
Patients with heart failure often exhibit electrolyte abnormalities, such as hyponatremia or hypokalemia/hyperkalemia. Although not as common as the other electrolyte disturbances observed in patients with heart failure, phosphate imbalance is also of high importance in this population. The aim of this review is to present the mechanisms of low or high phosphate serum levels in patients with heart failure and its role in the pathogenesis and progression of heart dysfunction. Hypophosphatemia in patients with heart failure may be the result of co-existing electrolyte and acid-base abnormalities, pharmacological treatments, decreased intestinal absorption or secondary to sympathetic nervous system activation and co-morbidities, such as diabetes mellitus or heavy alcohol consumption...
May 2017: Heart Failure Reviews
https://www.readbyqxmd.com/read/28426878/microbiota-nash-hcc-and-the-potential-role-of-probiotics
#19
Giovanni Brandi, Stefania De Lorenzo, Marco Candela, Maria Abbondanza Pantaleo, Stefano Bellentani, Francesco Tovoli, Gioconda Saccoccio, Guido Biasco
Hepatocellular carcinoma (HCC) accounts for the majority of primary liver cancers. Clearly identifiable risk factors are lacking in up to 30% of HCC patients and most of these cases are attributed to non-alcoholic fatty liver disease (NAFLD) and non-alcoholic steatohepatitis (NASH). Beyond the known risk factors for NAFLD, the intestinal microbiota, in particular dysbiosis (defined as any change in the composition of the microbiota commonly found in healthy conditions) is emerging as a new factor promoting the development of chronic liver diseases and HCC...
March 1, 2017: Carcinogenesis
https://www.readbyqxmd.com/read/28424943/intestinal-alkaline-phosphatase-attenuates-alcohol-induced-hepatosteatosis-in-mice
#20
Sulaiman R Hamarneh, Byeong-Moo Kim, Kanakaraju Kaliannan, Sara A Morrison, Tyler J Tantillo, Qingsong Tao, Mussa M Rafat Mohamed, Juan M Ramirez, Aaron Karas, Wei Liu, Dong Hu, Abeba Teshager, Sarah Shireen Gul, Konstantinos P Economopoulos, Atul K Bhan, Madhu S Malo, Michael Y Choi, Richard A Hodin
BACKGROUND AND AIMS: Bacterially derived factors from the gut play a major role in the activation of inflammatory pathways in the liver and in the pathogenesis of alcoholic liver disease. The intestinal brush-border enzyme intestinal alkaline phosphatase (IAP) detoxifies a variety of bacterial pro-inflammatory factors and also functions to preserve gut barrier function. The aim of this study was to investigate whether oral IAP supplementation could protect against alcohol-induced liver disease...
April 19, 2017: Digestive Diseases and Sciences
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