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https://www.readbyqxmd.com/read/28428345/proliferation-of-primary-human-hepatocytes-and-prevention-of-hepatitis-b-virus-reinfection-efficiently-deplete-nuclear-cccdna-in-vivo
#1
Lena Allweiss, Tassilo Volz, Katja Giersch, Janine Kah, Giuseppina Raffa, Joerg Petersen, Ansgar W Lohse, Concetta Beninati, Teresa Pollicino, Stephan Urban, Marc Lütgehetmann, Maura Dandri
OBJECTIVE: The stability of the covalently closed circular DNA (cccDNA) in nuclei of non-dividing hepatocytes represents a key determinant of HBV persistence. Contrarily, studies with animal hepadnaviruses indicated that hepatocyte turnover can reduce cccDNA loads but knowledge on the proliferative capacity of HBV-infected primary human hepatocytes (PHHs) in vivo and the fate of cccDNA in dividing PHHs is still lacking. This study aimed to determine the impact of human hepatocyte division on cccDNA stability in vivo...
April 20, 2017: Gut
https://www.readbyqxmd.com/read/28428344/vascular-adhesion-protein-1-is-elevated-in-primary-sclerosing-cholangitis-is-predictive-of-clinical-outcome-and-facilitates-recruitment-of-gut-tropic-lymphocytes-to-liver-in-a-substrate-dependent-manner
#2
Palak J Trivedi, Joseph Tickle, Mette Nåmdal Vesterhus, Peter J Eddowes, Tony Bruns, Jani Vainio, Richard Parker, David Smith, Evaggelia Liaskou, Liv Wenche Thorbjørnsen, Gideon M Hirschfield, Kaisa Auvinen, Stefan G Hubscher, Marko Salmi, David H Adams, Chris J Weston
OBJECTIVE: Primary sclerosing cholangitis (PSC) is the classical hepatobiliary manifestation of IBD. This clinical association is linked pathologically to the recruitment of mucosal T cells to the liver, via vascular adhesion protein (VAP)-1-dependent enzyme activity. Our aim was to examine the expression, function and enzymatic activation of the ectoenzyme VAP-1 in patients with PSC. DESIGN: We examined VAP-1 expression in patients with PSC, correlated levels with clinical characteristics and determined the functional consequences of enzyme activation by specific enzyme substrates on hepatic endothelium...
April 20, 2017: Gut
https://www.readbyqxmd.com/read/28416515/multivariate-modelling-of-faecal-bacterial-profiles-of-patients-with-ibs-predicts-responsiveness-to-a-diet-low-in-fodmaps
#3
Sean M P Bennet, Lena Böhn, Stine Störsrud, Therese Liljebo, Lena Collin, Perjohan Lindfors, Hans Törnblom, Lena Öhman, Magnus Simrén
OBJECTIVE: The effects of dietary interventions on gut bacteria are ambiguous. Following a previous intervention study, we aimed to determine how differing diets impact gut bacteria and if bacterial profiles predict intervention response. DESIGN: Sixty-seven patients with IBS were randomised to traditional IBS (n=34) or low fermentable oligosaccharides, disaccharides, monosaccharides and polyols (FODMAPs) (n=33) diets for 4 weeks. Food intake was recorded for 4 days during screening and intervention...
April 17, 2017: Gut
https://www.readbyqxmd.com/read/28408385/senp1-activity-sustains-cancer-stem-cell-in-hypoxic-hcc
#4
Alice Conigliaro, Marco Tripodi, Maurizio Parola
No abstract text is available yet for this article.
April 13, 2017: Gut
https://www.readbyqxmd.com/read/28408384/protective-effects-of-helicobacter-pylori-for-ibd-are-related-to-the-caga-positive-strain
#5
LETTER
A R Lord, L A Simms, K Hanigan, R Sullivan, P Hobson, G L Radford-Smith
No abstract text is available yet for this article.
April 13, 2017: Gut
https://www.readbyqxmd.com/read/28408383/pioglitazone-for-the-treatment-of-nash-in-patients-with-prediabetes-or-type-2-diabetes-mellitus
#6
LETTER
Kenneth Cusi
No abstract text is available yet for this article.
April 13, 2017: Gut
https://www.readbyqxmd.com/read/28389531/chk1-targeted-therapy-to-deplete-dna-replication-stressed-p53-deficient-hyperdiploid-colorectal-cancer-stem-cells
#7
Gwenola Manic, Michele Signore, Antonella Sistigu, Giorgio Russo, Francesca Corradi, Silvia Siteni, Martina Musella, Sara Vitale, Maria Laura De Angelis, Matteo Pallocca, Carla Azzurra Amoreo, Francesca Sperati, Simone Di Franco, Sabina Barresi, Eleonora Policicchio, Gabriele De Luca, Francesca De Nicola, Marcella Mottolese, Ann Zeuner, Maurizio Fanciulli, Giorgio Stassi, Marcello Maugeri-Saccà, Marta Baiocchi, Marco Tartaglia, Ilio Vitale, Ruggero De Maria
OBJECTIVE: Cancer stem cells (CSCs) are responsible for tumour formation and spreading, and their targeting is required for tumour eradication. There are limited therapeutic options for advanced colorectal cancer (CRC), particularly for tumours carrying RAS-activating mutations. The aim of this study was to identify novel CSC-targeting strategies. DESIGN: To discover potential therapeutics to be clinically investigated as single agent, we performed a screening with a panel of FDA-approved or investigational drugs on primary CRC cells enriched for CSCs (CRC-SCs) isolated from 27 patients...
April 7, 2017: Gut
https://www.readbyqxmd.com/read/28389530/revised-british-society-of-gastroenterology-recommendation-on-the-diagnosis-and-management-of-barrett-s-oesophagus-with-low-grade-dysplasia
#8
LETTER
Massimiliano di Pietro, Rebecca C Fitzgerald
No abstract text is available yet for this article.
April 7, 2017: Gut
https://www.readbyqxmd.com/read/28381526/mirna-132-induces-hepatic-steatosis-and-hyperlipidaemia-by-synergistic-multitarget-suppression
#9
Geula Hanin, Nadav Yayon, Yonat Tzur, Rotem Haviv, Estelle R Bennett, Shiran Udi, Yoganathan R Krishnamoorthy, Eleni Kotsiliti, Rivka Zangen, Ben Efron, Joseph Tam, Orit Pappo, Eyal Shteyer, Eli Pikarsky, Mathias Heikenwalder, David S Greenberg, Hermona Soreq
OBJECTIVE: Both non-alcoholic fatty liver disease (NAFLD) and the multitarget complexity of microRNA (miR) suppression have recently raised much interest, but the in vivo impact and context-dependence of hepatic miR-target interactions are incompletely understood. Assessing the relative in vivo contributions of specific targets to miR-mediated phenotypes is pivotal for investigating metabolic processes. DESIGN: We quantified fatty liver parameters and the levels of miR-132 and its targets in novel transgenic mice overexpressing miR-132, in liver tissues from patients with NAFLD, and in diverse mouse models of hepatic steatosis...
April 5, 2017: Gut
https://www.readbyqxmd.com/read/28381525/faecal-microbiota-transplantation-in-clinical-practice
#10
LETTER
Giovanni Cammarota, Gianluca Ianiro, Antonio Gasbarrini
No abstract text is available yet for this article.
April 5, 2017: Gut
https://www.readbyqxmd.com/read/28381524/inulin-prebiotic-is-it-all-about-bifidobacteria
#11
Sandrine Paule Claus
No abstract text is available yet for this article.
April 5, 2017: Gut
https://www.readbyqxmd.com/read/28381523/human-milk-oligosaccharide-composition-predicts-risk-of-necrotising-enterocolitis-in-preterm-infants
#12
Chloe A Autran, Benjamin P Kellman, Jae H Kim, Elizabeth Asztalos, Arlin B Blood, Erin C Hamilton Spence, Aloka L Patel, Jiayi Hou, Nathan E Lewis, Lars Bode
OBJECTIVE: Necrotising enterocolitis (NEC) is one of the most common and often fatal intestinal disorders in preterm infants. Markers to identify at-risk infants as well as therapies to prevent and treat NEC are limited and urgently needed. NEC incidence is significantly lower in breast-fed compared with formula-fed infants. Infant formula lacks human milk oligosaccharides (HMO), such as disialyllacto-N-tetraose (DSLNT), which prevents NEC in neonatal rats. However, it is unknown if DSLNT also protects human preterm infants...
April 5, 2017: Gut
https://www.readbyqxmd.com/read/28381522/adalimumab-in-crohn-s-strictures-the-creole-study
#13
LETTER
Ajinkya Ashok Sonambekar, Devendra C Desai, Anand Joshi, Pavan Dhoble
No abstract text is available yet for this article.
April 5, 2017: Gut
https://www.readbyqxmd.com/read/28377388/targeting-the-gut-microbiota-with-inulin-type-fructans-preclinical-demonstration-of-a-novel-approach-in-the-management-of-endothelial-dysfunction
#14
Emilie Catry, Laure B Bindels, Anne Tailleux, Sophie Lestavel, Audrey M Neyrinck, Jean-François Goossens, Irina Lobysheva, Hubert Plovier, Ahmed Essaghir, Jean-Baptiste Demoulin, Caroline Bouzin, Barbara D Pachikian, Patrice D Cani, Bart Staels, Chantal Dessy, Nathalie M Delzenne
OBJECTIVE: To investigate the beneficial role of prebiotics on endothelial dysfunction, an early key marker of cardiovascular diseases, in an original mouse model linking steatosis and endothelial dysfunction. DESIGN: We examined the contribution of the gut microbiota to vascular dysfunction observed in apolipoprotein E knockout (Apoe(-/-)) mice fed an n-3 polyunsaturated fatty acid (PUFA)-depleted diet for 12 weeks with or without inulin-type fructans (ITFs) supplementation for the last 15 days...
April 4, 2017: Gut
https://www.readbyqxmd.com/read/28377387/long-term-use-of-antibiotics-and-risk-of-colorectal-adenoma
#15
Yin Cao, Kana Wu, Raaj Mehta, David A Drew, Mingyang Song, Paul Lochhead, Long H Nguyen, Jacques Izard, Charles S Fuchs, Wendy S Garrett, Curtis Huttenhower, Shuji Ogino, Edward L Giovannucci, Andrew T Chan
OBJECTIVE: Recent evidence suggests that antibiotic use, which alters the gut microbiome, is associated with an increased risk of colorectal cancer. However, the association between antibiotic use and risk of colorectal adenoma, the precursor for the majority of colorectal cancers, has not been investigated. DESIGN: We prospectively evaluated the association between antibiotic use at age 20-39 and 40-59 (assessed in 2004) and recent antibiotic use (assessed in 2008) with risk of subsequent colorectal adenoma among 16 642 women aged ≥60 enrolled in the Nurses' Health Study who underwent at least one colonoscopy through 2010...
April 4, 2017: Gut
https://www.readbyqxmd.com/read/28360099/humanisation-of-a-claudin-1-specific-monoclonal-antibody-for-clinical-prevention-and-cure-of-hcv-infection-without-escape
#16
Che C Colpitts, Rajiv G Tawar, Laurent Mailly, Christine Thumann, Laura Heydmann, Sarah C Durand, Fei Xiao, Eric Robinet, Patrick Pessaux, Mirjam B Zeisel, Thomas F Baumert
OBJECTIVE: HCV infection is a leading cause of chronic liver disease and a major indication for liver transplantation. Although direct-acting antivirals (DAAs) have much improved the treatment of chronic HCV infection, alternative strategies are needed for patients with treatment failure. As an essential HCV entry factor, the tight junction protein claudin-1 (CLDN1) is a promising antiviral target. However, genotype-dependent escape via CLDN6 and CLDN9 has been described in some cell lines as a possible limitation facing CLDN1-targeted therapies...
March 30, 2017: Gut
https://www.readbyqxmd.com/read/28360098/fatal-outcome-due-to-co2-emboli-during-direct-cholangioscopy
#17
Alexander Hann, Eugen Zizer, Klaus Egger, Hans-Dieter Allescher, Alexander Meining
No abstract text is available yet for this article.
March 30, 2017: Gut
https://www.readbyqxmd.com/read/28360097/chk2-overexpression-and-mislocalisation-within-mitotic-structures-enhances-chromosomal-instability-and-hepatocellular-carcinoma-progression
#18
Vinicio Carloni, Matteo Lulli, Stefania Madiai, Tommaso Mello, Andrew Hall, Tu Vinh Luong, Massimo Pinzani, Krista Rombouts, Andrea Galli
OBJECTIVE: Chromosomal instability (CIN) is the most common form of genomic instability, which promotes hepatocellular carcinoma (HCC) progression by enhancing tumour heterogeneity, drug resistance and immunity escape. CIN per se is an important factor of DNA damage, sustaining structural chromosome abnormalities but the underlying mechanisms are unknown. DESIGN: DNA damage response protein checkpoint kinase 2 (Chk2) expression was evaluated in an animal model of diethylnitrosamine-induced HCC characterised by DNA damage and elevated mitotic errors...
March 30, 2017: Gut
https://www.readbyqxmd.com/read/28360096/the-microbiome-of-professional-athletes-differs-from-that-of-more-sedentary-subjects-in-composition-and-particularly-at-the-functional-metabolic-level
#19
Wiley Barton, Nicholas C Penney, Owen Cronin, Isabel Garcia-Perez, Michael G Molloy, Elaine Holmes, Fergus Shanahan, Paul D Cotter, Orla O'Sullivan
OBJECTIVE: It is evident that the gut microbiota and factors that influence its composition and activity effect human metabolic, immunological and developmental processes. We previously reported that extreme physical activity with associated dietary adaptations, such as that pursued by professional athletes, is associated with changes in faecal microbial diversity and composition relative to that of individuals with a more sedentary lifestyle. Here we address the impact of these factors on the functionality/metabolic activity of the microbiota which reveals even greater separation between exercise and a more sedentary state...
March 30, 2017: Gut
https://www.readbyqxmd.com/read/28360095/hnrnpll-a-newly-identified-colorectal-cancer-metastasis-suppressor-modulates-alternative-splicing-of-cd44-during-epithelial-mesenchymal-transition
#20
Keiichiro Sakuma, Eiichi Sasaki, Kenya Kimura, Koji Komori, Yasuhiro Shimizu, Yasushi Yatabe, Masahiro Aoki
OBJECTIVE: Despite the recent advances in treatment of colon cancer, the prognosis is unfavourable for patients with distant metastases. The aim of this study was to identify targets for prevention and/or therapy of colon cancer metastasis. DESIGN: CMT93 cells, a murine rectal cancer cell line with poor metastasising activity, were transduced with lentiviral shRNA library and transplanted into the rectum of syngeneic C57BL/6 mice. Genomic DNA was collected from metastatic lesions, and the integrated shRNA were retrieved by PCR for sequencing, followed by identification of the candidate genes targeted by the shRNA...
March 30, 2017: Gut
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