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Clinical and Translational Gastroenterology

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https://www.readbyqxmd.com/read/29345635/genetic-risk-dysbiosis-and-treatment-stratification-using-host-genome-and-gut-microbiome-in-inflammatory-bowel-disease
#1
Ahmed Moustafa, Weizhong Li, Ericka L Anderson, Emily H M Wong, Parambir S Dulai, William J Sandborn, William Biggs, Shibu Yooseph, Marcus B Jones, J Craig Venter, Karen E Nelson, John T Chang, Amalio Telenti, Brigid S Boland
OBJECTIVES: Inflammatory bowel diseases (IBD), comprised of Crohn's disease (CD) and ulcerative colitis (UC), are characterized by a complex pathophysiology that is thought to result from an aberrant immune response to a dysbiotic luminal microbiota in genetically susceptible individuals. New technologies support the joint assessment of host-microbiome interaction. METHODS: Using whole genome sequencing and shotgun metagenomics, we studied the clinical features, host genome, and stool microbial metagenome of 85 IBD patients, and compared the results to 146 control individuals...
January 18, 2018: Clinical and Translational Gastroenterology
https://www.readbyqxmd.com/read/29240732/endoscopic-resection-for-early-stage-esophageal-cancer-are-we-there-for-squamous-as-well
#2
EDITORIAL
Rushikesh Shah, Field F Willingham
Superficial esophageal squamous cell cancer (SESCC) is often managed with esophagectomy with or without chemoradiotherapy. Esophagectomy has a significant complication rate and is not an option for many patients. In the current issue, a retrospective single center study evaluated 66 patients with SESCC. With endoscopic resection followed by adjuvant chemoradiotherapy, the reported 1-, 3- and 5-year overall survival rates were 98%, 87% and 75% respectively, comparable to survival rates after esophagectomy or definitive chemoradiotherapy...
December 14, 2017: Clinical and Translational Gastroenterology
https://www.readbyqxmd.com/read/29215631/which-patients-with-mild-acute-pancreatitis-require-prolonged-hospitalization
#3
Harkirat Singh, Amir Gougol, Rawad Mounzer, Dhiraj Yadav, Efstratios Koutroumpakis, Adam Slivka, David C Whitcomb, Georgios I Papachristou
OBJECTIVES: In our experience, a subset of mild acute pancreatitis (AP) patients, as defined by the Revised Atlanta Classification, has longer than expected hospitalization. Our aims are to report the prevalence of patients with mild AP who have a prolonged length of stay (LOS), evaluate the etiology, thoroughly phenotype, and finally compare this subset to those with expected LOS. METHODS: Patients admitted with AP from 2003 to 2015 were prospectively enrolled into this cohort study...
December 7, 2017: Clinical and Translational Gastroenterology
https://www.readbyqxmd.com/read/29189768/inflammatory-bowel-disease-adversely-impacts-colorectal-cancer-surgery-short-term-outcomes-and-health-care-resource-utilization
#4
Mitchell Ramsey, Somashekar G Krishna, Peter P Stanich, Syed Husain, Edward J Levine, Darwin Conwell, Alice Hinton, Cheng Zhang
OBJECTIVES: Inflammatory bowel disease (IBD) is associated with an increased risk of colorectal cancer (CRC) compared to patients without IBD. There is a lack of population-based data evaluating the in-patient surgical outcomes of CRC in IBD patients. We sought to compare the hospital outcomes of CRC surgery between patients with and without IBD. METHODS: We used the National Inpatient Sample (2008-2012) and Nationwide Readmissions Database (NRD, 2013) and selected all adult patients (age ≥18 years) with ulcerative colitis (UC) or Crohn's disease (CD) who underwent CRC surgery...
November 30, 2017: Clinical and Translational Gastroenterology
https://www.readbyqxmd.com/read/29189767/blood-based-protein-signatures-for-early-detection-of-colorectal-cancer-a-systematic-review
#5
Megha Bhardwaj, Anton Gies, Simone Werner, Petra Schrotz-King, Hermann Brenner
OBJECTIVES: Blood-based proteins might be an attractive option for early detection of colorectal cancer (CRC), but individually they are unlikely to achieve the diagnostic performance required for population based screening. We aimed at summarizing current evidence of diagnostic performance of signatures based on multiple proteins for early detection of CRC. METHODS: A systematic literature review adhering to the PRISMA (preferred reporting items for systematic reviews and meta-analysis) guidelines was performed...
November 30, 2017: Clinical and Translational Gastroenterology
https://www.readbyqxmd.com/read/29095427/centrally-determined-standardization-of-flow-cytometry-methods-reduces-interlaboratory-variation-in-a-prospective-multicenter-study
#6
Liset Westera, Tanja van Viegen, Jenny Jeyarajah, Azar Azad, Janine Bilsborough, Gijs R van den Brink, Jonathan Cremer, Silvio Danese, Geert D'Haens, Lars Eckmann, William Faubion, Melissa Filice, Hannelie Korf, Dermot McGovern, Julian Panes, Azucena Salas, William J Sandborn, Mark S Silverberg, Michelle I Smith, Severine Vermeire, Stefania Vetrano, Lisa M Shackelton, Larry Stitt, Vipul Jairath, Barrett G Levesque, David M Spencer, Brian G Feagan, Niels Vande Casteele
OBJECTIVES: Flow cytometry (FC) aids in characterization of cellular and molecular factors involved in pathologic immune responses. Although FC has potential to facilitate early drug development in inflammatory bowel disease, interlaboratory variability limits its use in multicenter trials. Standardization of methods may address this limitation. We compared variability in FC-aided quantitation of T-cell responses across international laboratories using three analytical strategies. METHODS: Peripheral blood mononuclear cells (PBMCs) were isolated from three healthy donors, stimulated with phorbol 12-myristate 13-acetate and ionomycin at a central laboratory, fixed, frozen, and shipped to seven international laboratories...
November 2, 2017: Clinical and Translational Gastroenterology
https://www.readbyqxmd.com/read/29072674/comparison-of-impedance-and-pepsin-detection-in-the-laryngeal-mucosa-to-determine-impedance-values-that-indicate-pathological-laryngopharyngeal-reflux
#7
Martin Formánek, Debora Jančatová, Pavel Komínek, Radoslava Tomanová, Karol Zeleník
OBJECTIVE: Recently, a 24-h impedance was used to detect laryngopharyngeal reflux (LPR). However, not every case of LPR is pathological. Thus, pathological pharyngeal impedance values need to be clearly established to diagnose pathological LPR. The aim of our study was to establish pathological 24-h pharyngoesophageal impedance/pH values for the diagnosis of LPR. METHODS: The study was conducted in a tertiary care setting. A total of 30 patients who were referred to microlaryngoscopy for a laryngeal pathology that might be caused by LPR were included in this prospective study...
October 26, 2017: Clinical and Translational Gastroenterology
https://www.readbyqxmd.com/read/29072673/seven-year-treatment-outcome-of-entecavir-in-a-real-world-cohort-effects-on-clinical-parameters-hbsag-and-hbcrag-levels
#8
Yuk-Fai Lam, Wai-Kay Seto, Danny Wong, Ka-Shing Cheung, James Fung, Lung-Yi Mak, John Yuen, Chun-Kong Chong, Ching-Lung Lai, Man-Fung Yuen
OBJECTIVES: We aimed to determine the levels of alanine aminotransferase (ALT), hepatitis B virus DNA (HBV DNA), HBsAg, and a novel viral marker (hepatitis B core-related antigen (HBcrAg)); hepatitis B e antigen (HBeAg) seroconversion and drug resistance rates after 7 years of entecavir treatment in chronic hepatitis B (CHB) patients. METHODS: Two hundred and twenty-two Chinese CHB patients on continuous entecavir treatment were recruited. Serologic, virologic, biochemical outcomes, and the occurrence of entecavir signature mutations were determined...
October 26, 2017: Clinical and Translational Gastroenterology
https://www.readbyqxmd.com/read/29048416/increased-frequency-of-kras-mutations-in-african-americans-compared-with-caucasians-in-sporadic-colorectal-cancer
#9
Jonas J Staudacher, Cemal Yazici, Vadim Bul, Joseph Zeidan, Ahmer Khalid, Yinglin Xia, Nancy Krett, Barbara Jung
OBJECTIVES: The basis for over-representation of colorectal cancer (CRC) in African-American (AA) populations compared with Caucasians are multifactorial and complex. Understanding the mechanisms for this racial disparity is critical for delivery of better care. Several studies have investigated sporadic CRC for differences in somatic mutations between AAs and Caucasians, but owing to small study sizes and conflicting results to date, no definitive conclusions have been reached. METHODS: Here, we present the first systematic literature review and meta-analysis investigating the mutational differences in sporadic CRC between AAs and Caucasians focused on frequent driver mutations (APC,TP53, KRAS,PI3CA, FBXW7,SMAD4, and BRAF)...
October 19, 2017: Clinical and Translational Gastroenterology
https://www.readbyqxmd.com/read/29022926/erratum-transmembrane-tnf-%C3%AE-density-but-not-soluble-tnf-%C3%AE-level-is-associated-with-primary-response-to-infliximab-in-inflammatory-bowel-disease
#10
Azade Amini Kadijani, Hamid Asadzadeh Aghdaei, Dario Sorrentino, Alireza Mirzaei, Shabnam Shahrokh, Hedieh Balaii, Vu Q Nguyen, Jessica L Mays, Mohammad Reza Zali
This corrects the article DOI: 10.1038/ctg.2017.44.
October 12, 2017: Clinical and Translational Gastroenterology
https://www.readbyqxmd.com/read/28981082/a-new-preoperative-prognostic-system-combining-crp-and-ca199-for-patients-with-intrahepatic-cholangiocarcinoma
#11
Bo-Hao Zheng, Liu-Xiao Yang, Qi-Man Sun, Hong-Kai Fan, Men Duan, Jie-Yi Shi, Xiao-Ying Wang, Jian Zhou, Jia Fan, Zheng-Yao Ma, Qiang Gao
OBJECTIVES: In this study, we aimed at investigating the preoperatively available prognostic factors for intrahepatic cholangiocarcinoma (ICC) patients and proposing a new preoperative prognostic scoring system for ICC. METHODS: A total of 246 consecutive ICC patients who underwent curative hepatectomy were enrolled retrospectively and were randomly divided into training (n=164) and validation cohorts (n=82) at a ratio of 2:1. The prognostic factors were investigated in both cohorts using multivariate Cox's proportional hazards regression model...
October 5, 2017: Clinical and Translational Gastroenterology
https://www.readbyqxmd.com/read/28981081/influence-of-gaba-b-agonist-baclofen-on-capsaicin-induced-excitation-of-secondary-peristalsis-in-humans
#12
Wei-Yi Lei, Jui-Sheng Hung, Tso-Tsai Liu, Chih-Hsun Yi, Chien-Lin Chen
OBJECTIVES: Esophageal instillation of capsaicin enhances secondary peristalsis, but the γ-aminobutyric acid receptor type B (GABA-B) agonist baclofen inhibits secondary peristalsis. This study aimed to investigate whether baclofen could influence heartburn perception and secondary peristalsis subsequent to capsaicin infusion in healthy adults. METHODS: Secondary peristalsis was performed by slow and rapid mid-esophagus air injections in 15 healthy subjects. Two different sessions including esophageal infusion of capsaicin-containing red pepper sauce (0...
October 5, 2017: Clinical and Translational Gastroenterology
https://www.readbyqxmd.com/read/28981080/improvement-in-esophageal-distensibility-in-response-to-medical-and-diet-therapy-in-eosinophilic-esophagitis
#13
Dustin A Carlson, Ikuo Hirano, Angelika Zalewski, Nirmala Gonsalves, Zhiyue Lin, John E Pandolfino
OBJECTIVES: We aimed to evaluate the effect of medical and diet therapies on esophageal distensibility assessed using the functional lumen imaging probe (FLIP) and the association of changes in esophageal distensibility with clinical outcomes in eosinophilic esophagitis (EoE). METHODS: Patients with EoE were evaluated with FLIP during endoscopy at baseline and following therapy without interval dilatation. Evaluation also included a validated patient-reported outcome (PRO; a positive PRO was considered at a 30% score improvement), mucosal biopsies, and scoring of endoscopic features of EoE...
October 5, 2017: Clinical and Translational Gastroenterology
https://www.readbyqxmd.com/read/28914262/transmembrane-tnf-%C3%AE-density-but-not-soluble-tnf-%C3%AE-level-is-associated-with-primary-response-to-infliximab-in-inflammatory-bowel-disease
#14
Azade Amini Kadijani, Hamid Asadzadeh Aghdaei, Dario Sorrentino, Alireza Mirzaei, Shabnam Shahrokh, Hedieh Balaii, Vu Q Nguyen, Jessica L Mays, Mohammad Reza Zali
OBJECTIVES: Anti-tumor necrosis factor (TNF)-α agents like Infliximab (IFX) are effective in the treatment of inflammatory bowel diseases (IBDs) and are widely used. However, a considerable number of patients do not respond or lose response to this therapy. Preliminary evidence suggests that transmembrane TNF-α (tmTNF-α) might be linked to response to IFX by promoting reverse signaling-induced apoptosis in inflammatory cells. The main aim of this study was the evaluation of this hypothesis in primary IFX non-responders...
September 14, 2017: Clinical and Translational Gastroenterology
https://www.readbyqxmd.com/read/28858292/endoscopic-drainage-of-50-of-liver-in-malignant-hilar-biliary-obstruction-using-metallic-or-fenestrated-plastic-stents
#15
Tossapol Kerdsirichairat, Mustafa A Arain, Rajeev Attam, Brooke Glessing, Yan Bakman, Stuart K Amateau, Martin L Freeman
OBJECTIVES: Endoscopic drainage of complex hilar tumors has generally resulted in poor outcomes. Drainage of >50% of liver volume has been proposed as optimal, but not evaluated using long multifenestrated plastic stents (MFPS) or self-expanding metal stents (SEMS). We evaluated outcomes of endoscopic drainage of malignant hilar strictures using optimal strategy and stents, and determined factors associated with stent patency, survival, and complications. METHODS: Cross-sectional study was conducted at an academic center over 5 years...
August 31, 2017: Clinical and Translational Gastroenterology
https://www.readbyqxmd.com/read/28858291/epidemiology-and-natural-history-of-primary-biliary-cholangitis-in-the-chinese-a-territory-based-study-in-hong-kong-between-2000-and-2015
#16
Ka-Shing Cheung, Wai-Kay Seto, James Fung, Ching-Lung Lai, Man-Fung Yuen
OBJECTIVES: Studies on the epidemiology of primary biliary cholangitis (PBC) in the Chinese population are lacking. We aimed to determine the epidemiology of PBC in Hong Kong (HK) with a population of 7.3 million. METHODS: We retrieved data from the electronic database of the HK Hospital Authority, the only public healthcare provider in Hong Kong. PBC cases between 2000 and 2015 were identified by International Classification of Diseases (ICD)-9 code. We estimated the age-/sex-adjusted incidence rate and prevalence of PBC, and analyzed the adverse outcomes (hepatocellular carcinoma (HCC), liver transplantation, and death)...
August 31, 2017: Clinical and Translational Gastroenterology
https://www.readbyqxmd.com/read/28817113/clinical-and-histologic-mimickers-of-celiac-disease
#17
REVIEW
Amrit K Kamboj, Amy S Oxentenko
Celiac disease is an autoimmune disorder of the small bowel, classically associated with diarrhea, abdominal pain, and malabsorption. The diagnosis of celiac disease is made when there are compatible clinical features, supportive serologic markers, representative histology from the small bowel, and response to a gluten-free diet. Histologic findings associated with celiac disease include intraepithelial lymphocytosis, crypt hyperplasia, villous atrophy, and a chronic inflammatory cell infiltrate in the lamina propria...
August 17, 2017: Clinical and Translational Gastroenterology
https://www.readbyqxmd.com/read/28796231/impact-of-fecal-hb-levels-on-advanced-neoplasia-detection-and-the-diagnostic-miss-rate-for-colorectal-cancer-screening-in-high-risk-vs-average-risk-subjects-a-multi-center-study
#18
Satimai Aniwan, Thawee Ratanachu-Ek, Supot Pongprasobchai, Julajak Limsrivilai, Ong-Ard Praisontarangkul, Pises Pisespongsa, Pisaln Mairiang, Apichat Sangchan, Jaksin Sottisuporn, Naruemon Wisedopas, Pinit Kullavanijaya, Rungsun Rerknimitr
OBJECTIVES: The Asia-Pacific Colorectal Screening (APCS) scoring system was developed to identify high-risk subjects for advanced neoplasia. However, the appropriate fecal immunochemical test (FIT) cutoff for high-risk population may be different from that of average-risk population. We aimed to evaluate the FIT performance at different cutoffs in high-risk subjects undergoing colorectal cancer (CRC) screening. METHODS: We prospectively enrolled asymptomatic subjects aged 50-75 years...
August 10, 2017: Clinical and Translational Gastroenterology
https://www.readbyqxmd.com/read/28771242/pancreatic-and-intestinal-function-post-roux-en-y-gastric-bypass-surgery-for-obesity
#19
Stephen J D O'Keefe, Tina Rakitt, Junhai Ou, Ihab I El Hajj, Elizabeth Blaney, Kishore Vipperla, Jens-Jules Holst, Jens Rehlfeld
OBJECTIVES: Despite the fact that the most effective treatment for morbid obesity today is gastric bypass surgery, some patients develop life-threatening nutritional complications associated with their weight loss. METHODS: Here we examine the influence of the altered anatomy and digestive physiology on pancreatic secretion and fat absorption. Thirteen post Roux-en-Y gastric bypass (RYGB) patients who had lost >100 lbs in the first year following surgery and who gave variable histories of gastrointestinal (GI) dysfunction, were selected for study...
August 3, 2017: Clinical and Translational Gastroenterology
https://www.readbyqxmd.com/read/28771241/efficacy-and-safety-of-endoscopic-resection-followed-by-chemoradiotherapy-for-superficial-esophageal-squamous-cell-carcinoma-a-retrospective-study
#20
Kenta Hamada, Ryu Ishihara, Yasushi Yamasaki, Noboru Hanaoka, Sachiko Yamamoto, Masamichi Arao, Sho Suzuki, Taro Iwatsubo, Minoru Kato, Yusuke Tonai, Satoki Shichijo, Noriko Matsuura, Hiroko Nakahira, Takashi Kanesaka, Tomofumi Akasaka, Yoji Takeuchi, Koji Higashino, Noriya Uedo, Hiroyasu Iishi, Naoyuki Kanayama, Takero Hirata, Yoshifumi Kawaguchi, Koji Konishi, Teruki Teshima
OBJECTIVES: The reported 1- and 3-year overall survival rates after esophagectomy for stage I superficial esophageal squamous cell carcinoma (SESCC) are 95-97% and 86%, and those after definitive chemoradiotherapy (CRT) are 98% and 89%, respectively. This study was performed to elucidate the efficacy and safety of another treatment option for SESCC: endoscopic resection (ER) followed by CRT. METHODS: We retrospectively reviewed the overall survival, recurrence, and grade ≥3 adverse events of consecutive patients who refused esophagectomy and underwent ER followed by CRT for SESCC from 1 January 2006 to 31 December 2012...
August 3, 2017: Clinical and Translational Gastroenterology
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