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Journal of Gastroenterology

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https://www.readbyqxmd.com/read/28324167/efficacy-and-safety-of-golimumab-52-week-maintenance-therapy-in-japanese-patients-with-moderate-to-severely-active-ulcerative-colitis-a-phase-3-double-blind-randomized-placebo-controlled-study-pursuit-j-study
#1
Toshifumi Hibi, Yuya Imai, Asako Senoo, Kentaro Ohta, Yoshifumi Ukyo
BACKGROUND: The global phase 3 studies of golimumab [PURSUIT-SC and PURSUIT-maintenance (M)], an anti-tumor necrosis factor-α (anti-TNFα) antibody, have demonstrated clinical efficacy and safety as induction and maintenance therapies in patients with moderate to severely active ulcerative colitis (UC). This study aimed to evaluate the efficacy and safety of golimumab as maintenance therapy in the Japanese population. METHODS: In this phase 3, double-blind (DB), placebo-controlled, parallel group, randomized withdrawal study, 144 Japanese patients with moderately to severely active UC received golimumab doses of 200 mg (at week 0) and 100 mg (at week 2) subcutaneously during the 6-week open-label induction phase...
March 21, 2017: Journal of Gastroenterology
https://www.readbyqxmd.com/read/28321513/clinicopathological-features-of-superficial-non-ampurally-duodenal-epithelial-tumor-gastric-phenotype-of-histology-correlates-to-higher-malignant-potency
#2
Takahito Toba, Naoko Inoshita, Mitsuru Kaise, Kosuke Nomura, Yasutaka Kuribayashi, Masami Tanaka, Satoshi Yamashita, Tsukasa Furuhata, Daisuke Kikuchi, Akira Matsui, Toshifumi Mitani, Toshiro Iizuka, Shu Hoteya
BACKGROUND: Superficial non-ampullary duodenal epithelial tumors (SNADETs) are relatively rare, but they are now being detected more frequently due to advances in endoscopic technology. Nevertheless, the pathological nature of SNADETs remains unclear and a management strategy for these tumors has not been established. METHODS: To elucidate the clinicopathological features, we conducted a retrospective analysis of 138 endoscopically resected SNADETs. Lesions were classified into two groups by histological grade according to the Vienna classification: category 3 (71 lesions, 51...
March 20, 2017: Journal of Gastroenterology
https://www.readbyqxmd.com/read/28321512/four-year-maintenance-treatment-with-adalimumab-in-japanese-patients-with-moderately-to-severely-active-ulcerative-colitis
#3
Yasuo Suzuki, Satoshi Motoya, Hiroyuki Hanai, Toshifumi Hibi, Shiro Nakamura, Andreas Lazar, Anne Martin Robinson, Martha Skup, Nael Mohamed Mostafa, Bidan Huang, Roopal Thakkar, Mamoru Watanabe
BACKGROUND: The 52-week safety and efficacy of adalimumab in Japanese patients with moderately to severely active ulcerative colitis were demonstrated in a placebo-controlled phase 2/3 trial. Data from patients who enrolled in the open-label extension study are presented. METHODS: Remission and response per the full Mayo score (FMS) and the partial Mayo score (PMS), remission per the Inflammatory Bowel Disease Questionnaire (IBDQ) score, corticosteroid-free remission, and mucosal healing were assessed up to week 196 (week 208 for remission/response per PMS) of adalimumab treatment in patients who received one or more doses of adalimumab with use of a hybrid nonresponder imputation (hNRI) method...
March 20, 2017: Journal of Gastroenterology
https://www.readbyqxmd.com/read/28315983/retreatment-with-sofosbuvir-ledipasvir-and-add-on-ribavirin-for-patients-who-failed-daclatasvir-and-asunaprevir-combination-therapy
#4
Goki Suda, Koji Ogawa, Yoshiya Yamamoto, Masaki Katagiri, Ken Furuya, Kenichi Kumagai, Jun Konno, Megumi Kimura, Naoki Kawagishi, Masatsugu Ohara, Machiko Umemura, Jun Ito, Takaaki Izumi, Masato Nakai, Takuya Sho, Mitsuteru Natsuizaka, Kenichi Morikawa, Akihito Tsubota, Noritomo Shimada, Etsuko Iio, Yasuhito Tanaka, Naoya Sakamoto
BACKGROUND: The optimal retreatment regimen for patients with hepatitis C virus (HCV) infection who failed interferon-free, direct-acting antiviral (DAA) therapy is undetermined. In this study, we aimed to evaluate the efficacy and safety of 12-week retreatment with ledipasvir (LDV) and sofosbuvir (SOF) with add-on ribavirin (RBV) for patients who previously failed to respond to HCV-NS5A inhibitor, daclatasvir (DCV), and HCV-NS3 inhibitor, asunaprevir (ASV), therapy. METHODS: This multicenter, prospective study enrolled 15 patients with genotype-1 HCV infection who failed DCV/ASV combination therapy...
March 18, 2017: Journal of Gastroenterology
https://www.readbyqxmd.com/read/28315004/alex1-a-novel-tumor-suppressor-gene-inhibits-gastric-cancer-metastasis-via-the-par-1-rho-gtpase-signaling-pathway
#5
Li Pang, Jian-Fang Li, Liping Su, Mingde Zang, Zhiyuan Fan, Beiqin Yu, Xiongyan Wu, Chen Li, Min Yan, Zheng-Gang Zhu, Bingya Liu
BACKGROUND: The ALEX is a novel member of the armadillo family and ALEX1 was reported to be reduced or even lost in multiple solid tumors. However, its expression profile and oncogenic role in gastric cancer (GC) remains largely unknown. METHODS: ALEX1 expression was detected in 161 GC samples by immunohistochemistry staining. NCI-N87 cells transfected by ALEX1 lentivirus vectors and MKN28 cells transfected by ALEX1 shRNA were used for biological function investigation...
March 17, 2017: Journal of Gastroenterology
https://www.readbyqxmd.com/read/28275925/systematic-review-with-meta-analysis-loss-of-response-and-requirement-of-anti-tnf%C3%AE-dose-intensification-in-crohn-s-disease
#6
REVIEW
Yun Qiu, Bai-Li Chen, Ren Mao, Sheng-Hong Zhang, Yao He, Zhi-Rong Zeng, Shomron Ben-Horin, Min-Hu Chen
BACKGROUND: To review the frequency with which anti-TNF-α loses its effect and dose "intensification" is required for Crohn's disease (CD) treatment. METHODS: Electronic databases were searched for eligible studies. Raw data from studies meeting inclusion criteria were pooled for effect estimates. Subgroup analyses were performed for exploration of heterogeneity regarding all outcomes. RESULTS: Eighty-six eligible studies were included. Estimates of loss of response (LOR) incidence ranged from 8 to 71%...
March 8, 2017: Journal of Gastroenterology
https://www.readbyqxmd.com/read/28238019/nitric-oxide-afferent-sensory-nerves-and-antioxidative-enzymes-in-the-mechanism-of-protection-mediated-by-tricarbonyldichlororuthenium-ii-dimer-and-sodium-hydrosulfide-against-aspirin-induced-gastric-damage
#7
Marcin Magierowski, Magdalena Hubalewska-Mazgaj, Katarzyna Magierowska, Dagmara Wojcik, Zbigniew Sliwowski, Slawomir Kwiecien, Tomasz Brzozowski
BACKGROUND: Aspirin exerts side effects within the gastrointestinal tract. Hydrogen sulfide (H2S) and carbon monoxide (CO) have been implicated in gastroprotection but the mechanism of beneficial action of these gaseous mediators against aspirin-induced damage has not been fully studied. We determined the involvement of afferent sensory neurons, calcitonin-gene-related peptide (CGRP), lipid peroxidation, and nitric oxide (NO) biosynthesis in gastroprotection of H2S-releasing NaHS and CO-releasing tricarbonyldichlororuthenium(II) dimer (CORM-2) against aspirin-induced injury...
February 25, 2017: Journal of Gastroenterology
https://www.readbyqxmd.com/read/28229296/increased-expression-of-il12b-mrna-transcribed-from-the-risk-haplotype-for-crohn-s-disease-is-a-risk-factor-for-disease-relapse-in-japanese-patients
#8
Yoichi Kakuta, Tomoya Kimura, Kenichi Negoro, Masatake Kuroha, Hisashi Shiga, Katsuya Endo, Yoshitaka Kinouchi, Tooru Shimosegawa
BACKGROUND: IL12B is a promising candidate for a susceptibility gene in Crohn's disease (CD). The aim of this study was to perform a candidate gene analysis of IL12B in Japanese CD patients, investigate whether the genotype is associated with disease phenotypes, and determine how the risk allele affects susceptibility to CD. METHODS: Three hundred seventy-five patients with CD, 265 patients with ulcerative colitis, and 463 healthy controls were examined. Ten single-nucleotide polymorphisms (SNPs) around IL12B were genotyped...
February 22, 2017: Journal of Gastroenterology
https://www.readbyqxmd.com/read/28224228/validation-of-serological-models-for-staging-and-prognostication-of-hcc-in-patients-from-a-japanese-nationwide-survey
#9
Hienori Toyoda, Toshifumi Tada, Philip J Johnson, Namiki Izumi, Masumi Kadoya, Shuichi Kaneko, Norihiro Kokudo, Yonson Ku, Shoji Kubo, Takashi Kumada, Yutaka Matsuyama, Osamu Nakashima, Michiie Sakamoto, Tadatoshi Takayama, Masatoshi Kudo
BACKGROUND: Two serology-based scoring models for prognostication of patients with hepatocellular carcinoma (HCC), the BALAD and BALAD-2 models, were applied to a Japanese cohort of a nationwide follow-up survey of HCC. The ability of these models to predict the progression of HCC and the deterioration of liver function and to assess prognosis was evaluated. METHODS: BALAD and BALAD-2 scores were calculated in 24,029 patients from a cohort of Japanese nationwide survey based on the serum levels of five markers (bilirubin, albumin, lens culinaris agglutinin-reactive alpha-fetoprotein, alpha-fetoprotein, and des-gamma-carboxy prothrombin) measured at the time of HCC diagnosis...
February 21, 2017: Journal of Gastroenterology
https://www.readbyqxmd.com/read/28210867/management-and-outcome-of-gastrointestinal-bleeding-in-patients-taking-oral-anticoagulants-or-antiplatelet-drugs
#10
Sven Pannach, Julia Goetze, Sandra Marten, Thomas Schreier, Luise Tittl, Jan Beyer-Westendorf
BACKGROUND: Non-vitamin K dependent oral anticoagulants (NOACs) significantly decrease overall major bleeding rates compared with vitamin K antagonists (VKAs) but there is conflicting evidence regarding the relative risk of gastrointestinal bleeding. Since data regarding the types, the management, and the outcome of NOAC-associated gastrointestinal bleeding are scarce, we aimed to fill this gap by comparing cases of gastrointestinal bleeding associated with NOAC, VKA, or antiplatelet therapy...
February 16, 2017: Journal of Gastroenterology
https://www.readbyqxmd.com/read/28197804/molecular-alterations-in-colorectal-adenomas-and-intramucosal-adenocarcinomas-defined-by-high-density-single-nucleotide-polymorphism-arrays
#11
Makoto Eizuka, Tamotsu Sugai, Wataru Habano, Noriyuki Uesugi, Yayoi Takahashi, Keisuke Kawasaki, Eiichiro Yamamoto, Hiromu Suzuki, Takayuki Matsumoto
BACKGROUND: We examined colorectal adenomas and intramucosal adenocarcinomas (IMAs) to develop a genome-wide overview of copy number alterations (CNAs) during colorectal tumorigenesis. METHODS: We analysed CNAs using a high-resolution SNP array of isolated tumour glands obtained from 55 colorectal adenomas (35 low-grade adenomas and 20 high-grade adenomas) and 30 IMAs. Next, we examined whether frequent CNAs differed between low-grade and high-grade adenomas or high-grade adenomas and IMAs...
February 14, 2017: Journal of Gastroenterology
https://www.readbyqxmd.com/read/28197803/obesity-related-parameters-and-colorectal-adenoma-development
#12
Tae Jun Kim, Jee Eun Kim, Yoon-Ho Choi, Sung Noh Hong, Young-Ho Kim, Dong Kyung Chang, Poong-Lyul Rhee, Min-Ji Kim, Sin-Ho Jung, Hee Jung Son
BACKGROUND: Obesity increases the risk of colorectal adenoma and colorectal cancer. However, the obesity-related parameters that are best for assessing the risk of colorectal adenoma development remain unclear. We analyzed the parameters that may best describe the association between obesity and colorectal adenoma development. METHODS: In this retrospective cohort study, 3405 individuals underwent screening colonoscopy during routine health examinations. We measured body mass index; waist circumference; and metabolic parameters such as high-density lipoprotein-cholesterol, glucose, triglyceride, and systolic blood pressure...
February 14, 2017: Journal of Gastroenterology
https://www.readbyqxmd.com/read/28197802/effects-of-vaccine-acquired-polyclonal-anti-hbs-antibodies-on-the-prevention-of-hbv-infection-of-non-vaccine-genotypes
#13
Masaki Kato, Susumu Hamada-Tsutsumi, Chiaki Okuse, Aiko Sakai, Nobuyuki Matsumoto, Masaaki Sato, Toshiyuki Sato, Mitsumi Arito, Kazuki Omoteyama, Naoya Suematsu, Kazuki Okamoto, Takanobu Kato, Fumio Itoh, Ryo Sumazaki, Yasuhito Tanaka, Hiroshi Yotsuyanagi, Tomohiro Kato, Manae Suzuki Kurokawa
BACKGROUND: In universal hepatitis B (HB) vaccination, single vaccine-derived polyclonal anti-HBs antibodies (anti-HBs) need to inhibit infection of HB viruses (HBV) of non-vaccine genotypes. We experimentally addressed this issue. METHODS: Anti-HBs-positive sera were obtained by vaccination with genotype A- or C-derived HBs antigen (HBsAg, gtA-sera or gtC-sera). Their reactivity to genotype A- and C-derived HBsAg (gtA-Ag and gtC-Ag) was measured by ELISA. The capacity of sera to neutralize HBV was evaluated using an in vitro infection model...
February 14, 2017: Journal of Gastroenterology
https://www.readbyqxmd.com/read/28194526/long-term-outcomes-after-treatment-for-t1-colorectal-carcinoma-a-multicenter-retrospective-cohort-study-of-hiroshima-gi-endoscopy-research-group
#14
Yuzuru Tamaru, Shiro Oka, Shinji Tanaka, Shinji Nagata, Yuko Hiraga, Toshio Kuwai, Akira Furudoi, Tadamasa Tamura, Masaki Kunihiro, Hideharu Okanobu, Koichi Nakadoi, Hiroyuki Kanao, Makoto Higashiyama, Koji Arihiro, Kazuya Kuraoka, Fumio Shimamoto, Kazuaki Chayama
BACKGROUND: We aimed to clarify the long-term outcomes of patients with T1 colorectal carcinoma (CRC) after endoscopic resection (ER) and surgical resection. METHODS: We examined T1 CRC patients treated during 1992-2008 and who had ≥5 years of follow-up. Patients who did not meet the curative criteria after ER according to the Japanese Society for Cancer of the Colon and Rectum (JSCCR) guidelines were defined as "non-endoscopically curable" and classified into three groups: ER alone (Group A: 121 patients), additional surgery after ER (Group B: 238 patients), and surgical resection alone (Group C: 342 patients)...
February 13, 2017: Journal of Gastroenterology
https://www.readbyqxmd.com/read/28184998/natural-history-of-chronic-hepatitis-b-virus-infection-in-children-in-japan-a-comparison-of-mother-to-child-transmission-with-horizontal-transmission
#15
Tomoko Takano, Hitoshi Tajiri, Satoyo Hosono, Ayano Inui, Jun Murakami, Kosuke Ushijima, Yoko Miyoshi, Yuri Etani, Daiki Abukawa, Mitsuyoshi Suzuki, Stephen Brooks
BACKGROUND: It is necessary to evaluate the natural history of children with hepatitis B virus (HBV) infection in each country to consider their long-term management. METHODS: A multi-center observational study of children with chronic HBV infection who were diagnosed at age ≤15 years was carried out in 18 hospitals in Japan. RESULTS: We reviewed children with HBV infection including 381 with mother-to-child transmission (MTCT) and 154 with horizontal transmission, genotype C being the most prevalent virus genotype (83%)...
February 9, 2017: Journal of Gastroenterology
https://www.readbyqxmd.com/read/28168321/age-at-onset-is-associated-with-the-seasonal-pattern-of-onset-and-exacerbation-in-inflammatory-bowel-disease
#16
Manabu Araki, Shinichiro Shinzaki, Takuya Yamada, Shoko Arimitsu, Masato Komori, Narihiro Shibukawa, Akira Mukai, Sachiko Nakajima, Kazuo Kinoshita, Shinji Kitamura, Yoko Murayama, Hiroyuki Ogawa, Yuichi Yasunaga, Masahide Oshita, Hiroyuki Fukui, Eiji Masuda, Masahiko Tsujii, Satoshi Hiyama, Takahiro Inoue, Hideki Iijima, Tetsuo Takehara
BACKGROUND: Environmental factors are suggested to affect the pathogenesis of several diseases, including inflammatory bowel disease (IBD). The seasonality of disease onset and exacerbation in IBD, however, are not well established. We herein aimed to clarify the disease seasonality and to investigate the underlying characteristics in IBD patients exhibiting seasonality of the disease course. METHODS: This was a multicenter observational study comprising 20 institutions (Osaka Gut Forum) in Japan...
February 6, 2017: Journal of Gastroenterology
https://www.readbyqxmd.com/read/28138756/treatment-with-sofosbuvir-and-ledipasvir-without-ribavirin-for-12%C3%A2-weeks-is-highly-effective-for-recurrent-hepatitis-c-virus-genotype-1b-infection-after-living-donor-liver-transplantation-a-japanese-multicenter-experience
#17
Yoshihide Ueda, Toru Ikegami, Nobuhisa Akamatsu, Akihiko Soyama, Masahiro Shinoda, Ryoichi Goto, Hideaki Okajima, Tomoharu Yoshizumi, Akinobu Taketomi, Yuko Kitagawa, Susumu Eguchi, Norihiro Kokudo, Shinji Uemoto, Yoshihiko Maehara
BACKGROUND: The optimal therapy for recurrent hepatitis C virus (HCV) infection after liver transplantation has not yet been established. This study aimed to clarify the efficacy and safety of interferon-free therapy with sofosbuvir and ledipasvir without ribavirin for 12 weeks in Japanese patients with HCV genotype 1b infection after living donor liver transplantation. METHODS: A cohort study of living donor liver transplant recipients with recurrent HCV genotype 1b infection treated with sofosbuvir (400 mg/day) and ledipasvir (90 mg/day) was performed at six liver transplant centers in Japan...
January 30, 2017: Journal of Gastroenterology
https://www.readbyqxmd.com/read/28138755/epithelial-barrier-dysfunction-in-lymphocytic-colitis-through-cytokine-dependent-internalization-of-claudin-5-and-8
#18
Christian Barmeyer, Irene Erko, Karem Awad, Anja Fromm, Christian Bojarski, Svenja Meissner, Christoph Loddenkemper, Martin Kerick, Britta Siegmund, Michael Fromm, Michal R Schweiger, Jörg-Dieter Schulzke
BACKGROUND: Watery diarrhea is the cardinal symptom of lymphocytic colitis (LC). We have previously shown that colonic Na malabsorption is one of the major pathologic alterations of LC and found evidence for an epithelial barrier defect. On these grounds, this study aimed to identify the inherent mechanisms of this epithelial barrier dysfunction and its regulatory features. METHODS: Epithelial resistance (R (epi)) was determined by one-path impedance spectroscopy and (3)H-mannitol fluxes were performed on biopsies from sigmoid colon in miniaturized Ussing chambers...
January 30, 2017: Journal of Gastroenterology
https://www.readbyqxmd.com/read/28130705/nationwide-epidemiological-survey-of-early-chronic-pancreatitis-in-japan
#19
Atsushi Masamune, Kazuhiro Kikuta, Tatsuhide Nabeshima, Eriko Nakano, Morihisa Hirota, Atsushi Kanno, Kiyoshi Kume, Shin Hamada, Tetsuhide Ito, Motokazu Fujita, Atsushi Irisawa, Masanori Nakashima, Keiji Hanada, Takaaki Eguchi, Ryusuke Kato, Osamu Inatomi, Akio Shirane, Yoshifumi Takeyama, Ichiro Tsuji, Tooru Shimosegawa
BACKGROUND: The world's first diagnostic criteria for early CP were proposed in 2009 in Japan. This study aimed to clarify the clinico-epidemiological features of early CP in Japan. METHODS: Patients with early CP who were diagnosed according to the diagnostic criteria for early CP and had visited the selected hospitals in 2011 were surveyed. The study consisted of two-stage surveys: the number of patients with early CP was estimated by the first questionnaire and their clinical features were assessed by the second questionnaire...
January 27, 2017: Journal of Gastroenterology
https://www.readbyqxmd.com/read/28120127/a-novel-prostanoid-ep1-receptor-antagonist-ono-8539-reduces-acid-induced-heartburn-symptoms-in-healthy-male-volunteers-a-randomized-clinical-trial
#20
Takashi Kondo, Hiroo Sei, Takahisa Yamasaki, Toshihiko Tomita, Yoshio Ohda, Tadayuki Oshima, Hirokazu Fukui, Jiro Watari, Hiroto Miwa
BACKGROUND: Patients with proton pump inhibitor (PPI)-refractory gastroesophageal reflux disease (GERD) have unmet clinical needs. Recently, we reported that esophageal prostaglandin E2 (PGE2) plays a crucial role in the generation of heartburn. In the present study, we focused on the PGE2 receptor, EP1, and investigated the effects of ONO-8539, a novel EP1 receptor antagonist, on heartburn symptoms in healthy male volunteers. METHODS: This prospective, double-blind, placebo-controlled, two-period crossover study was performed in 20 healthy male subjects...
January 24, 2017: Journal of Gastroenterology
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