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  1. Article

    Open Access

    A review on the current status and definitions of activity indices in inflammatory bowel disease: how to use indices for precise evaluation

    Many clinical trials have been conducted for inflammatory bowel disease (IBD), so various clinical indices (CIs) and endoscopic indices (EIs) have also been evaluated. However, recently, with the progress of I...

    Masahiro Kishi, Fumihito Hirai, Noritaka Takatsu in Journal of Gastroenterology (2022)

  2. Article

    Open Access

    A nationwide survey concerning the mortality and risk of progressing severity due to arterial and venous thromboembolism in inflammatory bowel disease in Japan

    The mortality and risk factors of severe disease and death due to arterial and venous thromboembolism (ATE and VTE, respectively) in patients with inflammatory bowel disease (IBD) remain unclear, especially in...

    Katsuyoshi Ando, Mikihiro Fujiya, Kenji Watanabe in Journal of Gastroenterology (2021)

  3. No Access

    Article

    Ulcerative colitis-related severe enteritis: an infrequent but serious complication after colectomy

    After colectomy for ulcerative colitis (UC), very severe and sometimes lethal enteritis can develop. However, the clinical features remain uncertain because of the low incidence, diversity of symptoms, and und...

    Atsushi Kohyama, Kazuhiro Watanabe, Akira Sugita in Journal of Gastroenterology (2021)

  4. Article

    Open Access

    Adrenomedullin for steroid-resistant ulcerative colitis: a randomized, double-blind, placebo-controlled phase-2a clinical trial

    Adrenomedullin (AM) is a bioactive peptide having many pleiotropic effects, including mucosal healing and immunomodulation. AM has shown beneficial effects in rodent models and in preliminary study for patient...

    Toshihiro Kita, Sinya Ashizuka, Naoki Ohmiya in Journal of Gastroenterology (2021)

  5. Article

    Open Access

    Evidence-based diagnosis and clinical practice guidelines for intestinal Behçet’s disease 2020 edited by Intractable Diseases, the Health and Labour Sciences Research Grants

    Behçet's disease (BD) is an intractable systemic inflammatory disease characterized by four main symptoms: oral and genital ulcers and ocular and cutaneous involvement. The Japanese diagnostic criteria of BD c...

    Kenji Watanabe, Satoshi Tanida, Nagamu Inoue, Reiko Kunisaki in Journal of Gastroenterology (2020)

  6. Article

    Open Access

    Effects of vedolizumab in Japanese patients with Crohn’s disease: a prospective, multicenter, randomized, placebo-controlled Phase 3 trial with exploratory analyses

    Vedolizumab is a gut-selective humanized antibody that binds the α4β7 integrin. We evaluated efficacy and safety of vedolizumab in Japanese patients with moderate-to-severe Crohn’s disease (CD).

    Kenji Watanabe, Satoshi Motoya, Haruhiko Ogata in Journal of Gastroenterology (2020)

  7. No Access

    Article

    Indigo naturalis is effective even in treatment-refractory patients with ulcerative colitis: a post hoc analysis from the INDIGO study

    We recently reported the efficacy of indigo naturalis (IN) in patients with active ulcerative colitis (UC) in a randomized controlled trial (INDIGO study). However, few studies have been conducted to investiga...

    Makoto Naganuma, Shinya Sugimoto, Tomohiro Fukuda in Journal of Gastroenterology (2020)

  8. Article

    Correction to: High-resolution melt analysis enables simple genoty** of complicated polymorphisms of codon 18 rendering the NUDT15 diplotype

    The correct name of the last author should be.

    Yoichi Kakuta, Yasuhiro Izumiyama, Daisuke Okamoto in Journal of Gastroenterology (2020)

  9. Article

    Correction to: Estimated prevalence of ulcerative colitis and Crohn’s disease in Japan in 2015: an analysis of a nationwide survey

    The authors would like to correct the errors in the publication of the original article.

    Yoshitaka Murakami, Yuji Nishiwaki, Mari S. Oba in Journal of Gastroenterology (2020)

  10. No Access

    Article

    High-resolution melt analysis enables simple genoty** of complicated polymorphisms of codon 18 rendering the NUDT15 diplotype

    The genetic variants of NUDT15 have been verified to induce adverse events (AEs) of thiopurines. Codon 139 variants are frequently observed in Asians, while multiple variants are seen in codon 18 which also cause...

    Yoichi Kakuta, Yasuhiro Izumiyama, Daisuke Okamoto in Journal of Gastroenterology (2020)

  11. No Access

    Article

    Estimated prevalence of ulcerative colitis and Crohn’s disease in Japan in 2014: an analysis of a nationwide survey

    Almost a quarter century has passed since the first nationwide survey on ulcerative colitis (UC) and Crohn’s disease (CD) was conducted in Japan. In this study, we used a nationwide survey to estimate the numb...

    Yoshitaka Murakami, Yuji Nishiwaki, Mari S. Oba in Journal of Gastroenterology (2019)

  12. Article

    Open Access

    Correction to: Management of elderly ulcerative colitis in Japan

    Management of elderly ulcerative colitis in Japan

    Masaaki Higashiyama, Akira Sugita, Kazutaka Koganei in Journal of Gastroenterology (2019)

  13. No Access

    Article

    Adverse events in patients with ulcerative colitis treated with indigo naturalis: a Japanese nationwide survey

    Although indigo naturalis (IN) is effective for patients with active ulcerative colitis (UC), IN was associated with adverse events (AEs), including pulmonary arterial hypertension (PAH). Our aim was to evalua...

    Makoto Naganuma, Shinya Sugimoto, Hideo Suzuki in Journal of Gastroenterology (2019)

  14. No Access

    Article

    Withdrawal of thiopurines in Crohn’s disease treated with scheduled adalimumab maintenance: a prospective randomised clinical trial (DIAMOND2)

    The risk:benefit ratio of concomitant use of thiopurines with scheduled adalimumab (ADA) maintenance therapy for Crohn’s disease is controversial. The aim of this study is to identify the influence of withdraw...

    Tadakazu Hisamatsu, Shingo Kato, Reiko Kunisaki in Journal of Gastroenterology (2019)

  15. Article

    Open Access

    Management of elderly ulcerative colitis in Japan

    Japan has the largest aging society, where many elderly people have intractable diseases including ulcerative colitis (UC). Along with the increasing total number of UC patients, the number of elderly UC patie...

    Masaaki Higashiyama, Akira Sugita, Kazutaka Koganei in Journal of Gastroenterology (2019)

  16. Article

    Open Access

    Capsule endoscopy findings for the diagnosis of Crohn’s disease: a nationwide case–control study

    Capsule endoscopy can be used to identify the early stage of small bowel Crohn’s disease (CD). We evaluated significant small bowel capsule endoscopy (SBCE) findings that can lead to early diagnosis of CD.

    Motohiro Esaki, Takayuki Matsumoto, Naoki Ohmiya, Ema Washio in Journal of Gastroenterology (2019)

  17. Article

    Open Access

    NUDT15 codon 139 is the best pharmacogenetic marker for predicting thiopurine-induced severe adverse events in Japanese patients with inflammatory bowel disease: a multicenter study

    Despite NUDT15 variants showing significant association with thiopurine-induced adverse events (AEs) in Asians, it remains unclear which variants of NUDT15 or whether additional genetic variants should be test...

    Yoichi Kakuta, Yosuke Kawai, Daisuke Okamoto in Journal of Gastroenterology (2018)

  18. No Access

    Article

    Pouch functional outcomes after restorative proctocolectomy with ileal-pouch reconstruction in patients with ulcerative colitis: Japanese multi-center nationwide cohort study

    Although several complications capable of causing pouch failure may develop after restorative proctocolectomy (RPC) for ulcerative colitis (UC), the incidences and causes are conflicting and vary according to ...

    Motoi Uchino, Hiroki Ikeuchi, Akira Sugita, Kitaro Futami in Journal of Gastroenterology (2018)

  19. Article

    Open Access

    Evidence-based clinical practice guidelines for inflammatory bowel disease

    Inflammatory bowel disease (IBD) is a chronic disorder involving mainly the intestinal tract, but possibly other gastrointestinal and extraintestinal organs. Although etiology is still uncertain, recent knowle...

    Katsuyoshi Matsuoka, Taku Kobayashi, Fumiaki Ueno in Journal of Gastroenterology (2018)

  20. Article

    Erratum to: Four-year maintenance treatment with adalimumab in Japanese patients with moderately to severely active ulcerative colitis

    Yasuo Suzuki, Satoshi Motoya, Hiroyuki Hanai, Toshifumi Hibi in Journal of Gastroenterology (2017)

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