All Stories

  1. Multicenter Epidemiological Survey of Pneumatosis Intestinalis in Japan

    Article • October 2021, Research Square

    Hirotsugu Sakamoto

  2. Gel immersion endoscopy: Innovation in securing the visual field – Clinical experience with 265 consecutive procedures

    Article • Endoscopy International Open, June 2021, Thieme Publishing Group

    Hirotsugu Sakamoto

  3. The pocket-creation method facilitates endoscopic submucosal dissection of gastric neoplasms involving the pyloric ring

    Article • Endoscopy International Open, June 2021, Thieme Publishing Group

    Hirotsugu Sakamoto

  4. Pathological evaluation of a rectal endoscopic submucosal dissection specimen using micro-computed tomography

    Article • Endoscopy, June 2021, Thieme Publishing Group

    Hirotsugu Sakamoto

  5. Endoscopic ischemic polypectomy for small-bowel polyps in patients with Peutz–Jeghers syndrome

    Article • Endoscopy, October 2020, Thieme Publishing Group

    Hirotsugu Sakamoto

  6. Prospective randomized trial comparing the pocket-creation method and conventional method of colorectal endoscopic submucosal dissection

    Article • Gastrointestinal Endoscopy, August 2020, Elsevier

    Hirotsugu Sakamoto

  7. The pocket-creation method may facilitate endoscopic submucosal dissection of large colorectal sessile tumors

    Article • Endoscopy International Open, July 2020, Thieme Publishing Group

    Hirotsugu Sakamoto

  8. TH1 cell-inducing Escherichia coli strain identified from the small intestinal mucosa of patients with Crohn’s disease

    Article • Gut Microbes, July 2020, Taylor & Francis

    Hirotsugu Sakamoto

  9. Double-balloon endoscopy facilitates efficient endoscopic resection of duodenal and jejunal polyps in patients with familial adenomatous polyposis

    Article • Endoscopy, May 2020, Thieme Publishing Group

    Hirotsugu Sakamoto

  10. Significance of Conducting 2 Types of Fecal Tests in Patients With Ulcerative Colitis

    Article • Clinical Gastroenterology and Hepatology, May 2020, Elsevier

    Hirotsugu Sakamoto, Taku Kobayashi

  11. Colon polyp detection using linked color imaging compared to white light imaging: Systematic review and meta‐analysis

    Article • Digestive Endoscopy, January 2020, Wiley

    Hirotsugu Sakamoto

  12. Double-Balloon Endoscopy-Assisted Balloon Dilation of Strictures Secondary to Small-Intestinal Lymphoma

    Article • Clinical Endoscopy, January 2020, The Korean Society of Gastrointestinal Endoscopy (KAMJE)

    Hirotsugu Sakamoto

  13. Effectiveness and Safety of Vonoprazan versus Proton Pump Inhibitors for Second-Line Helicobacter pylori Eradication Therapy: Systematic Review and Meta-Analysis

    Article • Digestion, January 2020, Karger Publishers

    Hirotsugu Sakamoto

  14. Double‐balloon endoscopy using an overtube with a vent

    Article • Digestive Endoscopy, October 2019, Wiley

    Hirotsugu Sakamoto

  15. Timing and Predictors of Recurrence of Dyspepsia Symptoms after Cessation of Acotiamide Therapy for Functional Dyspepsia: A Long-Term Observational Study

    Article • Digestion, May 2019, Karger Publishers

    Hirotsugu Sakamoto

  16. The pocket-creation method facilitates colonic endoscopic submucosal dissection (with video)

    Article • Gastrointestinal Endoscopy, May 2019, Elsevier

    Hirotsugu Sakamoto

  17. Curative endoscopic treatment of intussusception due to a giant colonic lipoma using a wedged balloon and ligation with detachable snares

    Article • Clinical Journal of Gastroenterology, February 2019, Springer Science + Business Media

    Hirotsugu Sakamoto

  18. Gel immersion endoscopy simplifies hemostasis during endoscopic submucosal dissection using the pocket-creation method

    Article • Endoscopy, August 2018, Thieme Publishing Group

    Hirotsugu Sakamoto

  19. Pre-treatment with proton pump inhibitors decreases the success of primary Helicobacter pylori eradication using a vonoprazan-based regimen

    Article • The Kaohsiung Journal of Medical Sciences, August 2018, Wiley

    Hirotsugu Sakamoto

  20. Long-term outcomes of patients with symptomatic gastroesophageal reflux disease treated with vonoprazan

    Article • Scandinavian Journal of Gastroenterology, July 2018, Taylor & Francis

    Hirotsugu Sakamoto

  21. Jejunal endoscopic submucosal dissection is feasible using the pocket-creation method and balloon-assisted endoscopy

    Article • Endoscopy, June 2018, Thieme Publishing Group

    Hirotsugu Sakamoto

  22. Efficacy and safety of cold versus hot snare polypectomy for resecting small colorectal polyps: Systematic review and meta-analysis

    Article • Digestive Endoscopy, May 2018, Wiley

    Hironori Yamamoto, Hirotsugu Sakamoto

  23. Balloon-assisted endoscopy facilitates endoscopic submucosal dissection of difficult superficial proximal colon tumors

    Article • Endoscopy, February 2018, Thieme Publishing Group

    Hirotsugu Sakamoto

  24. Adherence to an Acotiamide Therapeutic Regimen Improves Long-Term Outcomes in Patients with Functional Dyspepsia

    Article • Journal of Gastrointestinal and Liver Diseases, December 2017, Romanian Society of Gastroenterology and Heptatology

    Hirotsugu Sakamoto

  25. Vonoprazan treatment improves gastrointestinal symptoms in patients with gastroesophageal reflux disease

    Article • The Kaohsiung Journal of Medical Sciences, December 2017, Wiley

    Hirotsugu Sakamoto

  26. Esophageal endoscopic submucosal dissection using sodium hyaluronate is safe and effective

    Article • Minimally Invasive Therapy & Allied Technologies, July 2017, Taylor & Francis

    Hironori Yamamoto, Hirotsugu Sakamoto

  27. Vonoprazan 10 mg daily is effective for the treatment of patients with proton pump inhibitor-resistant gastroesophageal reflux disease

    Article • Biomedical Reports, July 2017, Spandidos Publications

    Hirotsugu Sakamoto

  28. Mucosal healing of Crohn’s disease in a patient with concurrent systemic lupus erythematosus using infliximab

    Article • Clinical Journal of Gastroenterology, March 2017, Springer Science + Business Media

    Hirotsugu Sakamoto

  29. Reply to Tan et al.

    Article • Endoscopy, March 2017, Thieme Publishing Group

    Hirotsugu Sakamoto

  30. Double-Balloon Colonoscopy Has a Higher Cecal Intubation Rate Than Conventional Colonoscopy Using a Colon Simulator

    Article • Digestive Diseases and Sciences, February 2017, Springer Science + Business Media

    Hirotsugu Sakamoto

  31. Pocket-creation method facilitates endoscopic submucosal dissection of colorectal laterally spreading tumors, non-granular type

    Article • Endoscopy International Open, February 2017, Thieme Publishing Group

    Hirotsugu Sakamoto

  32. Duodenal endoscopic submucosal dissection is feasible using the pocket-creation method

    Article • Endoscopy, November 2016, Thieme Publishing Group

    Hirotsugu Sakamoto

  33. Use of an over-the-scope clipping device for closure of a jejuno-sigmoid fistula: a case report with long-term follow-up

    Article • Clinical Journal of Gastroenterology, September 2016, Springer Science + Business Media

    Hirotsugu Sakamoto

  34. Comparison of vonoprazan and proton pump inhibitors for eradication of Helicobacter pylori

    Article • The Kaohsiung Journal of Medical Sciences, May 2016, Wiley

    Hirotsugu Sakamoto

  35. Laterally Spreading Tumor of the Rectum Delineated with Linked Color Imaging Technology

    Article • Clinical Endoscopy, March 2016, The Korean Society of Gastrointestinal Endoscopy (KAMJE)

    Hirotsugu Sakamoto

  36. Long-term Outcomes in Patients with Small Intestinal Strictures Secondary to Crohnʼs Disease After Double-balloon Endoscopy-assisted Balloon Dilation

    Article • Inflammatory Bowel Diseases, February 2016, Oxford University Press (OUP)

    Hirotsugu Sakamoto

  37. The effect of acotiamide on epigastric pain syndrome and postprandial distress syndrome in patients with functional dyspepsia

    Article • The Journal of Medical Investigation, January 2016, University of Tokushima Faculty of Medicine

    Hirotsugu Sakamoto

  38. Long-Term Outcomes in Patients with Overt Obscure Gastrointestinal Bleeding After Negative Double-Balloon Endoscopy

    Article • Digestive Diseases and Sciences, July 2015, Springer Science + Business Media

    Hirotsugu Sakamoto

  39. Advanced rectal carcinoma caused by tumor cell implantation after curative endoscopic submucosal dissection of an intramucosal rectal carcinoma

    Article • Endoscopy, June 2015, Thieme Publishing Group

    Hironori Yamamoto, Hirotsugu Sakamoto

  40. A novel method for endoscopic placement of a capsule endoscope with use of a transparent hood and real-time viewer

    Article • Endoscopy, June 2015, Thieme Publishing Group

    Hirotsugu Sakamoto

  41. Comparative Analysis of Gastrointestinal Microbiota Between Normal and Caudal-Related Homeobox 2 (Cdx2) Transgenic Mice

    Article • Intestinal Research, January 2015, Korean Association for the Study of Intestinal Diseases (KAMJE)

    Hirotsugu Sakamoto

  42. Elevated Serum anti-Helicobacter pylori IgG Levels is a Predictor of Successful Eradication Therapy

    Article • Journal of Gastroenterology and Hepatology Research, January 2015, ACT Publishing Group

    Hirotsugu Sakamoto

  43. Cyclooxygenase 2 in Gastric Carcinoma Is Expressed in Doublecortin- and CaM Kinase-Like-1-Positive Tuft Cells

    Article • Gut and Liver, September 2014, The Editorial Office of Gut and Liver

    Hirotsugu Sakamoto

  44. A calibrated, small-caliber tip, transparent hood to aid endoscopic balloon dilation of intestinal strictures in Crohn’s disease: successful use of prototype

    Article • Endoscopy, November 2013, Thieme Publishing Group

    Hirotsugu Sakamoto

  45. SOX9 Is Highly Expressed in Nonampullary Duodenal Adenoma and Adenocarcinoma in Humans

    Article • Gut and Liver, September 2013, The Editorial Office of Gut and Liver

    Hirotsugu Sakamoto

  46. Double-balloon endoscopy for hepatolithiasis with multiple stones associated with reflux of intestinal contents into the bile duct in a patient with Roux-en-Y hepaticojejunostomy

    Article • Digestive Endoscopy, October 2012, Wiley

    Hirotsugu Sakamoto

  47. Nonsurgical management of small-bowel polyps in Peutz–Jeghers syndrome with extensive polypectomy by using double-balloon endoscopy

    Article • Gastrointestinal Endoscopy, August 2011, Elsevier

    Hirotsugu Sakamoto

  48. A nationwide survey of hepatitis E virus (HEV) infection in wild boars in Japan: identification of boar HEV strains of genotypes 3 and 4 and unrecognized genotypes

    Article • Archives of Virology, April 2011, Springer Science + Business Media

    Hirotsugu Sakamoto

  49. Cell lineage dynamics in the process leading to intestinal metaplasia

    Article • Journal of Gastroenterology, March 2011, Springer Science + Business Media

    Hirotsugu Sakamoto

  50. Expression of Claudin-2 in intestinal metaplastic mucosa of Cdx2-transgenic mouse stomach

    Article • Scandinavian Journal of Gastroenterology, July 2010, Taylor & Francis

    Hirotsugu Sakamoto

  51. Direct repression of Sonic Hedgehog expression in the stomach by Cdx2 leads to intestinal transformation

    Article • Biochemical Journal, April 2010, Portland Press Ltd.

    Hirotsugu Sakamoto

  52. Intestinal metaplasia in gallbladder correlates with high amylase levels in bile in patients with a morphologically normal pancreaticobiliary duct

    Article • Human Pathology, December 2009, Elsevier

    Hirotsugu Sakamoto

  53. Transgenic Cdx2 induces endogenous Cdx1 in intestinal metaplasia of Cdx2-transgenic mouse stomach

    Article • European Journal of Biochemistry, September 2009, Wiley

    Hirotsugu Sakamoto

  54. Homeobox protein CDX2 reduces Cox-2 transcription by inactivating the DNA-binding capacity of nuclear factor-κB

    Article • Journal of Gastroenterology, September 2007, Springer Science + Business Media

    Hirotsugu Sakamoto

  55. A close relationship between intestinal metaplasia and Cdx2 expression in human gallbladders with cholelithiasis

    Article • Human Pathology, January 2007, Elsevier

    Hirotsugu Sakamoto

  56. The intestine-specific homeobox gene Cdx2 induces expression of the basic helix–loop–helix transcription factor Math1

    Article • Differentiation, July 2006, Elsevier

    Hirotsugu Sakamoto

  57. Analysis of the full-length genome of hepatitis E virus isolates obtained from wild boars in Japan

    Article • Journal of General Virology, December 2005, Society for General Microbiology

    Hirotsugu Sakamoto

  58. Cdx2 specifies the differentiation of morphological as well as functional absorptive enterocytes of the small intestine

    Article • The International Journal of Developmental Biology, January 2005, UBC Press

    Hirotsugu Sakamoto