S. Hiraoka

T. Matsui, H. Kashida, T. Hibi, 2017, Clinical gastroenterology and hepatology : the official clinical practice journal of the American Gastroenterological Association.

Ulcerative Colitis Associated with a Mixed Neuroendocrine-non-neuroendocrine Neoplasm

H. Okada, S. Hiraoka, H. Kinugasa, 2020, Internal medicine.

Evaluation of Mucosal Healing of Ulcerative Colitis by a Quantitative Fecal Immunochemical Test

Jun Kato, Kazuhide Yamamoto, H. Okada, 2013, The American Journal of Gastroenterology.

Observer agreement for the diagnosis of intestinal acute graft-vs.-host disease based on the presence of villous atrophy in the terminal ileum

Sakuma Takahashi, F. Otsuka, H. Okada, 2020, Experimental and therapeutic medicine.

Berberine improved experimental chronic colitis by regulating interferon-γ- and IL-17A-producing lamina propria CD4+ T cells through AMPK activation

H. Morita, A. Takaki, H. Udono, 2019, Scientific Reports.

Evidence-based clinical practice guidelines for inflammatory bowel disease 2020

N. Enomoto, M. Saruta, T. Shimosegawa, 2021, Journal of Gastroenterology.

Increased serum concentrations and surface expression on peripheral white blood cells of decay-accelerating factor (CD55) in patients with active ulcerative colitis.

T. Fujita, Y. Shiratori, Kazuhide Yamamoto, 2004, The Journal of laboratory and clinical medicine.

Genetic Background of Mesalamine-induced Fever and Diarrhea in Japanese Patients with Inflammatory Bowel Disease.

M. Nagasaki, D. McGovern, K. Tokunaga, 2021, Inflammatory bowel diseases.

Complement regulatory proteins in normal human esophagus and esophageal squamous cell carcinoma

T. Fujita, Y. Shiratori, Kazuhide Yamamoto, 2004, Journal of gastroenterology and hepatology.

Difference in Ulex europaeus agglutinin I-binding activity of decay-accelerating factor detected in the stools of patients with colorectal cancer and ulcerative colitis.

Teizo Fujita, Kazuhide Yamamoto, Takao Tsuji, 2004, The Journal of laboratory and clinical medicine.

Paradoxical Roles of Oxidative Stress Response in the Digestive System before and after Carcinogenesis

A. Takaki, H. Okada, S. Kawano, 2019, Cancers.

CO(2) insufflation for potentially difficult colonoscopies: efficacy when used by less experienced colonoscopists.

Jun Kato, Yutaka Saito, Kazuhide Yamamoto, 2009, World journal of gastroenterology.

Evaluation of Mucosal Healing in Ulcerative Colitis by Fecal Calprotectin Vs. Fecal Immunochemical Test

Jun Kato, Kazuhide Yamamoto, H. Okada, 2015, The American Journal of Gastroenterology.

Multicenter survey on mesalamine intolerance in patients with ulcerative colitis

Seiyuu Suzuki, H. Okada, K. Matsueda, 2020, Journal of gastroenterology and hepatology.

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

M. Nagasaki, K. Tokunaga, M. Shinozaki, 2019, Journal of Gastroenterology.

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

M. Nagasaki, A. Masamune, T. Shimosegawa, 2018, Journal of Gastroenterology.

Externalization of Saw-Tooth Architecture in Small Serrated Polyps Implies the Presence of Methylation of IGFBP7

Kazuhide Yamamoto, Takehiro Tanaka, S. Hiraoka, 2012, Digestive Diseases and Sciences.

Genetic and epigenetic alterations of Ras signalling pathway in colorectal neoplasia: analysis based on tumour clinicopathological features

Jun Kato, Y. Shiratori, K. Harada, 2007, British Journal of Cancer.

DNA methylation of colon mucosa in ulcerative colitis patients: Correlation with inflammatory status

Kazuhide Yamamoto, Jun Kato, Yoshitaka Kondo, 2011, Inflammatory bowel diseases.

Fecal immunochemical test as a biomarker for inflammatory bowel diseases: can it rival fecal calprotectin?

Jun Kato, M. Ichinose, S. Takashima, 2016, Intestinal research.

Consecutive Measurements by Faecal Immunochemical Test in Quiescent Ulcerative Colitis Patients Can Detect Clinical Relapse.

Jun Kato, H. Okada, Yuusaku Sugihara, 2016, Journal of Crohn's & colitis.

The presence of large serrated polyps increases risk for colorectal cancer.

T. Morikawa, Jun Kato, Kazuhide Yamamoto, 2010, Gastroenterology.

Therapeutic Efficacy of Leukocytapheresis in a Pregnant Woman with Severe Active Ulcerative Colitis

Jun Kato, Y. Shiratori, Y. Kawahara, 2006, Digestion.

Centrifugal Leukocytapheresis Therapy for Ulcerative Colitis Without Concurrent Corticosteroid Administration

Jun Kato, Y. Shiratori, S. Hori, 2006, Therapeutic apheresis and dialysis : official peer-reviewed journal of the International Society for Apheresis, the Japanese Society for Apheresis, the Japanese Society for Dialysis Therapy.

Laterally spreading type of colorectal adenoma exhibits a unique methylation phenotype and K-ras mutations.

T. Morikawa, Jun Kato, Y. Shiratori, 2006, Gastroenterology.

Ratio of Platelet Reduction is an Early Predictive Factor for the Effectiveness of Leukocytapheresis for Ulcerative Colitis Patients

Jun Kato, Kazuhide Yamamoto, S. Hiraoka, 2009, Therapeutic apheresis and dialysis : official peer-reviewed journal of the International Society for Apheresis, the Japanese Society for Apheresis, the Japanese Society for Dialysis Therapy.

Two Cases of Leiomyoma in the Colon Masquerading as Other Types of Colonic Pedunculated Polyps

M. Iwamuro, Y. Kawahara, H. Okada, 2018, Case reports in gastrointestinal medicine.

Acute Appendicitis Caused by Previous Endoscopic Submucosal Dissection for an Adenoma Adjacent to the Appendiceal Orifice

H. Okada, Yuusaku Sugihara, K. Harada, 2017, Case Reports in Gastroenterology.

A Novel Role of Spred2 in the Colonic Epithelial Cell Homeostasis and Inflammation

Kazuhide Yamamoto, Toshihiro Ito, Junya Itakura, 2016, Scientific Reports.

Feasibility of Underwater Clip Closure for Large Mucosal Defects after Colorectal Endoscopic Submucosal Dissection

H. Okada, Y. Yamasaki, Yuusaku Sugihara, 2018, Digestion.

Blue laser imaging and linked color imaging improve the color difference value and visibility of colorectal polyps in underwater conditions

Y. Kawahara, H. Okada, Takehiro Tanaka, 2019, Digestive endoscopy : official journal of the Japan Gastroenterological Endoscopy Society.

A novel clip closure method using precutting and a reopenable clip after colorectal endoscopic submucosal dissection

M. Ohmori, Y. Yamasaki, K. Harada, 2021, Endoscopy.

Endoscopic radial incision and cutting method for refractory stricture of a rectal anastomosis after surgery

Y. Kawahara, H. Okada, S. Kawano, 2015, Endoscopy.

Long-term follow-up of ulcerative colitis patients treated on the basis of their cytomegalovirus antigen status.

Jun Kato, Kazuhide Yamamoto, Sakuma Takahashi, 2014, World journal of gastroenterology.

Evaluation of the Upper Gastrointestinal Tract in Ulcerative Colitis Patients.

M. Iwamuro, H. Okada, Takehiro Tanaka, 2018, Acta medica Okayama.

TOLERABILITY AND USEFULNESS OF MERCAPTOPURINE IN AZATHIOPRINE‐INTOLERANT JAPANESE PATIENTS WITH ULCERATIVE COLITIS

Kazuhide Yamamoto, H. Okada, S. Hiraoka, 2010, Digestive endoscopy : official journal of the Japan Gastroenterological Endoscopy Society.

Findings of Retrograde Contrast Study Through Double-balloon Enteroscopy Predict the Risk of Bowel Resections in Patients with Crohn's Disease with Small Bowel Stenosis

Jun Kato, H. Okada, S. Kawano, 2017, Inflammatory bowel diseases.

Usefulness of Intestinal Ultrasound to Detect Small Intestinal Stenosis in Patients With Crohn's Disease

H. Okada, S. Kawano, M. Ohmori, 2022, Journal of ultrasound in medicine : official journal of the American Institute of Ultrasound in Medicine.

Leucine-rich alpha-2 glycoprotein as a marker of mucosal healing in inflammatory bowel disease

Jun Kato, F. Otsuka, H. Okada, 2021, Scientific Reports.

A Calcium Enterolith in a Patient with Crohn's Disease and Its In Vitro Dissolubility in Citric Acid

M. Iwamuro, Y. Kawahara, H. Okada, 2017, Case reports in gastrointestinal medicine.

Long‐term outcomes of patients with Crohn's disease who received infliximab or adalimumab as the first‐line biologics

Jun Kato, Sakuma Takahashi, Seiyuu Suzuki, 2019, Journal of gastroenterology and hepatology.

Stool decay‐accelerating factor as a marker for monitoring the disease activity during leukocyte apheresis therapy in patients with refractory ulcerative colitis

T. Fujita, Y. Shiratori, Kazuhide Yamamoto, 2005, Journal of gastroenterology and hepatology.

Prediction of treatment outcome and relapse in inflammatory bowel disease

Jun Kato, Takeichi Yoshida, S. Hiraoka, 2019, Expert review of clinical immunology.

An Effective and Safe Sedation Technique Combining Target-Controlled Infusion Pump with Propofol, Intravenous Pentazocine, and Bispectral Index Monitoring for Peroral Double-Balloon Endoscopy

M. Iwamuro, Kazuhide Yamamoto, K. Hori, 2015, Digestion.

Prognosis of ulcerative colitis differs between patients with complete and partial mucosal healing, which can be predicted from the platelet count.

Jun Kato, Kazuhide Yamamoto, Sakuma Takahashi, 2014, World journal of gastroenterology.

Metformin ameliorates chronic colitis in a mouse model by regulating interferon‐γ‐producing lamina propria CD4+ T cells through AMPK activation

A. Takaki, H. Udono, H. Okada, 2022, FASEB journal : official publication of the Federation of American Societies for Experimental Biology.

Fecal Immunochemical Test Versus Fecal Calprotectin for Prediction of Mucosal Healing in Crohn's Disease

Jun Kato, H. Okada, S. Kawano, 2016, Inflammatory bowel diseases.

Methylation status of normal background mucosa is correlated with occurrence and development of neoplasia in the distal colon.

Jun Kato, Kazuhide Yamamoto, K. Harada, 2010, Human pathology.

Methylation of estrogen receptor 1 in colorectal adenomas is not age‐dependent, but is correlated with K‐ras mutation

Kazuhide Yamamoto, Jun Kato, Keita Harada, 2009, Cancer science.

S. Toyooka, Jun Kato, K. Kuwaki, 2008, Clinical biochemistry.

Detectability of colorectal neoplasia with fluorine-18-2-fluoro-2-deoxy-d-glucose positron emission tomography and computed tomography (FDG-PET/CT)

Kazuhide Yamamoto, Sakuma Takahashi, K. Hori, 2012, Journal of Gastroenterology.

Lymphoid hyperplasia of the colon and its association with underlying allergic airway diseases

K. Takata, M. Iwamuro, Kazuhide Yamamoto, 2016, International Journal of Colorectal Disease.

Villous atrophy in the terminal ileum is a specific endoscopic finding correlated with histological evidence and poor prognosis in acute graft-versus-host disease after allo-hematopoietic stem cell transplantation

K. Kuwaki, H. Okada, Takehiro Tanaka, 2018, BMC Gastroenterology.

The Usefulness of Colonoscopy for the Detection of Ileal Involvement in Intestinal Follicular Lymphoma Patients.

K. Takata, T. Yoshino, M. Iwamuro, 2017, Acta medica Okayama.

Two Cases of Rectal Xanthoma Presenting as Yellowish to Whitish Lesions during Colonoscopy

M. Iwamuro, Y. Kawahara, H. Okada, 2017, Case reports in gastrointestinal medicine.

A Case of Renovascular Hypertension Complicated with Ulcerative Colitis in a 40-year-old male

H. Sugiyama, Keiko Tanaka, J. Wada, 2014 .

Simultaneous Measurements of Faecal Calprotectin and the Faecal Immunochemical Test in Quiescent Ulcerative Colitis Patients Can Stratify Risk of Relapse

Jun Kato, Sakuma Takahashi, H. Okada, 2018, Journal of Crohn's & colitis.

Ulcerative colitis patients in clinical remission demonstrate correlations between fecal immunochemical test results, mucosal healing, and risk of relapse.

Hiroyuki Okada, Jun Kato, Keita Harada, 2015, World journal of gastroenterology.

Is sigmoidoscopy sufficient for evaluating inflammatory status of ulcerative colitis patients?

Jun Kato, Kazuhide Yamamoto, S. Hiraoka, 2011, Journal of gastroenterology and hepatology.

Slight increases in the disease activity index and platelet count imply the presence of active intestinal lesions in C-reactive protein-negative Crohn's disease patients.

Jun Kato, Kazuhide Yamamoto, Sakuma Takahashi, 2014, Internal medicine.

Anxiety and behavioral changes in Japanese patients with inflammatory bowel disease due to COVID-19 pandemic: a national survey

M. Saruta, N. Ohmiya, S. Terai, 2023, Journal of Gastroenterology.

Interim analysis of a multicenter registry study of COVID-19 patients with inflammatory bowel disease in Japan (J-COSMOS)

M. Saruta, Jun Kato, N. Ohmiya, 2022, Journal of Gastroenterology.

Lymphoproliferative disease in a patient with Takayasu arteritis and ulcerative colitis

J. Wada, S. Hiraoka, K. Sada, 2018, Modern Rheumatology Case Reports.

Noninvasive evaluation of mucosal healing in inflammatory bowel diseases

Jun Kato, M. Ichinose, Asuka Nakarai, 2013, Clinical Journal of Gastroenterology.

M1109 Specific Endoscopic Features of Ulcerative Colitis Complicated with Cytomegalovirus Infection

Jun Kato, K. Kuwaki, Kazuhide Yamamoto, 2009 .

Clinical features of chronic enteropathy associated with SLCO2A1 gene: a new entity clinically distinct from Crohn’s disease

T. Matsui, H. Ogata, N. Hosoe, 2018, Journal of Gastroenterology.

Appendiceal Orifice Inflammation in Ulcerative Colitis Mimicking Mucosa-Associated Lymphoid Tissue Lymphoma in the Cecum

M. Iwamuro, Y. Kawahara, H. Okada, 2020, Case reports in gastrointestinal medicine.

Metachronous Neoplasia and Local Recurrence after Colorectal Endoscopic Submucosal Dissection.

H. Okada, K. Harada, D. Takei, 2017, Acta medica Okayama.

Clinical Characteristics and Risk Factors for Rebleeding in Patients with Obscure Gastrointestinal Bleeding

M. Iwamuro, Y. Kawahara, H. Okada, 2020, Internal medicine.

Cytomegalovirus Colitis Followed by Colonic Pseudolipomatosis and Gastric Emphysema in a Post-resuscitation Patient

M. Iwamuro, Y. Kawahara, H. Okada, 2019, Internal medicine.

Treatment escalation and de-escalation decisions in Crohn’s disease: Delphi consensus recommendations from Japan, 2021

T. Matsui, H. Ogata, M. Saruta, 2023, Journal of Gastroenterology.

[A case of asymptomatic Sjögren's syndrome who developed interstitial pneumonia during monoclonal antibody therapy of Crohn's disease].

H. Okada, Takehiro Tanaka, S. Hiraoka, 2015, Nihon Shokakibyo Gakkai zasshi = The Japanese journal of gastro-enterology.

An Elevated Platelet Count Increases the Risk of Relapse in Ulcerative Colitis Patients with Mucosal Healing

Jun Kato, H. Okada, Yuusaku Sugihara, 2018, Gut and liver.

Decreased expression of hMLH1 correlates with reduced 5-fluorouracil-mediated apoptosis in colon cancer cells.

Jun Kato, Y. Shiratori, H. Shiraha, 2007, Oncology Report.

Enhanced expression of decay-accelerating factor, a complement-regulatory protein, in the specialized intestinal metaplasia of Barrett's esophagus.

T. Fujita, Y. Shiratori, Kazuhide Yamamoto, 2004, The Journal of laboratory and clinical medicine.

Clinical utility of a serum glycome analysis in patients with colorectal cancer

K. Nouso, S. Nishimura, H. Okada, 2022, Journal of gastroenterology and hepatology.

Dietary intake of vegetables, fruit, and antioxidants and risk of ulcerative colitis: A case-control study in Japan.

K. Sayama, Y. Hiasa, K. Higuchi, 2021, Nutrition (Burbank, Los Angeles County, Calif.).

IL12B rs6887695 polymorphism and interaction with alcohol intake in the risk of ulcerative colitis in Japan.

K. Sayama, Y. Hiasa, K. Higuchi, 2022, Cytokine.

Evaluation of complete cold forceps polypectomy resection rate for 3‐ to 5‐mm colorectal polyps

H. Okada, Takehiro Tanaka, M. Ohmori, 2020, Digestive endoscopy : official journal of the Japan Gastroenterological Endoscopy Society.

The novel latex agglutination turbidimetric immunoassay system for simultaneous measurements of calprotectin and hemoglobin in feces

Jun Kato, H. Okada, K. Harada, 2018, Intestinal research.

Fecal Immunochemical Test and Fecal Calprotectin Results Show Different Profiles in Disease Monitoring for Ulcerative Colitis

Jun Kato, H. Okada, Yuusaku Sugihara, 2017, Gut and liver.

DOP24 Japan prospective multicenter study for optimization of COVID-19 vaccinations based on the immune response and safety profile in Inflammatory Bowel Disease patients: Interim analyses of the J-COMBAT trial

M. Nojima, M. Saruta, M. Matsuura, 2022, Journal of Crohn's & Colitis.

Development of invasive colon cancer with microsatellite instability in a patient with hyperplastic polyposis syndrome.

Jun Kato, Kazuhide Yamamoto, T. Nagasaka, 2012, Japanese journal of clinical oncology.

Significance of measurement of serum trough level and anti‐drug antibody of adalimumab as personalised pharmacokinetics in patients with Crohn's disease: a subanalysis of the DIAMOND trial

T. Matsui, H. Kashida, M. Nojima, 2017, Alimentary pharmacology & therapeutics.

Enriched CD45RA−CD62L+ central memory T and decreased CD3+CD56+ natural killer T lymphocyte subsets in the rectum of ulcerative colitis patients

M. Iwamuro, F. Otsuka, H. Okada, 2022, International journal of immunopathology and pharmacology.

Serum Folate and Homocysteine Levels Are Associated With Colon Tumorigenesis in End-Stage Renal Disease Patients

T. Morikawa, K. Kuwaki, Kazuhide Yamamoto, 2011, Nutrition and cancer.

S. Toyooka, Jun Kato, K. Kuwaki, 2008, Clinical biochemistry.

Multicenter prospective registration study of efficacy and safety of capsule endoscopy in Crohn’s disease in Japan (SPREAD-J study)

H. Tajiri, M. Saruta, S. Oka, 2023, Journal of Gastroenterology.

Real-world efficacy and safety of advanced therapies in hospitalized patients with ulcerative colitis

Y. Hiasa, R. Okamoto, K. Mitsuyama, 2023, Journal of Gastroenterology.