Department of Collaborative Medicine for Gastroenterology and Hepatology (CMGH)

75  articles.  
* There may be some overlapped articles listed due to the difference of format.

  1. Shintaro Akiyama, Hiromichi Shimizu, Akiko Tamura, Kaoru Yokoyama, Toshiyuki Sakurai, Mariko Kobayashi, Makoto Eizuka, Shunichi Yanai, Kei Nomura, Tomoyoshi Shibuya, Masahiro Takahara, Sakiko Hiraoka, Minako Sako, Atsushi Yoshida, Kozo Tsuruta, Shinichiro Yoshioka, Miki Koroku, Teppei Omori, Masayuki Saruta, Takayuki Matsumoto, Ryuichi Okamoto, Kiichiro Tsuchiya, Toshimitsu Fujii: Comparative Efficacy and Safety of Three Janus Kinase Inhibitors in Ulcerative Colitis: A Real-World Multicentre Study in Japan. Aliment Pharmacol Ther. 2024.11; Online ahead of print ( PubMed , DOI )

  2. Taku Kobayashi, Kei Moriya, Toshimitsu Fujii, Shigeki Bamba, Shinichiro Shinzaki, Akihiro Yamada, Takashi Hisabe, Shintaro Sagami, Shuji Hibiya, Takahiro Amano, Noritaka Takatsu, Katsutoshi Inagaki, Ken-Ichi Iwayama, Toshifumi Hibi: Early resolution of bowel urgency by budesonide foam enema results in improved quality of life in patients with ulcerative colitis: a multicenter prospective observational study. Intest Res. 2024.07; Online ahead of print ( PubMed , DOI )

  3. Shimizu H, Aonuma Y, Hibiya S, Kawamoto A, Takenaka K, Fujii T, Saito E, Nagahori M, Ohtsuka K, Okamoto R: Long-term efficacy and safety of tofacitinib in patients with ulcerative colitis: 3-year results from a real-world study. Intestinal research. 2024.07; ( PubMed , DOI )

  4. Noriyuki Ogata, Yasuharu Maeda, Masashi Misawa, Kento Takenaka, Kaoru Takabayashi, Marietta Iacucci, Takanori Kuroki, Kazumi Takishima, Keisuke Sasabe, Yu Niimura, Jiro Kawashima, Yushi Ogawa, Katsuro Ichimasa, Hiroki Nakamura, Singo Matsudaira, Seiko Sasanuma, Takemasa Hayashi, Kunihiko Wakamura, Hideyuki Miyachi, Toshiyuki Baba, Yuichi Mori, Kazuo Ohtsuka, Haruhiko Ogata, Shin-Ei Kudo: Artificial intelligence-assisted video colonoscopy for disease monitoring of ulcerative colitis: A prospective study. J Crohns Colitis. 2024.06; Online ahead of print ( PubMed , DOI )

  5. Motoki Makuuchi, Yoichi Kakuta, Junji Umeno, Toshimitsu Fujii, Tetsuya Takagawa, Takashi Ibuka, Miki Miura, Yu Sasaki, Sakuma Takahashi, Hiroshi Nakase, Hiroki Kiyohara, Keiichi Tominaga, Yosuke Shimodaira, Sakiko Hiraoka, Nobuhiro Ueno, Shunichi Yanai, Takeo Yoshihara, Kazuki Kakimoto, Katsuyoshi Matsuoka, Ryohei Hayashi, Sohachi Nanjo, Itaru Iwama, Yoh Ishiguro, Hirofumi Chiba, Katsuya Endo, Takashi Kagaya, Tomohiro Fukuda, Yasuhisa Sakata, Takahiro Kudo, Tomohisa Takagi, Kenichi Takahashi, Makoto Naganuma, Masaru Shinozaki, Noriyuki Ogata, Hiroki Tanaka, Kazuyuki Narimatsu, Haruka Miyazaki, Takashi Ishige, Motoyuki Onodera, Yu Hashimoto, Hiroshi Nagai, Yusuke Shimoyama, Takeo Naito, Rintaro Moroi, Hisashi Shiga, , Yoshitaka Kinouchi, Akira Andoh, Tadakazu Hisamatsu, Atsushi Masamune: Real-world NUDT15 genotyping and thiopurine treatment optimization in inflammatory bowel disease: a multicenter study. J Gastroenterol. 2024.04; Online ahead of print ( PubMed , DOI )

  6. Tatsuya Suzuki, Yuka Hayakawa, Shun Kaneko, Kento Takenaka, Keiya Watakabe, Yuko Kinowaki, Akira Takemoto, Kazuo Ohtsuka, Yasuhiro Asahina, Ryuichi Okamoto: Granulomatous hepatitis with Crohn's disease: a case report. Clin J Gastroenterol. 2024.03; Online ahead of print (3): 551-556. ( PubMed , DOI )

  7. Shintaro Akiyama, Kaoru Yokoyama, Soichi Yagi, Shinichiro Shinzaki, Kozo Tsuruta, Shinichiro Yoshioka, Minako Sako, Hiromichi Shimizu, Mariko Kobayashi, Toshiyuki Sakurai, Kei Nomura, Tomoyoshi Shibuya, Masahiro Takahara, Sakiko Hiraoka, Kyohei Sugai, Shunichi Yanai, Atsushi Yoshida, Miki Koroku, Teppei Omori, Masayuki Saruta, Takayuki Matsumoto, Ryuichi Okamoto, Kiichiro Tsuchiya, Toshimitsu Fujii: Efficacy and safety of filgotinib for ulcerative colitis: A real-world multicenter retrospective study in Japan. Aliment Pharmacol Ther. 2024.03; Online ahead of print ( PubMed , DOI )

  8. Marc Ferrante, Peter M Irving, Maria T Abreu, Jeffrey Axler, Xiang Gao, Qian Cao, Toshimitsu Fujii, Astrid Rausch, Joana Torres, Ezequiel Neimark, Alexandra Song, Kori Wallace, Kristina Kligys, Sofie Berg, Xiaomei Liao, Qing Zhou, Jasmina Kalabic, Brian Feagan, Remo Panaccione: Maintenance Risankizumab Sustains Induction Response in Patients with Crohn's Disease in a Randomized Phase 3 Trial. J Crohns Colitis. 2024.03; 18 (3): 416-423. ( PubMed , DOI )

  9. Xiang Gao, Toshimitsu Fujii, Byong Duk Ye, Jen-Wei Chou, Ken Sugimoto, Qian Cao, Kristina Kligys, Kaoru Murakoshi, Dennis Teng, Yafei Zhang, Hiroshi Nakase: Efficacy and safety of risankizumab for Crohn's disease in patients from Asian countries: a post hoc subanalysis of the global phase 3 ADVANCE, MOTIVATE, and FORTIFY studies. J Gastroenterol Hepatol. 2024.01; 39 (1): 55-65. ( PubMed , DOI )

  10. Ami Kawamoto, Kento Takenaka, Shuji Hibiya, Yoshio Kitazume, Hiromichi Shimizu, Toshimitsu Fujii, Eiko Saito, Kazuo Ohtsuka, Ryuichi Okamoto: Combination of leucine-rich alpha-2 glycoprotein and fecal markers detect Crohn's disease activity confirmed by balloon-assisted enteroscopy. Intest Res. 2024.01; 22 (1): 65-74. ( PubMed , DOI )

  1. Takeshi Ueda, Fumikazu Koyama, Akira Sugita, Hiroki Ikeuchi, Kitaro Futami, Kouhei Fukushima, Riichiro Nezu, Hideki Iijima, Tsunekazu Mizushima, Michio Itabashi, Kazuhiro Watanabe, Keisuke Hata, Takahide Shinagawa, Katsuyoshi Matsuoka, Kento Takenaka, Makoto Sasaki, Manabu Nagayama, Hironori Yamamoto, Masaru Shinozaki, Mikihiro Fujiya, Jun Kato, Yoshitaka Ueno, Shinji Tanaka, Yoshiki Okita, Yoshinari Hashimoto, Taku Kobayashi, Kazutaka Koganei, Motoi Uchino, Hisao Fujii, Yasuo Suzuki, Tadakazu Hisamatsu: Endoscopic Lesions of Postoperative Anastomotic Area in Patients With Crohn's Disease in the Biologic Era: A Japanese Multi-Centre Nationwide Cohort Study. J Crohns Colitis. 2023.12; 17 (12): 1968-1979. ( PubMed , DOI )

  2. Laurent Peyrin-Biroulet, Jessica R Allegretti, David T Rubin, Brian Bressler, Matthew Germinaro, Kuan-Hsiang Gary Huang, Nicole Shipitofsky, Hongyan Zhang, Rebbecca Wilson, Chenglong Han, Brian G Feagan, William J Sandborn, Julian Panés, Tadakazu Hisamatsu, Gary R Lichtenstein, Bruce E Sands, Axel Dignass ; QUASAR Study Group: Guselkumab in Patients With Moderately to Severely Active Ulcerative Colitis: QUASAR Phase 2b Induction Study. Gastroenterology. 2023.12; 165 (6): 1443-1457. ( PubMed , DOI )

  3. Shuji Hibiya, Takashi Fujii, Toshimitsu Fujii, Shinji Suzuki, Mayumi Kondo, Shinya Ooka, Yohei Furumoto, Seishin Azuma, Kei Tanaka, Hitoshi Kurata, Shohei Tanaka, Masayuki Kurosaki, Kazuyoshi Nagayama, Fumihiko Kusano, Yasuhiro Iizuka, Takahiro Kawamura, Hidekazu Ikemiyagi, Shinya Sakita, Tsunehito Yauchi, Hideki Watanabe, Ami Kawamoto, Yusuke Matsuyama, Kazuo Ohtsuka, Ryuichi Okamoto: COVID-19 severity is associated with the risk of gastrointestinal bleeding. BMJ Open Gastroenterol. 2023.11; 10 (1): e001199. ( PubMed , DOI )

  4. Takayuki Yamamoto, Hiroshi Nakase, Kenji Watanabe, Shinichiro Shinzaki, Noritaka Takatsu, Toshimitsu Fujii, Ryuichi Okamoto, Katsuyoshi Matsuoka, Akihiro Yamada, Reiko Kunisaki, Minoru Matsuura, Hisashi Shiga, Shigeki Bamba, Yohei Mikami, Takahiro Shimoyama, Satoshi Motoya, Takehiro Torisu, Taku Kobayashi, Naoki Ohmiya, Masayuki Saruta, Koichiro Matsuda, Takayuki Matsumoto, Atsuo Maemoto, Yoko Murata, Shinichi Yoshigoe, Shinya Nagasaka, Tsutomu Yajima, Tadakazu Hisamatsu, : Diagnosis and Clinical Features of Perianal Lesions in Newly Diagnosed Crohn's Disease: Subgroup Analysis from Inception Cohort Registry Study of Patients with Crohn's Disease (iCREST-CD). J Crohns Colitis. 2023.08; 17 (8): 1193-1206. ( PubMed , DOI )

  5. Katsuyoshi Matsuoka, Hajime Yamazaki, Masakazu Nagahori, Taku Kobayashi, Teppei Omori, Yohei Mikami, Toshimitsu Fujii, Shinichiro Shinzaki, Masayuki Saruta, Minoru Matsuura, Takayuki Yamamoto, Satoshi Motoya, Toshifumi Hibi, Mamoru Watanabe, Jovelle Fernandez, Shunichi Fukuhara, Tadakazu Hisamatsu: Association of ulcerative colitis symptom severity and proctocolectomy with multidimensional patient-reported outcomes: a cross-sectional study. J Gastroenterol. 2023.08; 58 (8): 751-765. ( PubMed , DOI )

  6. Yoshio Kitazume, Kento Takenaka, Kazuo Ohtsuka, Yasuo Ozawa, Koichiro Kimura, Ryosuke Watanabe, Junichi Tsuchiya, Toshimitsu Fujii, Masakazu Nagahori, Mamoru Watanabe, Ukihide Tateishi: Motility Mapping Quantification Using the Classical Optical Flow Algorithm for Small Bowel Crohn's Disease: Comparison with Balloon-assisted Enteroscopy Findings. Magn Reson Med Sci. 2023.07; 22 (3): 325-334. ( PubMed , DOI )

  7. Kento Takenaka, Ami Kawamoto, Yoshio Kitazume, Toshimitsu Fujii, Yumi Udagawa, Hiromichi Shimizu, Shuji Hibiya, Masakazu Nagahori, Kazuo Ohtsuka, Mamoru Watanabe, Ryuichi Okamoto: Transmural Remission Characterized by High Biologic Concentrations Demonstrates Better Prognosis in Crohn's Disease. J Crohns Colitis. 2023.06; 17 (6): 855-862. ( PubMed , DOI )

  8. Kento Takenaka, Yoshio Kitazume, Ami Kawamoto, Toshimitsu Fujii, Yumi Udagawa, Ryosuke Wanatabe, Hiromichi Shimizu, Shuji Hibiya, Masakazu Nagahori, Kazuo Ohtsuka, Hiroyuki Sato, Akihiro Hirakawa, Mamoru Watanabe, Ryuichi Okamoto: Serum Leucine-Rich α2 Glycoprotein: A Novel Biomarker for Transmural Inflammation in Crohn's Disease. Am J Gastroenterol. 2023.06; 118 (6): 1028-1035. ( PubMed , DOI )

  9. Hiroshi Nakase, Motohiro Esaki, Fumihito Hirai, Taku Kobayashi, Katsuyoshi Matsuoka, Minoru Matsuura, Makoto Naganuma, Masayuki Saruta, Kiichiro Tsuchiya, Motoi Uchino, Kenji Watanabe, Tadakazu Hisamatsu, : Treatment escalation and de-escalation decisions in Crohn's disease: Delphi consensus recommendations from Japan, 2021. J Gastroenterol. 2023.04; 58 (4): 313-345. ( PubMed , DOI )

  10. Fujiwara S, Kawamoto A, Motobayashi M, Hibiya S, Takenaka K, Shimizu H, Saito E, Fujii T, Nagahori M, Kawata D, Umezawa N, Hosoya T, Yasuda S, Ohtsuka K, Okamoto R: Hemorrhagic gastric ulcer in a patient with Behcet's disease successfully treated with infliximab. DEN open. 2023.04; 3 (1): e196. ( PubMed , DOI )

  11. Tsuchiya K, Nagahori M, Hanazawa R, Sasaki M, Sato H, Hirakawa A, Anzai T, Takahashi K, Kobayashi Y, Hibiya S, Takenaka K, Watanabe M: Serial daily recording of patient-reported outcomes (PRO2) might predict treatment change in the patients with Ulcerative Colitis. JOURNAL OF CROHNS & COLITIS. 2023.02; 17 (1): I316-I317.

  12. Saito E, Ohtsuka K, Kawamoto A, Fujii T, Takenaka K, Hibiya S, Shimizu H, Nagahori M, Tomii S, Okamoto R: A case of venous stasis colitis possibly caused by eplerenone. Clinical journal of gastroenterology. 2023.02; 16 (1): 69-72. ( PubMed , DOI )

  1. Katsuyoshi Matsuoka, Toshimitsu Fujii, Ryuichi Okamoto, Akihiro Yamada, Reiko Kunisaki, Minoru Matsuura, Kenji Watanabe, Hisashi Shiga, Noritaka Takatsu, Shigeki Bamba, Yohei Mikami, Takayuki Yamamoto, Takahiro Shimoyama, Satoshi Motoya, Takehiro Torisu, Taku Kobayashi, Naoki Ohmiya, Masayuki Saruta, Koichiro Matsuda, Takayuki Matsumoto, Hiroshi Nakase, Atsuo Maemoto, Shinichiro Shinzaki, Yoko Murata, Shinichi Yoshigoe, Ayako Sasaki, Tsutomu Yajima, Tadakazu Hisamatsu: Characteristics of adult patients newly diagnosed with Crohn's disease: interim analysis of the nation-wide inception cohort registry study of patients with Crohn's disease in Japan (iCREST-CD). J Gastroenterol. 2022.11; 57 (11): 867-878. ( PubMed , DOI )

  2. Ami Kawamoto, Kento Takenaka, Ryuichi Okamoto, Mamoru Watanabe, Kazuo Ohtsuka: Systematic review of artificial intelligence-based image diagnosis for inflammatory bowel disease. Dig Endosc. 2022.11; 34 (7): 1311-1319. ( PubMed , DOI )

  3. Ami Kawamoto, Toshimitsu Fujii, Ryuji Mitani, Yasuhiro Suzuki, Tsunehito Yauchi, Ryuichi Okamoto: Serum Levels of Infliximab Biosimilar in a Child Delivered From a Mother Treated for Ulcerative Colitis. Inflamm Bowel Dis. 2022.08; 28 (8): 1298-1299. ( PubMed , DOI )

  4. Shuji Hibiya, Kazuo Ohtsuka, Kento Takenaka, Ami Kawamoto, Yusuke Matsuyama, Yumi Udagawa, Maiko Motobayashi, Hiromichi Shimizu, Toshimitsu Fujii, Eiko Saito, Masakazu Nagahori, Ryuichi Okamoto, Mamoru Watanabe: Mucosal healing of small intestinal stricture is associated with improved prognosis post-dilation in Crohn's disease. BMC Gastroenterol. 2022.05; 22 (1): 218. ( PubMed , DOI )

  5. Kento Takenaka, Ami Kawamoto, Ryuichi Okamoto, Mamoru Watanabe, Kazuo Ohtsuka: Artificial intelligence for endoscopy in inflammatory bowel disease. Intest Res. 2022.04; 20 (2): 165-170. ( PubMed , DOI )

  6. Ryan W Stidham, Kento Takenaka: Artificial Intelligence for Disease Assessment in Inflammatory Bowel Disease: How Will it Change Our Practice? Gastroenterology. 2022.04; 162 (5): 1493-1506. ( PubMed , DOI )

  7. Kaoru Suzuki, Yoichi Kakuta, Takeo Naito, Tetsuya Takagawa, Hiroyuki Hanai, Hiroshi Araki, Yu Sasaki, Hirotake Sakuraba, Makoto Sasaki, Tadakazu Hisamatsu, Satoshi Motoya, Takayuki Matsumoto, Motoyuki Onodera, Yoh Ishiguro, Hiroshi Nakase, Akira Andoh, Sakiko Hiraoka, Masaru Shinozaki, Toshimitsu Fujii, Takehiko Katsurada, Taku Kobayashi, Mikihiro Fujiya, Takafumi Otsuka, Naoki Oshima, Yasuo Suzuki, Yuichirou Sato, Ryota Hokari, Mitsunori Noguchi, Yuki Ohta, Minoru Matsuura, Yosuke Kawai, Katsushi Tokunaga, Masao Nagasaki, Hisaaki Kudo, Naoko Minegishi, Daisuke Okamoto, Yusuke Shimoyama, Rintaro Moroi, Masatake Kuroha, Hisashi Shiga, Dalin Li, Dermot P B McGovern, Yoshitaka Kinouchi, Atsushi Masamune, : Genetic Background of Mesalamine-induced Fever and Diarrhea in Japanese Patients with Inflammatory Bowel Disease. Inflamm Bowel Dis. 2022.01; 28 (1): 21-31. ( PubMed , DOI )

  1. Hiromichi Shimizu, Toshimitsu Fujii, Kenji Kinoshita, Ami Kawamoto, Shuji Hibiya, Kento Takenaka, Eiko Saito, Masakazu Nagahori, Kazuo Ohtsuka, Mamoru Watanabe, Ryuichi Okamoto: Intravenous tacrolimus is a superior induction therapy for acute severe ulcerative colitis compared to oral tacrolimus. BMC Gastroenterol. 2021.12; 21 (1): 494. ( PubMed , DOI )

  2. Kento Takenaka, Toshimitsu Fujii, Ami Kawamoto, Kohei Suzuki, Hiromichi Shimizu, Chiaki Maeyashiki, Osamu Yamaji, Maiko Motobayashi, Akira Igarashi, Ryoichi Hanazawa, Shuji Hibiya, Masakazu Nagahori, Eiko Saito, Ryuichi Okamoto, Kazuo Ohtsuka, Mamoru Watanabe: Deep neural network for video colonoscopy of ulcerative colitis: a cross-sectional study. Lancet Gastroenterol Hepatol. 2021.11; ( PubMed , DOI )

  3. Kento Takenaka, Ami Kawamoto, Kazuo Ohtsuka: Editorial: higher concentrations of cytokine blockers are needed to obtain small bowel mucosal healing during maintenance therapy in Crohn's disease-authors' reply. Aliment Pharmacol Ther. 2021.10; 54 (8): 1087. ( PubMed , DOI )

  4. Takeo Yoshihara, Shinichiro Shinzaki, Takahiro Amano, Hideki Iijima, Tetsuo Takehara, Nagamu Inoue, Motoi Uchino, Motohiro Esaki, Taku Kobayashi, Masayuki Saruta, Ken Sugimoto, Shiro Nakamura, Keisuke Hata, Fumihito Hirai, Sakiko Hiraoka, Toshimitsu Fujii, Minoru Matsuura, Katsuyoshi Matsuoka, Kenji Watanabe, Hiroshi Nakase, Mamoru Watanabe: Concomitant use of an immunomodulator with ustekinumab as an induction therapy for Crohn's disease: A systematic review and meta-analysis. J Gastroenterol Hepatol. 2021.07; 36 (7): 1744-1753. ( PubMed , DOI )

  5. Takenaka K, Kawamoto A, Hibiya S, Suzuki K, Fujii T, Motobayashi M, Shimizu H, Nagahori M, Saito E, Okamoto R, Watanabe M, Ohtsuka K: Higher concentrations of cytokine blockers are needed to obtain small bowel mucosal healing during maintenance therapy in Crohn's disease. Alimentary pharmacology & therapeutics. 2021.07; 54 (8): 1052-1060. ( PubMed , DOI )

  6. Hiroshi Nakase, Motoi Uchino, Shinichiro Shinzaki, Minoru Matsuura, Katsuyoshi Matsuoka, Taku Kobayashi, Masayuki Saruta, Fumihito Hirai, Keisuke Hata, Sakiko Hiraoka, Motohiro Esaki, Ken Sugimoto, Toshimitsu Fuji, Kenji Watanabe, Shiro Nakamura, Nagamu Inoue, Toshiyuki Itoh, Makoto Naganuma, Tadakazu Hisamatsu, Mamoru Watanabe, Hiroto Miwa, Nobuyuki Enomoto, Tooru Shimosegawa, Kazuhiko Koike: Evidence-based clinical practice guidelines for inflammatory bowel disease 2020. J Gastroenterol. 2021.06; 56 (6): 489-526. ( PubMed , DOI )

  7. A Kawamoto, K Takenaka, S Hibiya, K Ohtsuka, R Okamoto, M Watanabe: Serum Leucine-Rich α 2 Glycoprotein: A Novel Biomarker For Small Bowel Mucosal Activity in Crohn's Disease Clin Gastroenterol Hepatol. 2021.06; ( PubMed , DOI )

  8. Kento Takenaka, Kazuo Ohtsuka, Toshimitsu Fujii, Shiori Oshima, Ryuichi Okamoto, Mamoru Watanabe: Deep Neural Network Accurately Predicts Prognosis of Ulcerative Colitis Using Endoscopic Images. Gastroenterology. 2021.05; 160 (6): 2175-2177.e3. ( PubMed , DOI )

  9. Motoi Uchino, Hiroki Ikeuchi, Keisuke Hata, Tomohiro Minagawa, Yuki Horio, Ryuichi Kuwahara, Shiro Nakamura, Kenji Watanabe, Masayuki Saruta, Toshimitsu Fujii, Taku Kobayashi, Ken Sugimoto, Fumihito Hirai, Motohiro Esaki, Sakiko Hiraoka, Katsuyoshi Matsuoka, Shinichiro Shinzaki, Minoru Matsuura, Nagamu Inoue, Hiroshi Nakase, Mamoru Watanabe: Does anti-tumor necrosis factor alpha prevent the recurrence of Crohn's disease? Systematic review and meta-analysis. J Gastroenterol Hepatol. 2021.04; 36 864-872. ( PubMed , DOI )

  10. Miyuki Kaneshiro, Kento Takenaka, Kohei Suzuki, Toshimitsu Fujii, Shuji Hibiya, Ami Kawamoto, Maiko Motobayashi, Hiromichi Shimizu, Masakazu Nagahori, Eiko Saito, Ryuichi Okamoto, Kazuo Ohtsuka, Mamoru Watanabe: Pancolonic endoscopic and histologic evaluation for relapse prediction in patients with ulcerative colitis in clinical remission. Aliment Pharmacol Ther. 2021.04; 53 (8): 900-907. ( PubMed , DOI )

  11. Motoi Uchino, Hiroki Ikeuchi, Keisuke Hata, Tomohiro Minagawa, Yuki Horio, Ryuichi Kuwahara, Shiro Nakamura, Kenji Watanabe, Masayuki Saruta, Toshimitsu Fujii, Taku Kobayashi, Ken Sugimoto, Fumihito Hirai, Motohiro Esaki, Sakiko Hiraoka, Katsuyoshi Matsuoka, Shinichiro Shinzaki, Minoru Matsuura, Nagamu Inoue, Hiroshi Nakase, Mamoru Watanabe: Intestinal cancer in patients with Crohn's disease: A systematic review and meta-analysis. J Gastroenterol Hepatol. 2021.02; 36 329-336. ( PubMed , DOI )

  12. Chikako Watanabe, Masakazu Nagahori, Toshimitsu Fujii, Kaoru Yokoyama, Naoki Yoshimura, Taku Kobayashi, Hirokazu Yamagami, Kazuya Kitamura, Kagaya Takashi, Shiro Nakamura, Makoto Naganuma, Shunji Ishihara, Motohiro Esaki, Maria Yonezawa, Reiko Kunisaki, Atsushi Sakuraba, Naoaki Kuji, Soichiro Miura, Toshifumi Hibi, Yasuo Suzuki, Ryota Hokari: Non-adherence to medications in pregnant ulcerative colitis patients contributes to disease flares and adverse pregnancy outcomes. Dig Dis Sci. 2021.02; 66 577-586. ( PubMed , DOI )

  13. Kitazume Yoshio, Takenaka Kento, Ohtsuka Kazuo, Kimura Koichiro, Ogihara Yusuke, Fujioka Tomoyuki, Tsuchiya Junichi, Fujii Toshimitsu, Watanabe Mamoru, Tateisi Ukihide: Crohn disease: magnetic resonance enterocolonography features of endoscopic ulcer stages reclassified with the healing process and the relationships to prognoses JAPANESE JOURNAL OF RADIOLOGY. 2021.01; 39 (5): 459-476. ( PubMed , DOI )

  14. Shuji Hibiya, Yusuke Matsuyama, Toshimitsu Fujii, Chiaki Maeyashiki, Eiko Saito, Kimiko Ito, Hiromichi Shimizu, Ami Kawamoto, Maiko Motobayashi, Kento Takenaka, Masakazu Nagahori, Masayuki Kurosaki, Tsunehito Yauchi, Kazuo Ohtsuka, Takeo Fujiwara, Ryuichi Okamoto, Mamoru Watanabe: 5-aminosalicylate-intolerant patients are at increased risk of colectomy for ulcerative colitis. Aliment Pharmacol Ther. 2021.01; 53 (1): 103-113. ( PubMed , DOI )

  15. Shuji Hibiya, Yusuke Matsuyama, Toshimitsu Fujii, Chiaki Maeyashiki, Eiko Saito, Kimiko Ito, Hiromichi Shimizu, Ami Kawamoto, Maiko Motobayashi, Kento Takenaka, Masakazu Nagahori, Masayuki Kurosaki, Tsunehito Yauchi, Kazuo Ohtsuka, Takeo Fujiwara, Ryuichi Okamoto, Mamoru Watanabe: 5-aminosalicylate-intolerant patients are at increased risk of colectomy for ulcerative colitis. Aliment Pharmacol Ther. 2021.01; 53 (1): 103-113. ( PubMed , DOI )

  1. Kento Takenaka, Kazuo Ohtsuka, Kohei Suzuki, Mamoru Watanabe: Reply to GASTRO-D- 20-00591 Gastroenterology. 2020.10; 159 (4): 1626-1627. ( PubMed , DOI )

  2. Yoshio Kitazume, Junichi Tsuchiya, Kento Takenaka, Kazuo Ohtsuka, Koichiro Kimura, Ryosuke Watanabe, Tomoyuki Fujioka, Toshimitsu Fujii, Mamoru Watanabe, Ukihide Tateisi: High b-value computed diffusion-weighted imaging for differentiating bowel inflammation in Crohn's disease. Eur J Radiol. 2020.10; 133 109362. ( PubMed , DOI )

  3. Hiromichi Shimizu, Toshimitsu Fujii, Shuji Hibiya, Maiko Motobayashi, Kohei Suzuki, Kento Takenaka, Eiko Saito, Masakazu Nagahori, Kazuo Ohtsuka, Mamoru Watanabe: Rapid prediction of 1-year efficacy of tofacitinib for treating refractory ulcerative colitis. Intest Res. 2020.06; Online ahead of print.. ( PubMed , DOI )

  4. Kento Takenaka, Yoshio Kitazume, Toshimitsu Fujii, Kiichiro Tsuchiya, Mamoru Watanabe, Kazuo Ohtsuka: Objective evaluation for treat to target in Crohn's disease. J. Gastroenterol. 2020.06; 55 (6): 579-587. ( PubMed , DOI )

  5. Kento Takenaka, Toshimitsu Fujii, Kohei Suzuki, Hiromichi Shimizu, Maiko Motobayashi, Shuji Hibiya, Eiko Saito, Masakazu Nagahori, Mamoru Watanabe, Kazuo Ohtsuka: Small bowel healing detected by endoscopy in patients with Crohn's disease after treatment with antibodies against tumor necrosis factor. Clin Gastroenterol Hepatol. 2020.06; 18 (7): 1545-1552. ( PubMed , DOI )

  6. Shigeki Bamba, Ryosuke Sakemi, Toshimitsu Fujii, Teruyuki Takeda, Shin Fujioka, Kento Takenaka, Hiroki Kitamoto, Shotaro Umezawa, Hirotake Sakuraba, Toshihiro Inokuchi, Norimasa Fukata, Shinta Mizuno, Masaki Yamashita, Shinichiro Shinzaki, Hiroki Tanaka, Hidetoshi Takedatsu, Ryo Ozaki, Kei Moriya, Manabu Ishii, Tetsu Kinjo, Keiji Ozeki, Makoto Ooi, Ryohei Hayashi, Kazuki Kakimoto, Yuichi Shimodate, Kazuya Kitamura, Akihiro Yamada, Akira Sonoda, Yu Nishida, Kyouko Yoshioka, Shinya Ashizuka, Fumiaki Takahashi, Toshio Shimokawa, Taku Kobayashi, Akira Andoh, Toshifumi Hibi: A nationwide, multi-center, retrospective study of symptomatic small bowel stricture in patients with Crohn's disease. J Gastroenterol. 2020.06; 55 (6): 615-626. ( PubMed , DOI )

  7. Kento Takenaka, Yoshio Kitazume, Toshimitsu Fujii, Kiichiro Tsuchiya, Mamoru Watanabe, Kazuo Ohtsuka: Objective evaluation for treat to target in Crohn’s disease. J Gastroenterol. 2020.03; 55 (3): 579-587.

  8. Kento Takenaka, Kazuo Ohtsuka, Toshimitsu Fujii, Mariko Negi, Kohei Suzuki, Hiromichi Shimizu, Shiori Oshima, Shintaro Akiyama, Maiko Motobayashi, Masakazu Nagahori, Eiko Saito, Katsuyoshi Matsuoka, Mamoru Watanabe: Development and Validation of a Deep Neural Network for Accurate Evaluation of Endoscopic Images From Patients With Ulcerative Colitis. Gastroenterology. 2020.02; ( PubMed , DOI )

  1. Kento Takenaka, Maiko Kimura, Kazuo Ohtsuka: Colonic strictures mimicking Crohn's disease. Gut. 2019.11; Online ahead of print.. ( PubMed , DOI )

  2. Maiko Motobayashi, Katsuyoshi Matsuoka, Kento Takenaka, Toshimitsu Fujii, Masakazu Nagahori, Kazuo Ohtsuka, Fumihiko Iwamoto, Kiichiro Tsuchiya, Mariko Negi, Yoshinobu Eishi, Mamoru Watanabe: Predictors of mucosal healing during induction therapy in patients with acute moderate-to-severe ulcerative colitis. J. Gastroenterol. Hepatol.. 2019.06; 34 (6): 1004-1010. ( PubMed , DOI )

  3. Shintaro Akiyama, Katsuyoshi Matsuoka, Kyoko Fukuda, Shunsuke Hamada, Mikiko Shimizu, Kosaku Nanki, Shinta Mizuno, Hiroki Kiyohara, Mari Arai, Shinya Sugimoto, Yasushi Iwao, Haruhiko Ogata, Tadakazu Hisamatsu, Makoto Naganuma, Maiko Motobayashi, Kohei Suzuki, Kento Takenaka, Toshimitsu Fujii, Eiko Saito, Masakazu Nagahori, Kazuo Ohtsuka, Mayumi Mochizuki, Mamoru Watanabe, Masayuki Hashiguchi, Takanori Kanai: Long-term effect of NUDT15 R139C on hematologic indices in inflammatory bowel disease patients treated with thiopurine. J. Gastroenterol. Hepatol.. 2019.05; ( PubMed , DOI )

  4. Atsushi Yoshida, Noriko Kamata, Akihiro Yamada, Yoko Yokoyama, Teppei Omori, Toshimitsu Fujii, Ryohei Hayashi, Tetsu Kinjo, Akira Matsui, Norimasa Fukata, Sakuma Takahashi, Ryosuke Sakemi, Noriyuki Ogata, Shinya Ashizuka, Shigeki Bamba, Makoto Ooi, Shuji Kanmura, Katsuya Endo, Takuya Yoshino, Hiroki Tanaka, Toshio Morizane, Shinichiro Shinzaki, Taku Kobayashi: Pneumonia in patients with inflammatory bowel disease. Inflamm Intest Dis. 2019.04; 3 (4): 167-172. ( PubMed , DOI )

  5. Kaho Yamasaki, Kento Takenaka, Kazuo Ohtsuka: Laterally spreading tumor-like early cancer in ileum. Intern Med. 2019.03; 58 (6): 885-886. ( PubMed , DOI )

  6. Yoshio Kitazume, Tomoyuki Fujioka, Kento Takenaka, Jun Oyama, Kazuo Ohtsuka, Toshimitsu Fujii, Ukihide Tateisi: Crohn Disease: A 5-point MR enterocolonography classification using enteroscopic findings. Am J Roentgenol. 2019.01; 212 (1): 67-76. ( PubMed , DOI )

  1. Shinichiro Shinzaki, Toshimitsu Fujii, Shigeki Bamba, Maiko Ogawa, Taku Kobayashi, Masahide Oshita, Hiroki Tanaka, Keiji Ozeki, Sakuma Takahashi, Hiroki Kitamoto, Kazuhito Kani, Sohachi Nanjo, Takeshi Sugaya, Yuko Sakakibara, Toshihiro Inokuchi, Kazuki Kakimoto, Akihiro Yamada, Hisae Yasuhara, Yoko Yokoyama, Takuya Yoshino, Akira Matsui, Misaki Nakamura, Taku Tomizawa, Ryosuke Sakemi, Noriko Kamata, Toshifumi Hibi: Seven days triple therapy for eradication of Helicobacter pylori does not alter the disease activity of patients with inflammatory bowel disease. Intest Res. 2018.10; 16 (4): 609-618. ( PubMed , DOI )

  2. Kohei Suzuki, Tatsuro Murano, Hiromichi Shimizu, Go Ito, Toru Nakata, Satoru Fujii, Fumiaki Ishibashi, Ami Kawamoto, Sho Anzai, Reiko Kuno, Konomi Kuwabara, Junichi Takahashi, Minami Hama, Sayaka Nagata, Yui Hiraguri, Kento Takenaka, Shiro Yui, Kiichiro Tsuchiya, Tetsuya Nakamura, Kazuo Ohtsuka, Mamoru Watanabe, Ryuichi Okamoto: Single cell analysis of Crohn's disease patient-derived small intestinal organoids reveals disease activity-dependent modification of stem cell properties. J. Gastroenterol.. 2018.09; 53 (9): 1035-1047. ( PubMed , DOI )

  3. Fumihiko Iwamoto, Katsuyoshi Matsuoka, Maiko Motobayashi, Kento Takenaka, Toru Kuno, Keisuke Tanaka, Yuya Tsukui, Shoji Kobayashi, Takashi Yoshida, Toshimitsu Fujii, Eiko Saito, Tatsuya Yamaguchi, Masakazu Nagahori, Tadashi Sato, Kazuo Ohtsuka, Nobuyuki Enomoto, Mamoru Watanabe: Prediction of disease activity of Crohn's disease through fecal calprotectin evaluated by balloon-assisted endoscopy. J. Gastroenterol. Hepatol.. 2018.06; ( PubMed , DOI )

  4. Shintaro Akiyama, Masakazu Nagahori, Shinya Oooka, Mariko Negi, Takashi Ito, Kento Takenaka, Kazuo Ohtsuka, Mamoru Watanabe: Small intestinal obstruction due to the metastasis of intrahepatic cholangiocarcinoma: A case report. Medicine (Baltimore). 2018.03; 97 (12): e0190. ( PubMed , DOI )

  5. Kento Takenaka, Kazuo Ohtsuka, Yoshio Kitazume, Katsuyoshi Matsuoka, Masakazu Nagahori, Toshimitsu Fujii, Eiko Saito, Maiko Kimura, Tomoyuki Fujioka, Mamoru Watanabe: Utility of Magnetic Resonance Enterography For Small Bowel Endoscopic Healing in Patients With Crohn's Disease Am. J. Gastroenterol. 2018.02; 113 (2): 283-294. ( PubMed , DOI )

  1. Taku Kobayashi, Asahi Hishida, Hiroki Tanaka, Yoichiro Nuki, Shigeki Bamba, Akihiro Yamada, Toshimitsu Fujii, Shinichiro Shinzaki, Yoko Yokoyama, Atsushi Yoshida, Keiji Ozeki, Shinya Ashizuka, Noriko Kamata, Sohachi Nanjo, Kazuki Kakimoto, Misaki Nakamura, Akira Matsui, Ryosuke Yamauchi, Sakuma Takahashi, Taku Tomizawa, Takuya Yoshino, Toshifumi Hibi: Real-world Experience of Anti-tumor Necrosis Factor Therapy for Internal Fistulas in Crohn's Disease: A Retrospective Multicenter Cohort Study. Inflamm. Bowel Dis.. 2017.12; 23 (12): 2245-2251. ( PubMed , DOI )

  2. Kento Takenaka, Kazuo Ohtsuka, Yoshio Kitazume, Katsuyoshi Matsuoka, Toshimitsu Fujii, Masakazu Nagahori, Maiko Kimura, Tomoyuki Fujioka, Akihiro Araki, Mamoru Watanabe: Magnetic resonance evaluation for small bowel strictures in Crohn's disease: comparison with balloon enteroscopy. J. Gastroenterol.. 2017.08; 52 (8): 879-888. ( PubMed , DOI )

  3. Shintaro Akiyama, Toshimitsu Fujii, Katsuyoshi Matsuoka, Ebana Yusuke, Mariko Negi, Kento Takenaka, Masakazu Nagahori, Kazuo Ohtsuka, Mitsuaki Isobe, Mamoru Watanabe: Endoscopic features and genetic background of inflammatory bowel disease complicated with Takayasu arteritis. J. Gastroenterol. Hepatol.. 2017.05; 32 (5): 1011-1017. ( PubMed , DOI )

  4. Endo Y., Ohtsuka K., Yoshida A., Ueno F., Takenaka K., Watanabe M.: A novel small-caliber deep enteroscope can overcome technical difficulty of insertion in patients with Crohn's disease JOURNAL OF CROHNS & COLITIS. 2017.02; 11 S164-S165.

  1. Kazuo Ohtsuka, Kento Takenaka, Yoshio Kitazume, Toshimitsu Fujii, Katsuyoshi Matsuoka, Maiko Kimura, Takashi Nagaishi, Mamoru Watanabe: Magnetic resonance enterography for the evaluation of the deep small intestine in Crohn's disease. Intest Res. 2016.04; 14 (2): 120-126. ( PubMed , DOI )

  1. Kento Takenaka, Kazuo Ohtsuka, Yoshio Kitazume, Masakazu Nagahori, Toshimitsu Fujii, Eiko Saito, Tomoyuki Fujioka, Katsuyoshi Matsuoka, Makoto Naganuma, Mamoru Watanabe: Correlation of the Endoscopic and Magnetic Resonance Scoring Systems in the Deep Small Intestine in Crohn's Disease. Inflamm. Bowel Dis.. 2015.08; 21 (8): 1832-1838. ( PubMed , DOI )

  1. Kento Takenaka, Kazuo Ohtsuka, Yoshio Kitazume, Masakazu Nagahori, Toshimitsu Fujii, Eiko Saito, Makoto Naganuma, Akihiro Araki, Mamoru Watanabe: Comparison of magnetic resonance and balloon enteroscopic examination of the small intestine in patients with Crohn's disease. Gastroenterology. 2014.08; 147 (2): 334-342.e3. ( PubMed )

  2. Eiko Saito, Masakazu Nagahori, Toshimitsu Fujii, Kazuo Ohtsuka, Mamoru Watanabe: Efficacy of salvage therapy and its effect on operative outcomes in patients with ulcerative colitis. Digestion. 2014.01; 89 (1): 55-60. ( PubMed , DOI )

  3. Toshimitsu Fujii, Makoto Naganuma, Yoshio Kitazume, Eiko Saito, Masakazu Nagahori, Kazuo Ohtsuka, Mamoru Watanabe: Advancing magnetic resonance imaging in Crohn's disease. Digestion. 2014.01; 89 (1): 24-30. ( PubMed , DOI )

  1. Masakazu Nagahori, Toshimitsu Fujii, Eiko Saito, Kazuo Ohtsuka, Mamoru Watanabe: Biologics treatment for ulcerative colitis. Nihon Shokakibyo Gakkai Zasshi. 2013.11; 110 (11): 1909-1915. ( PubMed )

  2. Makoto Naganuma, Toshimitsu Fujii, Reiko Kunisaki, Naoki Yoshimura, Masakazu Takazoe, Yoshiaki Takeuchi, Eiko Saito, Masakazu Nagahori, Keiko Asakura, Toru Takebayashi, Mamoru Watanabe: Incidence and characteristics of the 2009 influenza (H1N1) infections in inflammatory bowel disease patients. J Crohns Colitis. 2013.05; 7 (4): 308-313. ( PubMed , DOI )

  3. Makoto Naganuma, Masakazu Nagahori, Toshimitsu Fujii, Junko Morio, Eiko Saito, Mamoru Watanabe: Poor recall of prior exposure to varicella zoster, rubella, measles, or mumps in patients with IBD. Inflamm. Bowel Dis.. 2013.02; 19 (2): 418-422. ( PubMed , DOI )

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