Susumu Yamagata
University of Tsukuba
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Publication
Featured researches published by Susumu Yamagata.
Digestive Diseases and Sciences | 1994
Hirofumi Matsui; Susumu Yamagata; Ken-ichi Hirano; Mitsuru Ishikawa; Hisayuki Fukutomi; Toshiaki Osuga
In an attempt to clarify whether gastric mucosal autofluorescence can help us to recognize gastric lesions at the onset of their formation, we investigated the fluorescence generated from the gastric mucosa of rats under ischemia-reperfusion stress. Redcolored fluorescence appeared and began to increase within 5 min after reperfusion. Such an increase in fluorescence did not occur in the gastric mucosa under prolonged ischemia without reperfusion. The epifluorescence microscopy of mucosal cryosections revealed that fluorescence was present even when only superficial mucosal damage occurred. Spectrofluorometric and high-performance liquid chromatographic analysis of the fluorescent mucosa extract identified the fluorescent substances as porphyrins. These findings suggested that fluorescent porphyrins are generated in the mucosal layer during the introductory phase of mucosal lesion formation induced by ischemia-reperfusion stress.
GANN Japanese Journal of Cancer Research | 1980
Shohei Koyama; Takayuki Yoshioka; Atsushi Mizushima; Isao Kawakita; Susumu Yamagata; Hisayuki Fukutomi; Takao Sakita; Ikuko Kondo; Masanori Kikuchi
Acta Gastro-Enterologica Belgica | 1990
Soichi Hotta; Hiromasa Kashimura; Yoko Saito; Tsuguo Ebihara; Akira Nakahara; Susumu Yamagata; Syohei Koyama; Hiroshi Muto; Hisayuki Fukutomi; Toshiaki Osuga; Shinichi Ban; Kyoichi Nakamura
THE JOURNAL OF JAPAN SOCIETY FOR LASER SURGERY AND MEDICINE | 1982
Hiromasa Kashimura; Hisayuki Fukutomi; Isao Kawakita; Shouki Sai; Hiroaki Kumagaya; Akira Nakahara; Susumu Yamagata; Syohei Koyama; Keiji Mitamura; H. Muiph; Takao Sakita
Acta Gastro-Enterologica Belgica | 1995
Kazuto Ikezawa; Hiromasa Kashimura; Yasushi Miyo; Akira Nakahara; Susumu Yamagata; Yasushi Matsuzaki; Hiroshi Muto; Hisayuki Fukutomi; Toshiaki Osuga; Kazuo Orii; Takashi Fukao; Masanori Kikuchi
Acta Gastro-Enterologica Belgica | 1989
Sohichi Hotta; Shuya Shimakura; Takayuki Hiranuma; Kensuke Tsushima; Yoshimasa Matsumoto; Chiaki Sugano; Shinji Hirai; Takashi Yamaguchi; Hiromasa Kashimura; Akira Nakahara; Susumu Yamagata; Syohei Koyama; Hiroshi Muto; Hisayuki Fukutomi; Toshiaki Ohsuga
The Japanese journal of gastro-enterology | 1987
Takayuki Hiranuma; Shouhei Koyama; Akira Nakahara; Naomi Tanaka; Susumu Yamagata; Hiroshi Mutou; Hisayuki Fukutomi; Toshiaki Ohsuga; Masanori Kikuchi
Acta Gastro-Enterologica Belgica | 1986
Tsugio Ebihara; Akira Nakahara; Yoshimasa Matsumoto; Shinji Hirai; Hiromasa Kashimura; Susumu Yamagata; Shohei Koyama; Keiji Mitamura; Hiroshi Muto; Hisayuki Fukutomi; Toshiaki Ohsuga
Acta Gastro-Enterologica Belgica | 1984
Cheng-Hsi Tsai; Isao Kawakita; Hisayuki Fukutomi; Hiroaki Kumagae; Hiromasa Kasimura; Akira Nakahara; Shohei Koyama; Susumu Yamagata; Hiroshi Mutoh; Toshiaki Ohsuga; Takao Sakita
Acta Gastro-Enterologica Belgica | 1983
Shohei Koyama; Shoki Sai; Akinori Yanaka; Nobutaka Takano; Junko Togo; Akira Nakahara; Isao Kawakita; Hiromi Shibata; Susumu Yamagata; Hiroshi Muto; Hisayuki Fukutomi; Toshiaki Osuga; Takao Sakita; Toru Takeshima
