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Dive into the research topics where Yasuyuki Nonaka is active.

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Featured researches published by Yasuyuki Nonaka.


Jpn J Gastroenterol Surg, Nihon Shokaki Geka Gakkai zasshi | 1992

A Clinicopathological Study of Multiple Colorectal Cancers.

Toshikazu Kimura; Hiromi Iwagaki; Sadanori Fuchimoto; Yasuyuki Nonaka; Masashi Nezu; Akio Hizuta; Kunzo Orita

当科における大腸多発癌は358例中24例, 6.7%であった.男女比は16: 8で対照群と有意差なく, 発病年齢は56.8歳で, 対照群より4.4歳若かった.同時性多発癌では23病変中16病変, 70.0%が第1癌腫の10cm以内に存在し, 10cm以上離れた病変は進行癌が多かった.進行癌-早期癌の組合せが最多であったが, 異時性では後発癌は全例進行癌であった.多発癌群では癌家族歴, 他臓器重複癌の併存が高率の傾向があり, ポリープ併存率は83.3%で対照群より有意に高率であった.同時性症例で術前正診できたのは77.8%であり, 正診不可能であったのは肛門側の癌腫のため, その口側の検索が不十分であったものがほとんどであった.現在のところ, 大腸多発癌の予測は困難であり, 大腸癌を診断した場合は多発癌および他臓器重複癌を念頭に置き, 他臓器も含めた十分な術前検査および術後の経過観察が必要であると考えられた.


International Journal of Cancer | 1993

Effect of reactive oxygen intermediates on the in vitro invasive capacity of tumor cells and liver metastasis in mice

Yasuyuki Nonaka; Hiromi Iwagaki; Toshikazu Kimura; Sadanori Fuchimoto; Kunzo Orita


Archives of Histology and Cytology | 1992

The blood vascular bed of the human pancreas, with special reference to the insulo-acinar portal system. Scanning electron microscopy of corrosion casts.

Takuro Murakami; Tsuneo Fujita; Takehito Taguchi; Yasuyuki Nonaka; Kunzo Orita


Cancer Chemotherapy and Pharmacology | 2013

Multicenter phase II study of S-1 and docetaxel combination chemotherapy for advanced or recurrent gastric cancer patients with peritoneal dissemination

Kunitoshi Shigeyasu; Shunsuke Kagawa; Futoshi Uno; Masahiko Nishizaki; Hiroyuki Kishimoto; Akira Gochi; Toshikazu Kimura; Takaomi Takahata; Yasuyuki Nonaka; Motoki Ninomiya; Toshiyoshi Fujiwara


Acta Medica Okayama | 1994

Ovarian Metastasis in Patients with Colorectal Carcinoma

Jose Antonio Perdomo; Akio Hizuta; Hiromi Iwagaki; Shinji Takasu; Yasuyuki Nonaka; Toshikazu Kimura; Shigemi Takada; Luis Fernando Moreira; Noriaki Tanaka; Kunzo Orita


Nippon Daicho Komonbyo Gakkai Zasshi | 1991

The Influence of Lactosucrose(LS-98)on the Intestinal Microflora of Patients with Resected Colon

Hiromi Iwagaki; Sadanori Fuchimoto; Nagahide Matsubara; Yoshihiro Akazai; Kiichi Suzaki; Tetsuya Watanabe; Yasuyuki Nonaka; S. Kimura; Kunzo Orita; M. Yoneyama; T. Mandai; H. Aga; K. Fujii; S. Sakai


Nippon Daicho Komonbyo Gakkai Zasshi | 1993

The Effects of Oral Lactosucrose Administration on the Intestinal Microflora of A Patient Undergoing Total Colectomy for Familial Polyposis Coli

Hiromi Iwagaki; Akio Hizuta; S. Kimura; Yasuyuki Nonaka; Masashi Nezu; Masahito Marutaka; Sadanori Fuchimoto; Kunzo Orita; M. Yoneyama; S. Sakai


Acta Medica Okayama | 1993

Occlusion of a postoperative rectoabdominocutaneous fistula with fibrin clot: a case report.

Hiromi Iwagaki; Akio Hizuta; Masashi Nezu; Yasuyuki Nonaka; Toshikazu Kimura; Masahito Marutaka; Muneaki Kuroda; Noriaki Tanaka; Kunzo Orita


Journal of Hospital Infection | 2013

Multicentred surgical site infection surveillance using partitioning analysis

Yasuhiro Fujiwara; Takako Yamada; Yoshio Naomoto; Tomoki Yamatsuji; Yasuhiro Shirakawa; Shunsuke Tanabe; Kazuhiro Noma; Toshikazu Kimura; Hideki Aoki; H. Matsukawa; M. Kimura; Yasuyuki Nonaka; H. Sasaki; T. Onoda; Y. Otawa; Munenori Takaoka; Takuya Fukazawa; Y. Ohno; Toshiyoshi Fujiwara


Jpn J Gastroenterol Surg, Nihon Shokaki Geka Gakkai zasshi | 1992

Changes in Intestinal Microflora after Total Colectomy.

Hiromi Iwagaki; Akio Hizuta; Toshikazu Kimura; Yasuyuki Nonaka; Sadanori Fuchimoto; Kunzo Orita

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