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Keiji Wakabayashi

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Tatsuya Kato; Masanobu Kawanishi; Shuichi Masuda; Tomonari Matsuda; Yoko Matsumoto; Dai Nakae; Sayaka Ogo; Yukie Tada; Yukari Totsuka; Sumio Goto; Kousuke Ishino; Masatoshi Watanabe; Takashi Yagi; Keiji Wakabayashi
Genotoxicity of multi-walled carbon nanotubes in both in vitro and in vivo assay systems.
Toshio Kuroki; Keiji Wakabayashi
100 Years of cancer research in Japan.
Azusa Takahashi-Nakaguchi; Yukari Totsuka; Kikuo Iwabuchi; Yasuko Matsumoto; Takashi Sugimura; Masafumi Yamamoto; Keiji Wakabayashi
Demonstration of Cytotoxicity against Wasps by Pierisin-1: A Possible Defense Factor in the Cabbage White Butterfly.

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All Publications

2013: Tatsuya Kato; Masanobu Kawanishi; Shuichi Masuda; Tomonari Matsuda; Yoko Matsumoto; Dai Nakae; Sayaka Ogo; Yukie Tada; Yukari Totsuka; Sumio Goto; Kousuke Ishino; Masatoshi Watanabe; Takashi Yagi; Keiji Wakabayashi
Genotoxicity of multi-walled carbon nanotubes in both in vitro and in vivo assay systems.
Nanotoxicology 2013;7():452-61.
2013: Toshio Kuroki; Keiji Wakabayashi
100 Years of cancer research in Japan.
International journal of cancer. Journal international du cancer 2013;132(6):1235-9.
2013: Azusa Takahashi-Nakaguchi; Yukari Totsuka; Kikuo Iwabuchi; Yasuko Matsumoto; Takashi Sugimura; Masafumi Yamamoto; Keiji Wakabayashi
Demonstration of Cytotoxicity against Wasps by Pierisin-1: A Possible Defense Factor in the Cabbage White Butterfly.
PloS one 2013;8(4):e60539.
2012: Toshiya Ueno; Keiji Wakabayashi; Akinori Yanaka; Mitsuyoshi Yoshimoto; Takuya Hayakawa; Toshio Imai; Katsumi Imaida; Masami Komiya; Mami Takahashi; Koji Tsuta; Michihiro Mutoh
Non-invasive X-ray micro-computed tomographic evaluation of indomethacin on urethane-induced lung carcinogenesis in mice.
Anticancer research 2012;32(11):4773-80.
2012: Mitsuyoshi Yoshimoto; Hirofumi Fujii; Takuya Hayakawa; Toshio Imai; Sadaaki Kimura; Michihiro Mutoh; Keisuke Tsuda; Izumi O Umeda; Keiji Wakabayashi
In vivo SPECT imaging with 111In-DOTA-c(RGDfK) to detect early pancreatic cancer in a hamster pancreatic carcinogenesis model.
Journal of nuclear medicine : official publication, Society of Nuclear Medicine 2012;53(5):765-71.
2012: Toshiya Ueno; Keiji Wakabayashi; Masafumi Yamamoto; Akinori Yanaka; Katsuya Nakano; Mami Takahashi; Shinji Takasu; Naoya Teraoka; Gen Fujii; Masami Komiya; Michihiro Mutoh
Suppressive effect of pioglitazone, a PPAR gamma ligand, on azoxymethane-induced colon aberrant crypt foci in KK-Ay mice.
Asian Pacific journal of cancer prevention : APJCP 2012;13(8):4067-73.
2011: Masafumi Yamamoto; Masahiko Watanabe; Shigeo Imanishi; Yuko Matsushima-Hibiya; Jun Mitsuhashi; Hitoshi Nakagama; Tsuyoshi Nakano; Takashi Sugimura; Azusa Takahashi-Nakaguchi; Yukari Totsuka; Keiji Wakabayashi
Nucleotide sequence and chromosomal localization of the gene for pierisin-1, a DNA ADP-ribosylating protein, in the cabbage butterfly Pieris rapae.
Genetica 2011;139(10):1251-8.
2011: Naoya Teraoka; Michihiro Mutoh; Shinji Takasu; Toshiya Ueno; Katsuya Nakano; Mami Takahashi; Toshio Imai; Shuichi Masuda; Takashi Sugimura; Keiji Wakabayashi
High susceptibility to azoxymethane-induced colorectal carcinogenesis in obese KK-Ay mice.
International journal of cancer. Journal international du cancer 2011;129(3):528-35.
2011: Noriyuki Miyoshi; Tomoki Nagasawa; Ryota Mabuchi; Yumiko Yasui; Keiji Wakabayashi; Takuji Tanaka; Hiroshi Ohshima
Chemoprevention of azoxymethane/dextran sodium sulfate-induced mouse colon carcinogenesis by freeze-dried yam sanyaku and its constituent diosgenin.
Cancer prevention research (Philadelphia, Pa.) 2011;4(6):924-34.
2011: Michihiro Mutoh; Naoya Teraoka; Shinji Takasu; Mami Takahashi; Kunishige Onuma; Masafumi Yamamoto; Naoto Kubota; Takamoto Iseki; Takashi Kadowaki; Takashi Sugimura; Keiji Wakabayashi
Loss of adiponectin promotes intestinal carcinogenesis in Min and wild-type mice.
Gastroenterology 2011;140(7):2000-8, 2008.e1-2.
2011: Naoya Teraoka; Michihiro Mutoh; Shinji Takasu; Toshiya Ueno; Masafumi Yamamoto; Takashi Sugimura; Keiji Wakabayashi
Inhibition of intestinal polyp formation by pitavastatin, a HMG-CoA reductase inhibitor.
Cancer prevention research (Philadelphia, Pa.) 2011;4(3):445-53.
2011: Kazutaka Ikeda; Michihiro Mutoh; Naoya Teraoka; Hiroki Nakanishi; Keiji Wakabayashi; Ryo Taguchi
Increase of oxidant-related triglycerides and phosphatidylcholines in serum and small intestinal mucosa during development of intestinal polyp formation in Min mice.
Cancer science 2011;102(1):79-87.
2009: Michihiro Mutoh; Masami Komiya; Naoya Teraoka; Toshiya Ueno; Mami Takahashi; Tsukasa Kitahashi; Takashi Sugimura; Keiji Wakabayashi
Overexpression of low-density lipoprotein receptor and lipid accumulation in intestinal polyps in Min mice.
International journal of cancer. Journal international du cancer 2009;125(11):2505-10.
2009: Masafumi Yamamoto; Tsuyoshi Nakano; Yuko Matsushima-Hibiya; Yukari Totsuka; Azusa Takahashi-Nakaguchi; Yasuko Matsumoto; Takashi Sugimura; Keiji Wakabayashi
Molecular cloning of apoptosis-inducing Pierisin-like proteins, from two species of white butterfly, Pieris melete and Aporia crataegi.
Comparative biochemistry and physiology. Part B, Biochemistry & molecular biology 2009;154(3):326-33.
2009: Rena Nishigaki; Tetsushi Watanabe; Tetsuya Kajimoto; A Tada; Takeji Takamura-Enya; Shigeki Enomoto; Haruo Nukaya; Yoshiyasu Terao; Atsushi Muroyama; Minoru Ozeki; Manabu Node; Tomohiro Hasei; Yukari Totsuka; Keiji Wakabayashi
Isolation and identification of a novel aromatic amine mutagen produced by the Maillard reaction.
Chemical research in toxicology 2009;22(9):1588-93.
2009: Nobuo Takasuka; Mami Takahashi; Yusaku Hori; Tsukasa Kitahashi; Masaaki Iigo; Toshio Imai; Naoki Yoshimi; Takashi Sugimura; Keiji Wakabayashi
Promotion of mouse two-stage skin carcinogenesis by diacylglycerol-rich edible oil.
Cancer letters 2009;275(1):150-7.
2009: Yukari Totsuka; Takashi Higuchi; Toshio Imai; Akiyoshi Nishikawa; Takehiko Nohmi; Tatsuya Kato; Shuich Masuda; Naohide Kinae; Kyoko Hiyoshi; Sayaka Ogo; Masanobu Kawanishi; Takashi Yagi; Takamichi Ichinose; Nobutaka Fukumori; Masatoshi Watanabe; Takashi Sugimura; Keiji Wakabayashi
Genotoxicity of nano/microparticles in in vitro micronuclei, in vivo comet and mutation assay systems.
Particle and fibre toxicology 2009;6():23.
2008: Yuya Deguchi; Nan Xiang Wu; Tomoyasu Toyoizumi; Shuichi Masuda; Hiroaki Nagaoka; Tetsushi Watanabe; Yukari Totsuka; Keiji Wakabayashi; Naohide Kinae
Application of a new bioassay technique using goldfish for assessment of water toxicity.
Environmental toxicology 2008;23(6):720-7.
2008: Yusaku Hori; Nobuo Takasuka; Michihiro Mutoh; Tsukasa Kitahashi; Shuji Kojima; Katsumi Imaida; Masahiro Suzuki; Kazushi Kohara; Shuji Yamamoto; Noriyuki Moriyama; Takashi Sugimura; Keiji Wakabayashi
Periodic analysis of urethane-induced pulmonary tumors in living A/J mice by respiration-gated X-ray microcomputed tomography.
Cancer science 2008;99(9):1774-7.
2008: Masaru Terasaki; Yukari Totsuka; Koichi Nishimura; Ken-ichi Mukaisho; Kuan-Hao Chen; Takanori Hattori; Takeji Takamura-Enya; Takashi Sugimura; Keiji Wakabayashi
Detection of endogenous DNA adducts, O-carboxymethyl-2'-deoxyguanosine and 3-ethanesulfonic acid-2'-deoxycytidine, in the rat stomach after duodenal reflux.
Cancer science 2008;99(9):1741-6.
2008: Mami Takahashi; Tsukasa Kitahashi; Rikako Ishigamori; Michihiro Mutoh; Masami Komiya; Hidetaka Sato; Yoshihisa Kamanaka; Masao Naka; Takayuki Maruyama; Takashi Sugimura; Keiji Wakabayashi
Increased expression of inducible nitric oxide synthase (iNOS) in N-nitrosobis(2-oxopropyl)amine-induced hamster pancreatic carcinogenesis and prevention of cancer development by ONO-1714, an iNOS inhibitor.
Carcinogenesis 2008;29(8):1608-13.
2008: Michihiro Mutoh; Naoko Niho; Masami Komiya; Mami Takahashi; Rina Ohtsubo; Kiyoshi Nakatogawa; Kentaro Ueda; Takashi Sugimura; Keiji Wakabayashi
Plasminogen activator inhibitor-1 (Pai-1) blockers suppress intestinal polyp formation in Min mice.
Carcinogenesis 2008;29(4):824-9.
2008: Yasuko Matsumoto; Tsuyoshi Nakano; Masafumi Yamamoto; Yuko Matsushima-Hibiya; Ken-Ichi Odagiri; Osamu Yata; Kotaro Koyama; Takashi Sugimura; Keiji Wakabayashi
Distribution of cytotoxic and DNA ADP-ribosylating activity in crude extracts from butterflies among the family Pieridae.
Proceedings of the National Academy of Sciences of the United States of America 2008;105(7):2516-20.
2008: Tsukasa Kitahashi; Mami Takahashi; Yutaka Yamada; Yoichi Oghiso; Masanao Yokohira; Katsumi Imaida; Masahiro Tsutsumi; Nobuo Takasuka; Takashi Sugimura; Keiji Wakabayashi
Occurrence of mutations in the epidermal growth factor receptor gene in X-ray-induced rat lung tumors.
Cancer science 2008;99(2):241-5.
2008: Tetsushi Watanabe; Kazuhiko Takahashi; Erina Konishi; Yuri Hoshino; Tomohiro Hasei; Masaharu Asanoma; Teruhisa Hirayama; Keiji Wakabayashi
Mutagenicity of surface soil from residential areas in Kyoto city, Japan, and identification of major mutagens.
Mutation research 2008;649(1-2):201-12.
2007: Hiroyuki Kohno; Yukari Totsuka; Yumiko Yasui; Rikako Suzuki; Shigeyuki Sugie; Keiji Wakabayashi; Takuji Tanaka
Tumor-initiating potency of a novel heterocyclic amine, aminophenylnorharman in mouse colonic carcinogenesis model.
International journal of cancer. Journal international du cancer 2007;121(8):1659-64.
2007: Naoko Niho; Michihiro Mutoh; Masami Komiya; Tsutomu Ohta; Takashi Sugimura; Keiji Wakabayashi
Improvement of hyperlipidemia by indomethacin in Min mice.
International journal of cancer. Journal international du cancer 2007;121(8):1665-9.
2007: Katsuhisa Sakano; Mami Takahashi; Michihiro Mutoh; Naoko Niho; Masami Komiya; Hidetaka Sato; Takuji Tanaka; Takashi Sugimura; Keiji Wakabayashi
Enhanced thyroid carcinogenicity of N-nitrosobis(2-oxopropyl)amine in Otsuka Long-Evans Tokushima Fatty rats, a model of type II diabetes mellitus.
Carcinogenesis 2007;28(10):2193-8.
2007: Yoshito Takeuchi; Mami Takahashi; Katsuhisa Sakano; Michihiro Mutoh; Naoko Niho; Masafumi Yamamoto; Hidetaka Sato; Takashi Sugimura; Keiji Wakabayashi
Suppression of N-nitrosobis(2-oxopropyl)amine-induced pancreatic carcinogenesis in hamsters by pioglitazone, a ligand of peroxisome proliferator-activated receptor gamma.
Carcinogenesis 2007;28(8):1692-6.
2007: Hiroyuki Kohno; Mami Takahashi; Yumiko Yasui; Rikako Suzuki; Shingo Miyamoto; Yoshihisa Kamanaka; Masao Naka; Takayuki Maruyama; Keiji Wakabayashi; Takuji Tanaka
A specific inducible nitric oxide synthase inhibitor, ONO-1714 attenuates inflammation-related large bowel carcinogenesis in male Apc(Min/+) mice.
International journal of cancer. Journal international du cancer 2007;121(3):506-13.
2007: Hiroyuki Kohno; Rikako Suzuki; Yumiko Yasui; Shingo Miyamoto; Keiji Wakabayashi; Takuji Tanaka
Ursodeoxycholic acid versus sulfasalazine in colitis-related colon carcinogenesis in mice.
Clinical cancer research : an official journal of the American Association for Cancer Research 2007;13(8):2519-25.
2007: Masanobu Kawanishi; Kazuki Matsukawa; Isao Kuraoka; Takeji Takamura-Enya; Yukari Totsuka; Yasuko Matsumoto; Masahiko Watanabe; Yue Zou; Kiyoji Tanaka; Takashi Sugimura; Keiji Wakabayashi; Takashi Yagi
Molecular evidence of the involvement of the nucleotide excision repair (NER) system in the repair of the mono(ADP-ribosyl)ated DNA adduct produced by pierisin-1, an apoptosis-inducing protein from the cabbage butterfly.
Chemical research in toxicology 2007;20(4):694-700.
2007: Rena Nishigaki; Yukari Totsuka; Hiroyuki Kataoka; Hirohumi Ushiyama; Sumio Goto; Takayuki Akasu; Tetsushi Watanabe; Takashi Sugimura; Keiji Wakabayashi
Detection of aminophenylnorharman, a possible endogenous mutagenic and carcinogenic compound, in human urine samples.
Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology 2007;16(1):151-6.
2006: Tetsushi Watanabe; Hiroshi Ohba; Masaharu Asanoma; Tomohiro Hasei; Takeji Takamura; Yoshiyasu Terao; Tatsushi Shiozawa; Teruhisa Hirayama; Keiji Wakabayashi; Haruo Nukaya
Isolation and identification of non-chlorinated phenylbenzotriazole (non-ClPBTA)-type mutagens in the Ho River in Shizuoka Prefecture, Japan.
Mutation research 2006;609(2):137-45.
2006: Katsuhisa Sakano; Mami Takahashi; Mitsuaki Kitano; Takashi Sugimura; Keiji Wakabayashi
Suppression of azoxymethane-induced colonic premalignant lesion formation by coenzyme Q10 in rats.
Asian Pacific journal of cancer prevention : APJCP 2006;7(4):599-603.
2006: Naoko Niho; Tomohiro Kitamura; Mami Takahashi; Michihiro Mutoh; Hidetaka Sato; Mamoru Matsuura; Takashi Sugimura; Keiji Wakabayashi
Suppression of azoxymethane-induced colon cancer development in rats by a cyclooxygenase-1 selective inhibitor, mofezolac.
Cancer science 2006;97(10):1011-4.
2006: Tsuyoshi Nakano; Yuko Matsushima-Hibiya; Masafumi Yamamoto; Shigeki Enomoto; Yasuko Matsumoto; Yukari Totsuka; Masahiko Watanabe; Takashi Sugimura; Keiji Wakabayashi
Purification and molecular cloning of a DNA ADP-ribosylating protein, CARP-1, from the edible clam Meretrix lamarckii.
Proceedings of the National Academy of Sciences of the United States of America 2006;103(37):13652-7.
2006: Takeji Takamura-Enya; Shigeki Enomoto; Keiji Wakabayashi
Palladium-catalyzed direct N-arylation of nucleosides, nucleotides, and oligonucleotides for efficient preparation of dG-N2 adducts with carcinogenic amino-/nitroarenes.
The Journal of organic chemistry 2006;71(15):5599-606.
2006: Takeji Takamura-Enya; Satoko Ishikawa; Masataka Mochizuki; Keiji Wakabayashi
Chemical synthesis of 2'-deoxyguanosine-C8 adducts with heterocyclic amines: an application to synthesis of oligonucleotides site-specifically adducted with 2-amino-1-methyl-6-phenylimidazo[4,5-b]pyridine.
Chemical research in toxicology 2006;19(6):770-8.
2006: Naoko Niho; Michihiro Mutoh; Katsuhisa Sakano; Mami Takahashi; Sachiko Hirano; Haruo Nukaya; Takashi Sugimura; Keiji Wakabayashi
Inhibition of intestinal carcinogenesis by a new flavone derivative, chafuroside, in oolong tea.
Cancer science 2006;97(4):248-51.
2006: Michihiro Mutoh; Naoko Niho; Keiji Wakabayashi
Concomitant suppression of hyperlipidemia and intestinal polyp formation by increasing lipoprotein lipase activity in Apc-deficient mice.
Biological chemistry 2006;387(4):381-5.
2006: Michihiro Mutoh; Takayuki Akasu; Mami Takahashi; Naoko Niho; Teruhiko Yoshida; Takashi Sugimura; Keiji Wakabayashi
Possible involvement of hyperlipidemia in increasing risk of colorectal tumor development in human familial adenomatous polyposis.
Japanese journal of clinical oncology 2006;36(3):166-71.
2006: Rikako Suzuki; Hiroyuki Kohno; Masumi Suzui; Naoki Yoshimi; Hiroyuki Tsuda; Keiji Wakabayashi; Takuji Tanaka
An animal model for the rapid induction of tongue neoplasms in human c-Ha-ras proto-oncogene transgenic rats by 4-nitroquinoline 1-oxide: its potential use for preclinical chemoprevention studies.
Carcinogenesis 2006;27(3):619-30.
2006: Mami Takahashi; Michihiro Mutoh; Yutaka Shoji; Hidetaka Sato; Yoshihisa Kamanaka; Masao Naka; Takayuki Maruyama; Takashi Sugimura; Keiji Wakabayashi
Suppressive effect of an inducible nitric oxide inhibitor, ONO-1714, on AOM-induced rat colon carcinogenesis.
Nitric oxide : biology and chemistry / official journal of the Nitric Oxide Society 2006;14(2):130-6.
2006: Bunsyo Shiotani; Masahiko Kobayashi; Masahiko Watanabe; Ken-Ichi Yamamoto; Takashi Sugimura; Keiji Wakabayashi
Involvement of the ATR- and ATM-dependent checkpoint responses in cell cycle arrest evoked by pierisin-1.
Molecular cancer research : MCR 2006;4(2):125-33.
2006: Michihiro Mutoh; Mami Takahashi; Keiji Wakabayashi
Roles of prostanoids in colon carcinogenesis and their potential targeting for cancer chemoprevention.
Current pharmaceutical design 2006;12(19):2375-82.
2006: Takuji Tanaka; Hiroyuki Kohno; Rikako Suzuki; Kazuya Hata; Shigeyuki Sugie; Naoko Niho; Katsuhisa Sakano; Mami Takahashi; Keiji Wakabayashi
Dextran sodium sulfate strongly promotes colorectal carcinogenesis in Apc(Min/+) mice: inflammatory stimuli by dextran sodium sulfate results in development of multiple colonic neoplasms.
International journal of cancer. Journal international du cancer 2006;118(1):25-34.
2005: Yutaka Shoji; Mami Takahashi; Nobuo Takasuka; Naoko Niho; Tomohiro Kitamura; Hidetaka Sato; Takayuki Maruyama; Yukihiko Sugimoto; Shuh Narumiya; Takashi Sugimura; Keiji Wakabayashi
Prostaglandin E receptor EP3 deficiency modifies tumor outcome in mouse two-stage skin carcinogenesis.
Carcinogenesis 2005;26(12):2116-22.
2005: Takeji Takamura-Enya; Nariyasu Mano; Nobuo Kawahara; Junichi Goto; Keiji Wakabayashi
Formation of DNA adducts with cholyl adenylate, a putative intermediate for biosynthesis of cholyl-CoA.
Chemical research in toxicology 2005;18(11):1715-20.
2005: Yukari Totsuka; Rena Nishigaki; Shigeki Enomoto; Takeji Takamura-Enya; Ken-ichi Masumura; Takehiko Nohmi; Nobuo Kawahara; Takashi Sugimura; Keiji Wakabayashi
Structures and biological properties of DNA adducts derived from N-nitroso bile acid conjugates.
Chemical research in toxicology 2005;18(10):1553-62.
2005: Bunsyo Shiotani; Masahiko Watanabe; Yukari Totsuka; Takashi Sugimura; Keiji Wakabayashi
Involvement of nucleotide excision repair (NER) system in repair of mono ADP-ribosylated dG adducts produced by pierisin-1, a cytotoxic protein from cabbage butterfly.
Mutation research 2005;572(1-2):150-5.
2005: Naoko Niho; Michihiro Mutoh; Tomohiro Kitamura; Mami Takahashi; Hidetaka Sato; Hiroshi Yamamoto; Takayuki Maruyama; Shuichi Ohuchida; Takashi Sugimura; Keiji Wakabayashi
Suppression of azoxymethane-induced colon cancer development in rats by a prostaglandin E receptor EP1-selective antagonist.
Cancer science 2005;96(5):260-4.
2005: Naoko Niho; Michihiro Mutoh; Mami Takahashi; Kazuhiko Tsutsumi; Takashi Sugimura; Keiji Wakabayashi
Concurrent suppression of hyperlipidemia and intestinal polyp formation by NO-1886, increasing lipoprotein lipase activity in Min mice.
Proceedings of the National Academy of Sciences of the United States of America 2005;102(8):2970-4.
2005: Tetsushi Watanabe; Tomohiro Hasei; Tomoyuki Takahashi; Masaharu Asanoma; Tsuyoshi Murahashi; Teruhisa Hirayama; Keiji Wakabayashi
Detection of a novel mutagen, 3,6-dinitrobenzo[e]pyrene, as a major contaminant in surface soil in Osaka and Aichi Prefectures, Japan.
Chemical research in toxicology 2005;18(2):283-9.
2005: Toshihiko Kawamori; Tomohiro Kitamura; Kouji Watanabe; Naoaki Uchiya; Takayuki Maruyama; Shuh Narumiya; Takashi Sugimura; Keiji Wakabayashi
Prostaglandin E receptor subtype EP(1) deficiency inhibits colon cancer development.
Carcinogenesis 2005;26(2):353-7.
2004: Masanobu Kawanishi; Takeji Takamura-Enya; Rahyani Ermawati; Chiaki Shimohara; Michiyo Sakamoto; Kazuki Matsukawa; Tomonari Matsuda; Tsuyoshi Murahashi; Saburo Matsui; Keiji Wakabayashi; Tetsushi Watanabe; H Yutaka Tashiro; Takashi Yagi
Detection of genistein as an estrogenic contaminant of river water in Osaka.
Environmental science & technology 2004;38(23):6424-9.
2004: Takeshi Ohe; Tetsushi Watanabe; Keiji Wakabayashi
Mutagens in surface waters: a review.
Mutation research 2004;567(2-3):109-49.
2004: Takeji Takamura-Enya; Masahiko Watanabe; Kotaro Koyama; Takashi Sugimura; Keiji Wakabayashi
Mono(ADP-ribosyl)ation of the N2 amino groups of guanine residues in DNA by pierisin-2, from the cabbage butterfly, Pieris brassicae.
Biochemical and biophysical research communications 2004;323(2):579-82.
2004: Masahiko Watanabe; Tsuyoshi Nakano; Bunsyo Shiotani; Yuko Matsushima-Hibiya; Makoto Kiuchi; Fumiko Yukuhiro; Takashi Kanazawa; Kotaro Koyama; Takashi Sugimura; Keiji Wakabayashi
Developmental stage-specific expression and tissue distribution of pierisin-1, a guanine-specific ADP-ribosylating toxin, in Pieris rapae.
Comparative biochemistry and physiology. Part A, Molecular & integrative physiology 2004;139(2):125-31.
2004: Satoshi Matsubara; Hideyuki Shibata; Mami Takahashi; Fumiyasu Ishikawa; Teruo Yokokura; Takashi Sugimura; Keiji Wakabayashi
Cloning of Mongolian gerbil cDNAs encoding inflammatory proteins, and their expression in glandular stomach during H. pylori infection.
Cancer science 2004;95(10):798-802.
2004: Toshihiko Kawamori; Yukari Totsuka; Naoaki Uchiya; Tomohiro Kitamura; Hideyuki Shibata; Takashi Sugimura; Keiji Wakabayashi
Carcinogenicity of aminophenylnorharman, a possible novel endogenous mutagen, formed from norharman and aniline, in F344 rats.
Carcinogenesis 2004;25(10):1967-72.
2004: Rena Nishigaki; Yukari Totsuka; Takeji Takamura-Enya; Takashi Sugimura; Keiji Wakabayashi
Identification of cytochrome P-450s involved in the formation of APNH from norharman with aniline.
Mutation research 2004;562(1-2):19-25.
2004: Yutaka Shoji; Mami Takahashi; Tomohiro Kitamura; Kouji Watanabe; Toshihiko Kawamori; Takayuki Maruyama; Y Sugimoto; M Negishi; Shuh Narumiya; Takashi Sugimura; Keiji Wakabayashi
Downregulation of prostaglandin E receptor subtype EP3 during colon cancer development.
Gut 2004;53(8):1151-8.
2004: Mami Takahashi; Keiji Wakabayashi
Gene mutations and altered gene expression in azoxymethane-induced colon carcinogenesis in rodents.
Cancer science 2004;95(6):475-80.
2004: Shuichi Masuda; Yuya Deguchi; Yumi Masuda; Tetsushi Watanabe; Haruo Nukaya; Yoshiyasu Terao; Takeji Takamura; Keiji Wakabayashi; Naohide Kinae
Genotoxicity of 2-[2-(acetylamino)-4-[bis(2-hydroxyethyl)amino]-5-methoxyphenyl]-5-amino-7-bromo-4-chloro-2H-benzotriazole (PBTA-6) and 4-amino-3,3'-dichloro-5,4'-dinitro-biphenyl (ADDB) in goldfish (Carassius auratus) using the micronucleus test and the comet assay.
Mutation research 2004;560(1):33-40.
2004: Tomohiro Kitamura; Masaki Itoh; Tetsuo Noda; Mamoru Matsuura; Keiji Wakabayashi
Combined effects of cyclooxygenase-1 and cyclooxygenase-2 selective inhibitors on intestinal tumorigenesis in adenomatous polyposis coli gene knockout mice.
International journal of cancer. Journal international du cancer 2004;109(4):576-80.
2004: Masahiko Watanabe; Shigeki Enomoto; Takeji Takamura-Enya; Tsuyoshi Nakano; Kotaro Koyama; Takashi Sugimura; Keiji Wakabayashi
Enzymatic properties of pierisin-1 and its N-terminal domain, a guanine-specific ADP-ribosyltransferase from the cabbage butterfly.
Journal of biochemistry 2004;135(4):471-7.
2004: Yukari Totsuka; Takeji Takamura-Enya; Rena Nishigaki; Takashi Sugimura; Keiji Wakabayashi
Mutagens formed from beta-carbolines with aromatic amines.
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences 2004;802(1):135-41.
2003: Naoko Niho; Mami Takahashi; Yutaka Shoji; Yoshito Takeuchi; Satoshi Matsubara; Takashi Sugimura; Keiji Wakabayashi
Dose-dependent suppression of hyperlipidemia and intestinal polyp formation in Min mice by pioglitazone, a PPAR gamma ligand.
Cancer science 2003;94(11):960-4.
2003: Satoshi Matsubara; Hideyuki Shibata; Fumiyasu Ishikawa; Teruo Yokokura; Mami Takahashi; Takashi Sugimura; Keiji Wakabayashi
Suppression of Helicobacter pylori-induced gastritis by green tea extract in Mongolian gerbils.
Biochemical and biophysical research communications 2003;310(3):715-9.
2003: Mami Takahashi; Michihiro Mutoh; Yutaka Shoji; Yoshihisa Kamanaka; Masao Naka; Takayuki Maruyama; Takashi Sugimura; Keiji Wakabayashi
Transfection of K-rasAsp12 cDNA markedly elevates IL-1beta- and lipopolysaccharide-mediated inducible nitric oxide synthase expression in rat intestinal epithelial cells.
Oncogene 2003;22(48):7667-76.
2003: Naoko Niho; Mami Takahashi; Tomohiro Kitamura; Yutaka Shoji; Masaki Itoh; Tetsuo Noda; Takashi Sugimura; Keiji Wakabayashi
Concomitant suppression of hyperlipidemia and intestinal polyp formation in Apc-deficient mice by peroxisome proliferator-activated receptor ligands.
Cancer research 2003;63(18):6090-5.
2003: Yukari Totsuka; Masanobu Kawanishi; Rena Nishigaki; Kazuki Matsukawa; Takashi Yagi; Takeji Takamura-Enya; Masahiko Watanabe; Takashi Sugimura; Keiji Wakabayashi
Analysis of HPRT and supF mutations caused by pierisin-1, a guanine specific ADP-ribosylating toxin derived from the cabbage butterfly.
Chemical research in toxicology 2003;16(8):945-52.
2003: Tetsushi Watanabe; Tomohiro Hasei; Yoshifumi Takahashi; Shuhei Otake; Tsuyoshi Murahashi; Takeji Takamura; Teruhisa Hirayama; Keiji Wakabayashi
Mutagenic activity and quantification of nitroarenes in surface soil in the Kinki region of Japan.
Mutation research 2003;538(1-2):121-31.
2003: Tomohiro Kitamura; Masaki Itoh; Tetsuo Noda; Kousuke Tani; Michiyoshi Kobayashi; Takayuki Maruyama; Kaoru Kobayashi; Shuichi Ohuchida; Takashi Sugimura; Keiji Wakabayashi
Combined effects of prostaglandin E receptor subtype EP1 and subtype EP4 antagonists on intestinal tumorigenesis in adenomatous polyposis coli gene knockout mice.
Cancer science 2003;94(7):618-21.
2003: Toshihiko Kawamori; Naoaki Uchiya; Takashi Sugimura; Keiji Wakabayashi
Enhancement of colon carcinogenesis by prostaglandin E2 administration.
Carcinogenesis 2003;24(5):985-90.
2003: Tsuyoshi Murahashi; Tetsushi Watanabe; Shuhei Otake; Yoshimasa Hattori; Takeji Takamura; Keiji Wakabayashi; Teruhisa Hirayama
Determination of 3-nitrobenzanthrone in surface soil by normal-phase high-performance liquid chromatography with fluorescence detection.
Journal of chromatography. A 2003;992(1-2):101-7.
2003: Takeji Takamura-Enya; J Ishihara; S Tahara; S Goto; Yukari Totsuka; Takashi Sugimura; Keiji Wakabayashi
Analysis of estrogenic activity of foodstuffs and cigarette smoke condensates using a yeast estrogen screening method.
Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association 2003;41(4):543-50.
2003: Yuko Matsushima-Hibiya; Masahiko Watanabe; Kazuya I P J Hidari; Daisei Miyamoto; Yasuo Suzuki; Takeshi Kasama; Takashi Kasama; Kotaro Koyama; Takashi Sugimura; Keiji Wakabayashi
Identification of glycosphingolipid receptors for pierisin-1, a guanine-specific ADP-ribosylating toxin from the cabbage butterfly.
The Journal of biological chemistry 2003;278(11):9972-8.
2003: Hideyuki Shibata; Masaki Iimuro; Naoaki Uchiya; Toshihiko Kawamori; Masato Nagaoka; Sadao Ueyama; Shusuke Hashimoto; Teruo Yokokura; Takashi Sugimura; Keiji Wakabayashi
Preventive effects of Cladosiphon fucoidan against Helicobacter pylori infection in Mongolian gerbils.
Helicobacter 2003;8(1):59-65.
2003: Tamie Morisawa; Tomoko Mizuno; Takeshi Ohe; Tetsushi Watanabe; Teruhisa Hirayama; Haruo Nukaya; Tatsushi Shiozawa; Yoshiyasu Terao; Hiroyuki Sawanishi; Keiji Wakabayashi
Levels and behavior of 2-phenylbenzotoriazole-type mutagens in the effluent of a sewage treatment plant.
Mutation research 2003;534(1-2):123-32.
2003: Takeji Takamura-Enya; Satoko Ishikawa; Masataka Mochizuki; Keiji Wakabayashi
Development for an efficient synthesis method of 2'-deoxyguanosine-C8 adducts with several amino/nitro-arenes.
Nucleic acids research. Supplement (2001) 2003;(3):23-4.
2002: Masaki Iimuro; Hideyuki Shibata; Toshihiko Kawamori; Takayuki Matsumoto; Tetsuo Arakawa; Takashi Sugimura; Keiji Wakabayashi
Suppressive effects of garlic extract on Helicobacter pylori-induced gastritis in Mongolian gerbils.
Cancer letters 2002;187(1-2):61-8.
2002: Yukari Totsuka; Takeji Takamura-Enya; Nobuo Kawahara; Rena Nishigaki; Takashi Sugimura; Keiji Wakabayashi
Structure of DNA adduct formed with aminophenylnorharman, being responsible for the comutagenic action of norharman with aniline.
Chemical research in toxicology 2002;15(10):1288-94.
2002: Yukari Totsuka; Hiroyuki Kataoka; Takeji Takamura-Enya; Takashi Sugimura; Keiji Wakabayashi
In vitro and in vivo formation of aminophenylnorharman from norharman and aniline.
Mutation research 2002;506-507():49-54.
2002: Tomohiro Kitamura; Toshihiko Kawamori; Naoaki Uchiya; Masaki Itoh; Tetsuo Noda; Mamoru Matsuura; Takashi Sugimura; Keiji Wakabayashi
Inhibitory effects of mofezolac, a cyclooxygenase-1 selective inhibitor, on intestinal carcinogenesis.
Carcinogenesis 2002;23(9):1463-6.
2002: Tetsushi Watanabe; Yoshifumi Takahashi; Tomoyuki Takahashi; Haruo Nukaya; Yoshiyasu Terao; Teruhisa Hirayama; Keiji Wakabayashi
Seasonal fluctuation of the mutagenicity of river water in Fukui, Japan, and the contribution of 2-phenylbenzotriazole-type mutagens.
Mutation research 2002;519(1-2):187-97.
2002: Takashi Kanazawa; Takuo Kono; Masahiko Watanabe; Yuko Matsushima-Hibiya; Tsuyoshi Nakano; Kotaro Koyama; Noriaki Tanaka; Takashi Sugimura; Keiji Wakabayashi
Bcl-2 blocks apoptosis caused by pierisin-1, a guanine-specific ADP-ribosylating toxin from the cabbage butterfly.
Biochemical and biophysical research communications 2002;296(1):20-5.
2002: Tetsushi Watanabe; Tatsushi Shiozawa; Yoshifumi Takahashi; Tomoyuki Takahashi; Yoshiyasu Terao; Haruo Nukaya; Takeji Takamura; Hiroyuki Sawanishi; Takeshi Ohe; Teruhisa Hirayama; Keiji Wakabayashi
Mutagenicity of two 2-phenylbenzotriazole derivatives, 2-[2-(acetylamino)-4-(diethylamino)-5-methoxyphenyl]-5-amino- 7-bromo-4-chloro-2H-benzotriazole and 2-[2-(acetylamino)-4-(diallylamino)-5-methoxyphenyl]-5-amino-7-bromo-4-chloro-2H-benzotriazole and their detection in river water in Japan.
Mutagenesis 2002;17(4):293-9.
2002: Yasuyoshi Sasahara; Michihiro Mutoh; Mami Takahashi; Kazunori Fukuda; Naomi Tanaka; Takashi Sugimura; Keiji Wakabayashi
Suppression of promoter-dependent transcriptional activity of inducible nitric oxide synthase by sodium butyrate in colon cancer cells.
Cancer letters 2002;177(2):155-61.
2002: Takeshi Ohe; Tomoko Takata; Yoko Maeda; Yukari Totsuka; Noriyasu Hada; Atsuko Matsuoka; Noriho Tanaka; Keiji Wakabayashi
Induction of sister chromatid exchanges and chromosome aberrations in cultured mammalian cells treated with aminophenylnorharman formed by norharman with aniline.
Mutation research 2002;515(1-2):181-8.
2002: Takeji Takamura-Enya; Tetsushi Watanabe; Atsuko Tada; Teruhisa Hirayama; Haruo Nukaya; Takashi Sugimura; Keiji Wakabayashi
Identification of a new mutagenic polychlorinated biphenyl derivative in the Waka River, Wakayama, Japan, showing activation of an aryl hydrocarbon receptor-dependent transcription.
Chemical research in toxicology 2002;15(3):419-25.
2002: Hideyuki Shibata; Toshihisa Ohta; Masaki Iimuro; Tomohiro Kitamura; Teruo Yokokura; Keiji Wakabayashi
Suppression of Helicobacter pylori-induced gastritis by urease inhibitors in Mongolian gerbils.
Gan to kagaku ryoho. Cancer & chemotherapy 2002;29 Suppl 1():154-8.
2002: Masahiko Watanabe; Takeji Takamura-Enya; Takashi Kanazawa; Yukari Totsuka; Yuko Matsushima-Hibiya; Kotaro Koyama; Takashi Sugimura; Keiji Wakabayashi
Mono(ADP-ribosyl)ation of DNA by apoptosis-inducing protein, pierisin.
Nucleic acids research. Supplement (2001) 2002;(2):243-4.
2002: Toshihiko Kawamori; Seiichi Nakatsugi; Toshihisa Ohta; Takashi Sugimura; Keiji Wakabayashi
Chemopreventive effects of nimesulide, a selective cyclooxygenase-2 inhibitor, against PhIP-induced mammary carcinogenesis.
Advances in experimental medicine and biology 2002;507():371-6.
2002: Toshihiko Kawamori; Keiji Wakabayashi
COX-2 and prostanoid receptors: good targets for chemoprevention.
Journal of environmental pathology, toxicology and oncology : official organ of the International Society for Environmental Toxicology and Cancer 2002;21(2):149-53.
2002: Michihiro Mutoh; Kouji Watanabe; Tomohiro Kitamura; Yutaka Shoji; Mami Takahashi; Toshihiko Kawamori; Kousuke Tani; Michiyoshi Kobayashi; Takayuki Maruyama; Kaoru Kobayashi; Shuichi Ohuchida; Yukihiko Sugimoto; Shuh Narumiya; Takashi Sugimura; Keiji Wakabayashi
Involvement of prostaglandin E receptor subtype EP(4) in colon carcinogenesis.
Cancer research 2002;62(1):28-32.
2001: Toshihiko Kawamori; Naoaki Uchiya; Seiichi Nakatsugi; Kouji Watanabe; Shuichi Ohuchida; Hiroshi Yamamoto; Takayuki Maruyama; Kigen Kondo; Takashi Sugimura; Keiji Wakabayashi
Chemopreventive effects of ONO-8711, a selective prostaglandin E receptor EP(1) antagonist, on breast cancer development.
Carcinogenesis 2001;22(12):2001-4.
2001: Tetsushi Watanabe; Haruo Nukaya; Yoshiyasu Terao; Yoshifumi Takahashi; A Tada; Takeji Takamura; Hiroyuki Sawanishi; Takeshi Ohe; Teruhisa Hirayama; T Sugimura; Keiji Wakabayashi
Synthesis of 2-phenylbenzotriazole-type mutagens, PBTA-5 and PBTA-6, and their detection in river water from Japan.
Mutation research 2001;498(1-2):107-15.
2001: Toshihiko Kawamori; Naoaki Uchiya; Tomohiro Kitamura; Shuichi Ohuchida; Hiroshi Yamamoto; Takayuki Maruyama; Takashi Sugimura; Keiji Wakabayashi
Evaluation of a selective prostaglandin E receptor EP1 antagonist for potential properties in colon carcinogenesis.
Anticancer research 2001;21(6A):3865-9.
2001: Takeji Takamura-Enya; Masahiko Watanabe; Yukari Totsuka; Takashi Kanazawa; Yuko Matsushima-Hibiya; Kotaro Koyama; Takashi Sugimura; Keiji Wakabayashi
Mono(ADP-ribosyl)ation of 2'-deoxyguanosine residue in DNA by an apoptosis-inducing protein, pierisin-1, from cabbage butterfly.
Proceedings of the National Academy of Sciences of the United States of America 2001;98(22):12414-9.
2001: Yukari Totsuka; Toshihiko Kawamori; S Hisada; K Mitsumori; J Ishihara; Takashi Sugimura; Keiji Wakabayashi
Testicular toxicity in F344 rats by aminophenylnorharman, formed from norharman and aniline.
Toxicology and applied pharmacology 2001;175(2):169-75.
2001: M Onozawa; K Fukuda; Masahiko Watanabe; M Ohtani; H Akaza; Takashi Sugimura; Keiji Wakabayashi
Detection and cloning of a protein recognized by anti-human prostate-specific antigen (PSA) antibody in the rat ventral prostate.
Japanese journal of cancer research : Gann 2001;92(8):863-8.
2001: Toshihisa Ohta; Hideyuki Shibata; Toshihiko Kawamori; Masaki Iimuro; Takashi Sugimura; Keiji Wakabayashi
Marked reduction of Helicobacter pylori-induced gastritis by urease inhibitors, acetohydroxamic acid and flurofamide, in Mongolian gerbils.
Biochemical and biophysical research communications 2001;285(3):728-33.
2001: N Hada; Yukari Totsuka; T Enya; K Tsurumaki; M Nakazawa; Nobuo Kawahara; Y Murakami; Y Yokoyama; Takashi Sugimura; Keiji Wakabayashi
Structures of mutagens produced by the co-mutagen norharman with o- and m-toluidine isomers.
Mutation research 2001;493(1-2):115-26.
2001: Haruo Nukaya; Tatsushi Shiozawa; A Tada; Yoshiyasu Terao; Takeshi Ohe; Tetsushi Watanabe; Masaharu Asanoma; Hiroyuki Sawanishi; T Katsuhara; Takashi Sugimura; Keiji Wakabayashi
Identification of 2-[2-(acetylamino)-4-amino-5-methoxyphenyl]-5-amino-7-bromo-4-chloro-2H-benzotriazole (PBTA-4) as a potent mutagen in river water in Kyoto and Aichi prefectures, Japan.
Mutation research 2001;492(1-2):73-80.
2001: H Komatsu; Masahiko Watanabe; M Ohyama; T Enya; Kotaro Koyama; Takashi Kanazawa; Nobuo Kawahara; Takashi Sugimura; Keiji Wakabayashi
Phenanthroindolizidine alkaloids as cytotoxic substances in a Danaid butterfly, Ideopsis similis, against human cancer cells.
Journal of medicinal chemistry 2001;44(11):1833-6.
2001: Takashi Kanazawa; Masahiko Watanabe; Yuko Matsushima-Hibiya; Takuo Kono; N Tanaka; Kotaro Koyama; Takashi Sugimura; Keiji Wakabayashi
Distinct roles for the N- and C-terminal regions in the cytotoxicity of pierisin-1, a putative ADP-ribosylating toxin from cabbage butterfly, against mammalian cells.
Proceedings of the National Academy of Sciences of the United States of America 2001;98(5):2226-31.
2001: Toshihiko Kawamori; Yukari Totsuka; J Ishihara; Naoaki Uchiya; Takashi Sugimura; Keiji Wakabayashi
Induction of liver preneoplastic lesions by aminophenylnorharman, formed from norharman and aniline, in male F344 rats.
Cancer letters 2001;163(2):157-61.
2001: Toshihiko Kawamori; Naoaki Uchiya; Kouji Watanabe; Toshihisa Ohta; Takashi Sugimura; Keiji Wakabayashi
Effects of heterocyclic amines with mammary gland carcinogenic potential on estrogenic response of uterus in ovariectomized rats.
Cancer letters 2001;162(1):31-7.
2000: K Nakano; K Suyama; H Fukazawa; Mitsuo Uchida; Keiji Wakabayashi; Tatsushi Shiozawa; Yoshiyasu Terao
Chlorination of harman and norharman with sodium hypochlorite and co-mutagenicity of the chlorinated products.
Mutation research 2000;470(2):141-6.
2000: Seiichi Nakatsugi; Toshihisa Ohta; Toshihiko Kawamori; Michihiro Mutoh; T Tanigawa; Kouji Watanabe; Shigeyuki Sugie; Takashi Sugimura; Keiji Wakabayashi
Chemoprevention by nimesulide, a selective cyclooxygenase-2 inhibitor, of 2-amino-1-methyl-6-phenylimidazo[4,5-b]pyridine (PhIP)-induced mammary gland carcinogenesis in rats.
Japanese journal of cancer research : Gann 2000;91(9):886-92.
2000: Yuko Matsushima-Hibiya; Masahiko Watanabe; Takuo Kono; Takashi Kanazawa; Kotaro Koyama; Takashi Sugimura; Keiji Wakabayashi
Purification and cloning of pierisin-2, an apoptosis-inducing protein from the cabbage butterfly, Pieris brassicae.
European journal of biochemistry / FEBS 2000;267(18):5742-50.
2000: T Tanigawa; Toshihiko Kawamori; Masaki Iimuro; Toshihisa Ohta; K Higuchi; T Arakawa; Takashi Sugimura; Keiji Wakabayashi
Marked enhancement by fish meal of Helicobacter pylori-induced gastritis in Mongolian gerbils.
Japanese journal of cancer research : Gann 2000;91(8):769-73.
2000: Kouji Watanabe; Toshihiko Kawamori; Seiichi Nakatsugi; Toshihisa Ohta; Shuichi Ohuchida; Hiroshi Yamamoto; Takayuki Maruyama; Kigen Kondo; Shuh Narumiya; Takashi Sugimura; Keiji Wakabayashi
Inhibitory effect of a prostaglandin E receptor subtype EP(1) selective antagonist, ONO-8713, on development of azoxymethane-induced aberrant crypt foci in mice.
Cancer letters 2000;156(1):57-61.
2000: Michihiro Mutoh; Mami Takahashi; K Fukuda; H Komatsu; T Enya; Yuko Matsushima-Hibiya; H Mutoh; Takashi Sugimura; Keiji Wakabayashi
Suppression by flavonoids of cyclooxygenase-2 promoter-dependent transcriptional activity in colon cancer cells: structure-activity relationship.
Japanese journal of cancer research : Gann 2000;91(7):686-91.
2000: Tatsushi Shiozawa; A Tada; Haruo Nukaya; Tetsushi Watanabe; Y Takahashi; Masaharu Asanoma; Takeshi Ohe; Hiroyuki Sawanishi; T Katsuhara; Takashi Sugimura; Keiji Wakabayashi; Yoshiyasu Terao
Isolation and identification of a new 2-phenylbenzotriazole-type mutagen (PBTA-3) in the Nikko river in Aichi, Japan.
Chemical research in toxicology 2000;13(7):535-40.
2000: Mami Takahashi; Michihiro Mutoh; Toshihiko Kawamori; Takashi Sugimura; Keiji Wakabayashi
Altered expression of beta-catenin, inducible nitric oxide synthase and cyclooxygenase-2 in azoxymethane-induced rat colon carcinogenesis.
Carcinogenesis 2000;21(7):1319-27.
2000: Mami Takahashi; Seiichi Nakatsugi; Takashi Sugimura; Keiji Wakabayashi
Frequent mutations of the beta-catenin gene in mouse colon tumors induced by azoxymethane.
Carcinogenesis 2000;21(6):1117-20.
2000: Michihiro Mutoh; Mami Takahashi; K Fukuda; Yuko Matsushima-Hibiya; H Mutoh; Takashi Sugimura; Keiji Wakabayashi
Suppression of cyclooxygenase-2 promoter-dependent transcriptional activity in colon cancer cells by chemopreventive agents with a resorcin-type structure.
Carcinogenesis 2000;21(5):959-63.
2000: Toshihisa Ohta; Seiichi Nakatsugi; Kouji Watanabe; Toshihiko Kawamori; F Ishikawa; M Morotomi; Shigeyuki Sugie; T Toda; Takashi Sugimura; Keiji Wakabayashi
Inhibitory effects of Bifidobacterium-fermented soy milk on 2-amino-1-methyl-6-phenylimidazo[4,5-b]pyridine-induced rat mammary carcinogenesis, with a partial contribution of its component isoflavones.
Carcinogenesis 2000;21(5):937-41.
2000: Kouji Watanabe; Toshihiko Kawamori; Seiichi Nakatsugi; Keiji Wakabayashi
COX-2 and iNOS, good targets for chemoprevention of colon cancer.
BioFactors (Oxford, England) 2000;12(1-4):129-33.
2000: Toshihiko Kawamori; Mami Takahashi; Kouji Watanabe; Toshihisa Ohta; Seiichi Nakatsugi; Takashi Sugimura; Keiji Wakabayashi
Suppression of azoxymethane-induced colonic aberrant crypt foci by a nitric oxide synthase inhibitor.
Cancer letters 2000;148(1):33-7.
1999: Kouji Watanabe; Toshihiko Kawamori; Seiichi Nakatsugi; Toshihisa Ohta; Shuichi Ohuchida; Hiroshi Yamamoto; Takayuki Maruyama; Kigen Kondo; Fumitaka Ushikubi; Shuh Narumiya; Takashi Sugimura; Keiji Wakabayashi
Role of the prostaglandin E receptor subtype EP1 in colon carcinogenesis.
Cancer research 1999;59(20):5093-6.
1999: Masahiko Watanabe; Takuo Kono; Yuko Matsushima-Hibiya; Takashi Kanazawa; N Nishisaka; T Kishimoto; Kotaro Koyama; Takashi Sugimura; Keiji Wakabayashi
Molecular cloning of an apoptosis-inducing protein, pierisin, from cabbage butterfly: possible involvement of ADP-ribosylation in its activity.
Proceedings of the National Academy of Sciences of the United States of America 1999;96(19):10608-13.
1999: Yukari Totsuka; H Ushiyama; J Ishihara; R Sinha; S Goto; Takashi Sugimura; Keiji Wakabayashi
Quantification of the co-mutagenic beta-carbolines, norharman and harman, in cigarette smoke condensates and cooked foods.
Cancer letters 1999;143(2):139-43.
1999: Tatsushi Shiozawa; K Suyama; K Nakano; Haruo Nukaya; Hiroyuki Sawanishi; A Oguri; Keiji Wakabayashi; Yoshiyasu Terao
Mutagenic activity of 2-phenylbenzotriazole derivatives related to a mutagen, PBTA-1, in river water.
Mutation research 1999;442(2):105-11.
1999: M Onozawa; Toshihiko Kawamori; M Baba; K Fukuda; T Toda; H Sato; M Ohtani; H Akaza; Takashi Sugimura; Keiji Wakabayashi
Effects of a soybean isoflavone mixture on carcinogenesis in prostate and seminal vesicles of F344 rats.
Japanese journal of cancer research : Gann 1999;90(4):393-8.
1999: Takuo Kono; Masahiko Watanabe; Kotaro Koyama; T Kishimoto; S Fukushima; Takashi Sugimura; Keiji Wakabayashi
Cytotoxic activity of pierisin, from the cabbage butterfly, Pieris rapae, in various human cancer cell lines.
Cancer letters 1999;137(1):75-81.
1999: M Masutani; T Nozaki; E Nishiyama; T Shimokawa; Y Tachi; H Suzuki; Hitoshi Nakagama; Keiji Wakabayashi; T Sugimura
Function of poly(ADP-ribose) polymerase in response to DNA damage: gene-disruption study in mice.
Molecular and cellular biochemistry 1999;193(1-2):149-52.
1998: Yukari Totsuka; N Hada; K Matsumoto; Nobuo Kawahara; Y Murakami; Y Yokoyama; Takashi Sugimura; Keiji Wakabayashi
Structural determination of a mutagenic aminophenylnorharman produced by the co-mutagen norharman with aniline.
Carcinogenesis 1998;19(11):1995-2000.
1998: M Fukutake; Seiichi Nakatsugi; T Isoi; Mami Takahashi; Toshihisa Ohta; S Mamiya; Y Taniguchi; H Sato; K Fukuda; Takashi Sugimura; Keiji Wakabayashi
Suppressive effects of nimesulide, a selective inhibitor of cyclooxygenase-2, on azoxymethane-induced colon carcinogenesis in mice.
Carcinogenesis 1998;19(11):1939-42.
1998: A Oguri; Tatsushi Shiozawa; Yoshiyasu Terao; Haruo Nukaya; J Yamashita; Takeshi Ohe; Hiroyuki Sawanishi; T Katsuhara; Takashi Sugimura; Keiji Wakabayashi
Identification of a 2-phenylbenzotriazole (PBTA)-type mutagen, PBTA-2, in water from the Nishitakase River in Kyoto.
Chemical research in toxicology 1998;11(10):1195-200.
1998: A Oguri; M Suda; Yukari Totsuka; Takashi Sugimura; Keiji Wakabayashi
Inhibitory effects of antioxidants on formation of heterocyclic amines.
Mutation research 1998;402(1-2):237-45.
1998: M Onozawa; K Fukuda; M Ohtani; H Akaza; Takashi Sugimura; Keiji Wakabayashi
Effects of soybean isoflavones on cell growth and apoptosis of the human prostatic cancer cell line LNCaP.
Japanese journal of clinical oncology 1998;28(6):360-3.
1998: T Ohata; K Fukuda; A Murakami; H Ohigashi; Takashi Sugimura; Keiji Wakabayashi
Inhibition by 1'-acetoxychavicol acetate of lipopolysaccharide- and interferon-gamma-induced nitric oxide production through suppression of inducible nitric oxide synthase gene expression in RAW264 cells.
Carcinogenesis 1998;19(6):1007-12.
1998: Masahiko Watanabe; Takuo Kono; Kotaro Koyama; Takashi Sugimura; Keiji Wakabayashi
Purification of pierisin, an inducer of apoptosis in human gastric carcinoma cells, from cabbage butterfly, Pieris rapae.
Japanese journal of cancer research : Gann 1998;89(5):556-61.
1998: Tatsushi Shiozawa; K Muraoka; Haruo Nukaya; Takeshi Ohe; Hiroyuki Sawanishi; A Oguri; Keiji Wakabayashi; Takashi Sugimura; Yoshiyasu Terao
Chemical synthesis of a novel aromatic amine mutagen isolated from water of the Nishitakase River in Kyoto and a possible route of its formation.
Chemical research in toxicology 1998;11(4):375-80.
1998: Mami Takahashi; K Fukuda; Takashi Sugimura; Keiji Wakabayashi
Beta-catenin is frequently mutated and demonstrates altered cellular location in azoxymethane-induced rat colon tumors.
Cancer research 1998;58(1):42-6.
1997: Seiichi Nakatsugi; M Fukutake; Mami Takahashi; K Fukuda; T Isoi; Y Taniguchi; Takashi Sugimura; Keiji Wakabayashi
Suppression of intestinal polyp development by nimesulide, a selective cyclooxygenase-2 inhibitor, in Min mice.
Japanese journal of cancer research : Gann 1997;88(12):1117-20.
1997: Mami Takahashi; Yukari Totsuka; M Masuda; K Fukuda; A Oguri; K Yazawa; Takashi Sugimura; Keiji Wakabayashi
Reduction in formation of 2-amino-1-methyl-6-phenylimidazo[4,5-b]pyridine (PhIP)-induced aberrant crypt foci in the rat colon by docosahexaenoic acid (DHA).
Carcinogenesis 1997;18(10):1937-41.
1997: Haruo Nukaya; J Yamashita; K Tsuji; Yoshiyasu Terao; Takeshi Ohe; Hiroyuki Sawanishi; T Katsuhara; K Kiyokawa; M Tezuka; A Oguri; Takashi Sugimura; Keiji Wakabayashi
Isolation and chemical-structural determination of a novel aromatic amine mutagen in water from the Nishitakase River in Kyoto.
Chemical research in toxicology 1997;10(10):1061-6.
1997: Mami Takahashi; M Fukutake; T Isoi; K Fukuda; H Sato; K Yazawa; Takashi Sugimura; Keiji Wakabayashi
Suppression of azoxymethane-induced rat colon carcinoma development by a fish oil component, docosahexaenoic acid (DHA).
Carcinogenesis 1997;18(7):1337-42.
1997: Mami Takahashi; K Fukuda; T Ohata; Takashi Sugimura; Keiji Wakabayashi
Increased expression of inducible and endothelial constitutive nitric oxide synthases in rat colon tumors induced by azoxymethane.
Cancer research 1997;57(7):1233-7.
1997: T Ohata; K Fukuda; Mami Takahashi; Takashi Sugimura; Keiji Wakabayashi
Suppression of nitric oxide production in lipopolysaccharide-stimulated macrophage cells by omega 3 polyunsaturated fatty acids.
Japanese journal of cancer research : Gann 1997;88(3):234-7.
1996: K Koyama; Keiji Wakabayashi; M Masutani; K Koiwai; M Watanabe; S Yamazaki; T Kono; K Miki; T Sugimura
Presence in Pieris rapae of cytotoxic activity against human carcinoma cells.
Japanese journal of cancer research : Gann 1996;87(12):1259-62.
1996: M Mori; Yukari Totsuka; K Fukutome; T Yoshida; T Sugimura; Keiji Wakabayashi
Formation of DNA adducts by the co-mutagen norharman with aromatic amines.
Carcinogenesis 1996;17(7):1499-503.
1996: R Inoue; Toshikazu Ushijima; M Katami; H Kushida; Keiji Wakabayashi; H Sato; M Asamoto; M Katsuki; T Sugimura; M Nagao
Rare activation of the human c-Ha-ras transgene of mice in hemangioendothelial sarcomas and liver tumors induced by Glu-P-1.
Japanese journal of cancer research : Gann 1996;87(6):583-8.
1996: Kayoko Shimoi; R Miyamura; T Mori; T Todo; E Ohtsuka; Keiji Wakabayashi; Naohide Kinae
3-Amino-1,4-dimethyl-5H-pyrido[4,3-b]indole (Trp-P-1) inhibits the binding activity of T4 endonuclease V to UV-damaged DNA.
Carcinogenesis 1996;17(6):1279-83.
1996: M Nagao; Keiji Wakabayashi; Toshikazu Ushijima; M Toyota; Y Totsuka; T Sugimura
Human exposure to carcinogenic heterocyclic amines and their mutational fingerprints in experimental animals.
Environmental health perspectives 1996;104 Suppl 3():497-501.
1996: M Fukutake; M Takahashi; K Ishida; H Kawamura; T Sugimura; Keiji Wakabayashi
Quantification of genistein and genistin in soybeans and soybean products.
Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association 1996;34(5):457-61.
1996: Yukari Totsuka; K Fukutome; Mami Takahashi; S Takahashi; A Tada; T Sugimura; Keiji Wakabayashi
Presence of N2-(deoxyguanosin-8-yl)-2-amino-3,8-dimethylimidazo[4,5-f]quinoxaline (dG-C8-MeIQx) in human tissues.
Carcinogenesis 1996;17(5):1029-34.
1996: A Tada; Keiji Wakabayashi; Y Totsuka; T Sugimura; Kuniro Tsuji; Haruo Nukaya
32P-Postlabeling analysis of a DNA adduct, an N2-acetyl derivative of guanine, formed in vitro by methylglyoxal and hydrogen peroxide in combination.
Mutation research 1996;351(2):173-80.
1996: K Sone; M Maeda; Keiji Wakabayashi; N Takeichi; M Mori; T Sugimura; M Nagao
Inhibition of hereditary hepatitis and liver tumor development in Long-Evans cinnamon rats by the copper-chelating agent trientine dihydrochloride.
Hepatology (Baltimore, Md.) 1996;23(4):764-70.
1996: Mami Takahashi; M Fukutake; S Yokota; K Ishida; Keiji Wakabayashi; T Sugimura
Suppression of azoxymethane-induced aberrant crypt foci in rat colon by nimesulide, a selective inhibitor of cyclooxygenase 2.
Journal of cancer research and clinical oncology 1996;122(4):219-22.
1996: M Ochiai; M Watanabe; H Kushida; Keiji Wakabayashi; T Sugimura; M Nagao
DNA adduct formation, cell proliferation and aberrant crypt focus formation induced by PhIP in male and female rat colon with relevance to carcinogenesis.
Carcinogenesis 1996;17(1):95-8.
1995: M Hirose; Keiji Wakabayashi; M Ochiai; H Kushida; H Sato; T Sugimura; M Nagao
Formation and removal of DNA adducts in the liver of rats chronically fed the food-borne carcinogen, 2-amino-3,8-dimethylimidazo[4,5-f]quinoxaline.
Japanese journal of cancer research : Gann 1995;86(6):516-22.
1995: Keiji Wakabayashi; I S Kim; R Kurosaka; Z Yamaizumi; H Ushiyama; M Takahashi; S Koyota; A Tada; Haruo Nukaya; S Goto
Identification of new mutagenic heterocyclic amines and quantification of known heterocyclic amines.
Princess Takamatsu symposia 1995;23():39-49.
1995: M Masutani; T Nozaki; Keiji Wakabayashi; T Sugimura
Role of poly(ADP-ribose) polymerase in cell-cycle checkpoint mechanisms following gamma-irradiation.
Biochimie 1995;77(6):462-5.
1995: A Oguri; K Karakama; N Arakawa; T Sugimura; Keiji Wakabayashi
Detection of mutagenicity of diphenyl ether herbicides in Salmonella typhimurium YG1026 and YG1021.
Mutation research 1995;346(1):57-60.
1994: F Canzian; Toshikazu Ushijima; T Serikawa; Keiji Wakabayashi; T Sugimura; M Nagao
Instability of microsatellites in rat colon tumors induced by heterocyclic amines.
Cancer research 1994;54(24):6315-7.
1994: Toshikazu Ushijima; Y Hosoya; M Ochiai; H Kushida; Keiji Wakabayashi; T Suzuki; M Hayashi; T Sofuni; T Sugimura; M Nagao
Tissue-specific mutational spectra of 2-amino-3,4-dimethylimidazo[4,5-f]quinoline in the liver and bone marrow of lacI transgenic mice.
Carcinogenesis 1994;15(12):2805-9.
1994: H Kushida; Keiji Wakabayashi; H Sato; M Katami; R Kurosaka; M Nagao
Dose-response study of MeIQx carcinogenicity in F344 male rats.
Cancer letters 1994;83(1-2):31-5.
1994: A Tada; M Ochiai; Keiji Wakabayashi; Haruo Nukaya; T Sugimura; M Nagao
Identification of N-(deoxyguanosin-8-yl)-2-amino-3,4-dimethylimidazo[4,5-f]quinoline (dG-C8-MeIQ) as a major adduct formed by MeIQ with nucleotides in vitro with DNA in vivo.
Carcinogenesis 1994;15(6):1275-8.
1994: Haruo Nukaya; S Koyota; F Jinno; H Ishida; Keiji Wakabayashi; R Kurosaka; I S Kim; Z Yamaizumi; H Ushiyama; T Sugimura
Structural determination of a new mutagenic heterocyclic amine, 2-amino-1,7,9-trimethylimidazo[4,5-g]quinoxaline (7,9-DiMeIgQx), present in beef extract.
Carcinogenesis 1994;15(6):1151-4.
1994: K Fukutome; M Ochiai; Keiji Wakabayashi; S Watanabe; T Sugimura; M Nagao
Detection of guanine-C8-2-amino-1-methyl-6-phenylimidazo[4,5-b]pyridine adduct as a single spot on thin-layer chromatography by modification of the 32P-postlabeling method.
Japanese journal of cancer research : Gann 1994;85(2):113-7.
1994: I S Kim; Keiji Wakabayashi; R Kurosaka; Z Yamaizumi; F Jinno; S Koyota; A Tada; Haruo Nukaya; M Takahashi; T Sugimura
Isolation and identification of a new mutagen, 2-amino-4-hydroxy-methyl-3,8-dimethylimidazo[4,5-f]quinoxaline (4-CH2OH-8-MeIQx), from beef extract.
Carcinogenesis 1994;15(1):21-6.
1993: M Ochiai; H Nagaoka; Keiji Wakabayashi; Y Tanaka; S B Kim; A Tada; Haruo Nukaya; T Sugimura; M Nagao
Identification of N2-(deoxyguanosin-8-yl)-2-amino-3,8-dimethyl-imidazo[4,5- f]quinoxaline 3',5'-diphosphate, a major DNA adduct, detected by nuclease P1 modification of the 32P-postlabeling method, in the liver of rats fed MeIQx.
Carcinogenesis 1993;14(10):2165-70.
1993: H Sone; Keiji Wakabayashi; H Kushida; M Ochiai; T Sugimura; M Nagao
Effects of chronic administration of low doses of 2-amino-3,8-dimethylimidazo-[4,5-f]quinoxaline on glutathione S-transferase placental form-positive foci development in the livers of rats fed a choline-deficient diet.
Japanese journal of cancer research : Gann 1993;84(8):859-64.
1993: S E Shephard; Keiji Wakabayashi; M Nagao
Mutagenic activity of peptides and the artificial sweetener aspartame after nitrosation.
Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association 1993;31(5):323-9.
1993: Haruo Nukaya; Y Inaoka; Hitoshi Ishida; Kuniro Tsuji; Y Suwa; Keiji Wakabayashi; T Kosuge
Modification of the amino group of guanosine by methylglyoxal and other alpha-ketoaldehydes in the presence of hydrogen peroxide.
Chemical & pharmaceutical bulletin 1993;41(4):649-53.
1993: Keiji Wakabayashi; H Ushiyama; M Takahashi; Haruo Nukaya; S B Kim; M Hirose; M Ochiai; T Sugimura; M Nagao
Exposure to heterocyclic amines.
Environmental health perspectives 1993;99():129-34.
1992: Yorihiro Yamamoto; Keiji Wakabayashi; Etsuo Niki; M Nagao
Comparison of plasma levels of lipid hydroperoxides and antioxidants in hyperlipidemic Nagase analbuminemic rats, Sprague-Dawley rats, and humans.
Biochemical and biophysical research communications 1992;189(1):518-23.
1992: H Nagaoka; Keiji Wakabayashi; S B Kim; I S Kim; Y Tanaka; M Ochiai; A Tada; Haruo Nukaya; T Sugimura; M Nagao
Adduct formation at C-8 of guanine on in vitro reaction of the ultimate form of 2-amino-1-methyl-6-phenylimidazo[4,5-b]pyridine with 2'-deoxyguanosine and its phosphate esters.
Japanese journal of cancer research : Gann 1992;83(10):1025-9.
1992: R Kurosaka; Keiji Wakabayashi; H Ushiyama; Haruo Nukaya; N Arakawa; T Sugimura; M Nagao
Detection of 2-amino-1-methyl-6-(4-hydroxyphenyl)imidazo[4,5-b]pyridine in broiled beef.
Japanese journal of cancer research : Gann 1992;83(9):919-22.
1992: H Kushida; Keiji Wakabayashi; M Suzuki; S Takahashi; K Imaida; T Sugimura; M Nagao
Suppression of spontaneous hepatocellular carcinoma development in C3H/HeNCrj mice by the lipophilic ascorbic acid, 2-O-octadecylascorbic acid (CV-3611).
Carcinogenesis 1992;13(6):913-5.
1992: H Sone; Keiji Wakabayashi; H Kushida; T Sugimura; M Nagao
Induction of preneoplastic lesions by a low dose of 2-amino-3,8-dimethylimidazo[4,5-f]quinoxaline (MeIQx) in the livers of rats treated with carbon tetrachloride.
Carcinogenesis 1992;13(5):793-7.
1992: H Sone; M Maeda; M Gotoh; Keiji Wakabayashi; T Ono; M C Yoshida; N Takeichi; M Mori; S Hirohashi; T Sugimura
Genetic linkage between copper accumulation and hepatitis/hepatoma development in LEC rats.
Molecular carcinogenesis 1992;5(3):199-204.
1991: B E Watkins; M Suzuki; Håkan Wallin; Keiji Wakabayashi; Jan Alexander; M Vanderlaan; T Sugimura; H Esumi
The effect of dose and enzyme inducers on the metabolism of 2-amino-1-methyl-6-phenylimidazo[4,5-b]pyridine (PhIP) in rats.
Carcinogenesis 1991;12(12):2291-5.
1991: M Nagao; M Nakayasu; S Aonuma; Keiji Wakabayashi; M Hirose; T Sugimura
Mutagenic properties of 2-amino-N6-hydroxyadenine in Salmonella and in Chinese hamster lung cells in culture.
Mutation research 1991;253(1):97-102.
1991: B E Watkins; H Esumi; Keiji Wakabayashi; M Nagao; T Sugimura
Fate and distribution of 2-amino-1-methyl-6-phenylimidazo[4,5-b]pyridine (PhIP) in rats.
Carcinogenesis 1991;12(6):1073-8.
1991: M Ochiai; K Ogawa; Keiji Wakabayashi; T Sugimura; S Nagase; H Esumi; M Nagao
Induction of intestinal adenocarcinomas by 2-amino-1-methyl-6-phenylimidazo[4,5-b]pyridine in Nagase analbuminemic rats.
Japanese journal of cancer research : Gann 1991;82(4):363-6.
1991: Haruo Nukaya; H Watanabe; Hitoshi Ishida; Kuniro Tsuji; Y Suwa; Keiji Wakabayashi; M Nagao; T Sugimura; T Kosuge
Isolation and structural determination of a mutagenic substance in creatine pyrolysate.
Chemical & pharmaceutical bulletin 1991;39(2):533-5.
1990: Haruo Nukaya; T Iwami; Hitoshi Ishida; Kuniro Tsuji; Y Suwa; Keiji Wakabayashi; M Nagao; T Sugimura; T Kosuge
N-2 acetylation of 2'-deoxyguanosine by coffee mutagens, methylglyoxal and hydrogen peroxide.
Mutation research 1990;245(4):251-7.
1990: Keiji Wakabayashi
International Commission for Protection Against Environmental Mutagens and Carcinogens. ICPEMC Working Paper 7/1/3. Animal studies suggesting involvement of mutagen/carcinogen exposure in atherosclerosis.
Mutation research 1990;239(3):181-7.
1990: M Hirose; Keiji Wakabayashi; S Grivas; Silvio De Flora; N Arakawa; M Nagao; T Sugimura
Formation of a nitro derivative of 2-amino-3,4-dimethylimidazo[4,5-f]quinoline by photo-irradiation.
Carcinogenesis 1990;11(5):869-71.
1990: K Yamashita; M Adachi; S Kato; Hitoshi Nakagama; M Ochiai; Keiji Wakabayashi; S Sato; M Nagao; T Sugimura
DNA adducts formed by 2-amino-3,8-dimethylimidazo[4,5-f]quinoxaline in rat liver: dose-response on chronic administration.
Japanese journal of cancer research : Gann 1990;81(5):470-6.
1990: Keiji Wakabayashi
Identification of food mutagens.
Progress in clinical and biological research 1990;340E():107-16.
1989: K Takayama; K Yamashita; Keiji Wakabayashi; T Sugimura; M Nagao
DNA modification by 2-amino-1-methyl-6-phenylimidazo[4,5-b]pyridine in rats.
Japanese journal of cancer research : Gann 1989;80(12):1145-8.
1989: M Shioya; Keiji Wakabayashi; K Yamashita; M Nagao; T Sugimura
Formation of 8-hydroxydeoxyguanosine in DNA treated with fecapentaene-12 and -14.
Mutation research 1989;225(3):91-4.
1989: Keiji Wakabayashi; M Nagao; T Sugimura
Mutagens and carcinogens produced by the reaction of environmental aromatic compounds with nitrite.
Cancer surveys 1989;8(2):385-99.
1988: K Yamashita; Keiji Wakabayashi; Y Kitagawa; M Nagao; T Sugimura
32P-postlabeling analysis of DNA adducts in rat stomach with 1-nitrosoindole-3-acetonitrile, a direct-acting mutagenic indole compound formed by nitrosation.
Carcinogenesis 1988;9(10):1905-7.
1988: T Tahira; H Ohgaki; Keiji Wakabayashi; M Nagao; T Sugimura
The inhibitory effect of thioproline on carcinogenesis induced by N-benzylmethylamine and nitrite.
Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association 1988;26(6):511-6.
1980: K Takeda; K Shudo; T Okamoto; M Nagao; Keiji Wakabayashi; T Sugimura
Effect of methyl substitution on mutagenicity of 2-aminodipyrido.
Carcinogenesis 1980;1(11):889-92.