Redox Behavior of Active Aldehydes Derived from Thiamin Coenzyme Analogs
Ikuo Nakanishi, Shinobu Itoh, Tomoyoshi Suenobu, Hiroo Inoue, and Shunichi Fukuzumi Chem. Lett.,26 (8), 707-708 (1997). DOI: 10.1246/cl.1997.707
Electron Transfer Properties of Active Aldehydes Derived from Thiamin Coenzyme Analogues
Ikuo Nakanishi, Shinobu Itoh, Tomoyoshi Suenobu, and Shunichi Fukuzumi Chem. Commun.,1997 (19), 1927-1928 (1997). DOI: 10.1039/a704559j
Direct Observation of Radical Intermediates While Investigating the Redox Behavior of Thiamin Coenzyme Models
Ikuo Nakanishi, Shinobu Itoh, Tomoyoshi Suenobu, and Shunichi Fukuzumi Angew. Chem.,110 (7), 1040-1042 (1998); Angew. Chem., Int. Ed.,37 (7), 992-994 (1998). DOI: 10.1002/(SICI)1521-3773(19980420)37:7<992::AID-ANIE992>3.0.CO;2-P
Formation of Radical Anions in the Reaction of p-Benzoquinone and C60 with Alkoxide Anions
Shunichi Fukuzumi, Ikuo Nakanishi, Junichi Maruta, Tomohiro Yorisue, Tomoyoshi Suenobu, Shinobu Itoh, Ryuichi Arakawa, and Karl M. Kadish J. Am. Chem. Soc.,120 (27), 6673-6680 (1998). DOI: 10.1021/ja980615k
Electron-Transfer Kinetics for Generation of Organoiron(IV) Porphyrins and the Iron(IV) Porphyrin p Radical Cations
Shunichi Fukuzumi, Ikuo Nakanishi, Keiko Tanaka, Tomoyoshi Suenobu, Alain Tabard, Roger Guilard, Eric Van Caemelbecke, and Karl M. Kadish J. Am. Chem. Soc.,121 (4), 785-790 (1999). DOI: 10.1021/ja982136r
Decreased Electron Transfer Rates of Manganese Porphyrins with Conformational Distortions of the Macrocycle
Shunichi Fukuzumi, Ikuo Nakanishi, Jean-Michel Barbe, Roger Guilard, Eric Van Caemelbecke, Ning Guo, and Karl M. Kadish Angew. Chem.,111 (7), 1017-1019 (1999); Angew. Chem., Int. Ed.,38 (7), 964-966 (1999). DOI: 10.1002/(SICI)1521-3773(19990401)38:7<964::AID-ANIE964>3.0.CO;2-O
Electron-Transfer Properties of C60 and tert-Butyl-C60 Radical
Shunichi Fukuzumi, Ikuo Nakanishi, Tomoyoshi Suenobu, and Karl M. Kadish J. Am. Chem. Soc.,121 (14), 3468-3474 (1999). DOI: 10.1021/ja9838615
Synthesis and Electrochemical Studies of a Series of Fluorinated Dodecaphenylporphyrins
Karl M. Kadish, Eric Van Caemelbecke, Francis D'Souza, Min Lin, Daniel J. Nurco, Craig J. Medforth, Timothy P. Forsyth, BŽnŽdicte Krattinger, Kevin M. Smith, Shunichi Fukuzumi, Ikuo Nakanishi, and John A. Shelnutt Inorg. Chem.,38 (9), 2188-2198 (1999). DOI: 10.1021/ic9811695
Electron-Transfer Properties of Active Aldehydes of Thiamin Coenzyme Models, and Mechanism of Formation of the Reactive Intermediates
Ikuo Nakanishi, Shinobu Itoh, and Shunichi Fukuzumi Chem. Eur. J.,5 (10), 2810-2818 (1999). DOI: 10.1002/(SICI)1521-3765(19991001)5:10<2810::AID-CHEM2810>3.0.CO;2-F
Migration Reactivities of s-Bonded Ligands of Organoiron and Organocobalt Porphyrins Depending on Different High Oxidation States
Shunichi Fukuzumi, Ikuo Nakanishi, Keiko Tanaka, Alain Tabard, Roger Guilard, Eric Van Caemelbecke, and Karl M. Kadish Inorg. Chem.,38 (22), 5000-5006 (1999). DOI: 10.1021/ic990324s
Multielectron Oxidation of Anthracenes with a One-Electron Oxidant via Water-Accelerated Electron-Transfer Disproportionation of the Radical Cations
as the Rate-Determining Step
Shunichi Fukuzumi, Ikuo Nakanishi, and Keiko Tanaka J. Phys. Chem. A,103 (50), 11212-11220 (1999). DOI: 10.1021/jp990541e
Base Control of Electron-Transfer Reactions of Manganese(III) Porphyrins
Ikuo Nakanishi, Shunichi Fukuzumi, Jean-Michel Barbe, Roger Guilard, and Karl M. Kadish Eur. J. Inorg. Chem.,2000 (7), 1557-1562 (2000). DOI: 10.1002/1099-0682(200007)2000:7<1557::AID-EJIC1557>3.0.CO;2-9
Hydroxylation of Nitrated Naphthalenes with KO2/Crown Ether
Kiyoshi Fukuhara, Yukie Hara, Ikuo Nakanishi, and Naoki Miyata Chem. Pharm. Bull.,48 (10), 1532-1535 (2000). DOI: 10.1248/cpb.48.1532
Reactive Species Responsible for Biological Actions of Photoexcited Fullerenes
Naoki Miyata, Yoko Yamakoshi, and Ikuo Nakanishi Yakugaku Zasshi,120 (10), 1007-1016 (2000).
DNA Damage Caused by Photosensitizers
Ikuo Nakanishi and Naoki Miyata Environ. Mutagen Res.,23 (2), 65-71 (2001).
Superoxide Anion Generation via Electron-Transfer Oxidation of Catechin Dianion by Molecular Oxygen in an Aprotic Medium
Ikuo Nakanishi, Kiyoshi Fukuhara, Kei Ohkubo, Tomokazu Shimada, Hisao Kansui, Masaaki Kurihara, Shiro Urano, Shunichi Fukuzumi, and Naoki Miyata Chem. Lett.,30 (11), 1152-1153 (2001). DOI: 10.1246/cl.2001.1152
DNA Cleavage via Superoxide Anion Formed in Photoinduced Electron Transfer from NADH to g-Cyclodextrin-Bicapped C60 in an Oxygen-Saturated Aqueous Solution
Ikuo Nakanishi, Shunichi Fukuzumi, Toshifumi Konishi, Kei Ohkubo, Mamoru Fujitsuka, Osamu Ito, and Naoki Miyata J. Phys. Chem. B,106 (9), 2372-2380 (2002). DOI: 10.1021/jp013215j
Enhanced Radical-Scavenging Activity of a Planar Catechin Analogue
Kiyoshi Fukuhara, Ikuo Nakanishi, Hisao Kansui, Etsuko Sugiyama, Mitsuhiro Kimura, Tomokazu Shimada, Shiro Urano, Kentaro Yamaguchi, and Naoki Miyata J. Am. Chem. Soc.,124 (21), 5952-5953 (2002). DOI: 10.1021/ja0178259
Effects of Magnesium Ion on Kinetic Stability and Spin Distribution of Phenoxyl Radical Derived from a Vitamin E Analogue: Mechanistic Insight into Antioxidative Hydrogen Transfer Reaction of Vitamin E
Ikuo Nakanishi, Kiyoshi Fukuhara, Tomokazu Shimada, Kei Ohkubo, Yuko Iizuka, Keiko Inami, Masataka Mochizuki, Shiro Urano, Shinobu Itoh, Naoki Miyata, and Shunichi Fukuzumi J. Chem. Soc., Perkin Trans. 2,2002 (9), 1520-1524 (2002). DOI: 10.1039/b205380b
Direct Detection of Superoxide Anion Generated in C60-Photosensitized Oxidation of NADH and an Analogue by Molecular Oxygen
Ikuo Nakanishi, Kei Ohkubo, Shunsuke Fujita, Shunichi Fukuzumi, Toshifumi Konishi, Mamoru Fujitsuka, Osamu Ito, and Naoki Miyata J. Chem. Soc., Perkin Trans. 2,2002 (11), 1829-1833 (2002). DOI: 10.1039/b206887g
Effects of Metal Ions Distinguishing between One-Step Hydrogen- and Electron-Transfer Mechanisms for the Radical-Scavenging Reaction of (+)-Catechin
Ikuo Nakanishi, Kentaro Miyazaki, Tomokazu Shimada, Kei Ohkubo, Shiro Urano, Nobuo Ikota, Toshihiko Ozawa, Shunichi Fukuzumi, and Kiyoshi Fukuhara J. Phys. Chem. A,106 (46), 11123-11126 (2002). DOI: 10.1021/jp026190c
A Planar Catechin Analogue as a Promising Antioxidant with Reduced Prooxidant Activity
Kiyoshi Fukuhara, Ikuo Nakanishi, Tomokazu Shimada, Kei Ohkubo, Kentaro Miyazaki, Wataru Hakamata, Shiro Urano, Nobuo Ikota, Toshihiko Ozawa, Haruhiro Okuda, Naoki Miyata, and Shunichi Fukuzumi Chem. Res. Toxicol.,16 (1), 81-86 (2003). DOI: 10.1021/tx025581f
Efficient Radical Scavenging Ability of Artepillin C, a Major Component of Brazilian Propolis, and the Mechanism
Ikuo Nakanishi, Yoshihiro Uto, Kei Ohkubo, Kentaro Miyazaki, Haruko Yakumaru, Shiro Urano, Haruhiro Okuda, Jun-Ichi Ueda, Toshihiko Ozawa, Kiyoshi Fukuhara, Shunichi Fukuzumi, Hideko Nagasawa, Hitoshi Hori, and Nobuo Ikota Org. Biomol. Chem.,1 (9), 1452-1454 (2003). DOI: 10.1039/b302098c
Kinetic Study of the Electron-Transfer Oxidation of the Phenolate Anion of a Vitamin E Model by Molecular Oxygen Generating Superoxide Anion in an Aprotic Medium
Ikuo Nakanishi, Kentaro Miyazaki, Tomokazu Shimada, Yuko Iizuka, Keiko Inami, Masataka Mochizuki, Shiro Urano, Haruhiro Okuda, Toshihiko Ozawa, Shunichi Fukuzumi, Nobuo Ikota, and Kiyoshi Fukuhara Org. Biomol. Chem.,1 (22), 4085-4088 (2003). DOI: 10.1039/b306758k
A Planar Catechin Analogue Having a More Negative Oxidation Potential than (+)-Catechin as an Electron-Transfer Antioxidant against a Peroxyl Radical
Ikuo Nakanishi, Kei Ohkubo, Kentaro Miyazaki, Wataru Hakamata, Shiro Urano, Toshihiko Ozawa, Haruhiro Okuda, Shunichi Fukuzumi, Nobuo Ikota, and Kiyoshi Fukuhara Chem. Res. Toxicol.,17 (1), 26-31 (2004). DOI: 10.1021/tx034134c
EPR Study on Stable Magnesium Complexes of the Phenoxyl Radicals Derived from a Vitamin E Model and Its Deuterated Derivatives
Ikuo Nakanishi, Shigenobu Matsumoto, Kei Ohkubo, Kiyoshi Fukuhara, Haruhiro Okuda, Keiko Inami, Masataka Mochizuki, Toshihiko Ozawa, Shinobu Itoh, Shunichi Fukuzumi, and Nobuo Ikota Bull. Chem. Soc. Jpn.,77 (9), 1741-1744 (2004). DOI: 10.1246/bcsj.77.1741
Water-Accelerated Radical-Scavenging Reaction of (+)-Catechin in an Aprotic Medium
Ikuo Nakanishi, Tomonori Kawashima, Kiyoshi Fukuhara, Hideko Kanazawa, Haruhiro Okuda, Shunichi Fukuzumi, Toshihiko Ozawa, and Nobuo Ikota ITE Lett. Batt. New Tech. Med.,5 (6), 585-588 (2004).
Electron-Tansfer Mechanism in Radical-Scavenging Reactions by a Vitamin E Model in a Protic Medium
Ikuo Nakanishi, Tomonori Kawashima, Kei Ohkubo, Hideko Kanazawa, Keiko Inami, Masataka Mochizuki, Kiyoshi Fukuhara, Haruhiro Okuda, Toshihiko Ozawa, Shinobu Itoh, Shunichi Fukuzumi, and Nobuo Ikota Org. Biomol. Chem.,3 (4), 626-629 (2005). DOI: 10.1039/b416572a
Hydroxyl Radical Generation via Photoreduction of a Simple Pyridine N-Oxide by an NADH Analogue
Ikuo Nakanishi, Chiho Nishizawa, Kei Ohkubo, Keizo Takeshita, Kazuo T. Suzuki, Toshihiko Ozawa, Sidney M. Hecht, Masayuki Tanno, Shoko Sueyoshi, Naoki Miyata, Haruhiro Okuda, Shunichi Fukuzumi, Nobuo Ikota, and Kiyoshi Fukuhara Org. Biomol. Chem.,3 (18), 3263-3265 (2005). DOI: 10.1039/b509447j
Structural Basis for DNA-Cleaving Activity of Resveratrol in the Presence of Cu(II)
Kiyoshi Fukuhara, Maki Nagakawa, Ikuo Nakanishi, Kei Ohkubo, Kohei Imai, Shiro Urano, Shunichi Fukuzumi, Toshihiko Ozawa, Nobuo Ikota, Masataka Mochizuki, Naoki Miyata, and Haruhiro Okuda Bioorg. Med. Chem.,14 (5), 1437-1443 (2006). DOI: 10.1016/j.bmc.2005.09.070
Reaction of para-Hydroxybenzoic Acid Esters with Singlet Oxygen in the Presence of Glutathione Produces Glutathione Conjugates of Hydroquinone, Potent Inducers of Oxidative Stress
Chiho Nishizawa, Keizo Takeshita, Jun-Ichi Ueda, Ikuo Nakanishi, Kazuo T. Suzuki, and Toshihiko Ozawa Free Radical Res.,40 (3), 233-240 (2006). DOI: 10.1080/10715760500485036
Comparison of Stable Nitroxide, 3-Substituted 2,2,5,5-Tetramethylpyrrolidine-N-oxyls, with Respect to Protection from Radiation, Prevention of DNA Damage, and Distribution in Mice
Kazunori Anzai, Megumi Ueno, Akira Yoshida, Masako Furuse, Winn Aung, Ikuo Nakanishi, Takashi Moritake, Keizo Takeshita, and Nobuo Ikota Free Radical Biol. Med.,40 (7), 1170-1178 (2006). DOI: 10.1016/j.freeradbiomed.2005.11.006
Planar Catechin Analogues with Alkyl Side Chains, a Potent Antioxidant and an a-Glucosidase Inhibitor
Wataru Hakamata, Ikuo Nakanishi, Yu Masuda, Takehiko Shimizu, Hajime Higuchi, Yuriko Nakamura, Shinichi Saito, Shiro Urano, Tadatake Oku, Toshihiko Ozawa, Nobuo Ikota, Naoki Miyata, Haruhiro Okuda, and Kiyoshi Fukuhara J. Am. Chem. Soc.,128 (20), 6524-6525 (2006). DOI: 10.1021/ja057763c
Drastic Effect of Several Caffeic Acid Derivatives on the Induction of Heme Oxygenase-1 Expression Revealed by Quantitative Real-Time RT-PCR
Keiko Suzuki, Izumi Tanaka, Ikuo Nakanishi, Ayako Kurematsu, Haruko Yakumaru, Nobuo Ikota, and Hiroshi Ishihara Biofactors,28 (3-4), 151-158 (2006).
Scandium Ion-Accelerated Scavenging Reaction of Cumylperoxyl Radical by a Cyclic Nitroxyl Radical via Electron Transfer
Ikuo Nakanishi, Kumiko Kawaguchi, Kei Ohkubo, Tomonori Kawashima, Sushma Manda, Hideko Kanazawa, Keizo Takeshita, Kazunori Anzai, Toshihiko Ozawa, Shunichi Fukuzumi, and Nobuo Ikota Chem. Lett.,36 (3), 378-379 (2007). DOI: 10.1246/cl.2007.378
Effect of Solvent Polarity on the One-Electron Oxidation of Cyclic Nitroxyl Radicals
Sushma Manda, Ikuo Nakanishi, Kei Ohkubo, Tomonori Kawashima, Ken-ichiro Matsumoto, Toshihiko Ozawa, Shunichi Fukuzumi, Nobuo Ikota, and Kazunori Anzai Chem. Lett.,36 (7), 914-915 (2007). DOI: 10.1246/cl.2007.914
A Long-Lived o-Semiquinone Radical Anion is Formed from N-b-alanyl-5-S-glutathionyl-3,4-dihydroxyphenylalanine (5-S-GAD), an Insect-derived Antibacterial Substance
Nobuko Akiyama, Ikuo Nakanishi, Kei Ohkubo, Kazue Satoh, Koichiro Tsuchiya, Takeshi Nishikawa, Shunichi Fukuzumi, Nobuo Ikota, Toshihiko Ozawa, Masafumi Tsujimoto, and Shunji Natori J. Biochem.,142 (1), 41-48 (2007). DOI: 10.1093/jb/mvm101
Involvement of Electron Transfer in the Radical-Scavenging Reaction of Resveratrol
Ikuo Nakanishi, Tomokazu Shimada, Kei Ohkubo, Sushma Manda, Takehiko Shimizu, Shiro Urano, Haruhiro Okuda, Naoki Miyata, Toshihiko Ozawa, Kazunori Anzai, Shunichi Fukuzumi, Nobuo Ikota, and Kiyoshi Fukuhara Chem. Lett.,36 (10), 1276-1277 (2007). DOI: 10.1246/cl.2007.1276
Enhanced Radical-Scavenging Activity of Naturally-Oriented Artepillin C Derivatives
Sushma Manda, Ikuo Nakanishi, Kei Ohkubo, Yoshihiro Uto, Tomonori Kawashima, Kiyoshi Fukuhara, Haruhiro Okuda, Hitoshi Hori, Toshihiko Ozawa, Nobuo Ikota, Shunichi Fukuzumi, and Kazunori Anzai Chem. Commun.,2008 (5), 626-628. DOI: 10.1039/b715973k
Effect of Methyl Substitution on Antioxidative Property and Genotoxicity of Resveratrol
Kiyoshi Fukuhara, Ikuo Nakanishi, Atsuko Matsuoka, Tomohiro Matsumura, Sachiko Honda, Mikiko Hayashi, Toshihiko Ozawa, Naoki Miyata, Shinichi Saito, Nobuo Ikota, and Haruhiro Okuda Chem. Res. Toxicol.,21 (2), 282-287 (2008). DOI: 10.1021/tx7003008
Intracellular and Extracellular Redox Environments Surrounding Redox-Sensitive Contrast Agents under Oxidative Atmosphere
Aya Okajo, Iori Ui, Sushma Manda, Ikuo Nakanishi, Ken-ichiro Matsumoto, Kazunori Anzai, and Kazutoyo Endo Biol. Pharm. Bull.,32 (4), 535-541 (2009). DOI: 10.1248/bpb.32.535
Detection of Free Radical Reactions in an Aqueous Sample Induced by Low Linear-Energy-Transfer Irradiation
Ken-ichiro Matsumoto, Aya Okajo, Katsura Nagata, William G. DeGraff, Minako Nyui, Megumi Ueno, Ikuo Nakanishi, Toshihiko Ozawa, James B. Mitchell, Murali C. Krishna, Haruhiko Yamamoto, Kazutoyo Endo, and Kazunori Anzai Biol. Pharm. Bull.,32 (4), 542-547 (2009). DOI: 10.1248/bpb.32.542
Intramolecular Base-Accelerated Radical-Scavenging Reaction of a Planar Catechin Derivative Bearing a Lysine Moiety
Kiyoshi Fukuhara, Ikuo Nakanishi, Kei Ohkubo, Yoshinori Obara, Ayako Tada, Kohei Imai, Akiko Ohno, Asao Nakamura, Toshihiko Ozawa, Shiro Urano, Shinichi Saito, Shunichi Fukuzumi, Kazunori Aznai, Naoki Miyata, and Haruhiro Okuda Chem. Commun.,2009 (41), 6180-6182. DOI: 10.1039/b913714a.
Synthesis and Enhanced Radical Scavenging Activity of a Conformationally Constrained Epigallocatechin Analogue
Kohei Imai, Ikuo Nakanishi, Kazunori Anzai, Toshihiko Ozawa, Naoki Miyata, Shiro Urano, Haruhiro Okuda, Asao Nakamura, and Kiyoshi Fukuhara Chem. Lett.,40 (12), 1417-1419 (2011). DOI: 10.1246/cl.2011.1417
Key Role of Chemical Hardness to Compare 2,2-Diphenyl-1-picrylhydrazyl Radical Scavenging Power of Flavone and Flavonol O-Glycoside and C-Glycoside Derivatives
Tsukasa Waki, Ikuo Nakanishi, Ken-ichiro Matsumoto, Junichi Kitajima, Toshiyuki Chikuma, and Shigeki Kobayashi Chem. Pharm. Bull.,60 (1), 37-44 (2012). DOI: 10.1248/cpb.60.37
Temperature-Dependent Free Radical Reaction in Water
Ken-ichiro Matsumoto, Minako Nyui, Masato Kamibayashi, Toshihiko Ozawa, Ikuo Nakanishi, and Kazunori Anzai J. Clin. Biochem. Nutr.,50 (1), 40-46 (2012). DOI: 10.3164/jcbn.10-145
Effect of Amifostine, a Radiation-Protecting Drug, on Oxygen Concentration of Tissue Measured by EPR Oximetry and Imaging
Ken-ichiro Matsumoto, Ikuo Nakanishi, et al. Radiat. Res., in contribution.
Kinetics and Mechanism for the Scavenging Reaction of 2,2-Diphenyl-1-picrylhydrazyl Radical by Synthetic Artepillin C Analogues
Tomonori Kawashima, Sushma Manda, Yoshihiro Uto, Kei Ohkubo, Hitoshi Hori, Ken-ichiro Matsumoto, Kiyoshi Fukuhara, Nobuo Ikota, Shunichi Fukuzumi, Toshihiko Ozawa, Kazunori Anzai, and Ikuo Nakanishi Bull. Chem. Soc. Jpn., in contribution.
Chlorine Atom Substitution Influences Radical Scavenging Activity in 6-Chromanol
Keiko Inami, Yuko Iizuka, Miyuki Furukawa, Ikuo Nakanishi, Kei Ohkubo, Kiyoshi Fukuhara, Shunichi Fukuzumi, Haruhiro Okuda, and Masataka Mochizuki Bioorg. Med. Chem., in contribution.
Efficient Antiapoptosis Activity of Lycopene with Small Ionization Potential
Hiroko P. Indo, Ikuo Nakanishi, Kei Ohkubo, Hsiu-Chuan Yen, Minako Nyui, Sushma Manda, Ken-ichiro Matsumoto, Shunichi Fukuzumi, Kazunori Anzai, Nobuo Ikota, Hirofumi Matsui, Yukiko Minamiyama, Hiroshi Ichikawa, Toshihiko Ozawa, and Hideyuki J. Majima J. Am. Chem. Soc., in preparation.
Detection of Phenoxyl Radicals Derived from Aminochromanols in Aqueous Solution
Keiko Inami, Ikuo Nakanishi, Mine Morita, Miyuki Furukawa, Yuko Iizuka, Kei Ohkubo, Kazunori Anzai, Shunichi Fukuzumi, and Masataka Mochizuki J. Am. Chem. Soc., in preparation.
Involvement of Proton-Coupled Electron Transfer in the Radical-Scavenging Reaction of Melatonin in a Protic Medium
Ikuo Nakanishi, Kailash Manda, Masato Kamibayashi, Kei Ohkubo, A. K. M. Raushan Kabir Zoardar, Tomonori Kawashima, Ken-ichiro Matsumoto, Shunichi Fukuzumi, Toshihiko Ozawa, and Kazunori Anzai J. Am. Chem. Soc., in preparation.
Enhanced Radical-Scavenging Activity of Vitamin E Derivatives Bearing a Pyridine Moiety as an Intramolecular Base Catalyst
Ikuo Nakanishi, Haruko Yakumaru, Minako Nyui, Kei Ohkubo, Tomonori Kawashima, Kiyoshi Fukuhara, Shunichi Fukuzumi, Toshihiko Ozawa, Kazunori Anzai, and Nobuo Ikota Org. Biomol. Chem., in preparation.
B O O K S
Research Guide for First Year Graduate Students. The Basics of Giving a Research Presentation
Ikuo Nakanishi Kagaku,52 (4), 20-22 (1997).
Formation of C60 Radical Anion in the Reaction of C60 with Alkoxide Anions
Shunichi Fukuzumi, Ikuo Nakanishi, Junichi Maruta, Tomoyoshi Suenobu, Ryuichi Arakawa, and Karl M. Kadish
"Fullerenes Volume 5: Recent Advances in the Chemistry and Physics of Fullerenes and Related Materials," ed by K. M. Kadish and R. S. Ruoff, The Electrochemical Society, Pennington, NJ (1997), pp.20-32.
Electron Transfer Properties of C60 and the Alkyl Adduct Anion
Shunichi Fukuzumi, Ikuo Nakanishi, Tomoyoshi Suenobu, and Karl M. Kadish
"Fullerenes Volume 6: Recent Advances in the Chemistry and Physics of Fullerenes and Related Materials," ed by K. M. Kadish and R. S. Ruoff, The Electrochemical Society, Pennington, NJ (1998), pp.1263-1275.
O2¥- Generation in C60-Photosensitized Oxidation of NADH and an Analogue by Oxygen
Ikuo Nakanishi, Yoko Yamakoshi, Kei Ohkubo, Shunsuke Fujita, Mamoru Fujitsuka, Osamu Ito, Shunichi Fukuzumi, and Naoki Miyata
"Fullerenes 2000 Volume 8: Electrochemistry and Photochemistry," ed by S. Fukuzumi, F. D'Souza, and D. M. Guldi, The Electrochemical Society, Pennington, NJ (2000), pp.242-255.
DNA Cleavage via Electron Transfer from NADH to Molecular Oxygen Photoinduced by g-Cyclodextrin-Bicapped C60
Ikuo Nakanishi, Shunichi Fukuzumi, Toshifumi Konishi, Kei Ohkubo, Mamoru Fujitsuka, Osamu Ito, and Naoki Miyata
"Fullerenes Volume 11: Fullerenes for the New Millenium," ed by P. V. Kamat, D. M. Guldi, and K. M. Kadish, The Electrochemical Society, Pennington, NJ (2001), pp.138-151.
Generation of Oxygen Radicals and DNA-Cleaving Ability in Quinone/NADH System
Kiyoshi Fukuhara, Yuki Naito, Yukiko Sato, Ikuo Nakanishi, and Naoki Miyata Magnetic Resonance in Medicine,13, 139-142 (2002).
Mechanism of Generation of Reactive Oxygen Species and DNA Damage by Photosensitized Reactions of Fullerenes
Ikuo Nakanishi Radiological Sciences,45 (10), 322-326 (2002).
Oxidation Potentials of Antioxidative Flavonoids and the Radical-Scavenging Abilities
Ikuo Nakanishi, Kentaro Miyazaki, Kei Ohkubo, Shiro Urano, Jun-Ichi Ueda, Wataru Hakamata, Haruhiro Okuda, Toshihiko Ozawa, Shunichi Fukuzumi, Kiyoshi Fukuhara, and Nobuo Ikota Free Radical Biol. Med.,35 (S1), S43 (2003).
Radical-Scavenging Reactions of 4-Hydroxycinnamic Acid Derivatives in the Presence of Metal Ions
Ikuo Nakanishi, Yoshihiro Uto, Tomonori Kawashima, Haruko Yakumaru, Hideko Kanazawa, Toshiniko Ozawa, Hideko Nagasawa, Hitoshi Hori, and Nobuo Ikota J. Pharm. Soc. Jpn.,124 (Suppl. 1), 94 (2004).
Effects of Metal Ions on the Stability of Oxygen and Nitrogen Radicals
Ikuo Nakanishi, Tomonori Kawashima, Hideko Kanazawa, Kei Ohkubo, Kiyoshi Fukuhara, Toshiniko Ozawa, Shunichi Fukuzumi, and Nobuo Ikota J. Pharm. Soc. Jpn.,124 (Suppl. 1), 95 (2004).
ESR Study on Stable Magnesium Complexes of the Phenoxyl Radicals Derived from a Vitamin E Model and Its Deuterated Derivatives
Ikuo Nakanishi, Shigenobu Matsumoto, Kei Ohkubo, Kiyoshi Fukuhara, Haruhiro Okuda, Keiko Inami, Masataka Mochizuki, Shinobu Itoh, Shunichi Fukuzumi, Nobuo Ikota, and Toshihiko Ozawa Free Radical Biol. Med.,37 (S1), S40 (2004).
Solvent Effect on the Mechanism of Radical-Scavenging Reactions of a Vitamin E Analogue
Ikuo Nakanishi, Tomonori Kawashima, Kei Ohkubo, Hideko Kanazawa, Haruhiro Okuda, Toshihiko Ozawa, Shunichi Fukuzumi, Kiyoshi Fukuhara, and Nobuo Ikota Free Radical Biol. Med.,37 (S1), S39-S40 (2004).
Radical-Scavenging Reactions of a Vitamin E Analogue in the Presence of a Metal Ion
Ikuo Nakanishi, Kentaro Miyazaki, Kei Ohkubo, Yuko Iizuka, Keiko Inami, Shiro Urano, Haruhiro Okuda, Masataka Mochizuki, Shunichi Fukuzumi, Kiyoshi Fukuhara, Toshihiko Ozawa, and Nobuo Ikota
"Advances in the Research of Vitamin E Volume XI," Japanese Vitamin E Research Association, Japan (2005), pp.17-22.
Oxidation Behavior of a Vitamin E Analogue Anion
Ikuo Nakanishi, Kentaro Miyazaki, Kei Ohkubo, Wataru Hakamata, Shiro Urano, Haruhiro Okuda, Shunichi Fukuzumi, Kiyoshi FUkuhara, Toshihiko Ozawa, and Nobuo Ikota
"Advances in the Research of Vitamin E Volume XI," Japanese Vitamin E Research Association, Japan (2005), pp.90-95.
Catalysis of Metal Ions in Radical-Scavenging Reactions by Phenolic Antioxidants in Protic Solvents
Tomonori Kawashima, Ikuo Nakanishi, Minako Nyui, Kumiko Kawaguchi, Kei Ohkubo, Hideko Kanazawa, Haruhiro Okuda, Kiyoshi Fukuhara, Shunichi Fukuzumi, Toshihiko Ozawa, and Nobuo Ikota J. Pharm. Soc. Jpn.,125 (Suppl. 1), 88 (2005).
Solvent Effect on the Radical-Scavenging Mechanism of a Vitamin E Model
Tomonori Kawashima, Ikuo Nakanishi, Hideko Kanazawa, Haruhiro Okuda, Kiyoshi Fukuhara, Toshihiko Ozawa, and Nobuo Ikota
"Proceeding of the 4th Meeting of Society of the Study of AOB (Antioxidant Biofactor)," (2005), in press.
Development of Safe and Strong Antioxidative Supplements
Ikuo Nakanishi Science & Technology Journal,14 (8), 48-49 (2005).
Scavenging Reaction of a Peroxyl Radical by a Nitroxide Radical via Electron Transfer
Toshihiko Ozawa, Kumiko Kawaguchi, Ikuo Nakanishi, Kei Ohkubo, Tomonori Kawashima, Hideko Kanazawa, Kazunori Anzai, Shunichi Fukuzumi, and Nobuo Ikota Lipid Peroxide Research,29, 78 (2005).
Kinetic Study on the Radical-Scavenging Activity of Natural Antioxidants Having 4-Propenylphenol Structures
Tomonori Kawashima, Ikuo Nakanishi, Kei Ohkubo, Yoshihiro Uto, Sushma Manda, Hideko Kanazawa, Kiyoshi Fukuhara, Haruhiro Okuda, Keiko Suzuki, Hideko Nagasawa, Hitoshi Hori, Kazunori Anzai, Toshihiko Ozawa, Shunichi Fukuzumi, and Nobuo Ikota Free Radical Res.,40 (S1), S102 (2006).
Radical-Scavenging Activity of Nitroxide Radical as an Electron Donor
Kumiko Kawaguchi, Ikuo Nakanishi, Kei Ohkubo, Tomonori Kawashima, Sushma Manda, Hideko Kanazawa, Keizo Takeshita, Kazunori Anzai, Toshihiko Ozawa, Shunichi Fukuzumi, and Nobuo Ikota Free Radical Res.,40 (S1), S165 (2006).
Kinetic Study on the Radical-Scavenging Activity of Natural Antioxidants Having 4-Propenylphenol Structures
Tomonori Kawashima, Ikuo Nakanishi, Kei Ohkubo, Yoshihiro Uto, Sushma Manda, Hideko Kanazawa, Kiyoshi Fukuhara, Haruhiro Okuda, Keiko Suzuki, Hideko Nagasawa, Hitoshi Hori, Kazunori Anzai, Toshihiko Ozawa, Shunichi Fukuzumi, and Nobuo Ikota
"XIII Congress of the Society for Free Radical Research International," International Proceedings, Medimond, Italy (2006), pp.199-201.
Radical-Scavenging Activity of Nitroxyl Radical as an Electron Donor
Sushma Manda, Kumiko Kawaguchi, Kei Ohkubo, Tomonori Kawashima, Hideko Kanazawa, Keizo Takeshita, Kazunori Anzai, Toshihiko Ozawa, Shunichi Fukuzumi, Nobuo Ikota, and Ikuo Nakanishi
"XIII Congress of the Society for Free Radical Research International," International Proceedings, Medimond, Italy (2006), pp.237-239.
Scavenging Activity of Cumylperoxyl Radical by Artepillin C and Its Derivatives
Ikuo Nakanishi, Yoshihiro Uto, Kei Ohkubo, Tomonori Kawashima, Sushma Manda, Hideko Kanazawa, Hideko Nagasawa, Hitoshi Hori, Haruhiro Okuda, Kiyoshi Fukuhara, Toshihiko Ozawa, Nobuo Ikota, Shunichi Fukuzumi, and Kazunori Anzai Lipid Peroxide Research,30, 62 (2006).
Base Catalysis in Radical-Scavenging Reactions by a Vitamin E Analogue
Ikuo Nakanishi, Tomonori Kawashima, Kei Ohkubo, Hideko Kanazawa, Keiko Inami, Masataka Mochizuki, Kiyoshi Fukuhara, Haruhiro Okuda, Toshihiko Ozawa, Shinobu Itoh, Shunichi Fukuzumi, and Nobuo Ikota
"Advances in the Research of Vitamin E Volume XII," Japanese Vitamin E Research Association, Japan (2006), pp.11-16.
Radical-Scavenging Activities of 4-Propenylphenol Derivatives and a Vitamin E model
Tomonori Kawashima, Ikuo Nakanishi, Yoshihiro Uto, Kei Ohkubo, Hideko Kanazawa, Kiyoshi Fukuhara, Haruhiro Okuda, Hideko Nagasawa, Hitoshi Hori, Shunichi Fukuzumi, Toshihiko Ozawa, and Nobuo Ikota
"Advances in the Research of Vitamin E Volume XII," Japanese Vitamin E Research Association, Japan (2006), pp.115-120.
Enhanced Radical-Scavenging Activity of Artepillin C Derivatives
Ikuo Nakanishi, Kei Ohkubo, Yoshihiro Uto, Tomonori Kawashima, Sushma Manda, Hideko Kanazawa, Hitoshi Hori, Kiyoshi Fukuhara, Haruhiro Okuda, Toshihiko Ozawa, Nobuo Ikota, Shunichi Fukuzumi, and Kazunori Anzai FASEB J.,21 (6), lb373 (2007).
Effects of Bio-Related Metal Ions on the Radical-Scavenging Reactions by Curcumin
Tomonori Kawashima, Ikuo Nakanishi, Kei Ohkubo, Sushma Manda, Kiyoshi Fukuhara, Haruhiro Okuda, Toshihiko Ozawa, Nobuo Ikota, Kazunori Anzai, and Shunichi Fukuzumi J. Pharm. Soc. Jpn.,127 (Suppl. 2), 76 (2007).
Electron-Transfer Mechanism in the Radical-Scavenging Reaction of Resveratrol
Ikuo Nakanishi, Tomokazu Shimada, Kei Ohkubo, Sushma Manda, Shiro Urano, Haruhiro Okuda, Naoki Miyata, Toshihiko Ozawa, Kazunori Anzai, Shunichi Fukuzumi, Nobuo Ikota, and Kiyoshi Fukuhara Free Radical Biol. Med.,43 (S1), S17 (2007).
Intramolecular Base-Accelerated Radical-Scavenging Reaction of a Planar Catechin Derivative Having a Lysine Moiety
Kiyoshi Fukuhara, Ikuo Nakanishi, Miki Obara, Kei Ohkubo, Tomonori Kawashima, Toshihiko Ozawa, Nobuo Ikota, Kazunori Anzai, Shunichi Fukuzumi, Naoki Miyata, Shinichi Saito, and Haruhiro Okuda Free Radical Biol. Med.,43 (S1), S96 (2007).
Radical-Scavenging Rates of Biosynthetic Precursors of Vitamin E and Their Acyclic Analogues
Ikuo Nakanishi, Yoshihiro Uto, Kei Ohkubo, Tadashi Shirai, Eiji Nakata, Hideko Nagasawa, Hitoshi Hori, Shunichi Fukuzumi, Toshihiko Ozawa, and Kazunori Anzai J. Clin. Biochem. Nutr.,41 (Supplement), 140 (2007).
Effect of Methyl Substitution of Antioxidative Properties and Genotoxicity of Resveratrol
Kiyoshi Fukuhara, Ikuo Nakanishi, Atsuko Matsuoka, Toshihiko Ozawa, Naoki Miyata, Nobuo Ikota, and Haruhiro Okuda J. Clin. Biochem. Nutr.,41 (Supplement), 155 (2007).
Effect of Metal Ions on the Radical-Scavenging Rates of Hydroquinones
Ikuo Nakanishi, Yoshihiro Uto, Kei Ohkubo, Tadashi Shirai, Eiji Nakata, Sushma Manda, Hideko Nagasawa, Hitoshi Hori, Kiyoshi Fukuhara, Haruhiro Okuda, Nobuo Ikota, Shunichi Fukuzumi, Kazunori Anzai, and Toshihiko Ozawa J. Pharm. Soc. Jpn.,128 (Suppl. 1), 71 (2008).
Scavenging Reactions of Free Radicals by Propenylphenol Compounds
Tomonori Kawashima, Ikuo Nakanishi, Yoshihiro Uto, Kei Ohkubo, Keiko Suzuki, Sushma Manda, Hideko Kanazawa, Kiyoshi Fukuhara, Haruhiro Okuda, Hideko Nagasawa, Hitoshi Hori, Shunichi Fukuzumi, Kazunori Anzai, Toshihiko Ozawa, and Nobuo Ikota
"Proceeding of the 6th Meeting of Society of the Study of AOB (Antioxidant Biofactor)," (2008), pp.20-23.
Structure-Activity Relationship in Radical-Scavenging Reactions of Naturally-Oriented Artepillin C Derivatives
Ikuo Nakanishi, Yoshihiro Uto, Kei Ohkubo, Tomonori Kawashima, Sushma Manda, Ken-ichiro Matsumoto, Hitoshi Hori, Kiyoshi Fukuhara, Haruhiro Okuda, Nobuo Ikota, Shunichi Fukuzumi, Toshihiko Ozawa, and Kazunori Anzai Prog. Biochem. Biophys.,35 (Suppl), 290 (2008).
Free Radical Reactions in an Aqueous Sample Caused by Heavy-Ion (Carbon) Beam Irradiation
Ken-ichiro Matsumoto, Ikuo Nakanishi, Kazutoyo Endo, and Kazunori Anzai Free Radical Biol. Med.,45 (S1), S20 (2008).
One-Step Hydrogen Atom Transfer in Radical-Scavenging Reactions by Artepillin C Derivatives Enhanced by Electron-Donating Groups
Ikuo Nakanishi, Kei Ohkubo, Yoshihiro Uto, Tomonori Kawashima, Sushma Manda, Kiyoshi Fukuhara, Haruhiro Okuda, Hitoshi Hori, Nobuo Ikota, Shunichi Fukuzumi, Toshihiko Ozawa, and Kazunori Anzai Free Radical Biol. Med.,45 (S1), S63 (2008).
Synthesis and Radical-Scavenging Activity of Vitamin E Derivatives Having a Basic Moiety
Ikuo Nakanishi, Tomonori Kawashima, Haruko Yakumaru, Minako Nyui, Kei Ohkubo, Hideko Kanazawa, Kiyoshi Fukuhara, Haruhiro Okuda, Shunichi Fukuzumi, Toshihiko Ozawa, Nobuo Ikota, Kazunori Anzai
"Advances in the Research of Vitamin E Volume XIII," Japanese Vitamin E Research Association, Japan (2009), pp.7-10.
Radical-Scavenging Rates of Biosynthetic Precursors of Vitamin E and Their Acyclic Analogues
Ikuo Nakanishi, Yoshihiro Uto, Kei Ohkubo, Tadashi Shirai, Eiji Nakata, Hideko Nagasawa, Hitoshi Hori, Kiyoshi Fukuhara, Haruhiro Okuda, Nobuo Ikota, Shunichi Fukuzumi, Toshihiko Ozawa, and Kazunori Anzai
"Advances in the Research of Vitamin E Volume XIII," Japanese Vitamin E Research Association, Japan (2009), pp.83-87.
Structure-Activity Relationship in Radical-Scavenging Reactions of Naturally-Oriented Artepillin C Derivatives
Ikuo Nakanishi, Yoshihiro Uto, Kei Ohkubo, Tomonori Kawashima, Sushma Manda, Ken-ichiro Matsumoto, Hitoshi Hori, Kiyoshi Fukuhara, Haruhiro Okuda, Nobuo Ikota, Shunichi Fukuzumi, Toshihiko Ozawa, and Kazunori Anzai
"XIV Biennial Meeting of the Society for Free Radical Research International," International Proceedings, Medimond, Italy (2009), pp.125-128.
Development of Novel Scavengers against Reactive Oxygen Species and Free Radicals by Chemical Modification of Natural Antioxidants
Ikuo Nakanishi Radiological Sciences,52 (5), 17-19 (2009).
Synthesis of Conformationally Constrained Epigallocatechin Analogue as a Promising Antioxidant
Kohei Imai, Ikuo Nakanishi, Kazunori Anzai, Toshihiko Ozawa, Haruhiro Okuda, Asao Nakamura, and Kiyoshi Fukuhara Free Radical Biol. Med.,49 (S1), S185 (2010). DOI: 10.1016/j.freeradbiomed.2010.10.529
Electron Transfer from Stable Superoxide Complex to Electron Acceptors as Benzoquinone Derivatives
Tomonori Kawashima, Kei Ohkubo, Shunichi Fukuzumi, and Ikuo Nakanishi Free Radical Biol. Med.,49 (S1), S211 (2010). DOI: 10.1016/j.freeradbiomed.2010.10.614
Reaction of Nitroxyl Radicals and GSH; pH Dependece
Ken-ichiro Matsumoto, Ikuo Nakanishi, and Murali C Krishna Free Radical Biol. Med.,49 (S1), S212 (2010). DOI: 10.1016/j.freeradbiomed.2010.10.619
Electron-Transfer Properties of the Phenolate Anion Derived from a Vitamin E Model in the Presence of a Strong Base in an Aprotic Medium
Ikuo Nakanishi, Kei Ohkubo, Tomonori Kawashima, Keiko Inami, Ken-ichiro Matsumoto, Kiyoshi Fukuhara, Haruhiro Okuda, Masataka Mochizuki, Shunichi Fukuzumi, Toshihiko Ozawa, and Kazunori Anzai Free Radical Biol. Med.,49 (S1), S213-S214 (2010). DOI: 10.1016/j.freeradbiomed.2010.10.623
Radical-Scavenging Activity of 6-Chromanol Derivatives with Various Substituents
Ikuo Nakanishi, Keiko Inami, Kei Ohkubo, Tomonori Kawashima, Kiyoshi Fukuhara, Shunichi Fukuzumi, Kazunori Anzai, Toshihiko Ozawa, Masataka Mochizuki, and Ken-ichiro Matsumoto Free Radical Biol. Med.,51 (S), S93 (2011). DOI: 10.1016/j.freeradbiomed.2011.10.455
Efficient Method for Hydroxyl Radical Scavenging Activity of Antioxidants
Ken-ichiro Matsumoto and Ikuo Nakanishi Free Radical Biol. Med.,51 (S), S147 (2011). DOI: 10.1016/j.freeradbiomed.2011.10.251
A W A R D S
Highlight Poster (March, 2000) The 120th Annual Meeting of the Pharmaceutical Society of Japan, Gifu, Japan
SFRR Japan Young Investigator Award 2006 (August 18, 2006) 13th Biennial Congress of the Society for Free Radical Research International (SFRRI), Davos, Switzerland
Poster Award (November 30, 2007) International Conference on Food Factors for Health Promotion (ICoFF2007), Kyoto, Japan
Highlight Poster (March, 2008) The 128th Annual Meeting of the Pharmaceutical Society of Japan, Yokohama, Japan
Young Investigator Award (October 2, 2008) The 47th Annual Meeting of the Society of Electron Spin Science and Technology (SEST), Fukuoka, Japan