Zobrazeno 1 - 10
of 498
pro vyhledávání: '"T, Sofuni"'
Autor:
Madoka Nakajima, Takeshi Morita, Makoto Hayashi, Kaoru Morikawa, David Tweats, T. Sofuni, Noriho Tanaka
Publikováno v:
Regulatory Toxicology and Pharmacology. 55:52-68
The Globally Harmonized System of Classification and Labeling of Chemicals (GHS) requires classification of chemicals on germ cell mutagenicity. The Japanese government has conducted GHS classification on about 1400 chemicals in a 2-year project (J-G
Autor:
Leonard M. Schechtman, James T. MacGregor, David Kirkland, Lutz Müller, M. Hayashi, T. Sofuni
Publikováno v:
Environmental and Molecular Mutagenesis. 35:162-166
Autor:
Satoshi Kitajima, Makoto Hayashi, Yasushi Kawasaki, Isama K, Y. Ohno, Tsuda M, Yoshihiro Ogawa, Y. Matsushima, Takashi Umemura, Tohru Inoue, Momma J, M Saitoh, R. Hasegawa, T. Sofuni, T. Suzuki, Yuji Kurokawa, K. Sakemi
Publikováno v:
Food and Chemical Toxicology. 37:777-787
2-Mercaptobenzimidazole (2-MBI), a rubber antioxidant, is known to exhibit potent antithyroid toxicity in rats and is a candidate as an environmental endocrine disrupter. 2-Mercaptomethylbenzimidazoles (a 1:1 mixture of 4-methyl and 5-methyl isomers,
Autor:
Sadayoshi Kobayashi, H Sakamoto, Mayumi Nishimura, Toshihiko Sado, Toshiaki Ogiu, A Matsuoka, T Sofuni, F Suzuki, Yoshiya Shimada, M. Hayashi
Publikováno v:
International Journal of Radiation Biology. 72:537-545
In the present study, acute effects of ionizing radiation on animal survival, bone marrow cells and fibroblast cell lines of scid homozygous, scid heterozygous and wild-type mice with the same C.B-17 genetic background were examined. The sensitivitie
Publikováno v:
Mutagenesis. 11:565-572
Steviol is the aglycone of stevioside, a non-caloric sugar substitute commonly used in Japan. Steviol strongly induces mutations at the guanine phosphoribosyltransferase gene (gpt) of Salmonella typhimurium TM677 when the metabolic activation system
Publikováno v:
Journal of Bacteriology. 177:1511-1519
Escherichia coli has two O6-methylguanine DNA methyltransferases that repair alkylation damage in DNA and are encoded by the ada and ogt genes. The ada gene of E. coli also regulates the adaptive response to alkylation damage. The closely related spe
Autor:
G.M. Landes, J.M. Bishop, J. Louhimo, M.L. Freeman, S.S. Kakar, K. Sudo, P. Kunapuli, X. Li, M.R.S. Krishnamani, M.E. Curran, H. Hayes, D.C. Ward, K.W. Gripp, R. Iida, L.A. Pérez Jurado, N. Hayashi, M. Amagai, U. Francke, D. Nadano, M.L. Summar, K. Omoe, M. Aronson, H. Nagase, T. Ishida, K. Ohata, S.C. Maric, B. Dutrillaux, F. Apiou, D.F. Callen, D.W. Bell, G. Goubin, Y. Nakamura, E. Takahashi, B. Schlegelberger, P.N. Tsichlis, H. Hameister, C. Van Broeckhoven, J. Kudoh, E.L.D. Mitchell, E. Sierra-Rivera, S.M. Gartler, M. Schertzer, M. Ogawa, J.L. Benovic, H. Mizusawa, H. Sugawara, C.A. Griffin, N.A. Jenkins, S. Shin, H.L. Grimes, C.I. Civin, M. Yerle, S. Hoyer-Fender, K. Chinen, E. Shtivelman, H. Arakawa, L.A. Cannizzaro, K. Kishi, J.M. Varley, L. Pibouin, H. Yasue, F. Bullrich, Y.-J. Chen, J. Lasota, E.P. Cribiu, M.F. Santibanez Koref, G.R.M. White, S.A. Lane, T. Itoh, D.J. Gilbert, Y. Murakami, J.R. Testa, D. Jones, O.A. Jänne, W. Grote, M.L. Yaremko, M. Poetsch, H. Takeshita, E. Kim, T. Yasuda, T. Sofuni, T. Druck, J.M. Delabar, S. Ueda, T. Eki, N. Shimizu, K. Weber-Matthiesen, C.B. Gilks, K. Huebner, C. Le Chalony, D. Small, N.G. Copeland, H. Ishikawa, A. Endo, P. Burfeind, M. Ohki, Y. Lahbib-Mansas, J. Deerberg, Y. Sakaki, M.T. Keating, H. Tanabe, H.D. Webb, E.Y. Cheng, Y. Wang, C.E. Carow, E.W. Jabs, J. Gellin, T. Nishikawa, A. Milatovich, M. Nagata, T. Fujiwara, S. Suwa, S. Minoshima, J.A. Phillips, T. Hashimoto, S. Wood, M. Dasouki, A.L. Hawkins, F. Claro, R. Peoples, A. Crozat, T. Taguchi, M. Banzai, S. Antonarakis, J. Gomez, P. Zweidler-McKay, T. Haaf, C. Mellink, D. Patterson, S. Knuutila, J.D. Neill
Publikováno v:
Cytogenetic and Genome Research. 70:I-IV
Publikováno v:
Mutagenesis. 9:151-155
Chromosomal rearrangements in human lymphocytes induced by X-rays (0, 0.5, 1.0 and 2.0 Gray) were analyzed using chromosome painting. DNA probes for human chromosomes 1, 3 or 4 alone, and a combination of 1 and 4, were used for analysis. The frequenc
Publikováno v:
Environmental Health Perspectives
To evaluate chemical safety, many kinds of short-term mutagenicity assays are performed together with long-term assays in animals. Rationales and methodology for these assays have been well discussed and documented. No statistical method, however, ha
Publikováno v:
Journal of Bacteriology. 175:5539-5547
A new method for gene disruption in Salmonella typhimurium was developed. The key steps of this method are to produce restriction fragments with compatible ends, preligate to produce concatemers, and then transform by electrotransformation. We develo