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Paper Abstract and Keywords
Presentation 2007-11-16 13:50
Effects of combined magnetic fields with static and 50Hz on mutagenesis
Masateru Ikehata, Sachiko Yoshie (Railway Tech. Res. Inst.), Yukihisa Suzuki, Masao Taki (Tokyo Metropolitan Univ.), Toshio Hayakawa (Railway Tech. Res. Inst.) EMCJ2007-91
Abstract (in Japanese) (See Japanese page) 
(in English) Mutagenicity of complex exposure to static magnetic field (MF) and 50Hz MF was investigated. We developed a exposure system that can expose biological samples to complex magnetic field with up to 5T static MF and up to 1mT 50Hz MF simultaneously. To investigate the mutagenicity for this complex field, bacterial mutation assay (Ames test) using Salmonella typhimurium TA98 and TA100, and also yeast mutation assay using Saccharomyces cerevisiae XD83 were performed. It was found that gene conversion/recombination frequency in S. cerevisiae XD83 was slightly increased by exposure to complex MF with 5T static and 1mT, 50Hz MF while point mutation frequency in S. cerevisiae and S. typhimurium was not affected. Possible mechanism and evaluation of mutagenicity will be discussed.
Keyword (in Japanese) (See Japanese page) 
(in English) Complex magnetic field / Biological effect / Mutation assay / Bacteria / Yeast / Safety estimation / /  
Reference Info. IEICE Tech. Rep., vol. 107, no. 310, EMCJ2007-91, pp. 57-61, Nov. 2007.
Paper # EMCJ2007-91 
Date of Issue 2007-11-08 (EMCJ) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
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Conference Information
Committee EMCJ  
Conference Date 2007-11-15 - 2007-11-16 
Place (in Japanese) (See Japanese page) 
Place (in English) Tokyo Instutute of Technology 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To EMCJ 
Conference Code 2007-11-EMCJ 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Effects of combined magnetic fields with static and 50Hz on mutagenesis 
Sub Title (in English)  
Keyword(1) Complex magnetic field  
Keyword(2) Biological effect  
Keyword(3) Mutation assay  
Keyword(4) Bacteria  
Keyword(5) Yeast  
Keyword(6) Safety estimation  
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Keyword(8)  
1st Author's Name Masateru Ikehata  
1st Author's Affiliation Railway Technical Research Institute (Railway Tech. Res. Inst.)
2nd Author's Name Sachiko Yoshie  
2nd Author's Affiliation Railway Technical Research Institute (Railway Tech. Res. Inst.)
3rd Author's Name Yukihisa Suzuki  
3rd Author's Affiliation Tokyo Metropolitan University (Tokyo Metropolitan Univ.)
4th Author's Name Masao Taki  
4th Author's Affiliation Tokyo Metropolitan University (Tokyo Metropolitan Univ.)
5th Author's Name Toshio Hayakawa  
5th Author's Affiliation Railway Technical Research Institute (Railway Tech. Res. Inst.)
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Speaker Author-1 
Date Time 2007-11-16 13:50:00 
Presentation Time 25 minutes 
Registration for EMCJ 
Paper # EMCJ2007-91 
Volume (vol) vol.107 
Number (no) no.310 
Page pp.57-61 
#Pages
Date of Issue 2007-11-08 (EMCJ) 


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