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Physicochemical and biochemical study of radiation induced DNA damage

Research Project

Project/Area Number 18310041
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Risk sciences of radiation/Chemicals
Research InstitutionJapan Atomic Energy Agency

Principal Investigator

YOKOYA Akinari  Japan Atomic Energy Agency, 先端基礎研究センター, 研究主幹 (10354987)

Co-Investigator(Kenkyū-buntansha) FUJII Kentaro  独立行政法人日本原子力研究開発機構, 先端基礎研究センター, 研究員 (00360404)
WATANABE Ritsuko  独立行政法人日本原子力研究開発機構, 原子力機構基礎工学部門, 研究副主幹 (10360439)
AKAMATSU Ken  独立行政法人日本原子力研究開発機構, 原子力機構基礎工学部門, 研究副主幹 (70360401)
SHIKAZONO Naoya  独立行政法人日本原子力研究開発機構, 先端基礎研究センター, 研究主幹 (10354961)
URUSHIBARA Ayumi  独立行政法人日本原子力研究開発機構, 先端基礎研究センター, 任期付研究員 (80391275)
NOGUCHI Miho  独立行政法人日本原子力研究開発機構, 先端基礎研究センター, 研究員 (40455283)
Research Collaborator O'NEILL Peter  University of Oxford, Prof.
NIKJOO Hooshang  NASA, Dr.
Project Period (FY) 2006 – 2008
Project Status Completed (Fiscal Year 2008)
Budget Amount *help
¥16,880,000 (Direct Cost: ¥14,300,000、Indirect Cost: ¥2,580,000)
Fiscal Year 2008: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2007: ¥6,760,000 (Direct Cost: ¥5,200,000、Indirect Cost: ¥1,560,000)
Fiscal Year 2006: ¥5,700,000 (Direct Cost: ¥5,700,000)
Keywords放射線生物影響 / クラスターDNA損傷 / LET / 電子常磁性共鳴(EPR) / シンクロトロン放射 / DNA鎖切断 / 塩基損傷 / 塩基除去修復酵素 / ラジカル / グリコシレース / 点突然変異 / 大腸菌 / DNA損傷 / EPR / 塩基除去修復 / 突然変異
Research Abstract

放射線による生物影響の主要な要因のひとつとされる難修復性のDNA多重損傷(クラスターDNA損傷)は、空間電離密度の指標であるLETが100keV/μm以上のイオンビーム照射時に顕著に生じること、さらに大型シンクロトロン放射施設から得られる高いエネルギー分解能の軟X線を用いてDNA分子中の特定元素の内殻電離効果を調べた結果、酸素のK殻励起エネルギーを超えると塩基損傷頻度が増加することを突き止めた。

Report

(4 results)
  • 2008 Annual Research Report   Final Research Report ( PDF )
  • 2007 Annual Research Report
  • 2006 Annual Research Report
  • Research Products

    (109 results)

All 2009 2008 2007 2006 Other

All Journal Article (37 results) (of which Peer Reviewed: 26 results) Presentation (71 results) Book (1 results)

  • [Journal Article] The yield, processing, and biological consequences of clustered DNA(Invited Review)2009

    • Author(s)
      Shikazono N,. Noguchi, M., Fujii, K., Urushibara, A. and Yokoya, A.
    • Journal Title

      J. Radiat. Res. 50

      Pages: 27-36

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Estimation of yields of hydroxyl radicals in water under various energy heavy ions2009

    • Author(s)
      aguchi, M., Kimura, A., Watanabe, R. and Hirota, K.
    • Journal Title

      Radiat. Res. 171

      Pages: 254-263

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Biological dose estimation for charged-particle therapy using an improved PHITS code coupled with a microdosimetric kinetic model2009

    • Author(s)
      Sato, T., Kase, Y., Watanabe, R., Niita, K. and Sihver, L.
    • Journal Title

      Radit. Res. 171

      Pages: 107-117

    • NAID

      130006999149

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] The yield, processing, and biological consequences of clustered DNA damage induced by ionizing radiation. (invited review paper)2009

    • Author(s)
      Naoya Shikazono
    • Journal Title

      Journal of Radiation Research 50

      Pages: 27-36

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] EPR study of radiation damage to DNA irradiated with synchrotron soft X-rays around nitrogen and oxygen K-edge2009

    • Author(s)
      Akinari Yokoya
    • Journal Title

      Radiation Physics and Chemistry (印刷中)

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Synchrotron radiation photoelectron studies for primary radiation effects using a liquid water jet in vacuum : total and partial photoelectron yields for liquid water near the oxygen K-edge2009

    • Author(s)
      Masatoshi Ukai
    • Journal Title

      Radiation Physics and Chemistry (印刷中)

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Induction of DNA strand breaks, base lesions, and clustered damage sites in hydrated plasmid DNA films by ultrasoft X-rays around the phosphorus K-edge2009

    • Author(s)
      Akinari Yokoya
    • Journal Title

      Radiation Research (印刷中)

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Unrepairable DNA damage site composed of clustered lesions along ion particle tracks2008

    • Author(s)
      Yokoya, A., Shikazono, N., Fujii, K., Ushigome, T., Suzuki, M., Urushibara, A. and Watanabe, R.
    • Journal Title

      Proceedings of the 27th Symposium on Materials Science and Engineering Research of Ion Beam Technology (in Hosei Univ.)(Invited paper)

      Pages: 1-8

    • Related Report
      2008 Final Research Report
  • [Journal Article] Studies of soft-X-ray -induced Auger effect on the induction of DNA damage2008

    • Author(s)
      Yokoya, A., Fujii, K., Shikazono, N., Akamatsu, K., Urushibara, A., and Watanabe, R.
    • Journal Title

      Int. J. Radiat. Biol. 84

      Pages: 1069-1081

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Characterization of lesions induced in linear-formed plasmid DNA by valence ionization and Auger decay at carbon, nitrogen and oxygen2008

    • Author(s)
      Akamatsu, K., Fujii, K., and Yokoya, A.
    • Journal Title

      Int. J. Radiat. Biol. 84

      Pages: 1082-1092

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Induction of single strand breaks, and base lesions in plasmid DNA films induced by carbon, nitrogen, and oxygen KLL Auger process2008

    • Author(s)
      Fujii, K., Yokoya, A., and Shikazono, N.
    • Journal Title

      Induction of single strand breaks, and base lesions in plasmid DNA films induced by carbon, nitrogen, and oxygen KLL Auger process 84

      Pages: 1104-1111

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Can Monte Carlo track structure codes Reveal reaction mechanism in DNA damage and improve radiation therapy?2008

    • Author(s)
      Nikjoo, H., Emfietzoglou, D., Watanabe, R. and Uehara, S.
    • Journal Title

      Radiat. Phys. Chem. 77

      Pages: 1270-1279

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] ASR2007 International symposium on "Charged Particle an Photon Interactions with Matter", November 6-9, 2007.2008

    • Author(s)
      Katsumura, Y., Lin, M., Yokoya, A. and Hatano, Y.
    • Journal Title

      Radiat. Phys. Chem. 77

      Pages: 1119-1119

    • Related Report
      2008 Final Research Report
  • [Journal Article] DNA Damage induced by direct effect of radiation(Review)2008

    • Author(s)
      Yokoya, A., Shikazono, N., Fujii, K., Urushibara, A., Akamatsu, K. and Watanabe, R.
    • Journal Title

      Radiat. Phys. Chem. 77

      Pages: 77-77

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] X-ray absorption spectrum for guanosine-5-monophosphate in water solution in the vicinity of the nitrogen K-edge observed in free liquid jet in vacuum2008

    • Author(s)
      Ukai, M., Yokoya, A., Fujii, K. and Saitoh, Y.
    • Journal Title

      Radiat. Phys. Chem. 77

      Pages: 1265-1269

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] LET dependence of the yield of single-, double-strand breaks and base lesions in fully hydrated plasmid DNA films by 4He2+ ion irradiation2008

    • Author(s)
      Urushibara, A., Shikazono, N., O'Neill, P., Fujii, K., Wada, S. and Yokoya, A.
    • Journal Title

      Int. J. Radiat. Biol. 84

      Pages: 23-33

    • Related Report
      2008 Final Research Report
  • [Journal Article] Studies of soft X-ray-induced Auger effect on the induction of DNA damage2008

    • Author(s)
      Akinari Yokoya
    • Journal Title

      International Journal of Radiation Biology 84

      Pages: 1069-1081

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Characterization of lesions induced in linear-formed plasmid DNA by valence ionization and Auger decay at carbon, nitrogen and oxygen2008

    • Author(s)
      Ken Akamatsu
    • Journal Title

      International Journal of Radiation Biology 84

      Pages: 1082-92

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Induction of single strand breaks, and base lesions in plasmid DNA films induced by carbon, nitrogen, and oxygen KLL Auger process2008

    • Author(s)
      Kentaro Fujii
    • Journal Title

      International Journal of Radiation Biology 84

      Pages: 1104-1111

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Unrepairable DNA damage site composed of clustered lesions along ion tracks. (invited review paper)2008

    • Author(s)
      Akinari Yokoya
    • Journal Title

      Proceedings of the 27^<th> symposium on materials science and engneering research center of ion beam technology House University

      Pages: 1-8

    • Related Report
      2008 Annual Research Report
  • [Journal Article] LET dependence of the yield of single,double strand breaks and base lesions in fully hydrated plasmid DNA films by 4He^<2+> ion irxadiation2008

    • Author(s)
      Ayumi Urushibara
    • Journal Title

      International Journal of Radiation Biology 84

      Pages: 23-33

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] DNA Damage induced by direct effect of radiation2008

    • Author(s)
      Akinari Yokoya
    • Journal Title

      Radiation Physics and Chemistry (in press)

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] X-ray Absorption Spectra for Nucleotides in Water solutions near the nitrogen K-edge2008

    • Author(s)
      Masatoshi Ukai
    • Journal Title

      Radiation Physics and Chemistry (in press)

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A novel methodology for characterizing strand-break termini and damaged bases in plasmid DNA exposed to ionizing radiation2007

    • Author(s)
      Ken Akamatsu
    • Journal Title

      Analytical Biochemistry 362(2)

      Pages: 229-235

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Biological effect of clustered DNA damage2006

    • Author(s)
      Shikazono, N., Urushibara, A., Fujii, K. and Yokoya, A.
    • Journal Title

      Radiat. Biol. Res. Comm. 41

      Pages: 409-423

    • Related Report
      2008 Final Research Report
  • [Journal Article] The roles of specific glycosylases in determining the mutagenic consequences of clustered DNA base damage2006

    • Author(s)
      Shikazono, N., Pearson, C., O'Neill, P. and Thacker, J.
    • Journal Title

      Nucleic Acids Res. 34

      Pages: 3730-3738

    • Related Report
      2008 Final Research Report
  • [Journal Article] Yields of strand breaks and base lesions induced by soft X-rays in plasmid DNA2006

    • Author(s)
      Yokoya, A., Fujii, K., Ushigome, T., Shikazono, N., Urushibara, A. and Watanabe, R.
    • Journal Title

      Radiat. Prot. Dosim. 122

      Pages: 86-88

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] DNA damage induced by the direct effect of He ion particles2006

    • Author(s)
      Urushibara, A., Shikazono, N. Watanabe, R., Fujii, K., O'Neill, P. and Yokoya, A.
    • Journal Title

      Radiat. Prot. Dosim. 122

      Pages: 163-165

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Yields of strand breaks and base lesions induced by soft X-rays in plasmid DNA2006

    • Author(s)
      Akinari Yokoya
    • Journal Title

      Radiation Protection Dosimetry 122

      Pages: 86-88

    • Related Report
      2006 Annual Research Report
  • [Journal Article] DNA damage induced by the direct effect of He ion particles2006

    • Author(s)
      Ayumi Urushibara
    • Journal Title

      Radiation Protection Dosimetry 122

      Pages: 163-165

    • Related Report
      2006 Annual Research Report
  • [Journal Article] The roles of specific glycosylases in determining the mutagenic consequences of clustered DNA base damage2006

    • Author(s)
      Naoya Shikazono
    • Journal Title

      Nucleic Acids Research 34(13)

      Pages: 3722-3730

    • Related Report
      2006 Annual Research Report
  • [Journal Article] クラスターDNA損傷の生物効果2006

    • Author(s)
      鹿園 直哉
    • Journal Title

      放射線生物研究 41

      Pages: 409-423

    • NAID

      40015265467

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Processing of thymine glycol in a clustered DNA damage site: mutagenic or cytotoxic

    • Author(s)
      Bellon, S., Shikazono, N., Cunniffe, S., Lomax, M., O'Neill, P.
    • Journal Title

      Nucleic Acids Res. (in press)

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Induction of DNA strand breaks, base lesions and clustered damage sites in hydrated plasmid DNA films by ultrasoft X-rays around the phosphorus K edge

    • Author(s)
      Yokoya, A., Cunniffe, S.M.T., Watanabe, R., Kobayashi, K. and O'Neill, P.
    • Journal Title

      Radiat. Res. (in press)

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] EPR study of radiation damage to DNA irradiated with synchrotron soft X-rays around nitrogen and oxygen K-edge

    • Author(s)
      Yokoya, A., Fujii, K., Fukuda, Y. and Ukai, M.
    • Journal Title

      Radiat. Phys. Chem. (in press)

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Spectral change in X-ray absorption near edge structure of DNA thin films irradiated with monochromatic soft X-rays

    • Author(s)
      Fujii, K. and Yokoya, A.
    • Journal Title

      Radiat. Phys. Chem. (in press)

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Synchrotron radiation photoelectron studies for primary radiation effects using a liquid water jet in vacuum: total and partial photoelectron yields for liquid water near the oxygen K-edge

    • Author(s)
      Ukai, M., Yokoya, A., Nonaka, Y., Fujii, K. and Saitoh, Y.
    • Journal Title

      Radiat. Phys. Chem. (in press)

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Presentation] イオンビームにより誘発される難修復性のクラスターDNA損傷2008

    • Author(s)
      横谷明徳
    • Organizer
      第27回法政大学イオンビーム工学研究所シンポジウム
    • Place of Presentation
      法政大学、小金井(招待講演)
    • Year and Date
      2008-12-10
    • Related Report
      2008 Final Research Report
  • [Presentation] イオンビームにより誘発される難修復性のクラスターDNA損傷(招待講演)2008

    • Author(s)
      横谷明徳
    • Organizer
      第27回法政大学イオンビーム工学研究所シンポジウム
    • Place of Presentation
      小金井
    • Year and Date
      2008-12-10
    • Related Report
      2008 Annual Research Report
  • [Presentation] 放射線によるゲノム損傷とその生体修復のせめぎあい2008

    • Author(s)
      横谷明徳
    • Organizer
      第11回茨城大学イブニングセミナー
    • Place of Presentation
      茨城大学、水戸(招待講演)
    • Year and Date
      2008-10-23
    • Related Report
      2008 Final Research Report
  • [Presentation] 放射線によるゲノム損傷とその生体修復のせめぎあい(招待講演)2008

    • Author(s)
      横谷明徳
    • Organizer
      第11回茨城大学イブニングセミナー
    • Place of Presentation
      水戸
    • Year and Date
      2008-10-23
    • Related Report
      2008 Annual Research Report
  • [Presentation] DNA損傷と放射線生物影響2008

    • Author(s)
      横谷明徳
    • Organizer
      平成20年度弥生研究会~放射線化学とその周辺から~
    • Place of Presentation
      東京大学東海村キャンパス、東海村、茨城県
    • Year and Date
      2008-07-29
    • Related Report
      2008 Final Research Report
  • [Presentation] クラスターDNA損傷による突然変異誘発2008

    • Author(s)
      鹿園 直哉
    • Organizer
      平成20年度弥生研究会~放射線化学とその周辺から~
    • Place of Presentation
      東京大学東海村キャンパス、東海村、茨城県
    • Year and Date
      2008-07-29
    • Related Report
      2008 Final Research Report
  • [Presentation] プラスミドDNAに対する高LET放射線による非DSB性多重SSB誘発の可能性2008

    • Author(s)
      横谷明徳
    • Organizer
      日本放射線影響学会第51回大会
    • Place of Presentation
      北九州国際会議場、北九州
    • Related Report
      2008 Final Research Report
  • [Presentation] 鎖切断と脱塩基部位からなるクラスターDNA損傷の生物効果2008

    • Author(s)
      鹿園直哉
    • Organizer
      日本放射線影響学会第51回大会
    • Place of Presentation
      北九州国際会議場、北九州
    • Related Report
      2008 Final Research Report
  • [Presentation] 非二本鎖切断型クラスター損傷(8-oxoG と鎖切断)の突然変異誘発2008

    • Author(s)
      野口実穂
    • Organizer
      日本放射線影響学会第51回大会
    • Place of Presentation
      北九州国際会議場、北九州
    • Related Report
      2008 Final Research Report
  • [Presentation] 軟X線照射によって乾燥プラスミドDNAに生じる分子損傷の収率2008

    • Author(s)
      藤井健太郎
    • Organizer
      第51回放射線化学討論会
    • Place of Presentation
      産業技術総合研究所、つくば市
    • Related Report
      2008 Final Research Report
  • [Presentation] 放射線により誘発されるDNA損傷の空間分布と難修復性2008

    • Author(s)
      横谷明徳
    • Organizer
      第3回高崎量子応用研究シンポジウム
    • Place of Presentation
      高崎シティーギャラリー、高崎(招待講演)
    • Related Report
      2008 Final Research Report
  • [Presentation] 軟X線によってDNA分子内に生じるサイト選択的分子変化2008

    • Author(s)
      藤井健太郎
    • Organizer
      第2回分子科学討論会
    • Place of Presentation
      福岡国際会議場、福岡
    • Related Report
      2008 Final Research Report
  • [Presentation] 微視的エネルギー付与分布と生物影響2008

    • Author(s)
      渡辺立子
    • Organizer
      京都大学原子炉専門研究会「放射線影響量と生物影響の新概念-細胞内の線量分布と生物影響-
    • Place of Presentation
      京都大学原子炉研究所、熊取(招待講演)
    • Related Report
      2008 Final Research Report
  • [Presentation] EPR Study of radiation damage to DNA irradiated with synchrotron soft X-rays around nitrogen and oxygen K-edge2008

    • Author(s)
      A. Yokoya
    • Organizer
      The 2nd Asia-Pacific Symposium on Radiation Chemistry (APSRC-2008)
    • Place of Presentation
      Tokyo, Japan
    • Related Report
      2008 Final Research Report
  • [Presentation] A quantitative analysis of the yield of radiation-induced DNA strand breaks in hydrated plasmids2008

    • Author(s)
      N. Shikazono
    • Organizer
      The 2nd Asia-Pacific Symposium on Radiation Chemistry (APSRC-2008)
    • Place of Presentation
      Tokyo, Japan
    • Related Report
      2008 Final Research Report
  • [Presentation] Spectral change in X-ray absorption near edge structure of DNA thin films irradiated with monochromatic soft X-rays2008

    • Author(s)
      K. Fujii
    • Organizer
      The 2nd Asia-Pacific Symposium on Radiation Chemistry (APSRC-2008)
    • Place of Presentation
      Tokyo, Japan
    • Related Report
      2008 Final Research Report
  • [Presentation] Lethality and mutagenesis of E. coli cells irradiated with soft X-rays2008

    • Author(s)
      T. Suzaka
    • Organizer
      The 2nd Asia-Pacific Symposium on Radiation Chemistry (APSRC-2008)
    • Place of Presentation
      Tokyo, Japan
    • Related Report
      2008 Final Research Report
  • [Presentation] A novel technique using DNA denaturation to detect prompt and enzymatically induced single strand breaks produced in a clustered damage site2008

    • Author(s)
      A. Yokoya
    • Organizer
      The 10th International Workshop on Radiation Damage to DNA
    • Place of Presentation
      Urabandai, Fukushima, Japan
    • Related Report
      2008 Final Research Report
  • [Presentation] DNA damage spectra in ultrasoft X-ray region: effect of inner-shell ionization of carbon, nitrogen and oxygen atoms on the damage induction2008

    • Author(s)
      K. Fujii
    • Organizer
      The 10th International Workshop on Radiation Damage to DNA
    • Place of Presentation
      Urabandai, Fukushima, Japan
    • Related Report
      2008 Final Research Report
  • [Presentation] Mutagenic potential of 8-oxo-7,8-dihydroguanine depends on the location of a single strand break within a cluster2008

    • Author(s)
      M. Noguchi
    • Organizer
      10th International Workshop on Radiation Damage to DNA
    • Place of Presentation
      Urabandai, Fukushima, Japan
    • Related Report
      2008 Final Research Report
  • [Presentation] Processing of clustered DNA damage site in escherichia coli2008

    • Author(s)
      N. Shikazono
    • Organizer
      The 10th International Workshop on Radiation Damage to DNA
    • Place of Presentation
      Urabandai, Fukushima, Japan
    • Related Report
      2008 Final Research Report
  • [Presentation] A novel technique using DNA denaturation to detect prompt and enzymatically induced single strand breaks produced in a clustered damage site2008

    • Author(s)
      Akinari Yokoya
    • Organizer
      10th International Workshop on Radiation Damage to DNA
    • Place of Presentation
      福島
    • Related Report
      2008 Annual Research Report
  • [Presentation] DNA Damage Spectra in Ultrasoft X-ray Region : Effect of Inner-shell Ionization of Carbon, Nitrogen and Oxygen Atoms on the Damage Induction (selected oral presentation)2008

    • Author(s)
      Kentaro Fujii
    • Organizer
      10th International Workshop on Radiation Damage to DNA
    • Place of Presentation
      福島
    • Related Report
      2008 Annual Research Report
  • [Presentation] Mutagenic Potential of 8-Oxo-7,8-dihydroguanine Depends on the Location of a Single Strand Break within a Cluster2008

    • Author(s)
      Miho Noguchi
    • Organizer
      10th International Workshop on Radiation Damage to DNA
    • Place of Presentation
      福島
    • Related Report
      2008 Annual Research Report
  • [Presentation] Processing of Clustered DNA Damage Site in Escherichia coli2008

    • Author(s)
      Naoya Shikazono
    • Organizer
      10th International Workshop on Radiation Damage to DNA
    • Place of Presentation
      福島
    • Related Report
      2008 Annual Research Report
  • [Presentation] A photoelectron study for DNA and its damages in solution using monochoromatic soft X-ray synchrotron radiation : Total and partial yields of photoelectrons for water and nucleotides2008

    • Author(s)
      Masatoshi Ukai
    • Organizer
      10th International Workshop on Radiation Damage to DNA
    • Place of Presentation
      福島
    • Related Report
      2008 Annual Research Report
  • [Presentation] EPR Study of radiation damage to DNA irradiated with synchrotron soft X-rays around nitrogen and oxygen K-edge2008

    • Author(s)
      Akinari Yokoya
    • Organizer
      The 2nd Asia-Pacific Symposium on Radiation Chemistry (APSRC-2008)
    • Place of Presentation
      東京
    • Related Report
      2008 Annual Research Report
  • [Presentation] A quantitative analysis of the yield of radiation-induced DNA strand breaks in hydrated plasmids2008

    • Author(s)
      Naoya Shikazono
    • Organizer
      The 2nd Asia-Pacific Symposium on Radiation Chemistry (APSRC-2008)
    • Place of Presentation
      東京
    • Related Report
      2008 Annual Research Report
  • [Presentation] Spectral Change in X-ray Absorption Near Edge Structure of DNA Thin Films Irradiated with Monochromatic Soft X-rays2008

    • Author(s)
      Kentaro Fujii
    • Organizer
      The 2nd Asia-Pacific Symposium on Radiation Chemistry (APSRC-2008)
    • Place of Presentation
      東京
    • Related Report
      2008 Annual Research Report
  • [Presentation] Lethality and Mutagenesis of E. coli Cells Irradiated with Soft X-rays2008

    • Author(s)
      Takeshi Suzaka
    • Organizer
      The 2nd Asia-Pacific Symposium on Radiation Chemistry (APSRC-2008)
    • Place of Presentation
      東京
    • Related Report
      2008 Annual Research Report
  • [Presentation] Synchrotron radiation photoelectron studies for primary radiation effects in bio-solutions : Electron spectra for liquid water and absorption spectra for nucleotides in the soft X-ray region2008

    • Author(s)
      Masatoshi Ukai
    • Organizer
      The 2nd Asia-Pacific Symposium on Radiation Chemistry (APSRC-2008)
    • Place of Presentation
      東京
    • Related Report
      2008 Annual Research Report
  • [Presentation] 鎖切断と脱塩基部位からなるクラスターDNA損傷の生物効果2008

    • Author(s)
      鹿園直哉
    • Organizer
      日本放射線影響学会第51回大会
    • Place of Presentation
      北九州
    • Related Report
      2008 Annual Research Report
  • [Presentation] 非二本鎖切断型クラスター損傷(8-oxoGと鎖切断)の突然変異誘発2008

    • Author(s)
      野口実穂
    • Organizer
      日本放射線影響学会第51回大会
    • Place of Presentation
      北九州
    • Related Report
      2008 Annual Research Report
  • [Presentation] プラスミドDNAに対する高LET放射線による非DSB性多重SSB誘発の可能性2008

    • Author(s)
      横谷明徳
    • Organizer
      日本放射線影響学会第51回大会
    • Place of Presentation
      北九州
    • Related Report
      2008 Annual Research Report
  • [Presentation] 軟X線照射によって乾燥プラスミドDNAに生じる分子損傷の収率2008

    • Author(s)
      藤井健太郎
    • Organizer
      第51回放射線化学討論会
    • Place of Presentation
      つくば
    • Related Report
      2008 Annual Research Report
  • [Presentation] 放射線により誘発されるDNA損傷の空間分布と難修復性(招待講演)2008

    • Author(s)
      横谷明徳
    • Organizer
      第3回高崎量子応用研究シンポジウム
    • Place of Presentation
      高崎
    • Related Report
      2008 Annual Research Report
  • [Presentation] 非2本鎖切断型クラスター損傷(8-oxoG と鎖切断)の突然変異誘発2007

    • Author(s)
      野口実穂
    • Organizer
      放射線影響学会
    • Place of Presentation
      幕張メッセ
    • Related Report
      2008 Final Research Report
  • [Presentation] 8-oxoGとDHTからなるクラスターDNA損傷のプロセシング経路2007

    • Author(s)
      鹿園直哉
    • Organizer
      放射線影響学会
    • Place of Presentation
      幕張メッセ
    • Related Report
      2008 Final Research Report
  • [Presentation] 放射線によりプラスミドDNAの両鎖に生じた非DSB性多重SSBのDNAの変性を利用した新しい定量法2007

    • Author(s)
      横谷明徳
    • Organizer
      放射線影響学会
    • Place of Presentation
      幕張メッセ
    • Related Report
      2008 Final Research Report
  • [Presentation] 放射光単色軟X線によりDNA中に生じる主鎖切断収量及び修復酵素をプローブとして用いた塩基損傷の定量2007

    • Author(s)
      藤井健太郎
    • Organizer
      放射線化学討論会
    • Place of Presentation
      京都大学宇治キャンパス
    • Related Report
      2008 Final Research Report
  • [Presentation] DNAプリン塩基中の酸素及び窒素K殻励起により生じる短寿命のラジカルのEPR測定2007

    • Author(s)
      横谷明徳
    • Organizer
      第20回日本放射光学会年会・放射光科学合同シンポジウム
    • Place of Presentation
      広島
    • Related Report
      2008 Final Research Report
  • [Presentation] DNA damage induced by direct effect of radiation2007

    • Author(s)
      A. Yokoya
    • Organizer
      The 7th International Symposium on Advanced Science Research: Charged Particle and Photon Interaction with Matter
    • Place of Presentation
      JAEA-Tokai, Ibaraki, Japan (Invited paper)
    • Related Report
      2008 Final Research Report
  • [Presentation] Biological consequences of bistanded clustered DNA damage in Escherichia coli2007

    • Author(s)
      N. Shikazono
    • Organizer
      The 7th International Symposium on Advanced Science Research: Charged Particle and Photon Interaction with Matter
    • Place of Presentation
      JAEA-Tokai, Ibaraki, Japan
    • Related Report
      2008 Final Research Report
  • [Presentation] Mutagenic potential of non-DSB clustered damage containing 8-oxoG and single strand break2007

    • Author(s)
      M. Noguchi
    • Organizer
      The 7th International Symposium on Advanced Science Research: Charged Particle and Photon Interaction with Matter
    • Place of Presentation
      JAEA-Tokai, Ibaraki, Japan
    • Related Report
      2008 Final Research Report
  • [Presentation] Strand breaks and base lesions in dry plasmid DNA films induced by monochromatic ultrasoft X-rays2007

    • Author(s)
      K. Fujii
    • Organizer
      The 7th International Symposium on Advanced Science Research: Charged Particle and Photon Interaction with Matter
    • Place of Presentation
      JAEA-Tokai, Ibaraki, Japan
    • Related Report
      2008 Final Research Report
  • [Presentation] Mutagenic potential of clustered DNA damage site in Escherichia coli2007

    • Author(s)
      N. Shikazono
    • Organizer
      The 13th International Congress of Radiation Research
    • Place of Presentation
      San Francisco, USA
    • Related Report
      2008 Final Research Report
  • [Presentation] A novel technique using DNA denaturation to analyze clustered DNA damage sites induced by densely ionizing radiation2007

    • Author(s)
      A. Yokoya
    • Organizer
      The 13th International Congress of Radiation Research
    • Place of Presentation
      San Francisco, USA
    • Related Report
      2008 Final Research Report
  • [Presentation] Induction of strand breaks and base lesions in dry plasmid DNA films induced by 270-560 eV ultrasoft X-rays2007

    • Author(s)
      K. Fujii
    • Organizer
      The 13th International Congress of Radiation Research
    • Place of Presentation
      San Francisco, USA
    • Related Report
      2008 Final Research Report
  • [Presentation] Studies of soft-X-rayinduced Auger effect on the induction of DNA damage2007

    • Author(s)
      A. Yokoya
    • Organizer
      The 6th Auger Symposium -An International Symposium on Physical, Molecular, Cellular and Medical Aspects of Auger Processes
    • Place of Presentation
      Boston, USA. (Invited paper)
    • Related Report
      2008 Final Research Report
  • [Presentation] Induction of strand breaks, base lesions, and clustered damage in dry plasmid DNA films induced by carbon, nitrogen and oxygen KLL Auger process2007

    • Author(s)
      K. Fujii
    • Organizer
      The 6th Auger Symposium - An International Symposium on Physical, Molecular, Cellular and Medical Aspects of Auger Processes
    • Place of Presentation
      Boston, USA
    • Related Report
      2008 Final Research Report
  • [Presentation] Auger and photoelectron effects on strand breaks and base lesions in plasmid DNA irradiated with ultrasoft X-rays2007

    • Author(s)
      K. Akamatsu
    • Organizer
      The 6th Auger Symposium- An International Symposium on Physical, Molecular, Cellular and Medical Aspects of Auger Processes
    • Place of Presentation
      Boston, USA
    • Related Report
      2008 Final Research Report
  • [Presentation] Studies of sof-X-ray-induced Auger effect on the induction of DNA damage(招待講演)2007

    • Author(s)
      Akinari Yokoya
    • Organizer
      6th Auger Symposium:An International Symposium on Physical, Molecular, Cellular, and Medical Aspects of Auger Processes
    • Place of Presentation
      Boston,USA
    • Related Report
      2007 Annual Research Report
  • [Presentation] Induction of strand breaks, base lesions,and clustered damage in dry plasmid DNA films induced by carbon,nitrogen and oxygen KLL Auger process2007

    • Author(s)
      Kentaro Fuju
    • Organizer
      6th Auger Symposium:An International Symposium on Physical, Molecular, Cellular, and Medical Aspects of Auger Processes
    • Place of Presentation
      Boston,USA
    • Related Report
      2007 Annual Research Report
  • [Presentation] Auger a0 photo-electron effects on strand breaks and base lesions in plasmid DNA irradiates with ultrasoft X-rays2007

    • Author(s)
      Ken Akamatsu
    • Organizer
      6th Auger Symposium:An International Symposium on Physical, Molecular, Cellular, and Medical Aspects of Auger Processes
    • Place of Presentation
      Boston,USA
    • Related Report
      2007 Annual Research Report
  • [Presentation] A novel technique using DNA denaturation to analyze clustered DNA damage sitesuiduced by densely ionizing radiation2007

    • Author(s)
      Akinari Yokoya
    • Organizer
      13th International Congress of Radiation Research
    • Place of Presentation
      San Fransisco,USA
    • Related Report
      2007 Annual Research Report
  • [Presentation] Mutagenic potential ofclustered DNA damage site in Escherschia coli2007

    • Author(s)
      Naoya Shikazono
    • Organizer
      13th International Congress of Radiation Research
    • Place of Presentation
      San Fraasisco,USA
    • Related Report
      2007 Annual Research Report
  • [Presentation] Induction of strand breaks and base lesions in dry plasmid DNA films unduced by 270-560eV ultrasoft X-rays2007

    • Author(s)
      Kentaro Fujii
    • Organizer
      13th Ihtemational Congress of Radiation Research
    • Place of Presentation
      San Fransisco,USA
    • Related Report
      2007 Annual Research Report
  • [Presentation] DNA damage induced by direct effect of radiation2007

    • Author(s)
      Akinari Yokoya
    • Organizer
      the 7th International Symposium on Advanced Science Research;Charged Particle and Photon Interaction with Matter
    • Place of Presentation
      東海村(日本原子力研究開発機構),茨城県
    • Related Report
      2007 Annual Research Report
  • [Presentation] Biologcal consequences of bistanded clustered DNA damage in Escherichia coli2007

    • Author(s)
      Miho Noguchi
    • Organizer
      The 7th International Symposium on Advanced Science Research;Charged Particle and Photon Interaction Kith Matter
    • Place of Presentation
      東海村(日本原子力研究開発機溝),茨城県
    • Related Report
      2007 Annual Research Report
  • [Presentation] Mutagenic Potential of non-DSB clustered damage containing 8-oxoG and single strand break2007

    • Author(s)
      Naoya Shikazono
    • Organizer
      The 7th International Symposium on Advanced Science Research;Charged Particle and Photon Interaction Kith Matter
    • Place of Presentation
      東海村(日本原子力研究開発機溝),茨城県
    • Related Report
      2007 Annual Research Report
  • [Presentation] Strand breaks and base lesions in dry plasmid DNA dims induced by monochromaticuitrasoft X-rays2007

    • Author(s)
      Kentaro Fujii
    • Organizer
      The 7th International Symposium on Advanced Science Research;Charged Particle and Photon Interaction with Matter
    • Place of Presentation
      東海村(日本原子力研究開発機溝),茨城県
    • Related Report
      2007 Annual Research Report
  • [Presentation] 放射光単色軟X線によりDNA中に生じる主鎖切断収量及び修復酵素をプローブとして用いた堪基損傷の定量2007

    • Author(s)
      藤井 健太郎
    • Organizer
      第50回放射線化学討論会
    • Place of Presentation
      宇治市(京都大学),京都府
    • Related Report
      2007 Annual Research Report
  • [Presentation] 8-oxoGとDHTからなるクラスターDNA損傷のプロセシング経路2007

    • Author(s)
      鹿園 直哉
    • Organizer
      日本放射線影響学会第50回大会
    • Place of Presentation
      千葉市(幕張メッセ),千葉県
    • Related Report
      2007 Annual Research Report
  • [Presentation] 非2本鎖切断型クラスター損傷(8-oxoGと鎖切断)の突然変異誘発2007

    • Author(s)
      野口 実穂
    • Organizer
      日本放射線影響学会第50回大会
    • Place of Presentation
      千葉市(幕張メッセ),千葉県
    • Related Report
      2007 Annual Research Report
  • [Presentation] 放射線によりプラスミドDNAの両鎖に生じた非DSB性多重SSBのDNAの変性を利用した新しい定量法2007

    • Author(s)
      横谷 明徳
    • Organizer
      日本放射線影響学会第50回大会
    • Place of Presentation
      千葉市(幕張メッセ),千葉県
    • Related Report
      2007 Annual Research Report
  • [Presentation] 光子及びイオン粒子照射により生じるDNA鎖切断及び塩基損傷の収率のLET依存性2006

    • Author(s)
      横谷明徳
    • Organizer
      日本放射線影響学会第49回大会
    • Place of Presentation
      札幌
    • Year and Date
      2006-09-06
    • Related Report
      2008 Final Research Report
  • [Presentation] 非二本鎖切断型クラスターDNA損傷の生物効果2006

    • Author(s)
      鹿園直哉
    • Organizer
      日本放射線影響学会第49回大会
    • Place of Presentation
      札幌
    • Year and Date
      2006-09-06
    • Related Report
      2008 Final Research Report
  • [Presentation] 軟X線(270-560eV)照射により乾燥DNA中に生じる鎖切断、塩基損傷及びクラスター損傷の照射エネルギー依存性2006

    • Author(s)
      藤井健太郎
    • Organizer
      日本放射線影響学会第49回大会
    • Place of Presentation
      札幌
    • Year and Date
      2006-09-06
    • Related Report
      2008 Final Research Report
  • [Presentation] 大腸菌における8-オキソグアニンとチミングリコールから成るクラスターDNA損傷の突然変異誘効果2006

    • Author(s)
      漆原あゆみ
    • Organizer
      日本放射線影響学会第49回大会
    • Place of Presentation
      札幌
    • Year and Date
      2006-09-06
    • Related Report
      2008 Final Research Report
  • [Presentation] DNA鎖切断末端構造の酵素反応速度論敵研究2006

    • Author(s)
      赤松憲
    • Organizer
      日本放射線影響学会第49回大会
    • Place of Presentation
      札幌
    • Year and Date
      2006-09-06
    • Related Report
      2008 Final Research Report
  • [Presentation] Mutagenic potential of clustered DNA damage site in Escherichia

    • Author(s)
      N. Shikazono
    • Organizer
      The 9th International Workshop on Radiation Damage to DNA, May 14-17, 2006, Antalya, Turkey. 41. A. Yokoya, DNA damages induced by ion particles and photons with various energies. The 9th International Workshop on Radiation Damage to DNA, May 14-17, 2006, Antalya, Turkey.
    • Related Report
      2008 Final Research Report
  • [Book] 放射線によるDNA損傷誘発過程のモンテカルロシミュレーション、「放射線化学のすすめ」日本放射線化学会編2006

    • Author(s)
      渡辺立子
    • Publisher
      学会出版センター
    • Related Report
      2008 Final Research Report

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Published: 2006-04-01   Modified: 2016-04-21  

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