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2009 Fiscal Year Final Research Report

Research for the effects of toluene exposure on the development and sexual differentiation of the brain

Research Project

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Project/Area Number 19681006
Research Category

Grant-in-Aid for Young Scientists (A)

Allocation TypeSingle-year Grants
Research Field Risk sciences of radiation/Chemicals
Research InstitutionNational Institute for Environmental Studies

Principal Investigator

TSUKAHARA Shinji  National Institute for Environmental Studies, 大学院・理工学研究科, 准教授 (90318824)

Project Period (FY) 2007 – 2009
Keywordsトルエン / 脳の性分化 / テストステロン / 性的二型核 / アポトーシス
Research Abstract

We recently pay attention to the risk of the adverse effects of environmental chemical exposure on child health. This study was aimed to determine the effects of developmental exposure to toluene, a volatile organic compound widely used as an industrial solvent, on the sexual differentiation of the brain. As the results, it was found that exposure to toluene during developing period decreased blood testosterone levels of fetal male rats and the volume of the SDN-POA, a sexually dimorphic nucleus, of male rats in adulthood.

  • Research Products

    (16 results)

All 2010 2009 2008 2007 Other

All Journal Article (7 results) (of which Peer Reviewed: 7 results) Presentation (8 results) Remarks (1 results)

  • [Journal Article] 脳の性分化におよぼす発達期トルエン曝露の影響と作用機序2010

    • Author(s)
      塚原伸治, 中島大介, 藤巻秀和
    • Journal Title

      室内環境 13

      Pages: 1-8

    • Peer Reviewed
  • [Journal Article] Effects of maternal toluene exposure on testosterone levels in fetal rats.2009

    • Author(s)
      Tsukahara S, Nakajima D, Kuroda Y, Hojo R, Kageyama S, Fujimaki H
    • Journal Title

      Toxicology Letters 185

      Pages: 79-84

    • Peer Reviewed
  • [Journal Article] Sex differences and roles of sex steroids in apoptosis of sexually dimorphic nuclei of preoptic area in postnatal rats.2009

    • Author(s)
      Tsukahara S
    • Journal Title

      Journal of Neuroendocrinology 21

      Pages: 370-376

    • Peer Reviewed
  • [Journal Article] Measurement of toluene concentrations in the blood of fetuses of pregnant rats exposed to low concentration toluene using headspace solid phase micro extraction-gas chromatograph-mass spectrometry.2009

    • Author(s)
      Nakajima D, Tsukahara S, Hojo R, Kageyama S, Goto S, Shiraishi H, Shiraishi F, Fujimaki H
    • Journal Title

      Journal of Health Science 55

      Pages: 50-55

    • Peer Reviewed
  • [Journal Article] Estrogen modulates Bcl-2 family protein expression in the sexually dimorphic nucleus of the preoptic area of postnatal rats.2008

    • Author(s)
      Tsukahara S, Hojo R, Kuroda Y, Fujimaki H
    • Journal Title

      Neuroscience Letters 432

      Pages: 58-63

    • Peer Reviewed
  • [Journal Article] 揮発性有機化合物および農薬の発達期曝露による中枢神経系への影響についての調査研究2008

    • Author(s)
      塚原伸治, 石堂正美, 黒河佳香, 藤巻秀和
    • Journal Title

      大気環境学会誌 43

      Pages: 180-190

    • Peer Reviewed
  • [Journal Article] 胎児・小児への影響を考慮したVOC研究の現状と展開2008

    • Author(s)
      中島大介, 塚原伸治, 影山志保, 白石不二雄, 藤巻秀和
    • Journal Title

      室内環境 11

      Pages: 103-109

    • Peer Reviewed
  • [Presentation] 発達期のトルエン曝露によるテストステロン分泌および脳内のアポトーシス細胞死への影響2008

    • Author(s)
      塚原伸治, 黒田淑子, 中島大介, 影山志保, 藤巻秀和
    • Organizer
      平成20年度室内環境学会総会
    • Place of Presentation
      東京
    • Year and Date
      20081201-20081202
  • [Presentation] Effects of developmental exposure to toluene on the sexual differentiation of the brain.2008

    • Author(s)
      Tsukahara S
    • Organizer
      Japan/China Symposium 2008 (KIZUNA2008): Strategies to Reduce Risks on the Brain Development Contingent to Urbanization
    • Place of Presentation
      Tsukuba, Japan
    • Year and Date
      20081023-20081025
  • [Presentation] Effects of exposure to toluene on steroidogenesis in testes and sromatization of testosterone in brain of male rats furing fetal life.2008

    • Author(s)
      Tsukahara S, Nakajima D, Kuroda Y, Kageyama S, Hojo R, Fujimaki H
    • Organizer
      45th Congress of the European Societies of Toxicology
    • Place of Presentation
      Rhodes, Greece
    • Year and Date
      20081005-20081008
  • [Presentation] 脳の性分化に関与する発達期の性ステロイドホルモン分泌および性的二型核のアポトーシスに及ぼすトルエン曝露の影響2008

    • Author(s)
      塚原伸治, 中島大介, 黒田淑子, 影山志保, 藤巻秀和
    • Organizer
      第49回大気環境学会年会
    • Place of Presentation
      金沢
    • Year and Date
      20080917-20080919
  • [Presentation] 発達期の性的二型核におけるアポトーシスに関する研究2008

    • Author(s)
      塚原伸治
    • Organizer
      第35回日本神経内分泌学会・第23回日本下垂体研究会合同学術集会
    • Place of Presentation
      東京
    • Year and Date
      20080828-20080830
  • [Presentation] 周産期トルエン曝露による胎仔ラットの脳内エストラジオール含量および出生仔ラットのSDN-POAのアポトーシスへの影響2008

    • Author(s)
      塚原伸治, 中島大介, 黒田淑子, 影山志保, 藤巻秀和
    • Organizer
      第31回日本神経科学大会
    • Place of Presentation
      東京
    • Year and Date
      20080709-20080711
  • [Presentation] 発達期の脳の性分化機構におよぼす化学物質の影響2008

    • Author(s)
      塚原伸治
    • Organizer
      第128回日本薬学会年会
    • Place of Presentation
      横浜
    • Year and Date
      20080326-20080328
  • [Presentation] VOCの脳神経系におよぼす影響2007

    • Author(s)
      塚原伸治
    • Organizer
      第48回大気環境学会年会
    • Place of Presentation
      岡山
    • Year and Date
      20070905-20070907
  • [Remarks]

    • URL

      http://www.nies.go.jp/risk/mei/mei002_5.html

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Published: 2011-06-18   Modified: 2016-04-21  

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