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Prevention and treatment of aspermatogenesis during bis(2-ethylhexyl)phthalate) by tetrahydrobiopterin

Research Project

Project/Area Number 18791137
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeSingle-year Grants
Research Field Urology
Research InstitutionTokyo Medical University

Principal Investigator

TERAYAMA Hayato  Tokyo Medical University, 医学部, 助教 (00384983)

Project Period (FY) 2006 – 2007
Project Status Completed (Fiscal Year 2008)
Budget Amount *help
¥3,660,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥360,000)
Fiscal Year 2008: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2007: ¥1,000,000 (Direct Cost: ¥1,000,000)
Fiscal Year 2006: ¥1,100,000 (Direct Cost: ¥1,100,000)
Keywordsアンドロロジー / テトラヒドロビオプテリン / フタル酸エステル / 精巣 / 精子形成障害 / 予防 / 治療 / マウス / リンパ球浸潤 / フタル酸エステル(DEHP) / テトラヒドロビオピテリン / 精細管
Research Abstract

2006、2007年度に、内分泌かく乱物質であるフタル酸エステル(DEHP:オリエンタル社)の投与濃度による精子形成への影響を観察した。また、精子形成障害に対するテトラヒドロビオプテリン(BH4:第一アスビオファーマ社)の治療効果を検討するために、BH4 の投与時期や投与方法、使用マウス種の条件検討をした。その結果、高DEHP 濃度(1.5%、1.0%DEHP)の長期間投与すると精巣にリンパ球浸潤が認められる事がわかった。また、低DEHP 濃度においてA/J マウスは感受性に個体差が少なかった。以上の結果から2008 年度は(1)A/J マウスに低濃度である0.5%DEHP 食餌とBH4 水(20mg/kg・BH4 を給水に混ぜ自由摂取)を同時投与し、投与後のBH4 の予防効果を組織学的に検討した。(2)A/J マウスに0.5%DEHP 暴露による精子形成障害後にBH4 水を1 週間与え、BH4 による障害に対する治療効果を組織学的に検討した。(1)および(2)の結果として、DEHP+BH4 水投与群およびDEHP のみ投与群を比較し、両群ともに肉眼的に変化はなかったが、(1)光学顕微鏡下ではDEHP 群に比べDEHP+BH4投与群は精細管内の細胞脱落および多少の精子形成障害の改善傾向を認めたが、有意差は得られなかった。(2)光学顕微鏡下ではDEHP 群に比べDEHP+BH4投与群は精細管内の細胞脱落の改善傾向を認めたが、有意差は得られなかった。今後、実験条件を改善する事で、DEHP 暴露による精子形成障害についてBH4が予防や治療効果を示す可能性があると思われる。

Report

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

    (28 results)

All 2008 2007

All Journal Article (16 results) (of which Peer Reviewed: 14 results) Presentation (12 results)

  • [Journal Article] Structure of thymic cysts in congenital lymph nodes lacked mice.2008

    • Author(s)
      Nakamura Y, Qu N, Terayama H, Naito M, Shuang-Qin Yi, Moriyama H, Itoh M
    • Journal Title

      Anatomia Histologia Embryologia 37

      Pages: 126-130

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Right gonadal arteries passing dorsally to the inferior vena cava : embryological hypotheses.2008

    • Author(s)
      Terayama H, Yi SQ, Naito M, Qu N, Hirai S, Kitaoka M, Iimura A, Moriyama H, Steinke H and Itoh M
    • Journal Title

      Surgical and Radiologic Anatomy 30(8)

      Pages: 657-661

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Caput epididymitis but not orchitis was induced by vasectomy in a murine model of experimental autoimmune orchitis.2008

    • Author(s)
      Qu N, Terayama H, Naito M, Ogawa Y, Hirai S, Kitaoka M, Yi SQ, Itoh M
    • Journal Title

      Reproduction 135(6)

      Pages: 859-866

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Splenic cytokines in mice immunized with testicular germ cells.2008

    • Author(s)
      Tokunaga Y, Terayama H, Naito M, Qu N, Hirai S, Ogawa Y, Yi SQ, Itoh M
    • Journal Title

      International Journal of Andrology 31(5)

      Pages: 471-476

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] The presence of intra-tubular lymphocytes in normal testis of the mouse.2008

    • Author(s)
      Naito M, Terayama H, Hirai S, Qu S, Moriyama H, Itoh M
    • Journal Title

      Okajimas Folia Anatomica Japonica 85(3)

      Pages: 91-96

    • NAID

      130004495055

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Right gonadal arteries passing dorsally tothe inferior vena cava : embryological hypotheses2008

    • Author(s)
      Terayama H
    • Journal Title

      Surgical and Radiologic Anatomy 30(8)

      Pages: 657-661

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Caput epididymitis but not orchitis was induced by vasectomy in a murine model of experimental autoimmune orchitis2008

    • Author(s)
      Qu N
    • Journal Title

      Reproduction 135(6)

      Pages: 859-866

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Splenic cytokines in mice immunized with testicular germ cells2008

    • Author(s)
      Tokunaga Y
    • Journal Title

      International Journal of Andrology 31(5)

      Pages: 471-476

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Immunomorphological aspects of the tubuli recti and the surrounding interstitium in normal mice.2007

    • Author(s)
      Takahashi K, Naito M, Terayama H, Qu N, Cheng L, Tainosho S, Itoh M
    • Journal Title

      International Journal of Andrology 30(1)

      Pages: 21-27

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Short term effects of di-(2-ethylhexyl) phthalate (DEHP) on testes, liver, kidneys and pancreas in mice.2007

    • Author(s)
      Miura Y, Naito M, Ablake M, Terayama H, Shuang-Qin Yi, Qu N, Cheng L, Suna S, Jitsunari F, Itoh M
    • Journal Title

      Asian Journal of Andrology 9(2)

      Pages: 199-255

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Sequential histopathology of pancreatic tissues in aly/aly mice.2007

    • Author(s)
      Nakamura Y, Yi SQ, Terayama H, Naito M, Li J, Moriyama H, Tsuchida A, Itoh M
    • Journal Title

      Cells Tissues Organs 186(3)

      Pages: 204-209

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] A common celiacomesenteric trunk, and a brief review of the literature.2007

    • Author(s)
      Shuang, QY・Terayama, H・Naito, M・Hayashi, S・Itoh, M, et. al.
    • Journal Title

      Annals of Anatomy 189

      Pages: 482-488

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Immunomorphological aspects of the tubuh recti and the surrounding in terstitium in normal mice.2007

    • Author(s)
      Takahashi, K・Naito, M・Terayama, H・Qu, N・Itoh, M, et. al.
    • Journal Title

      International Journal of Andrology 30

      Pages: 21-27

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Short term effects of di-(2-ethylhexyl) phthalate (DEHP) on testes, liver, kidneys and pancreas in mice.2007

    • Author(s)
      Miura, Y・Naito, M・Ablake, M・Terayama, H・Itoh, M, et. al.
    • Journal Title

      Asian Journal of Aiidrology 9

      Pages: 199-205

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Immunomorphological aspects of the tubuli recti and the surrounding interstitium in normal mice.2007

    • Author(s)
      Takahashi K, Naito M, Terayama H, Qu N, Cheng L, Tainosho S, Itoh M
    • Journal Title

      International Journal of Andrology 30 (1)

      Pages: 21-27

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Short term effects of di-(2-ethylhexyl) phthalate (DEHP) on testes, liver, kidneys and pancreas in mice.2007

    • Author(s)
      Miura Y, Naito M, Ablake M, Terayama H, Shuang-Qin Yi, Qu N, Cheng L, Suna S, Jitsunari F, Itoh M
    • Journal Title

      Asian Journal of Andrology 9 (2)

      Pages: 199-205

    • Related Report
      2006 Annual Research Report
  • [Presentation] 環境毒性物質による精巣障害とIL-6 の関連性2008

    • Author(s)
      寺山隼人、内藤宗和、平井宗一、曲寧、北岡三幸、小川夕輝、河田晋一、伊藤正裕
    • Organizer
      第28回麻布環境科学研究会
    • Place of Presentation
      相模原
    • Year and Date
      2008-09-06
    • Related Report
      2008 Final Research Report
  • [Presentation] A new murine model of autoimmune orchitis induced by intraperitoneal fixation of donor's testis, epidydimis and vas deference.2008

    • Author(s)
      寺山隼人、内藤宗和、平井宗一、曲寧、北岡三幸、小川夕輝、伊藤正裕
    • Organizer
      第161回東京医科大学医学会総会
    • Place of Presentation
      新宿
    • Year and Date
      2008-06-07
    • Related Report
      2008 Final Research Report
  • [Presentation] 免疫学的、化学的、物理的精巣障害とサイトカイン2008

    • Author(s)
      寺山隼人、内藤宗和、平井宗一
    • Organizer
      第113回日本解剖学会総会・全国学術集会,シンポジウム(精子形成過程に於ける細胞動態制御の分子解剖学)
    • Place of Presentation
      大分
    • Related Report
      2008 Final Research Report
  • [Presentation] Analysis of target antigens for testicular autoimmunity in mice.2008

    • Author(s)
      寺山隼人、内藤宗和、伊藤正裕
    • Organizer
      第53回日本生殖医学会総会・学術講演会
    • Place of Presentation
      神戸
    • Related Report
      2008 Final Research Report
  • [Presentation] マウス自己免疫精巣炎を引き起こす自己抗原のプロテオーム解析2008

    • Author(s)
      寺山隼人、内藤宗和、平井宗一、曲寧、片桐千秋、松下正之、伊藤正裕
    • Organizer
      第23回日本生殖免疫学会総会・学術集会
    • Place of Presentation
      富山
    • Related Report
      2008 Final Research Report
  • [Presentation] Analysis of target antigens for testicular autoimmunity in mice2008

    • Author(s)
      寺山隼人
    • Organizer
      日本生殖医学学会
    • Place of Presentation
      神戸
    • Related Report
      2008 Annual Research Report
  • [Presentation] 特発性男性不妊モデルにおけるサイトカイン分泌動態2007

    • Author(s)
      寺山隼人、内藤宗和、徳永葉、北岡三幸、曲寧、小茂田文子、程林仙、小川夕輝、伊藤正裕
    • Organizer
      第135回日本生殖医学会関東地方部会
    • Place of Presentation
      世田谷
    • Year and Date
      2007-02-10
    • Related Report
      2008 Final Research Report
  • [Presentation] Changes of cytokines production during murine exprimental autoimmune orchitis.2007

    • Author(s)
      Terayama H, Naito M, Tokunaga Y, Qu N, Itoh M
    • Organizer
      27th Annual Meeting American Society for Reproductive Immunology
    • Place of Presentation
      Tronto
    • Related Report
      2008 Final Research Report
  • [Presentation] Changes of cytokines production during testicular autoimmunity in mice.2007

    • Author(s)
      寺山隼人、内藤宗和、曲寧、平井宗一、北岡三幸、小茂田文子、小川夕輝、徳永葉、伊藤正裕
    • Organizer
      第72回日本泌尿器科学会東部総会
    • Place of Presentation
      札幌
    • Related Report
      2008 Final Research Report
  • [Presentation] 環境毒性物質投与によるマウス精巣障害におけるサイトカイン変化2007

    • Author(s)
      寺山隼人、内藤宗和、平井宗一、曲寧、北岡三幸、小川夕輝、徳永葉、伊藤正裕
    • Organizer
      第22回日本生殖免疫学会総会・学術集会
    • Place of Presentation
      新宿
    • Related Report
      2008 Final Research Report
  • [Presentation] Changes of cytokines production during testicular autoimmmunity in mice2007

    • Author(s)
      寺山隼人、内藤宗和、曲寧 等
    • Organizer
      日本泌尿器科学会東部総会
    • Place of Presentation
      札幌
    • Related Report
      2007 Annual Research Report
  • [Presentation] 環境毒性物質投与によるマウス精巣障害におけるサイトカイン変化2007

    • Author(s)
      寺山隼人、内藤宗和、曲寧 等
    • Organizer
      日本生殖免疫学会総会・学術集会
    • Place of Presentation
      東京
    • Related Report
      2007 Annual Research Report

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

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