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The assessment of oxygen toxicity in early postnatal life and its relationship with gestational age in preterm infants

Research Project

Project/Area Number 19591289
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Embryonic/Neonatal medicine
Research InstitutionOsaka Medical College

Principal Investigator

OGIHARA Tohru  Osaka Medical College, 医学部, 講師 (00211128)

Co-Investigator(Kenkyū-buntansha) 吉田 康一  産業技術総合研究所, ヒューマンストレスシグナル研究センター, 研究員 (90358333)
Co-Investigator(Renkei-kenkyūsha) YOSHIDA Yasukazu  産業技術総合研究所, ストレスシグナルチーム, リーダー (90358333)
Project Period (FY) 2007 – 2008
Project Status Completed (Fiscal Year 2008)
Budget Amount *help
¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2008: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2007: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Keywords早産低出生体重児 / 酸化ストレスマーカー / 酸素毒性 / dityrosine / HODE / ortho-Tyrosine
Research Abstract

早産新生児の酸化ストレスの程度が、在胎週数の低下に応じて強くなるのか、ある週数を境に酸化ストレスの程度が軽くなるのか、さらにはたとえ満期成熟新生児でも酸素投与などの酸化ストレスに対しては早産新生児と同様に脆弱であるのか、こうしたfundamentalな疑問に答えるべく、臍帯血、生後約3-5日、および約7-10日の3点での血漿検体を利用して、脂質過酸化生成物とアミノ酸酸化生成物をGC-MS法によって測定した。その結果、出生後2週間までの短期間に限れば、酸化ストレスの程度は、(1) 吸入酸素分圧とは直接関連しないが、積算酸素投与量と有意に相関し、(2) 在胎週数とは逆相関の関係にあることが判明した。

Report

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

    (5 results)

All 2009 2007 Other

All Journal Article (3 results) (of which Peer Reviewed: 2 results) Presentation (1 results) Remarks (1 results)

  • [Journal Article] Hypothermic inhibition of apoptotic pathways for combined neurotoxicity of iron and ascorbic acid in differentiated PC12 cells : reduction of oxidative stress and maintenance of the glutathione redox state2009

    • Author(s)
      Masashi Hasegawa, Tohru Ogihara, Hiroshi Tamai, and Mayo Hiroi
    • Journal Title

      Brain Research (in press)

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Antenatal primingによるCLDの重症化2009

    • Author(s)
      荻原享、大植慎也
    • Journal Title

      周産期医学 39

      Pages: 750-760

    • Related Report
      2008 Final Research Report
  • [Journal Article] Hypothermic inhibition of apoptotic pathways for combined neurotoxiicity of iron and ascorbic acid in differentiated PC12 cells : reduction of oxidative stress and maintenance of the glutathione redx state2009

    • Author(s)
      Masashi Hasegawa, Tohru Ogihara, Hiroshi Tamai, Mayo Hiroi
    • Journal Title

      Brain research (In press)

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Presentation] 新生児にとって酸素はそんなに危険なのだろうか2007

    • Author(s)
      荻原 享
    • Organizer
      第52回日本未熟児新生児学会
    • Place of Presentation
      香川
    • Year and Date
      2007-11-26
    • Related Report
      2007 Annual Research Report
  • [Remarks]

    • URL

      http://www.osaka-med.ac.jp/deps/ped/nicu/index.html

    • Related Report
      2007 Annual Research Report

URL: 

Published: 2007-04-01   Modified: 2016-04-21  

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