• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Basic examination of the premature baby kernicterus prevention by bilirubin metabolism and the cerebrovascular endothelial functional

Research Project

Project/Area Number 17K10179
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Embryonic/Neonatal medicine
Research InstitutionKagawa University

Principal Investigator

Iwase Takashi  香川大学, 医学部附属病院, 講師 (30284368)

Co-Investigator(Kenkyū-buntansha) 安田 真之  香川大学, 医学部附属病院, 准教授 (00380155)
小谷野 耕佑  香川大学, 医学部附属病院, 助教 (20437685)
岡田 仁  香川大学, 医学部, 准教授 (30253272)
中村 信嗣  香川大学, 医学部附属病院, 助教 (30437686)
日下 隆  香川大学, 医学部, 教授 (50274288)
Project Period (FY) 2017-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2019: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2018: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2017: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywords新生児 / 早産児 / 抱合型ビリルビン / コプロポルフィリン / 黄疸 / 近赤外光 / トランスポーター / 新生児黄疸 / 核黄疸 / 高ビリルビン血症 / HPLC / 光トポグラフィー / ビリルビン代謝 / NIRS
Outline of Final Research Achievements

We aimed for establishing the kernicterus preventive administration method that accepted the functional maturation value of the premature baby who evaluated the bilirubin metabolism in the premature baby and cerebrovascular endothelial functional maturation value, and this study elucidated a pathophysiological characteristic by the maturation value of children with kernicterus, and reflected the characteristic for the last time.
The bilirubin metabolism of the premature baby evaluated bilirubin conjugated excretion ability at blood conjugation, bilirubin unconjugated ratio with bilirubin conjugation ability (UDP-glucuronosyl transferase activity).
Because MRP2/ABCC2 was the transporter which excreted the exogenous materials such as endogenous substance or drugs such as the conjugated bilirubin to the liver outside, we examined a change by the number of in instar, a revision week on the day of the urinary coproporphyrin ratio (UCP [I/(I+III)]).

Academic Significance and Societal Importance of the Research Achievements

早産児(在胎25~32週、21例)では、生後24時間では高値、その後低下して生後1~4週間では一定値を示す。生後7日のUCP比の低下は生後の適応に伴うコプロポルフィリン I の肝分布の増加に伴う排泄増加と考えMRP2の機能の間接評価として生後2週以降が適切と考えた。また、近赤外光topography(91 ch)を使用し脳循環のリズムを検討した。対象は早産児11例、正期産児81例で前頭回、運動野、補足運動野での安静状態におけるoxy-Hbとdeoxy-Hbの位相差の発達変化を検討し、先行研究と同様に正期産児、早産児共に発達に伴い同位相→逆位相へと変化する領域があり、領域特有の発達変化を示した。

Report

(5 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (16 results)

All 2020 2019 2018 2017

All Journal Article (10 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 10 results,  Open Access: 5 results) Presentation (6 results) (of which Invited: 1 results)

  • [Journal Article] Hour-specific Nomogram for Transcutaneous Bilirubin in Newborns in Myanmar2020

    • Author(s)
      Yasuda S, Suzuki H, Htun Y, Aye NSS, Oo H, Oo AK, Yu KZ, Sin KS, Itoh S, Kusaka T
    • Journal Title

      Pediatr Int

      Volume: - Issue: 9 Pages: 1049-1053

    • DOI

      10.1111/ped.14251

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] The effects of early life stress on the excitatory/inhibitory balance of the medial prefrontal cortex2020

    • Author(s)
      Ohta KI, Suzuki S, Warita K, Sumitani K, Tenkumo C, Ozawa T, Ujihara H, Kusaka T, Miki T.
    • Journal Title

      Behav Brain Res

      Volume: 379 Pages: 112306-112306

    • DOI

      10.1016/j.bbr.2019.112306

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Green light-emitting diode phototherapy for neonatal hyperbilirubinemia: Randomized controlled trial2019

    • Author(s)
      Kuboi T, Kusaka T, Okada H, Arioka M, Nii K, Takahashi M, Yamato S, Sadamura T, Jinnnai W, Nakao A, Itoh S
    • Journal Title

      Pediatr Int

      Volume: 61 Issue: 5 Pages: 465-470

    • DOI

      10.1111/ped.13821

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Effectiveness of green light phototherapy for neonatal hyperbilirubinemia2019

    • Author(s)
      Kusaka T
    • Journal Title

      Pediatr Int

      Volume: 61 Issue: 8 Pages: 747-747

    • DOI

      10.1111/ped.13982

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Developmental changes in urinary coproporphyrin ratio in premature infants2019

    • Author(s)
      Nakata Y, Okada H, Itoh S, Kusaka T
    • Journal Title

      Pediatr Int

      Volume: 62 Issue: 1 Pages: 65-69

    • DOI

      10.1111/ped.14024

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Measurement of the Absolute Value of Cerebral Blood Volume and Optical Properties in Term Neonates Immediately after Birth Using Near-Infrared Time-Resolved Spectroscopy: A Preliminary Observation Study2019

    • Author(s)
      Morimoto Aya、Nakamura Shinji、Sugino Masashiro、Koyano Kosuke、Htun Yinmon、Arioka Makoto、Fuke Noriko、Mizuo Ami、Yokota Takayuki、Kato Ikuko、Konishi Yukihiko、Kondo Sonoko、Iwase Takashi、Yasuda Saneyuki、Kusaka Takashi
    • Journal Title

      Applied Sciences

      Volume: 9 Issue: 10 Pages: 2172-2172

    • DOI

      10.3390/app9102172

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Hydrogen ventilation combined with mild hypothermia improves short-term neurological outcomes in a 5-day neonatal hypoxia-ischaemia piglet model2019

    • Author(s)
      Htun Yinmon、Nakamura Shinji、Nakao Yasuhiro、Mitsuie Tsutomu、Nakamura Makoto、Yamato Satoshi、Jinnai Wataru、Koyano Kosuke、Ohta Kenichi、Morimoto Aya、Wakabayashi Takayuki、Sugino Masashiro、Fujioka Kazumichi、Kato Ikuko、Kondo Sonoko、Yasuda Saneyuki、Miki Takanori、Ueno Masaki、Kusaka Takashi
    • Journal Title

      Scientific Reports

      Volume: 9 Issue: 1 Pages: 4088-4088

    • DOI

      10.1038/s41598-019-40674-8

    • NAID

      120006599245

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Effect of psychotropic drugs on fetal behavior in the third trimester of pregnancy.2019

    • Author(s)
      Hata T, Kanenishi K, AboEllail MAM, Mori N, Koyano K, Kato I, Kusaka T
    • Journal Title

      J Perinat Med

      Volume: 47 Issue: 2 Pages: 207-211

    • DOI

      10.1515/jpm-2018-0114

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Effects of bilirubin photoisomers on the measurement of direct bilirubin by the bilirubin oxidase method2018

    • Author(s)
      Okada H, Kawada K, Itoh S, Ozaki M, Kakutani I, Arita T, Koyano K, Yasuda S, Iwase T, Murao K, Kusaka T
    • Journal Title

      Ann Clin Biochem

      Volume: 55 Issue: 2 Pages: 276-280

    • DOI

      10.1177/0004563217716474

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Bilirubin photoisomers in rhesus monkey serum2018

    • Author(s)
      Okada H, Itoh S, Nii K, Sugino M, Fuke N, Koyano K, Yasuda S, Kusaka T
    • Journal Title

      J Photochem Photobiol B

      Volume: 185 Pages: 50-54

    • DOI

      10.1016/j.jphotobiol.2018.05.019

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 波長の異なる新規青色LED光治療機器の臨床効果に関する基礎的検討2019

    • Author(s)
      岡田仁, 伊藤進, 横田崇之, 福家典子, 若林誉幸, 近藤健夫, 西庄佐恵, 岩瀬孝志, 日下隆
    • Organizer
      第55回日本周産期・新生児医学会学術集会
    • Related Report
      2019 Research-status Report
  • [Presentation] 新生児高ビリルビン血症の光療法における新規緑色LED光源の開発2019

    • Author(s)
      岡田仁, 伊藤進, 横田崇之, 明石未来, 水尾杏海, 福家典子, 若林誉幸, 近藤健夫, 西庄佐恵, 日下隆
    • Organizer
      第122回日本小児科学会学術集会
    • Related Report
      2019 Research-status Report
  • [Presentation] 新生児黄疸の管理の現状と解決2019

    • Author(s)
      日下隆
    • Organizer
      第156回周産期母子医療研究会 (鳥取県)
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] ブロンズベビー症候群のブロンズ物質に関する基礎的研究2019

    • Author(s)
      岡田仁, 伊藤進, 福家典子, 横田崇之, 近藤健夫, 近藤園子, 若林誉幸, 小西行彦, 岩瀬孝志, 日下隆
    • Organizer
      第64回日本新生児成育医学会・学術集会
    • Related Report
      2019 Research-status Report
  • [Presentation] ビリルビンの検査 その値、信じていいですか?2019

    • Author(s)
      安田真之
    • Organizer
      第21回新生児呼吸療法・モニタリングフォーラム 長野
    • Related Report
      2019 Research-status Report
  • [Presentation] 新生児集中治療室(NICU)で使用する薬剤のビリルビン遊離作用の研究-第2報:抗生物質の文献学的検索2017

    • Author(s)
      新居広一郎、岡田 仁、杉野政城、伊藤 進、川本昌平、近藤健夫、加藤育子、西庄佐恵、小谷野耕佑、安田真之、岩瀬孝志、日下 隆
    • Organizer
      第44回日本小児臨床薬理学会学術集会
    • Related Report
      2017 Research-status Report

URL: 

Published: 2017-04-28   Modified: 2022-01-27  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi