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Study on the mechanism of growth and developmental failure after birth of intrauterine growth retardation through growth factors

Research Project

Project/Area Number 10671019
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Embryonic/Neonatal medicine
Research InstitutionKobe University

Principal Investigator

UETANI Yoshiyuki  Kobe University, School of Medicine, Associate Professor, 医学部, 助教授 (40168620)

Co-Investigator(Kenkyū-buntansha) TAKADA Satoshi  Kobe University Hospital, Lecturer, 医学部・附属病院, 講師 (10216658)
Project Period (FY) 1998 – 1999
Project Status Completed (Fiscal Year 1999)
Budget Amount *help
¥3,000,000 (Direct Cost: ¥3,000,000)
Fiscal Year 1999: ¥1,500,000 (Direct Cost: ¥1,500,000)
Fiscal Year 1998: ¥1,500,000 (Direct Cost: ¥1,500,000)
Keywordsintrauterine growth retardation / IGF-II / IGF-I / growth / nutrition
Research Abstract

To clarify the factor of growth and development of premature intrauterine growth retardation (IUGR) infants, changes of plasma IGF-I, II levels in IUGR rat model during the perinatal period were studied. After ligation of uterine artery on the 17th and 19th day of pregnancy (ED17, ED19), pregnancy were continued and delivered. Although ED17 group rats were thought to be the model of growth failure and ED19 group rats should be the growth catch up group, there were no difference in growth after birth between these two groups. Plasma IGF-I, II levels on the 7th day after birth were not different between these two groups. Plasma IGF-II levels of premature IUGR infants were determined to study about the effects of IGF-II on the growth after birth. The IGF-II levels whose weight gain per week from birth to 40th week of conception were more or less than 150g were not different in every week. And these values were not different from the levels of AFD(appropriate for date) infants whose intrauterine growth were normal. The IGF-II levels of premature IUGR infants whose body weight at 40th week of conception were more or less than 2500g were not different in every week, but these values of AFD infants whose postcoceptional ages were matched to IUGR infants were significantly higher than those of the premature IUGR infants.
These results indicate that plasma IGF-II levels reflect the intrauterine growth and nutritional condition rather than regulate the speed of the postnatal growth and are not thought to be the main factor of growth failure of premature IUGR infants after birth.

Report

(3 results)
  • 1999 Annual Research Report   Final Research Report Summary
  • 1998 Annual Research Report
  • Research Products

    (5 results)

All Other

All Publications (5 results)

  • [Publications] 河合 徹: "極低出生体重児の栄養法 母乳添加物質と身体発育"日本新生児学会雑誌. 34(1). 134-142 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] 上谷良行: "未熟児の栄養"小児科診療. 62(1). 1846-1852 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Kawai T, Uetani Y, Nakamura H: "Effect of human milk supplementation with protein and Mineral fortifier on the growth rate of very low birth weight infants"Acta Neonatologica Japonica. 34(1). 134-142 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Uetani Y: "Nutrition of premature infants"Journal of Pediatric Practice. 62(11). 1846-1852 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] 上谷良行: "未熟児の栄養"小児科診療. 62(1). 1846-1852 (1999)

    • Related Report
      1999 Annual Research Report

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Published: 1998-04-01   Modified: 2016-04-21  

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