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

1995 Fiscal Year Final Research Report Summary

Development of specific substances evaluated by the regulation of glucose transporter involved in aging of brain

Research Project

Project/Area Number 05557107
Research Category

Grant-in-Aid for Developmental Scientific Research (B)

Allocation TypeSingle-year Grants
Research Field Biological pharmacy
Research InstitutionHIROSHIMA UNIVERSITY

Principal Investigator

ISHIBASHI Sadahiko  Hiroshima University School of Medicine, Professor, 医学部, 教授 (90012616)

Co-Investigator(Kenkyū-buntansha) KUROKAWA Tomonori  Hiroshima University School of Medicine, Associate Professor, 医学部, 助教授 (00124793)
KIMURA Eiichi  Hiroshima University School of Medicine, Professor, 医学部, 教授 (30034010)
Project Period (FY) 1993 – 1995
KeywordsSenescence-accelerated mouse (SAM) / Glucose metabolism / Oxidative stress / Active oxygen / Peroxisome
Research Abstract

First, we tried to clarify the characteristic of the energy metabolism in the brain cells of SAMP8, a substrain of accelerated senescence-prone strain. We found that the rate of D-glucose oxidation at 4- to 8-weeks of age, just before the appearance of deficits in the brain, was higher than that in age-matched SAMR1 and SAMR2 and that the increase in glucose transporter protein in the cell surface membrane was involved in the increased metabolism. Both the increases were restricted at 4- to 8-weeks of age and the cerebral cortex.
Next, we examined the involvement of oxygen free radicals in relation to the above-mentioned change in the cnergy metabolism. We found the transient increase in the contents of lipid peroxides and protein carbonyl only in the cerebral cortex of SAMP8 at 4- to 8-weeks of age in comparison with SAMR1. Accordingly, the content of hydrogen peroxide was increased in the cerebral cells of SAMP8 at 4- to 8-weeks of age. In comparison of the various enzyme activities in the peroxisome in the cerebral cortex between the two strains. The decrease in the catalase activity and increase in acyl-CoA oxidase activity were observed in SAMP8.
It is quite likely that these results provide some clues towards understanding the mechanism responsible for initiating the process of senile memory impairment in the brain and contribute the development of new therapeutic substances for aging.

  • Research Products

    (6 results)

All Other

All Publications (6 results)

  • [Publications] E. Sato: "Early changes in glucose metabolism in the cerebrum of senescence accelerated mouse : involvement of glucose transporter." Brain Res.637. 133-138 (1994)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] E. Sato: "Early and transient increase in oxidative stress in the cerebral cortex of senescence-accelerated mouse." Mech. Ageing Dev.86. 105-114 (1996)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] E. Sato: "The SAM Model of Senescence," T. Takeda Elsevier, Amsterdam, 458 (1994)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] E.Sato: "Early changes in glucose metabolism in the cerebrum of senescence accelerated mouse : involvement of glucose transporter." Brain Res.637. 133-138 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] E.Sato: "Early changes in glucose metabolism in the cerebrum of senescence accelerated mouse : coupling with glucose transporter." In T.Takeda (Ed.), The SAM Model of Senescence, Elsevier, Amsterdam. 313-316 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] E.Sato: "Early and transient increase in oxidative stress in the cerebral cortex of senescence-accelerated mouse." Mech.Ageing Dev.86. 105-114 (1996)

    • Description
      「研究成果報告書概要(欧文)」より

URL: 

Published: 1997-03-04  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi