| Project/Area Number |
08670737
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Neurology
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| Research Institution | Kinki University |
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Principal Investigator |
KIHARA Mikihiro Kinki University, School Medicine.Department of Neurology Associate Professor., 医学部, 助教授 (00153172)
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| Co-Investigator(Kenkyū-buntansha) |
三井 良之 近畿大学, 医学部, 助手 (40268389)
高橋 光雄 近畿大学, 医学部, 教授 (20028492)
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| Project Period (FY) |
1996 – 1998
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| Project Status |
Completed (Fiscal Year 1998)
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| Budget Amount *help |
¥2,300,000 (Direct Cost: ¥2,300,000)
Fiscal Year 1998: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 1997: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 1996: ¥900,000 (Direct Cost: ¥900,000)
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| Keywords | Ageing / Peripheral nerve / Nerve blood flow / Autonomic function / DM / Endothelin / Angiotensin / Noradrenalin / 抗利尿ホルモン / 水素クリアランス / 血管収縮 / 末梢神経血流量 / 局所環流 / ACE阻害剤 |
|---|
| Research Abstract |
This study examined the influence of the constricting agents (noradrenalin, endothelin I and angiotensin 2) in Spague Dawley rats aged 2 and 18 months by evaluated epineurial arteriolar vasoreactivity in response to superfused teats agents. Nerve blood flow (NBF) was measured using microelectrode H2 polarography. In 24 months rats, NBF was more decrease and vascular resistance was more increase than 2 months rats. All the constricting agents reduced NBF both group of 2 months and 18 months, however the effect of the constricting agents significant decreased with age. These results suggested that the vasomotor reactivity of noradrenalin, endothelini and angiotensin2 were modesty affected by aging.
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