| Project/Area Number |
20500714
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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 |
Eating habits, studies on eating habits
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| Research Institution | Kagawa Prefectural College of Health Sciences |
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Principal Investigator |
KABUTO Hideaki Kagawa Prefectural College of Health Sciences, 教養部, 教授 (00321266)
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| Co-Investigator(Kenkyū-buntansha) |
YAMANUSHI Tomoko 香川県立保健医療大学, 教養部, 准教授 (40382395)
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| Project Period (FY) |
2008 – 2010
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| Project Status |
Completed (Fiscal Year 2010)
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| Budget Amount *help |
¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2010: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2009: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2008: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
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| Keywords | パーキンソン病 / 香辛料 / 病態進行 / L-DOPA / 健康と食生活 / Parkinson病 / 6-hydroxydopamine / L-dopa / zingerone / eugenol / catalase / superoxide dismutase / glutathione peroxidase / dopamine |
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| Research Abstract |
We examined the effects of zingerone and eugenol, essential oils extracted from ginger and cloves, on the dopamine(DA) concentration and antioxidant activities in the mouse striatum after 6-hydroxydopamine(6-OHDA) administration and L-DOPA treatment. Daily oral administration of eugenol/zingerone and injection of L-DOPA intraperitoneally for 4 weeks following a single 6-OHDA injection did not improve abnormal behaviors induced by L-DOPA treatment. 6-OHDA reduced the DA level in the striatum, zingerone and eugenol enhanced the reduction of striatal DA and its metabolites. Zingerone decreased catalase activity and increased the oxidized L-ascorbate level in the striatum. We previously reported that pre-treatment with zingerone or eugenol prevents 6-OHDA-induced DA depression by preventing lipid peroxidation. However, the present study shows that post-treatment with these substances enhanced the DA decrease. These substances had adverse effects dependent on the time of administration relative to model PD onset. These results suggest that we should be wary of ingesting these spice elements after the onset of PD symptoms.
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