The effect of the serotonergic descending pain inhibitory system activation by acute noticeptive stimulation on chronic notiception in the rats.
Project/Area Number |
20592448
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
Social dentistry
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Research Institution | Tohoku University |
Principal Investigator |
ONODERA Dai Tohoku University, 大学院・歯学研究科, 大学院非常勤講師 (80312594)
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Co-Investigator(Kenkyū-buntansha) |
SHOJI Noriaki 東北大学, 病院, 講師 (70250800)
FUKUMOTO Takahiro 北海道大学, 遺伝子病制御研究所, 助教 (50433024)
示野 陽一 東北大学, 病院, 医員 (70447168)
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Project Period (FY) |
2008 – 2011
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Project Status |
Completed (Fiscal Year 2010)
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Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2010: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2009: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2008: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
|
Keywords | セロトニン / 下行性疼痛抑制系 / 慢性痛 / 抗うつ剤 / 三叉神経脊髄路核尾側亜核 / 延髄大縫線核 |
Research Abstract |
This study was designed to determine the effect of the serotonergic descending pain inhibitory system activation on chronic pain model rats. Chronic constriction injury (CCI) of the infraorbital nerve (ION) reduced the escape thresholds of mechanical stimulation to the facial area innervated by ION 3-7 days after. Electrical stimulation of mental nerve ipsilaretral to CCI side increased the escape thresholds of mechanical stimulation 12h after. In the same time, expression of serotonin was upregulated in the spinal trigeminal nucleus ipsilateral to stimulus side. These results suggested that the activation of the descending pain inhibitory system by mental nerve stimulation could relieve chronic notiception in ION-CCI model rats.
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Report
(4 results)
Research Products
(19 results)
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[Presentation] 小唾液腺分泌量の測定方法について2009
Author(s)
庄司憲明, 佐藤しづ子, 飯久保正弘, 古内寿, 阪本真弥, 笹野高嗣
Organizer
第4回Oral Medicine and IVR研究会
Place of Presentation
札幌
Year and Date
2009-10-23
Related Report
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