Research for the molecular mechanisms underlying neuronal plastic changes and alteration of emotional aspect under the chronic pain state
Project/Area Number |
19390067
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Research Category |
Grant-in-Aid for Scientific Research (B)
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Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
General pharmacology
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Research Institution | Hoshi University |
Principal Investigator |
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Co-Investigator(Kenkyū-buntansha) |
NARITA Minoru 星薬科大学, 薬学部, 准教授 (40318613)
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Project Period (FY) |
2007 – 2008
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Project Status |
Completed (Fiscal Year 2008)
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Budget Amount *help |
¥9,620,000 (Direct Cost: ¥7,400,000、Indirect Cost: ¥2,220,000)
Fiscal Year 2008: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2007: ¥7,280,000 (Direct Cost: ¥5,600,000、Indirect Cost: ¥1,680,000)
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Keywords | 疼痛刺激 / 痛覚伝導路 / fMRI / PKCγ / 神経障害性疼痛 / 炎症性疼痛 / 大脳皮質 / 脳内報酬系 / 精神依存 / β-endorphin / 中脳辺縁dopamine神経系 / Opioid / 腹側被蓋野 |
Research Abstract |
本研究では、慢性疼痛下におけるopioid 精神依存不形成の分子機構ならびに持続する末梢からの疼痛刺激により引き起こされる脳高次機能の変化について明らかにすることを目的として、脳機能変化の可視化を試み、疼痛刺激に応じて活性化する脳部位の検討を行った。申請者は、functional magnetic resonance imaging (fMRI) を用いて blood oxygenation level dependent (BOLD) 法に従い、脊髄 PKCγ の活性化による神経障害性疼痛様刺激および炎症性疼痛刺激による脳機能変化を可視化することに成功した。また、持続的な痛み刺激により、腹側被蓋野において内因性 μ-opioid 受容体リガンドである β-endorphin が持続的に遊離した結果、μ-opioid 受容体の機能低下、さらにはそれに続く dopamine 神経の活性低下が引き起こされていることが明らかとなった。こうした変化が、慢性疼痛下におけるopioid 精神依存不形成機構の一因である可能性が示唆された。
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Report
(3 results)
Research Products
(117 results)
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[Journal Article] Usefulness of antidepressants for improving the neuropathic pain-like state and pain-induced anxiety through actions at different brain sites.2008
Author(s)
Matsuzawa-Yanagida K, Narita M, Nakajima M, Kuzumaki N, Niikura K, Nozaki H, Takagi T, Tamai E, Hareyama N, Terada M, Yamazaki M, Suzuki T.
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Journal Title
Neuropsychophrmacology 33
Pages: 1952-65
Related Report
Peer Reviewed
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[Journal Article] Suppression of dopamine-related side effects of morphine by aripiprazole, a dopamine system stabilizer.2008
Author(s)
Narita M, Takei D, Shiokawa M, Tsurukawa Y, Matsushima Y, Nakamura A, Takagi S, Asato M, Ikegami D, Narita M, Amano T, Niikura K, Hashimoto K, Kuzumaki N, Suzuki T.
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Journal Title
Eur. J. Pharmacol. 600
Pages: 105-109
Related Report
Peer Reviewed
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[Journal Article] Usefuiness of antidepressants for improving the neuropathic pain-like state and pain-induced anxiety through actions at different brain sites2007
Author(s)
Matsuzawa-Yanagida K, Narita M, Nakajima M, Kuzumaki N, NiikuTa K, Nozaki H, Takagi T, Tamai E, Hareyama N, Terada M, Yamazaki M and Suzuki T.
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Journal Title
Neuropsychophrmacology in press
Related Report
Peer Reviewed
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[Presentation] 疼痛制御機構に関する研究(第97報) : 慢性疼痛が引き起こす内因性GABA神経伝達効率の抑制に伴ったベンゾジアゼピン系睡眠薬の低下2009
Author(s)
新倉慶一, 成田 年, 成田道子, 古谷雅治, 松島勇紀, 高木茂実, 山下 哲, 磯野京子, 村田香奈, 葛巻直子, 鈴木 勉
Organizer
第82回日本薬理学会年会
Place of Presentation
横浜
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[Presentation] 薬物依存の性差2008
Author(s)
鈴木 勉
Organizer
性差医学・医療学会第 1 回学術集会
Place of Presentation
鹿児島
Year and Date
2008-02-10
Related Report
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[Presentation] Usefulness of aripiprazole for reducing morphine-induced nausea and rewarding effect2008
Author(s)
Suzuki, T 1 ., Takei, D 1., Shiokawa, M1, 2., Tsurukawa, Y 1., Nakamura, A 1.,Hashimoto, K 1, Kuzumaki, N 1., Suzuki,M 1., Inoue, T 2. and Narita, M 1
Organizer
The College on Problems of Drug Dependence (CPDD) 70th Annual Scientific meeting
Place of Presentation
Puerto Rico
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[Presentation] Implication of increased gliotransmitdon in the suppression of opioid reward under a chronic painrlike state2007
Author(s)
Narita, M., Nanjo, K., Niikura, K., Kuzumaki, N., Narita, M, Suzuki, M, and Suzukl, T.
Organizer
International Narcotics Research Conference(INRC)2007
Place of Presentation
Berlin
Related Report
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[Presentation] Opioid reward and brain orexinergic transmission2007
Author(s)
Niikura, K, Narita, M, Nagumo, Y., Narita, M., Mlyatake, M., Kurahashi, K and Suzukl, T.
Organizer
International Narcotics Research Conference(INRC)2007
Place of Presentation
Berlin
Related Report
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