2004 Fiscal Year Final Research Report Summary
Role of endocannabinoid in circulatory and nociceptive regulation systems
| Project/Area Number |
14370494
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Anesthesiology/Resuscitation studies
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| Research Institution | Kitasato University |
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Principal Investigator |
HOKA Sumio Kitasato University, School of Medicine, Professor, 医学部, 教授 (60150447)
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| Co-Investigator(Kenkyū-buntansha) |
OKAMOTO Hirotsugu Kitasato University, School of Medicine, Associate Professor, 医学部, 助教授 (50224077)
ARAI Masayasu Kitasato University, School of Medicine, Assistant Professor, 医学部, 講師 (50222724)
ARAI Tamie Kitasato University, School of Medicine, Research Associate, 医学部, 助手 (00245408)
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| Project Period (FY) |
2002 – 2004
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| Keywords | cannabinoid / nociception / microcirculation / inflammation / leukocyte / migration / adhesion / pain control |
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| Research Abstract |
This study was designed to investigate possible roles of cannabinoid agonists and antagonists in circulatory and nociceptive regulation systems in the body. For this purpose we examined the effects of cannabinoid agonists and antagonists on neutrophil behaviors in response to inflammatory stimulation. The neutrophil behavior was observed in the microvasculature of hamster cheek pouch using a trans-illumination microscope. Superfusion of lekotrience B_4 caused an increase in the number of neutrophils adhering the endothelium and migrating through the endothelium outside the venules. The migration induced by lekotrience B_4 was significantly attenuated in hamsters receiving intravenous infusion of WIN55212, a cannabinoid agonist, prior to the leukotriene B_4 superfusion. These effects were abolished by AM251 and AM630, cannabinoid antagonists. These results suggest that augmentation of the cannabinoid system could produce an inhibition of neutrophil migration and contribute to suppression of inflammatory derangement and hyperalgesia.
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Research Products
(19 results)
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[Journal Article] Altered bupivacaine pharmacokinetics by MgSO4 in rats.2004
Author(s)
Okutomi, T., Saito, M., Matsumoto, Y., Shimizu, M., Fukuoka, M., Hoka, S.
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Journal Title
Can J Anaesth 51
Pages: 93-94
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] Migration of neutrophils elicited by leukotriene B4 is inhibited by fasudil, a Rho-kinase inhibitor, in the microvasculature of hamster cheek pouch.2004
Author(s)
Ozawa, A., Nara, Y., Kimotsuki, H., Nakahara, E., Okamoto, H., Hoka, S.
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Journal Title
Circ Cont 25
Pages: 267-271
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] Amelioration of hyperalgesia by kinin receptor antagonists or kininogen deficiency in chronic constriction nerve injury in rats.2003
Author(s)
Yamaguchi-Sase, S., Hayashi, I., Okamoto, H., Nara, Y., Matsuzaki, S., Hoka, S., Majima, M.
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Journal Title
Inflamm Res 52
Pages: 164-169
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] Overexpression of Ca2+-permeable AMPA receptor promotes delayed cell death of hippocampal CA1 neurons following transient forebrain ischemia.2003
Author(s)
Anzai, T., Tsuzuki, K., Yamada, N., Hayashi, T., Iwakuma, M., Inada, K., Kameyama, K., Hoka, S., Saji, M.
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Journal Title
Neurosci Res 46
Pages: 41-51
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] Role of kinin and prostaglandin in cutaneous thermal nociception.2002
Author(s)
Matsuzaki, S., Hayashi, I., Nara, Y., Komata, K., Yamanaka, M., Okamoto, H., Hoka, S., Majima, M.
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Journal Title
Int Immunopharmacol 2(13-14)
Pages: 2005-2012
Description
「研究成果報告書概要(欧文)」より
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