Effects and application of endodontics chemicals: Function of between received oxious stimulus and reactive dentin formaing.
Project/Area Number |
24792035
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Research Category |
Grant-in-Aid for Young Scientists (B)
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Allocation Type | Multi-year Fund |
Research Field |
Conservative dentistry
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Research Institution | Tokyo Dental College |
Principal Investigator |
SATO Masaki 東京歯科大学, 歯学部, 助手 (80598855)
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Project Period (FY) |
2012-04-01 – 2014-03-31
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Project Status |
Completed (Fiscal Year 2013)
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Budget Amount *help |
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2013: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2012: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
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Keywords | 歯内治療薬 / 象牙芽細胞 / TRPチャネル / カルシウム / 電気生理 / 培養 / 国際情報交換 |
Research Abstract |
Eugenol has been used since ancient times as a local anesthetic for toothaches. Despite its long history of use, relatively little is known about its physiological effects. In the present study, we investigated the effects of eugenol on intracellular free Ca2+ concentration ([Ca2+]i) in mouse odontoblasts. Application of eugenol increased [Ca2+]i transiently in a concentration-dependent manner. Removal of extracellular Ca2+ abolished this effect, indicating that eugenol activated Ca2+ entry. Capsazepine, an antagonist of TRPV1 channels, inhibited the increase in [Ca2+]i. Additionally, after a transient increase in [Ca2+]i, continuous administration of eugenol induced sensitizing and subsequent desensitizing effects on Ca2+ entry via TRPV1 channels. Therefore, eugenol modulates the sensitization/desensitization of TRPV1 channel activation in odontoblasts, which may mediate the analgesic effects of eugenol on dentinal sensitivity.
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Report
(3 results)
Research Products
(48 results)
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[Journal Article] Plasma membrane stretch activates transient receptor potential vanilloid and ankyrin channels in Merkel cells from hamster buccal mucosa2014
Author(s)
Soya, M., Sato, M., Sobhan, U., Tsumura, M., Ichinohe, T., Tazaki, M., and Shibukawa, Y
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Journal Title
Cell Calcium
Volume: 55
Pages: 208-218
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[Journal Article] Functional Expression of TRPM8 and TRPA1 Channels in Rat Odontoblasts2013
Author(s)
Tsumura, M., Sobhan, U., Sato, M., Shimada, M., Nishiyama, A., Kawaguchi, A., Soya, M., Kuroda, H., Tazaki, M., and Shibukawa, Y
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[Journal Article] Immunolocalization and distribution of functional temperature-sensitive TRP channels in salivary glands2013
Author(s)
Sobhan, U., Sato, M., Shinomiya, T., Okubo, M., Tsumura, M., Muramatsu, T., Kawaguchi, M., Tazaki, M., and Shibukawa, Y
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Journal Title
Cell Tissue Res
Volume: 354
Pages: 507-519
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[Journal Article] Hypotonic-induced stretching of plasma membrane activates transient receptor potential vanilloid channels and sodium-calcium exchangers in mouse odontoblasts2013
Author(s)
Sato, M., Sobhan, U., Tsumura, M., Kuroda, H., Soya, M., Masamura, A., Nishiyama, A., Katakura, A., Ichinohe, T., Tazaki, M., et al
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Journal Title
J. Endod
Volume: 39
Pages: 779-787
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[Journal Article] Sodium-calcium exchangers in rat trigeminal ganglion neurons2013
Author(s)
Kuroda, H., Sobhan, U., Sato, M., Tsumura, M., Ichinohe, T., Tazaki, M., and Shibukawa, Y
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Journal Title
Mol. Pain
Volume: 9
Pages: 22-22
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[Journal Article] Hypotonic-induced stretching of plasma membrane activates TRPV channels and sodium-calcium exchangers in mouse odontoblasts2013
Author(s)
Masaki Sato, Ubaidus Sobhan, Maki Tsumura, Hidetaka Kuroda, Manabu Soya, Aya Masamura, Akihiro Nishiyama, Akira Katakura, Tatsuya Ichinohe, Masakazu Tazaki, Yoshiyuki Shibukawa
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Journal Title
Journal of endodontics
Volume: 未定
Issue: 6
Pages: 779-787
DOI
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Peer Reviewed
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[Journal Article] TRPV1-mediated calcium signal couples with cannabinoid receptors and sodium-calcium exchangers in rat odontoblasts2012
Author(s)
Tsumura, M., Sobhan, U., Muramatsu, T., Sato, M., Ichikawa, H., Sahara, Y., Tazaki, M., and Shibukawa, Y
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Journal Title
Cell Calcium
Volume: 52
Pages: 124-136
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[Presentation] 象牙芽細胞系細胞における機械刺激受容と三叉神経節細胞共培養系における伝達機構 Oral presentation2012
Author(s)
Sato M., Tsumura M., Sobhan U, Kuroda H., Soya M., Masamura A., Tazaki M., Ihinohe T., Shibukawa Y
Organizer
11th Kushiro Neuroscience Workshop
Place of Presentation
Kushiro, Hokkaido, Japan
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[Presentation] NCX expression in enamel/dentin-forming cells. Poster presentation2011
Author(s)
Shibukawa Y., Tsumura M., Sato M., Sobhan U., Muramatsu T., Matsuda T., Baba A., Tazaki M
Organizer
6th International Conference on Sodium Calcium Exchanger 2011
Place of Presentation
Lacco Ameno, Ischia Island, Naples, Italy
Related Report
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[Presentation] Functional coupling between TRPV1, CB1 and NCXs in rat odontoblasts. Poster presentation (33)2011
Author(s)
Tsumura M., Shibukawa Y., Muramatsu T., Sobhan U., Sato M, Ichikawa H., Tazaki T
Organizer
6th International Conference on Sodium Calcium Exchanger 2011
Place of Presentation
Lacco Ameno, Ischia Island, Naples, Italy
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