Crocin, a carotenoid pigment, promotes non-rapid eye movement sleep
Project/Area Number |
25670047
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Research Category |
Grant-in-Aid for Challenging Exploratory Research
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Allocation Type | Multi-year Fund |
Research Field |
Natural medicines
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Research Institution | University of Tsukuba |
Principal Investigator |
ARITAKE Kosuke 筑波大学, 国際統合睡眠医科学研究機構, 准教授 (70390804)
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Project Period (FY) |
2013-04-01 – 2015-03-31
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Project Status |
Completed (Fiscal Year 2014)
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Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2014: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2013: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
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Keywords | ノンレム睡眠 / カロテノイド色素 / ヒスタミンH1受容体 / サイクロデキストリングルカノトランスフェラーゼ / クロシン / サフラン / ヒスタミン / カロテノイド |
Outline of Final Research Achievements |
We compared the effects of crocin in wild-type mice, mice lacking of histamine H1 receptor (H1R) gene, dopamine D2 receptor (D2R) gene or adenosine A1 receptor (A1R) gene by monitoring the locomotor activities and electro encephalogram. In wild-type mice, D2R KO and A1R KO, crocin significantly decreased the locomotor activities and increased the time spent in non-REM sleep. In H1R KO mice, effects of crocin on locomotor activities and non-REM sleep were suppressed. Crocin did not show any specific binding affinities against H1R nor inhibited the histamine release. These results strongly suggested that crocin indirectly suppressed histamine arousal system to induce sleep. We found enzymatically synthesized crocin-glycoside shows better property in chemical stabilities and photo stabilities than crocin.
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Report
(3 results)
Research Products
(11 results)
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[Journal Article] Opposing immunomodulatory roles of prostaglandin D2 during theprogression of skin inflammation.2014
Author(s)
Hana Sarashina, Yoshiki Tsubosaka, Keisuke Omori, Kosuke Aritake, Takayuki Nakagawa, Masatoshi Hori, Hiroyuki Hirai, Masataka Nakamura, Shuh Narumiya, Yoshihiro Urade, Hiroshi Ozaki and Takahisa Murata
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Journal Title
The Journal of Immunology
Volume: 192(1)
Issue: 1
Pages: 459-65
DOI
Related Report
Peer Reviewed / Open Access
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[Journal Article] Mast cell maturation is driven via a group III phospholipase A2-prostaglandin D2-DP1 receptor paracrine axis.2013
Author(s)
Taketomi Y, Ueno N, Kojima T, Sato H, Murase R, Yamamoto K, Tanaka S, Sakanaka M, Nakamura M, Nishito Y, Kawana M, Kambe N, Ikeda K, Taguchi R, Nakamizo S, Kabashima K, Gelb MH, Arita M, Yokomizo T, Nakamura M, Watanabe K, Hirai H, Nakamura M, Okayama Y, Ra C, Aritake K et al
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Journal Title
Nat Immunol.
Volume: 14
Issue: 1
Pages: 554-563
DOI
Related Report
Peer Reviewed
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