| Project/Area Number |
25670826
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Single-year Grants |
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| Research Field |
Prosthodontics/ Dental materials science and
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| Research Institution | Kyushu Dental College |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
NAKAMOTO Tetsuji 九州歯科大学, 歯学部, 准教授 (30514989)
MASAKI Chihiro 九州歯科大学, 歯学部, 助教 (60397940)
KONDO Yusuke 九州歯科大学, 歯学部, 助教 (00611287)
MUKAIBO Taro 九州歯科大学, 歯学部, 助教 (50635117)
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| Project Period (FY) |
2013-04-01 – 2014-03-31
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2013: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
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| Keywords | ストレスマーカー / ベンゾジアゼピン / ブラキシズム / パラファンクション / 睡眠 / 遺伝子多型 / 睡眠時ブラキシズム / 精神的ストレス |
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| Research Abstract |
Peripheral-type benzodiazepine receptor (PBR) gene polymorphism is associated with stress sensitivity, but it is not yet clear whether polymorphisms in this gene have any influence on psychological stress before and after sleep bruxism. The present study was performed to examine the relationship between sleep bruxism and PBR gene polymorphism. The PBR gene was amplified after collection of DNA from oral mucosa cells. Polymorphisms were identified by direct sequencing after PBR gene amplification by PCR. We also measured masseter muscle activity during sleep using portable electromyography to evaluate sleep bruxism. The number of bruxism events was significantly higher in the G/A than the G/G group. Changes in salivary CgA levels were significantly lower in the G/A than G/G group.
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