Effect of sleep on cortical excitatory and inhibitory mechanism of pathological brain: physiological analysis of epilepsy and myoclonus
Project/Area Number |
25515001
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Multi-year Fund |
Section | 一般 |
Research Field |
睡眠科学
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Research Institution | Kyoto University |
Principal Investigator |
Hitomi Takefumi 京都大学, 医学(系)研究科(研究院), 助教 (50402904)
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Co-Investigator(Kenkyū-buntansha) |
CHIN Kazuo 京都大学, 医学研究科, 特定教授 (90197640)
IKEDA Akio 京都大学, 医学研究科, 特定教授 (90212761)
MATSUMOTO Riki 京都大学, 医学研究科, 特定准教授 (00378754)
SAWAMOTO Nobukatsu 京都大学, 医学研究科, 講師 (90397547)
INOUCHI Morito 京都大学, 医学研究科, 特定助教 (30532600)
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Project Period (FY) |
2013-04-01 – 2016-03-31
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Project Status |
Completed (Fiscal Year 2015)
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Budget Amount *help |
¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2015: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2014: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2013: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
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Keywords | 病態脳 / 睡眠 / てんかん / 不随意運動 / ミオクローヌス |
Outline of Final Research Achievements |
Introduction: Generalized epilepsy and cortical tremor are two major symtpoms of benign adult familial myoclonus epilepsy (BAFME). Effect of sleep on cortical excitatory and inhibitory mechanism of epilepsy ang cortical tremor remains unknown. Objectives: To clarify the effect of sleep on cortical hyperexcitability of epilepsy and myoclonus. Methods: In 6 EEGs and 1 PSG of 6 BAFME patients, frequency of epileptiform discharges during awake period was compared with those during sleep period. Results: The frequency of epileptiform discharges during awake period was higher than that during sleep period, regardless of light sleep, slow wave sleep and REM sleep. Discussion: Reduction of epileptiform discharges during sleep was observed in BAFME, which was similar to those in Unverricht-Lundborg disease. Taken all together, as for the brain dysfunction and epileptogenicity, BAFME has mild but similar pathophysiological mechanism to that of progressive myoclonus epilepsy.
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Report
(4 results)
Research Products
(52 results)
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[Journal Article] Impact of Obstructive Sleep Apnea on Liver Fat Accumulation According to Sex and Visceral Obesity.2015
Author(s)
Toyama Y, Tanizawa K, Kubo T, Chihara Y, Harada Y, Murase K, Azuma M, Hamada S, Hitomi T, Handa T, Oga T, Chiba T, Mishima M, Chin K.
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Journal Title
PLoS One.
Volume: 10
Issue: 6
Pages: e0129513-e0129513
DOI
NAID
Related Report
Peer Reviewed / Open Access
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[Journal Article] Sleep modulates cortical connectivity and excitability in humans: Direct evidence from neural activity induced by single-pulse electrical stimulation.2015
Author(s)
Usami K, Matsumoto R, Kobayashi K, Hitomi T, Shimotake A, Kikuchi T, Matsuhashi M, Kunieda T, Mikuni N, Miyamoto S, Fukuyama H, Takahashi R, Ikeda A.
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Journal Title
Hum Brain Mapp
Volume: 36(11)
Issue: 11
Pages: 4714-4729
DOI
Related Report
Peer Reviewed / Open Access
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[Journal Article] The Additive Impact of Periodic Limb Movements during Sleep on Inflammation in Obstructive Sleep Apnea Patients.2014
Author(s)
Murase K, Hitomi T, Hamada S, Azuma M, Toyama Y, Harada Y, Tanizawa K, Handa T, Yoshimura C, Oga T, Mishima M, Chin K.
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Journal Title
Ann Am Thorac Soc.
Volume: 11
Issue: 3
Pages: 375-82
DOI
Related Report
Peer Reviewed / Open Access
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[Journal Article] Are multifocal motor neuropathy patients underdiagnosed? An epidemiological survey in Japan.2014
Author(s)
Miyashiro A, Matsui N, Shimatani Y, Nodera H, Izumi Y, Kuwabara S, Imai T, Baba M, Komori T, Sonoo M, Mezaki T, Kawamata J, Hitomi T, Kohara N, Arimura K, Hashimoto S, Arisawa K, Kusunoki S, Kaji R.
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Journal Title
Muscle Nerve
Volume: 49
Pages: 357-361
Related Report
Peer Reviewed
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[Journal Article] Long-term follow-up of cortical hyperexcitability in Japanese Unverricht-Lundborg disease.2014
Author(s)
Kobayashi K, Hitomi T, Matsumoto R, Kondo T, Kawamata J, Matsuhashi M, Hashimoto S, Ikeda H, Koide Y, Inoue Y, Takahashi R, Ikeda A.
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Journal Title
Seizure
Volume: 23
Issue: 9
Pages: 746-750
DOI
NAID
Related Report
Peer Reviewed / Open Access
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[Journal Article] Measurement of dyspnea in patients with obstructive sleep apnea2013
Author(s)
Aihara K, Oga T, Yoshimura C, Hitomi T, Chihara Y, Harada Y, Murase K, Toyama Y, Tanizawa K, Handa T, Tsuboi T, Mishima M, Chin K
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Journal Title
Sleep Breath
Volume: 17(2)
Issue: 2
Pages: 753-761
DOI
Related Report
Peer Reviewed
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[Journal Article] A urine biomarker for severe OSA patients: lipocaline-type prostaglandin D synthase.2013
Author(s)
Chihara Y, Chin K, Aritake K, Harada Y, Toyama Y, Murase K, Yoshimura C, Hitomi T, Oga T, Mishima M, Urade Y.
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Journal Title
Eur Respir J
Volume: in press
Issue: 6
Pages: 1563-1574
DOI
Related Report
Peer Reviewed
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[Journal Article] Association between plasma neutrophil gelatinase associated lipocalin level and obstructive sleep apnea or nocturnal intermittent hypoxia2013
Author(s)
Murase K, Mori K, Yoshimura C, Aihara K, Chihara Y, Azuma M, Harada Y, Toyama Y, Tanizawa K, Handa T, Hitomi T, Oga T, Mishima M, Chin K
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Journal Title
PLoS One
Volume: 8
Issue: 1
Pages: e54184-e54184
DOI
NAID
Related Report
Peer Reviewed
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[Journal Article] Bereitschaftspotential augmentation by neuro-feedback training in Parkinson's disease.2013
Author(s)
Fumuro T, Matsuhashi M, Mitsueda T, Inouchi M, Hitomi T, Nakagawa T, Matsumoto R, Kawamata J, Inoue H, Mima T, Takahashi R, Ikeda A.
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Journal Title
Clin Neurophysiol
Volume: 124
Issue: 7
Pages: 1388-405
DOI
NAID
Related Report
Peer Reviewed
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