2008 Fiscal Year Annual Research Report
Project/Area Number |
16109006
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Research Institution | Hirosaki University |
Principal Investigator |
兼子 直 Hirosaki University, 大学院・医学研究科, 教授 (40106852)
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Co-Investigator(Kenkyū-buntansha) |
上野 伸哉 弘前大学, 大学院・医学研究科, 教授 (00312158)
岡田 元宏 三重大学, 大学院・医学系研究科, 教授 (10281916)
小島 俊男 理化学研究所, ゲノム情報比較解析研究チーム, チームリーダー (00311340)
廣瀬 伸一 福岡大学, 医学部, 教授 (60248515)
中川 和子 熊本大学, 大学院・医学薬学研究部, 教授 (20284747)
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Keywords | ゲノム / シグナル伝達 / 脳神経学 / 脳神経疾愚 / 遺伝子 |
Research Abstract |
1. 新たなてんかんの責任遺伝子同定 : これまで遺伝子異常を同定できなかったSMEI症例の20%にSCNIAや近接の遺伝子にchromosomal microdeletionが存在すること、JME患者で新たなMyolomin1/EFHC1遺伝子異常、孤発性のBNCでde novo KCNQ2の変異を報告し、BFICとLGI4遺伝子多型の関連を同定した。2. SCN1A遺伝子変異とてんかんの重症度の関連は、アミノ酸置換に関与するpolarity、molecular volume、polar requirement、hydropathy、isomeric pointの解析から推定できることを見いだした。3. てんかんの分子病態の解析 : 前頭葉てんかん遺伝子導入遺伝子改変ラット(S284L-TG)が世界初のモデル動物としての3基準をクリアしたラットであることを証明した。4. S284L-TGでてんかんの根治療法の可能性、根治療法のための標的タンパク群、治療臨界期の存在を同定した。より副作用の少ない治療コンパウンドを探索中である。またBFNCの責任遺伝子KCNQ3のW309R変異ではK^+電流が発生しないことを明らかにした。5. NONMEM法により、carbamazepine、clobazam、zonisamide、phenobarbitalのタリアランスを生理因子(年齢、性別、体重)、環境因子(AED投与量、併用薬)、遺伝因子(CYP多型)から算出するモデルを設定した。6. 世界に先駆けて開発したプロトタイプのてんかん遺伝子診断用DNA chip (resequence type)の最適な条件の設定、機能チェックを行っており、既にこのchipで、てんかん症例からSCN1Aの新たな変異を同定した。7. 個別化治療開発に必要な情報(AEDの作用機序、てんかんの責任遺伝子、CYP, transporter、脳内作用点の多型、HONMEMによるAEDクリアランスモデル)の整理、遺伝子異常毎のAEDへの反応性予測、AED治療に重要なCYP、transporterを選定した。遺伝情報に基づく個別化治療システムの基本フレームは2009年10月の国際シンポジウムPharmacogenomics in Epilepsyで提案する。
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Research Products
(66 results)
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[Journal Article] Topiramate and zonisamide prevent paradoxical intoxication induced by carbamazepine and phenytoin2009
Author(s)
Yamamura S, Hamaguchi T, Ohoyama K, Sugiura Y, Suzuki D, Kanehara S, Nakagawa M, Motomura E, Matsumoto T, Tanii H, Shiroyama T, Okada. M.
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Journal Title
Peer Reviewed
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[Journal Article] Effects of zotepine on extracellular levels of monoamine, GABA and glutamate in rat prefrontal cortex2009
Author(s)
Yamamura S, Ohoyama K, Hamaguchi T, Nakagawa M, Suzuki D, Matsumoto T, Motomura E, Tanii H, Shiroyama T, Okada M
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Journal Title
Br J Pharmacol (in press)
Peer Reviewed
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[Journal Article] Effects of zonisamide on neurotransmitter release associated with inositol triphosphate receptors2009
Author(s)
Yamamura S, Saito. H, Suzuki N, kashimoto S, Hamaguchi H, Ohoyama K, Suzuki D, Kanehara S, Nakagawa M, Shiroyama T, Okada M.
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Journal Title
Peer Reviewed
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[Journal Article] A de novo KCNQ2 mutation detected in non-familial benign neonatal convulsions2009
Author(s)
Ishii A, Fukuma G, Uehara. A, Miyajima T, Makita Y, Hamachi A, Yasukochi M, Inoue T, Yasumoto S, Okada M, Kaneko S, Mitsudome A, Hirose S.
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Journal Title
Brain Dev 31(1)
Pages: 27-33
Peer Reviewed
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[Journal Article] DSCAM deficiency causes loss of pre-inspiratoru neuron synchroneity and perinatal death2009
Author(s)
Amano K, Fujii M, Arata S, Tojima T, Ogawa M, Shimohata A, Furuichi T, Itohara S, Kamiguchi H, Korenberg J. R, Arata A, Yamakawa K.
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Journal Title
J Neurosci 29(9)
Pages: 2984-96
Peer Reviewed
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[Journal Article] Efhcl deficiency causes spontaneous myoclonus and increasedse izure susceptibility2009
Author(s)
Suzuki T, Miyamoto H, Nakahari T, Inoue I, Suemoto T, Jiang B, Hirota Y, Itohara S, Saido TC, Tsumoto T, Sawamoto K, Hensch TK, Delgado-Escueta AV, and Yamakawa K.
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Journal Title
Hum. Mol Genet 18(6)
Pages: 1099-1109
Peer Reviewed
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[Journal Article] Two novel CYP2D6*10 haplotypes as possible causes of a poor metabolic phenotype in Japanese2009
Author(s)
Matsunaga M, Yamazaki H, Kiyotani K, Iwano S, Saruwatari J, Nakagawa K, Soyama A, Ozawa S, Sawada J, Kashiyama E, Kinoshita M, Kamataki T.
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Journal Title
Drug Metab Dispos 37(4)
Pages: 699-701
Peer Reviewed
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[Journal Article] Genome-wide identification of febrile seizure and related epilepsy phenotype loci2008
Author(s)
Yoshida S, Miyashita A, Kuwano R, Kojima T, Sasaki T, Zhu G, Kanai K, Fujita H, Hirosa S, Kaneko S, & Epilepsy Genetic Study Group Japan.
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Journal Title
Epilepsy & Seizure 1(1)
Pages: 30-9
Peer Reviewed
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[Journal Article] Rats harboring S284L Chrna4 mutation show attenuation of synaptic and extrasynaptic GABAergic transmission and exhibit the nocturnal frontal lobe epilepsy phenotype2008
Author(s)
Zhu G, Okada M, Yoshida S, Ueno S, Mori F, Takahata T, Saito R, Miura Y, Kishi A, Tomiyama M, Sato A, Kojima T, Fukuma G, Wakabayashi K, Hase K, Ohno H, Kijima H, Takano Y, Mitsudome A, Kaneko S, Hirose S.
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Journal Title
J Neurosci 28(49)
Pages: 12465-76
Peer Reviewed
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[Journal Article] Dipole Source Analysis of Temporal Slow Waves in the Elderly2008
Author(s)
Motomura E, Inui K, Ogawa H, Nakase S, Hamanaka K, Honda T, Shiroyama T, Matsumoto T, Komori T, Okada M, Kakigi R.
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Journal Title
Neuropsychobiology 57
Pages: 9-13
Peer Reviewed
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[Journal Article] A functional near-infrared spectroscopy study on the basic word order in Japanese2008
Author(s)
Nishimura Y, Sugisaki K, Hattori N, Inokuchi Y, Nishimura Y, Ogawa M, Okada M, Okazaki Y, Taki W, Yamamoto T, Yoshida E, Avano S.
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Journal Title
Neuroreport 19
Pages: 915-19
Peer Reviewed
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[Journal Article] Microchromosomal deletions involving SCN1A and adjacent genes in severe myoclonic epilepsy in infancy2008
Author(s)
Wang JW, Kurahashi H, Ishii A, Kojima T, Ohfu M, Inoue T, Ogawa A, Yasumoto S, Oguni H, Kure S, Fujii T, Ito M, Okuno T, Shirasaka Y, Natsume J, Hasegawa A, Konagaya A, Kaneko S, Hirose S.
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Journal Title
Epilepsia 49(9)
Pages: 1528-34
Peer Reviewed
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[Journal Article] Novel mutations in Myocloninl/EFHC1 in sporadic and tamilial juvenile myoclonic epilepsy2008
Author(s)
Medina MT, Suzuki T, Alonso ME, Duron RM, Matinaz IE, Bailey JN, Bai D, Inoue Y, Yoshimura I, Kaneko S, Montoya MC, Ochoa AJ, Tanaka M, Machado-Salas J, Fujimoto S, Ito M, Hamano S, Sugita K, Ueda Y, Osawa M, Oguni H, Rubio-Donnadieu F, Yamakawa K, and Deidacio-Escueta AV.
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Journal Title
Neurology 70(22 pt 2)
Pages: 2137-44
Peer Reviewed
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[Journal Article] DNA variants in coding region of EFHC1 : SNPs do not associate with juvenile myoclonic epilepsy
Author(s)
Bai D, Bailey JN, Duron RM, Alonso ME, Medina MT, Martinez-Juarez IE, Suzuki T, Machado-Salas J, Ramos-Ramirez R, Tanaka M, Ortega RH, Lopez-Ruiz M, Rasmussen A, Ochoa A, Jara-Prado A, Yamakawa K, Delgado-Escueta AV.
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Journal Title
Epilepsia (Epub ahead of print)(掲載確定)
Peer Reviewed
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[Presentation] Applicability of new spin trap agent, 2-diphenylphosphinoyl-2-methyl-3, 4-dihydro-2H-pyrrole N-oxide, in biological system2008
Author(s)
Karakawa T, Muramoto Y, Mitani Y, Kitamado M, Iwanaga T, Nabeshima T, Maruyama K, Nakagawa K, Ishida K, Sasamoto K, Sato K.
Organizer
A Joint Conference of the 13th In Vivo ESR/EPR Spectroscopy & Imaging and the 10th International EPR Spin Trapping/Spin Labeling : Biomedical Redox Navigation (EPR2008)
Place of Presentation
Fukuoka, JAPAN
Year and Date
20080927-30
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[Presentation] Superoxide scavenging activity of pirfenidone-iron complex2008
Author(s)
Mitani Y, Muramoto Y, Karakawa T, Kitamado M, Iwanaga T, Nabeshima T, Maruyama K, Nakagawa K, Ishida K, Sasamoto K, Sato K.
Organizer
A Joint Conference of the 13th In Vivo ESR/EPR Spectroscopy & Imaging and the 10th Inte rnational EPR Spin Trapping/Spin Labeling : Biomedical Redox Navigation (EPR2008)
Place of Presentation
Fukuoka, JAPAN
Year and Date
20080927-30
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[Presentation] A De Novo KCNQ2 Mutation Detected in Benign Neonatal Convulsions : Possible Involvement Of Genes responsible for Rare Inherited Epilepsy in Idiopathic Epilepsy2008
Author(s)
Ishii A, Fukuma G, Uehara A, Yasukochi M, Miyajima T, Makita Y, Hamachi A, Yonetani M, Inoue T, Okada M, Kaneko S, and Hirose S.
Organizer
The 4^<th> Congress of Asian Society for Pediatric Research
Place of Presentation
Hawaii, USA
Year and Date
20080503-06
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[Book] Progress in genetics of severe myoclonic epilepsy in fancy. In : Fukuyama Y, Takahashi T, editors. Progress in Epileptic Disorders Biology of Seizere Susceptibility in Developing Brain. 1-32008
Author(s)
Kurahashi K, Wang J, Ishii A, Fukuma G, Hamachi A, Yonetani M, Ogawa A, Ohfu M, Inoue T, Yasumoto S, Hirose S.; 2008
Total Pages
734
Publisher
Paris : Editions John Libbey Eurotext Montrouge
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