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Pharmacological preconditioning in type 2 diabetic rat hearts: the roles of mitochondrial ATP-sensitive potassium channels and the phosphatidylinositol 3-kinase-Akt pathway.
http://hdl.handle.net/10069/22208
http://hdl.handle.net/10069/222089a513477-9320-45ce-a552-b89519e3da91
名前 / ファイル | ライセンス | アクション |
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CDT23_4_263.pdf (483.5 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2009-10-02 | |||||
タイトル | ||||||
タイトル | Pharmacological preconditioning in type 2 diabetic rat hearts: the roles of mitochondrial ATP-sensitive potassium channels and the phosphatidylinositol 3-kinase-Akt pathway. | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Olprinone | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | isoflurane | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | diabetes | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | mitochondrial ATP-sensitive potassium channels | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | phosphatidylinositol 3-kinase-Akt | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
著者 |
Matsumoto, Shuhei
× Matsumoto, Shuhei× Cho, Sungsam× Tosaka, Shinya× Ureshino, Hiroyuki× Maekawa, Takuji× Hara, Tetsuya× Sumikawa, Koji |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | PURPOSE: The authors examined whether olprinone, a phosphodiesterase type 3 inhibitor, or isoflurane, a volatile anesthetic, could protect the heart against myocardial infarction in type 2 diabetic rats and whether the underlying mechanisms involve protein kinase C (PKC), mitochondrial ATP-sensitive potassium (m-K(ATP)) channels, or the phosphatidylinositol 3-kinase (PI3K)-Akt pathway. METHODS: All rats underwent 30 min of coronary artery occlusion followed by 2 h of reperfusion. Wistar rats received isoflurane or olprinone before ischemia with or without the PKC inhibitor chelerythrine (CHE), the m-K(ATP) channel blocker 5-hydroxydecanoic acid (5HD), or the PI3K-Akt inhibitor LY294002 (LY). Goto-Kakizaki (GK) rats were randomly assigned to receive isoflurane or olprinone. In another group, GK rats received LY before the olprinone. RESULTS: In the Wistar rats, both isoflurane (38 +/- 11%) and olprinone (40 +/- 11%) reduced infarct size as compared to the control group (59 +/- 8%). In the GK rats, olprinone (41 +/- 9%) but not isoflurane (53 +/- 11%) reduced infarct size as compared to the GK control group (58 +/- 14%). The beneficial effects of olprinone were blocked by LY (58 +/- 14%). In the Wistar rats, CHE, 5HD, and LY prevented isoflurane-induced reductions of infarct size. On the other hand, LY but not CHE or 5HD prevented olprinone-induced reductions of infarct size. CONCLUSIONS: Olprinone but not isoflurane protects the heart against myocardial infarction in type 2 diabetic rats. The olprinone-induced cardioprotective effect is mediated by the PI3K-Akt pathway but not PKC or m-K(ATP) channels. | |||||
書誌情報 |
Cardiovascular Drugs and Therapy 巻 23, 号 4, p. 263-270, 発行日 2009-08 |
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出版者 | ||||||
出版者 | Springer | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 09203206 | |||||
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収録物識別子タイプ | ISSN | |||||
収録物識別子 | 1573-7241 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA10691796 | |||||
PubMed番号 | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | PMID | |||||
関連識別子 | 19597978 | |||||
DOI | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1007/s10557-009-6184-5 | |||||
権利 | ||||||
権利情報 | c Springer Science+Business Media, LLC 2009 | |||||
権利 | ||||||
権利情報 | The original publication is available at www.springerlink.com | |||||
著者版フラグ | ||||||
出版タイプ | AM | |||||
出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||
引用 | ||||||
内容記述タイプ | Other | |||||
内容記述 | Cardiovascular Drugs and Therapy, 23(4), pp.263-270; 2009 |