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Subzero nonfreezing preservation has been believed to be a beneficial method because of the lower metabolic rate. The purpose of this study was to evaluate the hemodynamic and metabolic effects of rat heart preservation in a variable magnetic field without cryoprotectants. METHODS: Rat hearts were perfused ex vivo for 120 min after 24-hr preservation in two groups (n=6 each): (1) conventional storage group, in which the hearts were stored at 4°C, and (2) the subzero group, in which the hearts were preserved at-3°C in a variable magnetic field. RESULTS: Reperfusion cardiac performance after preservation was significantly preserved in the subzero group compared with the conventional group with respect to heart rate, coronary flow, the peak positive dP/dt, and the peak negative dP/dt (P\u003c0.05). Edema after reperfusion was significantly decreased (P\u003c0.05), and the adenosine triphosphate level was higher in the subzero group (P\u003c0.05). CONCLUSIONS: The rat hearts preserved in a variable magnetic field at-3°C showed better hemodynamic and metabolic performance than those preserved using conventional storage at 4°C. 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Subzero 24-hr nonfreezing rat heart preservation: A novel preservation method in a variable magnetic field
http://hdl.handle.net/2297/32861
http://hdl.handle.net/2297/328614b5979ed-cadb-4221-b4d9-95c60e22b703
名前 / ファイル | ライセンス | アクション |
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ME-PR-KATO-H-473.pdf (421.8 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2017-10-03 | |||||
タイトル | ||||||
タイトル | Subzero 24-hr nonfreezing rat heart preservation: A novel preservation method in a variable magnetic field | |||||
言語 | ||||||
言語 | eng | |||||
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 |
Kato, Hiroki
× Kato, Hiroki× Tomita, Shigeyuki× Yamaguchi, Shoujiro× Ohtake, Hiroshi× Watanabe, Go |
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書誌情報 |
Transplantation 巻 94, 号 5, p. 473-477, 発行日 2012-09-15 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0041-1337 | |||||
NCID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA00868935 | |||||
DOI | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1097/TP.0b013e3182637054 | |||||
出版者 | ||||||
出版者 | Lippincott, Williams & Wilkins | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | BACKGROUND: A new supercooling system using a variable magnetic field has been recently developed. Subzero nonfreezing preservation has been believed to be a beneficial method because of the lower metabolic rate. The purpose of this study was to evaluate the hemodynamic and metabolic effects of rat heart preservation in a variable magnetic field without cryoprotectants. METHODS: Rat hearts were perfused ex vivo for 120 min after 24-hr preservation in two groups (n=6 each): (1) conventional storage group, in which the hearts were stored at 4°C, and (2) the subzero group, in which the hearts were preserved at-3°C in a variable magnetic field. RESULTS: Reperfusion cardiac performance after preservation was significantly preserved in the subzero group compared with the conventional group with respect to heart rate, coronary flow, the peak positive dP/dt, and the peak negative dP/dt (P<0.05). Edema after reperfusion was significantly decreased (P<0.05), and the adenosine triphosphate level was higher in the subzero group (P<0.05). CONCLUSIONS: The rat hearts preserved in a variable magnetic field at-3°C showed better hemodynamic and metabolic performance than those preserved using conventional storage at 4°C. Copyright © 2012 Lippincott Williams &Wilkins. | |||||
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 |