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Cardiovascular effects of intravenous colforsin in normal and acute respiratory acidosis canine models : A dose-response study
http://hdl.handle.net/10659/00006678
http://hdl.handle.net/10659/00006678e31c80c8-8183-41a5-b7a0-7229a43752cc
名前 / ファイル | ライセンス | アクション |
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R-2020-215_sano.pdf (946.2 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2020-11-18 | |||||
タイトル | ||||||
タイトル | Cardiovascular effects of intravenous colforsin in normal and acute respiratory acidosis canine models : A dose-response study | |||||
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 |
伊丹, 貴晴
× 伊丹, 貴晴× 華園, 究× Oyama, Norihiko× Sano, Tadashi× 蒔田, 浩平× 山下, 和人 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | In acidosis, catecholamines are attenuated, and higher doses are often required to improve cardiovascular function. Colforsin activates adenylate cyclase in cardiomyocytes without beta-adrenoceptor. Here, six beagles were administered colforsin or dobutamine four times during eucapnia (partial pressure of arterial carbon dioxide 35-40 mm Hg; normal) and hypercapnia (ibid 90-110 mm Hg; acidosis) conditions. The latter was induced by CO_2 inhalation. Anesthesia was induced with propofol and maintained with isoflurane. Cardiovascular function was measured by thermodilution and a Swan-Ganz catheter at baseline and 60 min after 0.3 μg/kg/min (low), 0.6 μg/kg/min (middle), and 1.2 μg/kg/min (high) colforsin administration. The median pH was 7.38 [range 7.33-7.42] and 7.01 [range 6.96-7.08] at baseline in the Normal and Acidosis conditions, respectively. Endogenous adrenaline and noradrenaline levels at baseline were significantly (P < 0.05) higher in the Acidosis than in the Normal condition. Colforsin induced cardiovascular effects similar to those caused by dobutamine. Colforsin increased cardiac output in the Normal condition (baseline: 3.9 ± 0.2 L/kg/m^2 [mean ± standard error], low: 5.2 ± 0.4 L/kg/min2, middle: 7.0 ± 0.4 L/kg/m^2, high: 9.4 ± 0.2 L/kg/m^2; P < 0.001) and Acidosis condition (baseline: 6.1 ± 0.3 L/kg/m^2, low: 6.2 ± 0.2 L/kg/m^2, middle: 7.2 ± 0.2 L/kg/m^2, high: 8.3 ± 0.2 L/kg/m^2; P < 0.001). Colforsin significantly increased heart rate and decreased systemic vascular resistance compared to values at baseline. Both drugs increased pulmonary artery pressure, but colforsin (high: 13.3 ± 0.6 mmHg in Normal and 20.1 ± 0.2 mmHg in Acidosis) may have lower clinical impact on the pulmonary artery than dobutamine (high: 19.7 ± 0.6 in Normal and 26.7 ± 0.5 in Acidosis). Interaction between both drugs and experimental conditions was observed in terms of cardiovascular function, which were similarly attenuated with colforsin and dobutamine under acute respiratory acidosis. | |||||
書誌情報 |
PLOS ONE 巻 14, 号 7, p. e0213414-1-e0213414-14, 発行日 2019-07 |
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DOI | ||||||
関連タイプ | isIdenticalTo | |||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.1371/journal.pone.0213414 | |||||
権利 | ||||||
権利情報 | © 2019 Itami et al. | |||||
権利(URI) | ||||||
権利情報 | http://creativecommons.org/licenses/by/4.0/ | http://creativecommons.org/licenses/by/4.0/ | |||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
出版者 | ||||||
出版者 | PLOS | |||||
資源タイプ | ||||||
内容記述タイプ | Other | |||||
内容記述 | Article |