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Effects of vasodilators on beat-to-beat and every fifteen minutes blood pressure variability induced by noradrenaline infusion in rats
http://hdl.handle.net/10458/0002000509
http://hdl.handle.net/10458/000200050996c231b5-00d1-48b8-95e7-fc2152258376
名前 / ファイル | ライセンス | アクション |
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article (665 KB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2024-02-22 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Effects of vasodilators on beat-to-beat and every fifteen minutes blood pressure variability induced by noradrenaline infusion in rats | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
キーワード | Blood pressure variability | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
キーワード | Noradrenaline | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
キーワード | Azelnidipine | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
キーワード | Hydralazine | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
キーワード | Baroreceptor reflex sensitivity | |||||
資源タイプ | ||||||
資源タイプ | journal article | |||||
著者 |
姜, 丹鳳
× 姜, 丹鳳× Matsuzaki, Minami× 井田, 隆徳× 北村, 和雄× 加藤, 丈司 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Increased blood pressure variability (BPV) was shown to be associated with cardiovascular morbidities and/or mortalities. There are various types of BPV depending on time intervals of BP measurements, ranging from beat-to-beat to visit-to-visit or year-to-year. We previously found that continuous infusion of noradrenaline (NA) for 14 days increased short-term BPV every 15 min in rats. The aims of this study were to examine (1) whether NA infusion increases very short-term beat-to-beat BPV, (2) the effects of azelnidipine and hydralazine on NA-induced BPV, and (3) whether baroreceptor reflex sensitivity (BRS) is affected by NA or NA plus those vasodilators. Nine-week-old Wistar rats infused subcutaneously with 30 μg/h NA were orally treated with or without 9.7 mg/day azelnidipine or 5.9 mg/day hydralazine over 14 days. BP levels were continuously monitored via abdominal aortic catheter with a telemetry system in an unrestrained condition. Standard deviations (SDs) were used to evaluate beat-to-beat BPV and BPV every 15 min which was obtained by averaging BP levels for 10-s segment at each time point. BRS was determined by a sequence analysis. Continuous NA infusion over 14 days increased average BP, beat-to-beat BPV, and BPV every 15 min, lowering BRS. Comparing the two vasodilators, hydralazine reduced BP elevation by NA; meanwhile, azelnidipine alleviated BPV augmentation, preserving BRS, despite a smaller BP reduction. Thus, NA infusion increased both very short- and short-term BPV concomitantly with impaired BRS, while azelnidipine had an inhibitory effect, possibly independent of BP-lowering, on those types of BPV and impairment of BRS. | |||||
言語 | en | |||||
内容記述 | ||||||
内容記述タイプ | Other | |||||
内容記述 | Citation: Jiang, D., Matsuzaki, M., Ida, T. et al. Effects of vasodilators on beat-to-beat and every fifteen minutes blood pressure variability induced by noradrenaline infusion in rats. Hypertens Res (2024). https://doi.org/10.1038/s41440-024-01595-w |
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言語 | en | |||||
書誌情報 |
en : Hypertension Research 発行日 2024-02-09 |
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出版者 | ||||||
言語 | en | |||||
出版者 | Springer Nature | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0916-9636 | |||||
DOI | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.1038/s41440-024-01595-w | |||||
権利 | ||||||
言語 | en | |||||
権利情報 | © The Author(s) 2024. | |||||
著者版フラグ | ||||||
出版タイプ | VoR |