Sodium nitrate supplementation improves blood pressure reactivity in patients with peripheral artery disease.

Sodium nitrate supplementation improves blood pressure reactivity in patients with peripheral artery disease.
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补充硝酸钠可改善外周动脉疾病患者的血压反应性。

DOI:
10.1016/j.numecd.2021.12.002
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发表时间:
2022-03
期刊:
Nutrition, metabolism, and cardiovascular diseases : NMCD
影响因子:
--
通讯作者:
Casey DP
Casey DP
中科院分区:
其他
文献类型:
--
作者:
Hughes WE;Treichler DP;Ueda K;Bock JM;Casey DP

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外周动脉疾病 (PAD) 的特征是血压 (BP) 升高、一氧化氮可用性 (NO) 低以及对交感兴奋性应激源的升压反应过度。无机硝酸盐可降低健康和慢性病人群的外周血压。本研究的目的是探讨补充八周的硝酸钠 (NaNO3) 对 PAD 患者血压指数的影响。 21 名 PAD 患者被招募参加这项研究,接受为期 8 周的 NaNO3(n=13;73±9 岁)或安慰剂(n=8;69±10 岁)补充剂。在补充期之前和之后检查血压对冷加压试验(CPT)的反应。 CPT 第一分钟 (26±10 vs. 19±11mmHg) 和第二分钟 (32±10 vs. 26±12mmHg) 的收缩压反应(相对于休息的变化)在 NaNO3 治疗后有所降低(两者 P<0.05),但在安慰剂治疗后则没有降低(第一分钟:22±10 vs. 24±10mmHg,P=0.30;第二分钟:26±10 mmHg vs. 27±10mmHg,P=0.72)补充。我们的数据表明,补充八周的 NaNO3 可降低血压对交感神经兴奋性刺激的反应性。 NCT01983826
Peripheral artery disease (PAD) is characterized by elevated blood pressure (BP), low nitric oxide availability (NO), and exaggerated pressor responses to sympatho-excitatory stressors. Inorganic nitrate reduces peripheral BP in healthy and chronically diseased populations. The objective of this study was to investigate the effects of eight-weeks of sodium nitrate (NaNO3) supplementation on indices of BP in PAD patients. 21 patients with PAD were recruited to participate in this study, undergoing 8-weeks of NaNO3 (n=13; 73±9 years) or placebo (n=8; 69±10 years) supplementation. BP responsiveness to a cold pressor test (CPT) were examined prior to and following the supplementation period. The systolic BP response (change from rest) during the first (26±10 vs. 19±11mmHg) and second minutes (32±10 vs. 26±12mmHg) of CPT were reduced following NaNO3 (P<0.05 for both) but not after placebo (first minute: 22±10 vs. 24±10mmHg, P=0.30; second minute 26±10 vs 27±10mmHg, P=0.72) supplementation. Our data suggest that eight-weeks of NaNO3 supplementation reduces BP responsiveness to sympatho-excitatory stimuli. NCT01983826
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