Sex differences in the endothelial function of untreated hypertension.

Sex differences in the endothelial function of untreated hypertension.
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DOI:
10.1111/j.1751-7176.2012.00593.x
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发表时间:
2012-04
期刊:
Journal of clinical hypertension (Greenwich, Conn.)
影响因子:
--
通讯作者:
Sherwood A
Sherwood A
中科院分区:
其他
文献类型:
--
作者:
Routledge FS;Hinderliter AL;Blumenthal JA;Sherwood A

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血管内皮功能障碍与不良心血管事件风险增加相关。然而,对未经治疗的高血压个体的内皮功能的性别差异知之甚少。本研究的目的是评估未经治疗的高血压女性和男性的内皮功能。90名年龄为40 - 60岁(平均年龄为46.1±8.2岁)、患有未经治疗的1期高血压(SBP 140-159 mmHg和/或DBP 90-99 mmHg)的受试者(35名女性,55名男性)接受了肱动脉内皮依赖性血流介导的扩张和内皮非依赖性三硝酸甘油酯扩张。女性的血流介导的扩张反应小于男性(校正均值±SEM; 1.8%±0.6 vs. 3.9%±0.4,p= 0.036)。调整基线动脉直径(p= 0.004)、年龄(p= 0.596)、种族(p= 0.496)、对数剪切应力比(p<0.001)、BMI(p= 0.009)、24小时DBP(p= 0.169)、HDL(p= 0.225)、对数肌酐(p= 0.927)和对数体力活动(p= 0.682)。在调整后的模型中,三硝酸甘油扩张作用没有因性别而存在差异。年龄在40 - 60岁之间的未治疗1期高血压的女性与男性相比,表现出更大的内皮功能受损。这些发现提高了女性可能会在未经治疗的1期高血压患者中产生更大的心血管事件风险的可能性,这可能是由于内皮功能较差。
Vascular endothelial dysfunction is associated with increased risk for adverse cardiovascular events. However, less is known about gender differences in the endothelial function of untreated hypertensive individuals. The purpose of this study was to assess endothelial function in women and men with untreated hypertension. Ninety participants (35 women, 55 men), aged 40 to 60 years (mean age, 46.1±8.2 years), with untreated stage 1 hypertension (SBP 140–159 mmHg and/or DBP 90–99 mmHg) underwent brachial artery endothelial-dependent flow-mediated dilation and endothelial-independent glyceryl trinitrate dilation. Women had a smaller flow-mediated dilation response than men (adjusted means±SEM; 1.8%±0.6 vs. 3.9%±0.4, p=.036). adjusting for baseline arterial diameter (p=.004), age (p=.596), ethnicity (p=.496), log shear stress ratio (p<.001), BMI (p=.009), 24-hour DBP (p=.169), HDL (p=.225), log creatinine (p=.927) and log physical activity (p=.682). Glyceryl trinitrate dilation did not differ by gender in adjusted models. Women between the ages of 40 and 60 years with untreated stage 1 hypertension exhibited a greater impairment of endothelial function compared to their male counterparts. These findings raise the possibility that female gender may impart a greater risk of cardiovascular events in patients with untreated stage 1 hypertension potentially due to poorer endothelial function.
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