Hypertension:超重/肥胖的个体血压升高的因素存在性别差异

2019-07-22 MedSci MedSci原创

高血压(BP)是心血管疾病最强的可调节的危险因素。超重/肥胖是高血压的主要危险因素。超重/肥胖患者血压升高的机制途径存在多种性别差异。它们可能导致一种性别特异性的BP血流动力学模式——男性和女性在心脏博出量、总外周阻力(TPR)和心率对较高血压的相对贡献方面可能有所不同。Catriona Syme等人在以人群为基础的36-65岁中年人队列中对上述可能性进行验证。本研究队列共有618个样本,包括28

高血压(BP)是心血管疾病最强的可调节的危险因素。超重/肥胖是高血压的主要危险因素。超重/肥胖患者血压升高的机制途径存在多种性别差异。它们可能导致一种性别特异性的BP血流动力学模式——男性和女性在心脏博出量、总外周阻力(TPR)和心率对较高血压的相对贡献方面可能有所不同。

Catriona Syme等人在以人群为基础的36-65岁中年人队列中对上述可能性进行验证。

本研究队列共有618个样本,包括289位男性和329位女性;男性和女性组中分别有19%和66%的个体为超重。总体上,在52min的实验过程中,研究人员测量了受试者的血压、中风量、TPR和心率,包括姿势和精神压力的变化。同时还评估了每分钟的心脏博出量、TPR和心率对血压的相对影响。

结果显示,超重/肥胖个体之间的BP血流动力学具有显著的性别差异:男性血压升高的主要决定因素是TPR(49%,女性仅为35%,P=0.008),而女性血压升高的主要决定因素是心脏博出量(51%,男性仅为35%,P=0.006)。上述性别差异在站立或休息时最为明显。在正常体重的个体中未发现这种差异,而在正常体重的个体中,无论男女,决定血压升高的主要因素均是TPR。

综上所述,本研究表明,中年人的BP血流动力学存在明显的性别差异,导致超重/肥胖的男性和女性血压升高的主要因素不同,但对于正常体重的个体,则不存在类似的性别差异。本研究或有助于开展高血压精准治疗。

原始出处:

Catriona Syme , et al.Sex Differences in Blood Pressure Hemodynamics in Middle-Aged Adults With Overweight and Obesity. https://doi.org/10.1161/HYPERTENSIONAHA.119.13058Hypertension. 2019;74:407–412

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    2020-06-28 feather89
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    2019-10-12 苏小雨

    NAFLD患者冠心病的性别差异

    0

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