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[Vascular endothelial function in salt sensitive and non-salt sensitive subjects].
Jian-jun Mu1, Tao Zhang, Yuan Fang
1Department of Cardiology, Xi'an Jiaotong University, Xian 710061, China.
Zhonghua Xin Xue Guan Bing Za Zhi
|March 23, 2011
Summary
Salt-sensitive individuals with normal or mildly elevated blood pressure exhibit impaired vascular endothelial function. This suggests early endothelial dysfunction in salt-sensitive hypertension.
Area of Science:
- Cardiovascular Research
- Hypertension Studies
- Endothelial Function Analysis
Context:
- Salt-sensitivity is linked to severe organ damage and mortality in hypertension.
- Understanding endothelial function differences in salt-sensitive versus non-salt-sensitive individuals is crucial for early hypertension management.
Purpose:
- To compare vascular endothelial function between salt-sensitive (SS) and non-salt-sensitive (NSS) subjects with normal or mildly elevated blood pressure.
- To assess endothelial function using flow-mediated dilation (FMD) and plasma nitric oxide (NOx) levels.
Summary:
- A study of 99 subjects (aged 16-60) with normal or mild hypertension revealed 17.2% were salt-sensitive.
- Salt-sensitive subjects showed significantly lower plasma NOx levels and FMD compared to non-salt-sensitive subjects.
- These findings indicate vascular endothelial dysfunction in salt-sensitive individuals even at normal or early hypertensive stages.
Impact:
- Highlights the presence of endothelial dysfunction in salt-sensitive individuals with normal or early-stage hypertension.
- Suggests potential for early intervention strategies targeting endothelial function in salt-sensitive populations.
- Underscores the importance of assessing salt-sensitivity in hypertension management to predict and mitigate target organ damage.
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