[Structural and Functional Remodeling of Vascular Wall in Persons With Family History of Hypertension]

Area of Science:

• Cardiovascular Medicine
• Vascular Biology
• Hypertension Research

Background:

• Family history of hypertension is a significant risk factor for developing cardiovascular disease.
• Early detection of vascular changes in individuals with a family history of hypertension is crucial for preventive strategies.

Purpose of the Study:

• To investigate structural and functional vascular wall remodeling in young adults with a family history of hypertension.
• To identify early markers of endothelial dysfunction and arterial stiffness in this at-risk population.

Main Methods:

• Ultrasound assessment of brachial artery (BA) and common carotid artery (CCA) in 95 young adults (17-28 years) with positive hypertensive heredity.
• Measurement of endothelial-dependent flow-mediated dilatation (EDFMD) of BA.
• Calculation of vascular wall distensibility and elasticity coefficients, and carotid intima-media thickness (CIMT).

Main Results:

• Lower EDFMD and increased CIMT observed in individuals with hypertension and high-normal blood pressure compared to controls (p<0.001).
• Reduced arterial wall distensibility found in those with a family history of hypertension (p=0.0001 - p <0.005).
• Lowest CCA elasticity and highest pulse wave velocity noted in the hypertension group.

Conclusions:

• Individuals with a family history of hypertension exhibit early endothelial dysfunction, characterized by reduced EDFMD and increased CIMT.
• These individuals also show impaired arterial elastic properties and increased vascular stiffness, even at pre-hypertensive stages.
• Findings suggest that family history of hypertension is associated with subclinical vascular abnormalities detectable in young adulthood.