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Published on: February 14, 2021
Genetic influence on baroreflex sensitivity in normotensive young men
Yang Xing-Sheng1, Li Yong-Zhi, Liu Jie-Xin
1First Ward of Beijing Anzhen Hospital Affiliated by Capital Medical University, Beijing, China.
American Journal of Hypertension
|March 20, 2010
Summary
Genetic factors influence baroreflex sensitivity (BRS), crucial for blood pressure regulation. Three gene polymorphisms in eNOS, CYP11B2, and B2R explain 16% of BRS variation in young men.
Area of Science:
- Cardiovascular Genetics
- Hypertension Pathogenesis
- Baroreflex Regulation
Background:
- Baroreflex dysfunction is implicated in essential hypertension.
- Genetic factors contribute significantly to baroreflex sensitivity (BRS) variation.
- Few specific genetic polymorphisms influencing BRS have been identified.
Purpose of the Study:
- To investigate the association between genetic polymorphisms and BRS.
- To identify specific gene variants contributing to BRS variation in normotensive young men.
Main Methods:
- Studied 182 normotensive young men.
- Genotyped nine polymorphisms in six cardiovascular regulatory genes.
- Calculated BRS using spontaneous blood pressure and heart interval fluctuations.
Main Results:
- BRS negatively correlated with BMI, SBP, and hypertension family history.
- Significant associations found between BRS and polymorphisms in eNOS (T-786C), CYP11B2 (C-344T), and B2R (T-58C) genes.
- These three polymorphisms explained 16% of the BRS variation.
Conclusions:
- Identified three polymorphisms in eNOS, CYP11B2, and B2R associated with BRS variation.
- These genetic variants contribute to the regulation of blood pressure via baroreflex function.
- Findings advance understanding of the genetic underpinnings of essential hypertension.
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