[Genetics of blood pressure]

Area of Science:

• Genetics
• Physiology
• Epidemiology

Context:

• Blood pressure regulation involves complex genetic and environmental factors.
• Heritability estimates for blood pressure range significantly, from 30% to 60%.
• Monogenic disorders of blood pressure, though rare, offer insights into underlying biological pathways.

Purpose:

• To summarize current understanding of the genetic basis of blood pressure.
• To highlight advances in identifying genetic associations with blood pressure.
• To contextualize the contribution of common genetic variants to blood pressure variation.

Summary:

• The majority of hypertension cases are classified as "essential hypertension," resulting from a combination of multiple genetic and environmental influences.
• Recent large-scale genome-wide association studies have identified numerous common single nucleotide polymorphisms associated with blood pressure.
• Despite these advances, these common variants collectively explain a small proportion (approximately 2%) of blood pressure variation.

Impact:

• Advances understanding of the genetic architecture of blood pressure.
• Provides a foundation for future research into blood pressure regulation.
• Informs potential strategies for managing and treating hypertension.