Frequency of eNOS polymorphisms in the Colombian general population

Area of Science:

• Genetics and Molecular Biology
• Cardiovascular Research
• Population Genetics

Background:

• Endothelial nitric oxide (NO) is a key vasodilator produced by endothelial cells.
• Endothelial nitric oxide synthase (eNOS) gene polymorphisms may influence vascular endothelial response to oxidative stress.
• Understanding eNOS gene variations is crucial for assessing cardiovascular health.

Purpose of the Study:

• To investigate the prevalence of G894T (rs1799983), intron-4 (27-bp TR), and -T786C (rs2070744) polymorphisms in the eNOS gene.
• To analyze the distribution of these eNOS polymorphisms within the Colombian general population.
• To explore potential ethnic differences in eNOS gene variant frequencies.

Main Methods:

• Genotyping of eNOS G894T, intron-4 (27-bp TR), and -T786C polymorphisms.
• Analysis of genotype and allele frequencies across different ethnic groups in Colombia.
• Hardy-Weinberg equilibrium testing for genetic variation analysis.

Main Results:

• Significant differences in genotype and allele frequencies were observed among ethnic groups.
• The T allele of rs1799983 was more prevalent in the white population.
• The 4a allele of 27-bp TR was more frequent in the black population, while the C allele of rs2070744 showed similar frequencies across groups.

Conclusions:

• Substantial ethnic variations exist in the distribution of eNOS polymorphisms in Colombia.
• These findings contribute to understanding inter-ethnic differences in NO bioavailability.
• Results may inform personalized medicine approaches for cardiovascular risk and drug response.