[Interrelationship between structural variants of the apolipoprotein B and ischemic heart disease and plasma lipid...

Area of Science:

• Genetics
• Cardiovascular Medicine
• Molecular Biology

Background:

• Coronary heart disease (CHD) is a leading cause of mortality worldwide.
• The apolipoprotein B (APOB) gene plays a crucial role in lipid metabolism and atherosclerosis.
• Genetic variations within the APOB gene may influence an individual's susceptibility to CHD.

Purpose of the Study:

• To investigate the association between Xba I and EcoR I polymorphisms of the APOB gene and coronary heart disease (CHD).
• To determine the frequency of specific APOB alleles and haplotypes in patients with documented CHD compared to the general population.
• To explore the relationship between APOB gene variants and serum triglyceride levels.

Main Methods:

• Polymerase chain reaction (PCR) was employed to analyze Xba I and EcoR I polymorphisms in the APOB gene.
• Allele and haplotype frequencies were calculated and compared between patient and control groups.
• Serum triglyceride levels were measured and correlated with specific APOB genotypes.

Main Results:

• A significant increase in the frequency of the X+ allele and the H+E+ haplotype was observed in patients with coronary heart disease (CHD) compared to the general population.
• The E- allele of the APOB gene was found to be associated with elevated serum triglyceride levels.
• These findings suggest a correlation between structural variants of the APOB gene and the development of CHD.

Conclusions:

• Structural variants of the apolipoprotein B (APOB) gene contribute to the determination of coronary heart disease (CHD).
• The APOB gene polymorphisms, specifically Xba I and EcoR I, may serve as genetic markers for CHD risk.
• Further research is warranted to elucidate the precise mechanisms by which APOB gene variants influence CHD pathogenesis and lipid profiles.