Journal of molecular medicine (Berlin, Germany)·2006
Apolipoprotein E (apo E) genotype influences probucol
Area of Science:
Pharmacogenetics
Cardiovascular Medicine
Biochemistry
Background:
Probucol is an effective cholesterol-lowering medication.
Individual responses to probucol vary significantly.
Apolipoprotein E (apo E) polymorphism is a potential factor influencing this variability.
Purpose of the Study:
To investigate the role of apolipoprotein E (apo E) polymorphism in determining variable cholesterol reduction in patients treated with probucol.
To assess if apo E genotype impacts probucol's efficacy in hypercholesterolemia management.
Main Methods:
Retrospective analysis of 89 hypercholesterolemic Type II patients treated with probucol (1 g/d).
Patients were phenotyped for apolipoprotein E (apo E).
Stratification by familial hypercholesterolemia (FH) status (FH vs. non-FH) and subtype (IIa vs. IIb).
Main Results:
Significant differences in cholesterol reduction (absolute and percent change) were observed between individuals with the apo E3/3 phenotype and those carrying the epsilon 4 allele.
Familial hypercholesterolemia (FH) patients with the epsilon 4 allele showed the greatest reduction in cholesterol levels.
No significant heterogeneity in response related to age or sex was found across diagnostic classes.
Conclusions:
Apolipoprotein E (apo E) genotype is a significant determinant of probucol's cholesterol-lowering efficacy.
The epsilon 4 allele of apo E is associated with enhanced cholesterol reduction in response to probucol, particularly in FH patients.
These findings highlight the potential for personalized medicine approaches in managing hypercholesterolemia with probucol based on apo E genotype.