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Published on: October 12, 2017
Association Between Patatin-Like Phospholipase Do-Main-Containing Protein-3 Variant and Cardiovascular Disease Risk
Chia-Hui Yu1, Gwo-Tarng Sheu2, Chien-Feng Li3
1School of Nursing, College of Medicine Chung Shan Medical University Hospital Taichung Taiwan.
Insights
Single-nucleotide polymorphisms in the PNPLA3 and APOE genes are linked to higher cardiovascular disease (CVD) risk in people with HIV (PLWH) on antiretroviral therapy (ART). Genetic screening may personalize treatment and improve long-term CVD outcomes for PLWH.
Area of Science:
- Genetics
- Cardiovascular Medicine
- Infectious Diseases
Background:
- People living with HIV (PLWH) on antiretroviral therapy (ART) have an elevated risk of cardiovascular disease (CVD).
- Genetic factors may influence CVD risk in this population.
- Understanding these genetic associations is crucial for risk stratification and management.
Purpose of the Study:
- To investigate the association between specific single-nucleotide polymorphisms (SNPs) in lipoprotein-related genes and CVD risk.
- To evaluate the impact of these genetic variations on CVD risk scores in PLWH undergoing ART.
Main Methods:
- Genotyping of four SNPs (ABCB1 rs1045642, APOE rs429358 and rs7412, PNPLA3 rs738409) in 337 PLWH.
- Calculation of CVD risk using the D:A:D model.
- Statistical analysis (ANCOVA) to assess associations between SNPs and CVD risk scores, adjusting for covariates.
Main Results:
- PNPLA3 (rs738409) was significantly associated with higher 10-year CVD risk scores (p=0.03).
- APOE (rs7412) T allele showed borderline associations with increased CVD risk (p=0.07-0.09).
- No significant associations were found for ABCB1 or APOE (rs429358).
Conclusions:
- SNPs in PNPLA3 and APOE may contribute to increased CVD risk in PLWH on ART.
- Genetic screening could enable personalized treatment strategies for improved long-term CVD outcomes.
- Further research is warranted to elucidate the mechanisms linking these SNPs to CVD risk.
Background And Aims:
Cardiovascular disease (CVD) risk is elevated among people living with HIV (PLWH), particularly those receiving antiretroviral therapy (ART). This study aimed to examine associations between single-nucleotide polymorphisms (SNPs) in lipoprotein-related genes and CVD risk among PLWH undergoing ART.
Methods:
Blood samples from 337 PLWH at Chung Shan Medical University Hospital were analyzed, including 238 individuals who switched ART and 99 who continued their regimen. Genotyping of four SNPs-namely, ATP binding cassette B1 (ABCB1; rs1045642), apolipoprotein E (APOE; rs429358 and rs7412), and patatin-like phospholipase domain-containing protein 3 (PNPLA3; rs738409) was performed using real-time polymerase chain reaction and sequence-based typing. CVD risk scores were calculated using the D:A:D model, with high risk defined as a 10-year risk > 5%. Associations between SNPs and CVD risk scores were assessed using analysis of covariance, adjusting for demographic and clinical covariates.
Results:
The cohort was predominantly male 95.6% (322/337), with a mean age of 34.6 years. Metabolic abnormalities were common, and 16.0% (54/337) of participants on ART were classified as high-risk for CVD. Among the SNPs analyzed, PNPLA3 (rs738409) was significantly associated with higher D:A:D (R) 10-year CVD risk scores (p = 0.03) and showed marginal associations with 5-year risk scores (p = 0.05). The APOE (rs7412) T allele demonstrated borderline associations with increased CVD risk (p = 0.07-0.09). No significant associations were observed for ABCB1 or APOE (rs429358). PNPLA3 may influence triglyceride hydrolysis via adipose triglyceride lipase, contributing to fatty liver disease and elevating CVD risk.
Conclusion:
SNPs in PNPLA3 and APOE may contribute to increased CVD risk among PLWH receiving ART. Incorporating genetic screening into clinical care could support personalized treatment strategies and improve long-term CVD outcomes.
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