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Statin-Associated Hepatotoxicity Linked to CASP8 Polymorphisms: Mechanistic Insights from Proteomic Analysis
Da Hoon Lee1, Yoon-A Park1, Seo-A Choi1
1College of Pharmacy and Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seoul, Korea.
Certain caspase-8 (CASP8) gene variations increase the risk of liver damage in individuals taking statins. This finding may help predict and prevent statin-associated hepatotoxicity.
Area of Science:
- Pharmacogenomics
- Hepatology
- Cardiovascular disease research
Background:
- Statins are primary treatments for cardiovascular diseases.
- Statin-associated hepatotoxicity is a significant clinical concern.
- Apoptotic caspases (CASP8, CASP3) play roles in liver injury.
Purpose of the Study:
- To investigate the association between CASP8 and CASP3 gene polymorphisms and hepatotoxicity risk in statin users.
- To evaluate the functional impact of these genetic variants on protein expression.
Main Methods:
- Retrospective analysis of 851 South Korean statin users.
- Genotyping of nine single nucleotide polymorphisms (SNPs) using TaqMan assay.
- Multivariable logistic regression and UK Biobank data analysis for protein expression.
Main Results:
- Three CASP8 polymorphisms (rs1045487, rs3769825, rs6745051) were independently linked to increased hepatotoxicity risk.
- Genetic data incorporation improved predictive model performance (AUC 0.720 vs. 0.622).
- Risk-associated CASP8 variants showed trends toward elevated CASP8 protein levels.
Conclusions:
- CASP8 gene polymorphisms are significant risk factors for statin-associated hepatotoxicity.
- Genetic profiling may enhance prediction of liver injury in statin users.
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