rs1800775
badMag 4.5This is a upstream gene variant variant in the CETP gene.
Key Literature Trait Associations
HDL Cholesterol Levels
The rs1800775 variant is a promoter-region SNP in CETP (cholesteryl ester transfer protein) approximately 629 bp upstream of the transcription start site. The A allele reduces CETP expression, leading to higher HDL ('good') cholesterol levels. Higher HDL driven by reduced CETP activity was associated with exceptional longevity in centenarian studies, particularly among Ashkenazi Jewish centenarians. However, Mendelian randomization studies show the cardiovascular disease benefit is more modest than HDL levels alone would suggest.
Metabolic syndrome
A genome-wide association study in 10,093 Indian individuals identified rs1800775 as one of two primary CETP variants achieving genome-wide significance for metabolic syndrome in the replication phase. This association is biologically plausible given the well-established role of low HDL cholesterol as a core component of metabolic syndrome diagnosis. The finding has not been independently replicated in large non-Indian cohorts, so evidence remains at medium confidence.
Myocardial infarction
A 2014 meta-analysis of 9 case-control studies (8,623 MI cases, 8,564 controls) found that the CETP rs1800775 C>A polymorphism may modestly increase MI risk, particularly in Caucasians. However, a larger 2023 meta-analysis of 70 studies (30,619 CAD cases, 31,836 controls) found no significant association between rs1800775 and coronary artery disease under any genetic model (allele, dominant, or recessive). The balance of evidence does not support an independent MI/CAD effect beyond HDL-C mediation.
▶GWAS Catalog Trait Associations (6)
Genome-wide significant associations (p < 5×10⁻⁸) from the NHGRI-EBI GWAS Catalog.
GWAS Catalog Trait Associations (6)
Genome-wide significant associations (p < 5×10⁻⁸) from the NHGRI-EBI GWAS Catalog.
▶Research that mentions this SNP (1)
▶Association of Cholesteryl Ester Transfer Protein Genotypes With CETP Mass and Activity, Lipid Levels, and Coronary RiskMeta-analysisN=195,833Thompson A. et al.(2008)· JAMA
Systematic review of 92 lipid studies (113,833 participants) and 46 coronary disease studies (82,534 participants) examining CETP polymorphisms. TaqIB rs708272 A allele associated with 9.7% decreased CETP mass, 8.6% decreased CETP activity, 4.5% increased HDL-C (95% CI: 3.8%-5.2%), and weakly inverse association with coronary disease (OR 0.95, 95% CI: 0.92-0.99).
Gene information from NCBI Gene. Variant classifications from ClinVar.
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