Phenome-wide association analysis of LDL-cholesterol lowering genetic variants in PCSK9.
BMC Cardiovasc Disord
; 19(1): 240, 2019 10 29.
Article
in En
| MEDLINE
| ID: mdl-31664920
BACKGROUND: We characterised the phenotypic consequence of genetic variation at the PCSK9 locus and compared findings with recent trials of pharmacological inhibitors of PCSK9. METHODS: Published and individual participant level data (300,000+ participants) were combined to construct a weighted PCSK9 gene-centric score (GS). Seventeen randomized placebo controlled PCSK9 inhibitor trials were included, providing data on 79,578 participants. Results were scaled to a one mmol/L lower LDL-C concentration. RESULTS: The PCSK9 GS (comprising 4 SNPs) associations with plasma lipid and apolipoprotein levels were consistent in direction with treatment effects. The GS odds ratio (OR) for myocardial infarction (MI) was 0.53 (95% CI 0.42; 0.68), compared to a PCSK9 inhibitor effect of 0.90 (95% CI 0.86; 0.93). For ischemic stroke ORs were 0.84 (95% CI 0.57; 1.22) for the GS, compared to 0.85 (95% CI 0.78; 0.93) in the drug trials. ORs with type 2 diabetes mellitus (T2DM) were 1.29 (95% CI 1.11; 1.50) for the GS, as compared to 1.00 (95% CI 0.96; 1.04) for incident T2DM in PCSK9 inhibitor trials. No genetic associations were observed for cancer, heart failure, atrial fibrillation, chronic obstructive pulmonary disease, or Alzheimer's disease - outcomes for which large-scale trial data were unavailable. CONCLUSIONS: Genetic variation at the PCSK9 locus recapitulates the effects of therapeutic inhibition of PCSK9 on major blood lipid fractions and MI. While indicating an increased risk of T2DM, no other possible safety concerns were shown; although precision was moderate.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Serine Proteinase Inhibitors
/
Polymorphism, Single Nucleotide
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Dyslipidemias
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Proprotein Convertase 9
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PCSK9 Inhibitors
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Cholesterol, LDL
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Anticholesteremic Agents
Type of study:
Clinical_trials
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Etiology_studies
/
Risk_factors_studies
Limits:
Humans
Language:
En
Journal:
BMC Cardiovasc Disord
Journal subject:
ANGIOLOGIA
/
CARDIOLOGIA
Year:
2019
Type:
Article