TABLE 3.
Association of CpG methylation sites with fasting lipoprotein parameters in the discovery and replication samples and for the whole GOLDN sample
| Markera | Position | Discovery Subsample (N = 663) | Replication Subsample (N = 331) | Full Sample (N = 994) | ||||
| β (SE) | P | β (SE) | P | β (SE)b | P | |||
| LDL parameters | ||||||||
| Concentration of small particles | cg00574958 | 68607622 | −1.3 × 10−5 (1.8 × 10−6) | 7.1 × 10−13 | −1.1 × 10−5 (2.6 × 10−6) | 1.4 × 10−5 | −1.92 × 10−4 (2.29 × 10−5) | 1.37 × 10−16 |
| Total particles | cg00574958 | 68607622 | −1.3 × 10−5 (2.2 × 10−6) | 2.3 × 10−9 | −1.2 (7.4 × 10−7) | 0.0001 | −1.21 × 10−5 (1.72 × 10−6) | 3.34 × 10−12 |
| Average diameter | cg00574958 | 68607622 | 0.01 (0.001) | 4.9 × 10−13 | 0.01 (0.002) | 6.5 × 10−6 | 0.0078 (9.04 × 10−4) | 2.8 × 10−17 |
| VLDL parameters | ||||||||
| Concentration of large particles | cg00574958 | 68607622 | −0.001 (1.9 × 10−4) | 1.5 × 10−12 | −0.001 (2.0 × 10−4) | 1.6 × 10−5 | −1.42 × 10−4 (1.61 × 10−5) | 5.19 × 10−18 |
| cg17058475 | 68607737 | −0.001 (2.6 × 10−4) | 1.8 × 10−7 | −0.001 (2.6 × 10−4) | 0.0001 | −1.57 × 10−4 (2.2 × 10−5) | 1.82 × 10−12 | |
| Concentration of medium particles | cg00574958 | 68607622 | −2.1 × 10−4 (2.7 × 10−5) | 8.0 × 10−15 | −2.3 × 10−4 (5.1 × 10−5) | 0.0002 | −1.24 × 10−4 (1.37 × 10−5) | 6.74 × 10−19 |
| cg17058475 | 68607737 | −3.7 × 10−4 (3.7 × 10−5) | 2.6 × 10−11 | −1.5 (3.9 × 10−5) | 1.4 × 10−5 | 1.55 × 10−4 (1.86 × 10−5) | 2.8 × 10−16 | |
| Total particles | cg00574958 | 68607622 | −1.6 × 10−4 (2.0 × 10−5) | 1.11 × 10−14 | −1.6 × 10−4 (3.7 × 10−5) | 6.7 × 10−6 | −1.42 × 10−4 (1.52 × 10−5) | 6.27 × 10−20 |
| cg17058475 | 68607737 | −1.7 × 10−4 (2.8 × 10−5) | 1.293 × 10−9 | −1.1 × 10−4 (2.8 × 10−5) | 4.2 × 10−5 | −1.73 × 10−4 (2.08 × 10−5) | 3.22 × 10−16 | |
For sites that reached genome-wide levels of significance (P < 1.1 × 10−7) in the discovery cohort and replicated at a Bonferroni corrected α of 0.05 (P < 0.004) in the replication cohort.
All loci are in CPT1A, which is located in Chromosome 11.
Mean (±SD) for methylation at locus cg00574958 = 0.10 (0.03) and at locus cg17058475 = 0.14 (0.05).