[Association of rs2228314 polymorphism in SREBP2 with serum lipid levels and obesity among children and adolescents].

OBJECTIVE

To study the relationship between rs2228314 polymorphism in sterol regulatory element binding protein 2 gene (SREBP2) and obesity, serum lipid levels in children and adolescents.

METHODS

In our study, 2 030 children and adolescents aged from 7 to 18 years participated. Anthropometric measurements, including height and weight, were performed. Their serum total cholesterol (TC), triglyceride (TG), low-density lipoprotein cholesterol (LDL-C) and high-density lipoprotein cholesterol (HDL-C) were detected. The matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) was used to detect rs2228314 genotypes.

RESULTS

The GC/CC genotypes of rs2228314 polymorphisms had lower HDL-C levels than GG genotype [(0.10 ± 0.35) mmol/L vs. (0.14 ± 0.36) mmol/L, P=0.020]. The rs2228314 polymorphism was associated with the abnormal HDL-C level under the dominant model after adjustment for study samples, sex and age (OR=1.400, 95% CI: 1.027-1.907, P=0.033). The rs2228314 polymorphism was not associated with obesity under the dominant model after adjustment for study samples, sex, age and HDL-C level (OR=1.178,95% CI: 0.971-1.430, P=0.096).

CONCLUSION

The GC/CC genotype carriers of SREBP2 rs2228314 polymorphism have higher risk of abnormal HDL-C level than the individuals with GG genotype among children and adolescents.