Association of RBM5 rs2013208 SNP with serum lipid levels in two Chinese ethnic groups.
2017
: The RNA binding motif protein 5 gene (RBM5) rs2013208 single nucleotide polymorphism (SNP) has been associated with high-density lipoprotein cholesterol (HDL-C) levels in a previous genome-wide association study, but little is known about such association of the RBM5 rs2013208 SNP and serum lipid profiles in the Chinese populations. The present study was to detect the association of the RBM5 rs2013208 SNP and several environmental factors with serum lipid levels in the Jing and Han populations. Genotyping of the RBM5 rs2013208 SNP in 635 subjects of Jing and 648 participants of Han peoples was performed by polymerase chain reaction and restriction fragment length polymorphism, and then confirmed by direct sequencing. There were no significant differences in the genotypic and allelic frequencies of the RBM5 rs2013208 SNP between the two ethnic groups or between males and females. The RBM5 rs2013208G allele carriers had lower serum HDL-C levels in both Jing and Han than the G allele non-carriers. The G allele carriers in Jing had higher serum total cholesterol (TC) levels and higher apolipoprotein (Apo) A1/ApoB ratio than the G allele non-carriers (P < 0.05). Subgroup analysis according to sex showed that the G allele carriers had lower serum HDL-C levels in both Jing and Han females but not in males (P < 0.05). The G allele carriers had higher TC levels in Jing females but not in Jing males, and lower ApoA1/ApoB ratio in Jing males but not in Jing females. Serum lipid parameters were also correlated with several environmental factors in the Jing and Han populations, or in males and females in both ethnic groups. The association of the RBM5 rs2013208 SNP and serum lipid levels is different between the Jing and Han populations. These associations might have an ethnic- and/or sex-specificity.
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