We presented previous GWAS findings in Table 1. Some previous GWASs combined heterogeneous samples and then controlled for population stratification and admixture effects. These combined effects in pooled samples are also presented in the “meta/combined” column (not underlined) in Table 1. Furthermore, we extended and validated these findings using other public data available to us, including meta-analysis, cis-acting expression of quantitative locus (Cis-eQTL) analysis, rat brain transcriptome analysis, bioinformatics analysis and SNP-disease association analysis.
