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Abstract
To explore the association between 75 candidate genes previously reported in subjects with anxiety symptoms (AS) and depressive symptoms (DS) in a Mexican cohort. The sample included 2012 individuals from the Mexican Genomic Database for Addiction Research (MxGDAR/Encodat) cohort, 198 showed AS, 266 DS, 66 anxiety and depressive symptoms (ADS), and 1482 healthy controls. The DI-PAD screening questionnaire was used to evaluate lifetime AS and DS. The sample was genotyped with the commercial microarray PsychArray BeadChip. We identified 707 SNPs of 75 genes previously associated with AS and DS. PLINK's logistic regression approach was performed. The analysis showed association between the rs2437092 (p=3.89x10-5) of LAMA and rs11066591 (p=4.06x10-5) of MYO1H with anxiety and depressive symptomatology. Additionally, rs7578002 (p=7.9x10-6) and rs1234428 (p=1.94x10-5) of MBD5 found association with DS. However, after adjustment for age, sex, and the three genetic principal components, only the association of rs7578002 (p=5.85x10-5) and rs1234428 (p=8.15x10-5) of MBD5 with DS remained. Our study replicated the association between MBD5 and DS. The MBD5 protein is involved in gene silencing, suggesting its potential implication in the development of DS in the Mexican population.
Published Version
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