RESUMO
Objective:To analyze the relationship between microRNA-137 gene polymorphisms and ischemic post-stroke depression (PSD). Methods:January, 2017 to January, 2019, the single nucleotide polymorphism (SNP) of rs1625579 in microRNA-137 was genotyped in 250 ischemic PSD patients and 250 healthy controls with SNaPshot. The expression of microRNA-137 was measured with quantitative real-time polymerase chain reaction in the mononuclear cells, and the association of the SNP rs1625579 with microRNA-137 expression was analyzed. Results:The allele T was more in the patients than in the controls (OR = 2.033, 95%CI 1.255 to 3.294, P = 0.003), as well as the genotype TT (OR = 2.139, 95%CI 1.272~3.595, P = 0.004). The microRNA-137 expression was less in the patients than in the controls (t = 28.23, P < 0.001). For the controls, the microRNA-137 expression was also less in those with genotype of TT than with GT and GG (t = 3.764, P < 0.001). Conclusion:The genotype TT of SNP rs1625579 in microRNA-137 is a risk factor of susceptibility to ischemic PSD, which may associate with the decrease of expression of microRNA-137.