Genetic Biomarkers in Association with Depressive Disorder in UAE Residents: A Pilot Case Study.

OBJECTIVES

We sought to explore the expression of genes associated with depressive disorder in patients with depression compared to control patients. A large body of research in the area of genetics has shown familial aggregation for depressive disorders. The purpose of this study was to identify genetic risk factors in developing depression, particularly among the population residing in the UAE.

METHODS

We investigated five associated genes (, , , , ) previously linked to depression and anxiety in other populations. The study was carried out in Al Ain, although participants were from different nationalities. Blood samples were collected over a period of seven months, and lab work was carried out over a period of two months from September 1, 2018 to May 30, 2019. We screened the prevalence of the , , , , and in 29 patients with depressive disorder and 30 controls using the quantitative real-time polymerase chain reaction method.

RESULTS

The expression of the gene, studied for the first time in the UAE population. The independent -test was used to check the significance of difference between the expression levels of target genes where the control was set at a reference level of 1.0. gene is lower among the depressed group which showed mean difference: 0.4 and -value: 0.02, indicating a strong association with depression. No significant difference was found in the genes' expression of with -value 0.150, -value 0.070, -value 0.750, and -value 0.100 in two groups in comparison with ( < 0.050).

CONCLUSIONS

These results open several possibilities for further research to study the role of this gene as a protective factor against developing depression.