The combination of disadvantageous allelic expression of rs6295 and rs6265 may result in a 5-HT<sub>1A</sub> receptor profile comparable to affective disorders as increased 5-HT<sub>1A</sub> receptor binding is a well published phenotype of depression.
The primary goal of this study was to determine the possible association between polymorphisms of genes encoding the serotonin receptors 5HT1A (rs6295), 5HT1B (rs6296), and 5HT2C (rs6318) and the presence of mood disorders in patients with TLE-HS.
Results from this expanded meta-analysis, which included our own new study, suggest that rs6295 (C-1019G) and rs878567 in HTR1A are related to the pathophysiology of MDs, with overlap between MDD and BP.