Association study of nicotinic-receptor variants and major depressive disorder.

Abstract excerpt

BACKGROUND: Depressive patients are more likely to smoke than the general population and nicotine was found to reduce the incidence and severity of depressive symptoms in many studies. These findings suggest that nicotinic acetylcholine receptors (nAChRs) may be implicated in major depressive disorder. We tested the hypothesis that the allelic variant, 2 bp deletion, of the partially duplicated alpha7 nAChR gene...

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