Abstract
There is evidence from animal experiments that the μ- and δ-opioid receptors may play a role in anxiety and depression. It might therefore be expected that functional polymorphisms of these genes in humans are associated with anxiety and depression. We investigated a single-nucleotide polymorphism (Asn40Asp) of the μ-opioid receptor gene (OPRM1). This association was investigated in two samples: 1) a cross-sectional survey of 867 community-living adults aged 18-79 years who were assessed for anxiety and depression symptoms and related personality traits; and 2) a longitudinal study of childhood temperament in which 660 children were followed from infancy to the mid-teens and assessed for anxiety-related temperament and behavior problems. The data did not support a role for the Asn40Asp polymorphism in anxiety and depression, despite adequate statistical power to detect small effects.
Original language | English |
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Pages (from-to) | 659-664 |
Number of pages | 6 |
Journal | American Journal of Medical Genetics, Part B: Neuropsychiatric Genetics |
Volume | 114 |
Issue number | 6 |
DOIs | |
Publication status | Published - 8 Aug 2002 |