Journal
NEUROPSYCHOPHARMACOLOGY
Volume 36, Issue 9, Pages 1879-1885Publisher
SPRINGERNATURE
DOI: 10.1038/npp.2011.73
Keywords
neuropeptide-S; emotion; amygdala; anxiety; fMRI; imaging genetics
Categories
Funding
- Deutsche Forschungsgemeinschaft (DFG) [SFB-TRR-58]
- Innovative Medizinische Forschung (IMF) [DA120309, DA211012]
- Rolf-Dierichs-Stiftung [ZUW80037]
- Astra-Zeneca
Ask authors/readers for more resources
Recent studies point to a role of neuropeptide-S (NPS) in the etiology of anxiety disorders. In animal models, NPS and its receptor (NPSR) were shown to be highly expressed in the amygdala, a central structure in the fear circuit, also known to be hyper-responsive in anxiety disorders. Recently, a functional polymorphism in the NPSR gene (rs324981 A/T) has been associated with panic disorder and anxiety sensitivity. However, the role of NPSR gene variation in the modulation of fear-related amygdala responsiveness remains to be clarified. In 79 healthy subjects genotyped for NPSR rs324981, amygdala responses were assessed by means of fMRI. The participants were presented with fear-relevant faces in a robust emotion-processing paradigm frequently used to study amygdala responsiveness. We observed a strong association of NPSR T-alleles with right amygdala responsiveness to fear-relevant faces. The association peak was located in the BLA. Furthermore, responsiveness to aversive stimuli within this BLA cluster predicted a participant's self-reported harm avoidance but not depression level. We conclude that NPSR genotype is associated with increased amygdala responsiveness to fear-relevant stimuli. Thereby, NPSR rs324981 apparently causes an indirect effect on anxiety-related traits and potentially contributes to the pathogenesis of anxiety disorders by shaping fear-related limbic activity. Neuropsychopharmacology (2011) 36, 1879-1885; doi:10.1038/npp.2011.73; published online 27 April 2011
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available