Document Type

Article

Publication Date

4-2013

Abstract

Context: The FKBP5 gene product regulates glucocorticoid receptor (GR) sensitivity and hypothalamicpituitary‐adrenal axis functioning, and has been associated with a number of stress‐related psychiatric disorders. The study of intermediate phenotypes, such as emotion‐processing biases and their neural substrates, provides a way to clarify the mechanisms by which FKBP5 dysregulation mediates psychopathology risk.

Objective: To examine whether allelic variations for a putatively functional SNP associated with FKBP5 gene regulation (rs1360780) would relate differentially to attentional bias for threat; this was measured through behavioral response on a dot probe task and hippocampal activation during task performance. Morphological substrates of differential hippocampal response were also measured.

Design: Cross-sectional study examining associations between genotype, behavioral response and neural response (using fMRI) on the dot probe; Voxel-based morphometry (VBM), global and local shape analyses were used to measure structural differences in hippocampi between genotype groups.

Comments

Author Accepted Manuscript version of

N. Fani, D. Gutman, E. Tone, et al. (April 2013). FKBP5 and Attention Bias for Threat Associations With Hippocampal Function and Shape. JAMA Psychiatry. 2013;70(4):392-400.

doi:10.1001/2013.jamapsychiatry.210.