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Data on gray matter alterations in anxious depression.

Wei Peng1,2, Zhiyun Jia1,3, Xiaoqi Huang1

  • 1Huaxi MR Research Center (HMRRC), Department of Radiology, West China Hospital of Sichuan University, Chengdu, China.

Data in Brief
|August 28, 2019
PubMed
Summary

Anxious depression is linked to structural brain changes, particularly in the left postcentral gyrus (PCG). Specific anxiety symptoms like psychic anxiety and hypochondriasis correlate with gray matter volume in the PCG.

Keywords:
Anxious depressionGray matterNon-anxious depression

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Area of Science:

  • Neuroscience
  • Psychiatry
  • Radiology

Background:

  • Anxious depression involves emotional dysregulation and sensory processing alterations.
  • Previous research suggests brain structural abnormalities in patients with anxious depression.

Purpose of the Study:

  • To provide supplementary data on brain structural abnormalities in anxious depression.
  • To correlate clinical measures with regional gray matter volumes.
  • To identify specific anxiety symptoms associated with structural alterations.

Main Methods:

  • Correlation analyses between clinical data (HAMD, HAMA, illness duration) and regional gray matter volumes.
  • Detailed analysis of anxiety factor items and gray matter volumes.
  • Comparison of gray matter volumes between anxious and non-anxious depression groups using matched samples.

Main Results:

  • Positive association between left postcentral gyrus (PCG) gray matter volume and HAMD total/anxiety scores in the anxious depression group.
  • Items 10 (psychic anxiety) and 15 (hypochondriasis) showed significant positive correlation with left PCG gray matter volume.
  • Anxious depression group exhibited larger gray matter volumes in the left PCG compared to the non-anxious group.

Conclusions:

  • Gray matter volume in the left PCG is associated with anxious depression severity and specific anxiety symptoms.
  • Structural differences in the left PCG may be a biomarker for anxious depression.
  • Further research is needed to validate these findings and explore their clinical implications.