Anterior cingulate cortex in individuals with depressive symptoms: A structural MRI study

Hicham M. Ibrahim, Alexandra Kulikova, Huy Ly, A. John Rush, E. Sherwood Brown

Research output: Contribution to journalArticlepeer-review

Abstract

Several magnetic resonance imaging (MRI) studies have reported reduction in anterior cingulate cortex (ACC) volume in individuals with major depressive disorder (MDD). However, some MRI studies did not find significant ACC volumetric changes in MDD, and sample sizes were generally small. This cross-sectional structural MRI study examined the relationship between current depressive symptoms and ACC volume in a large community sample of 1803 adults. A series of multiple linear regression analyses were conducted to predict right and left ACC volumes using Quick Inventory of Depressive Symptomatology Self-Report (QIDS-SR) scores, intracranial volume, age, sex, race/ethnicity, alcohol use, tobacco use, and psychotropic medications as predictor variables. Right ACC volume was significantly negatively associated with QIDS-SR scores, while no significant association was found between left ACC volume and QIDS-SR scores. In addition, there was a significant negative association between QIDS-SR scores and right but not left ACC volumes in males, and no significant association between QIDS-SR scores and right or left ACC volumes in females. These findings suggest that right ACC volume is reduced in people with greater self-reported depressive symptom severity, and that this association is only significant in men.

Original languageEnglish (US)
Article number111420
JournalPsychiatry Research - Neuroimaging
Volume319
DOIs
StatePublished - Jan 2022

Keywords

  • Assessment/diagnosis
  • Brain imaging/neuroimaging
  • Depression
  • Sex differences

ASJC Scopus subject areas

  • Neuroscience (miscellaneous)
  • Radiology Nuclear Medicine and imaging
  • Psychiatry and Mental health

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