When grief heats up: Pro-inflammatory cytokines predict regional brain activation

Mary-Frances O'Connor, Michael R. Irwin, David K. Wellisch

Research output: Contribution to journalArticle

71 Citations (Scopus)

Abstract

Background: Pro-inflammatory cytokines are associated with sickness behaviors, a set of behaviors including low mood, which are orchestrated by the brain and described as shift in motivational state. The present study investigated the hypothesis that local inflammation is associated with greater subgenual anterior cingulate cortex (sACC) activation in persons undergoing chronic stress. Methods: Women undergoing the emotional stress of bereavement had fMRI scans during a grief elicitation task. Local inflammation was measured by salivary concentrations of two markers of pro-inflammatory cytokine activity (e.g., interleukin-1β and soluble tumor necrosis factor receptor II). Results: Analyses revealed that both inflammatory markers were positively associated with ventral prefrontal activation (e.g., sACC and orbitofrontal cortex) as well as other regions important in the emotional task such as noun retrieval (e.g., temporal cortex), and visual processing (e.g., cuneus and fusiform gyrus). In separate analyses, the ventral prefrontal activations correlated with free recall of grief-related word stimuli, but not neutral word stimuli. Conclusions: This is the first study to demonstrate the relationship between emotional processing, regional brain activation and localized inflammation in a chronically stressed population of adults.

Original languageEnglish (US)
Pages (from-to)891-896
Number of pages6
JournalNeuroImage
Volume47
Issue number3
DOIs
StatePublished - Sep 2009
Externally publishedYes

Fingerprint

Grief
Hot Temperature
Gyrus Cinguli
Temporal Lobe
Cytokines
Inflammation
Brain
Illness Behavior
Occipital Lobe
Bereavement
Tumor Necrosis Factor Receptors
Prefrontal Cortex
Interleukin-1
Psychological Stress
Magnetic Resonance Imaging
Population

Keywords

  • Cytokines
  • Emotion
  • Grief
  • Inflammation
  • Neuroscience
  • Psychoneuroimmunology

ASJC Scopus subject areas

  • Cognitive Neuroscience
  • Neurology

Cite this

When grief heats up : Pro-inflammatory cytokines predict regional brain activation. / O'Connor, Mary-Frances; Irwin, Michael R.; Wellisch, David K.

In: NeuroImage, Vol. 47, No. 3, 09.2009, p. 891-896.

Research output: Contribution to journalArticle

O'Connor, Mary-Frances ; Irwin, Michael R. ; Wellisch, David K. / When grief heats up : Pro-inflammatory cytokines predict regional brain activation. In: NeuroImage. 2009 ; Vol. 47, No. 3. pp. 891-896.
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