Anterior cingulate cortex contributes to alcohol withdrawal- induced and socially transferred hyperalgesia

Monique L. Smith, Andre T. Walcott, Mary Heinricher, Andrey Ryabinin

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Pain is often described as a “biopsychosocial” process, yet social influences on pain and underlying neural mechanisms are only now receiving significant experimental attention. Expression of pain by one individual can be communicated to nearby individuals by auditory, visual, and olfactory cues. Conversely, the perception of another’s pain can lead to physiological and behavioral changes in the observer, which can include induction of hyperalgesia in “bystanders” exposed to “primary” conspecifics in which hyperalgesia has been induced directly. The current studies were designed to investigate the neural mechanisms responsible for the social transfer of hyperalgesia in bystander mice housed and tested with primary mice in which hyperalgesia was induced using withdrawal (WD) from voluntary alcohol consumption. Male C57BL/6J mice undergoing WD from a two-bottle choice voluntary alcohol-drinking procedure served as the primary mice. Mice housed in the same room served as bystanders. Naïve, water-drinking controls were housed in a separate room. Immunohistochemical mapping identified significantly enhanced Fos immunoreactivity (Fos-ir) in the anterior cingulate cortex (ACC) and insula (INS) of bystander mice compared to naïve controls, and in the dorsal medial hypothalamus (DMH) of primary mice. Chemogenetic inactivation of the ACC but not primary somatosensory cortex reversed the expression of hyperalgesia in both primary and bystander mice. These studies point to an overlapping neural substrate for expression of socially transferred hyperalgesia and that expressed during alcohol WD.

Original languageEnglish (US)
Article numbere0087
JournaleNeuro
Volume4
Issue number4
DOIs
StatePublished - Jul 24 2017

Fingerprint

Gyrus Cinguli
Hyperalgesia
Alcohols
Pain
Alcohol Drinking
Middle Hypothalamus
Pain Perception
Somatosensory Cortex
Inbred C57BL Mouse
Drinking Water
Cues

Keywords

  • Alcohol
  • Anterior cingulate
  • Empathy
  • Pain
  • Social
  • Withdrawal

ASJC Scopus subject areas

  • Medicine(all)

Cite this

Anterior cingulate cortex contributes to alcohol withdrawal- induced and socially transferred hyperalgesia. / Smith, Monique L.; Walcott, Andre T.; Heinricher, Mary; Ryabinin, Andrey.

In: eNeuro, Vol. 4, No. 4, e0087, 24.07.2017.

Research output: Contribution to journalArticle

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