Abstract:
:Human brain imaging studies have revealed the anterior cingulate cortex (ACC) as a key brain region for mediating visceral-pain-cognitive interactions. Recently, we characterized impairments of long-term potentiation and spike-field coherence in the basolateral amygdala (BLA)-ACC network in association with a decision-making deficit in rats with visceral hypersensitivity (VH). Now, by combining integrative neurobiological approaches, we show that ACC-reactive astrogliosis and activity-dependent impairment of lactate release occur in VH rats. Exogenous lactate supply rescues chronic-visceral-pain-caused impairments of ACC phase locking and decision making, which can be mimicked by optogenetic activation of ACC astrocytes. Large-scale electrophysiological recordings in free-moving animals during a decision-making task indicate that optogenetic astrocytic activation improves decision-making performance and engages ACC phase locking and BLA-to-ACC information flow. Collectively, these observations support the idea of an "astrocyte-neuron l-lactate shuttle" and suggest that targeting astrocytes may help with cognitive dysfunctions under chronic visceral pain.
journal_name
Cell Repjournal_title
Cell reportsauthors
Wang J,Tu J,Cao B,Mu L,Yang X,Cong M,Ramkrishnan AS,Chan RHM,Wang L,Li Ydoi
10.1016/j.celrep.2017.11.012subject
Has Abstractpub_date
2017-11-28 00:00:00pages
2407-2418issue
9issn
2211-1247pii
S2211-1247(17)31632-7journal_volume
21pub_type
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