Journal
CELLS
Volume 12, Issue 10, Pages -Publisher
MDPI
DOI: 10.3390/cells12101423
Keywords
adolescent alcohol use; microglia; astrocytes; cytokines; toll-like receptors; neuroimmune system
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Heavy ethanol consumption during adolescence is associated with dysregulated neuroimmune responses and cognitive deficits in the developing adolescent brain. Various rodent models have shown proinflammatory neuroimmune responses in the adolescent brain, but there are factors that influence this observation. This review summarizes the recent findings on the effects of adolescent alcohol use on toll-like receptors, cytokines, chemokines, astrocyte and microglial activation, and discusses therapeutic interventions to mitigate neuroimmune maladaptations after ethanol exposure.
Heavy ethanol consumption during adolescence has been linked to neuroimmune response dysregulation and cognitive deficits in the developing adolescent brain. During adolescence, the brain is particularly susceptible to the pharmacological effects of ethanol that are induced by acute and chronic bouts of exposure. Numerous preclinical rodent model studies have used different ethanol administration techniques, such as intragastric gavage, self-administration, vapor, intraperitoneal, and free access, and while most models indicated proinflammatory neuroimmune responses in the adolescent brain, there are various factors that appear to influence this observation. This review synthesizes the most recent findings of the effects of adolescent alcohol use on toll-like receptors, cytokines, and chemokines, as well as the activation of astrocytes and microglia with an emphasis on differences associated with the duration of ethanol exposure (acute vs. chronic), the amount of exposure (e.g., dose or blood ethanol concentrations), sex differences, and the timing of the neuroimmune observation (immediate vs. persistent). Finally, this review discusses new therapeutics and interventions that may ameliorate the dysregulation of neuroimmune maladaptations after ethanol exposure.
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