Abstract
The effects of acute (single) and chronic ethanol administration on the level of pro-inflammatory cytokines (IL-1β and TNF-α), as well as on the level of mRNA NF-κB, TLR4 and its endogenous agonist, HMGB1 protein, were investigated in rats. It was shown that the level of TLR4, HMGB1 and cytokines was significantly higher than in control group. The ethanol withdrawal after prolonged administration resulted in dysregulation of cytokine levels, TLR4 and HMGB1. Changes in the level of TLR4 and HMGB1 mRNA demonstrated a similar pattern. The obtained data confirm that prolonged alcoholization leads to the activation of TLR4-dependent signaling in the prefrontal cortex of rats, and this can lead to a prolonged neuro-inflammatory process in the brain.
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