| Abstract: OBJECTIVE: We aimed to investigate the protective effect of selected treatment agents on liver injury in lipopolysaccharide (LPS)-induced rat sepsis model.
BACKGROUND: The sepsis includes complex inflammatory responses between a microbial pathogen and the host immune system, and leads to organ failure and also death.
METHODS: This study was performed with 29 male Wistar Albino rats. Rats were divided randomly into five groups: Sham group, LPS-treated sepsis group, LPS+thalidomide treated group, LPS+etanercept treated group and LPS+thalidomide+etanercept treated group, respectively. Liver tissue tumor necrosis factor α (TNF-α), interleukin 1β (IL-1β) and interleukin 6 (IL-6) levels were determined by enzyme-linked immuno-sorbent assay (ELISA) method. The expression of nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB) was performed using western blot analysis.
RESULTS: The levels of tissue TNF-α, IL-1β and IL-6 were found statistically significantly higher in sepsis group than in the sham group. TNF-α levels were found statistically significantly decreased in LPS+etanercept and LPS+thalidomide+etanercept treated groups when compared with LPS group (p < 0.05). For IL-1β and IL-6 levels a statistically significant decline was observed in the LPS+thalidomide and LPS+etanercept treated groups compared to the LPS group (p < 0.05). Expression of NF-κB protein in liver tissue was significantly elevated in the LPS group compared to sham group (p < 0.001). In treatment groups, a marked decrease was observed in NF-κB protein expression.
CONLUSION: The results of this investigation suggested that etanercept and thalidomide administration may have a beneficial effect on LPS-induced sepsis. So, the present study may have significant clinical relevance, but clinical trials are needed to confirm these results (Tab. 1, Fig. 1, Ref. 36).
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