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Comparison of TNF-α production in supernatant of KCs. In IR group, the TNF-α level in supernatant was in-creased with time, and reached the maximum (529.1 ± 30.9 ng/mL) at 12 h. But in anti-TLR4 group, the production of TNF-α was obviously inhibited by Ab against TLR4 compared with the IR group (P < 0.01).
