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TN-C treatment of primary human chondrocytes. Release of A, IL-6 and IL-8; B, nitrate; C, PGE2 from cultured human chondrocytes treated with 0-10 μg/ml TN-C for 48 hours. HK- heat killed. 10 μg/ml heat killed TN-C served as a negative control. The error bars indicate SD of averaged treatment results (duplicate wells) from 3 donors.
