Fig. 4

Calcein staining (as a measure of cell viability) of cartilage explants conditioned with simulated biological extract of turmeric (3, 9 or 15 μg/mL; TUR1, TUR3 and TUR5 respectively) compared with simulated biological extract containing no turmeric (C) in the presence (Panel a) or absence (Panel b) of lipopolysaccharide (LPS; 5 μg/mL). Explants were cultured for a total of 96 h and were conditioned with TUR for the first 48 h prior to exposure to LPS. * denotes significant change from baseline