Fig. 1From: The potential of Olea europaea extracts to prevent TGFβ1-induced epithelial to mesenchymal transition in human nasal respiratory epithelial cellsa Cytotoxicity of OE determined by MTT assay. *P < 0.05: significantly different from control. b Morphology of RECs treated with several concentrations of OE for 24 h (arrow showing round and shrunken cells)Back to article page