Brandenburg, K.S. et al.
Notes: The effect of tryptophan on skin hTERT immortalized normal keratinocytes was assessed at 24 and 48 hours with the RealTime-Glo™ Cell Viability Assay. After the read at 48 hours, CellTox™ Green Cytotoxicity Assay was added to each well to measure dead cells per well using the end-point protocol. Tryptophan, which was determined toxic to Pseudomonas biofilms, was not cytotoxic to the human keratinocytes. (4644)