Fig. 5From: Transcriptomic analysis on the effects of melatonin in gastrointestinal carcinomasThe effects of melatonin in CRC 5-FU resistant cell lines. Relative mRNA expression of ATR (a) and the IC50 values of 5-FU for cell viability inhibition (b) in HCT-8/5-FU with or without melatonin treatment for 24 h. Independent sample t-test was used to conduct significance analysis. * p < .05, ** p < .01, *** p < .001Back to article page