CGN PE extract reduces hTERT, hTR and c-Myc expression in human breast cancer cells. ZR751 cells were treated with (5 – 40 μg/ml) or without CGN PE extract for up to 24 h. mRNA expression of hTERT, TEP1, hTR and c-Myc was determined by reverse transcriptase PCR. GAPDH was used as loading control. Each bar represents the mean ± SD (n = 3). Data denoted *(P < 0.05), **(P < 0.01) and ***(P < 0.001) are significant compared to control analysed by one-way ANOVA supplemented with Tukey’s HSD test.