Table 1. The percentage of viable, necrotic, early and late apoptotic cells upon treatment with TQ, TBHQ and TQ + TBHQ after 24 h compared to negative control cells. TBHQ was applied at a concentration of 60 μM and compared with the negative control, TQ (10 μM), and TQ + TBHQ (* shows p < 0.05).

Untreated and treated cells	Viable cells (%)	Necrotic cells (%)	Early apoptotic cells (%)	Late apoptotic cells (%)
Negative control cells	99.76	0.05	0.04****	0.15
TQ (10 μM) treated cells	66.54	2.90	27.94****	2.47
TBHQ (60 μM) treated cells	19.29	0.99	76.25	3.47
TQ (10 μM) + TBHQ (60 μM) treated cells	51.54	0.05	48.26****	0.05