Table 1. Cell cycle analysis after combination treatment with 5 μg ml⁻¹ of DHMEQ and 4 Gy of irradiation in LNCaP and PC-3 cells.

		Cell line
Cell cycle	Treatments	LNCaP	PC-3
% G1	Untreated	58.8±2.4	55.2±4.2
	DHMEQ alone	63.9±3.4	46.2±3.8
	Irradiation alone	54.4±2.3	42.9±1.7
	DHMEQ+irradiation	46.9±3.9	35.5±2.2
% S	Untreated	14.5±3.0	14.0±5.1
	DHMEQ alone	11.3±1.8	11.3±1.0
	Irradiation alone	7.6±2.3	10.5±1.1
	DHMEQ+irradiation	8.3±2.6	8.4±5.1
% G2/M	Untreated	26.7±4.2	30.8±3.6
	DHMEQ alone	24.8±1.8	42.5±3.3
	Irradiation alone	38.0±1.4	46.6±2.4
	DHMEQ+irradiation	44.8±2.5	56.1±2.1