Table II.

Changes in DNA content.

	Day 5 post-plating			Day 7 post-plating
	RA	MF (42 h)	RA+MF	RA	MF (90 h)	RA+MF
10 μT	71.35±2.64c	124.8±9.83a	74.90±9.21a	60.45±7.61b	98.67±3.68	56.20±3.62c
100 μT	69.67±3.33c	98.33±3.74	71.06±2.28c	51.33±3.20c	96.43±3.98	48.35±2.37c

Total amount of DNA (mg/dish) at the end of day 5 or 7 post-plating, following treatment with 2.0 μM RA and/or a 50-Hz MF, at 10 or 100 μT. Standardized data (%) over the respective controls, treated with vehicle and/or sham-exposed. Four and five experimental replicates were conducted at 10 or 100 μT, respectively. Each data value in the table represents the mean ± SEM of 20 dishes (at 10 μT) or 25 dishes (at 100 μT). ANOVA followed by the Student’s t-test;

^aP≤0.05;

^bP<0.01;

^cP<0.001.