Table 1.

Increase in Indices of Chondrogenesis on Day 8 of Ossicle Development by Exposure to PEMF¹²

	Control	PEMF	Percent	P
mRNA aggrecan	6.1	22.5	269	0.02
mRNA type II collagen	11.8	21.9	86	0.05
35SO4 incorporation (cpm/mg)	2166 ± 387	4448 ± 293	105	0.005
GAG content (μg/mg)	1.4 ± 0.2	2.5 ± 0.2	79	0.01
Cartilage area (mm2)	24 ± 2.1	148 ± 11.7	517	0.001
Chondrocytes (n)	701 ± 227	3582 ± 675	411	0.005
Chondrocyte/cartilage	29.2	24.2		n.s.

GAG = glycosaminoglycan, PEMF = pulsed electromagnetic field