Table 2.

Values of lactate release in cultures of normal chondrocytes treated with different NO donors compounds for 24 hours

	Lactate (μM/5 × 104 cells)
Control normal chondrocytes	2.30 ± 0.58 (7)
0.5 mM SNP	1.83 ± 0.65 (7)
1 mM SNP	1.33 ± 0.38 (7) †
2 mM SNP	1.01 ± 0.30 (7) †
0.5 mM NOC-12	2.91 ± 0.58 (7)
1 mM NOC-12	2.90 ± 0.66 (7)
2 mM NOC-12	2.86 ± 0.77 (7)

Values are the mean ± SD (number). NO, nitric oxide; SNP, sodium nitroprusside; NOC-12, N-ethyl-2(1-ethyl-2 hydroxy-2-nitrosohydrazine.