CONCENTRATION
0.15 mg/ml
LIVING CELLS
DEAD CELLS
% OF LIVING CELLS
% OF DEAD CELLS
TOTAL CELL
CONTROL
135, 000
15, 000
90
10
1.5X10
5
SiO
2
23, 400
106, 600
18
82
1.3X10
5
Methotrexate/SiO
2
3, 200
156, 800
2
98
1.6x10
5
Table 2:
Cytotoxic effect of Mtx/SiO
2
compared to SiO
2
and to a control group without treatment at 12 hours of exposure in a dilution of 0.15 mg/ml.
