Mean  ±SD  Group IA Group IB Group IC Group II Group III area % of caspase-3 positive immune-expression 0.902±0.0078 0.892n±0.0095 00.569n±0.0132 11.43 a ±0.0055 4,63 b ±0.0197

n non significant difference with the group IA a significant difference with the group IA b significant difference with the group II

Table 2: Showing the mean area percentage and optical density of caspase-3 positive immune-expression, in all studied groups.