Table 2.

Light microscopic changes observed in the different experimental groups

	Necrosis	Edema	Inflammation
Sham	-	-	-
Control IR	++	+++	+
Cl-IR	+	++	+
Os-IR	++	++	+

The relative pathological changes are ranked from - = No change; + = Focal change; ++ = Patchy change; +++ = Confluent change and ++++ = Massive change.