Fig. 4From: Hepatoprotective effects of N-acetylcysteine on liver injury by irisin upregulation and oxidative stress reduction in diabetic ratsRepresentative micrographs showing irisin expression for all experimental groups. Control and NAC group (a, b) showing irisin immune negativity. DM group (c) showing severe irisin expression (black arrow) compared to the control group. DM + NAC group (d) showing moderately irisin expression (black arrow) compared to control and NAC groups. ×20, immunohistochemical stainingBack to article page