Fig. 8From: The effect of FK506 (tacrolimus) loaded with collagen membrane and fibrin glue on promotion of nerve regeneration in a rat sciatic nerve traction injury modelCross-sectional image of the sciatic nerve. A Group A at 2 weeks: homogenous thickness and distribution of nerve fibers. B Group B at 2 weeks: dead spaces between fibers (arrow). C Group C at 2 weeks: separations between fibers (arrow). D Group A at 4 weeks: no significant difference with the result obtained at 2 weeks. E Group B at 4 weeks: dead spaces between fibers (arrow). F Group C at 4 weeks: decreased separations between fibers, with relatively homogeneous density compared with the result at 2 weeks after surgery (arrow). (Hematoxylin and eosin staining, ×40 magnification)Back to article page