Fig. 5
From: Effect and mechanism of Tetramethylpyrazine in repair of sciatic nerve injury in rats
Expression results of Collagen IV in vascular basement membrane (× 400). The pictures show the expression of type IV collagen of TMP, NS and NC groups under HE staining at different time periods (n = 10, each time point). Note. The yellow arrow represents the Collagen IV surrounding the vascular basement membrane