Fig. 4
Evans blue staining, NMR imaging and H&E staining to evaluate lesion area after different treatment. A Digital images of various groups after TBI treatment. B Representative pictures of Evans blue extravasation in the right brains of various groups. C NMR imaging of TBI rat brain for analysis of lesion area. D H&E staining of lesion area. E Subcutaneously injected hydrogels on days 7, 21, and 28. F Quantitative analysis of the lesion volume. (± SD, n = 3; *P < 0.05)