BDNF and Stroke: In Wistar rats, TGF-β and BDNF/TrkB levels were increased solely 24-h after photothrombotic stroke (TGF-β (F = 6.864 *p ≤ 0.05) (Fig. 4G); BDNF (F = 5.734 *p ≤ 0.05) (Fig. 4I) and TrkB (F = 115.3 *p ≤ 0.05) (Fig. 4K)).