PDGFRB and ischemic stroke: However, already 1 hour after ischemic stroke we detected PDGFRß+/TUNEL+ pericytes (Figure 1(b) to (d)), a number that declined at 6 hours and then increased again at the later timepoints, without however, reaching statistically significant differences between the timepoints (Ctrl: 0.0% ± 0.0%; 1 h: 30.4% ± 28.2%; 3 h: 18.2% ± 18.9%; 6 h: 1.9% ± 3.2%; 12 h: 14.7% ± 25.5%; 24 h: 11.9% ± 10.4%) (Figure 1(d)).