HSPB1 and myocardial infarction: Band densitometry of the Western blot results (n = 12 in each group) showed a significant increase of HSP27 protein and HSP27 phosphorylation in platelets from patients with myocardial infarction (MI) compared to controls (6.4 ± 1.0-fold versus 1.0 ± 0.9 and 5.9 ± 1.8-fold versus 1.0 ± 0.8; p < 0.05) (Figure 2B,C).