Fig. 5.

Oxidative stress pretreatment reverses ventricular remodeling after injury. A: Fractional shortening (FS) and ejection fraction (EF) of mice preconditioned with PQ (n = 13) compared with control (n = 13). B: quantification of myocardial infarct size, as measured by collagen volume fraction (CVF; n = 13 mice/group). C: capillary density in the peri-infarct region in control and treated tissue determined by CD31 staining and quantification (n = 5 mice/group). Scale bars = 50 μm. *P < 0.05.