Figure 5. Effect of apocynin (100 nM) pre-incubation on lethal toxin (LeTx, 5 nM, 2 hrs)-induced cardiomyocyte contractile response.

A: resting cell length; B: Peak shortening (normalized to cell length); C: Maximal velocity of shortening (+ dL/dt); D: Maximal velocity of relengthening (- dL/dt); E: Time-to peak shortening (TPS); and F: Time-to-90% relengthening (TR₉₀). Mean ± SEM, n = 50 cells per group, * p<0.05 vs. control group (no drug treatment), #p<0.05 vs. LeTx 5 nM group.