Fig. 3. Diastolic dysfunction from cocaine exposure. Cardiac relaxation time constant (τ) (A ) and left ventricular end-diastolic pressure (B ) are both increased by cocaine administration, but the effect is attenuated for both parameters by pioglitazone pretreatment. Error bars indicate SEM; n = 6 for both groups. **P < 0.01; ***P < 0.001.