Table 1.
Baseline | 10 weeks after MI | |||
---|---|---|---|---|
WT | PDE5-TG | WT | PDE5-TG | |
HR (bpm) | 463±12 | 463±9 | 475±9 | 472±14 |
ESV (µL) | 15±2 | 17±1 | 39±4* | 57±5*,† |
EDV (µL) | 26±2 | 29±2 | 48±4* | 65±6*,† |
ESP (mmHg) | 73±1 | 79±4 | 66±2 | 70±3 |
EDP (mmHg) | 3.5±0.4 | 3.6±0.6 | 3.5±0.9 | 6.5±1.3 |
CO (mL/min) | 6.8±0.4 | 7.2±0.5 | 5.3±0.6 | 4.9±0.8 |
SW (mmHg.µL) | 941±83 | 1002±89 | 524±95* | 372±86* |
Ea (mmHg/µL) | 5.3±0.3 | 5.2±0.3 | 7.4±1 | 10.2±3 |
PAMP (mW/µL2) | 94±15 | 84±14 | 25±5* | 13±3* |
Tau (ms) | 7.3±0.4 | 7.4±0.4 | 8.2±0.5 | 10.4±0.5*,† |
Slope of EDPVR | 0.26±0.02 | 0.25±0.03 | 0.33±0.05 | 0.70±0.17* |
HR, heart rate; ESV and EDV, end-systolic and end-diastolic volume; ESP and EDP, end-systolic and end-diastolic pressure; CO, cardiac output; SW, stroke work; Ea, effective arterial elastance; PAMP, preload-adjusted maximal power; Tau, isovolumic relaxation time (Weiss); Slope of EDPVR, slope of end-diastolic pressure-volume relationship.
P<0.05 versus same genotype at baseline,
P<0.05 versus WT after MI