Table 2.
Body weight and left ventricular morphology and fibrosis
Con + Veh | Con + Dia | HF + Veh | HF + Dia | Wes + Veh | Wes + Dia | |
---|---|---|---|---|---|---|
Body weight, g | 525±21 | 270±15* | 608±26† | 314±15* | 620±25† | 341±18* |
TL, mm | 50.9±0.6 | 46.7±0.8* | 51.2±0.5 | 47.9±0.5* | 51.3±0.6 | 48.7±0.3* |
Heart wt/TL, mg/mm | 26.2±0.7 | 19.6±0.8* | 27.6±1.4 | 22.9±1.0* | 28.2±0.7 | 25.8±1.3‡ |
LV wt/TL, mg/mm | 18.7±0.6 | 13.6±0.5* | 19.4±0.7 | 16.0±0.8* | 19.6±0.4 | 17.6±0.7*‡ |
PWd, mm | 2.1±0.1 | 2.1±0.2 | 2.2±0.1 | 2.0±0.1 | 2.1±0.1 | 1.9±0.1 |
LVEDD, mm | 7.5±0.3 | 6.8±0.2 | 7.8±0.1 | 7.8±0.4‡ | 7.1±0.5 | 8.1±0.2*‡ |
LVEDD/PWd | 3.8±0.4 | 3.3±0.2 | 3.6±0.2 | 3.9±0.3 | 3.5±0.3 | 4.5±0.3*‡ |
LVESD, mm | 4.9±0.3 | 4.3±0.4 | 4.9±0.3 | 5.3±0.4 | 4.0±0.5 | 5.6±0.2 |
Myocyte CSA, μm2 | 432±29 | 481±61 | 422±39 | 405±50 | 401±52 | 334±37 |
Myocardial vol % collagen, % area | 2.6±0.1 | 2.9±0.3 | 2.6±0.2 | 2.6±0.1 | 3.3±0.2†§ | 3.0±0.1 |
Values are means ± SE. LV, left ventricular; PWd, posterior wall thickness; LVEDD, LV end-diastolic diameter; LVESD, LV end-systolic diameter; CSA, myocyte cross-sectional area; Vol % collagen, interstitial collagen volume percentage.
P < 0.05 vs. respective Veh treatment;
P < 0.05 vs. Con + Veh;
P < 0.05 vs. Con + Dia;
P < 0.05 vs. HF + Veh.