Table 1.
Sham | TAC | |||
---|---|---|---|---|
WT | KO | WT | KO | |
n | 10 | 11 | 9 | 10 |
BW (g) | 21.2 ± 0.2 | 21.3 ± 0.4 | 21.0 ± 0.5 | 21.0 ± 0.4 |
LV mass (mg) | 107 ± 5 | 80 ± 5* | 145 ± 12* | 110 ± 8# |
LV mass/BW (mg/g) | 5.1 ± 0.3 | 3.8 ± 0.4* | 7.1 ± 0.7* | 5.3 ± 0.5# |
IVSd (mm) | 0.83 ± 0.05 | 0.68 ± 0.03* | 1.04 ± 0.06* | 0.89 ± 0.04# |
IVSs (mm) | 1.16 ± 0.06 | 1.04 ± 0.03 | 1.40 ± 0.07* | 1.16 ± 0.05# |
LVIDd (mm) | 4.09 ± 0.08 | 4.15 ± 0.09 | 4.10 ± 0.14 | 4.41 ± 0.11 |
LVIDs (mm) | 2.87 ± 0.08 | 3.14 ± 0.08 | 3.14 ± 0.07 | 3.61 ± 0.15*# |
LVPWd (mm) | 0.89 ± 0.04 | 0.65 ± 0.04* | 1.04 ± 0.06* | 0.70 ± 0.05*# |
LVPWs (mm) | 1.11 ± 0.05 | 0.83 ± 0.03* | 1.30 ± 0.08* | 0.88 ± 0.05*# |
EF (%) | 64 ± 1 | 57 ± 1* | 54 ± 2* | 45 ± 3*# |
FS (%) | 29 ± 1 | 25 ± 1* | 23 ± 1* | 18 ± 1*# |
E/A (mm/s) | 1.73 ± 0.11 | 1.53 ± 0.10 | 1.62 ± 0.10 | 1.57 ± 0.24* |
Data are expressed as means ± SEM.
BW body weight, LV left ventricular, IVSd interventricular septal thickness at end-diastole, IVSs interventricular septal thickness at end-systole, LVIDd left ventricular internal dimension at end-diastole, LVIDs left ventricular internal dimension at end-systole, LVPwd left ventricular posterior wall thickness at end-diastole, LVPws left ventricular posterior wall thickness at end-systole, EF ejection fraction, FS fractional shortening, E/A Doppler E/A ratio.
*Indicates P < 0.05 vs sham group subjected to treatment with a control antagomir.
#Indicates P < 0.05 vs experimental group.