51 -
Table 11. Echocardiography in rats fed high-salt diets for 15 weeks
CON
IVSd (cm) IVSs (cm) LVDWd (cm) LVPWs (cm) LV Mass (g) LVDd (cm) LVDs (cm) LV Vol. d (mL) LV Vol. s (mL) Stroke Vol. (mL) Ejec Frac (%) Frac Short (%)
0.20 0.01a
0.22 0.01ab
a
a
± 0.33±0.01 0.19±0.01 0.31±0.01 1.43±0.06 0.74±0.04 0.40±0.04 0.91±0.14 0.16±0.05 0.74±0.10 82.54±3.38 46.44±3.69 Values are presented as mean±SD. a a a
SS4
± 0.34±0.01 0.19±0.01 0.32±0.03 1.54±0.08 0.75±0.04 0.38±0.06 0.93±0.13 0.1±50.06 0.79±0.09 84.27±4.95 48.76±5.37 a
ab a
RS4
± 0.39±0.02 0.21±0.03 0.36±0.04 1.68±0.10 0.76±0.06 0.37±0.06 0.99±0.22 0.14±0.06 0.85±0.17 86.23±4.03 51.12±5.15
0.23 0.02bc b
ab
abc b
SS8
± 0.40±0.05 0.23±0.03 0.37±0.06 1.77±0.11 0.75±0.07 0.38±0.10 0.93±0.24 0.16±0.10 0.77±0.16 84.05±8.00 49.65±10.80 0.25 0.03c
b b
bc b
RS8
± 0.38±0.03 0.22±0.03 0.37±0.03 1.71±0.10 0.73±0.08 0.39±0.09 0.89±0.24 0.17±0.09 0.72±0.16 82.82±6.48 47.63±7.99 0.25 0.02c
b b c
b
Total
F-value
0.23 0.03
6.911***
± 0.37±0.04 0.21±0.03 0.35±0.04 1.62±0.15 0.74±0.06 0.38±0.07 0.93±0.19 0.15±0.07 0.77±0.14 83.98±5.39 48.72±6.76
7.225*** 3.873* 3.010* 13.429*** 0.199 0.087 0.216 0.094 0.715 0.405 0.39
abc superscripts within row are significantly difference at p<0.05 by Duncan's multiple range test. * : p<0.05 *** : p<0.001 IVSd, interventricular septal thickness at end-diastole; LVDd, left ventricular end-diastolic dimension; IVSs, interventricular septal thickness at end-systole; LVDs, left ventricular end-systolic dimension; LVPWd, left ventricle posterior wall in diastole; LVPWs, left ventricle posterior wall in systole; LV Vol.d, left ventricular volume in diastole; LV Vol.s, left ventricular volume in systole