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. 2014 Jul 7;9(7):e101900. doi: 10.1371/journal.pone.0101900

Table 1. Echocardiographic measurements.

Male WT Female WT Male cs-ERα−/− Female cs-ERα−/− Stats
Structural
LVPWId (mm/g) 0.03±0.003 0.04±0.002 0.03±0.006 0.039±0.003 a
LVPWIs (mm/g) 0.05±0.002 0.06±0.003 0.05±0.008 0.061±0.009 a
LVIDId (mm/g) 0.12±0.002 0.15±0.011 0.11±0.008 0.132±0.002 a, b
LVIDIs (mm/g) 0.06±0.005 0.08±0.010 0.006±0.005 0.067±0.003 a, b
IVSd 0.870±0.06 0.890±0.04 0.890±0.1401 0.940±0.064 a
IVSs 1.420±0.15 1.430±0.092 1.450±0.134 1.510±0.256 a
LVM 112.63±20.23 107.65±17.18 95.74±12.60 92.04±6.16
LVMI (mg/g) 3.790±0.45 4.660±0.69 3.250±0.45 3.980±0.09 a, b
Functional
FS (%) 48.68±3.16 47.01±3.47 45.80±2.91 48.88±2.44
E’ (mm/s) 42.41±7.77 36.78±4.78 33.16±5.45 41.08±9.90
A’ (mm/s) 33.16±6.22 N/A N/A N/A
S’ 34.63±1.44 28.17±3.10 26.84±2.98 28.32±4.10 b, c
IVCT (ms) 5.80±2.05 6.96±2.72 7.78±1.43 7.49±1.74
ET 38.05±3.66 42.11±2.26 38.33±4.18 41.86±3.52
IVRT (ms) 11.52±3.65 10.20±1.61 12.67±2.20 11.57±1.78
Tei Index 0.45±0.09 0.41±0.10 0.53±0.04 0.46±0.08

All dimensional measurements were indexed to body weight. FS, fractional shortening; E, peak velocity of early diastolic trans-mitral flow; A, peak velocity of late (atria) diastolic trans-mitral flow; S’, peak velocity of systolic mitral annular motion; E’, peak velocity of early diastolic mitral annular motion; A’, peak velocity of late (atrial) diastolic mitral annular motion; IVCT, iso-volumic contraction time; ET, LV ejection time; IVRT, iso-volumic relaxation time; Tei Index, LV performance index calculated as (IVCT+IVRT)/ET. Values given as mean ± SD (N = 4/group). N/A, not available; adenotes sex significance between male and female mice; bdenotes genotypic significance between wild type and cs-ERα−/− mice; cInteraction term of ANOVA analysis was significant; P<0.05 was considered significant.