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Table 1 Heart weight and echocardiographic indices

From: Effects of rhodiola crenulata on mice hearts under severe sleep apnea

  Control Hypoxia + Saline Hypoxia + RC90 Hypoxia + RC270
Number of mice 8 8 8 8
Body weight (BW), g 21.56 ± 0.56 21.95 ± 1.32 21.79 ± 1.04 20.50 ± 1.44
Whole heart weight (WHW), g 0.108 ± 0.009 0.111 ± 0.007 0.109 ± 0.015 0.107 ± 0.008
Left ventricular weight (LVW), g 0.078 ± 0.009 0.077 ± 0.008 0.076 ± 0.015 0.078 ± 0.004
WHW/BW (x104) 48.28 ± 5.62 50.74 ± 4.77 50.04 ± 8.22 52.73 ± 3.07
LVW/BW (x104) 37.75 ± 4.43 32.65 ± 9.76 34.97 ± 8.26 38.83 ± 3.26
LVW/WHW 0.73 ± 0.08 0.64 ± 0.19 0.69 ± 0.06 0.74 ± 0.05
WHW/Tibia, g/mm (x104) 58.74 ± 4.28 56.85 ± 16.99 60.79 ± 8.3 59.66 ± 4.72
LVW/Tibia, g/mm (x104) 43.02 ± 4.95 39.60 ± 11.79 42.40 ± 8.48 43.81 ± 2.40
(IVSd), mm 0.75 ± 0.06 0.70 ± 0.04 0.72 ± 0.09 0.69 ± 0.04
(LVPWd), mm 0.77 ± 0.08 0.61 ± 0.09 0.64 ± 0.10 0.68 ± 0.09
(LVIDd), mm 3.74 ± 0.20 3.69 ± 0.30 3.94 ± 0.16 3.58 ± 0.31
(LVIDs), mm 2.45 ± 0.44 2.63 ± 0.33 2.62 ± 0.20 2.27 ± 0.32
Fractional Shortening (FS), % 34.80 ± 10.43 28.61 ± 7.05* 33.39 ± 4.29# 36.64 ± 5.47##
  1. Values are Mean ± SD. WHW/BW whole heart weight normalized by body weight; LVW/BW left ventricular weight normalized by body weight; LVW/WHW left ventricular weight normalized by whole heart weight; WHW/Tibia whole heart weight normalized by tibia length; LVW/Tibia left ventricular weight normalized by tibia length; IVSd inter-ventricular septum at diastole; LVPWd left ventricular posterior wall thickness at diastole; LVIDd internal dimension at diastole of left ventricle; LVIDs internal dimension at systole of left ventricle; FS: fractional shortening (LVIDd-LVIDs/LVIDd x100)
  2. * P < 0.05, significant differences from the Control group. #P < 0.05, ##P < 0.01, significant differences from the Hypoxia group