Table 4.
Size of left ventricle, risk region, and infarct
| Group | Body Weight, g | Heart Weight, mg | LV Weight, mg | Heart Weight/Body Weight | Risk Region, mg | Infarct Weight, mg | Risk Region, % of LV | Infarct, % of Risk Region | Infarct, % of LV |
|---|---|---|---|---|---|---|---|---|---|
| I | 29.2 ± 1.0 | 161.1 ± 7.8 | 118.6 ± 6.3 | 0.55 ± 0.01 | 43.2 ± 3.0 | 25.6 ± 2.3 | 36.8 ± 2.1 | 58.6 ± 1.8 | 21.7 ± 1.5 |
| II | 30.8 ± 2.4 | 166.6 ± 14.6 | 120.7 ± 9.4 | 0.54 ± 0.02 | 44.3 ± 2.4 | 23.5 ± 1.9 | 38.0 ± 2.8 | 53.4 ± 3.5 | 20.4 ± 2.1 |
| III | 32.3 ± 0.8 | 166.8 ± 6.5 | 124.1 ± 5.4 | 0.52 ± 0.02 | 42.0 ± 2.8 | 13.3 ± 2.0a,b | 33.9 ± 1.7 | 31.0 ± 3.4a,b | 10.4 ± 1.3a,b |
| IV | 31.6 ± 1.7 | 161.4 ± 12.3 | 121.8 ± 9.8 | 0.51 ± 0.03 | 40.1 ± 3.5 | 21.7 ± 2.5 | 33.1 ± 1.8 | 53.3 ± 3.3 | 17.6 ± 1.4 |
| V | 33.7 ± 1.1 | 195.1 ± 8.1 | 150.7 ± 7.5 | 0.58 ± 0.02 | 48.6 ± 3.9 | 14.1 ± 2.4a,c | 33.0 ± 3.4 | 27.9 ± 4.1a,c | 9.5 ± 1.8a,c |
| VI | 27.5 ± 0.8 | 150.8 ± 6.6 | 110.9 ± 6.1 | 0.55 ± 0.02 | 40.6 ± 2.7 | 22.7 ± 2.2 | 36.9 ± 2.0 | 55.1 ± 2.5 | 20.5 ± 1.9 |
| VII | 30.1 ± 0.7 | 160.2 ± 7.7 | 117.1 ± 5.1 | 0.53 ± 0.02 | 35.5 ± 3.7 | 7.92 ± 1.4a,d | 30.1 ± 2.5 | 22.6 ± 3.5a,d | 6.8 ± 1.1a,d |
| VIII | 28.4 ± 1.2 | 167.4 ± 10.7 | 127.1 ± 7.3 | 0.59 ± 0.03 | 42.0 ± 4.1 | 28.6 ± 3.1 | 33.0 ± 2.6 | 67.5 ± 2.5 | 22.4 ± 2.1 |
| IX | 30.1 ± 0.8 | 160.1 ± 6.0 | 119.3 ± 4.5 | 0.53 ± 0.01 | 36.1 ± 3.1 | 8.0 ± 0.83a,e | 30.1 ± 1.9 | 23.1 ± 2.7a,e | 6.8 ± 0.8a,e |
| X | 31.5 ± 0.9 | 177.2 ± 5.6 | 130.7 ± 3.7 | 0.57 ± 0.02 | 38.1 ± 3.9 | 24.9 ± 3.3 | 29.2 ± 2.9 | 63.2 ± 2.8 | 19.1 ± 2.5 |
| XI | 31.8 ± 1.0 | 174.4 ± 5.5 | 129.3 ± 4.1 | 0.55 ± 0.01 | 40.7 ± 3.1 | 24.3 ± 2.6 | 31.4 ± 2.1 | 58.6 ± 3.2 | 18.8 ± 2.0 |
| XII | 31.0 ± 1.0 | 158.1 ± 5.4 | 115.6 ± 4.4 | 0.51 ± 0.01 | 40.7 ± 2.1 | 14.1 ± 2.87a,f | 35.15 ± 1.2 | 33.3 ± 3.5a,f | 12.0 ± 1.4a,f |
| XIII | 31.8 ± 0.9 | 186.1 ± 7.9 | 143.7 ± 6.4 | 0.59 ± 0.02 | 47.1 ± 3.9 | 30.6 ± 2.8 | 32.59 ± 1.9 | 65.0 ± 3.3 | 21.2 ± 1.7 |
| XIV | 28.7 ± 0.72 | 162.2 ± 7.3 | 121.3 ± 5.4 | 0.57 ± 0.03 | 40.8 ± 2.5 | 23.2 ± 1.7 | 34.0 ± 2.0 | 57.6 ± 4.1 | 19.5 ± 1.8 |
| XV | 31.7 ± 1.5 | 145.2 ± 8.6 | 109.4 ± 6.1 | 0.46 ± 0.02 | 37.7 ± 4.4 | 6.32 ± 0.8a | 34.2 ± 2.76 | 19.3 ± 3.4a | 6.2 ± 1.0a |
Values are means ± SE. Heart weight, total heart weight (ventricles and atria); LV, left ventricle
a
P < 0.05 vs. groups I and II
b
P < 0.05 vs. group IV
c
P < 0.05 vs. group VI
d
P < 0.05 vs. group VIII
e
P < 0.05 vs. groups X and XI
f
P < 0.05 vs. group XIII and group XIV.