Table 2.
Time | Ethanol, % | n | Developed pressure, mmHg
|
Diastolic pressure, mmHg
|
CK, units/ml per heart gram-dry-weight | ||
---|---|---|---|---|---|---|---|
Preischemia | Reperfusion | Preischemia | Reperfusion | ||||
3 weeks | 10 | 6 | 113 ± 4 | 62 ± 4* | 10 | 16 ± 1* | 156 ± 22* |
5 | 6 | 111 ± 3 | 39 ± 6 | 10 | 34 ± 3* | 328 ± 76 | |
2.5 | 6 | 112 ± 4 | 38 ± 7 | 10 | 38 ± 2* | 348 ± 67 | |
Control | 6 | 115 ± 3 | 31 ± 7 | 10 | 57 ± 7 | 400 ± 60 | |
6 weeks | 20 | 10 | 118 ± 5 | 55 ± 4* | 10 | 26 ± 6* | 204 ± 42* |
10 | 10 | 116 ± 3 | 60 ± 2* | 10 | 22 ± 2* | 159 ± 25* | |
5 | 6 | 113 ± 7 | 55 ± 4* | 10 | 17 ± 2* | 187 ± 33* | |
2.5 | 6 | 105 ± 7 | 66 ± 7* | 10 | 18 ± 4* | 252 ± 20* | |
Control | 10 | 112 ± 4 | 35 ± 3 | 10 | 46 ± 4 | 356 ± 26 | |
12 weeks | 20 | 8 | 116 ± 6 | 56 ± 5* | 10 | 26 ± 6* | 181 ± 29* |
PC | 0 | 6 | 116 ± 4 | 62 ± 6* | 10 | 26 ± 4* | 167 ± 2* |
LV-developed and diastolic pressures and release of CK were measured during postischemic reperfusion. Experiments were performed as described in Table 1 in hearts isolated from guinea pigs consuming varying concentrations of ethanol in their drinking water for 3, 6, or 12 weeks. A group of hearts from animals not exposed to ethanol were subjected to ischemic preconditioning (PC). Data are presented as mean(SEM).
P < 0.05 versus control.