Table 1.
Blood gas analysis
| – | Time 1 | Time 2 | Time 3 | Time 4 |
|---|---|---|---|---|
| pH | ||||
| tMCAO N2 | 7.40 (0.04) | 7.44 (0.01) | 7.39 (0.03) | 7.41 (0.03) |
| tMCAO Ar | 7.40 (0.06) | 7.42 (0.03) | 7.39 (0.01) | 7.41 (0.04) |
| pCO2 (mmHg) | ||||
| tMCAO N2 | 47.7 (5.1) | 41.7 (3.6) | 48.7 (3.2) | 45.6 (4.5) |
| tMCAO Ar | 43.9 (7.6) | 44.4 (5.4) | 48.3 (5.9) | 43.7 (4.7) |
| pO2 (mmHg) | ||||
| tMCAO N2 | 160.0 (17.1) | 166.3 (8.1) | 165.0 (17.7) | 165.7 (23.4) |
| tMCAO Ar | 162.0 (7.0) | 169.3 (11.8) | 164.7 (6.1) | 165.3 (18.9) |
| cK+ (mmol L−1) | ||||
| tMCAO N2 | 4.8 (0.2) | 5.0 (0.6) | 5.3 (0.6) | 4.9 (0.2) |
| tMCAO Ar | 4.8 (0.5) | 5.4 (0.4) | 5.0 (0.1) | 4.5 (0.2) |
| cNa+ (mmol L−1) | ||||
| tMCAO N2 | 139.7 (0.6) | 145.0 (1.0) | 139.0 (1.7) | 143.3 (2.1) |
| tMCAO Ar | 141.7 (2.9) | 138.0 (3.0) | 142.0 (1.7) | 144.7 (0.6) |
Results were represented as mean (SD), n = 8 for tMCAO Ar group and n = 7 for tMCAO N2 group. Time 1 = baseline, 5 min after tail artery catheter insertion, Time 2 = after tMCAO induction, Time 3 = after onset of reperfusion, Time 4 = after the beginning of gas application (50% vol N2/50% vol O2 for tMCAO N2 group, 50% vol Argon/50% vol O2 for tMCAO Ar group)