Table 2. Systolic blood pressure (SBP), body weight and brain weight of double transgenic rats before and after middle cerebral artery occlusion with reperfusion (MCAOR) or sham intervention; protocol 2 with blood pressure target of 130 mmHg and 7 days of follow-up.
Sham intervention | MCAOR | |||||||||||
Candesartan | Aliskiren | Candesartan | Aliskiren | |||||||||
N (after intervention) | 9 | 9 | 12 | 14 | ||||||||
N (at study end) | 9 | 9 | 11 | 13 | ||||||||
SBP before minipump (mmHg) | 177 | ± | 5 | 180 | ± | 5 | 187 | ± | 4 | 182 | ± | 5 |
SBP before intervention (mmHg) | 135 | ± | 3 | 132 | ± | 4 | 130 | ± | 4 | 132 | ± | 3 |
Weight before minipump (g) | 179 | ± | 4 | 183 | ± | 4 | 184 | ± | 3 | 179 | ± | 5 |
Weight before intervention (g) | 214 | ± | 3 | 219 | ± | 5 | 220 | ± | 3 | 222 | ± | 5 |
Weight 24 h after intervention (g) | 211 | ± | 3 | 215 | ± | 3 | 194 | ± | 3* | 197 | ± | 5* |
Weight 48 h after intervention (g) | 222 | ± | 3 | 225 | ± | 3 | 202 | ± | 3 | 205 | ± | 7 |
Weight 7 d after intervention (g) | 257 | ± | 4 | 259 | ± | 5 | 209 | ± | 14 | 223 | ± | 10 |
Brain weight 24 h after intervention (g) | 1.82 | ± | 0.01 | 1.83 | ± | 0.01 | 1.75 | ± | 0.02 | 1.78 | ± | 0.02 |
Differences between the treatment groups (candesartan vs. aliskiren) were not statistically significant. There was no vehicle group in this protocol because untreated animals do not survive 48 h after MCAOR.
Data are means ± standard error of the mean.
The Mann-Whitney-U test was used for comparisons.
*p<0.01 vs. same group before intervention.