Table 3.
Region | [Na+]br (mEq/kg wet weight) |
[K+]br (mEq/kg wet weight) |
|||
---|---|---|---|---|---|
Rostral | Caudal | Rostral | Caudal | ||
1. Dorsal ischemic edge | ipsilateral | 76±5 | 87±4 | 40±18 | 30±15 |
contralateral | 49±5 | 51±5 | 100±17 | 100±16 | |
2. Central ischemic core | ipsilateral | 68±6 | 73±4 | 70±17 | 80±13 |
contralateral | 49±4 | 51±4 | 100±13 | 113±9 | |
3. Ventral ischemic edge | ipsilateral | 100±4 | 95±6 | 50±19 | 40±16 |
contralateral | 54±4 | 60±3 | 100±19 | 110±13 |
[Na+]br and [K+]br (mean ± SD) were estimated by 23Na MRI and histochemical K+ staining, respectively, at the rostral (bregma −0.4 mm) and caudal (bregma −3 mm) coronal brain levels at 4.4 h after MCAO in rat #5. ROI placement is shown in Fig. 3. The SD values resulted from averaging over pixels within ROIs.
For every comparison of the ipsilateral and corresponding contralateral ROIs, P < 0.05.