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Numbers of mice used in the experiments.
| Cohort | Control | Sham | Vehicle | Low-dose1 × 104 | High-dose1 × 105 |
|---|---|---|---|---|---|
| A | 12 | 13 | 13 | 16 | |
| B | 6 | 9 | 13 | ||
| C | 1 | 7 |
Mice in cohort A were used for the blood flow measurement, behavioral, and histological evaluations; cohort B for blood and cerebrospinal fluid (CSF) sampling; and cohort C for in vivo imaging of injected cells.
