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ATP1A1 expression in normal brain and glioma tissues of different grades.
| ATP1A1 Positivity | |||
|---|---|---|---|
| Tumor grade | + | ++ | +++ |
| Normal brain | 1 | 0 | 0 |
| Grade I | 1 | 0 | 0 |
| Grade II | 8 | 2 | 0 |
| Grade III | 4 | 11 | 5 |
| GBM | 2 | 3 | 10 |
ATP1A1 positivity was defined by the percentage of cells that positively reacted with ATP1A1 antibody and was scored as follows: “+” 0–25%, “++” 26–75%, and “+++” 76–100%.
