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Protein expression of neural precursor cell expressed developmentally downregulated 4–1 in normal pituitary tissues and in pituitary adenoma (invasive and non-invasive).
| Positive (n) | |||||||
|---|---|---|---|---|---|---|---|
| Group | Cases (n) | Negative (n) | + | ++ | +++ | Total positives (n) | Positive rate (%) |
| Normal | 10 | 9 | 1 | 0 | 0 | 1 | 10.0 |
| Non-invasive | 24 | 15 | 5 | 4 | 0 | 9 | 37.5a |
| Invasive | 26 | 9 | 4 | 6 | 7 | 17 | 65.3b |
P<0.05 compared with the normal group
P<0.05 compared with the non-invasive group.
