Table 3.
The relationship between the protein expression of Bcl-XL and cell apoptosis in esophageal precancerous lesions and cancer tissues
| Groups | n |
Bcl-XL positive |
Bcl-XL negative |
||
| n (%) | AI(cells/mm2) | n (%) | AI(cells/mm2) | ||
| Normal epithelia | 39 | 4 (10.3) | 1.4 ± 1.2 | 35 (89.7) | 8.3 ± 4.3 |
| Simple hyperplasia | 52 | 11 (21.2) | 3.7 ± 3.6 | 41 (82.0) | 14.5 ± 3.7 |
| Dysplasia | 41 | 28 (68.3)a | 18.9 ± 8.2b | 13 (31.7) | 20.6 ± 6.3 |
| Carcinoma in situ | 2 | 1 (50.0) | 11.8 ± 3.3 | 1 (50.0) | 29.0 ± 5.7 |
| Invasive carcinoma | 64 | 46 (71.9) | 14.5 ± 7.5c | 18 (28.1) | 28.6 ± 8.6 |
a
P < 0.01, χ2 = 28.06 vs normal epithelia, χ2 test;
b
P < 0.01, t = 10.53 vs normal epithelia, Student’s t test;
c
P < 0.01, t = 6.10 vs com-pared with Bcl-X/L protein negative group, Student’s t test.