TABLE 2.
Scoring of histopathological findings based on the updated Sydney system in stomachs of Mongolian gerbils infected with H. pylori
| Finding | Time after infection with H. pylori (mo)a
|
|||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0.5
|
1
|
2
|
3
|
4
|
5
|
6
|
||||||||
| N (0) | H (2) | N (1) | H (3) | N (1) | H (3) | N (2) | H (3) | N (2) | H (4) | N (2) | H (4) | N (2) | H (4) | |
| Neutrophil infiltration (activity) | — | 0 | 0 | 0 | 0 | 3.0 | 0 | 3.0 | 0 | 2.8 | 0 | 2.5 | 0 | 3.0 |
| Mononuclear cell infiltration | — | 0 | 0 | 0 | 0 | 3.0 | 0 | 3.0 | 0 | 2.8 | 0 | 2.5 | 0 | 3.0 |
| Intestinal metaplasia | — | 0 | 0 | 0 | 0 | 0 | 0 | 0.3 | 0 | 0 | 0 | 0 | 0 | 0.3 |
| Atrophy | — | 0 | 0 | 0 | 0 | 1.3 | 0 | 1.3 | 0 | 1.0 | 0 | 1.0 | 0 | 1.5 |
a
N, noninfected gerbils; H, H. pylori-infected gerbils; —, not examined. Values in parentheses are the number of gerbils in each group.