Yu XW, Dong NN, Gong YH, Xu Q, Yuan Y.
In situ detection of
Helicobacter pylori in gastric cancer and precancerous diseases and its significance.
Shijie Huaren Xiaohua Zazhi 2008;
16:3740-3745. [DOI:
10.11569/wcjd.v16.i33.3740]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To investigate the distribution of H pylori infection in gastric cancer and precancerous diseases and the role of H pylori infection in the incidence and differentiation of gastric cancer, as well as the clinical value of H pylori infection detection using immunohistochemical method.
METHODS: Biopsy specimens of gastric mucosa in various diseases were randomly selected from 327 cases in Zhuanghe region in Liaoning Province, including 63 cases of superficial gastritis, 62 cases of atrophic gastritis and 202 cases of gastric cancer. HE staining and immunohistochemical staining were used to measure the density of H pylori infection in gastric mucosa and mucus.
RESULTS: The H pylori colonization status was higher in superficial gastritis group or in atrophic gastritis than gastric cancer group (χ2 = 96.998, 87.542, both P < 0.01), while the status was lower in gastric cancer group than peri-cancer mucosa (χ2 = 5.378, P < 0.01), higher in the intestinal gastric cancer group than in diffused gastric cancer (χ2 = 19.253, P< 0.01). When H pylori density score was ≤ 2, the H pylori free status in superficial gastritis and atrophic gastritis were lower than that of gastric cancer (χ2 = 6.526, 6.218, both P < 0.01), and when H pylori density score > 2, it was higher in superficial gastritis group or atrophic gastritis group than in gastric cancer group (χ2 = 20.252, 46.248, both P < 0.01), it was higher in atrophic gastritis than in superficial gastritis (χ2 = 4.746, P < 0.05), and it was higher in the intestinal gastric cancer than in diffused gastric cancer (χ2 = 6.784, P < 0.01).
CONCLUSION: The H pylori distribution is higher in superficial gastritis and atrophic gastritis than in gastric cancer, lower in gastric cancer than in peri-cancer mucosa, higher in the intestinal gastric cancer than in diffused one. There is no significant difference in the free H pylori density score between gastric cancer tissue and peri-cancer mucosa. Immunohistochemical detection of H pylori is better than HE staining.
Collapse