Effects of different Helicobacter pylori culture filtrates on growth of gastric epithelial cells.

Aim: To study the effects of different Helicobacter pylori (H pylori) culture filtrates on growth of gastric epithelial cells.

Methods: Broth culture filtrates of H pylori were prepared. Gastric epithelial cells were treated with the filtrates, and cell growth was determined by growth curve and flow cytometry.

[Risk factors of elderly patients with total gastrectomy for gastric cancer].

Objective: To analyze the relative risk factors of elderly patients with total gastrectomy for gastric cancer.

Methods: The risk factors for hospital death and postoperative complications in 131 elderly patients undergoing total gastrectomy for gastric cancer from Aug. 1994 to Aug.