title: Urease-independent chemotactic responses of Helicobacter pylori to urea, urease inhibitors, and sodium bicarbonate.
abstract: Helicobacter pylori CPY3401 and an isogenic urease-negative mutant, HPT73, showed chemotactic responses to urea, flurofamide (a potent urease inhibitor), and sodium bicarbonate. Since urea and sodium bicarbonate are secreted through the gastric epithelial surface and hydrolysis of urea by urease on the bacterial surface is essential for colonization, the chemotactic response of H. pylori may be crucial for its colonization and persistence in the stomach.
authors.affiliation: Department of Microbiology, Yamaguchi University School of Medicine, Ube, Japan.
authors.forename: T
authors.initials: T
authors.lastname: Mizote
authors.forename: H
authors.initials: H
authors.lastname: Yoshiyama
authors.forename: T
authors.initials: T
authors.lastname: Nakazawa
mesh_terms: D002633:Chemotaxis; D004791:Enzyme Inhibitors; D016480:Helicobacter pylori / Q000166:cytology*; D017693:Sodium Bicarbonate; D014508:Urea; D014510:Urease / Q000037:antagonists & inhibitors
chemical_list: D004791:Enzyme Inhibitors; D017693:Sodium Bicarbonate; D014508:Urea; D014510:Urease