title: [Analysis of babA2  cagA and vacA genotypes of Helicobacter pylori in chronic gastritis and peptic ulcer].
abstract: To investigate the distribution of babA2 cagA and vacA genotypes of Helicobacter pylori (Hp) in chronic gastritis and peptic ulcer and to discuss the relationship between babA2, cagA and vacA genotypes of Hp and chronic gastritis and peptic ulcer.
  
  
  
  babA2, cagA genotypes and vacA subtype of 58 Hp strains isolated from patients of Zhejiang province with chronic gastritis or peptic ulcer were tested by polymerase chain reaction.
  
  
  
  The positive rates of babA2, cagA, vacAs1a, vacA m1 and vacA m2 of 58 Hp strains were 87.9%, 100%, 93.1%, 1.7% and 65.5%, respectively. There were no significant differences between the positive rates of babA2, vacA s1a and vacA m2 genes of Hp strains isolated from patients with chronic gastritis and peptic ulcer.
  
  
  
  The genotypes of Hp isolated from patients of Zhejiang province were predominatly babA2 positive, cagA positive and vacA s1a/m2. The relationships between babA2, cagA and vacA genotypes of Hp and chronic gastritis and peptic ulcer can not be identified.
authors.affiliation: Department of Medical Microbiology and Parasitology, College of Medical Sciences, Zhejiang University, Hangzhou 310031, China.
authors.forename: Hai-Yan
authors.initials: HY
authors.lastname: Mao
authors.forename: Ping-Chu
authors.initials: PC
authors.lastname: Fang
authors.forename: Shao-Jing
authors.initials: SJ
authors.lastname: Ye
mesh_terms: D018829:Adhesins, Bacterial; D000942:Antigens, Bacterial; D001426:Bacterial Proteins / Q000235:genetics*; D002352:Carrier Proteins / Q000235:genetics*; D002908:Chronic Disease; D005756:Gastritis / Q000382:microbiology*; D005838:Genotype; D016480:Helicobacter pylori / Q000235:genetics*; D006801:Humans; D010437:Peptic Ulcer / Q000382:microbiology*
chemical_list: D018829:Adhesins, Bacterial; D000942:Antigens, Bacterial; C400429:BabA protein, Helicobacter pylori; D001426:Bacterial Proteins; D002352:Carrier Proteins; C074689:VacA protein, Helicobacter pylori; C080866:cagA protein, Helicobacter pylori