Publications by authors named "Zeng-fen Zhou"
[Distribution of cagA 3' region, iceA, vacA and HP0519 on Helicobacter pylori isolated from China].
Zhonghua Liu Xing Bing Xue Za Zhi
June 2006
Article Synopsis
- The study focused on analyzing Helicobacter pylori strains from various regions in China, particularly Yunnan, to understand the genetic factors (cagA, iceA, vacA, HP0519) related to their pathogenicity.
- A total of 150 strains were examined using DNA extraction and PCR methods to identify the genetic markers and compare them across different geographic areas and ethnic groups.
- Results indicated a high prevalence of specific gene types across the strains, with no significant variation linked to geographic origin or clinical outcomes, although some genetic variations were noted among different ethnic groups within Yunnan.
Objective: To study the epidemiology and pathogenicity of mixed infection of Helicobacter pylori (H. pylori) strains with multiple vacA m-region subtypes and/or iceA mixed genotype among the Bai, Naxi, and Han populations in Yunnan province.
Methods: Gastric mucous membrane were obtained by gastroscopy from 444 patients with digestive ulcer or chronic gastritis, 165 of Han nationality, 117 of Bai nationality, and 162 of Naxi nationality.
[Study on metronidazole resistance to Helicobacter pylori from three populations with different ethnics in Yunnan].
Zhonghua Liu Xing Bing Xue Za Zhi
November 2004
Objective: To evaluate the prevalence of Helicobacter pylori (H.pylori) resistance to metronidazole among three populations in Yunnan.
Methods: Susceptibilities to metronidazole among 109 H.