Plasma Helicobacter pylori Antibody Titers and Helicobacter pylori Infection Positivity Rates in Patients with Gallbladder Cancer or Cholelithiasis: a Hospital-Based Case-Control Study
Plasma Helicobacter pylori Antibody Titers and Helicobacter pylori Infection Positivity Rates in Patients with Gallbladder Cancer or Cholelithiasis: a Hospital-Based Case-Control Study
عنوان فارسی :
Plasma Helicobacter pylori Antibody Titers and Helicobacter pylori Infection Positivity Rates in Patients with Gallbladder Cancer or Cholelithiasis: a Hospital-Based Case-Control Study
عنوان انگلیسی :
Plasma Helicobacter pylori Antibody Titers and Helicobacter pylori Infection Positivity Rates in Patients with Gallbladder Cancer or Cholelithiasis: a Hospital-Based Case-Control Study
چکیده انگلیسی:
Objective: Gallbladder cancer is the commonest gastrointestinal cancer in northern Indian women. Some studies have examined the association between Helicobacter pylori infection and gallbladder cancer risk, but findings have been inconsistent. We aimed to examine the association between H. pylori infection and gallbladder cancer in Indian people. Materials and Methods: We conducted a hospital-based case-control study including 100 gallbladder cancer patients with gallstones who were 32 to 79 years old (cases; 72 women and 28 men), and 100 cholelithiasis patients aged 14 to 75 years (controls; 65 women and 35 men). All patients had a diagnosis of gallbladder cancer or cholelithiasis at the Sanjay Gandhi Post Graduate Institute of Medical Sciences in Lucknow having a high gallbladder cancer incidence in northern India, from May 2014 through July 2017. Plasma samples were collected from all patients before surgical treatment. Plasma H. pylori antibody titer was measured by the latex agglutination method and an autoanalyzer. H. pylori infection was defined as antibody titer ≥10 U/mL. Plasma antibody titers and H. pylori infection positivity rates were compared between cases and controls. Results: Mean plasma antibody titers (standard deviation, range) were 11.1 U/mL (11.6, 0–78) in cases and 13.6 U/mL (23.0, 1–164) in controls. H. pylori infection positivity rates were 41% and 42% in cases and controls, respectively. No significant differences in antibody titers or H. pylori infection positivity rates were found between cases and controls. Conclusions: We found no evidence of H. pylori infection as an important risk factor for gallbladder cancer in Indian people.
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