BACKGROUND: Helicobacter pylori is a major risk factor for atrophic gastritis and gastric cancer. Various extragastric manifestations of H. pylori infection have also recently been suggested. However, the correlation between H. pylori and colorectal cancer (CRC) is controversial. The aim of this study was to examine the correlation between H. pylori, serum gastrin level, and atrophic gastritis with CRC. MATERIALS AND METHODS: Subjects were patients with CRC; controls were participants of a health check-up program that was conducted between October 1998 and March 2002 at four hospitals in Nagano Prefecture. For 121 newly diagnosed CRC cases, two controls matched by age (within 3 years), gender, and residence were randomly selected from the program participants. We conducted questionnaires and obtained blood samples from the cases and their controls. Consequently, the CRC cancer pairs consisted of 113 cases and 226 controls. RESULTS: Neither H. pylori infection nor gastrin level nor atrophic gastritis showed any association with a risk for CRC. However, serologically determined atrophic gastritis demonstrated significant elevation in odds ratios (ORs) for rectal cancer (OR = 3.15, 95% confidence interval; 1.19-8.35). CONCLUSIONS: Gastric conditions such as chronic H. pylori infection and atrophic gastritis are unlikely to increase the risk for CRC, although atrophic gastritis may increase the risk of rectal cancer.
BACKGROUND:Helicobacter pylori is a major risk factor for atrophic gastritis and gastric cancer. Various extragastric manifestations of H. pyloriinfection have also recently been suggested. However, the correlation between H. pylori and colorectal cancer (CRC) is controversial. The aim of this study was to examine the correlation between H. pylori, serum gastrin level, and atrophic gastritis with CRC. MATERIALS AND METHODS: Subjects were patients with CRC; controls were participants of a health check-up program that was conducted between October 1998 and March 2002 at four hospitals in Nagano Prefecture. For 121 newly diagnosed CRC cases, two controls matched by age (within 3 years), gender, and residence were randomly selected from the program participants. We conducted questionnaires and obtained blood samples from the cases and their controls. Consequently, the CRC cancer pairs consisted of 113 cases and 226 controls. RESULTS: Neither H. pyloriinfection nor gastrin level nor atrophic gastritis showed any association with a risk for CRC. However, serologically determined atrophic gastritis demonstrated significant elevation in odds ratios (ORs) for rectal cancer (OR = 3.15, 95% confidence interval; 1.19-8.35). CONCLUSIONS: Gastric conditions such as chronic H. pyloriinfection and atrophic gastritis are unlikely to increase the risk for CRC, although atrophic gastritis may increase the risk of rectal cancer.
Authors: Adeyinka O Laiyemo; Farin Kamangar; Pamela M Marcus; Philip R Taylor; Jarmo Virtamo; Demetrius Albanes; Rachael Z Stolzenberg-Solomon Journal: Cancer Causes Control Date: 2009-10-17 Impact factor: 2.506
Authors: Alexandros Strofilas; Emmanuel E Lagoudianakis; Charalambos Seretis; Apostolos Pappas; Nikolaos Koronakis; Dimitrios Keramidaris; Ilias Koukoutsis; Ioannis Chrysikos; Ioannis Manouras; Andreas Manouras Journal: J Clin Med Res Date: 2012-05-15
Authors: Hassan Brim; Marwah Zahaf; Adeyinka O Laiyemo; Mehdi Nouraie; Guillermo I Pérez-Pérez; Duane T Smoot; Edward Lee; Hadie Razjouyan; Hassan Ashktorab Journal: BMC Cancer Date: 2014-04-28 Impact factor: 4.430