Gene May Explain Why Some Have Higher Stomach Cancer Risk
- Researchers have found a genetic explanation for why people infected with
H. pylori are at high risk for either stomach cancer or ulcers, but not
- Some people have a gene that causes them to produce low levels of gastric
acid, leaving the stomach less able to fight off toxins and the H.
pylori infection, which can lead to cancer.
- Others, who lack the gene, produce higher levels of gastric acid in the
stomach, which kills off infection but may cause ulcer formation.
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