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Biliary bile acid composition in gastric cancer
M Fracchia1, S Pellegrino, P Secreto
1Gastroenterology Unit, Ospedale Mauriziano Umberto I, Turin, Italy.
International Journal of Clinical & Laboratory Research
|June 5, 1999
Summary
Bile reflux is not linked to increased toxic bile acids in gastric cancer patients. This study found no significant differences in deoxycholic acid levels, suggesting bile acid composition may not promote gastric carcinogenesis.
Area of Science:
- Gastroenterology
- Oncology
- Biochemistry
Background:
- Bile reflux into the stomach is a suspected carcinogen.
- Secondary bile acids, like deoxycholic acid, are co-carcinogens in colorectal cancer.
- Bile acid composition in gastric cancer is largely unknown.
Purpose of the Study:
- To investigate biliary bile acid composition in gastric cancer patients.
- To compare bile acid profiles between gastric cancer patients and healthy controls.
- To assess the role of bile acids in gastric carcinogenesis.
Main Methods:
- Bile acid composition was analyzed in 11 gastric cancer patients and 23 healthy controls.
- High-performance liquid chromatography (HPLC) was used for bile acid measurement.
- Gastric cancer subtypes (antrum/body, intestinal/diffuse) were considered.
Main Results:
- No significant difference in deoxycholic acid levels between gastric cancer patients (24% +/- 2%) and controls (22% +/- 2%).
- No differences observed for other bile acids between the groups.
- Deoxycholic acid levels were similar in antral and intestinal-type gastric adenocarcinoma patients compared to controls.
Conclusions:
- Gastric adenocarcinoma is not associated with elevated levels of toxic secondary bile acids, including deoxycholic acid.
- Bile acid composition appears to play a reduced role in promoting gastric carcinogenesis.
- These findings may re-evaluate the significance of bile acid reflux in stomach cancer development.