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Scand J Gastroenterol. 1994 Dec;29(12):1129-34.

Evaluation of pepsinogen A and gastrin-17 as markers of gastric cancer and high-risk pathologic conditions.

Author information

1
Dept. of Surgical Oncology, Queen Elizabeth Hospital, Birmingham, UK.

Abstract

BACKGROUND:

Gastric cancer remains a major cause of mortality and will remain so for the lifetime of current clinicians. Many cancers are diagnosed at a stage when current therapy cannot provide the hope of cure. A method for early detection of gastric cancer which can be widely applied is needed. The serum levels of pepsinogen A and gastrin-17 have been shown to vary in the presence of pathologic conditions of the gastric mucosa and may provide such a tool.

METHODS:

Serum samples were obtained from 432 patients undergoing endoscopy for undiagnosed dyspepsia. The levels of pepsinogen I and gastrin-17 were estimated by radioimmunoassay and compared with the final diagnosis. Discriminant analysis was performed to assess the value of the peptides predicting the presence of gastric cancer and the high-risk mucosal changes.

RESULTS:

Abnormal levels of gastrin-17 or pepsinogen A were found in 60% of patients with gastric cancer and 60% of those with one of the high-risk mucosal changes, the latter figure rising to 75% when the changes were in the upper third of the stomach. Discriminant analysis showed the log of gastrin-17 and log of pepsinogen A to be the best predictors of the high-risk mucosal changes, gastric cancer, and benign disease.

CONCLUSIONS:

These results confirm gastrin-17 and pepsinogen A as markers of pathologic gastric conditions and suggest that these peptides are potential screening tools worthy of further assessment.

PMID:
7886402
DOI:
10.3109/00365529409094899
[Indexed for MEDLINE]

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