Intragastric nitrosation and precancerous lesions of the gastrointestinal tract: testing of an etiological hypothesis.

Abstract

The N-nitrosoproline (NPRO) test was used to study whether subjects with precancerous conditions of the stomach have an elevated potential for endogenous nitrosation. The highest yield of NPRO after ingestion of beetroot juice (as a source of nitrate) and proline was seen in subjects whose pH of fasting gastric juice was about 1.5-2. No increased level of… (More)

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