[The formation of carcinogenic nitrosamines from a small amount of precursors in human gastric juice].

It has been shown in vitro with human acidic gastric juice the nitrosomorpholine (NMOR) formation from small doses of precursors (sodium nitrite and morpholine) with a significant difference relative to the control. The presented data suggest the possibility of the nitrosation reaction in the human gastric juice under hypo- and anacidic conditions. The data obtained are one more experimental confirmation of the epidemiological evidence of the potential role of nitrates (nitrites) in the etiology of stomach and esophageal cancers.