[Catecholamine absorption by stomach tissues in normal conditions and in experimental ulcer].

Different topographic zones of the stomach and the duodenum differ in the intensity of accumulation of exogenous adrenaline (A) and noradrenaline (NA). NA is markedly absorbed by the tissues of the greater and lesser curvatures of the stomach and is absorbed less intensely by the pylorus and duodenum. As regards A an opposite picture is observed.

[Effect of quateron on the dopamine and DOPA content in the stomach tissues in experimental ulcer].

Experimental neurogenous ulcer is accompanied by changes in the content of dopamin (DA) and dioxypyhenylalanine (DOPA) in the tissues of different functional regions of the stomach. Two hours following injury to the pyloroduodenal region, the content of DA rises, while that of DOPA declines. After 24 hours the content of the monoamine and especially that of the amino acid decreases along with emergence and development of morphological changes (hemorrhages, erosions, ulcers) in the gastric wall.