Separation and measurement of ATP, ADP, AMP adenine-adenosine, lipid phosphates (lipid P), RNA, DNA, further of Mg2+ -dependent, total (Mg2+ -dependent plus Na+ -K+ -dependent) and Na+ -K+ -dependent ATPases was carried out in control (non-ulcerated) and ulcerated (mucosa up to 2.0 cm around the ulcer) jejunal mucosa of 11 patients with chronic jejunal ulcer, who had undergone a Billroth II gastric resection for duodenal ulcer. The levels of ATP, aDP, AMP, sum of ATP + ADP + AMP, lipid-P, RNA (related to 1.0 mg DNA) and the activity of Mg2+ -dependent, total (Mg2+ -dependent plus Na+ -K+ -dependent) and Na+ -K+ -dependent ATPase (related to 1.0 mg membrane protein) were significantly higher in the ulcerated jejunal mucosa than in the control one. The results indicate that (1) no circulatory damage can be found in the ulcerated jejunal mucosa; (2) a cellular hyperactivity (increased ATP breakdown and increased ATP resynthesis, increased RNA and lipid synthesis) occurs in the ulcerated jejunal mucosa; (3) the biochemical structure of cells differs significantly in the control and the ulcerated jejunal mucosa.
|Number of pages||6|
|Journal||Acta medica Academiae Scientiarum Hungaricae|
|Publication status||Published - Dec 1 1981|
ASJC Scopus subject areas