[Features of exchange of calcium saliva in patients with gastroesophageal reflux disease].

OBJECTIVE: Introduction: The pathogenesis of gastroesophageal reflux disease (GERD) is a topical issue of modern gastroenterology. There are a number of scientific papers on changes in the qualitative and quantitative composition of saliva, which triggers a cascade of biochemical reactions, the consequence of which is the destruction of the resistance of the mucous membrane of the esophagus. Calcium is a macro element that provides the normal functioning of cells. Parathormone also regulates the metabolism of calcium in the body. The aim: To study the level of calcium of saliva in patients with GERD before and after 6 months after treatment, to investigate the correlation with the concentration of parathyroid hormone. PATIENTS AND METHODS: Materials and methods: The samples of saliva of patients with GERD before and after treatment are analyzed. The content of calcium in saliva was determined by photometric method. To test the level of parathyroid hormone, the Intact-PTH ELISA test was used. The treatment was carried out with pantoprazole doses of 40 mg per day. Normal values of electrolyte levels in human saliva are set on 10 virtually healthy volunteers. Data processing was carried out using Microsoft Excel. Correlations were calculated using the Pearson method. RESULTS: Results: 25 samples of saliva have been analyzed: 15 patients with GERD and 10 healthy individuals. Concentration of parathormonone in plasma was consistent with normal values. The concentration of calcium saliva for practically healthy individuals was 2.48 ± 0.07 mmol / L, in patients with GERD before treatment 1.92 ± 0.16 mmol / L, after treatment 2.04 ± 0.07 mmol / L. The correlation coefficient between the level of calcium salivation in patients with GERD and the plasma parathyroid hormone concentration before treatment was 0.21, after treatment 0.73. CONCLUSION: Conclusions: The concentration of calcium is statistically significantly reduced in patients with GERD by 22.5% and increased by 10% after treatment. There is a high correlation between the concentration of calcium after treatment and the level of plasma parathyroid hormone.