Bicarbonate and phosphate constitute major salivary buffering components, and their importance consists in the neutralization of acidic gastric contents during reflux episodes. In this work, capillary electrophoresis with capacitively coupled contactless conductivity detector was applied for the analysis of bicarbonate, phosphate, and another inorganic (chloride, nitrite, nitrate, sulfate, thiocyanate) and organic anions (acetate, butyrate) to evaluate their levels in saliva. The background electrolytes of different composition and pH between 6.02-9.41 were assessed for the bicarbonate and phosphate determination by comparison of the real analyses of a model solution with the simulation by PeakMaster software. The optimized background electrolyte was composed of 10 mM 2-(N-morpholino)ethanesulfonic acid, 20 mM arginine, and 30 µM cetyltrimethylammonium bromide, pH 8.95. Using this BGE, the anion levels were compared in saliva from 20 patients suffering from gastroesophageal reflux disease (GERD) and saliva from 12 healthy subjects. Bicarbonate levels were significantly elevated in saliva from GERD patients suggesting the possible applicability of bicarbonate as a biomarker in non-invasive diagnostics of GERD by CE-C4 D.
- MeSH
- acidobazická rovnováha fyziologie MeSH
- acidóza diagnóza etiologie klasifikace patofyziologie MeSH
- chronická obstrukční plicní nemoc komplikace MeSH
- hydrogenuhličitany analýza MeSH
- lidé MeSH
- poruchy acidobazické rovnováhy * klasifikace patofyziologie MeSH
- respirační acidóza diagnóza MeSH
- Check Tag
- lidé MeSH
- Publikační typ
- kazuistiky MeSH
- přehledy MeSH
- MeSH
- chymotrypsin metabolismus MeSH
- dospělí MeSH
- hydrogenuhličitany analýza MeSH
- lidé MeSH
- Check Tag
- dospělí MeSH
- lidé MeSH
- MeSH
- acidobazická rovnováha MeSH
- časové faktory MeSH
- cholecystokinin farmakologie MeSH
- dospělí MeSH
- draslík analýza MeSH
- hydrogenuhličitany analýza MeSH
- karboanhydrasy MeSH
- lidé MeSH
- omezení příjmu potravy MeSH
- pankreas sekrece MeSH
- pankreatická šťáva MeSH
- sekretin farmakologie MeSH
- sodík analýza MeSH
- Check Tag
- dospělí MeSH
- lidé MeSH