1. A combination of carbonates and Opuntia ficus-indica extract protects esophageal cells against simulated acidic and non-acidic reflux in vitro.
- Author
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Lehner MD, Scheyhing U, and Elsässer J
- Subjects
- Humans, Hydrogen-Ion Concentration, Carbonates chemistry, Carbonates pharmacology, Gastroesophageal Reflux drug therapy, Esophagus drug effects, Esophagus metabolism, Cell Line, Opuntia chemistry, Plant Extracts pharmacology, Plant Extracts chemistry, Antacids pharmacology
- Abstract
Buffering of stomach acid by antacids is a well-established symptomatic therapy for heartburn. In addition, preparations from prickly pear (Opuntia ficus-indica) have been shown to reduce tissue damage in experimental gastritis models and to attenuate gastrointestinal discomfort in patients. Both active principles have been included in a fixed-combination product for symptomatic treatment of heartburn containing carbonate antacids (CaCO3 and MgCO3) and an extract from Opuntia ficus-indica cladodes. The aim of the study was to characterize the acid neutralization and esophageal cell protective activities of the product and its individual active ingredients in a set of in vitro assays. Acid neutralization was assessed in a simulated stomach model. Protective activity of individual constituents and in combination was analyzed in an esophageal cell line (COLO-680 N) exposed to low pH and deoxycholic acid to simulate acidic and non-acidic reflux challenge. The combination product protected cells against low pH mediated cytotoxicity via acid neutralization by carbonates. Opuntia extract itself and the combination product attenuated bile acid-induced cell irritation as measured by reduced release of proinflammatory interleukin-6 and -8. In conclusion, addition of Opuntia extract to a mineral antacid provides dual protection against acidic and non-acidic simulated reflux challenge., (© 2024. The Author(s).)
- Published
- 2024
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