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Citric acid inhibits growth of Helicobacter pylori in vitro: a new strategy for eradication

Zitronensäure hemmt das Wachstum von Helicobacter pylori in vitro: Eine neue Strategie für Eradikation

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Zusammenfassung

HINTERGRUND: Infektionen mit Helicobacter pylori stellen ein weltweites gesundheitliches Problem dar. Der Zusammenhang zwischen peptischer Ulkuskrankheit und Helicobacter pylori Infektionen ist gut dokumentiert. Demgemäß ist eine Eradikation obligatorisch, jedoch sind die hohen Kosten der multimedikamentösen Therapie sowie die Resistenz von Helicobacter pylori gegen Antibiotika limitierende Faktoren. METHODEN: Die wachstumshemmende Wirkung von 3 % Wasserstoffperoxid, 8,4 % Natriumbicarbonat, 2 % Ascorbinsäure, Zitronensäure mit Natriumzitrat, 7 % und 14 % Zitronensäure Lösungen wurde in vitro an neun Helicobacter pylori Stämmen getestet. ERGEBNISSE: Von den getesteten Substanzen zeigte Zitronensäure eine stark hemmende Wirkung auf das Wachstum von Helicobacter pylori Stämmen in vitro. Der hemmende Effekt war nicht nur bei Zitronensäurelösungen sondern auch bei einer Mischung von Zitronensäure mit Natriumzitrat in niedrigerer Konzentration zu sehen. SCHLUSSFOLGERUNG: Basierend auf unseren Resultaten soll Zitronensäure für die Eradikation von Helicobacter pylori klinisch bewertet werden.

Summary

BACKGROUND: About 50% of the world population is infected with Helicobacter pylori. The association of peptic ulcer disease with Helicobacter pylori is well documented. Therefore eradication is obligatory. However, the high costs of multidrug therapy, the resistance of Helicobacter pylori to antibiotics as well as the sometimes present drug intolerance are limiting factors. METHODS: The inhibitory effect of 3% hydrogen peroxide, 8.4% sodium bicarbonate, 2% ascorbic acid, citric acid in combination with sodium citrate, 7% and 14% citric acid solutions, respectively, on nine Helicobacter pylori strains were tested in vitro. RESULTS: Citric acid showed a potent inhibitory activity on growth of Helicobacter pylori strains in vitro. This was observed not only when citric acid was applied alone but also if citric acid was given together with low concentration of sodium citrate. Two percent ascorbic acid inhibited three, sodium bicarbonate two and hydrogen peroxide one of the nine tested Helicobacter pylori strains, respectively. CONCLUSIONS: Citric acid is a cheap substance present in many fruits and produced by food industry, and it demonstrated powerful inhibitory effect on the growth of Helicobacter pylori strains. On the basis of our findings citric acid should be further evaluated for the eradication of Helicobacter pylori.

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Correspondence to Jan Zazgornik.

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Zazgornik, J., Mittermayer, H. Citric acid inhibits growth of Helicobacter pylori in vitro: a new strategy for eradication. Wien Klin Wochenschr 123, 38–40 (2011). https://doi.org/10.1007/s00508-010-1524-9

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  • DOI: https://doi.org/10.1007/s00508-010-1524-9

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