Zeki Yildirim1, Bulent Bozkurt2, Duygu Ozol2, Ferah Armutcu3, Recep Akgedik4, Harun Karamanli5, Deniz Kizilirmak6, Mustafa İkizek7. 1. Department of Pulmonary Medicine, Gazi University School of Medicine, Ankara, Turkey. zekiy@hotmail.com. 2. Department of Pulmonary Medicine, Turgut Ozal University, Ankara, Turkey. 3. Department of Biochemistry, Cerrahpasa School of Medicine, Istanbul University, Istanbul, Turkey. 4. Department of Pulmonary Medicine, Ordu University School of Medicine, Ordu, Turkey. 5. Department of Pulmonary Medicine, Ataturk Chest Disease and Chest Surgery Research and Education Hospital, Konya, Turkey. 6. Department of Pulmonary Medicine, Hakkari State Hospital, Hakkari, Turkey. 7. Department of Internal Medicine, Tatvan State Hospital, Bitlis, Turkey.
Abstract
BACKGROUND: Helicobacter pylori (H. pylori) infection triggers both local inflammation, usually in gastric mucosa, and chronic systemic inflammation. It is assumed that this local and systemic inflammation is caused by extracellular products excreted by H. pylori. The aim of this study was to investigate the possible association between H. pylori infection and a local inflammatory response in the airway by using exhaled breath condensate technique. MATERIALS AND METHODS: This study includes 41 H. pylori seropositive patients who have gastric symptoms and 27 healthy control subjects. Pulmonary function tests (PFT), chest X ray, and physical examination were performed in all patients and interleukin-6 (IL-6), 8-isoprostane and nitrotyrosine levels were measured in exhaled breath condensate. RESULTS: Levels of IL-6 and 8-isoprostane in exhaled breath condensate (EBC) were significantly higher in H. pylori positive patients than control subjects (p < 0.05). Nitrotyrosine levels were also higher in H. pylori positive patients but the difference was not statistically significant. Both groups had similar leukocyte counts, C-reactive protein (CRP) levels and PFT parameters. CONCLUSION: H. pylori infection causes an asymptomatic airway inflammation which can be detected by exhaled breath condensate. The clinical importance of this inflammation remains unclear.
BACKGROUND:Helicobacter pylori (H. pylori) infection triggers both local inflammation, usually in gastric mucosa, and chronic systemic inflammation. It is assumed that this local and systemic inflammation is caused by extracellular products excreted by H. pylori. The aim of this study was to investigate the possible association between H. pyloriinfection and a local inflammatory response in the airway by using exhaled breath condensate technique. MATERIALS AND METHODS: This study includes 41 H. pylori seropositive patients who have gastric symptoms and 27 healthy control subjects. Pulmonary function tests (PFT), chest X ray, and physical examination were performed in all patients and interleukin-6 (IL-6), 8-isoprostane and nitrotyrosine levels were measured in exhaled breath condensate. RESULTS: Levels of IL-6 and 8-isoprostane in exhaled breath condensate (EBC) were significantly higher in H. pylori positive patients than control subjects (p < 0.05). Nitrotyrosine levels were also higher in H. pylori positive patients but the difference was not statistically significant. Both groups had similar leukocyte counts, C-reactive protein (CRP) levels and PFT parameters. CONCLUSION:H. pyloriinfection causes an asymptomatic airway inflammation which can be detected by exhaled breath condensate. The clinical importance of this inflammation remains unclear.
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