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Inflammation & Allergy - Drug Targets (Discontinued)

Eiditor-in-Chief

ISSN (Print): 1871-5281
ISSN (Online): 2212-4055

Assessment of Airway Inflammation by Exhaled Breath Condensate and Impedance Due to Gastroesophageal Reflux Disease (GERD)

Author(s): Yasuo Shimizu, Kunio Dobashi, Atsuto Nagoshi, Osamu Kawamura and Masatomo Mori

Volume 8 , Issue 4 , 2009

Page: [292 - 296] Pages: 5

DOI: 10.2174/187152809789352195

Price: $58

Abstract

Avoiding oxidative stress in the airways is important for the treatment of respiratory disease associated with gastroesophageal reflux disease (GERD). It is often difficult to decide whether GERD is causing airway inflammation or whether an airway disease is complicated by GERD. Measurement of exhaled breath condensate (EBC) is performed by cooling and collecting the airway lining fluid contained in exhaled air. A decrease of pH and an increase of the 8- isoprostane concentration in EBC have been observed in patients with mild to moderate asthma accompanied by GERD. There are still problems to be overcome before EBC can be used clinically, but pH and 8-isoprostane may be promising objective markers of airway inflammation due to GERD. The disease concept and diagnosis of GERD are constantly advancing, including the development of impedance methods. It is expected that treatment will be based on the latest diagnostic knowledge of GERD associated with respiratory disease and on monitoring of airway inflammation.

Keywords: Gastroesophageal reflux disease, exhaled breath condensate, asthma COPD, Rho, ROCK, 8-isoprostane, impedance, pH


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