Vest Chest Physiotherapy Airway Clearance is Associated with Nitric Oxide Metabolism

Background. Vest chest physiotherapy (VCPT) enhances airway clearance in cystic fibrosis (CF) by an unknown mechanism. Because cilia are sensitive to nitric oxide (NO), we hypothesized that VCPT enhances clearance by changing NO metabolism. Methods. Both normal subjects and stable CF subjects had pr...

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Main Authors: Joseph H. Sisson, Todd A. Wyatt, Jacqueline A. Pavlik, Pawanjit S. Sarna, Peter J. Murphy
Format: Article
Language:English
Published: Wiley 2013-01-01
Series:Pulmonary Medicine
Online Access:http://dx.doi.org/10.1155/2013/291375
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author Joseph H. Sisson
Todd A. Wyatt
Jacqueline A. Pavlik
Pawanjit S. Sarna
Peter J. Murphy
author_facet Joseph H. Sisson
Todd A. Wyatt
Jacqueline A. Pavlik
Pawanjit S. Sarna
Peter J. Murphy
author_sort Joseph H. Sisson
collection DOAJ
description Background. Vest chest physiotherapy (VCPT) enhances airway clearance in cystic fibrosis (CF) by an unknown mechanism. Because cilia are sensitive to nitric oxide (NO), we hypothesized that VCPT enhances clearance by changing NO metabolism. Methods. Both normal subjects and stable CF subjects had pre- and post-VCPT airway clearance assessed using nasal saccharin transit time (NSTT) followed by a collection of exhaled breath condensate (EBC) analyzed for NO metabolites (). Results. VCPT shorted NSTT by 35% in normal and stable CF subjects with no difference observed between the groups. EBC concentrations decreased 68% in control subjects after VCPT (before = 115 ± 32 μM versus after = 37 ± 17 μM; ). CF subjects had a trend toward lower EBC . Conclusion. We found an association between VCPT-stimulated clearance and exhaled levels in human subjects. We speculate that VCPT stimulates clearance via increased NO metabolism.
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spelling doaj-art-13c9cbfa52b14661acc8b787e34de7502025-02-03T01:29:16ZengWileyPulmonary Medicine2090-18362090-18442013-01-01201310.1155/2013/291375291375Vest Chest Physiotherapy Airway Clearance is Associated with Nitric Oxide MetabolismJoseph H. Sisson0Todd A. Wyatt1Jacqueline A. Pavlik2Pawanjit S. Sarna3Peter J. Murphy4Pulmonary, Critical Care, Sleep & Allergy Division, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE 68198-5910, USAPulmonary, Critical Care, Sleep & Allergy Division, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE 68198-5910, USAPulmonary, Critical Care, Sleep & Allergy Division, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE 68198-5910, USAPulmonary, Critical Care, Sleep & Allergy Division, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE 68198-5910, USAPulmonary, Critical Care, Sleep & Allergy Division, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE 68198-5910, USABackground. Vest chest physiotherapy (VCPT) enhances airway clearance in cystic fibrosis (CF) by an unknown mechanism. Because cilia are sensitive to nitric oxide (NO), we hypothesized that VCPT enhances clearance by changing NO metabolism. Methods. Both normal subjects and stable CF subjects had pre- and post-VCPT airway clearance assessed using nasal saccharin transit time (NSTT) followed by a collection of exhaled breath condensate (EBC) analyzed for NO metabolites (). Results. VCPT shorted NSTT by 35% in normal and stable CF subjects with no difference observed between the groups. EBC concentrations decreased 68% in control subjects after VCPT (before = 115 ± 32 μM versus after = 37 ± 17 μM; ). CF subjects had a trend toward lower EBC . Conclusion. We found an association between VCPT-stimulated clearance and exhaled levels in human subjects. We speculate that VCPT stimulates clearance via increased NO metabolism.http://dx.doi.org/10.1155/2013/291375
spellingShingle Joseph H. Sisson
Todd A. Wyatt
Jacqueline A. Pavlik
Pawanjit S. Sarna
Peter J. Murphy
Vest Chest Physiotherapy Airway Clearance is Associated with Nitric Oxide Metabolism
Pulmonary Medicine
title Vest Chest Physiotherapy Airway Clearance is Associated with Nitric Oxide Metabolism
title_full Vest Chest Physiotherapy Airway Clearance is Associated with Nitric Oxide Metabolism
title_fullStr Vest Chest Physiotherapy Airway Clearance is Associated with Nitric Oxide Metabolism
title_full_unstemmed Vest Chest Physiotherapy Airway Clearance is Associated with Nitric Oxide Metabolism
title_short Vest Chest Physiotherapy Airway Clearance is Associated with Nitric Oxide Metabolism
title_sort vest chest physiotherapy airway clearance is associated with nitric oxide metabolism
url http://dx.doi.org/10.1155/2013/291375
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