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[Differences in fraction of exhaled nitric oxide values measured by two offline methods or NIOXmino in adult Japanese asthmatics]. 2010

Takahiro Tsuburai, and Naomi Tsurikisawa, and Noritaka Higashi, and Sayaka Tatsuno, and Yuma Fukutomi, and Hidenori Tanimoto, and Kiyoshi Sekiya, and Chiyako Oshikata, and Mamoru Otomo, and Yuji Maeda, and Masami Taniguchi, and Kunihiko Ikehara, and Kazuo Akiyama
Clinical Research Center for Allergy and Rheumatology, National Hospital Organization, Sagamihara National Hospital.

BACKGROUND The fraction of exhaled nitric oxide (FeNO) is a useful marker of asthma control. The FeNO measurement with two offline methods and NIOXmino may be more affordable, no studies have examined the differences in FeNO values measured with various methods in adult asthmatics. METHODS The study population comprised 39 stable asthmatics treated with inhaled steroids at our outpatient clinic. FeNO values were measured by two offline methods (Sievers and CEIS), NIOXmino. RESULTS FeNO(NIOXmino) values were significantly correlated with those of FeNO(Sievers) (r=0.935, P< 0.001) and FeNOCEIS (r=0.908, P< 0.001). However, FeNO(NIOXmino) values were low compared with FeNO(Sievers) (FeNO(NIOXmino)=0.848 x FeNO(Sievers)) and FeNO(CEIS) (FeNO(NIOXmino)=0.672 x FeNO(CEIS)). CONCLUSIONS Differences exist in the values of FeNO measured by various methods: conversion equations are needed to compare the FeNO values among these three methods.

UI MeSH Term Description Entries
D008297 Male Males
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D009569 Nitric Oxide A free radical gas produced endogenously by a variety of mammalian cells, synthesized from ARGININE by NITRIC OXIDE SYNTHASE. Nitric oxide is one of the ENDOTHELIUM-DEPENDENT RELAXING FACTORS released by the vascular endothelium and mediates VASODILATION. It also inhibits platelet aggregation, induces disaggregation of aggregated platelets, and inhibits platelet adhesion to the vascular endothelium. Nitric oxide activates cytosolic GUANYLATE CYCLASE and thus elevates intracellular levels of CYCLIC GMP. Endogenous Nitrate Vasodilator,Mononitrogen Monoxide,Nitric Oxide, Endothelium-Derived,Nitrogen Monoxide,Endothelium-Derived Nitric Oxide,Monoxide, Mononitrogen,Monoxide, Nitrogen,Nitrate Vasodilator, Endogenous,Nitric Oxide, Endothelium Derived,Oxide, Nitric,Vasodilator, Endogenous Nitrate
D001944 Breath Tests Any tests done on exhaled air. Breathalyzer Tests,Breath Test,Breathalyzer Test,Test, Breath,Test, Breathalyzer,Tests, Breath,Tests, Breathalyzer
D005260 Female Females
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D001249 Asthma A form of bronchial disorder with three distinct components: airway hyper-responsiveness (RESPIRATORY HYPERSENSITIVITY), airway INFLAMMATION, and intermittent AIRWAY OBSTRUCTION. It is characterized by spasmodic contraction of airway smooth muscle, WHEEZING, and dyspnea (DYSPNEA, PAROXYSMAL). Asthma, Bronchial,Bronchial Asthma,Asthmas

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