Normal Non-fluency Clinical Trial
Official title:
Measurements of Exhaled Nitric Oxide in Healthy Subjects in Thailand
The purpose of this study is to determine fractional exhaled nitric oxide (FeNO) level in healthy subjects among Thai populations.
Fractional exhaled nitric oxide (FeNO) were produced from epithelial cells of inflammatory
airways and eosinophils and this gas was discovered since 1991.
Fractional exhaled nitric oxide (FeNO) has direct association with severity of inflammation
of bronchial trees and sputum eosinophils and use for additional investigation for diagnosis
asthma or inflammatory airway diseases.
There are many factors from previous studies that associate with level of fractional exhaled
nitric oxide (FeNO), one of that factors is race therefore we can't use level from another
studies with different race for use as reference and there is no study about level of
fractional exhaled nitric oxide in Thai population.
It is therefore desirable to examine level of fractional exhaled nitric oxide (FeNO) in
healthy subjects among Thai population and will be the main objective of this research.
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Observational Model: Case-Only, Time Perspective: Cross-Sectional
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