Informative complexity of exhaled nitrogen oxide chemistry

Exhaled Nitric Oxide

Prevalence of asthma and level of fractional exhaled nitrogen oxide among Malaysian school children

Materials and methods The use of FeNO measurements in clinical practice has been increasingly accepted based on a number of theoretical and practical factors. It is not only a user friendly, portable and non-invasive assessment tool, but is also able to detect inflammatory airway changes in children exposed to atmospheric pollutions. The study respondents were randomly selected from secondary s...

Exhaled nitric oxide in sarcoidosis.

BACKGROUND Increased production of nitric oxide (NO) by the lower respiratory tract is viewed as a marker of airway inflammation in asthma and bronchiectasis. NO is a potentially important immune modulator, inhibiting the release of several key pro-inflammatory cytokines. As sarcoidosis is characterised by granulomatous airway inflammation, we hypothesised that exhaled NO levels might be raised...

Caffeine decreases exhaled nitric oxide.

BACKGROUND Caffeine is known to inhibit phosphodiesterases, to mobilise intracellular calcium, and to act as an antagonist at adenosine receptors, all of which can potentially alter nitric oxide (NO) production. It was therefore hypothesised that caffeine may alter exhaled NO (eNO) levels. METHODS In a randomised, single blind, crossover manner, 12 normal subjects consumed either (1) coffee a...

Nitric oxide in exhaled air.

Much interest is now being focused on measurements of nitric oxide (NO) in exhaled air. In healthy subjects exhaled NO seems to originate mainly in the nasal airways, whereas the contribution from the lower respiratory tract is low. In certain inflammatory airway disorders, the excretion of NO into the airways is altered resulting in changes in the levels of NO in exhaled air. New techniques ha...