A Method for off-line Nasal Nitric Oxide Measurement
نویسندگان
چکیده
منابع مشابه
Measurement of nasal nitric oxide.
Nasal nitric oxide (nNO) is produced in high quantity in the upper airways. It is thought to be involved in host defence functions and regulation of mucociliary function, and to serve as a biochemical airborne transmitter. The measurement of nNO is easy and non-invasive. It has evolved as a screening test to exclude primary ciliary dyskinesia (PCD) in patients with suggestive symptoms, because ...
متن کاملCharacterization of exhaled nitric oxide: introducing a new reproducible method for nasal nitric oxide measurements.
Nitric oxide (NO) is present in the human nasal airways and has been suggested to originate primarily from the paranasal sinuses. The aim of this study was to establish a new and reproducible method for measurement of nasal NO. Through repeated single-breath measurements the intra- and inter-individual variations of NO levels in nasally (into a tightly fitting mask covering the nose) and orally...
متن کاملOff-line sampling of exhaled air for nitric oxide measurement in children: methodological aspects.
Measurement of nitric oxide in exhaled air is a noninvasive method to assess airway inflammation in asthma. This study was undertaken to establish the reference range of exhaled NO in healthy school-aged children and to determine the influence of ambient NO, noseclip and breath-holding on exhaled NO, using an off-line balloon sampling method. All children attending a primary school (age range 8...
متن کامل[Nasal nitric oxide].
Nitric oxide (NO) was considered an air pollutant until a few years ago. In the 1980s, Louis J. Ignarro and his team found that NO regulated vasodilatation and played an important role in several physiological processes in the cardiovascular system, discoveries that earned them the Nobel Prize in 1998. NO is now known to participate in such processes as hemostasis, the regulation of blood flow,...
متن کاملMeasurement of nitric oxide in human nasal airway.
The nasal output of nitric oxide (NO) is known to be high, but there have been varying reports of the exact level. We attempted to establish a quantitative measurement of nasal NO, and looked for a possible relationship with nasal resistance, at rest and during exercise. Nasal airway ventilation was performed by using an air pump at a constant flow rate, whilst the soft palate was elevated volu...
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ژورنال
عنوان ژورنال: Ear, Nose & Throat Journal
سال: 2002
ISSN: 0145-5613,1942-7522
DOI: 10.1177/014556130208100710