Background and Aims: There has been a recent growing interest in the role of nasal nitric
oxide (nNO) as a biomarker for osteomeatal complex obstruction in paranasal sinus …

Background Nasal nitric oxide (nNO) is considered a biomarker of nasal inflammation.
Objective To perform a systematic review with meta-analysis and meta-regressions on the …

Objective: The large amount of evidence and the renewed interest in upper and lower
airways involvement in infectious and inflammatory diseases has led Interasma (Global …

The main aim of this study was to use two metaheuristic optimization algorithms—a genetic
algorithm (GA) and a teaching-learning-based optimization (TLBO) algorithm—to determine …

Nasal nitric oxide (nNO) is a gas synthesized by the inducible and constitutive NO synthase
(NOS) enzyme in the airway cells of the nasal mucosa. Like lung nitric oxide, it is thought to …

Introduction: Chronic rhinitis is defined as nasal inflammation with the presence of minimum
two symptoms such as nasal obstruction, rhinorrhea, sneezing and/or itching one hour daily …

The human paranasal sinuses are the major source of intrinsic nitric oxide (NO) production
in the human airway. NO plays several roles in the maintenance of physiological …

Background Nasal nitric oxide (nNO) could be a biomarker for nasal passage inflammation
and sinus ostial patency. We have aimed to investigate the nNO concentration and the effect …

Background: Eosinophilic nasal polyps (NPs) are associated with the presence of asthma in
chronic rhinosinusitis (CRS) patients. Serum periostin has been considered a relevant …

Background Chronic rhinosinusitis (CRS) and asthma are collectively called unified airway
diseases. Periostin has been implicated in the pathophysiologic link of these conditions but …