The phrase "airways fluid" is correct and usable in written English.
It can be used in medical or health-related contexts, particularly when discussing substances present in the airways, such as mucus or other fluids.
Example: "The patient was diagnosed with bronchitis, which resulted in an accumulation of airways fluid that made breathing difficult."
Alternatives: "respiratory fluid" or "bronchial fluid".
Wolfgang MC, Jyot J, Goodman AL, Ramphal R, Lory S. Pseudomonas aeruginosa regulates flagellin expression as part of a global response to airway fluid from cystic fibrosis patients.
Knockout of Foxi1 in mouse ionocytes causes loss of Cftr expression and disrupts airway fluid and mucus physiology, phenotypes that are characteristic of cystic fibrosis.
Thus, the massive amounts of NE and MPO present in the pathological milieu of CF and COPD airway fluid were thought to stem from the passive release of primary granules following neutrophil necrosis.
Among those, neutrophil burden and extracellular activity of the protease neutrophil elastase (NE) in CF airway fluid correlate best with disease progression in CF patients, from infancy to adulthood [8].
In CF, increased presence of active NE in the airway fluid of pediatric and adult patients has been correlated with impaired structural integrity, worsening lung function, and decreased body mass index over time [60 63].
The S-nitrosothiol bond is notoriously labile, introducing the potential for false positives and negatives [30], and in addition, SNO concentrations in the airways of asthmatics are extremely low, indeed, nearly undetectable in samples of airway fluid.
Further, LL-37 has been shown to complex with polyanionic DNA and F-actin bundles accumulated in cystic fibrosis airway fluid, thus leading to inactivation of these cationic peptides [26], [27].
In our recent study of lung airway fluid, we have further identified a subset of proteins derived from tumor tissue in the airway fluid specimens [ 29].
A major feature of the CF disease of the airway is disruption of the normal airway fluid and mucus secretion.
The relationship between AHi and AHe are shown in Fig. 1. 1) AHi is related to AHe (AHi > 38.8 mg/l, positive airway fluid balance; AHi < 38.8 mg/l, negative airway fluid balance).
