… the hypothesis that sampling particulate material in exhaled air is a reproducible method for
… to quantify surfactant protein A (SP-A) and albumin levels. SP-A and albumin, two proteins …

… The recently developed method for collecting non-volatile material from exhaled air – PExA
(Particles in Exhaled air) is a promising new tool, but no direct comparison between the two …

… Particles in exhaled air (PEx) provide samples of respiratory tract lining fluid from small
airways containing, for example, Surfactant protein A (SP-A) and albumin, potential biomarkers of …

… the non-invasive measurement technique, Particles in Exhaled Air (PEx) and blood test were
useful … We measured surfactant protein A (SP-A) in the collected plasma and PEx samples. …

… Using a vacuum pump the exhaled air containing particles is drawn through the impactor
and the particles are collected by impaction according to size on the membrane. The particle …

… higher number exhaled particles and more surfactant protein A in … Smoking increased exhaled
number of particles and the … was developed for collection of particles in exhaled air (PEx). …

… of particles in exhaled air is a valid, noninvasive method for monitoring surfactant protein A
(… Surfactant protein A in exhaled particles and the SP-A/albumin ratio were lower (P = 0.002 …

… surfactant protein A and albumin in the respiratory tract lining fluid of the small airways and
influence the amount of exhaled … exhaled air and the concentrations of (a) surfactant protein A …

… surfactant protein A (SP-A) and pulmonary surfactant protein D … The levels of SP-A and
SP-D were detected in the exhaled … allowed the exhaled air to enter the collecting tube and be …

… L of exhaled air contained approximately 1.5 μg total protein. We identified 32 proteins in …
most prominent blood and BAL proteins: albumin, serotransferrin, surfactant protein A (SP-A)…