PMID: 19218691Feb 28, 2009Paper

Induced sputum in patients with interstitial lung disease: a non-invasive surrogate for certain parameters in bronchoalveolar lavage fluid

Journal of Physiology and Pharmacology : an Official Journal of the Polish Physiological Society
M SobieckaJ Chorostowska-Wynimko

Abstract

Induced sputum is a useful non-invasive method for the assessment of airway and parenchymal lung diseases. This study aimed to compare induced sputum and bronchoalveolar lavage fluid (BALF) cellular composition and T-lymphocyte subpopulations in patients with interstitial lung disease. We evaluated 33 patients: 15 with sarcoidosis, 11 with hypersensitivity pneumonitis, and 7 with idiopathic pulmonary fibrosis. The percentage of macrophages was significantly lower in induced sputum than in BALF in sarcoidosis (P=0.005), and the percentage of neutrophils was higher in induced sputum than in BALF in sarcoidosis (P=0.001) and hypersensitivity pneumonitis (P=0.006). A significant correlation was found between the BALF and induced sputum CD4+, CD8+ subsets and the CD4+/CD8+ ratio in both the whole patient group (r(s)=0.80, r(s)=0.88, r(s)=0.88, P<0.001, respectively) and in the 3 subgroups. A strong correlation of the T-lymphocyte subsets in induced sputum and BALF in patients with interstitial lung disease shows that induced sputum may be a non-invasive surrogate for certain parameters in BALF in these patients.

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Epigenetics Insights from Twin Studies

Find the latest research on epigenetics and twin studies here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Regulation of Vocal-Motor Plasticity

Dopaminergic projections to the basal ganglia and nucleus accumbens shape the learning and plasticity of motivated behaviors across species including the regulation of vocal-motor plasticity and performance in songbirds. Discover the latest research on the regulation of vocal-motor plasticity here.

Myocardial Stunning

Myocardial stunning is a mechanical dysfunction that persists after reperfusion of previously ischemic tissue in the absence of irreversible damage including myocardial necrosis. Here is the latest research.