Crimped or straight? Lung fiber shape influences elasticity

Stiff collagen and stretchy elastin fibers packed together in rows allow the respiratory system to stretch and snap back into shape. Scientists previously thought these fibers govern the mechanics of the airways due to their composition. New research has instead observed that differences in the shape and form of tissue fibers influence respiratory elasticity. These findings will help scientists better understand lung diseases, from chronic diseases like COPD to the lung ailment associated with vaping. Source

Nanoparticles wiggling through mucus may predict severe COPD

In a proof-of-concept experiment, researchers say they have successfully used microscopic human-made particles to predict the severity of patients’ chronic obstructive pulmonary disease (COPD) by measuring how quickly the particles move through mucus samples. The technique, say the researchers, could eventually help doctors deliver more effective treatments sooner. Source

Older adults with COPD more likely to use synthetic cannabinoids

Chronic obstructive pulmonary disease (COPD) is a progressive lung disease that’s often associated with a variety of health problems, including chronic muscle pain and insomnia. Psychoactive drug classes, like cannabinoids, are often prescribed to help reduce pain, promote sleep and decrease breathlessness. A study has found that older adults with COPD were twice as likely to use prescription synthetic oral cannabinoids compared to older adults without COPD, raising safety concerns. Source