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An infant nasal microbial gene atlas uncovers intervention-driven microbiome shifts and salt-resistant pathogen expansion

Functional studies of how early-life interventions shape the airway microbiome remain scarce. Here, we performed metagenomic sequencing of 704 longitudinal nasal swabs from infants with and without cystic fibrosis (CF) to construct and characterize a non-redundant gene atlas of the infant nasal microbiome. We aimed to determine how the nasal microbiome is perturbed by early therapies, as CF is commonly treated with inhaled hypertonic saline to improve mucociliary clearance.

Trajectories of prematurity-associated lung disease: lifelong lung health

Preterm birth is increasingly recognised as adversely influencing lifelong lung function. This Series paper on prematurity-associated lung disease reviews studies reporting longitudinal lung function measurements in individuals who were born preterm. Evidence suggests that preterm birth alters lung function trajectories from early life onwards, with implications for future respiratory morbidity. We propose that this population needs rigorous follow up that should include systematic monitoring of lung function across the lifespan, starting in childhood.

Applying spirometry phenotypes to a longitudinal cohort born very preterm

To better characterise prematurity-associated lung disease, adult spirometry phenotype classifications (obstructive lung disease, preserved ratio impaired spirometry and dysanapsis) have been applied to children born preterm. It is unknown how these phenotypes track over time.

Impact of Obesity, Respiratory Symptoms, and Posture on Perioperative Respiratory Adverse Events and Lung Function in Children

Obesity is linked to altered lung function and increased perioperative respiratory adverse events (PRAEs). We examined the effects of obesity, respiratory symptoms, and posture on PRAEs, lung mechanics, and ventilation distribution in children undergoing general anesthesia.

A differentiated nasal epithelial cell model derived from children with acute wheeze and asthma

The airway epithelium is the primary structural and functional airway barrier and orchestrates innate immunity. Some children may have underlying epithelial vulnerabilities that contribute to the pathogenesis of acute wheeze and asthma.

Early life exposure to an episode of extreme air pollution and lung function later in childhood: the Hazelwood early life follow-up (ELF) study

Children are particularly vulnerable to air pollution, but the effects of early life exposure to acute, high-intensity pollution on later lung function remain poorly understood. We assessed the association between prenatal or infant exposure to fire-related fine particulate matter (PM2.5) from a six-week coal mine fire and subsequent lung function. 

Innate epithelial and functional differences in airway epithelium of children with acute wheeze

Early childhood wheeze is a major risk factor for asthma. However, not all children who wheeze will develop the disease. The airway epithelium has been shown to be involved in asthma pathogenesis. Despite this, the airway epithelium of children with acute wheeze remains poorly characterized.

Normative values for lung, bronchial sizes, and bronchus-artery ratios in chest CT scans: from infancy into young adulthood

To estimate the developmental trends of quantitative parameters obtained from chest computed tomography (CT) and to provide normative values on dimensions of bronchi and arteries, as well as bronchus-artery (BA) ratios from preschool age to young adulthood.

Profiling epithelial viral receptor expression in amniotic membrane and nasal epithelial cells at birth

Children with wheeze and asthma present with airway epithelial vulnerabilities, such as impaired responses to viral infection. It is postulated that the in utero environment may contribute to the development of airway epithelial vulnerabilities.  

tesG expression as a potential clinical biomarker for chronic Pseudomonas aeruginosa pulmonary biofilm infections

Pseudomonas aeruginosa infections in the lungs affect millions of children and adults worldwide. To our knowledge, no clinically validated prognostic biomarkers for chronic pulmonary P. aeruginosa infections exist. Therefore, this study aims to identify potential prognostic markers for chronic P. aeruginosa biofilm lung infections.