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Respiratory System Commons

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Full-Text Articles in Respiratory System

Loss Of Cftr Function In Macrophages Alters The Cell Transcriptional Program And Delays Lung Resolution Of Inflammation, Dianne Wellems, Yawen Hu, Scott Jennings, Guoshun Wang Nov 2023

Loss Of Cftr Function In Macrophages Alters The Cell Transcriptional Program And Delays Lung Resolution Of Inflammation, Dianne Wellems, Yawen Hu, Scott Jennings, Guoshun Wang

School of Graduate Studies Faculty Publications

Cystic fibrosis (CF) is an autosomal recessive genetic disorder caused by mutations in the CF Transmembrane-conductance Regulator (CFTR) gene. The most severe pathologies of CF occur in the lung, manifesting as chronic bacterial infection, persistent neutrophilic inflammation, and mucopurulent airway obstruction. Despite increasing knowledge of the CF primary defect and the resulting clinical sequelae, the relationship between the CFTR loss of function and the neutrophilic inflammation remains incompletely understood. Here, we report that loss of CFTR function in macrophages causes extended lung inflammation. After intratracheal inoculation with Pseudomonas aeruginosa, mice with a macrophage-specific Cftr-knockout (Mac-CF) were able to mount an …


Age Based Evaluation Of Nut Aspiration Risk., Jill N D'Souza, Taher S Valika, Bharat Bhushan, Jonathan B Ida Oct 2020

Age Based Evaluation Of Nut Aspiration Risk., Jill N D'Souza, Taher S Valika, Bharat Bhushan, Jonathan B Ida

School of Medicine Faculty Publications

Objective: To identify an age at which initiation of whole nut into the pediatric diet could be considered safe, by evaluating the age distribution of children undergoing bronchoscopy with removal of nut or seed material from the airway. Method: A retrospective chart review over a ten-year period identifying children age 0–18 that have undergone bronchoscopy with retrieval of airway foreign bodies. A statistical analysis of demographic data was carried out to identify age distribution of aspiration events. Results: Sixty-four cases of foreign body aspiration were identified, of which 43 (67%) were of organic origin, specifically nuts. A Fisher's exact test …