Respiratory System Commons^™

Parasympathetic Activity And Bronchial Hyperresponsiveness In Athletes, Audrey Badza

The Downtown Review

Bronchial hyperresponsiveness (BHR) is a term used to describe the bronchial constriction response to environmental stimuli. BHR is increasingly common in endurance athletes due to increased exposure to some stimuli. The purpose of this review is to evaluate Stang et al.'s (2016) article, "Parasympathetic Activity and Bronchial Hyperresponsiveness in Athletes" and discuss the significance of their results. The results concluded that BHR is related to the parasympathetic activity of the heart rather than the pupils. The study concluded that there is an association between BHR and parasympathetic activity of the heart, methacholine is associated with BHR and cardiac vagal activity, …

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 …

Inhaled Epoprostenol Compared With Nitric Oxide For Right Ventricular Support After Major Cardiac Surgery, Kamrouz Ghadimi, Jhaymie L. Cappiello, Mary Cooter Wright, Jerrold H. Levy, Benjamin S. Bryner, Adam D. Devore, Jacob N. Schroder, Chetan B. Patel, Sudarshan Rajagopal, Svati H. Shah, Carmelo A. Milano, Inspire-Flo Investigators

Respiratory Therapy Faculty Publications and Presentations

Background: Right ventricular failure (RVF) is a leading driver of morbidity and death after major cardiac surgery for advanced heart failure, including orthotopic heart transplantation and left ventricular assist device implantation. Inhaled pulmonary-selective vasodilators, such as inhaled epoprostenol (iEPO) and nitric oxide (iNO), are essential therapeutics for the prevention and medical management of postoperative RVF. However, there is limited evidence from clinical trials to guide agent selection despite the significant cost considerations of iNO therapy.

Methods: In this double-blind trial, participants were stratified by assigned surgery and key preoperative prognostic features, then randomized to continuously receive either iEPO or iNO …

Understanding Our Airways: How Lung Structure And Function Is Impacted By Respiratory Infections And Immune Responses, Katherine Coll

McNair Research Journal SJSU

Understanding the underlying functions and interplaying systems that make up the respiratory system is a crucial step in the research and development of treatments for respiratory illnesses. In this literature review, I explore the complex biochemical processes that occur in the pulmonary epithelium and endothelium. As epithelial and endothelial cells serve a multitude of functions such as host protection and nutrient regulation, discussing the interplay between these cells and intercellular junctions and their immediate impact on the respiratory system is essential to understanding the impact of respiratory dysfunctions and diseases. This review further examines the different types of intercellular junctions …

Preparing For The Unexpected: Recognizing A Tortuous Thoracic Aorta During Ultrasound-Guided Thoracentesis, Michael Choi, Jessica Roettger, Christopher J. Smith

Graduate Medical Education Research Journal

Ultrasound-guidance has become the standard of care for bedside thoracentesis. This manuscript describes the importance of utilizing point-of-care-ultrasound (POCUS) and color Doppler in avoiding an unusual, but potentially catastrophic aortic puncture during thoracentesis. The case describes a 70 year-old man who presented with one week of shortness of breath. He was found to have a large left-sided pleural effusion on imaging studies. During a bedside POCUS examination, he was found to have a hyperechoic linear structure in his posterior left hemithorax. Ultrasound application of color Doppler revealed a pulsatile flow, confirming visualization of the aorta. The site of needle insertion …

Case Report: Cavitary Pneumonia In A 28 Year Old Male, Dan Zaayenga, Katelyn Courtney

Rowan-Virtua Research Day

Cavitary pneumonia can be caused by several different mechanisms. Such causes include suppurative necrosis (pyogenic lung abscess), caseous necrosis (tuberculosis), ischemic necrosis (pulmonary infarction) cystic dilatation of lung structures (ball value obstruction and Pneumocystis pneumonia) as well as malignant processes. Causes are subject to both environmental factors and host susceptibility. The most common cause of infectious process is tuberculosis with its propensity to cause extensive caseous necrosis. The potential for secondary infection after an individual develops a cavitary pneumonia is also great as it provides a shelter for various pathogens the flourish in an environment otherwise usually well-guarded by host …

Uh-02 A Case Report Of The Potential Link Between Pulmonary Fibrosis And Diabetes Mellitus, Bryson T. Rose, Isabella Nielson, Nnenna Igwe

SC Upstate Research Symposium

Pulmonary fibrosis is a chronic lung disease that is characterized by the progressive and irreversible scarring of the lung tissue. This scarring greatly diminishes the efficiency of pulmonary function. After being diagnosed with pulmonary fibrosis, patients live, on average, only three to five years. Diabetes mellitus is known to damage the tissue and blood vessels in organs such as the heart and kidneys due to increased intravascular pressure.

According to recent research, diabetes mellitus has also been linked to similar damage in the lungs. Additionally, a 2021 meta-analysis and systematic review of idiopathic pulmonary fibrosis suggests an association between diabetes …

Novel 129xe Magnetic Resonance Imaging And Spectroscopy Measurements Of Pulmonary Gas-Exchange, Alexander M. Matheson

Electronic Thesis and Dissertation Repository

Gas-exchange is the primary function of the lungs and involves removing carbon dioxide from the body and exchanging it within the alveoli for inhaled oxygen. Several different pulmonary, cardiac and cardiovascular abnormalities have negative effects on pulmonary gas-exchange. Unfortunately, clinical tests do not always pinpoint the problem; sensitive and specific measurements are needed to probe the individual components participating in gas-exchange for a better understanding of pathophysiology, disease progression and response to therapy.

In vivo Xenon-129 gas-exchange magnetic resonance imaging (¹²⁹Xe gas-exchange MRI) has the potential to overcome these challenges. When participants inhale hyperpolarized ¹²⁹Xe gas, it …

Comparison Of Dna Extraction Methods For Soft Tissue Samples, Steve Guzman, Nathaniel E. Hill, Mujtaba Shah, Jonathon Reynolds, Cole Farnsworth, Molly Henley, Alfred Amendolara, Laura Minor, John Dougherty Jr., John A. Kriak, Kyle B. Bills, David W. Sant

Annual Research Symposium

No abstract provided.

The Effects Of Vitamin B1 Analog, Benfotiamine, On The Prevention Of Non-Small Cell Lung Cancer, Emely Fernandez, Hannah Christensen, Kota A. Ramana

Annual Research Symposium

No abstract provided.

Assessing Burnout And Well-Being In Higher Education Health Science Faculty, Kristen Mchenry, Megan Koster, Gen Ludwig, Yong Gao, Jennifer Eichmeyer

Respiratory Therapy Faculty Publications and Presentations

This study aimed to examine and compare the extent of burnout among health science faculty at a higher education institution and their self-reported perception of well-being during the COVID-19 pandemic. The design of the study was cross-sectional, descriptive survey research. An electronic questionnaire was developed to measure the constructs of burnout and well-being. Validated instruments used in the survey included the Oldenburg Burnout Inventory (OLBI) and the World Health Organization-5 Well-being Index. The Qualtrics ^® platform was used to distribute the survey to all full-time faculty within the College of Health Sciences. 45 respondents from nursing, community and environmental health, …

The Accuracy Of Recreational Athletes In Self Detecting Ventilation Threshold During A Maximal Exercise Test, Andrew Biegner

Williams Honors College, Honors Research Projects

INTRODUCTION: Ventilatory threshold (VT) is where minute ventilation (VE) increases nonlinearly with increasing exercise intensity. Prior studies have shown that subjects can recognize VT by changes in breathing during exercise. Teaching recreational athletes to use VT as a training method could result in better quality training. PURPOSE: Determine if recreational athletes can accurately perceive changes in ventilation associated with VT during maximal exercise testing. METHODS: Subjects were recruited (n=20, age= 20.5 ± 1.7 yrs.) to participate in the study. Subjects performed a modified maximal treadmill protocol with gas analysis. Subjects indicated when they noticed a considerable change …

Agricultural Dust Derived Bacterial Extracellular Vesicle Mediated Inflammation Is Attenuated By Dha, Art J. Heires, Derrick R. Samuelson, Daniel Villageliu, Tara M. Nordgren, Debra J. Romberger

Journal Articles: Pulmonary & Critical Care Med

Dietary long-chain omega-3 polyunsaturated fatty acids (n-3 PUFA) and their pro-resolving metabolites are protective against atherosclerotic disease, and ameliorate systemic inflammatory conditions including lupus erythematosus, psoriasis, and bronchial asthma. Organic bioaerosol inhalation is a common and injurious hazard associated with agricultural occupations such as work in swine concentrated animal feeding operations (CAFOs) and is known to increase the risk for developing respiratory conditions such as asthma and COPD. Nearly all cells secrete membrane-bound vesicles (extracellular vesicles, EVs) that have the capacity to transmit protein, nucleic acid, and lipid signaling mediators between cells. Using a polymer-based isolation technique (ExoQuick, PEG) followed …

Extracellular Vesticles In Acute Respiratory Distress Syndrome: Understanding Protective And Harmful Signaling For The Development Of New Therapeutics, Matthew Bavuso, Noel Miller, Joshua M. Sill, Anca Dobrian, Ruben M. L. Colunga Biancatelli

Bioelectrics Publications

Acute respiratory distress syndrome (ARDS) is a severe respiratory condition characterized by increased lung permeability, hyper-inflammatory state, and fluid leak into the alveolar spaces. ARDS is a heterogeneous disease, with multiple direct and indirect causes that result in a mortality of up to 40%. Due to the ongoing Covid-19 pandemic, its incidence has increased up to ten-fold. Extracellular vesicles (EVs) are small liposome-like particles that mediate intercellular communication and play a major role in ARDS pathophysiology. Indeed, they participate in endothelial barrier dysfunction and permeability, neutrophil, and macrophage activation, and also in the development of a hypercoagulable state. A more …

Areas Of Work-Life That Contribute To Burnout Among Higher Education Health Science Faculty And Perception Of Institutional Support, Megan Koster, Kristen Mchenry

Respiratory Therapy Faculty Publications and Presentations

Background: COVID-19 added responsibilities to faculty in health-related fields. Educators in these areas have experienced pandemic-related role strain in both the clinical and academic settings.

Purpose: This investigation sought to identify how health science faculty at one institution perceived challenges related to the COVID-19 pandemic in their role and to glean opportunities for institutions to increase the degree of support for faculty.

Methods: An analysis of narrative comments was conducted on a survey assessing burnout and well-being. The survey was distributed to full-time faculty within the College of Health Sciences at a four-year institution. Using the areas of work-life model …