keyword
MENU ▼
Read by QxMD icon Read
search

Airway clearance

keyword
https://www.readbyqxmd.com/read/28431414/intratracheal-instillation-of-neutrophils-rescues-bacterial-overgrowth-initiated-by-trauma-damage-associated-molecular-patterns
#1
Kiyoshi Itagaki, Ingred Riça, Jing Zhang, Dave Gallo, Melissa DePrato, Leo E Otterbein, Carl J Hauser
BACKGROUND: Nosocomial pneumonias are common in trauma patients and so interventions to prevent and treat nosocomial pneumonia may improve outcomes. Our prior work strongly suggests that tissue injury predisposes to infections like nosocomial pneumonia because mitochondrial debris originating from injured cells contains damage-associated molecular patterns that can reduce neutrophil (PMN) migration into the airway and diminish PMN function in response to bacterial inoculation of the airway...
May 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28431248/spontaneous-chitin-accumulation-in-airways-and-age-related-fibrotic-lung-disease
#2
Steven J Van Dyken, Hong-Erh Liang, Ram P Naikawadi, Prescott G Woodruff, Paul J Wolters, David J Erle, Richard M Locksley
The environmentally widespread polysaccharide chitin is degraded and recycled by ubiquitous bacterial and fungal chitinases. Although vertebrates express active chitinases from evolutionarily conserved loci, their role in mammalian physiology is unclear. We show that distinct lung epithelial cells secrete acidic mammalian chitinase (AMCase), which is required for airway chitinase activity. AMCase-deficient mice exhibit premature morbidity and mortality, concomitant with accumulation of environmentally derived chitin polymers in the airways and expression of pro-fibrotic cytokines...
April 20, 2017: Cell
https://www.readbyqxmd.com/read/28424226/objective-measurement-of-adherence-to-out-patient-airway-clearance-therapy-by-high-frequency-chest-wall-compression-in-cystic-fibrosis
#3
Christina L Mikesell, Robert R Kempainen, Theresa A Laguna, Jeremiah S Menk, Andrew R Wey, Philippe R Gaillard, Warren E Regelmann
BACKGROUND: Objective measures of adherence to high-frequency chest wall compression (HFCWC, also known as high frequency chest wall oscillation, HFCWO), a form of airway clearance therapy for patients with cystic fibrosis, are lacking. We used a novel electronic monitoring device integrated into an HFCWC vest to measure adherence compared with self-reported adherence. We determined factors that influenced adherence and how adherence correlated with baseline pulmonary function and pulmonary exacerbations...
April 19, 2017: Respiratory Care
https://www.readbyqxmd.com/read/28422188/resolvin-d1-enhances-the-resolution-of-lung-inflammation-caused-by-long-term-pseudomonas-aeruginosa-infection
#4
M Codagnone, E Cianci, A Lamolinara, V C Mari, A Nespoli, E Isopi, D Mattoscio, M Arita, A Bragonzi, M Iezzi, M Romano, A Recchiuti
Pseudomonas aeruginosa lung infection is a main cause of disability and mortality worldwide. Acute inflammation and its timely resolution are crucial for ensuring bacterial clearance and limiting tissue damage. Here, we investigated protective actions of resolvin (Rv) D1 in lung infection induced by the RP73 clinical strain of P. aeruginosa. RvD1 significantly diminished bacterial growth and neutrophil infiltration during acute pneumonia caused by RP73. Inoculum of RP73, immobilized in agar beads, resulted in persistent lung infection up to 21 days, leading to a non resolving inflammation reminiscent of human pathology...
April 19, 2017: Mucosal Immunology
https://www.readbyqxmd.com/read/28412392/diminished-airway-macrophage-expression-of-the-axl-receptor-tyrosine-kinase-is-associated-with-defective-efferocytosis-in-asthma
#5
Aleksander M Grabiec, Nicholas Denny, John A Doherty, Kaisa E Happonen, Jenny Hankinson, Emma Connolly, Mark E Fife, Toshifumi Fujimori, Naoya Fujino, Anu Goenka, Susan Holden, Gaël Tavernier, Rajesh Shah, Peter C Cook, Andrew S MacDonald, Robert M Niven, Björn Dahlbäck, Stephen J Fowler, Angela Simpson, Tracy Hussell
The apoptotic cell recognition receptor Axl is highly expressed on human airway/alveolar macrophages, its expression is driven by the lung microenvironment and is significantly reduced in asthma, which may explain defects in apoptotic cell clearance.
April 12, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28408202/airway-clearance-techniques-for-primary-ciliary-dyskinesia-is-the-cystic-fibrosis-literature-portable
#6
REVIEW
Lynne Marie Schofield, Alistair Duff, Cathy Brennan
Primary Ciliary Dyskinesia (PCD) is a rare inherited disease with impaired mucociliary clearance. Airway clearance techniques (ACTs) are commonly recommended for patients with PCD to facilitate mucus clearance, despite a lack of evidence in this group. Current physiotherapy practice in PCD is based on evidence extrapolated from the field of Cystic Fibrosis (CF). This paper focuses on the available evidence and outlines challenges in extrapolating evidence between the conditions for best clinical practice.
March 16, 2017: Paediatric Respiratory Reviews
https://www.readbyqxmd.com/read/28405161/mucoactive-and-antioxidant-medicines-for-copd-consensus-of-a-group-of-chinese-pulmonary-physicians
#7
REVIEW
Xixin Yan, Yuanlin Song, Ce Shen, Wenbing Xu, Liangan Chen, Jian Zhang, Huiguo Liu, Mao Huang, Guoxiang Lai, Guishen Qian, Jing Wang, Xianwei Ye, Jinping Zheng, Chunxue Bai
Airway mucus hypersecretion is a frequent symptom associated with acute and chronic airway disease. Inhibition of mucus production or promotion of mucolysis not only relieved symptoms but also improved disease outcomes. There are numerous available mucoactive medicines for prescription, and how to select them properly for different diseases is important for clinical practice. So far, there is no one consensus or guideline reported. A group of Chinese pulmonary physicians worked together to complete this consensus based on literature review, summarized mechanism and usage of each classical mucoactive medicine...
2017: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/28386104/intubation-free-in-vivo-imaging-of-the-tracheal-mucosa-using-two-photon-microscopy
#8
Tibor Z Veres, Tamás Kopcsányi, Marko Tirri, Armin Braun, Masayuki Miyasaka, Ronald N Germain, Sirpa Jalkanen, Marko Salmi
The mucosal layer of conducting airways is the primary tissue exposed to inhaled microorganisms, allergens and pollutants. We developed an in vivo two-photon microscopic approach that allows performing dynamic imaging studies in the mouse trachea, which is a commonly used in vivo model of human small-diameter bronchi. By providing stabilized access to the tracheal mucosa without intubation, our setup uniquely allows dynamic in vivo imaging of mucociliary clearance and steady-state immune cell behavior within the complex airway mucosal tissue...
April 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28383852/-management-of-adult-bronchiectasis
#9
REVIEW
G Tassart, T Pieters, S Gohy
Non-cystic fibrosis bronchiectasis has been the subject of renewed interest over recent years. It is usually part of the evolutionary process of many infectious, autoimmune, genetic, developmental or allergic diseases. Its presentation and prognosis are heterogeneous and it causes significant morbidity and mortality with a real impact on the health care system. Thanks to increasingly available guidelines, it is now possible to define the optimal management that will include various therapeutic objectives : airway clearance, prevention and eradication of bacterial colonization, reduction of airway inflammation and exacerbations and improvement of quality of life...
October 2016: Revue Médicale de Liège
https://www.readbyqxmd.com/read/28378503/il-5-stimulated-eosinophils-adherent-to-periostin-undergo-stereotypic-morphological-changes-and-adam8-dependent-migration
#10
Mats W Johansson, Manav Khanna, Valeriu Bortnov, Douglas S Annis, Christopher L Nguyen, Deane F Mosher
BACKGROUND: IL-5 causes suspended eosinophils to polarize with filamentous (F)-actin and granules at one pole and the nucleus in a specialized uropod, the "nucleopod", which is capped with P-selectin glycoprotein ligand-1 (PSGL-1). IL-5 enhances eosinophil adhesion and migration on periostin, an extracellular matrix protein upregulated in asthma by type 2 immunity mediators. OBJECTIVE: Determine how the polarized morphology evolves to foster migration of IL-5-stimulated eosinophils on a surface coated with periostin...
April 4, 2017: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28373278/flavones-modulate-respiratory-epithelial-innate-immunity-anti-inflammatory-effects-and-activation-of-t2r14
#11
Benjamin M Hariri, Derek B McMahon, Bei Chen, Jenna R Freund, Corrine J Mansfield, Laurel J Doghramji, Nithin D Adappa, James N Palmer, David W Kennedy, Danielle R Reed, Peihua Jiang, Robert J Lee
Chronic rhinosinusitis has a significant impact on patient quality of life, creates billions of dollars of annual healthcare costs, and accounts for ~20% of adult antibiotic prescriptions in the US. Due to the rise of resistant microorganisms, there is a critical need to better understand how to stimulate and/or enhance innate immune responses as a therapeutic modality to treat respiratory infections. We recently identified bitter taste receptors (taste family type 2 receptors, or T2Rs) as important regulators of sinonasal immune responses and potential important therapeutic targets...
April 3, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28361060/bioaerosols-in-the-lungs-of-subjects-with-different-ages-part-2-clearance-modeling
#12
Robert Sturm
BACKGROUND: The present contribution deals with theoretical aspects regarding biogenic particle clearance from various lung structures of probands with different ages (1, 5, 15, 20 y). With reference to part 1 of the study, particles varying in size and shape are subject to a detailed analysis. The main goal of the investigation consists in an increase of our knowledge concerning the clearance behaviour of bioparticles and its dependence upon various physiological and anatomical factors...
March 2017: Annals of Translational Medicine
https://www.readbyqxmd.com/read/28352653/defective-postsecretory-maturation-of-muc5b-mucin-in-cystic-fibrosis-airways
#13
Lubna H Abdullah, Jessica R Evans, T Tiffany Wang, Amina A Ford, Alexander M Makhov, Kristine Nguyen, Raymond D Coakley, Jack D Griffith, C William Davis, Stephen T Ballard, Mehmet Kesimer
In cystic fibrosis (CF), airway mucus becomes thick and viscous, and its clearance from the airways is impaired. The gel-forming mucins undergo an ordered "unpacking/maturation" process after granular release that requires an optimum postsecretory environment, including hydration and pH. We hypothesized that this unpacking process is compromised in the CF lung due to abnormal transepithelial fluid transport that reduces airway surface hydration and alters ionic composition. Using human tracheobronchial epithelial cells derived from non-CF and CF donors and mucus samples from human subjects and domestic pigs, we investigated the process of postsecretory mucin unfolding/maturation, how these processes are defective in CF airways, and the probable mechanism underlying defective unfolding...
March 23, 2017: JCI Insight
https://www.readbyqxmd.com/read/28348774/latent-infection-of-human-bocavirus-accompanied-by-flare-of-chronic-cough-fatigue-and-episodes-of-viral-replication-in-an-immunocompetent-adult-patient-cologne-germany
#14
Wolfram Windisch, Monika Pieper, Inga Ziemele, Jürgen Rockstroh, Michael Brockmann, Oliver Schildgen, Verena Schildgen
INTRODUCTION: The human bocavirus (HBoV) is a parvovirus and is associated with mild to life-threatening acute or persisting respiratory infections, frequently accompanied by further pathogens. So far, there is limited knowledge on the mechanisms of persistence, and no reports on chronic infections or latency have been published so far. CASE PRESENTATION: An immunocompetent male patient suffers from a chronic HBoV1 infection, i.e. viral DNA was detected in both serum and bronchoalveolar lavage (BAL) for >5 months without co-infections and with respiratory symptoms resolved spontaneously while receiving symptomatic treatment with montelukast and corticosteroids...
August 2016: JMM Case Reports
https://www.readbyqxmd.com/read/28346012/lymphangiogenesis-fuel-smoke-or-extinguisher-of-inflammation-s-fire
#15
Gabriella R Abouelkheir, Bradley D Upchurch, Joseph M Rutkowski
Lymphangiogenesis is a recognized hallmark of inflammatory processes in tissues and organs as diverse as the skin, heart, bowel, and airways. In clinical and animal models wherein the signaling processes of lymphangiogenesis are manipulated, most studies demonstrate that an expanded lymphatic vasculature is necessary for the resolution of inflammation. The fundamental roles that lymphatics play in fluid clearance and immune cell trafficking from the periphery make these results seemingly obvious as a mechanism of alleviating locally inflamed environments: the lymphatics are simply providing a drain...
April 2017: Experimental Biology and Medicine
https://www.readbyqxmd.com/read/28345309/a-survey-of-clinicians-regarding-respiratory-physiotherapy-intervention-for-intubated-and-mechanically-ventilated-patients-with-community-acquired-pneumonia-what-is-current-practice-in-australian-icus
#16
Lisa van der Lee, Anne-Marie Hill, Shane Patman
RATIONALE, AIMS, AND OBJECTIVES: Community-acquired pneumonia (CAP) is a common cause for intensive care unit (ICU) admission resulting in high morbidity and mortality. There is a paucity of evidence regarding respiratory physiotherapy for intubated and mechanically ventilated patients with CAP, and anecdotally clinical practice is variable in this cohort. The aims of this study were to identify the degree of variability in physiotherapy practice for intubated adult patients with CAP and to explore ICU physiotherapist perceptions of current practice for this cohort and factors that influence physiotherapy treatment mode, duration, and frequency...
March 27, 2017: Journal of Evaluation in Clinical Practice
https://www.readbyqxmd.com/read/28338488/respiratory-complications-management-and-treatments-for-neuromuscular-disease-in-children
#17
MyMy C Buu
PURPOSE OF REVIEW: To summarize current literature describing the respiratory complications of neuromuscular disease (NMD) and the effect of respiratory interventions and to explore new gene therapies for patients with NMD. RECENT FINDINGS: Measurements of respiratory function focus on vital capacity and maximal inspiratory and expiratory pressure and show decline over time. Management of respiratory complications includes lung volume recruitment, mechanical insufflation-exsufflation, chest physiotherapy and assisted ventilation...
March 23, 2017: Current Opinion in Pediatrics
https://www.readbyqxmd.com/read/28328824/early-use-of-noninvasive-techniques-for-clearing-respiratory-secretions-during-noninvasive-positive-pressure-ventilation-in-patients-with-acute-exacerbation-of-chronic-obstructive-pulmonary-disease-and-hypercapnic-encephalopathy-a-prospective-cohort-study
#18
Jinrong Wang, Zhaobo Cui, Shuhong Liu, Xiuling Gao, Pan Gao, Yi Shi, Shufen Guo, Peipei Li
Noninvasive positive-pressure ventilation (NPPV) might be superior to conventional mechanical ventilation (CMV) in patients with acute exacerbations of chronic obstructive pulmonary disease (AECOPDs). Inefficient clearance of respiratory secretions provokes NPPV failure in patients with hypercapnic encephalopathy (HE). This study compared CMV and NPPV combined with a noninvasive strategy for clearing secretions in HE and AECOPD patients.The present study is a prospective cohort study of AECOPD and HE patients enrolled between October 2013 and August 2015 in a critical care unit of a major university teaching hospital in China...
March 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28327162/biological-effects-of-carbon-black-nanoparticles-are-changed-by-surface-coating-with-polycyclic-aromatic-hydrocarbons
#19
Karina Lindner, Michael Ströbele, Sandra Schlick, Sina Webering, André Jenckel, Johannes Kopf, Olga Danov, Katherina Sewald, Christian Buj, Otto Creutzenberg, Thomas Tillmann, Gerhard Pohlmann, Heinrich Ernst, Christina Ziemann, Gereon Hüttmann, Holger Heine, Henning Bockhorn, Tanja Hansen, Peter König, Heinz Fehrenbach
BACKGROUND: Carbon black nanoparticles (CBNP) are mainly composed of carbon, with a small amount of other elements (including hydrogen and oxygen). The toxicity of CBNP has been attributed to their large surface area, and through adsorbing intrinsically toxic substances, such as polycyclic aromatic hydrocarbons (PAH). It is not clear whether a PAH surface coating changes the toxicological properties of CBNP by influencing their physicochemical properties, through the specific toxicity of the surface-bound PAH, or by a combination of both...
March 21, 2017: Particle and Fibre Toxicology
https://www.readbyqxmd.com/read/28324898/breathing-and-swallowing-the-next-frontier
#20
Roxann Diez Gross, Marybeth Trapani-Hanasewych
The anatomical overlap of the pathways for air passage and nutrition necessitate precise coordination between the two vital functions. Neuroanatomic structures in the brainstem for sucking, breathing, and swallowing are also in close proximity and must swiftly coordinate the processes. In a healthy neonate, the oropharyngeal experience and stimulation of early feeding enables respiratory control during suckling to develop. Despite wide variability among the methods used to investigate breathing and swallowing coordination in infancy, a consistent finding of postswallow exhalation has been reported...
April 2017: Seminars in Speech and Language
keyword
keyword
46245
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"