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https://www.readbyqxmd.com/read/29683998/diagnosis-pathophysiology-and-experimental-models-of-chronic-lung-allograft-rejection
#1
Jason M Gauthier, Daniel Ruiz-Pérez, Wenjun Li, Ramsey R Hachem, Varun Puri, Andrew E Gelman, Daniel Kreisel
Chronic rejection is the Achilles' heel of modern lung transplantation, characterized by a slow, progressive decline in allograft function. Clinically, this manifests as obstructive disease, restrictive disease, or a mixture of the 2 depending on the underlying pathology. The 2 major phenotypes of chronic rejection include bronchiolitis obliterans syndrome and restrictive allograft syndrome. The last decade of research has revealed that each of these phenotypes has a unique underlying pathophysiology which may require a distinct treatment regimen for optimal control...
April 21, 2018: Transplantation
https://www.readbyqxmd.com/read/29683731/bronchiolitis-obliterans-murine-model-induced-by-nitric-acid-aerosol-inhalation-an-economical-and-reproducible-model
#2
Jianing Yin, Xiaobo Ma, Fei Huang, Yucong Ma, Yanan Li
PURPOSE: Bronchiolitis obliterans (BO) is a highly debilitative and fatal syndrome associated with a series of severe lower airway disorders. The pathogenesis of BO is complicated and not entirely understood. An appropriate animal model of BO may aid research into its pathogenesis. Here, we establish a mouse model of BO to provide insight into this disease. MATERIALS AND METHODS: 6-8 week old BABL/c mice were exposed to 5% nitric acid (NA) aerosol through a nebulizer for 3 hours, and controls were exposed to distilled water instead...
April 23, 2018: Experimental Lung Research
https://www.readbyqxmd.com/read/29683419/haemagglutinin-neuraminidase-from-hpiv3-mediates-human-nk-regulation-of-t-cell-proliferation-via-nkp44-and-nkp46
#3
Samantha McQuaid, Sinead Loughran, Patrick Power, Paula Maguire, Dermot Walls, Maria Grazia Cusi, Claes Orvell, Patricia Johnson
HPIV3 is a respiratory virus causing airway diseases, including pneumonia, croup, and bronchiolitis, during infancy and childhood. Currently there is no effective vaccine or anti-viral therapy for this virus. Studies have suggested that poor T cell proliferation following HPIV3 infection is responsible for impaired immunological memory associated with this virus. We have previously demonstrated that NK cells mediate regulation of T cell proliferation during HPIV3 infection. Here we add to these studies by demonstrating that the regulation of T cell proliferation during HPIV3 infection is mediated via NK receptors NKp44 and NKp46 and involves the surface glycoprotein haemagglutinin-neuraminidase but not the fusion protein of the virus...
April 23, 2018: Journal of General Virology
https://www.readbyqxmd.com/read/29680409/-usefulness-of-early-lung-ultrasound-in-acute-mild-moderate-acute-bronchiolitis-a-pilot-study
#4
Elia Zoido Garrote, Cristina García Aparicio, Constanza Camila Torrez Villarroel, Antonio Pedro Vega García, Manoel Muñiz Fontán, Ignacio Oulego Erroz
OBJECTIVE: To determine the correlation between the findings seen in early lung ultrasound with the clinical severity scales, and its association with the subsequent progression of the mild-moderate acute bronchiolitis (AB). PATIENTS AND METHODS: An observational prospective study conducted on infants with mild-moderate BA, using lung ultrasound in the first 24hours of hospital care. The lung involvement was graded (range 0-50 points) based on an ultrasound score (ScECO) and 2routinely used clinical scales: the modified Wood Downes Ferres (WDFM), and the Hospital Sant Joan de Deu (HSJD)...
April 18, 2018: Anales de Pediatría: Publicación Oficial de la Asociación Española de Pediatría (A.E.P.)
https://www.readbyqxmd.com/read/29679771/extracorporeal-photopheresis-improves-survival-in-hematopoietic-cell-transplant-patients-with-bronchiolitis-obliterans-syndrome-without-significantly-impacting-measured-pulmonary-functions
#5
Mehrdad Hefazi, Kimberly J Langer, Nandita Khera, Jill Adamski, Vivek Roy, Jeffrey L Winters, Dennis A Gastineau, Eapen K Jacob, Justin D Kreuter, Manish J Gandhi, William J Hogan, Mark R Litzow, Shahrukh K Hashmi, Hemang Yadav, Vivek N Iyer, J P Scott, Mark E Wylam, Rodrigo Cartin-Ceba, Mrinal M Patnaik
We carried out the first matched retrospective cohort study aimed at studying the safety and efficacy of extracorporeal photopheresis (ECP) for bronchiolitis obliterans syndrome (BOS) following allogeneic hematopoietic cell transplantation (HCT). Medical records of 1325 consecutive adult patients who underwent HCT between 2005 and 2015 were reviewed. Seventy-four patients (median age, 51 years) with a diagnosis of BOS were included in the study. After propensity-score matching for BOS severity, 26 patients who underwent ≥3 months of ECP were matched to 26 non-ECP-treated patients, who were assigned an index date corresponding to the ECP start date for their matched pairs...
April 18, 2018: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/29679722/pulmonary-lymphatic-vessel-morphology-a-review
#6
REVIEW
E Weber, F Sozio, A Borghini, P Sestini, E Renzoni
Our understanding of lymphatic vessels has been advanced by the recent identification of relatively specific lymphatic endothelium markers, including Prox-1, VEGFR3, podoplanin and LYVE-1. The use of lymphatic markers has led to the observation that, contrary to previous assumptions, human lymphatic vessels extend deep inside the pulmonary lobule, either in association with bronchioles, intralobular arterioles or small pulmonary veins. Pulmonary lymphatic vessels may thus be classified into pleural, interlobular (in interlobular septa) and intralobular...
April 18, 2018: Annals of Anatomy, Anatomischer Anzeiger: Official Organ of the Anatomische Gesellschaft
https://www.readbyqxmd.com/read/29678995/intermittent-versus-continuous-oxygen-saturation-monitoring-for-infants-hospitalised-with-bronchiolitis-study-protocol-for-a-pragmatic-randomised-controlled-trial
#7
Sanjay Mahant, Gita Wahi, Lucy Giglia, Catherine Pound, Ronik Kanani, Ann Bayliss, Madan Roy, Mahmoud Sakran, Natascha Kozlowski, Karen Breen-Reid, Mollie Lavigne, Laila Premji, Myla E Moretti, Andrew R Willan, Suzanne Schuh, Patricia C Parkin
INTRODUCTION: Bronchiolitis is the most common reason for hospitalisation in infants in developed countries. The main focus of hospital care is on supportive care, such as monitoring for hypoxia and supplemental oxygen administration, as active therapies lack effectiveness. Pulse oximetry is used to monitor hypoxia in hospitalised infants and is used either intermittently or continuously. Observational studies have suggested that continuous pulse oximetry use leads to a longer length of hospital stay in stable infants...
April 20, 2018: BMJ Open
https://www.readbyqxmd.com/read/29678751/glucagon-like-peptide-1-receptor-signaling-attenuates-rsv-induced-type-2-responses-and-immunopathology
#8
Melissa H Bloodworth, Mark Rusznak, Connor C Pfister, Jian Zhang, Lisa Bastarache, Sandra Alvarez Calvillo, James D Chappell, Kelli L Boyd, Shinji Toki, Dawn C Newcomb, Matthew T Stier, Weisong Zhou, Kasia Goleniewska, Martin L Moore, Tina V Hartert, Kevin D Niswender, R Stokes Peebles
GLP-1R signaling, an emerging anti-inflammatory therapeutic target, attenuated type 2-associated immunopathology in mice infected with a strain of RSV that was isolated from a hospitalized infant with severe lower respiratory tract infection and bronchiolitis.
April 17, 2018: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/29677180/do-inhaled-corticosteroids-have-a-role-for-bronchiolitis
#9
Gonzalo Alarcón-Andrade, Lorena Cifuentes
INTRODUCTION: Bronchiolitis consists of an acute small airways inflammation secondary to a viral infection and is a frequent pathology among children under 2 years. The use of inhaled corticosteroids during bronchiolitis has been proposed to reduce recurrent wheeze or asthma, however there is controversy about it. METHODS: To answer this question we used Epistemonikos, the largest database of systematic reviews in health, which is maintained by screening multiple information sources, including MEDLINE, EMBASE, Cochrane, among others...
April 17, 2018: Medwave
https://www.readbyqxmd.com/read/29676632/deployment-related-lung-disease-is-associated-with-abnormal-ventilation-on-cardiopulmonary-exercise-testing-and-with-increased-lung-clearance-index-score
#10
Silpa D Krefft, Eva B Gottschall, Jennifer J Smith, Matthew Strand, Cecile Rose
RATIONALE: An unknown number of post-9/11 military deployers to Iraq and Afghanistan have returned with respiratory symptoms and may be at risk for deployment-related distal lung disease, detected only on surgical lung biopsy. We hypothesized that cardiopulmonary exercise testing and lung clearance index scores would differ significantly between deployers with and without biopsy-proven deployment-related distal lung disease. OBJECTIVES: To assess if there are differences in cardiopulmonary exercise testing and lung clearance index scores between deployers with and without biopsy-proven deployment-related distal lung disease...
April 2018: Annals of the American Thoracic Society
https://www.readbyqxmd.com/read/29670919/dysregulated-functions-of-lung-macrophage-populations-in-copd
#11
REVIEW
Theodore S Kapellos, Kevin Bassler, Anna C Aschenbrenner, Wataru Fujii, Joachim L Schultze
Chronic obstructive pulmonary disease (COPD) is a diverse respiratory disease characterised by bronchiolitis, small airway obstruction, and emphysema. Innate immune cells play a pivotal role in the disease's progression, and in particular, lung macrophages exploit their prevalence and strategic localisation to orchestrate immune responses. To date, alveolar and interstitial resident macrophages as well as blood monocytes have been described in the lungs of patients with COPD contributing to disease pathology by changes in their functional repertoire...
2018: Journal of Immunology Research
https://www.readbyqxmd.com/read/29666383/effect-of-antibiotic-use-for-acute-bronchiolitis-on-new-onset-asthma-in-children
#12
I-Lun Chen, Hsin-Chun Huang, Yu-Han Chang, Hsin-Yi Huang, Wei-Ju Yeh, Ting-Yi Wu, Jau-Ling Suen, San-Nan Yang, Chih-Hsing Hung
Early-life use of antibiotics is associated with asthma. We examined the effect of antibiotic use for early-life bronchiolitis on the development of new-onset asthma in children from Taiwan between 2005 and 2010. Data were from the National Health Insurance Research Database 2010, and diseases were coded using the International Classification of Disease (ICD). We classified the patients, all of whom had bronchiolitis, as having asthma or not having asthma. Asthma was diagnosed using ICD criteria and by use of an inhaled bronchodilator and/or corticosteroid twice in one year...
April 17, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29665312/interleukin-13-associates-with-life-threatening-rhinovirus-infections-in-infants-and-young-children
#13
Mauricio T Caballero, Diego R Hijano, Patricio L Acosta, Cecilia G Mateu, Débora N Marcone, Jodell E Linder, Laura B Talarico, John M Elder, Marcela Echavarria, Eva Kathryn Miller, Fernando P Polack
OBJECTIVE: Delineate risk factors associated with severe hypoxemia (O2 sat ≤87%) in infants and children younger than 2 years hospitalized with single pathogen HRV infection. STUDY DESIGN: Prospective study in a yearly catchment population of 56 560 children <2 years old between 2011 and 2013 in Argentina. All children with respiratory signs and O2 sat <93% on admission were included. HRV infections were identified by reverse transcriptase-polymerase chain reaction...
April 17, 2018: Pediatric Pulmonology
https://www.readbyqxmd.com/read/29662305/parental-preference-and-perspectives-on-continuous-pulse-oximetry-in-infants-and-children-with-bronchiolitis
#14
Mohamed A Hendaus, Suzan Nassar, Bassil A Leghrouz, Ahmed H Alhammadi, Mohammed Alamri
Objective: The purpose of the study was to investigate parental preference of continuous pulse oximetry in infants and children with bronchiolitis. Materials and methods: A cross-sectional prospective study was conducted at Hamad Medical Corporation in Qatar. Parents of infants and children <24 months old and hospitalized with bronchiolitis were offered an interview survey. Results: A total of 132 questionnaires were completed (response rate 100%)...
2018: Patient Preference and Adherence
https://www.readbyqxmd.com/read/29650555/noninfectious-lung-complications-after-allogeneic-haematopoietic-stem-cell-transplantation
#15
Anne Bergeron, Sylvie Chevret, Régis Peffault de Latour, Karine Chagnon, Constance de Margerie-Mellon, Frédéric Rivière, Marie Robin, Jean Mani, Gwenael Lorillon, Gérard Socié, Abdellatif Tazi
Epidemiological data on late noninfectious pulmonary complications (LONIPCs) following allogeneic haematopoietic stem cell transplantation (HSCT) are derived exclusively from retrospective studies and conflicting. We aimed to evaluate prospectively their incidence, risk factors and outcomes.All consecutive patients scheduled to receive allogeneic HSCT between 2006 and 2008, at the university-teaching Saint Louis Hospital (Paris, France) were screened for inclusion. Eligible patients were those surviving at day 100...
April 12, 2018: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
https://www.readbyqxmd.com/read/29650006/beclomethasone-dipropionate-and-formoterol-fumarate-synergistically-interact-in-hyperresponsive-medium-bronchi-and-small-airways
#16
Luigino Calzetta, Maria Gabriella Matera, Francesco Facciolo, Mario Cazzola, Paola Rogliani
BACKGROUND: Corticosteroids increase the expression of β2 -adrenoceptors (β2 -ARs) and protect them against down-regulation. Conversely, β2 -AR agonists improve the anti-inflammatory action of corticosteroids. Nevertheless, it is still uncertain whether adding a long-acting β2 -AR agonist (LABA) to an inhaled corticosteroid (ICS) results in an additive effect, or there is true synergy. Therefore, the aim of this study was to pharmacologically characterize the interaction between the ICS beclomethasone diproprionate (BDP) and the LABA formoterol fumarate (FF) in a validated human ex vivo model of bronchial asthma...
April 12, 2018: Respiratory Research
https://www.readbyqxmd.com/read/29627312/-does-heliox-administered-by-low-flow-nasal-cannula-improve-respiratory-distress-in-infants-with-respiratory-syncytial-virus-acute-bronchiolitis-a-randomized-controlled-trial
#17
Wael Seliem, Amira M Sultan
OBJECTIVES: The aim of our study is to evaluate whether the use of heliox (79:21) delivered through a low flow nasal cannula would improve respiratory distress in infants with acute bronchiolitis caused by respiratory syncytial virus. METHODS: We have conducted a prospective randomized controlled study. All patients fulfilled inclusion criteria were randomized to either heliox (79:21) or air via NC at 2 L/min for a continuous 24hours. Measurements were taken at baseline, after 2hours and at the end of the 24hours...
April 4, 2018: Anales de Pediatría: Publicación Oficial de la Asociación Española de Pediatría (A.E.P.)
https://www.readbyqxmd.com/read/29624575/montelukast-for-bronchiolitis-obliterans-syndrome-after-lung-transplantation-a-randomized-controlled-trial
#18
David Ruttens, Stijn E Verleden, Heleen Demeyer, Dirk E Van Raemdonck, Jonas Yserbyt, Lieven J Dupont, Bart M Vanaudenaerde, Robin Vos, Geert M Verleden
Bronchiolitis obliterans syndrome (BOS) remains the major problem which precludes long-term survival after lung transplantation. Previously, an open label pilot study from our group demonstrated a possible beneficial effect of montelukast in progressive BOS patients with low airway neutrophilia (<15%), and already on azithromycin treatment, in whom the further decline in pulmonary function was attenuated. This was, however, a non-randomized and non-placebo controlled trial. The study design is a single center, prospective, interventional, randomized, double blind, placebo-controlled trial, with a two arm parallel group design and an allocation ratio of 1:1...
2018: PloS One
https://www.readbyqxmd.com/read/29622322/bronchiolitis-from-practice-guideline-to-clinical-practice
#19
REVIEW
Maybelle Kou, Vivian Hwang, Nadira Ramkellawan
The American Academy of Pediatrics' clinical practice guideline in bronchiolitis was last updated in 2014 with recommendations to improve care for pediatric patients with bronchiolitis. As most treatments of bronchiolitis are supportive, the guideline minimizes the breadth of treatments previously used and cautions the use of tests and therapies that have a limited evidence base. Emergency physicians must be familiar with the guidelines in order to apply best practices appropriately.
May 2018: Emergency Medicine Clinics of North America
https://www.readbyqxmd.com/read/29620080/neuromyelitis-optica-spectrum-disorder-in-the-elderly-associated-with-bronchiolitis-obliterans-organizing-pneumonia
#20
Aintzine Ruisanchez Nieva, Jose Luis Sanchez Menoyo, Ines Escalza Cortina, Nerea Foncea Beti, Marian Gomez Beldarrain, Juan Carlos Garcia-Monco
No abstract text is available yet for this article.
October 2017: Neurology. Clinical Practice
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