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Reactive airway disease

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https://www.readbyqxmd.com/read/29755754/-chlamydia-pneumoniae-induced-tumour-necrosis-factor-alpha-responses-are-lower-in-children-with-asthma-compared-with-non-asthma
#1
Tamar Anne Smith-Norowitz, Kobkul Chotikanatis, Diana Weaver, Jared Ditkowsky, Yitzchok Meir Norowitz, Margaret R Hammerschlag, Rauno Joks, Stephan Kohlhoff
Introduction: Chlamydia pneumoniae respiratory tract infection has been implicated in the pathogenesis of reactive airway disease and asthma. Innate cytokine responses that are protective of infection with intracellular pathogens may be impaired in patients with asthma. Tumour necrosis factor alpha (TNF-α) is a cytokine related to functions of monocytes and may inhibit C. pneumoniae infection. We investigated TNF-α responses in C. pneumoniae -infected peripheral blood mononuclear cells (PBMCs) in patients with asthma and non-asthma, and whether ciprofloxacin, azithromycin or doxycycline affects TNF-α responses...
2018: BMJ Open Respiratory Research
https://www.readbyqxmd.com/read/29754456/pentraxin-levels-in-noneosinophilic-versus-eosinophilic-asthma
#2
Pengfei Gao, Kun Tang, Meijia Wang, Qun Yang, Yongjian Xu, Jianmiao Wang, Jianping Zhao, Jungang Xie
BACKGROUND: Innate immunity has been thought to be involved in asthma pathogenesis. Pentraxins, acting as soluble pattern recognition molecules, play an important role in humoral innate immunity. Asthma is a heterogeneous inflammatory disease of airways and can be classified as eosinophilic or noneosinophilic asthma. OBJECTIVE: To investigate whether pentraxin levels differ in subjects with eosinophilic versus noneosinophilic asthma. Furthermore, to access the predictive performance of pentraxin levels for discriminating asthma inflammatory phenotypes...
May 13, 2018: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/29747661/modelling-the-asthma-phenotype-impact-of-cigarette-smoke-exposure
#3
Maria G Belvisi, Katie Baker, Nicole Malloy, Kristof Raemdonck, Bilel Dekkak, Michael Pieper, Anthony T Nials, Mark A Birrell
BACKGROUND: Asthmatics that are exposed to inhaled pollutants such as cigarette smoke (CS) have increased symptom severity. Approximately 25% of adult asthmatics are thought to be active smokers and many sufferers, especially in the third world, are exposed to high levels of inhaled pollutants. The mechanism by which CS or other airborne pollutants alter the disease phenotype and the effectiveness of treatment in asthma is not known. The aim of this study was to determine the impact of CS exposure on the phenotype and treatment sensitivity of rodent models of allergic asthma...
May 10, 2018: Respiratory Research
https://www.readbyqxmd.com/read/29740449/protective-role-of-nuclear-factor-erythroid-2-related-factor-2-against-respiratory-syncytial-virus-and-human-metapneumovirus-infections
#4
Teodora Ivanciuc, Elena Sbrana, Antonella Casola, Roberto P Garofalo
The pathogenesis of respiratory syncytial virus (RSV) infections is characterized by lower airway obstruction driven at great extent by the exuberant production of inflammatory cytokines. We have previously shown that RSV infection in vitro and in vivo results in production of reactive oxygen species along with reduction in the expression of antioxidant enzymes (AOEs), which are involved in maintaining the cellular oxidant-antioxidant balance. These events were associated with the concomitant reduction in nuclear factor erythroid 2-related factor 2 (Nrf2), a key transcription factor that controls AOE expression...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29723943/-aspirin-exacerbated-respiratory-disease-case-based-review
#5
Karen Estefanía Hernández-Moreno, Ricardo Cardona
Aspirin-exacerbated respiratory disease comprises a series of signs and symptoms mainly involving the upper and lower posterior airway after the consumption of cyclooxygenase enzyme inhibitors. Adverse reactions that occur are not considered to be an allergy and are common to all non-steroidal anti-inflammatory drugs, and cross-reactivity between these agents is therefore common. The description of 3 clinical cases serves to review key aspects of this condition, such as epidemiology, pathophysiology, clinical manifestations, diagnosis and management...
January 2018: Revista Alergia Mexico: Organo Oficial de la Sociedad Mexicana de Alergia e Inmunología, A.C
https://www.readbyqxmd.com/read/29720722/development-of-comorbidities-in-men-with-prostate-cancer-treated-with-androgen-deprivation-therapy-an-australian-population-based-cohort-study
#6
Huah Shin Ng, Bogda Koczwara, David Roder, Agnes Vitry
BACKGROUND: The increasing use of androgen deprivation therapy has prompted further evaluation of its potential adverse effects as the treatment may exacerbate or increase the risk of developing new comorbid diseases. This study aims to assess the patterns of comorbidities among Australian men with prostate cancer treated with androgen deprivation therapy. METHODS: Pharmaceutical Benefits Scheme (PBS) 10% data between 1 January 2003 and 31 December 2014 was utilised in this retrospective cohort study...
May 2, 2018: Prostate Cancer and Prostatic Diseases
https://www.readbyqxmd.com/read/29707592/varicella-pneumonia-case-report-and-review-of-a-potentially-lethal-complication-of-a-common-disease
#7
John T Denny, Zoe M Rocke, Valerie A McRae, Julia E Denny, Christine Hunter Fratzola, Sajjad Ibrar, Joyce Bonitz, James T Tse, Shaul Cohen, Scott J Mellender, Geza K Kiss
Varicella zoster virus causes varicella (chickenpox). It can be reactivated endogenously many years later to cause herpes zoster (shingles). Although varicella is usually a benign disease in healthy children, it resulted in over 11 000 hospitalizations and over 100 deaths every year, in all ages, in the United States. Morbidity was considerably worse in older teenagers and adults. Between 5% and 15% of cases of adult chickenpox will produce some form of pulmonary illness. Progression to pneumonia risk factors include pregnancy, age, smoking, chronic obstructive pulmonary disease, and immunosuppression...
January 2018: Journal of Investigative Medicine High Impact Case Reports
https://www.readbyqxmd.com/read/29704811/involvement-of-ion-channels-in-allergy
#8
REVIEW
Lucette Pelletier, Magali Savignac
Allergic asthma is a complex disease, often characterized by an inappropriate Th2 response to normally harmless allergens. Epithelial cells damaged or activated by the allergen produce IL-33, TSLP and IL-25, activating ILC2 and dendritic cells. The latter migrate into lymph nodes where they induce Th2-cell commitment. Th2 and other type 2 innate inflammatory cells trigger inflammation and airway hyper-reactivity. The toolbox consisting of the ion channels varies from one cellular type to another and depends on its activation state, offering the possibility to design novel drugs in the field of allergy...
April 25, 2018: Current Opinion in Immunology
https://www.readbyqxmd.com/read/29684106/urine-antigen-detection-as-an-aid-to-diagnose-invasive-aspergillosis
#9
Kieren A Marr, Kausik Datta, Seema Mehta, Darin B Ostrander, Michelle Rock, Jesse Francis, Marta Feldmesser
Background: Establishing rapid diagnoses of invasive aspergillosis (IA) is priority, given poor outcomes of late therapy. Non-culture based tests that detect galactomannan and β-D glucan are available, but are technically cumbersome and rely on invasive sampling (blood or bronchoalveolar lavage). Methods: We optimized a lateral flow dipstick assay using the galactofuranose -specific monoclonal antibody (mAb476), which was previously shown to recognize urine antigens after Aspergillus fumigatus pulmonary infection in an`imals...
April 19, 2018: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/29659956/polyphenols-have-no-impact-on-endothelial-function-in-patients-with-obstructive-sleep-apnea-a-randomized-controlled-trial
#10
Wojciech Trzepizur, Vanessa Bironneau, Sylvain Recoquillon, Pascaline Priou, Nicole Meslier, Jean-François Hamel, Samir Henni, Astrid Darsonval, Khaled Messaoudi, Maria Carmen Martínez, Ramaroson Andriantsitohaina, Frédéric Gagnadoux
Background: Endothelial dysfunction, a pathophysiologic determinant of atherogenesis, has been found to occur in obstructive sleep apnea syndrome (OSA) and is improved by continuous positive airway pressure (CPAP). However, the efficacy of CPAP therapy is limited by variable adherence. Alternative treatment strategies are needed. The impact of polyphenols on endothelial function has never been evaluated in OSA. Objective: We evaluated the impact of 1-mo supplementation with grape juice polyphenols (GJPs) on the reactive hyperemia index (RHI), a validated measure of endothelial function in patients with severe OSA...
April 1, 2018: Journal of Nutrition
https://www.readbyqxmd.com/read/29658455/-efficacy-of-early-treatment-via-fiber-bronchoscope-in-children-with-mycoplasma-pneumoniae-pneumonia-complicated-by-airway-mucus-obstruction
#11
Li-Jie Cao, Jian-Hua Liu, Jin-Feng Shuai, Bo Niu, Su-Kun Lu, Kun-Ling Huang
OBJECTIVE: To study the efficacy of early treatment via fiber bronchoscope in children with Mycoplasma pneumoniae pneumonia (MPP) complicated by airway mucus obstruction. METHODS: According to the time from admission to the treatment via fiber bronchoscope, the children with MPP who were found to have airway mucus obstruction under a fiber bronchoscope were randomly divided into early intervention group (≤3 days; n=40) and late intervention group (>3 days; n=56)...
April 2018: Zhongguo Dang Dai Er Ke za Zhi, Chinese Journal of Contemporary Pediatrics
https://www.readbyqxmd.com/read/29630123/il-33-induced-inflammation-exacerbated-the-development-of-chronic-obstructive-pulmonary-disease-through-oxidative-stress
#12
S-C Zou, J Jiang, J Song
OBJECTIVE: We aimed at exploring the role of IL-33 in mouse chronic obstructive pulmonary disease and its potential molecular mechanism. MATERIALS AND METHODS: The chronic obstructive pulmonary disease (COPD) mice model was established by cigarette smoking (CS). COPD mice were randomly assigned into PBS group and IL-33 antibody group. The peripheral blood and lung tissues of mice from two groups were collected for the following experiments. Pathological changes of the lung tissues in both groups were analyzed by hematoxylin and eosin (HE) staining...
March 2018: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29621753/necroptosis-contributes-to-urban-particulate-matter-induced-airway-epithelial-injury
#13
Feng Xu, Man Luo, Lulu He, Yuan Cao, Wen Li, Songmin Ying, Zhihua Chen, Huahao Shen
BACKGROUND/AIMS: Necroptosis, a form of programmed necrosis, is involved in the pathologic process of several kinds of pulmonary diseases. However, the role of necroptosis in particulate matter (PM)-induced pulmonary injury remains unclear. The objective of this study is to investigate the involvement of necroptosis in the pathogenesis of PM-induced toxic effects in pulmonary inflammation and mucus hyperproduction, both in vitro and in vivo. METHODS: PM was administered into human bronchial epithelial (HBE) cells or mouse airways, and the inflammatory response and mucus production were assessed...
March 29, 2018: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29573703/n-acetyl-cysteine-reverts-the-proinflammatory-state-induced-by-cigarette-smoke-extract-in-lung-calu-3-cells
#14
Ángel G Valdivieso, Andrea V Dugour, Verónica Sotomayor, Mariángeles Clauzure, Juan M Figueroa, Tomás A Santa-Coloma
Chronic obstructive pulmonary disease (COPD) and cystic fibrosis (CF) are lethal pulmonary diseases. Cigarette consumption is the main cause for development of COPD, while CF is produced by mutations in the CFTR gene. Although these diseases have a different etiology, both share a CFTR activity impairment and proinflammatory state even under sterile conditions. The aim of this work was to study the extent of the protective effect of the antioxidant N-acetylcysteine (NAC) over the proinflammatory state (IL-6 and IL-8), oxidative stress (reactive oxygen species, ROS), and CFTR levels, caused by Cigarette Smoke Extract (CSE) in Calu-3 airway epithelial cells...
March 14, 2018: Redox Biology
https://www.readbyqxmd.com/read/29527854/infants-born-with-esophageal-atresia-with-or-without-tracheo-esophageal-fistula-short-and-long-term-outcomes
#15
Leah Leibovitch, Iris Zohar, Ayala Maayan-Mazger, Ram Mazkereth, Tzipora Strauss, Ron Bilik
BACKGROUND: The estimated incidence of esophageal atresia (EA) with or without tracheo-esophageal fistula (TEF) is 1:3500 live births. During childhood these patients have various co-morbidities, but the overall quality of life among adults is similar to that of the general population. OBJECTIVES: To evaluate short- and long-term co-morbidities and quality of life among infants born with EA ± TEF at a large single medical center. METHODS: Medical records of 65 children born over a 21 year period were reviewed for short- and long-term medical data...
March 2018: Israel Medical Association Journal: IMAJ
https://www.readbyqxmd.com/read/29501313/diagnosis-and-treatment-of-paradoxical-vocal-fold-motion-in-infants
#16
Ashley P O'Connell Ferster, Tom Shokri, Michele Carr
IMPORTANCE: Paradoxical vocal fold motion (PVFM) is a disorder often misdiagnosed in children presenting with shortness of breath and stridor. In infants, little is known about the clinical course and best approach for treatment of PVFM. This retrospective study assesses the approach to treatment and outcomes for infants with PVFM. OBJECTIVE: To investigate the clinical course of paradoxical vocal fold motion (PVFM) in infants. DESIGN: Retrospective review...
April 2018: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/29467201/small-airways-dysfunction-the-link-between-allergic-rhinitis-and-allergic-asthma
#17
Amaryllis Haccuria, Alain Van Muylem, Andrei Malinovschi, Vi Doan, Alain Michils
Abnormal airway reactivity and overproduction of nitric oxide (NO) occurring in small airways have been found in asthma. If the "one airway, one disease" concept is consistent, such dysfunctions should also be detected in the peripheral airways of patients suffering from allergic rhinitis.We investigated whether peripheral airway reactivity and NO overproduction could be documented in distal airways in patients with allergic rhinitis. Exhaled NO fraction ( F eNO ) and the slope (S) of phase III of the single-breath washout test (SBWT) of helium (He) and sulfur hexafluoride (SF6 ) were measured in 31 patients with allergic asthma, 23 allergic rhinitis patients and 24 controls, before and after sputum induction...
February 2018: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
https://www.readbyqxmd.com/read/29466083/laparoscopic-nissen-fundoplication-an-excellent-treatment-of-gerd-related-respiratory-symptoms-in-children-results-of-a-multicentric-study
#18
Ciro Esposito, Amulya Saxena, Sabine Irtan, Holger Till, Maria Escolino
INTRODUCTION: Respiratory manifestations of gastroesophageal reflux disease (GERD), particularly chronic cough, are being recognized with increased frequency in children. This survey aimed to investigate the efficacy of laparoscopic Nissen fundoplication for treatment of GERD-related respiratory symptoms not responsive to medical therapy in neurological normal children. MATERIALS AND METHODS: We collected data of children with GERD-related respiratory complaints not responsive to medical therapy who underwent laparoscopic Nissen fundoplication in four European centers of Pediatric Surgery over a 10-year period...
February 21, 2018: Journal of Laparoendoscopic & Advanced Surgical Techniques. Part A
https://www.readbyqxmd.com/read/29448087/assessment-of-mitochondrial-function-following-short-and-long-term-exposure-of-human-bronchial-epithelial-cells-to-total-particulate-matter-from-a-candidate-modified-risk-tobacco-product-and-reference-cigarettes
#19
Dominika Malinska, Jędrzej Szymański, Paulina Patalas-Krawczyk, Bernadeta Michalska, Aleksandra Wojtala, Monika Prill, Małgorzata Partyka, Karolina Drabik, Jarosław Walczak, Alain Sewer, Stephanie Johne, Karsta Luettich, Manuel C Peitsch, Julia Hoeng, Jerzy Duszyński, Joanna Szczepanowska, Marco van der Toorn, Mariusz R Wieckowski
Mitochondrial dysfunction caused by cigarette smoke is involved in the oxidative stress-induced pathology of airway diseases. Reducing the levels of harmful and potentially harmful constituents by heating rather than combusting tobacco may reduce mitochondrial changes that contribute to oxidative stress and cell damage. We evaluated mitochondrial function and oxidative stress in human bronchial epithelial cells (BEAS 2B) following 1- and 12-week exposures to total particulate matter (TPM) from the aerosol of a candidate modified-risk tobacco product, the Tobacco Heating System 2...
May 2018: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/29446321/pulmonary-il-1%C3%AE-expression-in-early-life-causes-permanent-changes-in-lung-structure-and-function-in-adulthood
#20
Anna Hogmalm, Maija Bry, Kristina Bry
Chorioamnionitis, mechanical ventilation, oxygen therapy, and postnatal infection promote inflammation in the newborn lung. The long-term consequences of pulmonary inflammation during infancy have not been well characterized. The aim of this study was to examine the impact of inflammation during the late saccular to alveolar stages of lung development on lung structure and function in adulthood. To induce IL-1β expression in the pulmonary epithelium of mice with a tetracycline-inducible human IL-1β transgene, doxycycline was administered via intraperitoneal injections to bitransgenic pups and their littermate controls on postnatal days (PN) 0, 0...
February 15, 2018: American Journal of Physiology. Lung Cellular and Molecular Physiology
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