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https://www.readbyqxmd.com/read/28428890/asthma-in-the-elderly-a-double-blind-placebo-controlled-study-of-the-effect-of-montelukast
#1
Michele Columbo
BACKGROUND: Little is known about asthma in the elderly as most studies of this condition have not included this patient group. It is unclear whether leukotriene antagonists benefit older asthmatics. We studied the effect of adding montelukast to the asthma treatment of elderly subjects. METHODS: Twenty-five subjects 65 years old and older with asthma were evaluated at week 0, 1, 5, 9, 13, and 17. Each subject received montelukast 10 mg and placebo each for 8 weeks in a cross-over design...
2017: Asthma research and practice
https://www.readbyqxmd.com/read/28427547/qualitative-evaluation-of-the-st-george-s-respiratory-questionnaire-in-patients-with-severe-asthma
#2
Linda M Nelsen, Miriam Kimel, Lindsey T Murray, Hector Ortega, Sarah M Cockle, Steven W Yancey, Guy Brusselle, Frank C Albers, Paul W Jones
PURPOSE: Content validity is the extent to which a patient-reported outcome measure evaluates the concepts most relevant to a patient's condition and treatment. The St George's Respiratory Questionnaire (SGRQ) has been validated in a range of respiratory conditions. This study evaluated the content validity of the SGRQ in patients with severe asthma. METHODS: A qualitative study, guided by a protocol, which included concept elicitation and cognitive debriefing of the SGRQ, was conducted in patients aged ≥18 years with history of severe asthma and blood eosinophil counts of ≥150/μL (past month) or ≥300/μL (past 12 months)...
May 2017: Respiratory Medicine
https://www.readbyqxmd.com/read/28427296/predictors-of-response-to-therapy-with-omalizumab-in-patients-with-severe-allergic-asthma-a-real-life-study
#3
Maria Kallieri, Andriana I Papaioannou, Evgenia Papathanasiou, Polyxeni Ntontsi, Spyridon Papiris, Stelios Loukides
INTRODUCTION: Omalizumab is a recombinant humanized IgG1 monoclonal anti-IgE antibody, used for the treatment of severe refractory allergic asthma. However, not all patients with IgE levels within the limits of administration, respond to treatment. The aim of the present study, was to determine clinical and inflammatory characteristics that could predict response to omalizumab. METHODS: We studied retrospectively patients treated with omalizumab as per GINA guidelines in one asthma tertiary referral center...
April 21, 2017: Postgraduate Medicine
https://www.readbyqxmd.com/read/28426171/sputum-basophils-are-increased-in-eosinophilic-asthma-compared-with-non-eosinophilic-asthma-phenotypes
#4
Collin R Brooks, Christine J van Dalen, Ian F Hermans, Peter G Gibson, Jodie L Simpson, Jeroen Douwes
Sputum basophil numbers are increased in allergic asthmatics, but it is unclear what role airway basophils play in "TH2-low" asthma phenotypes. Using flow cytometry we found that basophils were significantly increased in all asthmatics (n=26) compared with healthy controls (n=8) (p=0.007) with highest levels observed in eosinophilic asthma (EA; median 0.22%, IQR 0.11-0.47%; n=14) compared with non-EA (0.06%, 0.00-0.20%; n=12; p<0.05). In asthmatics, basophils were positively correlated with sputum eosinophils (r=0...
April 20, 2017: Allergy
https://www.readbyqxmd.com/read/28425576/bone-marrow-adipose-and-lung-tissue-derived-murine-mesenchymal-stromal-cells-release-different-mediators-and-differentially-affect-airway-and-lung-parenchyma-in-experimental-asthma
#5
Soraia C Abreu, Mariana A Antunes, Debora G Xisto, Fernanda F Cruz, Vivian C Branco, Elga Bandeira, Jamil Zola Kitoko, Almair F de Araújo, Ludmilla Dellatorre-Texeira, Priscilla C Olsen, Daniel J Weiss, Bruno L Diaz, Marcelo M Morales, Patricia R M Rocco
Mesenchymal stromal cells (MSCs) from different sources have differential effects on lung injury. To compare the effects of murine MSCs from bone marrow (BM), adipose tissue (AD), and lung tissue (LUNG) on inflammatory and remodeling processes in experimental allergic asthma, female C57BL/6 mice were sensitized and challenged with ovalbumin (OVA) or saline (C). Twenty-four hours after the last challenge, mice received either saline (50 µl, SAL), BM-MSCs, AD-MSCs, or LUNG-MSCs (10(5) cells per mouse in 50 µl total volume) intratracheally...
April 20, 2017: Stem Cells Translational Medicine
https://www.readbyqxmd.com/read/28423590/neutralization-of-interleukin-17-suppresses-allergic-rhinitis-symptoms-by-downregulating-th2-and-th17-responses-and-upregulating-the-treg-response
#6
Zhao Wei Gu, Yun Xiu Wang, Zhi Wei Cao
Allergic rhinitis (AR) has long been considered to predominantly involve the actions of Th2 cells, with relatively small contributions from Th1 cells. In recent years, the discovery of Th17 and regulatory T (Treg) cells has rendered the Th1/Th2 balance paradigm more complex and expanded our understanding of the pathogenesis of AR. IL-17, a key cytokine produced by Th17 cells, is known to induce allergen-specific Th2 cell activation, eosinophil and neutrophil accumulation, and serum IgE production in asthma; all of these features may play important roles in AR...
April 4, 2017: Oncotarget
https://www.readbyqxmd.com/read/28422515/allergen-induced-increases-in-sputum-levels-of-group-2-innate-lymphoid-cells-in-asthmatic-subjects
#7
Ruchong Chen, Steven G Smith, Brittany Salter, Amani El-Gammal, John Paul Oliveria, Caitlin Obminski, Rick Watson, Paul M O'Byrne, Gail M Gauvreau, Roma Sehmi
RATIONALE: Group 2 innate lymphoid cells (ILC2), a major source of type 2 cytokines, initiate eosinophilic inflammatory responses in murine models of asthma. OBJECTIVES: Investigate the role of ILC2 in allergen-induced airway eosinophilic responses in atopic asthmatics. METHODS: Using a diluent-controlled allergen challenge cross-over study, where all subjects (n=10) developed allergen-induced early and late responses , airway eosinophilia and increased methacholine airway responsiveness, bone marrow, blood and sputum samples were collected pre- and post-inhalation challenge...
April 19, 2017: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/28421429/reslizumab-in-eosinophilic-asthma-a-review
#8
Emma D Deeks, Guy Brusselle
Reslizumab (Cinqaero(®); Cinqair(®)) is a humanized monoclonal antibody against interleukin-5 (IL-5), a cytokine mediator of eosinophilic airway inflammation. Reslizumab is indicated as an add-on treatment for severe eosinophilic asthma in adults, on the basis of data from the BREATH phase III clinical trial programme. In three double-blind BREATH studies of up to 52 weeks' duration, adding intravenous reslizumab (3 mg/kg, once every 4 weeks) to the current asthma therapy of patients (aged 12-75 years) with eosinophilic asthma inadequately controlled with inhaled corticosteroids resulted in significant reductions in clinical asthma exacerbation frequency and significant improvements in lung function, asthma control and health-related quality of life relative to adding placebo...
April 18, 2017: Drugs
https://www.readbyqxmd.com/read/28407269/clinical-functional-and-inflammatory-characteristics-in-patients-with-pauci-granulocytic-stable-asthma-comparison-with-different-sputum-phenotypes
#9
Polyxeni Ntontsi, Stelios Loukides, Petros Bakakos, Konstantinos Kostikas, Georgios Papatheodorou, Evgenia Papathanassiou, Georgios Hillas, Nikolaos Koulouris, Spyros Papiris, Andriana I Papaioannou
BACKGROUND: According to induced sputum cell count, four different asthma phenotypes have been recognised(eosinophilic, neutrophilic, mixed and pauci-granulocytic). The aim of the present study was to detect functional and inflammatory characteristics of patients with pauci-granulocytic asthma. METHODS: 240 asthmatic patients were categorised in the four phenotypes according to cell counts in induced sputum. All patients underwent pulmonary function tests, and measurement of FeNO...
April 13, 2017: Allergy
https://www.readbyqxmd.com/read/28406319/benralizumab-as-a-potential-treatment-of-asthma
#10
Sabina Antonela Antoniu
Current anti-inflammatory asthma therapies including inhaled corticosteroids and leukotriene modifiers, are not always able to appropriately control the disease and other approaches are needed. These therapies specific target IgE (omalizumab) or IL-5 (mepolizumab). However, there is research underway investigating interleukin-based monoclonal antibodies such as benralizumab, an anti-IL-5R monoclonal antibody which is currently in phase III clinical development. Areas covered: This review summarizes the existing preclinical and clinical data of benralizumab...
April 19, 2017: Expert Opinion on Biological Therapy
https://www.readbyqxmd.com/read/28402696/chronic-cough-and-an-atypical-peripheral-pattern-on-chest-imaging-a-case-report-secondary-to-suspected-drug-onset
#11
Ronnie Alas, Mark Tony Williams, Ghiam Yamin, Mohsen Rofoogaran
INTRODUCTION: Chronic eosinophilic pneumonia (CEP) is an uncommon interstitial lung disease with nonspecific symptoms that is a diagnostic and treatment challenge. The exact pathology is unknown and putatively involves a complex inflammatory cascade associated with the abnormal accumulation of eosinophils. Our patient had a history of adult-onset asthma after initiating TNF-inhibitor therapy. CEP coexisting with asthma has been reported, but never linked to the use of a TNF-inhibitor-as we report here...
April 12, 2017: Journal of Asthma: Official Journal of the Association for the Care of Asthma
https://www.readbyqxmd.com/read/28401621/mouse-models-of-severe-asthma-understanding-the-mechanisms-of-steroid-resistance-tissue-remodelling-and-disease-exacerbation
#12
REVIEW
Steven Maltby, Hock L Tay, Ming Yang, Paul S Foster
Severe asthma has significant disease burden and results in high healthcare costs. While existing therapies are effective for the majority of asthma patients, treatments for individuals with severe asthma are often ineffective. Mouse models are useful to identify mechanisms underlying disease pathogenesis and for the preclinical assessment of new therapies. In fact, existing mouse models have contributed significantly to our understanding of allergic/eosinophilic phenotypes of asthma and facilitated the development of novel targeted therapies (e...
April 11, 2017: Respirology: Official Journal of the Asian Pacific Society of Respirology
https://www.readbyqxmd.com/read/28399782/the-effects-of-chrysophanol-on-ovalbumin-ova-induced-chronic-lung-toxicology-by-inhibiting-th17-response
#13
Chunyan Zhang, Yafan Song, Congxia Wang, Ling Zhao, Huafeng Kang, Xiaobin Ma, Jing Wang, Tianzhu Zhang, Wang Shumin, Chunhua Ma
Chrysophanol (CH), extracted from plants of Rheum genus, possesses various pharmacological effects including anti-inflammatory activity. The purpose of the present study was to evaluate the protective effects and the underlying mechanisms of CH on ovalbumin (OVA)-induced asthma in mice. Fifty mice were randomly assigned to five experimental groups: control group, model group, dexamethasone (2 mg/kg) group and CH (5 and 10 mg/kg) groups. The number of eosinophil cells and the production of interleukin-6 (IL-6), IL-1β, IL-17 A and tumor necrosis factor-α in bronchoalveolar lavage fluid (BALF) were measured...
June 2017: Toxicology Mechanisms and Methods
https://www.readbyqxmd.com/read/28399677/elevated-serum-levels-of-tnf-%C3%AE-il-8-and-ecp-can-be-involved-in-the-development-and-progression-of-bronchial-asthma
#14
Xiao-Gang Jiang, Xu-Dong Yang, Zhe Lv, Peng-Hui Zhuang
OBJECTIVE: This study aimed to explore the value of elevated serum levels of tumor necrosis factor-α (TNF-α), interleukin-8 (IL-8) and eosinophil cationic protein (ECP) in the diagnosis of bronchial asthma (BA). METHODS: Totally 170 patients with BA (case group, 85 patients in acute attack and 85 patients in clinical remission) and 150 healthy individuals (control group). Enzyme-linked immunosorbent assay (ELISA) and receiver operating characteristic (ROC) curves were calculated for the contents and diagnostic values of serum TNF-α, IL-8, and ECP in BA...
April 11, 2017: Journal of Asthma: Official Journal of the Association for the Care of Asthma
https://www.readbyqxmd.com/read/28398635/serum-periostin-relates-to-type-2-inflammation-and-lung-function-in-asthma-data-from-the-large-population-based-cohort-swedish-ga-2-len
#15
Anna James, Christer Janson, Andrei Malinovschi, Cecile Holweg, Kjell Alving, Junya Ono, Shoichiro Ohta, Alexandra Ek, Roelinde Middelveld, Barbro Dahlén, Bertil Forsberg, Kenji Izuhara, Sven-Erik Dahlén
BACKGROUND: Periostin has been suggested as a novel, phenotype-specific biomarker for asthma driven by type-2 inflammation. However, large studies examining relationships between circulating periostin and patient characteristics are lacking and the suitability of periostin as a biomarker in asthma remains unclear. AIM: To examine circulating periostin in healthy controls and subjects with asthma from the general population with different severity and treatment profiles, both with and without chronic rhinosinusitis (CRS), in relation to other biomarkers and clinical characteristics...
April 11, 2017: Allergy
https://www.readbyqxmd.com/read/28396690/sputum-cell-counts-to-manage-prednisone-dependent-asthma-effects-on-fev1-and-eosinophilic-exacerbations
#16
Afia Aziz-Ur-Rehman, Angira Dasgupta, Melanie Kjarsgaard, Frederick E Hargreave, Parameswaran Nair
BACKGROUND: Prednisone dependence in asthma is usually described based on clinical and spirometric characteristics. It is generally believed that these patients have frequent exacerbations and lose lung function rapidly because of uncontrolled airway eosinophilia. OBJECTIVES: The objectives of this study are to report the effect on asthma exacerbations and the change in lung function over time in prednisone-dependent asthma when severe asthma is managed using a protocol that aims to maintain normal sputum cell counts...
2017: Allergy, Asthma, and Clinical Immunology
https://www.readbyqxmd.com/read/28396105/eosinophilic-esophagitis-a-case-study-of-a-12-year-old-boy
#17
Katherine Kiely
Eosinophilic esophagitis is an underrecognized chronic condition in which symptoms of gastroesophageal reflux are accompanied by eosinophilia in the esophagus. This disorder affects both children and adults and is associated with a history of other atopic disorders, particularly food allergies. This case study discusses the epidemiology of eosinophilic esophagitis and the proper procedures for diagnosis, referral, and management using the dietary restrictions and pharmacologic treatment included in the clinical recommendations issued by the North American Society for Pediatric Gastroenterology, Hepatology, and Nutrition; the American Academy of Allergy, Asthma, and Immunology; and the American College of Gastroenterologists...
April 7, 2017: Journal of Pediatric Health Care
https://www.readbyqxmd.com/read/28395936/efficacy-of-mepolizumab-add-on-therapy-on-health-related-quality-of-life-and-markers-of-asthma-control-in-severe-eosinophilic-asthma-musca-a-randomised-double-blind-placebo-controlled-parallel-group-multicentre-phase-3b-trial
#18
Geoffrey L Chupp, Eric S Bradford, Frank C Albers, Daniel J Bratton, Jie Wang-Jairaj, Linda M Nelsen, Jennifer L Trevor, Antoine Magnan, Anneke Ten Brinke
BACKGROUND: Mepolizumab, an anti-interleukin-5 monoclonal antibody approved as add-on therapy to standard of care for patients with severe eosinophilic asthma, has been shown in previous studies to reduce exacerbations and dependency on oral corticosteroids compared with placebo. We aimed to further assess mepolizumab in patients with severe eosinophilic asthma by examining its effect on health-related quality of life (HRQOL). METHODS: We did a randomised, double-blind, placebo-controlled, parallel-group, multicentre, phase 3b trial (MUSCA) in 146 hospitals or research centres in 19 countries worldwide...
April 5, 2017: Lancet Respiratory Medicine
https://www.readbyqxmd.com/read/28395935/mepolizumab-quality-of-life-and-severe-eosinophilic-asthma
#19
Ian D Pavord
No abstract text is available yet for this article.
April 5, 2017: Lancet Respiratory Medicine
https://www.readbyqxmd.com/read/28395725/-elevated-il-18-il-18-binding-protein-and-il-18-receptor-in-eosinophil-enriched-blood-cells-in-patients-with-asthma
#20
Leilei Yuan, Sijing Lu, Huiyun Zhang, Junling Wang, Yalin Hu, Ling Wang, Shaoheng He
Objective To investigate the changes of interleukin-18 (IL-18), interleukin 18 binding protein (IL-18BP) and interleukin 18 receptor (IL-18R) expressions in eosinophil-enriched cells from asthmatic patients, and study the correlations among them. Methods Peripheral venous blood from asthmatic patients and normal subjects were collected and stimulated with the extracts of Artemisia pollen, dust mite, and Platanus pollen. The expressions of IL-18, IL-18BP and IL-18R in eosinophil-enriched blood cells were detected by flow cytometry, and the correlations among them were analyzed...
April 2017: Xi Bao Yu Fen Zi Mian Yi Xue za Zhi, Chinese Journal of Cellular and Molecular Immunology
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