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Bronchial asthma

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https://www.readbyqxmd.com/read/29046644/more-relaxation-by-deep-breath-on-methacholine-than-on-exercise-induced-bronchoconstriction-during-the-routine-testing-of-asthmatic-children
#1
Iulia Ioan, Aurélie Tatopoulos, Stéphanie Metche, Laurianne Coutier, Emmanuelle Houriez, Sébastien Kiefer, Aurore Blondé, Claude Bonabel, François Marchal, Jocelyne Derelle, Cyril E Schweitzer, Silvia Demoulin-Alexikova
Deep inspiration (DI) dilates normal airway precontracted with methacholine. The fact that this effect is diminished or absent in asthma could be explained by the presence of bronchial inflammation. The hypothesis was tested that DI induces more relaxation in methacholine induced bronchoconstriction-solely determined by the smooth muscle contraction-than in exercise induced bronchoconstriction, which is contributed to by both smooth muscle contraction and airway wall inflammation. The respiratory conductance (Grs) response to DI was monitored in asthmatic children presenting a moderately positive airway response to challenge by methacholine (n = 36) or exercise (n = 37), and expressed as the post- to pre-DI Grs ratio (GrsDI)...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/29045689/sensitivity-to-house-dust-mites-allergens-with-atopic-asthma-and-its-relationship-with-cd14-c-159t-polymorphism-in-patients-of-west-bengal-india
#2
Amlan Ghosh, Shampa Dutta, Sanjoy Podder, Priti Mondal, Arghya Laha, Nimai Chandra Saha, Saibal Moitra, Goutam Kumar Saha, Richard Johnson
India is the home to around 15-20 million asthmatics, and asthma prevalence is increasing in Indian metropolitan area, including Kolkata, West Bengal. Complex interactions of genetic and environmental factors are involved in asthma. Genome-wide search for susceptible loci regulating IgE response (atopy) have identified a candidate gene CD14 which is most important in the context of allergic responses of respiratory system. This study was aimed to investigate the role of house dust and house dust mites in development of bronchial asthma and to explore the possible association of candidate gene CD14 with disease manifestation among Kolkata patient population...
October 17, 2017: Journal of Medical Entomology
https://www.readbyqxmd.com/read/29042937/inflammation-and-airway-remodeling-of-the-lung-in-guinea-pigs-with-allergic-rhinitis
#3
Zu-Yao Chen, Shou-Hong Zhou, Qiao-Feng Zhou, Hong-Bo Tang
Allergic rhinitis (AR) and asthma belong to the category of type I allergic diseases, whose pathological features are airway remodeling of the lung and allergic inflammation. The aim of the present study was to evaluate inflammation and remodeling of lung tissue in a guinea pig model of AR in order to confirm consistent pathological changes of upper and lower airways in AR. Male guinea pigs were randomly divided into an experimental and a control group (n=10 in each). The AR model was established by sensitization through intraperitoneal injection of ovalbumin for three weeks and bilateral nasal local excitation for twelve weeks...
October 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29042800/postpartum-airway-responsiveness-and-exacerbation-of-asthma-during-pregnancy-a-pilot-study
#4
Zarqa Ali, Lisbeth Nilas, Charlotte Suppli Ulrik
BACKGROUND: Airway responsiveness and inflammation are associated with the clinical manifestations of asthma and the response to pharmacological therapy. OBJECTIVE: To investigate if airway responsiveness and inflammatory characteristics are related to asthma exacerbations during pregnancy. MATERIALS AND METHODS: In women with asthma who were prescribed controller medication and monitored closely during pregnancy, the risk of exacerbations was analyzed in relation to postpartum measures of fractional exhaled nitric oxide (FENO), skin prick test reactivity, static and dynamic lung volumes, diffusing capacity for carbon monoxide, bronchial responsiveness to inhaled mannitol, and inflammatory characteristics in induced sputum...
2017: Journal of Asthma and Allergy
https://www.readbyqxmd.com/read/29037302/feno-levels-increase-with-degree-of-sensitisation-in-apprentices-at-risk-of-occupational-asthma
#5
P Wild, H Mével, E Penven, D Zmirou-Navier, A Barbaud, A Bohadana, C Paris
BACKGROUND: Atopy has emerged as a major determinant of airway inflammation. OBJECTIVE: To examine whether early markers of occupational asthma increase with degree of sensitisation. METHOD: This study was a prospective follow-up study of apprentices in baking, pastry-cooking and hairdressing during their 2-year apprenticeship. Four visits were conducted to administer a standardised questionnaire, a methacholine challenge test to assess bronchial hyperresponsiveness (BHR) and to measure fractional exhaled nitric oxide (FeNO)...
November 1, 2017: International Journal of Tuberculosis and Lung Disease
https://www.readbyqxmd.com/read/29037300/high-resolution-computed-tomography-findings-in-chronic-eosinophilic-vs-cryptogenic-organising-pneumonia
#6
P Mehrian, A Doroudinia, A Rashti, O Aloosh, A Dorudinia
BACKGROUND: The similar clinical and computed tomography (CT) characteristics of cryptogenic organising pneumonia (COP) and chronic eosinophilic pneumonia (CEP) make precise diagnosis challenging. OBJECTIVES: To help differentiate between COP and CEP using high-resolution CT (HRCT). DESIGN: Clinical data and HRCT images of COP and CEP patients referred to Masih Daneshvari Hospital, Tehran, Iran, from 2007 to 2015 were reviewed. Diagnosis of COP or CEP was confirmed using open lung biopsy or a combination of transbronchial biopsy, bronchoalveolar lavage fluid (BALF) analysis, peripheral eosinophilia and a favourable response to corticosteroids...
November 1, 2017: International Journal of Tuberculosis and Lung Disease
https://www.readbyqxmd.com/read/29037099/eosinophilic-otitis-media-diagnosis-using-flow-cytometric-immunophenotyping
#7
Issam Saliba, Musaed Alzahrani, Xiaoduan Weng, Alain Bestavros
OBJECTIVES: (1) To assess the ability of flow cytometric immunophenotyping to detect and quantitate eosinophils in patients with eosinophilic otitis media (EOM). (2) to evaluate the association of EOM to bronchial asthma. METHODS: Twenty-one patients with chronic otorrhea or middle ear effusion (MEE) were included in this prospective cohort study. Group I composed of 10 patients (14 ears) and associated to bronchial asthma. Group II included 11 patients (11 ears) without bronchial asthma...
October 16, 2017: Acta Oto-laryngologica
https://www.readbyqxmd.com/read/29033571/bronchial-thermoplasty-and-the-role-of-airway-smooth-muscle-are-we-on-the-right-direction
#8
REVIEW
Francesco Menzella, Mirco Lusuardi, Carla Galeone, Nicola Facciolongo
Asthma is characterized by inflammation of the airways that includes eosinophils, basal membrane thickening, epithelial sloughing, vascular changes, smooth muscle hypertrophy and hyperplasia, and mucous gland hyperplasia. Recently, there have been studies on the role of hypersensitivity and inflammation in asthma, but the role of bronchial smooth muscle remains unclear. Bronchial thermoplasty is an endoscopic procedure that is approved by the US Food and Drug Administration (FDA) for the treatment of severe refractory asthma, based on the local delivery of radio frequency at 65°C to the airways, with the aim of controlling bronchospasm through a reduction of airway smooth muscle (ASM)...
2017: Therapeutics and Clinical Risk Management
https://www.readbyqxmd.com/read/29033420/usefulness-of-bronchial-thermoplasty-for-patients-with-a-deteriorating-lung-function-a-report-of-two-cases
#9
Daisuke Minami, Chihiro Ando, Takamasa Nakasuka, Yoshitaka Iwamoto, Ken Sato, Keiichi Fujiwara, Takuo Shibayama, Toshirou Yonei, Toshio Sato
Bronchial thermoplasty is a novel procedure for patients with severe asthma showing a stable lung function. We herein report two cases with a deteriorating lung function. The lung function tended to improve in one case, while the other case discontinued mepolizumab medication after the procedure. Treatment was performed safely under general anesthesia in both cases. The use of bronchial thermoplasty may therefore be useful for the treatment of patients with a deteriorating lung function.
October 16, 2017: Internal Medicine
https://www.readbyqxmd.com/read/29032837/accelerated-reactivity-of-blood-granulocytes-in-patients-with-atopic-bronchial-asthma-out-of-exacerbation
#10
Irina V Tikhonova, Ninel I Kosyakova, Andrey A Grinevich, Alexander D Nadeev, Nikolai K Chemeris, Valentina G Safronova
Reactive oxygen species (ROS) are important in bronchial asthma (BA) pathogenesis owing to accumulation of activated granulocytes in the lungs. But the ROS-producing activity of the cells is insufficiently understood in the blood of BA patients. This study analyzes the kinetics of phagocyte respiratory burst in the blood to improve the methods of BA patients monitoring. Patients with atopic BA out of exacerbation (n=60) and healthy controls (n=43) were recruited. The time-course of respiratory response to opsonized zymosan (OZ) was recorded in the whole blood using luminol-dependent chemiluminescence (CL), and its activation kinetics (lag-time, rate, amplitude, ROS production) was calculated...
October 5, 2017: Immunobiology
https://www.readbyqxmd.com/read/29032198/antagonism-of-cysteinyl-leukot-riene-receptor-1-cyslt1r-by-montelukast-regulates-differentiation-of-mc3t3-e1-cells-under-overloaded-mechanical-environment
#11
Jinsong Wei, Siyuan Chen, Chengshuo Huang, Weixiong Guo, Shukai Yang, Bailin Feng, Jiaqi Chu
Long-term exposure to overloaded mechanical environment induces bone fatigue damage symptoms and osteoblast damages. Montelukast is a selective cysteinyl leukot-riene receptor 1 (cysLT1R) antagonist, which has been used for the treatment of bronchial asthma in clinics. In the current study, we have identified a novel pharmacological role of montelukast by finding that it has protective properties against overload damage in osteoblastic MC3T3-E1 cells. Firstly, our results show that CysLT1R is expressed in MC3T3-E1 cells...
October 11, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29031476/il-1%C3%AE-upregulates-muc5ac-expression-via-nf-%C3%AE%C2%BAb-induced-hif-1%C3%AE-in-asthma
#12
Shouzhen Wu, Hailong Li, Lijuan Yu, Ning Wang, Xu Li, Wei Chen
The manifest and important feature in respiratory diseases, including asthma and COPD (chronic obstructive pulmonary disease), is the increased numbers and hypersecretion of goblet cells and overexpression of mucins, especially Muc5ac. Many proinflammatory cytokines play important roles in goblet cell metaplasia and overproduction of Muc5ac. However, the effect of IL-1β on Muc5ac expression in asthma remains unknown. Here, we detected the correlation between IL-1β and Muc5ac in asthma patients and further explored the mechanism of IL-1β-induced Muc5ac overexpression...
October 12, 2017: Immunology Letters
https://www.readbyqxmd.com/read/29026607/wheezing-and-dyspnoea-caused-by-aberrant-left-innominate-artery
#13
Masamichi Hayashi, Kazuyoshi Imaizumi, Hidekazu Hattori, Hiroshi Toyama, Mitsushi Okazawa
We present a rare case of a branching anomaly of the aortic arch that resulted in wheezing and dyspnoea. The patient was a 60-year-old male with severe wheezing from babyhood, originally diagnosed with severe bronchial asthma. On auscultation, the inspiratory and expiratory wheezes appeared when the patient leaned forward. He also had difficulty in swallowing solid mass. Tests for airway reversibility and hyperresponsiveness were negative, and asthma treatment was ineffective. He had a right aortic arch. A barium oesophagogram and endoscopic examination indicated narrowing of the oesophagus from behind...
November 2017: Respirology Case Reports
https://www.readbyqxmd.com/read/29025885/-long-term-outcomes-of-bronchial-thermoplasty-in-subjects-with-severe-asthma-a-comparison-of-3-year-follow-up-results-from-two-prospective-multicentre-studies-geoffrey-chupp-michel-laviolette-lauren-cohn-charlene-mcevoy-sandeep-bansal-adrian-shifren-sumita
#14
https://www.readbyqxmd.com/read/29025836/assessment-of-potential-predictors-of-calretinin-and-mesothelin-to-improve-the-diagnostic-performance-to-detect-malignant-mesothelioma-results-from-a-population-based-cohort-study
#15
Swaantje Casjens, Daniel G Weber, Georg Johnen, Irina Raiko, Dirk Taeger, Carmen Meinig, Susanne Moebus, Karl-Heinz Jöckel, Thomas Brüning, Beate Pesch
OBJECTIVES: Mesothelin and calretinin are blood-based markers for malignant mesothelioma. The objective of this study was to analyse the markers in plasma samples from cancer-free men and to identify factors influencing their concentrations to minimise false-positive test results when using these markers for the early detection of malignant mesothelioma. SETTING: The present analyses used data and archived blood samples of the population-based Heinz Nixdorf Recall Study among elderly people collected from 2011 to 2014...
October 11, 2017: BMJ Open
https://www.readbyqxmd.com/read/29018800/asthma-endotypes-and-an-overview-of-targeted-therapy-for-asthma
#16
REVIEW
Sarah Svenningsen, Parameswaran Nair
Guidelines for the management of severe asthma do not emphasize the measurement of the inflammatory component of airway disease to indicate appropriate treatments or to monitor response to treatment. Inflammation is a central component of asthma and contributes to symptoms, physiological, and structural abnormalities. It can be assessed by a number of endotyping strategies based on "omics" technology such as proteomics, transcriptomics, and metabolomics. It can also be assessed using simple cellular responses by quantitative cytometry in sputum...
2017: Frontiers in Medicine
https://www.readbyqxmd.com/read/29017524/chronic-obstructive-pulmonary-disease-bronchial-asthma-and-allergic-rhinitis-in-the-adult-population-within-the-commonwealth-of-independent-states-rationale-and-design-of-the-core-study
#17
Yuriy Feshchenko, Liudmila Iashyna, Damilya Nugmanova, Olga Gyrina, Marina Polyanskaya, Alexander Markov, Maryna Moibenko, Janina Makarova, Luqman Tariq, Marcelo Horacio S Pereira, Elcan Mammadbayov, Irada Akhundova, Averyan Vasylyev
BACKGROUND: Main treatable Chronic Respiratory Diseases (CRDs) like Chronic Obstructive Pulmonary Disease (COPD), Bronchial Asthma (BA) and Allergic Rhinitis (AR) are underdiagnosed and undertreated worldwide. CORE study was aimed to assess the point prevalence of COPD, BA and AR in the adult population of major cities of Commonwealth of Independent States (CIS) countries - Azerbaijan, Kazakhstan, and Ukraine based on study questionnaires and/or spirometry, and to document risk factors, characterize the COPD, BA and AR population to provide a clearer "epidemiological data"...
October 10, 2017: BMC Pulmonary Medicine
https://www.readbyqxmd.com/read/29017221/-biologicals-in-the-treatment-of-bronchial-asthma
#18
I Haasler, C Taube
Biologicals are a therapeutic option for patients with severe asthma. Difficult asthma in patients with untreated comorbidities or persistent trigger factors is much more common than severe refractory asthma. Optimized medical treatment, adherence to medication, elimination of trigger factors and treatment of comorbidities are essential before escalating the therapy with a biological. A careful phenotyping of patient with severe asthma is necessary because all available biological are only effective in certain phenotypes of the disease...
October 2017: Pneumologie
https://www.readbyqxmd.com/read/28993393/recurrent-wheeze-and-its-relationship-with-lung-function-and-airway-inflammation-in-preschool-children-a-cross-sectional-study-in-south-korea
#19
Ji Eun Soh, Kyung-Moon Kim, Ji-Won Kwon, Hyung Young Kim, Ju-Hee Seo, Hyo-Bin Kim, So-Yeon Lee, Gwang-Cheon Jang, Dae-Jin Song, Woo Kyung Kim, Young-Ho Jung, Soo-Jong Hong, Jung Yeon Shim
BACKGROUND: Relationship between recurrent wheeze and airway function and inflammation in preschool children is not fully known. OBJECTIVE: To investigate the relationship between recurrent wheeze and airway inflammation, lung function, airway hyper-reactivity (AHR) and atopy in preschool children. DESIGN: Observational study, comparing forced expiratory volume in 1 s (FEV1), forced vital capacity (FVC) and mid-forced expiratory flow (FEF25%-75%), dose-response slope (DRS), exhaled nitric oxide (eNO) and atopic sensitisation between children with recurrent wheeze and those without...
October 8, 2017: BMJ Open
https://www.readbyqxmd.com/read/28990886/-assessing-the-knowledge-in-primary-health-care-following-an-educational-course-structured-in-the-context-of-gard-chronic-airway-diseases-national-control-program
#20
Ferda Öner Erkekol, Nurdan Köktürk, Dilşad Mungan, Cansın Saçkesen, Zeynep Pınar Önen, Seçil Özkan, Arzu Balkan, Pınar Ergün, Can Naci Kocabaş, Nur Baran Aksakal, Banu Ekici, Zübeyde Özkan Altunay, Bilun Gemicioğlu, Arzu Yorgancıoğlu
Introduction: Chronic obstructive pulmonary diseases are common causes of disease in the community and account for considerable percent of the caseload in primary health care facilities. For this reason, it is important to question and improve the knowledge of primary health care physicians. This study is designed to assess the level of knowledge for bronchial asthma and COPD of the primary healthcare physicians, both before and immediately after an educational course structured in the context of GARD Chronic Airway Diseases National Control Program...
June 2017: Tüberküloz Ve Toraks
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