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Bronchial asthma

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https://www.readbyqxmd.com/read/29656209/phosphorylation-of-low-density-lipoprotein-receptor-related-protein-6-is-involved-in-receptor-for-advanced-glycation-end-product-mediated-%C3%AE-catenin-stabilization-in-a-toluene-diisocyanate-induced-asthma-model
#1
Jing Xiong, Wenqu Zhao, Yun Lin, Lihong Yao, Guohua Huang, Changhui Yu, Hangming Dong, Guanhua Xiao, Haijin Zhao, Shaoxi Cai
BACKGROUND: We have previously demonstrated that the receptor for advanced glycation end products (RAGE)/β-catenin axis plays a vital role in regulating airway inflammation and airway remodeling in a toluene diisocyanate (TDI)-induced murine asthma model. However, the exact mechanism of β-catenin activation remains unclear. Given that phosphorylation of the low-density lipoprotein receptor-related protein 6 (Lrp6) is a key step in mediating β-catenin stabilization in canonical wnt/β-catenin signaling, we explored the possible relationship between RAGE and Lrp6 in regulating β-catenin stabilization in TDI-induced asthma...
April 12, 2018: International Immunopharmacology
https://www.readbyqxmd.com/read/29652177/broncho-epithelial-iga-secretion-is-impaired-in-asthma-role-of-il-4-il-13
#2
Maha Zohra Ladjemi, Delphine Gras, Sébastien Dupasquier, Bruno Detry, Marylène Lecocq, Céline Garulli, Chantal Fregimilicka, Caroline Bouzin, Sophie Gohy, Pascal Chanez, Charles Pilette
RATIONALE: Asthma is associated with increased lung IgE production, but whether the secretory (S-)IgA system is affected in this disease remains unknown. OBJECTIVES: We explored mucosal IgA transport in human asthma and its potential regulation by Th2 inflammation. METHODS: Bronchial biopsies from asthma and control subjects were assayed for broncho-epithelial pIgR expression and correlated to Th2 biomarkers. Bronchial epithelium reconstituted in vitro from these subjects, upon culture in air-liquid interface, was assayed for pIgR expression and regulation by IL-4/IL-13...
April 13, 2018: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/29651336/pi3k-p38-and-jak-stat-signalling-in-bronchial-tissue-from-patients-with-asthma-following-allergen-challenge
#3
Thomas Southworth, Sarah Mason, Alan Bell, Isabel Ramis, Marta Calbet, Anna Domenech, Neus Prats, Montserrat Miralpeix, Dave Singh
Background: Inhaled allergen challenges are often used to evaluate novel asthma treatments in early phase clinical trials. Current novel therapeutic targets in asthma include phosphoinositide 3-kinases (PI3K) delta and gamma, p38 mitogen-activated protein kinase (p38) and Janus kinase/Signal Transducer and Activator of Transcription (JAK/STAT) signalling pathways. The activation of these pathways following allergen exposure in atopic asthma patients it is not known. Methods: We collected bronchial biopsies from 11 atopic asthma patients at baseline and after allergen challenge to investigate biomarkers of PI3K, p38 MAPK and JAK/STAT activation by immunohistochemistry...
2018: Biomarker Research
https://www.readbyqxmd.com/read/29650833/-a-case-of-local-recurrence-of-descending-colon-cancer-with-ileus-obstruction-and-lung-liver-and-brain-metastasis
#4
Ryouichi Tomita, Shigeru Fujisaki, Kenichi Sakurai, Takeo Azuhata, Yuko Takamoto
We report a 50-year-old man with local recurrence of descending colon cancer with ileus obstruction and brain metastasis, 2 years 6 months after initial resection due to perforation of descending colon cancer(Hartmann procedure, D2 lymph node resection, Stage II, tub2). He complained of left upper abdominal pain and abdominal fullness. He also complained of paresis of the right upper extremity and of experiencing convulsions 1 month before admission. He was diagnosed with local recurrence of descending colon cancer, based on findings of contrast radiography and the presence of colonic fiber...
April 2018: Gan to Kagaku Ryoho. Cancer & Chemotherapy
https://www.readbyqxmd.com/read/29650561/meta-analysis-of-airway-epithelia-gene-expression-in-asthma
#5
Yi-Hsuan Tsai, Joel S Parker, Ivana V Yang, Samir N P Kelada
Differential gene expression in the airway epithelium of asthmatics vs. controls has been reported in several studies. However, there is no consensus on which genes are reproducibly affected in asthma. We sought to identify a consensus list of differentially expressed genes (DEGs) using a meta-analysis approach.We identified eight studies with data that met defined inclusion criteria. In total, these studies were comprised of 355 cases and 193 controls and involved sampling of either bronchial or nasal epithelium...
April 12, 2018: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
https://www.readbyqxmd.com/read/29650557/sputum-proteomics-and-airway-cell-transcripts-of-current-and-ex-smokers-with-severe-asthma-in-u-biopred-an-exploratory-analysis
#6
Kentaro Takahashi, Stelios Pavlidis, Francois Ng Kee Kwong, Uruj Hoda, Christos Rossios, Kai Sun, Matthew Loza, Fred Baribaud, Pascal Chanez, Steve J Fowler, Ildiko Horvath, Paolo Montuschi, Florian Singer, Jacek Musial, Barbro Dahlen, Sven-Eric Dahlen, N Krug, Thomas Sandstrom, Dominic E Shaw, Rene Lutter, Per Bakke, Louise J Fleming, Peter H Howarth, Massimo Caruso, Ana R Sousa, Julie Corfield, Charles Auffray, Bertrand De Meulder, Diane Lefaudeux, Ratko Djukanovic, Peter J Sterk, Yike Guo, Ian M Adcock, Kian Fan Chung
Background: Severe asthma patients with a significant smoking history have airflow obstruction with reported neutrophilia. We hypothesise that multi-omic analysis will enable the definition of smoking and ex-smoking severe asthma molecular phenotypes. Methods: The U-BIOPRED severe asthma patients containing current-smokers (CSA), ex-smokers (ESA), non-smokers (NSA) and healthy non-smokers (NH) was examined. Blood and sputum cell counts, fractional exhaled nitric oxide and spirometry were obtained. Exploratory proteomic analysis of sputum supernatants and transcriptomic analysis of bronchial brushings, biopsies and sputum cells was performed...
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
#7
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/29649887/clinical-effect-of-endoscopic-vidian-neurectomy-on-bronchial-asthma-outcomes-in-patients-with-coexisting-refractory-allergic-rhinitis-and-asthma
#8
Jingang Ai, Zuozhong Xie, Xiang Qing, Wei Li, Honghui Liu, Tiansheng Wang, Guolin Tan
Background The prevalence of both allergic rhinitis and bronchial asthma is high throughout the world; their mutual influence on each other has been documented in many studies. However, studies regarding surgical intervention are limited. Objective To evaluate the clinical significance of endoscopic vidian neurectomy on bronchial asthma outcomes in patients with coexisting refractory allergic rhinitis and asthma. Methods A total of 109 patients with moderate to severe persistent intractable allergic rhinitis and mild/moderate asthma were allocated to the bilateral endoscopic vidian neurectomy group (group 1) or conservative medication group (group 2) according to the patients' self-selection...
January 1, 2018: American Journal of Rhinology & Allergy
https://www.readbyqxmd.com/read/29644894/decreased-epithelial-and-sputum-mir-221-3p-associates-with-airway-eosinophilic-inflammation-and-cxcl17-expression-in-asthma
#9
Kan Zhang, Yuxia Liang, Yuchen Feng, Wenliang Wu, Huilan Zhang, Jianguo He, Qinghua Hu, Jian-Ping Zhao, Yongjian Xu, Zheng Liu, Guohua Zhen
Airway eosinophilic inflammation is a key feature of type 2-high asthma. The role of epithelial miRNA in airway eosinophilic inflammation remains unclear. We examined the expression of miR-221-3p in bronchial brushings, induced sputum and plasma from 77 symptomatic, recently diagnosed steroid-naïve subjects with asthma and 36 healthy controls by quantitative PCR, and analyzed the correlation between miR-221-3p expression and airway eosinophilia. We found that epithelial, sputum and plasma miR-221-3p expression was significantly decreased in subjects with asthma...
April 12, 2018: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/29643544/-bronchial-adenoid-cystic-carcinoma-masquerading-as-bronchial-asthma-a-case-report
#10
M Lu, M Wang, X Zhu, Y H Chen, W Z Yao
Here we reported a case of bronchial adenoid cystic carcinoma from Peking University Third Hospital. A 40-year-old female presented with dry cough for 1 year and nocturnal paroxysmal attacks of wheezing for 4 months. She was a non-smoker, and did not have past histories of asthma or allergy. On physical examination, no stridor, wheezing and cyanosis were present and the general appearance was good. The results of the laboratory analysis, including blood eosinophils count, immunoglobulin E level and chest X-ray were normal...
April 18, 2018: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/29642688/samter-s-triad-state-of-the-art
#11
Sung-Dong Kim, Kyu-Sup Cho
Samter's triad (ST) is a well-known disease characterized by the triad of bronchial asthma, nasal polyps, and aspirin intolerance. Over the past few years, a rapid development in the knowledge of the pathogenesis and clinical characteristics of ST has happened. The aim of this paper is to review the recent investigations on the pathophysiological mechanisms and genetic background, diagnosis, and different therapeutic options of ST to advance our understanding of the mechanism and the therapeutic control of ST...
April 13, 2018: Clinical and Experimental Otorhinolaryngology
https://www.readbyqxmd.com/read/29629494/cold-stimuli-facilitate-inflammatory-responses-through-transient-receptor-potential-melastatin-8-trpm8-in-primary-airway-epithelial-cells-of-asthmatic-mice
#12
Haipei Liu, Li Hua, Quanhua Liu, Jun Pan, Yixiao Bao
Bronchial asthma is a chronic inflammatory airway disease that can be aggravated by cold air. However, its mechanism remains largely unknown. As a thermo-sensing cation channel, transient receptor potential melastatin 8 (TRPM8) can be activated by cold stimuli (8-22 °C) and cooling agents. Whereas TRPM8 activation leads to enhanced expression of inflammatory cytokines and mucus hypersecretion in human bronchial epithelial cell lines, no previous study has examined its role in regulating the cold-induced inflammatory responses and its mechanism in asthmatic airway epithelium...
April 9, 2018: Inflammation
https://www.readbyqxmd.com/read/29628047/increased-expression-of-cyslt-2-receptors-in-the-lung-of-asthmatic-mice-and-role-in-allergic-responses
#13
Masaya Matsuda, Yuki Tabuchi, Kazuma Nishimura, Yuri Nakamura, Tomohiko Sekioka, Michiaki Kadode, Kazuhito Kawabata, Takeshi Nabe
Compared with CysLT1 receptors, the functional role of CysLT2 receptors in asthma has not been clarified. The purpose of this study was to determine 1) whether CysLT2 receptors are expressed in the lung of mice and if expression increases in asthmatic mice, and 2) whether CysLT2 receptors are involved in allergic leukocyte infiltration into the lung and in the development of airway remodeling in asthmatic mice. BALB/c mice were sensitized with ovalbumin (OVA) + Al(OH)3 , and intratracheally challenged with OVA 4 times...
April 2018: Prostaglandins, Leukotrienes, and Essential Fatty Acids
https://www.readbyqxmd.com/read/29627118/alveolar-and-bronchial-nitric-oxide-in-chronic-obstructive-pulmonary-disease-and-asthma-copd-overlap
#14
Bernardino Alcázar-Navarrete, Francisca Castellano Miñán, Pablo Santiago Díaz, Oliveiro Ruiz Rodríguez, Pedro J Romero Palacios
INTRODUCTION: Exhaled nitric oxide (FENO ) measurements differentiate COPD phenotypes from asthma-COPD overlap (ACO). To date, no study has been conducted to determine whether alveolar and bronchial components differ in this group of patients. METHODS: This was an observational cross-sectional study recruiting ambulatory COPD patients. FENO was measured, differentiating alveolar (CANO ) from bronchial (JawNO ) components using a multiple-flow technique. CANO and JawNO values were compared between eosinophilic COPD patients (defined as ≥ 300 eosinophils/μL in peripheral blood test, or ≥ 2% eosinophils or ≥ 3% eosinophils), and a linear regression analysis was performed to determine clinical and biological variables related to these measurements...
April 4, 2018: Archivos de Bronconeumología
https://www.readbyqxmd.com/read/29626547/repurposing-excipients-as-active-inhalation-agents-the-mannitol-story
#15
Sandra D Anderson, Evangelia Daviskas, John D Brannan, Hak Kim Chan
The story of how we came to use inhaled mannitol to diagnose asthma and to treat cystic fibrosis began when we were looking for a surrogate for exercise as a stimulus to identify asthma. We had proposed that exercise-induced asthma was caused by an increase in osmolarity of the periciliary fluid. We found hypertonic saline to be a surrogate for exercise but an ultrasonic nebuliser was required. We produced a dry powder of sodium chloride but it proved unstable. We developed a spray dried preparation of mannitol and found that bronchial responsiveness to inhaling mannitol identified people with currently active asthma...
April 4, 2018: Advanced Drug Delivery Reviews
https://www.readbyqxmd.com/read/29621415/mutual-regulation-between-mir-21-and-the-tgf%C3%AE-smad-signaling-pathway-in-human-bronchial-fibroblasts-promotes-airway-remodeling
#16
Zhi-Wei Yu, Ya-Qin Xu, Xiao-Juan Zhang, Jian-Rong Pan, Hong-Xia Xiang, Xiao-Hong Gu, Shan-Bao Ji, Jun Qian
OBJECTIVE: Airway remodeling is an important pathological feature of asthma. Excessive deposition of extracellular matrix (e.g., collagen) secreted from fibroblasts is a major factor contributing to airway remodeling. Currently, the mechanism by which collagen continues to be oversynthesized in the airway remains unclear. In this study, we investigated the role of the microRNA-21 (miR-21) and TGFβ/Smad signaling pathway in human bronchial fibroblasts (HBFs), and explored the regulatory mechanism of airway remodeling...
April 5, 2018: Journal of Asthma: Official Journal of the Association for the Care of Asthma
https://www.readbyqxmd.com/read/29618952/role-of-genetic-variations-of-chitinase-3-like-1-in-bronchial-asthmatic-patients
#17
Kazuyuki Abe, Yutaka Nakamura, Kohei Yamauchi, Makoto Maemondo
Background: Single nucleotide polymorphisms (SNPs) in chitinase 3 - like 1 ( CHI3L1 ) are associated with bronchial severity and pulmonary function. CHI3L1 proteins are involved in both innate and adaptive immune responses; however, to date, the correlation of these SNPs and their age of onset of bronchial asthma has not been demonstrated. Methods: To address the role of these genetic variations, 390 patients with well-controlled bronchial asthma and living in Japan were recruited, genotyped, and had a pulmonary function test performed on them in this study...
2018: Clinical and Molecular Allergy: CMA
https://www.readbyqxmd.com/read/29611767/impulse-oscillometry-and-nitrogen-washout-test-in-the-assessment-of-small-airway-dysfunction-in-asthma-correlation-with-quantitative-computed-tomography
#18
Leonello Fuso, Giuseppe Macis, Carola Condoluci, Martina Sbarra, Chiara Contu, Emanuele G Conte, Giulia Angeletti, Paolo Montuschi
OBJECTIVE: Small airway dysfunction (SAD) and airway remodeling influence the disease control and progression in asthma. We investigated whether impulse oscillometry (IOS) and single breath nitrogen washout (SBN2 W) could be reliable tests in evaluating SAD and airway remodeling by correlating their data with radiological parameters derived from quantitative chest multidetector computed tomography (MDCT) imaging. METHODS: Lung function tests were performed before and after bronchodilator...
April 3, 2018: Journal of Asthma: Official Journal of the Association for the Care of Asthma
https://www.readbyqxmd.com/read/29608006/-evaluation-of-the-association-between-topical-prostaglandin-f2%C3%AE-analogs-and-asthma-using-the-jader-database-comparison-with-%C3%AE-blockers
#19
Katsuhiro Ohyama, Munetoshi Sugiura
 Prostaglandin F2α (PGF2α) analog formulations are the most commonly used drugs for glaucoma treatment. They are known to be superior to β-blockers for reducing intraocular pressure and can be effective all through the day. Because of the action, topical β-blockers are contraindicated for patients with bronchial asthma. PGF2α is also known to act as a constrictor of the respiratory tract. The present study aims to analyze the relationship between PGF2α analogs and asthma. In addition, we utilized β-blockers and combined formulations of both contents to evaluate for comparison with PGF2α analogs...
2018: Yakugaku Zasshi: Journal of the Pharmaceutical Society of Japan
https://www.readbyqxmd.com/read/29605202/can-the-ceramic-industry-be-a-new-and-hazardous-sector-for-work-related-asthma
#20
Ozlem Kar Kurt, Dilek Ergun, Nursen Basaran
BACKGROUND: Work-related asthma (WRA) constitutes a significant proportion of all asthma cases and continues to be reported from different industries. The aim of the study was to identify the occupations that can be related to WRA and diagnostic steps used in suspected WRA patients. METHODS: We retrospectively reviewed the clinical records of WRA suspected patients who were referred to Ankara Occupational and Environmental Diseases Hospital, Turkey from January 2015 to January 2017...
April 2018: Respiratory Medicine
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