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https://www.readbyqxmd.com/read/29156258/developing-an-online-tool-for-identifying-at-risk-populations-to-wildfire-smoke-hazards
#1
Ambarish Vaidyanathan, Fuyuen Yip, Paul Garbe
Wildfire episodes pose a significant public health threat in the United States. Adverse health impacts associated with wildfires occur near the burn area as well as in places far downwind due to wildfire smoke exposures. Health effects associated with exposure to particulate matter arising from wildfires can range from mild eye and respiratory tract irritation to more serious outcomes such as asthma exacerbation, bronchitis, and decreased lung function. Real-time operational forecasts of wildfire smoke concentrations are available but they are not readily integrated with information on vulnerable populations necessary to identify at-risk communities during wildfire smoke episodes...
November 16, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29154202/polymorphisms-in-inflammasome-genes-and-risk-of-asthma-in-brazilian-children
#2
Vinicius Nunes Cordeiro Leal, Isabel Rugue Genov, Márcia C Mallozi, Dirceu Solé, Alessandra Pontillo
Considering its role in inflammation and recently described "alternative" roles in epithelial homeostasis and Th1/Th2 balance, we hypothesize that inflammasome genetics could contribute to the development of asthma. Selected functional polymorphisms in inflammasome genes are evaluated in a cohort of asthmatic children and their families. Gain-of-function NLRP1 variants rs11651270, rs12150220 and rs2670660 resulted significantly associated to asthma in trios (TDT) analysis; and rs11651270 and rs2670660 also with asthma severity and total IgE level in asthmatic children...
November 15, 2017: Molecular Immunology
https://www.readbyqxmd.com/read/29153413/an-objective-evaluation-of-nocturnal-cough-count-and-cough-pattern-in-children-with-psychogenic-cough
#3
Eri Imai, Kota Hirai, Yoshiko Mikami, Mariko Nukaga, Mayumi Enseki, Hideyuki Tabata, Masahiko Kato, Hiroyuki Mochizuki
Two patients with a chronic, barking cough were diagnosed with psychogenic cough. Using an original cough counter we studied the nocturnal cough count and pattern. While the number of coughs when awake was extremely high for both patients, the number of coughs was remarkably reduced during sleep, similar to an exacerbation of asthma. Moreover, the properties of the coughs when awake were clearly different from those of coughs during sleep. In conclusion, an objective examination using a cough counter was useful for the diagnosis, treatment and management of psychogenic cough...
November 2017: Respiratory Investigation
https://www.readbyqxmd.com/read/29153065/-genotypes-of-rhinoviruses-in-children-and-adults-patients-with-acute-respiratory-tract-infections
#4
Eda Demirkan, Sevin Kırdar, Emel Ceylan, Ayşe Yenigün, İmran Kurt Ömürlü
Rhinovirus (RV) is one of the most frequent causative agent of acute respiratory tract infections in the world. The virus may cause a mild cold, as well as more serious clinical symptoms in patients with immune system deficiency or comorbidities. Rhinoviruses have been identified by molecular methods under three types: RV-A, RV-B and RV-C. In most of the cases, it was reported that RV-A and RV-C were related with lower respiratory tract infections and asthma exacerbations, while RV-B was rarely reported in lower respiratory tract infections...
October 2017: Mikrobiyoloji Bülteni
https://www.readbyqxmd.com/read/29152777/evidence-synthesis-from-aggregate-recurrent-event-data-for-clinical-trial-design-and-analysis
#5
Björn Holzhauer, Craig Wang, Heinz Schmidli
Information from historical trials is important for the design, interim monitoring, analysis, and interpretation of clinical trials. Meta-analytic models can be used to synthesize the evidence from historical data, which are often only available in aggregate form. We consider evidence synthesis methods for trials with recurrent event endpoints, which are common in many therapeutic areas. Such endpoints are typically analyzed by negative binomial regression. However, the individual patient data necessary to fit such a model are usually unavailable for historical trials reported in the medical literature...
November 20, 2017: Statistics in Medicine
https://www.readbyqxmd.com/read/29150353/barrier-dysfunction-in-the-nasal-allergy
#6
REVIEW
Ayumi Fukuoka, Tomohiro Yoshimoto
Epithelial cells form the first physiological barrier against invasion by pathogens and the infiltration of allergens. Tight junctions (TJ), a cell-cell junctional complex located on the apical side of epithelial cells, have a critical role in the maintenance of epithelial barrier function. Impaired TJ structures are observed in patients with asthma, atopic dermatitis and nasal allergy; therefore, the dysfunction of epithelial barriers might be involved in the initiation or progression of allergic diseases...
November 14, 2017: Allergology International: Official Journal of the Japanese Society of Allergology
https://www.readbyqxmd.com/read/29149416/history-of-histamine-releasing-factor-hrf-translationally-controlled-tumor-protein-tctp-including-a-potential-therapeutic-target-in-asthma-and-allergy
#7
Susan M MacDonald
Histamine-releasing factor (HRF) also known as translationally controlled tumor protein (TCTP) is a highly conserved, ubiquitous protein that has both intracellular and extracellular functions. Here we will highlight the subcloning of the molecule, its clinical implications, as well as an inducible-transgenic mouse. Particular attention will be paid to its extracellular functioning and its potential role as a therapeutic target in asthma and allergy. The cells and the cytokines that are produced when stimulated or primed by HRF/TCTP will be detailed as well as the downstream signaling pathway that HRF/TCTP elicits...
2017: Results and Problems in Cell Differentiation
https://www.readbyqxmd.com/read/29149273/the-efficacy-and-safety-of-bronchial-thermoplasty-in-severe-persistent-asthma-on-extended-follow-up
#8
A O'Reilly, I Browne, D Watchorn, J J Egan, S Lane
Background: Asthma is a common condition and there remains a subset of patients who are poorly controlled on maximal therapy. Bronchial thermoplasty is a bronchoscopic therapy using radio frequency energy to reduce airway smooth muscle which has been shown to improve asthma control although further evidence regarding long term efficacy and safety is required. Aim: We aimed to demonstrate safety and efficacy of bronchial thermoplasty on extended follow up. Our initial experience with this group was previously reported in 2016 where patients were shown to have a significant improvement in Asthma Control Test (ACT) scores 1 year post treatment8...
November 15, 2017: QJM: Monthly Journal of the Association of Physicians
https://www.readbyqxmd.com/read/29148205/inhaled-corticosteroids-and-the-risks-of-low-energy-fractures-in-patients-with-chronic-airway-diseases-a-propensity-score-matched-study
#9
Chun-Hao Tsai, Lin-Yu Laio, Cheng-Li Lin, Wei-Sheng Chung
BACKGROUND AND AIMS: Inhaled corticosteroids (ICSs) are crucial anti-inflammatory medications for chronic airway diseases. Studies investigating the relationship between ICSs and fractures in Asian populations are scant. We investigated whether ICSs increased the risk of low-energy fractures in patients with chronic airway diseases. METHODS: We used the Longitudinal Health Insurance Database to select patients aged 20 years and older with chronic airway diseases (asthma and COPD) between 2000 and 2011 as the base cohort...
November 17, 2017: Clinical Respiratory Journal
https://www.readbyqxmd.com/read/29146574/mast-cell-dependent-il-33-st2-signaling-is-protective-against-the-development-of-airway-hyperresponsiveness-in-a-house-dust-mite-mouse-model-of-asthma
#10
Anna Maria Zoltowska Nilsson, Ying Lei, Mikael Adner, Gunnar P Nilsson
Interleukin-33 (IL-33) and its receptor ST2 have been influentially associated to the pathophysiology of asthma. Due to the divergent roles of IL-33 in regulating mast cell functions, there is a need to further characterize IL-33/ST2-dependent mast cell responses and their significance in the context of asthma. This study aimed to investigate how IL-33/ST2-dependent mast cell responses contribute to the development of airway hyperresponsiveness (AHR) and airway inflammation in a mouse model of house dust mite (HDM) induced asthma...
November 16, 2017: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/29146272/obstruction-phenotype-as-a-predictor-of-asthma-severity-and-instability-in-children
#11
Ronald L Sorkness, Edward M Zoratti, Meyer Kattan, Peter J Gergen, Michael D Evans, Cynthia M Visness, Michelle Gill, Gurjit K Khurana Hershey, Carolyn M Kercsmar, Andrew H Liu, George T O'Connor, Jacqueline A Pongracic, Dinesh Pillai, Christine A Sorkness, Alkis Togias, Robert A Wood, William W Busse
BACKGROUND: Small airways instability, resulting in premature airway closure, has been recognized as a risk for asthma severity and poor control. Although spirometry has limited sensitivity for detecting small airway dysfunction, a focus on the air-trapping component of obstruction may identify a risk factor for asthma instability. OBJECTIVE: To use spirometric measurements to identify patterns of airway obstruction in children, and define obstruction phenotypes that relate to asthma instability...
November 13, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/29143982/tweak-fn14-interaction-induces-proliferation-and-migration-in-human-airway-smooth-muscle-cells-via-activating-the-nf-%C3%AE%C2%BAb-pathway
#12
Cuimin Zhu, Leguo Zhang, Zhiming Liu, Chen Li, Yajie Bai
Asthma, an increasingly common chronic disease among children, are characterized by airway remodeling, which is partly attributed to the proliferation and migration of airway smooth muscle cell (ASMC). The purpose of the present study was to investigate potential roles and mechanisms of the tumor necrosis factor-like weak inducer of apoptosis (TWEAK)/fibroblast growth factor-inducible molecule 14 (Fn14) axis on cell proliferation and migration in HASMCs. Compared to HASMCs from non-asthmatic patients, those from asthmatic patients showed elevated expression levels of both Fn14 and TWEAK...
November 16, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29138554/characteristics-of-copd-patients-according-to-gold-classification-and-clinical-phenotypes-in-the-russian-federation-the-support-trial
#13
Vladimir Arkhipov, Daria Arkhipova, Marc Miravitlles, Andrey Lazarev, Ekaterina Stukalina
Background: The high prevalence of COPD in the Russian Federation has been demonstrated in several epidemiological studies. However, there are still no data on the clinical characteristics of these patients according to Global Initiative for Chronic Obstructive Lung Disease (GOLD) groups and phenotypes, which could provide additional understanding of the burden of COPD, routine clinical practice, and ways to improve the treatment of patients with COPD in Russia. Patients and methods: SUPPORT was an observational multicenter study designed to obtain data about the distribution of patients with previously diagnosed COPD according to the severity of bronchial obstruction, symptom severity, risk of exacerbation, COPD phenotypes, and treatment of COPD...
2017: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/29137905/emergency-department-chest-radiography-for-children-with-asthma-exacerbation-is-infrequently-associated-with-change-of-management
#14
Evan H Allie, Henry E Dingle, William N Johnson, Jeffrey R Birnbaum, Melissa A Hilmes, Sudha P Singh, Donald H Arnold
BACKGROUND: Acute asthma exacerbations (AAE) account for many Pediatric Emergency Department (PED) visits. Chest radiography (CXR) is often performed in these patients to identify practice-changing findings such as pneumonia (PNA). Limited knowledge exists to balance the cost and radiation dose of CXR with expected yield of clinically meaningful information. OBJECTIVE: To determine in children with AAE with CXR, whether patient characteristics are associated with radiographic PNA; and significant practice change by initiation of antibiotic...
October 6, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/29137638/virus-triggered-exacerbation-in-allergic-asthmatic-children-neutrophilic-airway-inflammation-and-alteration-of-virus-sensors-characterize-a-subgroup-of-patients
#15
Antoine Deschildre, Muriel Pichavant, Ilka Engelmann, Carole Langlois, Elodie Drumez, Guillaume Pouessel, Sophie Boileau, David Romero-Cubero, Irina Decleyre-Badiu, Anny Dewilde, Didier Hober, Véronique Néve, Caroline Thumerelle, Stéphanie Lejeune, Clémence Mordacq, Philippe Gosset
BACKGROUND: Viruses are important triggers of asthma exacerbations. They are also detected outside of exacerbation. Alteration of anti-viral response in asthmatic patients has been shown although the mechanisms responsible for this defect remain unclear. The objective of this study was to compare in virus-infected and not-infected allergic asthmatic children, aged 6 to 16 years, admitted to hospital for a severe exacerbation, the innate immune response and especially the expression of pattern recognition receptor (PRR) and their function...
November 14, 2017: Respiratory Research
https://www.readbyqxmd.com/read/29137124/asthmatic-patients-with-vitamin-d-deficiency-have-decreased-exacerbations-after-vitamin-replacement
#16
Paolo Solidoro, Michela Bellocchia, Ilaria Aredano, Alessio Mattei, Emanuele Pivetta, Filippo Patrucco, Monica Boita, Francesca de Blasio, Luisa Brussino, Giovanni Rolla, Caterina Bucca
BACKGROUND: Intervention studies with vitamin D in asthma are inconclusive for several reasons, such as inadequate dosing or duration of supplementation or uncontrolled baseline vitamin D status. Our aim was to evaluate the benefit of long term vitamin D add-on in asthmatic patients with actual vitamin D deficiency, that is a serum 25-hydroxy vitamin D (25-OHD ) below 20 ng/mL. METHODS: Serum 25-OHD, asthma exacerbations, spirometry and inhaled corticosteroids (CS) dose were evaluated in a cohort of 119 asthmatic patients...
November 11, 2017: Nutrients
https://www.readbyqxmd.com/read/29133219/dietary-fatty-acid-modification-for-the-treatment-of-aspirin-exacerbated-respiratory-disease-a-prospective-pilot-trial
#17
Thomas R Schneider, Christina B Johns, Marina L Palumbo, Katherine C Murphy, Katherine N Cahill, Tanya M Laidlaw
BACKGROUND: The high levels of eicosanoid production and the clinical efficacy of leukotriene-modifying pharmacotherapies for patients with aspirin-exacerbated respiratory disease (AERD) suggest that other interventions targeting arachidonic acid dysregulation may also improve disease control. OBJECTIVE: To assess the utility of a high omega-3/low omega-6 diet for the treatment of AERD. METHODS: Prospective, nonblinded dietary intervention in 10 adult patients with AERD at Brigham and Women's Hospital in Boston, MA...
November 10, 2017: Journal of Allergy and Clinical Immunology in Practice
https://www.readbyqxmd.com/read/29129582/ventilation-defect-percent-in-helium-3-mri-as-a-biomarker-of-severe-outcomes-in-asthma
#18
David G Mummy, Stanley J Kruger, Wei Zha, Ronald L Sorkness, Nizar N Jarjour, Mark L Schiebler, Loren C Denlinger, Michael D Evans, Sean B Fain
Ventilation defect percent (VDP) measured in asthmatics with hyperpolarized helium-3 MRI was more strongly associated with ED visits and hospitalizations due to asthma exacerbation than were conventional biomarkers of lung function and inflammation.
November 9, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/29128192/efficacy-and-safety-of-benralizumab-in-japanese-patients-with-severe-uncontrolled-eosinophilic-asthma
#19
Ken Ohta, Mitsuru Adachi, Yuji Tohda, Tadashi Kamei, Motokazu Kato, J Mark Fitzgerald, Masayuki Takanuma, Tadahiro Kakuno, Nobuyuki Imai, Yanping Wu, Magnus Aurivillius, Mitchell Goldman
BACKGROUND: In the Phase III CALIMA trial, benralizumab significantly reduced asthma exacerbations, increased lung function, and alleviated symptoms for patients with severe, uncontrolled eosinophilic asthma. The aim of this subgroup analysis was to evaluate the efficacy and safety of benralizumab for Japanese patients in the CALIMA trial. METHODS: CALIMA was a randomised, controlled trial of 1306 patients (aged 12-75 years; registered at ClinicalTrials.gov: NCT01914757) with severe asthma uncontrolled by medium- to high-dosage inhaled corticosteroids and long-acting β2-agonists (ICS/LABA)...
November 8, 2017: Allergology International: Official Journal of the Japanese Society of Allergology
https://www.readbyqxmd.com/read/29127573/eosinophilic-granulomatosis-with-polyangiitis-complicated-by-subarachnoid-hemorrhage-and-coronary-vasculitis-a-case-report-and-review-of-the-literature
#20
REVIEW
Shogo Matsuda, Shuzo Yoshida, Youhei Fujiki, Hidetoshi Satomi, Tohru Takeuchi, Yoshinobu Hirose, Shigeki Makino, Shigeki Arawaka
Eosinophilic granulomatosis with polyangiitis (EGPA) is characterized by necrotizing vasculitis of small-sized vessels with extravascular granulomas and eosinophilic infiltration. The case of a 48-year-old Japanese woman with EGPA, who presented concurrently with subarachnoid hemorrhage (SAH) and coronary vasculitis, is reported. She initially presented with bronchial asthma, and then 8 months later she developed various symptoms caused by systemic eosinophilic vasculitis and was admitted to our hospital. Three days after admission, she started oral corticosteroid therapy, and her 2009 Five-Factor Score (FFS) was 0...
November 10, 2017: Rheumatology International
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