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Asthma exacerbations

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https://www.readbyqxmd.com/read/27923549/assessing-the-value-of-mepolizumab-for-severe-eosinophilic-asthma-a-cost-effectiveness-analysis
#1
Melanie D Whittington, R Brett McQueen, Daniel A Ollendorf, Jeffrey A Tice, Richard H Chapman, Steven D Pearson, Jonathan D Campbell
BACKGROUND: Adding mepolizumab to standard treatment with inhaled corticosteroids and controller medications could decrease asthma exacerbations and use of long-term oral steroids in patients with severe disease and increased eosinophils; however, mepolizumab is costly and its cost effectiveness is unknown. OBJECTIVE: To estimate the cost effectiveness of mepolizumab. METHODS: A Markov model was used to determine the incremental cost per quality-adjusted life year (QALY) gained for mepolizumab plus standard of care (SoC) and for SoC alone...
December 3, 2016: Annals of Allergy, Asthma & Immunology
https://www.readbyqxmd.com/read/27919164/differences-in-allergic-inflammatory-responses-in-murine-lungs-comparison-of-pm2-5-and-coarse-pm-collected-during-the-hazy-events-in-a-chinese-city
#2
Miao He, Takamichi Ichinose, Seiichi Yoshida, Fumiko Shiba, Keiichi Arashidani, Hirohisa Takano, Guifan Sun, Takayuki Shibamoto
Urban particulate matter (PM) is associated with an increase in asthma. PM2.5 (<PM2.5 μm) and coarse PM (CPM: PM2.5-PM10 μm) were collected from the air in a Chinese city during haze events. The amounts of polycyclic aromatic hydrocarbons (PAHs) were higher in PM2.5 than in CPM. Conversely, microbial elements LPS and β-glucan were much higher in CPM than in PM2.5. Concentrations of Si, Al, Fe, and Ti in CPM were greater than in PM2.5, while Pb, Cu and As concentrations were lower than in PM2.5. When RAW264...
December 5, 2016: Inhalation Toxicology
https://www.readbyqxmd.com/read/27916618/perceived-discrimination-associated-with-asthma-and-related-outcomes-in-minority-youth-the-gala-ii-and-sage-ii-studies
#3
Neeta Thakur, Nicolas E Barcelo, Luisa N Borrell, Smriti Singh, Celeste Eng, Adam Davis, Kelley Meade, Michael A LeNoir, Pedro C Avila, Harold J Farber, Denise Serebrisky, Emerita Brigino-Buenaventura, William Rodriguez-Cintron, Shannon Thyne, Jose R Rodriguez-Santana, Saunak Sen, Kirsten Bibbins-Domingo, Esteban Gonzalez Burchard
BACKGROUND: Asthma disproportionately affects minority populations and is associated with psychosocial stress, such as racial/ethnic discrimination. We aim to examine the association of perceived discrimination with having asthma and poor asthma control in African American and Latino youth. METHODS: We included African American (n=954), Mexican American (n=1086), other Latino (n=522), and Puerto Rican Islander (n=1025) youth (aged 8 to 21 years old) from the GALA II and SAGE II studies...
December 1, 2016: Chest
https://www.readbyqxmd.com/read/27916086/-recombinant-adenovirus-type-5-does-not-aggravate-asthma-symptoms-in-a-mouse-model-of-ovalbumin-induced-asthma
#4
Zhengling Zhang, Yiling Zhang, Jing Han, Ping Lu, Lin Xu
Objective To explore the effect of recombinant adenovirus type 5 (rAd5) on a mouse model of ovalbumin (OVA)-induced asthma. Methods Sixty female C57BL/6 mice (6-8 weeks old and 18-20 g) were randomly divided into 4 groups: healthy control group, rAd5 control group, OVA asthma control group and OVA asthma group with rAd5 immunization. 15 mice in each group. The mice in the OVA asthma control group and the OVA asthma group with rAd5 immunization were sensitized by intraperitoneal injection of 50 μg OVA emulsified in 2 mg of aluminum potassium sulfate on day 0, 7 and 14; subsequently, the mice in the two groups were exposed to OVA aerosol challenge for 3 consecutive days (on day 42, 43 and 44)...
December 2016: Xi Bao Yu Fen Zi Mian Yi Xue za Zhi, Chinese Journal of Cellular and Molecular Immunology
https://www.readbyqxmd.com/read/27912982/should-recommendations-about-starting-inhaled-corticosteroid-treatment-for-mild-asthma-be-based-on-symptom-frequency-a-post-hoc-efficacy-analysis-of-the-start-study
#5
Helen K Reddel, William W Busse, Søren Pedersen, Wan C Tan, Yu-Zhi Chen, Carin Jorup, Dan Lythgoe, Paul M O'Byrne
BACKGROUND: Low-dose inhaled corticosteroids (ICS) are highly effective for reducing asthma exacerbations and mortality. Conventionally, ICS treatment is recommended for patients with symptoms on more than 2 days per week, but this criterion has scant evidence. We aimed to assess the validity of the previous symptom-based cutoff for starting ICS by establishing whether there was a differential response to budesonide versus placebo for severe asthma exacerbations, lung function, and asthma symptom control across subgroups identified by baseline asthma symptom frequency...
November 29, 2016: Lancet
https://www.readbyqxmd.com/read/27909740/clinical-pharmacokinetics-of-magnesium-sulfate-in-the-treatment-of-children-with-severe-acute-asthma
#6
Joseph E Rower, Xiaoxi Liu, Tian Yu, Michael Mundorff, Catherine M T Sherwin, Michael D Johnson
PURPOSE: Intravenous (IV) magnesium sulfate (MgSO4) is used as adjunct therapy to treat acute asthma exacerbations. Despite its clinical use, there is a limited understanding of the disposition of magnesium in children. METHODS: To explore the pharmacokinetics (PK) of IV MgSO4 in this population, we collected retrospective data from 54 children who received IV MgSO4 for treatment of an acute asthma exacerbation at Primary Children's Hospital in Salt Lake City, UT...
December 2, 2016: European Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/27906909/asthma-among-employed-adults-by-industry-and-occupation-21-states-2013
#7
Katelynn E Dodd, Jacek M Mazurek
Workers in various industries and occupations are at risk for work-related asthma* (1). Data from the 2006-2007 adult Behavioral Risk Factor Surveillance System (BRFSS) Asthma Call-back Survey (ACBS), an in-depth asthma survey conducted with respondents who report an asthma diagnosis, from 33 states indicated that up to 48% of adult current asthma might be related to work and could therefore potentially be prevented (2). Identification of the industries and occupations with increased prevalence of asthma might inform work-related asthma intervention and prevention efforts...
December 2, 2016: MMWR. Morbidity and Mortality Weekly Report
https://www.readbyqxmd.com/read/27906698/ige-and-eosinophils-as-therapeutic-targets-in-asthma
#8
Tanvi R Patel, Sanjiv Sur
PURPOSE OF REVIEW: Asthma is a chronic inflammatory disorder characterized by reversible airflow obstruction, which is being more widely recognized as a broad-spectrum disease that encompasses multiple patient characteristics and pathophysiologic mechanisms. Suboptimal asthma control leads to increasing burden of healthcare costs and loss of productivity to society. Biologic therapies targeted at IgE and eosinophils can be used in poorly controlled allergic and eosinophilic asthma, respectively...
November 30, 2016: Current Opinion in Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/27905186/severe-asthma-current-management-targeted-therapies-and-future-directions-a-roundtable-report
#9
REVIEW
Vanessa M McDonald, Steven Maltby, Helen K Reddel, Gregory G King, Peter A B Wark, Lorraine Smith, John W Upham, Alan L James, Guy B Marks, Peter G Gibson
Asthma is a chronic respiratory disease characterized by respiratory symptoms, airway inflammation, airway obstruction and airway hyper-responsiveness. Asthma is common and directly affects 10% of Australians, 1-5% of adults in Asia and 300 million people worldwide. It is a heterogeneous disorder with many clinical, molecular, biological and pathophysiological phenotypes. Current management strategies successfully treat the majority of patients with asthma who have access to them. However, there is a subset of an estimated 5-10% of patients with asthma who have severe disease and are disproportionately impacted by symptoms, exacerbations and overall illness burden...
November 30, 2016: Respirology: Official Journal of the Asian Pacific Society of Respirology
https://www.readbyqxmd.com/read/27903593/respiratory-syncytial-virus-infection-detection-and-new-options-for-prevention-and-treatment
#10
REVIEW
Cameron Griffiths, Steven J Drews, David J Marchant
Respiratory syncytial virus (RSV) infection is a significant cause of hospitalization of children in North America and one of the leading causes of death of infants less than 1 year of age worldwide, second only to malaria. Despite its global impact on human health, there are relatively few therapeutic options available to prevent or treat RSV infection. Paradoxically, there is a very large volume of information that is constantly being refined on RSV replication, the mechanisms of RSV-induced pathology, and community transmission...
January 2017: Clinical Microbiology Reviews
https://www.readbyqxmd.com/read/27898693/a-comparison-between-temperature-controlled-laminar-airflow-device-and-a-room-air-cleaner-in-reducing-exposure-to-particles-while-asleep
#11
Michal P Spilak, Torben Sigsgaard, Hisamitsu Takai, Guoqiang Zhang
People spend approximately one third of their life sleeping. Exposure to pollutants in the sleep environment often leads to a variety of adverse health effects, such as development and exacerbation of asthma. Avoiding exposure to these pollutants by providing a sufficient air quality in the sleep environment might be a feasible method to alleviate these health symptoms. We performed full-scale laboratory measurements using a thermal manikin positioned on an experimental bed. Three ventilation settings were tested: with no filtration system operated, use of portable air cleaner and use of a temperature-controlled laminar airflow (TLA) device...
2016: PloS One
https://www.readbyqxmd.com/read/27896984/methods-for-clustering-time-series-data-acquired-from-mobile-health-apps
#12
Nicole Tignor, Pei Wang, Nicholas Genes, Linda Rogers, Steven G Hershman, Erick R Scott, Micol Zweig, Yu-Feng Yvonne Chan, Eric E Schadt
In our recent Asthma Mobile Health Study (AMHS), thousands of asthma patients across the country contributed medical data through the iPhone Asthma Health App on a daily basis for an extended period of time. The collected data included daily self-reported asthma symptoms, symptom triggers, and real time geographic location information. The AMHS is just one of many studies occurring in the context of now many thousands of mobile health apps aimed at improving wellness and better managing chronic disease conditions, leveraging the passive and active collection of data from mobile, handheld smart devices...
2016: Pacific Symposium on Biocomputing
https://www.readbyqxmd.com/read/27895690/rhinovirus-and-childhood-asthma-an-update
#13
REVIEW
Dae Jin Song
Asthma is recognized as a complex disease resulting from interactions between multiple genetic and environmental factors. Accumulating evidence suggests that respiratory viral infections in early life constitute a major environmental risk factor for the development of childhood asthma. Respiratory viral infections have also been recognized as the most common cause of asthma exacerbation. The advent of molecular diagnostics to detect respiratory viruses has provided new insights into the role of human rhinovirus (HRV) infections in the pathogenesis of asthma...
November 2016: Korean Journal of Pediatrics
https://www.readbyqxmd.com/read/27895126/versican-deficiency-significantly-reduces-lung-inflammatory-response-induced-by-polyinosine-polycytidylic-acid-stimulation
#14
Inkyung Kang, Ingrid A Harten, Mary Y Chang, Kathleen R Braun, Alyssa Sheih, Mary P Nivison, Pamela Y Johnson, Gail Workman, Gernot Kaber, Stephen P Evanko, Christina K Chan, Mervyn J Merrilees, Steven F Ziegler, Michael G Kinsella, Charles W Frevert, Thomas N Wight
Viral infection is an exacerbating factor contributing to chronic airway diseases such as asthma via mechanisms which are still unclear. Polyinosine-polycytidylic acid (poly I:C), a toll-like receptor (TLR) 3 agonist used as a mimetic to study viral infection, has been shown to elicit inflammatory responses in lungs and to exacerbate pulmonary allergic reactions in animal models. Previously, we have shown that poly I:C stimulates lung fibroblasts to accumulate an extracellular matrix (ECM), enriched in hyaluronan (HA) and its binding partner versican, which promotes monocyte adhesion...
November 28, 2016: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/27893943/peanut-allergy-anaphylaxis-adrenaline-and-exacerbations-of-asthma
#15
EDITORIAL
G Roberts
No abstract text is available yet for this article.
December 2016: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/27889361/adult-bronchiectasis-patients-a-first-look-at-the-united-states-bronchiectasis-research-registry
#16
Timothy R Aksamit, Anne E O'Donnell, Alan Barker, Kenneth N Olivier, Kevin L Winthrop, M Leigh Anne Daniels, Margaret Johnson, Edward Eden, David Griffith, Michael Knowles, Mark Metersky, Matthias Salathe, Byron Thomashow, Gregory Tino, Gerard Turino, Betsy Carretta, Charles L Daley
OBJECTIVE: We sought to describe the characteristics of adult bronchiectasis patients enrolled in the United States Bronchiectasis Research Registry (BRR). METHODS: The BRR is a database of non-cystic fibrosis bronchiectasis (NCFB) patients enrolled at 13 sites within the United States. Baseline demographic, spirometric, imaging, microbiologic, and therapeutic data were entered into a central web-based database. Patients were subsequently analyzed by the presence NTM...
November 23, 2016: Chest
https://www.readbyqxmd.com/read/27889330/use-of-biologics-to-treat-acute-exacerbations-and-manage-disease-in-asthma-copd-and-ipf
#17
REVIEW
Lynne A Murray, Chris Grainge, Peter A Wark, Darryl A Knight
A common feature of chronic respiratory disease is the progressive decline in lung function. The decline can be indolent, or it can be accelerated by acute exacerbations, whereby the patient experiences a pronounced worsening of disease symptoms. Moreover, acute exacerbations may also be a marker of insufficient disease management. The underlying cause of an acute exacerbation can be due to insults such as pathogens or environmental pollutants, or the cause can be unknown. For each acute exacerbation, the patient may require medical intervention such as rescue medication, or in more severe cases, hospitalization and ventilation and have an increased risk of death...
November 24, 2016: Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/27888992/il-17-protein-levels-in-both-induced-sputum-and-plasma-are-increased-in-stable-but-not-acute-asthma-individuals-with-obesity
#18
Jian-Hui Chen, Ling Qin, Ying-Ying Shi, Jun-Tao Feng, Yu-Long Zheng, Yu-Feng Wan, Chuan-Qin Xu, Xiao-Mei Yang, Cheng-Ping Hu
BACKGROUND: Obesity worsens asthma control partly through enhanced airway neutrophilia, altered lung mechanics and comorbidities, including obstructive sleep apnea syndrome, gastroesophageal reflux disease and depression. Although controversial, obesity may also cause poorer outcomes in acute asthma. IL-17 is associated with neutrophilic inflammation, steroid resistance and severe asthma, but its importance in the association between asthma and obesity is unknown. OBJECTIVE: To investigate the role of IL-17 in obese asthma in both acute and stable settings...
December 2016: Respiratory Medicine
https://www.readbyqxmd.com/read/27888917/aspirin-exacerbated-respiratory-disease
#19
REVIEW
Evan S Walgama, Peter H Hwang
Aspirin-exacerbated respiratory disease (AERD) is characterized by the triad of asthma, sinonasal polyposis, and aspirin intolerance. The hallmark of the disease is baseline overproduction of cysteinyl leukotrienes via the 5-lipoxygenase pathway, exacerbated by ingestion of aspirin. Patients with AERD have high rates of recidivistic polyposis following sinus surgery, although the improvement in quality of life following surgery is similar to aspirin-tolerant patients. The diagnosis is secured by a positive aspirin provocation test, usually administered by a medical allergist...
February 2017: Otolaryngologic Clinics of North America
https://www.readbyqxmd.com/read/27888031/comparison-of-treatment-modalities-for-inpatient-asthma-exacerbations-among-us-pediatric-hospitals
#20
Meredith A Dilley, William J Sheehan, Carter R Petty, Jonathan M Gaffin, Marissa Hauptman, Wanda Phipatanakul
No abstract text is available yet for this article.
November 22, 2016: Journal of Allergy and Clinical Immunology in Practice
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