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https://www.readbyqxmd.com/read/28441402/sex-discordance-in-asthma-and-wheeze-prevalence-in-two-longitudinal-cohorts
#1
Ryan Arathimos, Raquel Granell, John Henderson, Caroline L Relton, Kate Tilling
Sex discordance in asthma prevalence has been previously reported, with higher prevalence in males before puberty, and in females after puberty; the adolescent "switch". However, cross-sectional studies have suggested a narrowing of this discordance in recent decades. We used a combination of cross-sectional and longitudinal modelling to examine sex differences in asthma, wheeze and longitudinal wheezing phenotypes in two UK birth cohorts, the Avon Longitudinal Study of Parents and Children (ALSPAC; born 1991-92 with data from age 0-18 years) and the Millennium Cohort Study (MCS; born 2000-02 with data from age 3-10 years)...
2017: PloS One
https://www.readbyqxmd.com/read/28438546/clinical-predictors-of-remission-and-persistence-of-adult-onset-asthma
#2
Guus A Westerhof, Hanneke Coumou, Selma B de Nijs, ElsJ Weersink, Elizabeth H Bel
BACKGROUND: Adult-onset asthma is an important but relatively understudied asthma phenotype and little is known about its natural course and prognosis. The remission rate is believed to be low, and it is still obscure which factors predict remission or persistence of the disease. OBJECTIVE: To determine the remission rate, and identify predictors of persistence and remission of adult-onset asthma. METHODS: Two hundred adult patients with recently diagnosed (<1 year) asthma were recruited from secondary and tertiary pulmonary clinics and prospectively followed for 5 years...
April 21, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28431499/asthma-copd-overlap-syndrome-acos-in-primary-care-of-four-latin-america-countries-the-puma-study
#3
Maria Montes de Oca, Maria Victorina Lopez Varela, Maria E Laucho-Contreras, Alejandro Casas, Eduardo Schiavi, Juan Carlos Mora
BACKGROUND: Asthma-COPD overlap syndrome (ACOS) prevalence varies depending on the studied population and definition criteria. The prevalence and clinical characteristics of ACOS in an at-risk COPD primary care population from Latin America was assessed. METHODS: Patients ≥40 years, current/ex-smokers and/or exposed to biomass, attending routine primary care visits completed a questionnaire and performed spirometry. COPD was defined as post-bronchodilator forced expiratory volume in 1 s/forced vital capacity (FEV1/FVC) < 0...
April 21, 2017: BMC Pulmonary Medicine
https://www.readbyqxmd.com/read/28429306/mitochondrial-function-in-allergic-disease
#4
REVIEW
Divyaanka Iyer, Navya Mishra, Anurag Agrawal
PURPOSE OF THE REVIEW: The connections between allergy, asthma and metabolic syndrome are becoming increasingly clear. Recent research suggests a unifying mitochondrial link between the diverse phenotypes of these interlinked morbidities. The scope of this review is to highlight cellular mechanisms, epidemiology and environmental allergens influencing mitochondrial function and its importance in allergy and asthma. We briefly also consider the potential of mitochondria-targeted therapies in prevention and cure...
May 2017: Current Allergy and Asthma Reports
https://www.readbyqxmd.com/read/28426171/sputum-basophils-are-increased-in-eosinophilic-asthma-compared-with-non-eosinophilic-asthma-phenotypes
#5
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/28422351/clinical-phenotypes-in-asthma-during-childhood
#6
Jocelyne Just, Melisande Bourgoin-Heck, Flore Amat
In the 21st century, the heterogeneity of asthma and allergic diseases in childhood will be characterized by multiple phenotypes related to different pathophysiologic pathways or endotypes. From a medical point of view, improved understanding of disease etiology and mechanisms will lead to optimal management including personalized targeted treatment. This article is protected by copyright. All rights reserved.
April 19, 2017: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28416952/asthma-and-the-risk-of-rheumatoid-arthritis-an-insight-into-the-heterogeneity-and-phenotypes-of-asthma
#7
REVIEW
Mary Claire Rolfes, Young Jun Juhn, Chung-Il Wi, Youn Ho Sheen
Asthma is traditionally regarded as a chronic airway disease, and recent literature proves its heterogeneity, based on distinctive clusters or phenotypes of asthma. In defining such asthma clusters, the nature of comorbidity among patients with asthma is poorly understood, by assuming no causal relationship between asthma and other comorbid conditions, including both communicable and noncommunicable diseases. However, emerging evidence suggests that the status of asthma significantly affects the increased susceptibility of the patient to both communicable and noncommunicable diseases...
April 2017: Tuberculosis and Respiratory Diseases
https://www.readbyqxmd.com/read/28411833/atopic-dermatitis-and-comorbidities-added-value-of-comprehensive-dermatoepidemiology
#8
Tamar Nijsten
Atopic dermatitis is common and in its severe form is devastating. This chronic inflammatory dermatosis is part of the atopic syndrome, which includes asthma, food allergies, and hay fever and is known to be associated with mental health disorders. In line with psoriasis, several recent observational studies using national survey and linkage data have suggested a link between atopic dermatitis and cardiovascular disease. The atopic dermatitis field can benefit from the past experiences in psoriasis research and should not follow the same path, but, rather, aim for a more comprehensive approach from the beginning...
May 2017: Journal of Investigative Dermatology
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/28402696/chronic-cough-and-an-atypical-peripheral-pattern-on-chest-imaging-a-case-report-secondary-to-suspected-drug-onset
#10
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/28401936/bmal1-links-the-circadian-clock-to-viral-airway-pathology-and-asthma-phenotypes
#11
A Ehlers, W Xie, E Agapov, S Brown, D Steinberg, R Tidwell, G Sajol, R Schutz, R Weaver, H Yu, M Castro, L B Bacharier, X Wang, M J Holtzman, J A Haspel
Patients with asthma experience circadian variations in their symptoms. However it remains unclear how specific aspects of this common airway disease relate to clock genes, which are critical to the generation of circadian rhythms in mammals. Here, we used a viral model of acute and chronic airway disease to examine how circadian clock disruption affects asthmatic lung phenotypes. Deletion of the core clock gene bmal1 or environmental disruption of circadian function by jet lag exacerbated acute viral bronchiolitis caused by Sendai virus (SeV) and influenza A virus in mice...
April 12, 2017: Mucosal Immunology
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/28400707/sani-severe-asthma-network-in-italy-a-way-forward-to-monitor-severe-asthma
#13
EDITORIAL
G Senna, M Guerriero, P L Paggiaro, F Blasi, M Caminati, E Heffler, M Latorre, G W Canonica
Even if severe asthma (SA) accounts for 5-10% of all cases of the disease, it is currently a crucial unmet need, owing its difficult clinical management and its high social costs. For this reason several networks, focused on SA have been organized in some countries, in order to select these patients, to recognize their clinical features, to evaluate their adherence, to classify their biological/clinical phenotypes, to identify their eligibility to the new biologic therapies and to quantify the costs of the disease...
2017: Clinical and Molecular Allergy: CMA
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
#14
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/28391979/maintenance-of-pathogenic-th2-cells-in-allergic-disorders
#15
REVIEW
Kenta Shinoda, Kiyoshi Hirahara, Toshinori Nakayama
Immunological memory is an important protective mechanism that enables host organisms to respond rapidly and vigorously to pathogens that have been previously encountered. In addition to the protective function, memory CD4(+) T helper (Th) cells play a central role in the pathogenesis of chronic inflammatory disorders, including asthma. Recently, several investigators have identified phenotypically and functionally distinct memory Th2 cell subsets that produce IL-5. These memory Th2 cell subsets play an important role in the pathology of allergic inflammation and function as memory-type "pathogenic Th2 (Tpath2) cells" both in mice and humans...
April 5, 2017: Allergology International: Official Journal of the Japanese Society of Allergology
https://www.readbyqxmd.com/read/28390574/airway-microbial-dysbiosis-in-asthmatic-patients-a%C3%A2-target-for-prevention-and-treatment
#16
REVIEW
Kian Fan Chung
There has been long-standing interest in the role of bacterial communities in the complex and heterogeneous disease of asthma. With the advent of 16s rRNA sequencing replacing traditional culture methods, a strong association between the presence of bacterial communities with asthma has emerged. These microbiota can be modulated by various environmental factors, including diet, antibiotics, and early-life microbial exposures. Microbiota in the gut and lungs can influence both the inception and progress of asthma...
April 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28389304/cluster-analysis-on-longitudinal-data-of-patients-with-adult-onset-asthma
#17
Pinja Ilmarinen, Leena E Tuomisto, Onni Niemelä, Minna Tommola, Jussi Haanpää, Hannu Kankaanranta
BACKGROUND: Previous cluster analyses on asthma are based on cross-sectional data. OBJECTIVE: To identify phenotypes of adult-onset asthma by using data from baseline (diagnostic) and 12-year follow-up visits. METHODS: The Seinäjoki Adult Asthma Study is a 12-year follow-up study of patients with new-onset adult asthma. K-means cluster analysis was performed by using variables from baseline and follow-up visits on 171 patients to identify phenotypes...
April 4, 2017: Journal of Allergy and Clinical Immunology in Practice
https://www.readbyqxmd.com/read/28388228/clinical-management-of-severe-therapy-resistant-asthma
#18
Kian Fan Chung
Severe therapy-resistant asthma is an area where there has been recent advances in understanding that is percolating into improvements in management. Areas covered: This review covers the recent definition and approach to the diagnosis of severe asthma and its differentiation from difficult-to-treat asthma. The recent advances in phenotyping severe asthma and in ensuing changes in management approaches together with the introduction of new therapies are covered from a review of the recent literature. Expert commentary: After ascertaining the diagnosis of severe asthma, patients need to be treated adequately with existing therapies...
May 2017: Expert Review of Respiratory Medicine
https://www.readbyqxmd.com/read/28387160/long-term-treatment-in-pediatric-asthma-an-update-on-chemical-pharmacotherapy
#19
Carolina Vitale, Angelantonio Maglio, Corrado Pelaia, Alessandro Vatrella
Asthma is the most common chronic disease in childhood, affecting approximately 10% of all children, and is the leading cause of hospitalization in developed countries. In this paper we aimed to review the evidence on chemical pharmacotherapy for long-term treatment of pediatric asthma, according to the latest updates. Area covered: Long-term treatment, essential for controlling symptoms and reducing future risks including exacerbations and decline in lung function, includes control agents such as inhaled corticosteroids, long-acting beta2-adrenergic agonists, and leukotriene modifiers...
May 2017: Expert Opinion on Pharmacotherapy
https://www.readbyqxmd.com/read/28387094/-formoterol-budesonide-combination-for-maintenance-and-relief-in-children-and-adolescents-with-asthma
#20
REVIEW
G de Bilderling, D Smal, E Bradatan
International guidelines have been edited to standardize asthma management. These guidelines are often difficult to translate to clinical practice because of gaps in the knowledge of clinical practitioners but also because of compliance issues, particularly in children and adolescents. A new approach named SIT (for Single Inhaler Therapy) or SMART (for Symbicort Maintenance and Reliever Therapy) has demonstrated its safety and efficacy in numerous studies of adults with asthma summarized in two Cochrane reviews...
December 2016: Revue Médicale de Liège
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