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asthma phenotypes

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https://www.readbyqxmd.com/read/27925779/retraction-distinct-phenotypes-of-cigarette-smokers-identified-by-cluster-analysis-of-patients-with-severe-asthma
#1
(no author information available yet)
No abstract text is available yet for this article.
December 2016: Annals of the American Thoracic Society
https://www.readbyqxmd.com/read/27913422/factor-xi-deficiency-enhances-the-pulmonary-allergic-response-to-house-dust-mite-in-mice-independent-of-factor-xii
#2
Ingrid Stroo, Jack Yang, Johannes Daan de Boer, Joris J T H Roelofs, Cornelis van 't Veer, Francis J Castellino, Sacha Zeerleder, Tom van der Poll
Asthma is associated with activation of coagulation in the airways. The coagulation system can be initiated via the extrinsic tissue factor dependent pathway or via the intrinsic pathway, in which the central player factor XI (FXI) can be either activated via active factor XII (FXIIa) or via thrombin. We aimed to determine the role of the intrinsic coagulation system, and its possible route of activation, in allergic lung inflammation induced by the clinically relevant human allergen house dust mite (HDM). Wild-type (WT), FXI knockout (KO) and FXII KO mice were subjected to repeated exposure to HDM via the airways, and inflammatory responses were compared...
December 2, 2016: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/27905295/desensitization-of-idiopathic-pulmonary-fibrosis-fibroblasts-to-alternaria-alternata-extract-mediated-necrotic-cell-death
#3
Jintaek Im, Kyutae Kim, Ji Young Yhee, Scott M O'Grady, Richard S Nho
Alternaria alternata is an allergenic fungus and known to cause an upper respiratory tract infection and asthma in humans with compromised immunity. Although A. alternata's effect on airway epithelial cells has previously been examined, the potential role of A. alternata on lung fibroblast viability is not understood. Since lung fibroblasts derived from patients with idiopathic pulmonary fibrosis (IPF) display a distinct phenotype that is resistant to stress and cell death inducing conditions, the investigation of the role of Alternaria on pathological IPF fibroblasts provides a better understanding of the fibrotic process induced by an allergenic fungus...
November 2016: Physiological Reports
https://www.readbyqxmd.com/read/27905186/severe-asthma-current-management-targeted-therapies-and-future-directions-a-roundtable-report
#4
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/27899011/nasal-lavage-blood-or-sputum-which-is-best-for-phenotyping-asthma
#5
Camyla F de Farias, Maria M F Amorim, Michel Dracoulakis, Lilian B Caetano, Ilka L Santoro, Ana L G Fernandes
BACKGROUND AND OBJECTIVE: Determination of asthma phenotypes, particularly inflammatory phenotypes, helps guide treatment and management of this heterogeneous disease. Induced sputum cytology has been the gold standard for determination of inflammatory phenotypes, but sputum induction is fairly invasive and technically challenging. Blood and nasal lavage cytology have been suggested as substitutes, but have not been fully verified. The aim of this study is to determine the accuracy of blood and nasal lavage cytometry as indicators of inflammatory phenotypes in asthma...
November 29, 2016: Respirology: Official Journal of the Asian Pacific Society of Respirology
https://www.readbyqxmd.com/read/27896984/methods-for-clustering-time-series-data-acquired-from-mobile-health-apps
#6
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/27888993/identifying-biomarkers-for-asthma-diagnosis-using-targeted-metabolomics-approaches
#7
William Checkley, Maria P Deza, Jost Klawitter, Karina M Romero, Jelena Klawitter, Suzanne L Pollard, Robert A Wise, Uwe Christians, Nadia N Hansel
BACKGROUND: The diagnosis of asthma in children is challenging and relies on a combination of clinical factors and biomarkers including methacholine challenge, lung function, bronchodilator responsiveness, and presence of airway inflammation. No single test is diagnostic. We sought to identify a pattern of inflammatory biomarkers that was unique to asthma using a targeted metabolomics approach combined with data science methods. METHODS: We conducted a nested case-control study of 100 children living in a peri-urban community in Lima, Peru...
December 2016: Respiratory Medicine
https://www.readbyqxmd.com/read/27888035/racial-differences-in-food-allergy-phenotype-and-health-care-utilization-among-us-children
#8
Mahboobeh Mahdavinia, Susan R Fox, Bridget M Smith, Christine James, Erica L Palmisano, Aisha Mohamed, Zeeshan Zahid, Amal H Assa'ad, Mary C Tobin, Ruchi S Gupta
BACKGROUND: Food allergy (FA) is a prevalent condition in the United States, but little is known about its phenotypes in racial minority groups. OBJECTIVE: The objective of this study was to characterize disease phenotypes and disparities in health care utilization among African American (AA), Hispanic, and white children with FA. METHODS: We conducted a large, 2-center, retrospective cohort study of children aged 0-17 years with FA seen in allergy/immunology clinics at 2 urban tertiary care centers in the United States...
November 22, 2016: Journal of Allergy and Clinical Immunology in Practice
https://www.readbyqxmd.com/read/27881779/allergic-inflammation-leads-to-neuropathic-pain-via-glial-cell-activation
#9
Ryo Yamasaki, Takayuki Fujii, Bing Wang, Katsuhisa Masaki, Mizuho A Kido, Mari Yoshida, Takuya Matsushita, Jun-Ichi Kira
: Allergic and atopic disorders have increased over the past few decades and have been associated with neuropsychiatric conditions, such as autism spectrum disorder and asthmatic amyotrophy. Myelitis presenting with neuropathic pain can occur in patients with atopic disorder; however, the relationship between allergic inflammation and neuropathic pain, and the underlying mechanism, remains to be established. We studied whether allergic inflammation affects the spinal nociceptive system...
November 23, 2016: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/27879060/evidence-of-microbiota-dysbiosis-in-chronic-rhinosinusitis
#10
Michael Hoggard, Kristi Biswas, Melissa Zoing, Brett Wagner Mackenzie, Michael W Taylor, Richard G Douglas
BACKGROUND: Despite considerable research, the pathogenesis of chronic rhinosinusitis (CRS) remains poorly understood. Potential microbial roles in the etiology or progression of CRS have long been hypothesized, yet few specific associations have been identified. In this study we investigate associations between patterns in resident bacterial communities and clinical variants of CRS. METHODS: Bacterial communities were assessed in 94 patients with extensive bilateral CRS undergoing endoscopic sinus surgery (ESS) and 29 controls undergoing ESS for indications other than CRS...
November 23, 2016: International Forum of Allergy & Rhinology
https://www.readbyqxmd.com/read/27875418/nonclassic-features-of-pseudohypoparathyroidism-type-1a
#11
Ashley H Shoemaker, Harald Jüppner
PURPOSE OF REVIEW: To provide readers with a review of contemporary literature describing the evolving understanding of the pseudohypoparathyroidism type 1A (PHP1A) phenotype. RECENT FINDINGS: The classic features of PHP1A include multihormone resistance and the Albright Hereditary Osteodystrophy phenotype (round facies, short stature, subcutaneous ossifications, brachydactyly, and early-onset obesity. Obesity may be because of a decrease in resting energy expenditure because most patients do not report significant hyperphagia...
November 21, 2016: Current Opinion in Endocrinology, Diabetes, and Obesity
https://www.readbyqxmd.com/read/27871877/journal-allergy-clinical-immunology-perspective-clinical-potential-for-imaging-in-asthma-and-other-lung-disorders
#12
Emily M DeBoer, David R Spielberg, Alan S Brody
The ability of lung imaging to phenotype patients, determine prognosis, and to predict response to treatments is expanding in clinical and translational research. The purpose of this perspective is to describe current imaging modalities that may be useful clinical tools in asthma and other lung disorders and to explore some of the new developments in imaging modalities of the lung. These imaging modalities include chest radiography (CXR), computed tomography (CT), lung magnetic resonance imaging (MRI), electrical impedance tomography (EIT), bronchoscopy, and others...
November 18, 2016: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/27871876/disaggregating-asthma-big-investigation-vs-big-data
#13
Danielle Belgrave, John Henderson, Angela Simpson, Iain Buchan, Christopher Bishop, Adnan Custovic
We are facing a major challenge in bridging the gap between identifying subtypes of asthma, to understanding causal mechanisms, and translating this knowledge into personalized prevention and management strategies. In recent years, "big data" has been sold as a panacea for generating hypotheses and driving new frontiers of healthcare; the idea that the data must and will speak for themselves is fast becoming a new dogma. One of the dangers of ready accessibility of healthcare data and computational tools for data analysis is that the process of data mining may become uncoupled from the scientific process of clinical interpretation, understanding the provenance of the data and external validation...
November 18, 2016: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/27870665/near-fatal-asthma-a-heterogeneous-clinical-entity
#14
José Serrano-Pariente, Vicente Plaza
PURPOSE OF REVIEW: The aims of the present review were to describe the heterogeneous nature of near-fatal asthma (NFA) and to summarize the distinctive phenotypes identified in this subtype of asthma. RECENT FINDINGS: Clinical, physiological, and histological studies have shown a large number of triggers, pathological mechanisms, and risk factors associated with NFA. Based on the demographic and clinical characteristics of the patients, the circumstances surrounding the asthma exacerbation and some distinctive features of the disease, several clinical profiles of asthma patients with NFA have been described...
November 18, 2016: Current Opinion in Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/27868027/th2-th17-reciprocal-regulation-twists-and-turns-in-the-complexity-of-asthma-phenotypes
#15
COMMENT
Jason P Lynch, Manuel A Ferreira, Simon Phipps
No abstract text is available yet for this article.
October 2016: Annals of Translational Medicine
https://www.readbyqxmd.com/read/27867084/new-concepts-in-asthma-clinical-phenotypes-and-pathophysiological-mechanisms
#16
REVIEW
Andreas R Koczulla, Claus F Vogelmeier, Holger Garn, Harald Renz
Asthma is among the most common chronic inflammatory diseases worldwide. Recent evidence indicates that the pathogenesis shows a high degree of heterogeneity. Patient subsets have been identified that exhibit different cellular and molecular patterns of dysregulation. A prominent example is eosinophilic Th2-driven asthma. These unique and molecular patterns are termed endotypes. Characterization of endotypes has broad implications for therapeutic interventions. Although ∼80% of asthmatic patients respond well to standard anti-inflammatory therapies, the remaining subset particularly consisting of severe patients requires a more specialized endotype-specific approach...
November 17, 2016: Drug Discovery Today
https://www.readbyqxmd.com/read/27865540/cofactors-and-comorbidities-in-patients-with-aspirin-nsaid-hypersensitivity
#17
REVIEW
M Sánchez-Borges, F Caballero-Fonseca, A Capriles-Hulett
Hypersensitivity reactions to aspirin and other NSAIDs occur in individuals genetically predisposed and exhibit different clinical manifestations, especially respiratory, cutaneous, and generalised. Five different phenotypes define distinct clinical pictures: aspirin-exacerbated respiratory disease, aspirin/NSAID cutaneous disease, NSAID-induced urticaria, angio-oedema and anaphylaxis, single NSAID reactions, and delayed reactions. They are observed more frequently in middle-aged women, and in atopic individuals...
November 16, 2016: Allergologia et Immunopathologia
https://www.readbyqxmd.com/read/27864676/anti-ige-and-biologic-approaches-for-the-treatment-of-asthma
#18
Patrick D Mitchell, Amani I El-Gammal, Paul M O'Byrne
Current asthma treatments are effective for the majority of patients with mild-to-moderate disease. However, in those with more severe refractory asthma, agents other than inhaled corticosteroids and beta-agonists are needed both to better manage this group of patients and to avoid the side effects of high-dose corticosteroids and the social and personal hardship endured. Several biological pathways have been targeted over the last 20 years, and this research has resulted in pharmacological approaches to attempt to better treat patients with severe refractory asthma...
November 19, 2016: Handbook of Experimental Pharmacology
https://www.readbyqxmd.com/read/27852249/assessment-of-work-related-asthma-prevalence-control-and-severity-protocol-of-a-field-study
#19
Hermine Mével, Valérie Demange, Emmanuelle Penven, Christian Trontin, Pascal Wild, Christophe Paris
BACKGROUND: There are still uncertainties regarding the respective prevalence, diagnosis and management of occupational asthma (OA) and work-exacerbated asthma (WEA). There is as yet no standardized methodology to differentiate their diagnosis. A proper management of both OA and WEA requires tools for a good phenotyping in terms of control, severity and quality of life in order to propose case-specific therapeutical and preventive measures. Moreover, there is a lack of knowledge concerning their actual costs...
November 16, 2016: BMC Public Health
https://www.readbyqxmd.com/read/27849652/polyps-asthma-and-allergy-what-s-new
#20
Dimitrios Terzakis, Christos Georgalas
PURPOSE OF REVIEW: Although chronic rhinosinusitis with nasal polyps, asthma, and allergy share common inflammatory mechanisms, there is no evidence of cause-and-effect relationship. In this review, we present new studies investigating the complex immunology that links these diseases. Advances in new therapies as well as evidence regarding indication and timing of surgery, especially of more complex cases, are highlighted. RECENT FINDINGS: New studies have endotyped patients in an effort to describe the exact inflammatory profile of each phenotype, whereas described cytokines seem to play a significant role in amplification of T2 inflammation, directly or via innate lymphoid cells...
November 15, 2016: Current Opinion in Otolaryngology & Head and Neck Surgery
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