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Asthma phenotype

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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
#1
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/29643544/-bronchial-adenoid-cystic-carcinoma-masquerading-as-bronchial-asthma-a-case-report
#2
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/29627118/alveolar-and-bronchial-nitric-oxide-in-chronic-obstructive-pulmonary-disease-and-asthma-copd-overlap
#3
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/29627041/obesity-and-asthma
#4
REVIEW
Ubong Peters, Anne E Dixon, Erick Forno
Obesity is a vast public health problem and both a major risk factor and disease modifier for asthma in children and adults. Obese subjects have increased asthma risk, and obese asthmatic patients have more symptoms, more frequent and severe exacerbations, reduced response to several asthma medications, and decreased quality of life. Obese asthma is a complex syndrome, including different phenotypes of disease that are just beginning to be understood. We examine the epidemiology and characteristics of this syndrome in children and adults, as well as the changes in lung function seen in each age group...
April 2018: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/29617923/breastfeeding-and-childhood-wheeze-age-specific-analyses-and-longitudinal-wheezing-phenotypes-as-complimentary-approaches-to-the-analysis-of-cohort-data
#5
Maria A Quigley, Claire Carson, Yvonne Kelly
Systematic reviews suggest that breastfeeding is associated with a lower risk of asthma, although marked heterogeneity exists. Using UK Millennium Cohort Study data (n = 10,126 children born 2000-2001), we examined the association between breastfeeding duration and wheezing in the past year, first at each age-group separately (age 9 months, 3, 5, 7 and 11 years) and then as a longitudinal wheezing phenotype: 'early transient' (wheezing any time up to age 5 but not thereafter); 'late onset' (any time from age 7 but not beforehand); 'persistent' (any time up to age 5 and any time from age 7)...
April 3, 2018: American Journal of Epidemiology
https://www.readbyqxmd.com/read/29617859/human-lung-epithelial-cells-support-human-metapneumovirus-persistence-by-overcoming-apoptosis
#6
Stefania Marsico, Francesca Caccuri, Pietro Mazzuca, Paola Apostoli, Sara Roversi, Giovanni Lorenzin, Alberto Zani, Simona Fiorentini, Cinzia Giagulli, Arnaldo Caruso
Human metapneumovirus (hMPV) has been identified as a major cause of lower respiratory tract infection in children. Epidemiological and molecular evidence has highlighted an association between severe childhood respiratory viral infection and chronic lung diseases, such as asthma and chronic obstructive pulmonary disease. Currently, animal models have demonstrated the ability of hMPV to persist in vivo suggesting a role of the virus in asthma development in children. However, mechanisms involved in hMPV persistence in the respiratory tract are not yet understood...
March 1, 2018: Pathogens and Disease
https://www.readbyqxmd.com/read/29617009/correction-differentiation-of-quantitative-ct-imaging-phenotypes-in-asthma-versus-copd
#7
(no author information available yet)
[This corrects the article DOI: 10.1136/bmjresp-2017-000252.].
2018: BMJ Open Respiratory Research
https://www.readbyqxmd.com/read/29611776/last-station-in-the-eosinophilic-asthma-with-chronic-rhinosinusitis-and-or-nasal-polyposis-march-eosinophilic-asthma-with-radiological-findings-associated-with-blood-eosinophilia
#8
Insu Yılmaz, Sakine Nazik Bahçecioğlu, Murat Türk, Nuri Tutar, Fatma Sema Oymak, İnci Gülmez
OBJECTIVE: Eosinophilic asthma with chronic rhinosinusitis and/or nasal polyposis (EA-CRS/NP) is a subphenotype of adult-onset eosinophilic asthma. Blood eosinophil levels are shown to be highly elevated in patients with EA-CRS/NP and have potential for tissue infiltration. We aimed to demonstrate the clinical features of the patients who have a blood eosinophil level above 10% and have thorax computed tomography findings due to blood eosinophilia. METHODS: Patients who were followed up in our clinic between 2012 and 2017 were retrospectively evaluated...
April 3, 2018: Journal of Asthma: Official Journal of the Association for the Care of Asthma
https://www.readbyqxmd.com/read/29611440/new-biologics-for-allergic-diseases
#9
Laurie A Manka, Michael E Wechsler
Allergic conditions such as asthma and atopic dermatitis have a high prevalence but represent a heterogeneous group of diseases despite similar clinical presentation and underlying pathophysiology. A better understanding of the phenotypes and endotypes of these diseases has driven rapid development of biologic medications targeting many steps of the inflammatory pathways. Areas Covered: There are 2 major inflammatory pathways that drive allergic diseases: Type-2 (Th-2) inflammation and non-type 2 inflammation...
April 3, 2018: Expert Review of Clinical Immunology
https://www.readbyqxmd.com/read/29609049/type-2-biomarkers-and-prediction-of-future-exacerbations-and-lung-function-decline-in-adult-asthma
#10
Ruth Semprini, Mathew Williams, Alex Semprini, Alice McDouall, James Fingleton, Cecile Holweg, Mark Weatherall, Richard Beasley, Irene Braithwaite
BACKGROUND: Type 2 biomarkers that predict both likelihood of future severe exacerbations and response to monoclonal antibody therapy in asthma, would be useful clinically in identifying patients both at greater risk of hospitalization, and most likely to benefit from monoclonal antibody therapy. OBJECTIVE: To describe the association between the Type 2 biomarkers, blood eosinophils, FeNO, serum periostin, serum IgE and time to severe exacerbation in a broad asthma population...
March 30, 2018: Journal of Allergy and Clinical Immunology in Practice
https://www.readbyqxmd.com/read/29606855/benralizumab-in-the-treatment-of-severe-asthma-design-development-and-potential-place-in-therapy
#11
REVIEW
Corrado Pelaia, Alessandro Vatrella, Andrea Bruni, Rosa Terracciano, Girolamo Pelaia
Asthma is a widespread and heterogeneous inflammatory disease of the airways, which is characterized by several different phenotypes and endotypes. In particular, eosinophilic airway inflammation is a common pathologic trait of both allergic and nonallergic asthma. The key cytokine responsible for maturation, activation, recruitment, and survival of eosinophils is interleukin (IL)-5, which is mainly produced by T helper 2 (Th2) lymphocytes and group 2 innate lymphoid cells. Therefore, for uncontrolled patients with severe eosinophilic asthma, who are not fully responsive to corticosteroids, IL-5 represents a very important molecular target for add-on biological therapies...
2018: Drug Design, Development and Therapy
https://www.readbyqxmd.com/read/29604118/what-does-lung-function-tell-us-about-respiratory-multimorbidity-in-childhood-and-early-adulthood-results-from-the-mas-birth-cohort-study
#12
Dirk Schramm, Marvin Reuter, Linus B Grabenhenrich, Antje Schuster, Christiane Lex, Carl-Peter Bauer, Ute Hoffmann, Johannes Forster, Fred Zepp, Renate L Bergmann, Karl E Bergmann, Ulrich Wahn, Thomas Keil, Susanne Lau
BACKGROUND: Interaction of respiratory multimorbidity and lung function has not been examined in longitudinal population studies. We aimed to assess the association of multimorbidity of asthma and rhinitis with lung function and bronchial hyperresponsiveness in comparison to single and no allergies from early school age to young adulthood. METHODS: In 1990, the Multicenter Allergy Study birth cohort recruited 1314 newborns from 5 German cities. At 7, 13 and 20 years, we performed lung function and bronchial challenge tests...
March 31, 2018: Pediatric Allergy and Immunology
https://www.readbyqxmd.com/read/29602169/allergic-phenotype-of-chronic-rhinosinusitis-based-on-radiologic-pattern-of-disease
#13
Aneeza W Hamizan, Patricia A Loftus, Raquel Alvarado, Jacqueline Ho, Larry Kalish, Raymond Sacks, John M DelGaudio, Richard J Harvey
OBJECTIVES/HYPOTHESIS: Polypoid edema of the middle turbinate is a marker of inhalant allergy. Extensive edematous changes may result in limited central nasal and sinus disease, which has been called central compartment atopic disease (CCAD). Radiologically, this is seen as soft tissue thickening in the central portion of the sinonasal cavity with or without paranasal sinus involvement. When the sinuses are involved, the soft tissue thickening spares the sinus roof or lateral wall (centrally limited)...
March 30, 2018: Laryngoscope
https://www.readbyqxmd.com/read/29601613/an-acne-survey-from-the-world-s-largest-annual-gathering-of-twins
#14
Amanda Suggs, Mathew Loesch, Harib Ezaldein, Luisa Christensen, Danyelle Dawes, Elma Baron
IMPORTANCE: Surveying identical twins allows us to qualitatively separate genetic and environmental factors that may contribute to acne severity. OBJECTIVE: To study a cohort of identical and fraternal twins to identify environmental factors that may influence acne severity. DESIGN, SETTING, PARTICIPANTS: A survey was administered to 139 identical and fraternal twin multiples (279 subjects) at the Annual Twins Day Festival in Twinsburg, Ohio on August 6-7, 2016...
April 1, 2018: Journal of Drugs in Dermatology: JDD
https://www.readbyqxmd.com/read/29601354/phenotypes-endotypes-driven-treatment-in-asthma
#15
Fulvio Braido, Angelica Tiotiu, Krzysztof Kowal, Stefan Mihaicuta, Plamena Novakova, Ipek Kivilcim Oguzulgen
PURPOSE OF REVIEW: Target therapy is the necessary step towards personalized medicine. The definition of asthma phenotypes and underlying mechanisms (endotypes) represent a key point in the development of new asthma treatments. Big data analysis, biomarker research and the availability of monoclonal antibodies, targeting specific cytokines is leading to the rapid evolution of knowledge. In this review, we sought to outline many of the recent advances in the field. RECENT FINDINGS: Several attempts have been made to identify asthma phenotypes, sometimes with contrasting results...
March 29, 2018: Current Opinion in Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/29600353/the-variants-in-the-3-untranslated-region-of-the-matrix-metalloproteinase-9-gene-as-modulators-of-treatment-outcome-in-children-with-asthma
#16
Sandra Dragicevic, Mitja Kosnik, Aleksandra Divac Rankov, Matija Rijavec, Katarina Milosevic, Peter Korosec, Maja Skerbinjek Kavalar, Aleksandra Nikolic
PURPOSE: The maintaining of asthma control is difficult due to high variability in response to therapy among patients. Since matrix metalloproteinase 9 (MMP9) is implicated in inflammation and remodeling of asthmatic airways, it could be associated with adequate response to asthma therapy. The aim of this study was to investigate whether variants in 3' end of the MMP9 gene are associated with clinical phenotype and responsiveness to treatment in children with asthma. METHODS: The study included 127 asthmatic children from Slovenia...
March 29, 2018: Lung
https://www.readbyqxmd.com/read/29584459/perimenstrual-asthma-report-of-a-case-with-therapeutic-intervention-of-oral-prednisone
#17
Zhang Lei, Deng Yanhan, Wang Yi, Xiong Shengdao, Xiong Weining
INTRODUCTION: Many asthmatic women of childbearing age experience cyclical aggravation of asthmatic symptoms during the perimenstrual period, or perimenstrual asthma (PMA). PMA is considered to be a difficult-to-treat asthma phenotype; conventional asthma therapies are not always effective against PMA. CASE STUDY: We report a case of a 27-year-old female with PMA who had received standard asthma treatment since 2013. RESULT: The patient showed a dramatic response to therapeutic intervention of oral prednisone, taken for 7 days prior to menstruation each month, in a dose-dependent manner...
March 27, 2018: Journal of Asthma: Official Journal of the Association for the Care of Asthma
https://www.readbyqxmd.com/read/29575948/blood-biomarkers-in-chronic-airways-diseases-and-their-role-in-diagnosis-and-management
#18
Job J M H van Bragt, Susanne J H Vijverberg, Els J M Weersink, Levi B Richards, Anne H Neerincx, Peter J Sterk, Elisabeth H D Bel, Anke H Maitland-van der Zee
The complexity and heterogeneous nature of asthma and chronic obstructive pulmonary disease (COPD) results in difficulties in diagnosing and treating patients. Biomarkers that can identify underlying mechanisms, identify patient phenotypes and to predict treatment response could be of great value for adequate treatment. Areas covered: Biomarkers play an important role for the development of novel targeted therapies in airways disease. Blood biomarkers are relatively non-invasive, easy to obtain and easy to apply in routine care...
March 29, 2018: Expert Review of Respiratory Medicine
https://www.readbyqxmd.com/read/29574825/risk-factors-associated-with-allergic-sensitization-and-asthma-phenotypes-among-poultry-farm-workers
#19
Dorothy Ngajilo, Tanusha Singh, Edith Ratshikhopha, Payal Dayal, Onnicah Matuka, Roslynn Baatjies, Mohamed F Jeebhay
BACKGROUND: This study investigated the risk factors for occupational allergic sensitization and various asthma phenotypes in poultry-workers. METHODS: A cross-sectional study of 230 workers used a modified ECRHS questionnaire, spirometry, FeNO, Phadiatop, and sIgE to poultry farming related allergens. RESULTS: Worker's mean age was 37 ± 9 years, 68% male, 43% current-smokers, 34% atopic, and 5% casual-workers. The prevalence of non-atopic asthma (NAA = 7%) was higher than atopic-asthma (AA = 5%) and probable allergic occupational-asthma (OA = 3%)...
March 25, 2018: American Journal of Industrial Medicine
https://www.readbyqxmd.com/read/29574758/childhood-asthma-clusters-reveal-neutrophil-predominant-phenotype-with-distinct-gene-expression
#20
Ming-Wei Su, Wen-Chang Lin, Ching-Hui Tsai, Bor-Luen Chiang, Yao-Hsu Yang, Yu-Tsan Lin, Li-Chieh Wang, Jyh-Hong Lee, Chen-Cheng Chou, Yi-Fan Wu, Yu-Liang Yeh, Yungling L Lee
BACKGROUND: Childhood asthma comprises different phenotypes with complex pathophysiology. Different asthma phenotypes evoke various clinical symptoms and vary in their responses to treatments. METHODS: We applied k-means clustering algorithm of twelve objective laboratory tests among 351 asthmatic children enrolled in the Taiwanese Consortium of Childhood Asthma Study (TCCAS). We constructed gene expression profiles of peripheral blood mononuclear cells (PBMC) from children with different asthma phenotypes...
March 25, 2018: Allergy
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