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Anunya Hiranrattana, Debra A Stern, Stefano Guerra, Marilyn Halonen, Anne L Wright, Michael Daines, Fernando D Martinez, Wayne J Morgan
In the non-selected birth cohort Tucson Children's Respiratory Study, early sensitisation to Alternaria was associated with increased airway hyper-responsiveness (AHR) into adult life among non-asthmatics. The increase in AHR was of a similar magnitude to that seen for Alternaria sensitised asthmatics and was primarily evident among those who were overweight or obese. In contrast, there was no significant association between early sensitisation to aeroallergens other than Alternaria and AHR among non-asthmatics...
March 21, 2018: Thorax
Rosy Wells, A T Fox, Mark Furman
Case reports have described an association between oral food/aeroallergen immunotherapy with the development of eosinophilic oesophagitis (EoE). The underlying mechanism of this is poorly understood, as is the role that both food/aeroallergen sensitisation plays in the pathogenesis of EoE. Specific immunotherapy has a long-standing history of use in the management of moderate/severe seasonal allergic rhinitis (AR), caused by tree/grass pollens. Subcutaneous immunotherapy (SCIT) to grass pollen is less commonly used in children than sublingual immunotherapy (SLIT) or oral immunotherapy for practical reasons...
March 15, 2018: BMJ Case Reports
Li-Fen Yang, Liang-Ming Cai, Ming Li, Jin-Tao Liu, Zhao-Ni Wang, Wei-Hao Wang, Qin-Tai Yang, Zhuang-Gui Chen
Objective: To investigate the alterative spectrum and trends of aeroallergens sensitization in children with allergic rhinitis (AR) in Guangzhou, China in the past 10 years. Participants and methods: In this retrospective study, 4,111 children with complaints of nasal hyper-reactivity who visited the Pediatric Department and/or Otolaryngology Department from January 2007 to November 2016 were enrolled. Serum specific immunoglobulin E was measured and positive detection was made in 3,328 patients, who were, therefore, diagnosed with AR...
2018: Therapeutics and Clinical Risk Management
Lorenzo Cecchi, Gennaro D'Amato, Isabella Annesi-Maesano
Allergies are complex diseases that result from interactions between multiple genetic and environmental factors. However, the increase in allergies observed in the past decades is explained exclusively by environmental changes occurring in the same period. Presently, the exposome, the totality of specific and nonspecific external environmental exposures (external exposome) to which a subject is exposed from preconception onward and their consequences at the organ and cell levels (internal exposome), is being considered to explain the inception, development, and exacerbations of allergic diseases...
March 2018: Journal of Allergy and Clinical Immunology
Matthew C Altman, Elizabeth Whalen, Alkis Togias, George T O'Connor, Leonard B Bacharier, Gordon R Bloomberg, Meyer Kattan, Robert A Wood, Scott Presnell, Petra LeBeau, Katy Jaffee, Cynthia M Visness, William W Busse, James E Gern
BACKGROUND: Childhood asthma in inner city populations is a major public health burden and understanding early life immune mechanisms that promote asthma onset is key to disease prevention. Children who develop asthma demonstrate a high prevalence of aeroallergen sensitization and T helper 2 (Th2)-type inflammation, however the early life immune events that lead to Th2 skewing and disease development are unknown. OBJECTIVE: We sought to use RNA sequencing of peripheral blood mononuclear cells (PBMCs) collected at age 2 to determine networks of immune responses that occur in children who develop allergy and asthma...
March 5, 2018: Journal of Allergy and Clinical Immunology
Paraskevi Xepapadaki, Claus Bachert, Susetta Finotto, Tuomas Jartti, George N Konstantinou, Alexander Kiefer, Marek Kowalski, Anna Lewandowska-Polak, Heikki Lukkarinen, Eirini Roumpedaki, Anna Sobanska, Ina Sintobin, Tytti Vuorinen, Nan Zhang, Theodor Zimmermann, Nikolaos G Papadopoulos
BACKGROUND: The PreDicta cohort was designed to prospectively evaluate wheeze/asthma persistence in preschoolers in association to viral/microbial exposures and immunological responses. We present the cohort design, demographic/disease characteristics and evaluate unsupervised and predefined phenotypic subgroups at inclusion. METHODS: PreDicta is a 2-year prospective study conducted in five European regions, including children 4-6 years with a diagnosis of asthma as cases and healthy age-matched controls...
March 7, 2018: Pediatric Allergy and Immunology
Qi Gao, Huijie Huang, Kang Zhu, Xiaoying Liu, Xiaoling Hou, Hui Guan, Yongge Liu, Deli Xin, Li Xiang, Kunling Shen, Xin Ni
In the current study, we sought to track the clinical course of children under control-based asthma management and focused on respiratory pathogens monitoring. We prospectively explored influencing factors for asthma control. 121 children with uncontrolled asthma between 3-14 years of age were recruited. Common respiratory pathogens were detected with pharyngeal swabs and serum aeroallergen-specific IgE was measured. Numeric asthma control scores, airway resistance and fractional concentrations of exhaled nitric oxide (FENO) were evaluated...
February 2018: Iranian Journal of Allergy, Asthma, and Immunology
Almira Ćosićkić, Fahrija Skokić, Amela Selimović, Maida Mulić, Sanimir Suljendić, Nermina Dedić, Damir Sabitović, Fejzo Džafić
Children with atopic dermatitis (AD) usually develop symptoms when they reach the age of 6-7 years, but the risk of developing respiratory allergies, asthma and allergic rhinitis (AR) remains high. In most children with AD, the development of asthma and AR is associated with sensitization to food allergens and/or aeroallergens, while only a small percentage missed atopic diathesis. In about 35% of children with AD, food allergy is the provoking cause, and 60% of infants who had AD in the first 3 months of life were sensitized against aeroallergens by the age of 5...
June 2017: Acta Clinica Croatica
Daniel Martinho-Dias, Bernardo Sousa-Pinto, Júlio Botelho-Souza, António Soares, Luís Delgado, João Almeida Fonseca
We performed a MeSH term-based bibliometric analysis aiming to assess the publication trends of EAACI journals, namely Allergy, Pediatric Allergy and Immunology (PAI) (from 1990 to 2015) and Clinical and Translational Allergy (CTA) (from its inception in 2011 to 2015). We also aimed to discuss the impact of the creation of CTA in the publication topics of Allergy and PAI. We analysed a total of 1973 articles and 23,660 MeSH terms. Most MeSH terms in the three journals fell in the category of "basic immunology and molecular biology" (BIMB)...
2018: Clinical and Translational Allergy
Olaf Perdijk, Marloes van Splunter, Huub F J Savelkoul, Sylvia Brugman, R J Joost van Neerven
During the last decades, the world has witnessed a dramatic increase in allergy prevalence. Epidemiological evidence shows that growing up on a farm is a protective factor, which is partly explained by the consumption of raw cow's milk. Indeed, recent studies show inverse associations between raw cow's milk consumption in early life and asthma, hay fever, and rhinitis. A similar association of raw cow's milk consumption with respiratory tract infections is recently found. In line with these findings, controlled studies in infants with milk components such as lactoferrin, milk fat globule membrane, and colostrum IgG have shown to reduce respiratory infections...
2018: Frontiers in Immunology
Helene F Rosenberg, Kirk M Druey
Asthma is a chronic, heterogeneous, and recurring inflammatory disease of the lower airways, with exacerbations that feature airway inflammation and bronchial hyperresponsiveness. Asthma has been modeled extensively via disease induction in both wild-type and genetically manipulated laboratory mice (Mus musculus). Antigen sensitization and challenge strategies have reproduced numerous important features of airway inflammation characteristic of human asthma, notably the critical roles of type 2 T helper cell cytokines...
February 16, 2018: Journal of Leukocyte Biology
William C Anderson, Stanley J Szefler
Strategies to control the risk domain of NHLBI EPR-3 (National Heart, Lung, and Blood Institute Expert Panel Report-3) asthma guidelines, which includes exacerbations requiring systemic corticosteroids, reduction in lung growth, and progressive loss of lung function, and treatment-related adverse effects, are evolving in children and adolescents. Increasing evidence demonstrates that children and adolescents with asthma are at risk of a reduction in lung growth, leading to lower lung function and potentially chronic obstructive pulmonary disease as adults...
February 2018: Seminars in Respiratory and Critical Care Medicine
G M Gauvreau, J M FitzGerald, L P Boulet, R M Watson, L Hui, H Villineuve, T X Scime, A R Schlatman, C Obminski, J Kum, S Boehme, T W Ly, K B Bacon, P M O'Byrne
BACKGROUND: CCR3 is the cognate receptor for major human eosinophil chemoattractants from the eotaxin family of proteins that are elevated in asthma and correlate with disease severity. OBJECTIVE: This proof-of-mechanism study examined the effect of AXP1275, an oral, small-molecule inhibitor of CCR3, on airway responses to inhaled allergen challenge. METHODS: Twenty-one subjects with mild atopic asthma and documented early and late asthmatic responses to an inhaled aeroallergen completed a randomized double-blind cross-over study to compare early and late allergen-induced asthmatic responses, methacholine PC20 , blood and sputum eosinophils and exhaled nitric oxide after 2 weeks of treatment with once-daily doses of AXP1275 (50 mg) or placebo...
February 9, 2018: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
Flore Amat, Chloé Plantard, Aurélien Mulliez, Isabelle Petit, Emmanuelle Rochette, Matthieu Verdan, Cécile Henquell, Guillaume Labbé, Marie Christine Heraud, Bertrand Evrard, André Labbé
To assess risk factors of recurrent bronchial obstruction and allergic sensitization 3 years after an episode of acute bronchiolitis, whether after ambulatory care treatment or hospitalization. A monocentric prospective longitudinal study including infants aged under 1 year with acute bronchiolitis was performed, with clinical (severity score), biological (serum Krebs von den Lungen 6 antigen), and viral (14 virus by naso-pharyngeal suction detection) assessments. Follow-up included a quaterly telephone interview, and a final clinical examination at 3 years...
January 30, 2018: Journal of Medical Virology
Quindelyn S Cook, A Wesley Burks
Food allergy is a significant public health problem, with no suitable treatments available for patients. Currently, patients are limited to avoidance and the use of readily available emergency medications. Immunotherapy is an appealing therapeutic strategy for inducing tolerance. Studies with whole native allergens have demonstrated the efficacy of immunotherapy for food allergy; however, the risk of IgE-mediated reactions with such treatment is significant. Advances in molecular biology techniques, including purification, sequencing, and cloning, have allowed researchers to identify specific allergen components and T cell binding epitopes...
January 24, 2018: Clinical Reviews in Allergy & Immunology
Anya C Jones, Niamh M Troy, Elisha White, Elysia M Hollams, Alexander M Gout, Kak-Ming Ling, Anthony Kicic, Stephen M Stick, Peter D Sly, Patrick G Holt, Graham L Hall, Anthony Bosco
Atopic asthma is a persistent disease characterized by intermittent wheeze and progressive loss of lung function. The disease is thought to be driven primarily by chronic aeroallergen-induced type 2-associated inflammation. However, the vast majority of atopics do not develop asthma despite ongoing aeroallergen exposure, suggesting additional mechanisms operate in conjunction with type 2 immunity to drive asthma pathogenesis. We employed RNA-Seq profiling of sputum-derived cells to identify gene networks operative at baseline in house dust mite-sensitized (HDMS) subjects with/without wheezing history that are characteristic of the ongoing asthmatic state...
January 24, 2018: Scientific Reports
A M Aguiar-Santos, S Montenegro, Z Medeiros, A Rocha, C N L Morais, A R Silva, C Bonfim, T R Costa, E S C Sarinho
BACKGROUND: Although it is well known that allergic diseases involve a strong Th2 immune response, with production of high levels of specific IgE allergen, knowledge on the association between filarial infection and allergies, among paediatric patients is scarce. OBJECTIVE: To evaluate the allergic response patterns in cases of filarial infection by comparing peripheral eosinophils, total IgE levels, immediate hypersensitivity and cytokine levels in children and adolescents in Brazil...
January 20, 2018: Allergologia et Immunopathologia
Shaina M Willen, Mark Rodeghier, Robert C Strunk, Leonard B Bacharier, Carol L Rosen, Fenella J Kirkham, Michael R DeBaun, Robyn T Cohen
Asthma is associated with higher rates of acute chest syndrome (ACS) and vaso-occlusive pain episodes among children with sickle cell anaemia (SCA). Aeroallergen sensitization is a risk factor for asthma. We hypothesized that aeroallergen sensitization is associated with an increased incidence of hospitalizations for ACS and pain. Participants in a multicentre, longitudinal cohort study, aged 4-18 years with SCA, underwent skin prick testing to ten aeroallergens. ACS and pain episodes were collected from birth until the end of the follow-up period...
January 24, 2018: British Journal of Haematology
Jesus R Guajardo, Melissa A Zegarra-Bustamante, Edward G Brooks
Eosinophilic esophagitis is an atopic disease defined clinically by esophageal symptoms in combination with a dense esophageal eosinophilia. EoE is triggered and maintained by exposure to certain foods and it is known that dietary modification controls symptoms and achieves disease remission. Recently, aeroallergens have been implicated in the pathogenesis of EoE. To examine the role of aeroallergens in EoE, we reviewed the published literature. Sensitization and production of IgE antibodies to foods and aeroallergens in subjects with EoE has been demonstrated...
January 22, 2018: Clinical Reviews in Allergy & Immunology
M D'Amato, L Cecchi, I Annesi-Maesano, G D'Amato
The rising frequency of obstructive respiratory diseases,in particular allergic asthma, observed over the last years, can be partially explained by changes occurring in the environment, with increasing presence in atmosphere of chemical (particulate matter and gaseous components such as nitrogen dioxide and ozone) and biologic (aeroallergens) trigger factors. Aeroallergens are able to stimulate, in allergic subjects, the airways' sensitization, inducing symptoms of bronchial asthma. Over the last 50 years, global earth's temperature has markedly risen likely because of growing emission of anthropogenic greenhouse gas concentrations...
January 17, 2018: Journal of Investigational Allergology & Clinical Immunology
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