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Childhood asthma

Oluwafemi Oluwole, Donna C Rennie, Ambikaipakan Senthilselvan, Roland Dyck, Anna Afanasieva, Shelley Kirychuk, George Katselis, Joshua A Lawson
BACKGROUND: Studies have reported protective and adverse associations between microbial exposure and childhood asthma. However, among children with asthma the relationships between endotoxin and exercise-induced bronchospasm (EIB) is less clear. OBJECTIVE: We investigated the association between exposure to endotoxin in house dust with atopy and EIB in children with asthma. METHODS: A cross-sectional survey was conducted among schoolchildren (aged 7-17 years) in the province of Saskatchewan, Canada...
March 16, 2018: Environmental Research
Mari Saito, Yutaka Kikuchi, Alan Kawarai Lefor, Wakamichi Shimamura
BACKGROUND: Allergen sensitization differs according to countries and regions. Understanding the characteristics of allergen sensitization in one's own country is useful for the treatment of patients with allergic diseases. Recently, Japanese cedar pollen (JCP) sensitization is increasing in young Japanese children. Therefore, we evaluated allergen sensitization patterns in under 60-month-old Japanese recurrent wheezers using multiple allergen tests. METHODS: Allergen tests for 204 Japanese recurrent wheezers between April 2010 and April 2016 were reviewed...
2018: Arerugī, [Allergy]
Sophie Laffont, Eve Blanquart, Jean-Charles Guéry
Allergic asthma is a chronic pulmonary inflammatory disease initiated by exposure to normally harmless allergens and marked by bronchial hyperreactivity. It affects more than 300 million people worldwide. Asthma often starts in childhood. Epidemiological studies show that there are sexual disparities in the prevalence and severity of asthma. Before the age of 10, the disease is more common in boys. This tendency reverses at puberty suggesting a regulating role of the sex hormones. In this synthesis, we summarize current knowledge on the role of sex hormones in allergic inflammation, with a particular focus on the impact of androgens on the development and function of recently introduced group 2 innate lymphoid cell subsets (ILC2) as critical actors in the initiation of allergic responses...
March 2018: Médecine Sciences: M/S
Shoichiro Taniuchi, Kazuhiko Soejima, Yasuko Hatano, Masaya Takahashi, Hirotaka Minami
The incidence of atopic diseases, including atopic dermatitis (AD), food allergies, allergic rhinitis, and asthma, has increased in recent decades, and currently affects approximately 20% of the population. Atopic march is the development of AD in infancy and subsequent food allergies, allergic rhinitis, and asthma in later childhood. Patients with infantile eczema may develop typical symptoms of AD, allergic rhinitis, and asthma at certain ages. Some patients' symptoms persist for several years, whereas others may have resolution with aging...
2018: Journal of Nippon Medical School, Nippon Ika Daigaku Zasshi
Silvia de Souza Campos Fernandes, Dirceu Solé, Paulo Camargos, Cláudia Ribeiro de Andrade, Cássio da Cunha Ibiapina
OBJECTIVE: To evaluate risk factors associated with asthma symptoms in adolescents in the 13- to 14-year age bracket. METHODS: This was a cross-sectional study involving adolescents enrolled in randomly selected public schools in the city of Belo Horizonte, Brazil, and conducted with the use of the International Study of Asthma and Allergies in Childhood (ISAAC) questionnaire and its supplementary module for risk factor assessment. The ISAAC questionnaire was completed by the students themselves, whereas the supplementary questionnaire was completed by their parents or legal guardians...
January 2018: Jornal Brasileiro de Pneumologia: Publicaça̋o Oficial da Sociedade Brasileira de Pneumologia e Tisilogia
Cynthia Kanagaratham, Victoria Chiwara, Bianca Ho, Sanny Moussette, Mina Youssef, David Venuto, Lucie Jeannotte, Guillaume Bourque, Juan Bautista de Sanctis, Danuta Radzioch, Anna K Naumova
The human chromosomal region 17q12-q21 is one of the best replicated genome-wide association study loci for childhood asthma. The associated SNPs span a large genomic interval that includes several protein-coding genes. Here, we tested the hypothesis that the zona pellucida-binding protein 2 (ZPBP2) gene residing in this region contributes to asthma pathogenesis using a mouse model. We tested the lung phenotypes of knock-out (KO) mice that carry a deletion of the Zpbp2 gene. The deletion attenuated airway hypersensitivity (AHR) in female, but not male, mice in the absence of allergic sensitization...
March 13, 2018: Mammalian Genome: Official Journal of the International Mammalian Genome Society
Qiong Wu, Christina Dalman, Håkan Karlsson, Glyn Lewis, David P J Osborn, Renee Gardner, Joseph F Hayes
Background: Mounting evidence implicates early life and prenatal immune disturbances in the etiology of severe mental illnesses. Asthma is a common illness associated with chronic aberrant immune responses. We aimed to determine if asthma in childhood and parents is associated with bipolar and schizophrenia spectrum disorders. Methods: A cohort study including all children born in Sweden 1973-1995 (N > 2 million) assessing associations between childhood hospitalization for asthma, parental asthma during and pre-pregnancy, and subsequent bipolar and schizophrenia spectrum disorders...
March 9, 2018: Schizophrenia Bulletin
Nancy E Abarca, Aris C Garro, Deborah N Pearlman
OBJECTIVE: To investigate if duration of supplemental breastfeeding is associated with a lower asthma risk and whether adverse childhood experiences (ACEs) early in life influence this relationship in children ages 3 to 5 years. METHODS: Data were from the 2011-2012 National Survey of Children's Health, a nationally representative cross-sectional survey. Modified Poisson regression models were used to estimate incident risk ratios (IRR) for lifetime and current asthma in young children aged 3 to 5 years (n = 15,642)...
March 13, 2018: Journal of Asthma: Official Journal of the Association for the Care of Asthma
Tiago Bittencourt de Oliveira, Everton Andrei Klering, Ana Beatriz Gorini da Veiga
OBJECTIVE: Respiratory infections cause high morbidity and mortality worldwide. This study aims to estimate the relationship between allergic respiratory diseases with the occurrence of recurrent respiratory infection (RRI) in children and adolescents. METHODS: The International Study of Asthma and Allergies in Childhood questionnaire and a questionnaire that provides data on the history of respiratory infections and the use of antibiotics were used to obtain data from patients...
March 13, 2018: Journal of Asthma: Official Journal of the Association for the Care of Asthma
Cristina Ardura-Garcia, Paul Garner, Philip J Cooper
Introduction: High asthma prevalence in Latin-American cities is thought to be caused by poor hygiene and infections. This contradicts the widely accepted 'hygiene hypothesis' for asthma aetiology. Methods: Systematic review of observational studies evaluating the association between poor hygiene exposures or infections and asthma/wheeze among Latin-American children aged 4-16 years. MEDLINE, EMBASE, LILACS and CINAHL electronic databases were searched following a predefined strategy to 18 December 2017...
2018: BMJ Open Respiratory Research
Matteo Ferrando, Francesca Racca, Lorena Nascimento Girardi Madeira, Enrico Heffler, Giovanni Passalacqua, Francesca Puggioni, Niccolò Stomeo, Giorgio Walter Canonica
Abstract: Allergen immunotherapy (AIT) is the only disease-modifying treatment approved for allergic rhinitis and allergic asthma and represents a suitable therapeutic option, especially in childhood, to modify the progression of respiratory allergic diseases. Starting from the previous "generic class effect" evaluation, as testified by the numerous meta analyses, AIT is now considered a product-specific pathogenic-oriented treatment. Background: AIT was empirically proposed more than one century ago in the subcutaneous form (SCIT), but the IgE-mediated mechanism of allergy was elucidated only after 50 years of clinical use of the treatment...
2018: Clinical and Molecular Allergy: CMA
Brian Villumsen Broberg, Iris E Sommer, Michael Eriksen Benros, Birte Yding Glenthøj, Christiane Gasse, Ole Köhler-Forsberg
Glucocorticoids can have psychosis as a potential side effect, but have also been suggested to yield protective effects due to anti-inflammatory properties. Nonetheless, knowledge is sparse on the association between glucocorticoid treatment and development of psychosis, which we aimed to study in this first large-scale longitudinal study. Among all individuals born in Denmark 1995-2003 (n=597,257), we compared individuals who had redeemed ≥1 prescription for glucocorticoids to an active comparator group and a non-exposed group concerning subsequent development of schizophrenia spectrum disorders until 2013...
March 8, 2018: Schizophrenia Research
Matthew Morten, Adam Collison, Vanessa E Murphy, Daniel Barker, Christopher Oldmeadow, John Attia, Joseph Meredith, Heather Powell, Paul D Robinson, Peter D Sly, Peter G Gibson, Joerg Mattes
BACKGROUND: The single-centre double-blind, randomised controlled Managing Asthma in Pregnancy (MAP) trial in Newcastle, Australia, compared a treatment algorithm using the fraction of exhaled nitric oxide (FeNO) in combination with asthma symptoms (FeNO group) against a treatment algorithm using clinical symptoms only (clinical group) in pregnant asthmatic women (ANZ Clinical Trials Registry, number 12607000561482). The primary outcome was a 50% reduction in asthma exacerbations during pregnancy in the FeNO group...
March 7, 2018: Journal of Allergy and Clinical Immunology
Maria Michelle Papamichael, Som Kumar Shrestha, Catherine Itsiopoulos, Bircan Erbas
BACKGROUND: The evidence is mixed on the use of long chain omega 3 fatty acids in the prevention and management of childhood asthma. METHODS: We conducted a systematic search and meta-analysis investigating the role of fish intake, the main dietary source of long chain omega-3 fatty acids, on asthma in children. RESULTS: A total of 1,119 publications were identified. Twenty-three studies on fish intake in association with childhood asthma were included in the final review...
March 9, 2018: Pediatric Allergy and Immunology
Bircan Erbas, Toril Mørkve Knudsen, Christer Janson, Roy M Nilsen, Simone Accordini, Bryndis Benediktdottir, Julia Dratva, Joachim Heinrich, Debbie Jarvis, Benedcite Leynaert, Melanie C Matheson, Dan Norbäck, Francisco G Real, Chantal Raherison-Semjen, Simona Villani, S C Dharmage, C Svanes
BACKGROUND: Despite extensive knowledge of smoking effects on respiratory disease, there is no study including all age windows of exposure among ever smokers. The objective of this study was to assess the effects from smoking exposure in utero, early childhood, adolescence and adulthood on respiratory health outcomes in adult male and female ever smokers. METHODS: Respiratory health outcomes were assessed in 10,610 participants of the European Community Respiratory Health Survey (ECRHS) I who reported a history of ever smoking by questionnaire...
March 6, 2018: Environmental Research
Katariina Lajunen, Satu Kalliola, Anne Kotaniemi-Syrjänen, Seppo Sarna, L Pekka Malmberg, Anna S Pelkonen, Mika J Mäkelä
BACKGROUND: Asthma often begins early in childhood. However, the risk for persistence is challenging to evaluate. OBJECTIVE: This longitudinal study relates lung function assessed with impulse oscillometry (IOS) in preschool children to asthma in adolescence. METHODS: Lung function was measured with IOS in 255 children with asthma-like symptoms aged 4-7 years. Baseline measurements were followed by exercise challenge and bronchodilation tests...
March 6, 2018: Annals of Allergy, Asthma & Immunology
Edyta Krzych-Fałta, Konrad Furmańczyk, Aneta Tomaszewska, Dominik Olejniczak, Bolesław Samoliński, Urszula Samolińska-Zawisza
BACKGROUND: The hygiene hypothesis proposed by Strachan in the 1980s clearly emphasized the role of microorganisms in atopy prevention. OBJECTIVES: The study objective was to assess the preventive role of probiotics in patients with allergic rhinitis, bronchial asthma, atopic dermatitis, and/or food allergy. MATERIAL AND METHODS: The methods used in the study were the International Study of Asthma and Allergies in Childhood (ISAAC) questionnaires for 6-7- and 13-14-year-olds and the European Community Respiratory Health Survey II (ECRHS II) questionnaire targeted for the 20-44 age group...
January 2018: Advances in Clinical and Experimental Medicine: Official Organ Wroclaw Medical University
Osman Savran, Charlotte Suppli Ulrik
Background: Early life events may predispose to the development of chronic lung disease in adulthood. Aim: To provide an update on current knowledge of early nongenetic origins of COPD. Materials and methods: Systematic literature review was performed according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. Results: A total of 16 studies, comprising 69,365 individuals, met the predefined criteria and were included in the present review...
2018: International Journal of Chronic Obstructive Pulmonary Disease
Clare R Wall, Alistair W Stewart, Robert J Hancox, Rinki Murphy, Irene Braithwaite, Richard Beasley, Edwin A Mitchell
Diets which emphasize intakes of plant-based foods are recommended to reduce disease risk and for promoting healthy weight. The aim of this study was to examine the association between fruit, vegetables, pulses and nut intake and body mass index (BMI) across countries in adolescents (13-14 years) and children (6-7 years). Data from the International Study of Asthma and Allergies in Childhood; 77,243 children's parents and 201,871 adolescents was used to examine the association between dietary intake (Food Frequency Questionnaire) and BMI using general linear models, adjusting for country gross national index...
March 7, 2018: Nutrients
C Y Tian, L Sha, C H Liu, Y Q Luo, S Li, M Y Zhao, W Wang, Y Z Chen
Objective: To understand the outcome of asthma in children from urban area of Beijing and the factors associated with the outcome. Methods: A total of 497 children with asthma diagnosed in the epidemiological survey of childhood asthma in urban area of Beijing in 2010 were selected in this study. Telephone follow-up was conducted in 2016 to obtain information about asthma attack, emergency visit, hospitalization, medication and disease control, and data of comorbidities of allergic diseases from 1 year earlier...
March 2, 2018: Zhonghua Er Ke za Zhi. Chinese Journal of Pediatrics
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