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Non-allergic asthma

Deborah G Loman, Christina G Kwong, Lisa D Henry, Christina Mahl, Lisa Meadows, Alysa G Ellis
OBJECTIVE: To examine the relationship between body mass index (BMI), gender, age, controller medication use, household smoke exposure, season, and allergic rhinitis status with asthma control in a group of lower income, African American children. We hypothesized that non-obese children would have better asthma control. METHODS: Baseline data from a longitudinal study of children in a school-based asthma program in a Midwest urban area were analyzed. 360 children, ages 4-15 years, who were enrolled in either the 2012-2013 or 2013-2014 program were included...
October 18, 2016: Journal of Asthma: Official Journal of the Association for the Care of Asthma
Cecilia K Andersson, Alexandra Adams, Prasad Nagakumar, Cara Bossley, Atul Gupta, Daphne De Vries, Afiqah Adnan, Andrew Bush, Sejal Saglani, Clare M Lloyd
BACKGROUND: Neutrophils and IL-17A have been linked mechanistically in models of allergic airways disease and have been associated with asthma severity. However, their role in paediatric asthma is unknown. OBJECTIVES: To investigate the role of neutrophils and the IL-17A pathway in mediating paediatric severe therapy resistant asthma (STRA). METHODS: Children with STRA (n=51, age 12.6 (6 -16.3) years) and non-asthmatic controls (n=15, age 4...
October 13, 2016: Journal of Allergy and Clinical Immunology
Ritesh Agarwal, Inderpaul S Sehgal, Sahajal Dhooria, Ashutosh N Aggarwal
Allergic bronchopulmonary aspergillosis (ABPA) is a complex pulmonary disorder characterized by recurrent episodes of wheezing, fleeting pulmonary opacities and bronchiectasis. It is the most prevalent of the Aspergillus disorders with an estimated five million cases worldwide. Despite six decades of research, the pathogenesis, diagnosis and treatment of this condition remains controversial. The International Society for Human and Animal Mycology has formed a working group to resolve the controversies around this entity...
October 17, 2016: Expert Review of Respiratory Medicine
Kazuaki Okawa, Misa Ohno, Akinori Kashimura, Masahiro Kimura, Yuki Kobayashi, Masayoshi Sakaguchi, Yasusato Sugahara, Minori Kamaya, Yoshihiro Kino, Peter O Bauer, Fumitaka Oyama
Acidic mammalian chitinase (AMCase) is implicated in asthma, allergic inflammation, and food processing. Little is known about genetic and evolutional regulation of chitinolytic activity of AMCase. Here, we relate human AMCase polymorphisms to the mouse AMCase, and show that the highly active variants encoded by nonsynonymous single-nucleotide polymorphisms (nsSNPs) are consistent with the mouse AMCase sequence. The chitinolytic activity of the recombinant human AMCase was significantly lower than that of the mouse counterpart...
October 4, 2016: Molecular Biology and Evolution
Rafael S Grajewski, Niusha Barahmand Pour, Katja Burian, Albert Caramoy, Bernd Kirchhof, Claus Cursiefen, Ludwig M Heindl
PURPOSE: The inappropriate immune response to harmless foreign and self-antigens is a common feature of allergy, atopy and autoimmune disease. The influence of environmental factors in the initiation of autoimmunity is not well understood. It is conceivable that immune responses to allergens may also serve as a trigger of bystander immune reactions, including autoimmunity such as uveitis. Therefore, we wanted to investigate the prevalence of allergies and atopy in patients with different types of uveitis in comparison to a control cohort...
September 29, 2016: Acta Ophthalmologica
Dan Xu, Yingshuo Wang, Zhimin Chen, Shuxian Li, Yungai Cheng, Li Zhang, Lingzhi Zhao
BACKGROUND: Asthma is a global problem. Prevalence varies among different countries and cities. We aimed to obtain the prevalence, describe the characteristics, and discover factors that may relate to asthma in Hangzhou. METHODS: This cross-sectional study was conducted in Hangzhou. The subjects were children aged 14 years and younger. A control group of non-asthma children that matched in age and sex with each asthmatic patient was also randomly selected and interviewed...
September 27, 2016: Respiratory Research
B Campbell, C Raherison, C J Lodge, A J Lowe, T Gislason, J Heinrich, J Sunyer, F Gómez Real, D Norbäck, M C Matheson, M Wjst, J Dratva, R de Marco, D Jarvis, V Schlünssen, C Janson, B Leynaert, C Svanes, S C Dharmage
RATIONALE: Evidence has suggested that exposure to environmental or microbial biodiversity in early life may impact subsequent lung function and allergic disease risk. OBJECTIVES: To investigate the influence of childhood living environment and biodiversity indicators on atopy, asthma and lung function in adulthood. METHODS AND MEASUREMENTS: The European Community Respiratory Health Survey II investigated ∼10 201 participants aged 26-54 years from 14 countries, including participants' place of upbringing (farm, rural environment or inner city) before age 5 years...
September 26, 2016: Thorax
Carlos Iribarren, Abdelkader Rahmaoui, Aidan A Long, Stanley J Szefler, Mary S Bradley, Gillis Carrigan, Mark D Eisner, Hubert Chen, Theodore A Omachi, Michael E Farkouh, Kenneth J Rothman
BACKGROUND: EXCELS was a postmarketing commitment to the US Food and Drug Administration to assess long-term safety of omalizumab in an observational setting, focusing predominantly on malignancies. OBJECTIVE: To examine a potential association between omalizumab and cardiovascular (CV)/cerebrovascular (CBV) events in EXCELS. METHODS: Cohort study of patients (≥12 years of age) with moderate-to-severe allergic asthma followed ≤5 years, treated with omalizumab (n = 5007) or not treated with omalizumab (n = 2829) at baseline...
September 14, 2016: Journal of Allergy and Clinical Immunology
Tim Koopmans, Stijn Crutzen, Mark H Menzen, Andrew J Halayko, Tillie-Louise Hackett, Darryl A Knight, Reinoud Gosens
BACKGROUND AND PURPOSE: Asthma is a heterogeneous chronic inflammatory disease, characterized by the development of structural changes (airway remodelling). β-catenin, a transcriptional co-activator is fundamentally involved in airway smooth muscle growth, and may be a potential target in the treatment of airway smooth muscle remodelling. EXPERIMENTAL APPROACH: Using small-molecule compounds that selectively target β-catenin breakdown or its interactions with transcriptional co-activators, we assessed their ability to inhibit airway smooth muscle remodelling in vitro and in vivo...
September 15, 2016: British Journal of Pharmacology
Matteo Ferrando, Diego Bagnasco, Giovanni Passalacqua, Gilda Varricchi, Giorgio Walter Canonica
INTRODUCTION: Since its introduction in clinical practice one century ago for the treatment of respiratory allergic diseases, allergen-specific immunotherapy (AIT) has exhibited a relevant clinical efficacy that was subsequently confirmed in controlled trials. Thus, AIT has been accepted worldwide, as testified by guidelines and international documents. AIT is considered pivotal in the management of allergic rhinitis with or without conjunctivitis and with or without asthma. These conditions, in addition to hymenoptera venom allergy, currently are the accepted indications...
September 19, 2016: Expert Opinion on Biological Therapy
Hern-Tze Tina Tan, Kazunari Sugita, Cezmi A Akdis
PURPOSE OF REVIEW: The development of biological therapies has rapidly progressed during the last few years, and major advances were reported for the treatment of allergic diseases, such as atopic dermatitis, allergic rhinitis, urticaria, food allergy, and asthma. Here, we review biologicals targeting the type 2 immune response involving Th2 cells, type 2 innate lymphoid cells, natural killer T cells, mast cells, basophils, and epithelial cells, such as IL-4, IL-5, IL-13, IL-31, tumor necrosis factor alpha (TNF-α), and thymic stromal lymphopoietin (TSLP)...
October 2016: Current Allergy and Asthma Reports
Chieh-Hsin Wu, Zi-Hao Zhang, Ming-Kung Wu, Chiu-Huan Wang, Ying-Yi Lu, Chih-Lung Lin
BACKGROUND: Osteoporosis and migraine are both important public health problems and may have overlapping pathophysiological mechanisms. The aim of this study was to use a Taiwanese population-based dataset to assess migraine risk in osteoporosis patients. METHODS: The Taiwan National Health Insurance Research Database was used to analyse data for 40,672 patients aged ≥20 years who had been diagnosed with osteoporosis during 1996-2010. An additional 40,672 age-matched patients without osteoporosis were randomly selected as the non-osteoporosis group...
2016: SpringerPlus
Shatha A Alduraywish, Marie Standl, Caroline J Lodge, Michael J Abramson, Katrina J Allen, Bircan Erbas, Andrea von Berg, Joachim Heinrich, Adrian J Lowe, Shyamali C Dharmage
BACKGROUND: The march from early aeroallergen sensitization to subsequent respiratory allergy is well established, but it is unclear whether early life food sensitization precedes and further increases risk of allergic airway disease. OBJECTIVE: To assess the association between food sensitization in the first 2 years of life and subsequent asthma and allergic rhinitis by age 10-12 years. METHODS: We used data from two independent cohorts: the high-risk Melbourne Atopic Cohort Study (MACS) (n = 620) and the population-based LISAplus (n = 3094)...
September 3, 2016: Pediatric Allergy and Immunology
Ashleigh A Olson, Michael D Evans, Mats W Johansson, Chloe H Kim, David M Manthei, Eric A Gaumnitz, Sameer K Mathur
BACKGROUND: Evaluation of IgE-mediated food sensitivity is frequently performed for patients with eosinophilic esophagitis (EoE). However, the clinical relevance of identifying IgE-mediated sensitivity to foods in adults is unclear. OBJECTIVE: To determine whether EoE associated with food or aeroallergen sensitivity represents a phenotype of EoE with distinct clinical or biological features. METHODS: A medical record review identified 257 patients with a diagnosis of EoE evaluated in the adult allergy clinic at the University of Wisconsin Hospital and Clinics from 2008 to 2013...
October 2016: Annals of Allergy, Asthma & Immunology
Eishika Dissanayake, Yuzaburo Inoue
PURPOSE OF REVIEW: MicroRNAs (miRNAs) are short, single-stranded, non-coding RNAs that are increasingly being recognized as important epigenetic regulators. They have been implicated in the pathogenesis of many diseases including cancer, cardiovascular diseases, connective tissue diseases, and neuromuscular disorders. RECENT FINDINGS: A few miRNAs have already been recognized as a core set of miRNAs important in allergic inflammation. These include let-7, miR-21, miR-142, and miR-146...
September 2016: Current Allergy and Asthma Reports
Zhihong Chen, Jue Pan, Yi Jia, Dandan Li, Zhihui Min, Xiaoqiong Su, Honglei Yuan, Geng Shen, Shengxuan Cao, Lei Zhu, Xiangdong Wang
BACKGROUND: Recent data have demonstrated that long-lived memory T cells are present in the human lung and can play significant roles in the pathogenesis of specific allergic and autoimmune diseases. However, most evidence has been obtained from mouse studies, and the potential roles of memory T cells in human allergic diseases, such as asthma, remain largely unknown. METHODS: Thirty-three asthmatics, 26 chronic obstructive pulmonary disease (COPD) patients, and 22 healthy volunteers were enrolled in this study...
August 31, 2016: Cell Biology and Toxicology
Cynthia Kanagaratham, Danuta Radzioch
Asthma is a disease that currently affects approximately 300 million people worldwide. It is generally viewed as an allergic disease and can manifest itself in a variety of phenotypes. Two of its main phenotypes routinely assessed at the clinic include airway hyperresponsiveness and IgE production. They can be measured in a non-invasive manner and have been used for genetic studies. However, the genetic complexity of asthma and its phenotypes makes it difficult to map their genetic contributors. Though human studies have been successful at mapping candidate genes for asthma phenotypes, they require large sample sizes and proper segregation of the population to control for potential confounding factors...
August 29, 2016: Current Pharmaceutical Design
Masaya Takemura, Daiki Inoue, Kazufumi Takamatsu, Ryo Itotani, Manabu Ishitoko, Minoru Sakuramoto, Motonari Fukui
BACKGROUND: Asthma and rhinitis are common diseases that often occur concomitantly. However, in patients with asthma, the concurrent assessment of seasonal variation in rhinitis and asthma symptoms has not been comprehensively addressed. We prospectively evaluated seasonal changes in rhinitis and asthma symptoms over one year. METHODS: Fifty-six patients with asthma were enrolled. Asthma and rhinitis symptoms were assessed by using the State of the Impact of Allergic Rhinitis on Asthma Control (SACRA) questionnaire, developed and validated in Japan by the committee of Global Initiative for Asthma and the committee of Allergic Rhinitis for asthma and its impact on Asthma...
September 2016: Respiratory Investigation
Cecilie Svanes, Jennifer Koplin, Svein Magne Skulstad, Ane Johannessen, Randi Jakobsen Bertelsen, Byndis Benediktsdottir, Lennart Bråbäck, Anne Elie Carsin, Shyamali Dharmage, Julia Dratva, Bertil Forsberg, Thorarinn Gislason, Joachim Heinrich, Mathias Holm, Christer Janson, Deborah Jarvis, Rain Jögi, Susanne Krauss-Etschmann, Eva Lindberg, Ferenc Macsali, Andrei Malinovschi, Lars Modig, Dan Norbäck, Ernst Omenaas, Eirunn Waatevik Saure, Torben Sigsgaard, Trude Duelien Skorge, Øistein Svanes, Kjell Torén, Carl Torres, Vivi Schlünssen, Francisco Gomez Real
BACKGROUND: Whereas it is generally accepted that maternal environment plays a key role in child health, emerging evidence suggests that paternal environment before conception also impacts child health. We aimed to investigate the association between children's asthma risk and parental smoking and welding exposures prior to conception. METHODS: In a longitudinal, multi-country study, parents of 24 168 offspring aged 2-51 years provided information on their life-course smoking habits, occupational exposure to welding and metal fumes, and offspring's asthma before/after age 10 years and hay fever...
August 25, 2016: International Journal of Epidemiology
Giuseppe Verlato, Giang Nguyen, Pierpaolo Marchetti, Simone Accordini, Alessandro Marcon, Roberto Marconcini, Roberto Bono, Alessandro Fois, Pietro Pirina, Roberto de Marco
BACKGROUND: The existence of a cause-effect relation between active smoking and new-onset asthma in adults, although supported by several studies, has not been proven yet. AIMS: We aimed to prospectively study asthma incidence as a function of smoking habits in the Italian adult population. METHODS: A population-based cohort of 5,241 non-asthmatics was enrolled in Verona and Sassari in 1998-2000. The cohort was contacted again in 2007-2009 within the Gene-Environment Interactions in Respiratory Diseases study, and 3,187 subjects (60...
2016: International Archives of Allergy and Immunology
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