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https://www.readbyqxmd.com/read/29149827/therapeutic-applications-of-capsaicin-in-upper-airways
#1
Carlo Cavaliere, Simonetta Masieri, Franco Cavaliere
Capsaicin (8-methyl-N-vanillyl-6-nonenamide) is the substance responsible of the irritation caused by the contact of chili peppers with the skin or mucous membranes. This protoalkaloid acts by stimulating the transient receptor potential cation channel subfamily V member 1 (TRPV1), which is mainly expressed by nociceptive fibers of peripheral sensory neurons, but is also present in the central nervous system, and in some non-neuronal cells. Following the initial, intense neuronal excitation, a brief refractory period occurs...
November 17, 2017: Current Drug Targets
https://www.readbyqxmd.com/read/29140397/progress-in-the-understanding-of-the-pathology-of-allergic-asthma-and-the-potential-of-fruit-proanthocyanidins-as-modulators-of-airway-inflammation
#2
REVIEW
Sara L Coleman, Odette M Shaw
Allergic asthma is a chronic inflammatory lung disease characterized by sensitization of the airways, and the development of immunoglobulin E antibodies, to benign antigens. The established pathophysiology of asthma includes recurrent lung epithelial inflammation, excessive mucus production, bronchial smooth muscle hyperreactivity, and chronic lung tissue remodeling, resulting in reversible airflow restriction. Immune cells, including eosinophils and the recently characterized type 2 innate lymphoid cells, infiltrate into the lung tissue as part of the inflammatory response in allergic asthma...
November 15, 2017: Food & Function
https://www.readbyqxmd.com/read/29121401/mp29-02-reduces-nasal-hyperreactivity-and-nasal-mediators-in-patients-with-house-dust-mite-allergic-rhinitis
#3
Inge Kortekaas Krohn, Ina Callebaut, Yeranddy A Alpizar, Brecht Steelant, Laura Van Gerven, Per Stahl Skov, Ahmad Kasran, Karel Talavera, Mira M Wouters, Jan L Ceuppens, Sven F Seys, Peter W Hellings
BACKGROUND: Nasal hyperreactivity (NHR) is an important clinical feature of allergic rhinitis (AR). The efficacy of MP29-02 (azelastine hydrochloride (AZE) and fluticasone propionate (FP)) nasal spray on local inflammatory mediators and NHR in AR is unknown. We tested if MP29-02 decreases inflammatory mediators and NHR in AR and if this effect is due to restoration of nasal epithelial barrier function. METHODS: A 4-week double-blinded placebo-controlled trial with MP29-02 treatment was conducted in 28 patients with house dust mite (HDM) AR...
November 9, 2017: Allergy
https://www.readbyqxmd.com/read/29111218/the-notch-pathway-inhibitor-sahm1-abrogates-the-hallmarks-of-allergic-asthma
#4
Alex KleinJan, Irma Tindemans, Jeffrey E Montgomery, Melanie Lukkes, Marjolein J W de Bruijn, Menno van Nimwegen, Ingrid Bergen, Raymond E Moellering, Henk C Hoogsteden, Louis Boon, Derk Amsen, R W Hendriks
BACKGROUND: The Notch signaling pathway has been implicated in the pathogenesis of allergic airway inflammation. Targeting the active Notch transactivation complex by the cell-permeable, hydrocarbon-stapled synthetic peptide SAHM1 was results in genome-wide suppression of Notch-activated genes in leukemic cells and other models. However, efficacy of SAHM1 in allergic asthma models has remained unexplored. OBJECTIVE: We aimed to investigate therapeutic efficacy of SAHM1 in a house dust mite (HDM)-driven asthma model...
October 27, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/29093714/toll-like-receptor-4-is-essential-for-the-expression-of-sphingosine-1-phosphate-dependent-asthma-like-disease-in-mice
#5
Fiorentina Roviezzo, Rosalinda Sorrentino, Michela Terlizzi, Maria Antonietta Riemma, Valentina Mattera Iacono, Antonietta Rossi, Giuseppe Spaziano, Aldo Pinto, Bruno D'Agostino, Giuseppe Cirino
Sphingosine-1-phosphate (S1P) levels significantly increase in bronchoalveolar lavage (BAL) of asthmatic patients following segmental allergen challenge and this increase well correlates with pulmonary inflammation. Epidemiological, genetic, clinical, and experimental data indicate a potential for the toll-like receptor 4 (TLR4) to initiate and exacerbate allergic airway diseases. The aim of this study was to evaluate the contribution of TLR4 in S1P-dependent asthma-like disease in mice. BALB/c or TLR4 defective (C3H/HeJ) mice received S1P (10 ng/mouse), LPS (0...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/29048949/discovering-pediatric-asthma-phenotypes-based-on-response-to-controller-medication-using-machine-learning
#6
Mindy K Ross, Jinsung Yoon, Auke van der Schaar, Mihaela van der Schaar
RATIONALE: Pediatric asthma has variable underlying inflammation and symptom control. Approaches to address this heterogeneity such as clustering methods to find phenotypes and predicting outcomes have been investigated. However, clustering based upon the relationship between treatment and clinical outcome has not been performed. Also, machine learning approaches for long-term outcome prediction in pediatric asthma have not been studied in depth. OBJECTIVES: Our objectives were to use our novel machine learning algorithm, Predictor Pursuit (PP) to discover pediatric asthma phenotypes based on treatment response to different asthma controller medications, to predict outcomes of children with asthma over time, and to identify the most indicative features of asthma control for the discovered pediatric phenotypes...
October 19, 2017: Annals of the American Thoracic Society
https://www.readbyqxmd.com/read/29042799/asthma-symptoms-mannitol-reactivity-and-exercise-induced-bronchoconstriction-in-adolescent-swimmers-versus-tennis-players
#7
Kerstin Romberg, Ellen Tufvesson, Leif Bjermer
BACKGROUND: Strenuous physical activity at an elite level is associated with an increased risk for asthma and, in some sports, also prevalence of allergies. The aim of this study was to investigate the prevalence of asthma and allergy among elite swimmers and tennis players and compare airway hyperreactivity to mannitol and exercise. MATERIALS AND METHODS: One hundred and one adolescent swimmers and 86 tennis players answered a questionnaire about respiratory symptoms and allergy and performed mannitol challenge and sport-specific exercise challenge...
2017: Journal of Asthma and Allergy
https://www.readbyqxmd.com/read/29033571/bronchial-thermoplasty-and-the-role-of-airway-smooth-muscle-are-we-on-the-right-direction
#8
REVIEW
Francesco Menzella, Mirco Lusuardi, Carla Galeone, Nicola Facciolongo
Asthma is characterized by inflammation of the airways that includes eosinophils, basal membrane thickening, epithelial sloughing, vascular changes, smooth muscle hypertrophy and hyperplasia, and mucous gland hyperplasia. Recently, there have been studies on the role of hypersensitivity and inflammation in asthma, but the role of bronchial smooth muscle remains unclear. Bronchial thermoplasty is an endoscopic procedure that is approved by the US Food and Drug Administration (FDA) for the treatment of severe refractory asthma, based on the local delivery of radio frequency at 65°C to the airways, with the aim of controlling bronchospasm through a reduction of airway smooth muscle (ASM)...
2017: Therapeutics and Clinical Risk Management
https://www.readbyqxmd.com/read/29026003/neutralization-of-either-il-17a-or-il-17f-is-sufficient-to-inhibit-house-dust-mite-induced-allergic-asthma-in-mice
#9
Pauline Chenuet, Louis Fauconnier, Fahima Madouri, Tiffany Marchiol, Nathalie Rouxel, Aurélie Ledru, Pascal Mauny, Rachel Lory, Catherine Uttenhove, Jacques van Snick, Yoichiro Iwakura, Franco di Padova, Valérie Quesniaux, Dieudonnée Togbe, Bernhard Ryffel
T helper (Th)17 immune response participates in allergic lung inflammation and asthma is reduced in the absence of interleukin (IL)-17 in mice. Since IL-17A and IL-17F are induced and bind the shared receptor IL-17RA, we asked whether both IL-17A and IL-17F contribute to house dust mite (HDM) induced asthma. We report that allergic lung inflammation is attenuated in absence of either IL-17A or IL-17F with reduced airway hyperreactivity, eosinophilic inflammation, goblet cell hyperplasia, cytokine and chemokine production as found in absence of IL-17RA...
October 15, 2017: Clinical Science (1979-)
https://www.readbyqxmd.com/read/29017959/8-isoprostane-is-an-early-biomarker-for-oxidative-stress-in-chlorine-induced-acute-lung-injury
#10
Linda Elfsmark, Lina Ågren, Christine Akfur, Anders Bucht, Sofia Jonasson
Inhalation of chlorine (Cl2) may cause oxidative acute lung injury (ALI) characterized by pulmonary edema, pneumonitis, and hyperreactive airways. The aim of the study was to identify possible biomarkers for Cl2-induced ALI. Female BALB/c mice were exposed to Cl2 for 15min using two protocols 1) concentration-dependent response (25-200ppm) and 2) time-kinetics (2h-14days post-exposure). Exposure to 50-200ppm Cl2 caused a concentration-dependent inflammatory response with increased expression of IL-1β, IL-6 and CXCL1/KC in bronchoalveolar lavage fluid 2-6h after exposure which was followed by increased lung permeability and a neutrophilic inflammation 12-24h post-exposure...
October 7, 2017: Toxicology Letters
https://www.readbyqxmd.com/read/28992358/role-of-galectin-3-in-the-pathophysiology-underlying-allergic-lung-inflammation-in-a-timp-1-knockout-model-of-murine-asthma
#11
Manoj J Mammen, Mark F Sands, Elaine Abou-Jaoude, Ravikumar Aalinkeel, Jessica L Reynolds, Neil U Parikh, Umesh Sharma, Stanley A Schwartz, Supriya D Mahajan
Asthma is a chronic inflammatory respiratory disease characterized by airway inflammation, airway hyper-responsiveness and reversible airway obstruction. Understanding the mechanisms that underlie the various endotypes of asthma could lead to novel and more personalized therapies for individuals with asthma. Utilizing a Tissue inhibitors of metalloproteinase-1 (TIMP-1) knockout murine allergic asthma model, we previously showed that Tissue inhibitors of metalloproteinase-1 deficiency results in an asthma phenotype, exhibiting airway hyperreactivity, enhanced eosinophilic inflammation, and TH2 cytokine gene and protein expression following sensitization with ovalbumin...
October 9, 2017: Immunology
https://www.readbyqxmd.com/read/28984468/tgf-%C3%AE-1-evokes-human-airway-smooth-muscle-cell-shortening-and-hyperresponsiveness-via-smad3
#12
Christie A Ojiaku, Gaoyuan Cao, Wanqu Zhu, Edwin J Yoo, Maya Shumyatcher, Blanca E Himes, Steven S An, Reynold A Panettieri
Transforming growth factor beta 1 (TGF-β1), a cytokine whose levels are elevated in the airways of patients with asthma, perpetuates airway inflammation and modulates airway structural cell remodeling. However, the role of TGF-β1 in excessive airway narrowing in asthma, or airway hyperresponsiveness (AHR), remains unclear. In this study, we set out to investigate the direct effects of TGF-β1 on human airway smooth muscle (HASM) cell shortening and hyperresponsiveness. The dynamics of AHR and single-cell excitation-contraction (E-C) coupling were measured in human precision-cut lung slices (hPCLS) and in isolated HASM cells using supravital microscopy and magnetic twisting cytometry (MTC), respectively...
October 6, 2017: American Journal of Respiratory Cell and Molecular Biology
https://www.readbyqxmd.com/read/28958904/activating-transcription-factor-6%C3%AE-atf6%C3%AE-regulates-airway-hyperreactivity-smooth-muscle-proliferation-and-contractility
#13
Hirotoshi Unno, Marina Miller, Peter Rosenthal, Andrew Beppu, Sudipta Das, David H Broide
No abstract text is available yet for this article.
September 27, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28939411/high-prevalence-of-severe-asthma-in-a-large-random-population-study
#14
Roxana Mincheva, Linda Ekerljung, Apostolos Bossios, Bo Lundbäck, Jan Lötvall
BACKGROUND: The prevalence of asthma severity is not well described at a population level. OBJECTIVE: To determine the prevalence of phenotypic signs of asthma severity among individuals with asthma in a general population, and to describe risk factors for asthma severity. METHODS: Epidemiological study conducted between 2008 and 2012 (West Sweden Asthma Study). A postal questionnaire was sent to random population (N = 30,000) in West Sweden, with 18,087 responses...
September 19, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28935614/randomized-trial-of-interventions-to-improve-childhood-asthma-in-homes-with-wood-burning-stoves
#15
RANDOMIZED CONTROLLED TRIAL
Curtis W Noonan, Erin O Semmens, Paul Smith, Solomon W Harrar, Luke Montrose, Emily Weiler, Marcy McNamara, Tony J Ward
BACKGROUND: Household air pollution due to biomass combustion for residential heating adversely affects vulnerable populations. Randomized controlled trials to improve indoor air quality in homes of children with asthma are limited, and no such studies have been conducted in homes using wood for heating. OBJECTIVES: Our aims were to test the hypothesis that household-level interventions, specifically improved-technology wood-burning appliances or air-filtration devices, would improve health measures, in particular Pediatric Asthma Quality of Life Questionnaire (PAQLQ) scores, relative to placebo, among children living with asthma in homes with wood-burning stoves...
September 13, 2017: Environmental Health Perspectives
https://www.readbyqxmd.com/read/28926576/receptor-for-advanced-glycation-end-products-and-world-trade-center-particulate-induced-lung-function-loss-a-case-cohort-study-and-murine-model-of-acute-particulate-exposure
#16
Erin J Caraher, Sophia Kwon, Syed H Haider, George Crowley, Audrey Lee, Minah Ebrahim, Liqun Zhang, Lung-Chi Chen, Terry Gordon, Mengling Liu, David J Prezant, Ann Marie Schmidt, Anna Nolan
World Trade Center-particulate matter(WTC-PM) exposure and metabolic-risk are associated with WTC-Lung Injury(WTC-LI). The receptor for advanced glycation end-products (RAGE) is most highly expressed in the lung, mediates metabolic risk, and single-nucleotide polymorphisms at the AGER-locus predict forced expiratory volume(FEV). Our objectives were to test the hypotheses that RAGE is a biomarker of WTC-LI in the FDNY-cohort and that loss of RAGE in a murine model would protect against acute PM-induced lung disease...
2017: PloS One
https://www.readbyqxmd.com/read/28921663/insect-bite-hypersensitivity-in-horses-is-associated-with-airway-hyperreactivity
#17
S Lanz, A Brunner, C Graubner, E Marti, V Gerber
BACKGROUND: Genetic and epidemiologic evidence suggests that in horses, as in other species, different manifestations of hypersensitivity may occur together. HYPOTHESIS: Horses affected with insect bite hypersensitivity (IBH) show airway hyperreactivity (AH) to inhaled histamine, even in the absence of overt clinical signs of equine asthma (EA). ANIMALS: Twenty-two healthy controls (group C), 24 horses suffering from IBH alone (group IBH), and 23 horses suffering from IBH and EA (group IBH/EA)...
September 18, 2017: Journal of Veterinary Internal Medicine
https://www.readbyqxmd.com/read/28904224/targeted-inhibition-of-gq-signaling-induces-airway-relaxation-in-mouse-models-of-asthma
#18
Michaela Matthey, Richard Roberts, Alexander Seidinger, Annika Simon, Ralf Schröder, Markus Kuschak, Suvi Annala, Gabriele M König, Christa E Müller, Ian P Hall, Evi Kostenis, Bernd K Fleischmann, Daniela Wenzel
Obstructive lung diseases are common causes of disability and death worldwide. A hallmark feature is aberrant activation of Gq protein-dependent signaling cascades. Currently, drugs targeting single G protein (heterotrimeric guanine nucleotide-binding protein)-coupled receptors (GPCRs) are used to reduce airway tone. However, therapeutic efficacy is often limited, because various GPCRs contribute to bronchoconstriction, and chronic exposure to receptor-activating medications results in desensitization. We therefore hypothesized that pharmacological Gq inhibition could serve as a central mechanism to achieve efficient therapeutic bronchorelaxation...
September 13, 2017: Science Translational Medicine
https://www.readbyqxmd.com/read/28878137/cf-airway-smooth-muscle-transcriptome-reveals-a-role-for-pyk2
#19
Daniel P Cook, Ryan J Adam, Keyan Zarei, Benjamin Deonovic, Mallory R Stroik, Nicholas D Gansemer, David K Meyerholz, Kin Fai Au, David A Stoltz
Abnormal airway smooth muscle function can contribute to cystic fibrosis (CF) airway disease. We previously found that airway smooth muscle from newborn CF pigs had increased basal tone, an increased bronchodilator response, and abnormal calcium handling. Since CF pigs lack airway infection and inflammation at birth, these findings suggest intrinsic airway smooth muscle dysfunction in CF. In this study, we tested the hypothesis that CFTR loss in airway smooth muscle would produce a distinct set of changes in the airway smooth muscle transcriptome that we could use to develop novel therapeutic targets...
September 7, 2017: JCI Insight
https://www.readbyqxmd.com/read/28840001/bronchial-hyperreactivity-in-perimenstrual-asthma-is-associated-with-increased-th-2-response-in-lower-airways
#20
Szymon Skoczynski, Aleksandra Semik-Orzech, Ewa Sozanska, Wojciech Szanecki, Krzysztof Kołodziejczyk, Igor Radziewicz-Winnicki, Andrzej Witek, Władysław Pierzchała, Adam Barczyk
BACKGROUND: Perimenstrual asthma (PMA) is a commonly observed, usually difficult-to-treat asthma phenotype. The mechanisms underlying this phenomenon remain unexplained. The aim of the study was to assess the degree of airway hyperresponsiveness and its relationship to proinflammatory cytokines concentration in lower airways of PMA compared to non-PMA patients. METHODS: Premenopausal women with regular menstrual cycles diagnosed as: PMA (n=12), non-PMA asthmatics (n=9), and healthy controls (n=10) were prospectively followed for 10 weeks over two consecutive menstrual cycles...
July 2017: Journal of Thoracic Disease
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