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Asthma marker

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https://www.readbyqxmd.com/read/28647751/chronic-rhinosinusitis-severity-is-associated-with-need-for-asthma-related-systemic-corticosteroids
#1
K M Phillips, L P Hoehle, R W Bergmark, A P Campbell, D S Caradonna, S T Gray, A R Sedaghat
BACKGROUND: Chronic rhinosinusitis (CRS) is highly prevalent in patients with asthma. However, no study has evaluated the effect of CRS severity on asthma-related oral corticosteroid use - a marker of poor asthma control and prognosis. We therefore sought to evaluate the association between CRS severity and asthma-related oral corticosteroid use. METHODOLOGY: Prospective cross-sectional study of 110 adult asthmatic CRS patients. CRS severity was measured using the 22-item Sinonasal Outcomes Test (SNOT-22) and Lund-Kennedy endoscopy score...
June 25, 2017: Rhinology
https://www.readbyqxmd.com/read/28644028/understanding-the-effects-of-genotype-growing-year-and-breeding-on-tunisian-durum-wheat-allergenicity-part-1-the-baker-s-asthma-case
#2
Fatma Boukid, Barbara Prandi, Stefano Sforza, Rhouma Sayar, Yong Weon Seo, Mondher Mejri, Ines Yacoubi
Baker's asthma is a serious airway disease triggered by wheat proteins CM3 α-amylase/trypsin inhibitor. The purpose of the present study was to investigate the impact of genotype and crop year on allergen CM3 α-amylase/trypsin inhibitor associated to baker's asthma. A historical series of Tunisian durum wheat (100 accessions), derived from three crop years, was used to compare the amount of CM3 from landraces to advanced cultivars. CM3 protein quantification was assessed after an enzymatic cleavage of the soluble protein extracts on an UPLC/ESI-MS system, using a marker peptide for its quantification...
June 23, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28630596/association-between-hmgb1-and-asthma-a-literature-review
#3
REVIEW
Egidio Imbalzano, Sebastiano Quartuccio, Eleonora Di Salvo, Teresa Crea, Marco Casciaro, Sebastiano Gangemi
BACKGROUND: Recently, some studies demonstrated that HMGB1, as proinflammatory mediator belonging to the alarmin family, has a key role in different acute and chronic immune disorders. Asthma is a complex disease characterised by recurrent and reversible airflow obstruction associated to airway hyper-responsiveness and airway inflammation. OBJECTIVE: This literature review aims to analyse advances on HMGB1 role, employment and potential diagnostic application in asthma...
2017: Clinical and Molecular Allergy: CMA
https://www.readbyqxmd.com/read/28626990/exhaled-breath-profiles-in-the-monitoring-of-loss-of-control-and-clinical-recovery-in-asthma
#4
Paul Brinkman, Marianne A van de Pol, Marije G Gerritsen, Lieuwe D Bos, Tamara Dekker, Barbara S Smids, Anirban Sinha, Christof J Majoor, Marlous M Sneeboer, Hugo H Knobel, Teunis J Vink, Frans H de Jongh, René Lutter, Peter J Sterk, Niki Fens
BACKGROUND: Asthma is a chronic inflammatory airway disease, associated with episodes of exacerbations. Therapy with inhaled corticosteroids (ICS) targets airway inflammation, which aims to maintain and restore asthma control. Clinical features are only modestly associated with airways inflammation. Therefore, we hypothesized that exhaled volatile metabolites identify longitudinal changes between clinically stable episodes and loss of asthma control. OBJECTIVES: To determine whether exhaled volatile organic compounds (VOCs) as measured by gas-chromatography / mass-spectrometry (GC/MS) and electronic nose (eNose) technology discriminate between clinically stable and unstable episodes of asthma...
June 19, 2017: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28626774/adenosine-triphosphate-promotes-allergen-induced-airway-inflammation-and-th17-cell-polarization-in-neutrophilic-asthma
#5
Fang Zhang, Xin Su, Gang Huang, Xiao-Feng Xin, E-Hong Cao, Yi Shi, Yong Song
Adenosine triphosphate (ATP) is a key mediator to alert the immune dysfunction by acting on P2 receptors. Here, we found that allergen challenge caused an increase of ATP secretion in a murine model of neutrophilic asthma, which correlated well with neutrophil counts and interleukin-17 production. When ATP signaling was blocked by intratracheal administration of the ATP receptor antagonist suramin before challenge, neutrophilic airway inflammation, airway hyperresponsiveness, and Th17-type responses were reduced significantly...
2017: Journal of Immunology Research
https://www.readbyqxmd.com/read/28624608/obesity-s-impact-on-asthma-extends-to-diagnostic-criteria
#6
Njira Lugogo, Cynthia L Green, Noah Agada, Siyi Zhang, Susanne Meghdadpour, Run Zhou, Siyun Yang, Kevin J Anstrom, Elliot Israel, Richard Martin, Robert F Lemanske, Homer Boushey, Stephen C Lazarus, Stephen I Wasserman, Mario Castro, William Calhoun, Stephen P Peters, Emily DiMango, Vernon Chinchilli, Nikolina Icitovic, Susan Kunselman, Tonya S King, Monica Kraft
BACKGROUND: The use of inflammatory biomarkers to delineate the type of lung inflammation present in asthma is increasingly common. However, the impact of obesity on these markers is unknown. OBJECTIVES: We aimed to determine the impact of obesity on conventional markers of inflammation in asthma. METHODS: We performed secondary analysis of data from 652 patients previously enrolled in two ACRN trials. We performed linear correlations between biomarkers and logistic regression analysis to determine the predictive value of IgE, blood eosinophils and FeNO in relationship to sputum eosinophils (>2%), as well as to determine if cut points existed that would maximize the sensitivity and specificity for predicting sputum eosinophilia in the three weight groups...
June 14, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28608416/increased-prevalence-of-allergic-asthma-from-1996-to-2006-and-further-to-2016-results-from-three-population-surveys
#7
Helena Backman, Petri Räisänen, Linnea Hedman, Caroline Stridsman, Martin Andersson, Anne Lindberg, Bo Lundbäck, Eva Rönmark
BACKGROUND: During the latter half of the 20(th) century the prevalence of asthma and many other allergic diseases has increased. Information on asthma prevalence trends after 2010, especially regarding studies separating allergic asthma from non-allergic asthma is lacking. OBJECTIVE: The aim was to estimate prevalence trends of current asthma, both allergic and non-allergic, from 1996 to 2016. METHODS: Three cross-sectional samples from the same area of Sweden, 20-69 years, participated in surveys with the same questionnaire in 1996 (n=7104 participants, 85% response rate), 2006 (n=6165, 77%) and 2016 (n=5466, 53%), respectively...
June 13, 2017: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28606216/comparable-reductions-in-hyperpnoea-induced-bronchoconstriction-and-markers-of-airway-inflammation-after-supplementation-with-6%C3%A2-2-and-3%C3%A2-1-g-d-of-long-chain-n-3-pufa-in-adults-with-asthma
#8
Neil C Williams, Kirsty A Hunter, Dominick E Shaw, Kim G Jackson, Graham R Sharpe, Michael A Johnson
Although high dose n-3 PUFA supplementation reduces exercise- and hyperpnoea-induced bronchoconstriction (EIB/HIB), there are concurrent issues with cost, compliance and gastrointestinal discomfort. It is thus pertinent to establish the efficacy of lower n-3 PUFA doses. Eight male adults with asthma and HIB and eight controls without asthma were randomly supplemented with two n-3 PUFA doses (6·2 g/d (3·7 g EPA and 2·5 g DHA) and 3·1 g/d (1·8 g EPA and 1·3 g DHA)) and a placebo, each for 21 d followed by 14 d washout...
June 13, 2017: British Journal of Nutrition
https://www.readbyqxmd.com/read/28599075/increased-risk-of-asthma-in-overweight-children-born-large-for-gestational-age
#9
Leonardo A Pinto, Stefano Guerra, Josep M Anto, Dirkje Postma, Gerard H Koppelman, Johan C de Jongste, Ulrike Gehring, Henriette A Smit, Alet Wijga
BACKGROUND: Being born large for gestational age (LGA) is a marker of increased growth velocity in fetal life and a risk factor for childhood overweight. Both being born LGA and childhood overweight may influence the development of asthma, although the role of overweight in the association between LGA and childhood asthma is unclear. Importantly, recent studies have suggested that the association between overweight and asthma may be related to non-allergic pathways. If this also applies to the association between LGA and asthma, the association between being born LGA and asthma may be different for atopic and non-atopic children...
June 9, 2017: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28599074/beyond-epithelial-to-mesenchymal-transition-common-suppression-of-differentiation-programs-underlies-epithelial-barrier-dysfunction-in-mild-moderate-and-severe-asthma
#10
Lucas F Loffredo, Hiam Abdala-Valencia, Kishore R Anekalla, Lyda Cuervo-Pardo, Cara J Gottardi, Sergejs Berdnikovs
BACKGROUND: Epithelial barrier dysfunction is a central feature in the pathogenesis of allergic disease. Epithelial-to-mesenchymal transition (EMT) has been proposed as one mechanism afflicting barrier in asthma. However, genes and pathways involved in aberrant epithelial-mesenchymal signaling, and their relationship to asthma severity, are poorly understood. METHODS: We used unbiased gene network analysis to evaluate functional convergence in epithelial gene expression signatures across multiple public access transcriptomics datasets of human asthma, followed by text mining to evaluate functional marker relevance of discovered genes...
June 9, 2017: Allergy
https://www.readbyqxmd.com/read/28585516/salivary-sp-d-may-be-a-biomarker-reflecting-small-airway-inflammation-and-asthma-exacerbation
#11
S Okazaki, H Murai, S Kidoguchi, E Nomura, N Itoh, N Hashimoto, T Hamada, A Kawakita, M Yasutomi, Y Ohshima
BACKGROUND AND OBJECTIVE: Background: Noninvasive and child-friendly biomarkers are important tools for understanding the various phenotypes of childhood asthma. Objective: The aim of this study was to examine the usefulness of salivary surfactant protein (SP)-D in assessing the pathophysiology of childhood asthma. METHODS: We measured salivary concentrations of SP-D and forced oscillation technique (FOT) indexes in 19 healthy controls and 21 asthmatic children...
June 6, 2017: Journal of Investigational Allergology & Clinical Immunology
https://www.readbyqxmd.com/read/28584938/the-effect-of-sleep-duration-on-exhaled-nitric-oxide-levels-in-u-s-adults
#12
Jensen H Hyde, Rehan Qayyum
PURPOSE: Poor sleep quality and duration are associated with systemic endothelial dysfunction. However, an association between poor sleep and pulmonary endothelial dysfunction has not been elucidated. We sought to determine if there is a relationship between sleep duration and fractional exhaled nitric oxide (FeNO) concentrations as a surrogate for pulmonary endothelial function. METHODS: We used three National Health and Nutrition Examination Survey (NHANES) cycles (2007-2012)...
June 6, 2017: Sleep & Breathing, Schlaf & Atmung
https://www.readbyqxmd.com/read/28569072/the-role-of-oral-methotrexate-as-a-steroid-sparing-agent-in-refractory-eosinophilic-asthma
#13
David Bilocca, B Hargadon, I D Pavord, R H Green, C E Brightling, P Bradding, A J Wardlaw, N Martin, A C Murphy, S Siddiqui
The use of oral methotrexate for refractory eosinophilic asthma in a tertiary asthma referral centre, Glenfield Hospital, Leicester, was evaluated between January 2006 and December 2014. The patients ( n = 61) were carefully phenotyped at baseline with markers of airway inflammation. In addition, a structured oral methotrexate proforma was utilized to evaluate response to therapy and adverse events. Oral steroid withdrawal was attempted 3 months after commencing treatment. Several outcomes were evaluated at 12 months, including both efficacy and adverse effects; 15% ( n = 9/61) responded by achieving a decrease in daily oral corticosteroid dose (mean 8...
January 1, 2017: Chronic Respiratory Disease
https://www.readbyqxmd.com/read/28565772/association-of-mycoplasma-pneumoniae-infection-with-increased-risk-of-asthma-in-children
#14
Sha-Sha Yin, Feng-Lian Ma, Xing Gao
The present study was conducted to investigate the relationship between Mycoplasma pneumoniae (MP) infection and the risk of asthma among children by detecting the rate of MP immunoglobulin M (MP-IgM) and the eosinophil (EOS) count. A total of 139 asthmatic children were enrolled as the case group and assigned into three groups: Group A (aged <3 years, n=42), group B (aged 3-8 years, n=45) and group C (aged >8 years, n=52). Additionally, 115 healthy children were enrolled in the control group. Enzyme-linked immunosorbent assay was used to measure the MP-IgM-positive rate...
May 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28558698/role-of-human-rhinovirus-in-triggering-human-airway-epithelial-mesenchymal-transition
#15
Danielle M Minor, David Proud
BACKGROUND: Structural changes in the airways, collectively referred to as airway remodeling, are a characteristic feature of asthma, and are now known to begin in early life. Human rhinovirus (HRV)-induced wheezing illnesses during early life are a potential inciting stimulus for remodeling. Increased deposition of matrix proteins causes thickening of the lamina reticularis, which is a well-recognized component of airway remodeling. Increased matrix protein deposition is believed to be due to the presence of increased numbers of activated mesenchymal cells (fibroblasts/myofibroblasts) in the subepithelial region of asthmatic airways...
May 30, 2017: Respiratory Research
https://www.readbyqxmd.com/read/28533558/investigating-the-causal-effect-of-smoking-on-hay-fever-and-asthma-a-mendelian-randomization-meta-analysis-in-the-carta-consortium
#16
Tea Skaaby, Amy E Taylor, Rikke K Jacobsen, Lavinia Paternoster, Betina H Thuesen, Tarunveer S Ahluwalia, Sofus C Larsen, Ang Zhou, Andrew Wong, Maiken E Gabrielsen, Johan H Bjørngaard, Claudia Flexeder, Satu Männistö, Rebecca Hardy, Diana Kuh, Sarah J Barry, Line Tang Møllehave, Charlotte Cerqueira, Nele Friedrich, Tobias N Bonten, Raymond Noordam, Dennis O Mook-Kanamori, Christian Taube, Leon E Jessen, Alex McConnachie, Naveed Sattar, Mark N Upton, Charles McSharry, Klaus Bønnelykke, Hans Bisgaard, Holger Schulz, Konstantin Strauch, Thomas Meitinger, Annette Peters, Harald Grallert, Ellen A Nohr, Mika Kivimaki, Meena Kumari, Uwe Völker, Matthias Nauck, Henry Völzke, Chris Power, Elina Hyppönen, Torben Hansen, Torben Jørgensen, Oluf Pedersen, Veikko Salomaa, Niels Grarup, Arnulf Langhammer, Pål R Romundstad, Frank Skorpen, Jaakko Kaprio, Marcus R Munafò, Allan Linneberg
Observational studies on smoking and risk of hay fever and asthma have shown inconsistent results. However, observational studies may be biased by confounding and reverse causation. Mendelian randomization uses genetic variants as markers of exposures to examine causal effects. We examined the causal effect of smoking on hay fever and asthma by using the smoking-associated single nucleotide polymorphism (SNP) rs16969968/rs1051730. We included 231,020 participants from 22 population-based studies. Observational analyses showed that current vs never smokers had lower risk of hay fever (odds ratio (OR) = 0·68, 95% confidence interval (CI): 0·61, 0·76; P < 0·001) and allergic sensitization (OR = 0·74, 95% CI: 0·64, 0·86; P < 0·001), but similar asthma risk (OR = 1·00, 95% CI: 0·91, 1·09; P = 0·967)...
May 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28532657/mechanistic-link-between-diesel-exhaust-particles-and-respiratory-reflexes
#17
Ryan K Robinson, Mark A Birrell, John J Adcock, Michael A Wortley, Eric D Dubuis, Shu Chen, Catriona M McGilvery, Sheng Hu, Milo S P Shaffer, Sara J Bonvini, Sarah A Maher, Ian S Mudway, Alexandra E Porter, Chris Carlsten, Teresa D Tetley, Maria G Belvisi
BACKGROUND: Diesel exhaust particles (DEPs) are a major component of particulate matter in Europe's largest cities, and epidemiologic evidence links exposure with respiratory symptoms and asthma exacerbations. Respiratory reflexes are responsible for symptoms and are regulated by vagal afferent nerves, which innervate the airway. It is not known how DEP exposure activates airway afferents to elicit symptoms, such as cough and bronchospasm. OBJECTIVE: We sought to identify the mechanisms involved in activation of airway sensory afferents by DEPs...
May 19, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28526682/aeroallergens-induce-reactive-oxygen-species-production-and-dna-damage-and-dampen-antioxidant-responses-in-bronchial-epithelial-cells
#18
Tze Khee Chan, W S Daniel Tan, Hong Yong Peh, W S Fred Wong
Exposure to environmental allergens is a major risk factor for asthma development. Allergens possess proteolytic activity that is capable of disrupting the airway epithelium. Although there is increasing evidence pointing to asthma as an epithelial disease, the underlying mechanism that drives asthma has not been fully elucidated. In this study, we investigated the direct DNA damage potential of aeroallergens on human bronchial epithelial cells and elucidated the mechanisms mediating the damage. Human bronchial epithelial cells, BEAS-2B, directly exposed to house dust mites (HDM) resulted in enhanced DNA damage, as measured by the CometChip and the staining of DNA double-strand break marker, γH2AX...
May 19, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28521083/inflammatory-infiltrate-and-mucosal-remodeling-in-chronic-rhinosinusitis-with-and-without-polyps-structured-histopathologic-analysis
#19
Hannah N Kuhar, Bobby A Tajudeen, Mahboobeh Mahdavinia, Paolo Gattuso, Ritu Ghai, Pete S Batra
BACKGROUND: Chronic rhinosinusitis (CRS) is commonly classified into CRS with nasal polyps (CRSwNP) and CRS without nasal polyps (CRSsNP). Structured histopathologic reporting has the potential to identify salient histologic markers to differentiate subtypes and provide insights into pathophysiologic mechanisms in CRS. METHODS: A structured histopathology report of 13 variables was prospectively employed to analyze ethmoid sinus tissue removed during endoscopic sinus surgery for 99 patients, including 43 CRSsNP and 56 CRSwNP...
May 18, 2017: International Forum of Allergy & Rhinology
https://www.readbyqxmd.com/read/28515402/differences-in-fraction-of-exhaled-nitric-oxide-values-measured-by-two-hand-helded-analyzers-nobreath-%C3%A2-and-niox-vero-%C3%A2
#20
Takahiro Tsuburai, Yousuke Kamide, Yuto Nakamura, Yasuhiro Tomita, Yuto Hamada, Kentaro Watai, Hiroaki Hayashi, Kiyoshi Sekiya, Chihiro Mitsui, Yuma Fukutomi, Akio Mori, Masami Taniguchi
BACKGROUND: The fraction of exhaled nitric oxide (FENO) is a useful marker of asthma control. The FENO measurement with two hand-helded analyzers (NObreath(®) and NIOX Vero(®)) may be more affordable, no studies have examined the differences in FENO values measured with those methods in adult. METHODS: The study population comprised 44 subjects at our outpatient clinic. FeNO values (FENOb and FENOv) were measured by two methods (NObreath(®) and NIOX Vero(®))...
2017: Arerugī, [Allergy]
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