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Asthma biomarker

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https://www.readbyqxmd.com/read/28815006/biomarkers-in-inflammometry-pediatric-asthma-utility-in-daily-clinical-practice
#1
REVIEW
Silvia Sánchez-García, Alicia Habernau Mena, Santiago Quirce
Asthma is a common disease in both high and lower income countries that starts early and persists often for life. A correct and accurate diagnosis, treatment and follow-up during childhood are essential for a better understanding of adult asthma and avoiding over- or under-treatment. Th2 inflammation in children with asthma symptoms is usually assessed by measuring with serum total IgE, blood eosinophilia and FeNO levels that may help to predict asthma, particularly in those infants and young children in whom lung function tests are difficult to perform...
2017: European Clinical Respiratory Journal
https://www.readbyqxmd.com/read/28802206/perfluoroalkyl-substance-exposure-and-urine-cc16-levels-among-asthmatics-a-case-control-study-of-children
#2
Yang Zhou, Wen-Wen Bao, Zhengmin Min Qian, Sarah Dee Geiger, Katelyn L Parrish, Bo-Yi Yang, Yungling Leo Lee, Guang-Hui Dong
BACKGROUND: Studies have reported an association between serum perfluoroalkyl substances (PFASs) and asthma. However, few studies have examined the possible associations between PFASs and the 16-kDa club cell secretory protein (Clara) (CC16) level, a prominent biomarker of asthma, among adolescents. METHODS: We recruited a total of 231 asthmatic children and 225 non-asthmatic controls in the Genetic and Biomarkers study for Childhood Asthma (GBCA) in northern Taiwan from 2009 to 2010...
August 9, 2017: Environmental Research
https://www.readbyqxmd.com/read/28796252/microrna-34-449-targets-igfbp-3-and-attenuates-airway-remodeling-by-suppressing-nur77-mediated-autophagy
#3
Huiming Yin, Shu Zhang, Yahong Sun, Sha Li, Yunye Ning, Yuchao Dong, Yan Shang, Chong Bai
Autophagy plays critical roles in airway inflammation and fibrosis-mediated airway remodeling and many factors including proinflammatory cytokines and inflammation related pathways are involved in the process. The aim of the present study was to examine the role of epithelial microRNAs (miRNAs) in autophagy-mediated airway remodeling and to identify the factors involved and the underlying mechanisms. Serum miR-34/449, inflammatory factors, and autophagy and fibrosis-related proteins were determined by real-time PCR, enzyme-linked immunosorbent assay and western blotting in 46 subjects with asthma and 10 controls and in the lung epithelial cell line BEAS-2B induced with IL-13 and treated with miRNA mimics...
August 10, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28780940/diagnosis-and-management-of-anaphylaxis-in-precision-medicine
#4
REVIEW
Mariana Castells
Anaphylaxis is the most severe and frightening of the allergic reactions, placing patients at high risk and demanding prompt recognition and immediate management by health care providers. Yet because its symptoms imitate those of other diseases, such as asthma and urticaria, current data suggest that its diagnosis is often missed, with underuse of tryptase measurement; its treatment is delayed, with little use of epinephrine; and its underlying cause or causes are poorly investigated. Deaths from anaphylaxis are difficult to investigate because of miscoding...
August 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28776467/pharmacogenetics-and-the-treatment-of-asthma
#5
María Isidoro-García, Almudena Sánchez-Martín, Asunción García-Sánchez, Catalina Sanz, Belén García-Berrocal, Ignacio Dávila
Heterogeneity defines both the natural history of asthma as well as patient's response to treatment. Pharmacogenomics contribute to understand the genetic basis of drug response and thus to define new therapeutic targets or molecular biomarkers to evaluate treatment effectiveness. This review is initially focused on different genes so far involved in the pharmacological response to asthma treatment. Specific considerations regarding allergic asthma, the pharmacogenetics aspects of polypharmacy and the application of pharmacogenomics in new drugs in asthma will also be addressed...
August 4, 2017: Pharmacogenomics
https://www.readbyqxmd.com/read/28775219/assessment-of-dietary-food-and-nutrient-intake-and-bone-density-in-children-with-eczema
#6
T F Leung, S S Wang, F Y Kwok, L W Leung, C M Chow, E K Hon
INTRODUCTION: Dietary restrictions are common among patients with eczema, and such practice may lead to diminished bone mineral density. This study investigated dietary intake and bone mineral density in Hong Kong Chinese children with eczema. METHODS: This cross-sectional and observational study was conducted in a university-affiliated teaching hospital in Hong Kong. Chinese children aged below 18 years with physician-diagnosed eczema were recruited from our paediatric allergy and dermatology clinics over a 6-month period in 2012...
August 4, 2017: Hong Kong Medical Journal, Xianggang Yi Xue za Zhi
https://www.readbyqxmd.com/read/28774947/bayesian-estimation-of-physiological-parameters-governing-a-dynamic-two-compartment-model-of-exhaled-nitric-oxide
#7
Patrick Muchmore, Edward B Rappaport, Sandrah P Eckel
The fractional concentration of nitric oxide in exhaled breath (feNO) is a biomarker of airway inflammation with applications in clinical asthma management and environmental epidemiology. feNO concentration depends on the expiratory flow rate. Standard feNO is assessed at 50 mL/sec, but "extended NO analysis" uses feNO measured at multiple different flow rates to estimate parameters quantifying proximal and distal sources of NO in the lower respiratory tract. Most approaches to modeling multiple flow feNO assume the concentration of NO throughout the airway has achieved a "steady-state...
August 2017: Physiological Reports
https://www.readbyqxmd.com/read/28769024/nontargeted-metabolomic-analysis-of-four-different-parts-of-platycodon-grandiflorum-grown-in-northeast-china
#8
Cuizhu Wang, Nanqi Zhang, Zhenzhou Wang, Zeng Qi, Hailin Zhu, Bingzhen Zheng, Pingya Li, Jinping Liu
Platycodonis radix is extensively used for treating cough, excessive phlegm, sore throat, bronchitis and asthma in the clinic. Meanwhile, the stems, leaves and seeds of Platycodon grandiflorum (PG) have some pharmaceutical activities such as anti-inflammation and anti-oxidation effects, etc. These effects must be caused by the different metabolites in various parts of herb. In order to profile the different parts of PG, the ultra-high performance liquid chromatography combined with quadrupole time-of- flight mass spectrometry (UPLC-QTOF-MS(E)) coupled with UNIFI platform and multivariate statistical analyses was used in this study...
August 3, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28749975/circulating-micrornas-and-association-with-methacholine-pc20-in-the-childhood-asthma-management-program-camp-cohort
#9
Joshua S Davis, Maoyun Sun, Alvin T Kho, Kip G Moore, Jody M Sylvia, Scott T Weiss, Quan Lu, Kelan G Tantisira
INTRODUCTION: Circulating microRNAs (miRNA) are promising biomarkers for human diseases. Our study hypothesizes that circulating miRNA would reveal candidate biomarkers related to airway hyperresponsiveness (AHR) and provide biologic insights into asthma epigenetic influences. METHODS: Serum samples obtained at randomization for 160 children in the Childhood Asthma Management Program were profiled using a TaqMan miRNA array set. The association of the isolated miRNA with methacholine PC20 was assessed...
2017: PloS One
https://www.readbyqxmd.com/read/28739286/genetic-and-epigenetic-regulation-of-ykl-40-in-childhood
#10
Stefano Guerra, Erik Melén, Jordi Sunyer, Cheng-Jian Xu, Iris Lavi, Marta Benet, Mariona Bustamante, Anne-Elie Carsin, Carlota Dobaño, Mònica Guxens, Christina Tischer, Martine Vrijheid, Inger Kull, Anna Bergström, Ashish Kumar, Cilla Söderhäll, Ulrike Gehring, Dorieke J Dijkstra, Pieter van der Vlies, Magnus Wickman, Jean Bousquet, Dirkje S Postma, Josep M Anto, Gerard H Koppelman
BACKGROUND: Circulating levels of the chitinase-like protein YKL-40 are influenced by genetic variation in its encoding gene (CHI3L1) and are increased in several diseases, including asthma. Epigenetic regulation of circulating YKL-40 early in life is unknown. OBJECTIVE: To determine (1) whether methylation levels at CHI3L1 CpG sites mediate the association of CHI3L1 single nucleotide polymorphisms (SNPs) with YKL-40 levels in the blood; and (2) whether these biomarkers (CHI3L1 SNPs, methylation profiles, and YKL-40 levels) are associated with asthma in early childhood...
July 21, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28738246/crocin-modulates-il-4-il-13-signaling-and-ameliorates-experimentally-induced-allergic-airway-asthma-in-a-murine-model
#11
Haidy Yosri, Wagdi F Elkashef, Eman Said, Nariman M Gameil
Allergic asthma is a chronic respiratory disease with a prevalent T helper (Th2)-mediated immune reaction. Crocin, the major bioactive constituent of saffron, has been reported in multiple studies to have numerous pharmacological activities, including prominent anti-oxidant activities. In the current study, the anti-asthmatic potential of crocin was evaluated. Adult male Swiss Albino mice were administered 10mg of ovalbumin (OVA) mixed with 1mg of aluminum hydroxide intraperitoneally on days 0 and 7 and were administered crocin (25mg/kg) orally daily for 16days...
July 21, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28724278/reductions-in-eosinophil-biomarkers-by-benralizumab-in-patients-with-asthma
#12
Mirhojjat Khorasanizadeh, Mahsa Eskian, Nima Rezaei
No abstract text is available yet for this article.
May 2017: Acta Medica Iranica
https://www.readbyqxmd.com/read/28721009/patient-profiles-and-clinical-utility-of-mepolizumab-in-severe-eosinophilic-asthma
#13
REVIEW
Pranabashis Haldar
Mepolizumab (Nucala(®)) is an effective and specific anti-eosinophil molecular therapy that has recently been approved as add-on therapy for the management of severe eosinophilic asthma by the US Food and Drug Administration (FDA), European Medicines Agency (EMA; European Union) and more recently National Institute for Health and Care Excellence (NICE; UK). It is one of several molecular therapies in development for this indication and is illustrative of the strategic trajectory for pharmaceutical drug development taken over the past decade in several disease areas...
2017: Biologics: Targets & Therapy
https://www.readbyqxmd.com/read/28720095/fibrocyte-measurement-in-peripheral-blood-correlates-with-number-of-cultured-mature-fibrocytes-in-vitro-and-is-a-potential-biomarker-for-interstitial-lung-disease-in-rheumatoid-arthritis
#14
Søren Andreas Just, Hanne Lindegaard, Eva Kildall Hejbøl, Jesper Rømhild Davidsen, Niels Bjerring, Søren Werner Karlskov Hansen, Henrik Daa Schrøder, Inger Marie Jensen Hansen, Torben Barington, Christian Nielsen
BACKGROUND: Interstitial lung disease (ILD) can be a severe extra-articular disease manifestation in Rheumatoid Arthritis (RA). A potential role of fibrocytes in RA associated ILD (RA-ILD) has not previously been described. We present a modified faster method for measuring circulating fibrocytes, without intracellular staining. The results are compared to the traditional culture method, where the number of monocytes that differentiate into mature fibrocytes in vitro are counted. The results are following compared to disease activity in patients with severe asthma, ILD, RA (without diagnosed ILD) and RA with verified ILD (RA-ILD)...
July 18, 2017: Respiratory Research
https://www.readbyqxmd.com/read/28712576/comparing-effectiveness-and-outcomes-in-asthma-and-cystic-fibrosis
#15
REVIEW
Michael S Schechter
As technology yields new treatments, pediatric pulmonologists need determine how best to use them and how to decide which ones are best for any specific group or individual patient. Physicians have always customized therapies based upon patient response, but the new concept of "Personalized (or precision) medicine" focuses attention to a greater degree on the individual needs of patients based on their genetic, biomarker, phenotypic, or psychosocial characteristics. The newly developed biologics for treatment of asthma and CFTR modulators for treatment of cystic fibrosis (CF) highlight this newer approach...
June 12, 2017: Paediatric Respiratory Reviews
https://www.readbyqxmd.com/read/28709967/advances-in-asthma-2016-designing-individualized-approaches-to-management
#16
William C Anderson, Andrea Apter, Cullen M Dutmer, Daniel A Searing, Stanley J Szefler
In this years Advances in Asthma review we discuss viral infections in asthma and potential therapeutic agents, the microbiome, novel genetic associations with asthma, air quality and climate effects on asthma, exposures during development and long term sequelae of childhood asthma, patient centered outcome research, and precision medicine. In addition, we discuss application of biomarkers to precision medicine, and new information on asthma medications. New evidence indicates that rhinovirus-triggered asthma exacerbations become more severe as the degree of sensitization to dust mite and mouse increase...
July 11, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28704419/a-pilot-feeding-study-for-adults-with-asthma-the-healthy-eating-better-breathing-trial
#17
Emily P Brigham, Elizabeth C Matsui, Lawrence J Appel, Deborah A Bull, Jean Curtin-Brosnan, Shuyan Zhai, Karen White, Jeanne B Charleston, Nadia N Hansel, Gregory B Diette, Meredith C McCormack
RATIONALE: Evidence from observational studies and to a lesser extent clinical trials suggest that a healthy diet may improve symptoms and lung function in patients with asthma. We conducted a pilot study to determine the feasibility of conducting a larger scale dietary trial and to provide preliminary evidence on the impact of a healthy diet on asthma outcomes. METHODS: In a randomized, two period cross-over trial, participants with asthma received a 4-week dietary intervention followed by a usual diet (or vice versa), separated by a 4-week washout...
2017: PloS One
https://www.readbyqxmd.com/read/28701525/cigarette-smoke-differentially-affects-il-13-induced-gene-expression-in-human-airway-epithelial-cells
#18
Tinne C J Mertens, Anne M van der Does, Loes E Kistemaker, Dennis K Ninaber, Christian Taube, Pieter S Hiemstra
Allergic airways inflammation in asthma is characterized by an airway epithelial gene signature composed of POSTN, CLCA1, and SERPINB2 This Th2 gene signature is proposed as a tool to classify patients with asthma into Th2-high and Th2-low phenotypes. However, many asthmatics smoke and the effects of cigarette smoke exposure on the epithelial Th2 gene signature are largely unknown. Therefore, we investigated the combined effect of IL-13 and whole cigarette smoke (CS) on the Th2 gene signature and the mucin-related genes MUC5AC and SPDEF in air-liquid interface differentiated human bronchial (ALI-PBEC) and tracheal epithelial cells (ALI-PTEC)...
July 2017: Physiological Reports
https://www.readbyqxmd.com/read/28697969/childhood-severe-asthma-new-insights-on-remodelling-and-biomarkers
#19
REVIEW
Sejal Saglani
Severe asthma in children is characterised by severe and multiple aeroallergen sensitisation, food allergy, eosinophilic airway inflammation and airway remodelling. However, it is a heterogeneous disease with considerable variability in the manifestation of each of these characteristics between patients. Recent data from mechanistic studies that have used translational approaches including neonatal mouse models and airway bronchoscopic samples, have shown specific molecular mediators that drive remodelling and steroid resistance in paediatric severe asthma will be discussed...
June 12, 2017: Paediatric Respiratory Reviews
https://www.readbyqxmd.com/read/28696336/perspectives-on-exhaled-nitric-oxide
#20
Fabio Luigi Massimo Ricciardolo, Philip E Silkoff
The history of nitric oxide (NO) in respiratory field dates back to the beginning of '90s with the ancestral study by Lars Gustafsson et al. describing the presence of endogenous NO in the exhaled breath of human beings. Soon after, independent studies showed that exhaled NO concentrations (FENO) is higher in asthmatics than in normal subjects. Not all asthmatics demonstrate a high FENO reflecting heterogeneity of asthma. High values of FENO are associated with over-expression of corticosteroid-sensitive iNOS isoform and allergic/eosinophilic inflammation...
July 11, 2017: Journal of Breath Research
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