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https://www.readbyqxmd.com/read/28088474/diagnostic-accuracy-of-fractional-exhaled-nitric-oxide-in-predicting-cough-variant-asthma-and-eosinophilic-bronchitis-in-adult-patients-with-chronic-cough-a-systematic-review-and-meta-analysis
#1
Woo-Jung Song, Hyun Jung Kim, Ji-Su Shim, Ha-Kyeong Won, Sung-Yoon Kang, Kyoung-Hee Sohn, Byung-Keun Kim, Eun-Jung Jo, Min-Hye Kim, Sang-Heon Kim, Heung-Woo Park, Sun-Sin Kim, Yoon-Seok Chang, Alyn H Morice, Byung-Jae Lee, Sang-Heon Cho
BACKGROUND: Individual studies suggested the utility of fractional exhaled nitric oxide (FeNO) in detecting cough variant asthma (CVA) and eosinophilic bronchitis (EB) in chronic cough patients. OBJECTIVE: To obtain summary estimates of diagnostic test accuracy of FeNO in predicting CVA and/or EB in adult patients with chronic cough METHODS: Electronic databases were searched for studies published until January 2016, without language restriction. Cross-sectional studies which reported the diagnostic accuracy of FeNO for detecting CVA or EB were included...
January 11, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28076986/utilising-exhaled-nitric-oxide-information-to-enhance-diagnosis-and-therapy-of-respiratory-disease-current-evidence-for-clinical-practice-and-proposals-to-improve-the-methodology
#2
Marieann Högman, Lauri Lehtimäki, Anh Tuan Dinh-Xuan
A non-invasive tool to diagnose respiratory diseases and to follow treatment has long been looked-for. Exhaled nitric oxide (NO) is a promising marker of inflammation in asthma but nearly 25-years of research has shown that it works in only certain endotypes of asthma. The modelling of NO dynamics of the lung can give more information than a single FENO value. Areas covered: The estimation of the NO production in the conducting airways and in the gas exchange area has given new insight of the NO production in diseases beyond asthma...
January 11, 2017: Expert Review of Respiratory Medicine
https://www.readbyqxmd.com/read/28056907/lung-function-in-very-low-birth-weight-infants-after-pharmacological-and-surgical-treatment-of-patent-ductus-arteriosus-a-retrospective-analysis
#3
Payman Barikbin, Hannes Sallmon, Silke Wilitzki, Joachim Photiadis, Christoph Bührer, Petra Koehne, Gerd Schmalisch
BACKGROUND: The indications and strategies for treatment of patent ductus arteriosus (PDA) are controversial, and the safety and long-term benefits of surgical PDA closure remain uncertain. The aim of this study was to compare the lung function of very low birth weight (VLBW) infants after successful PDA treatment with a cyclooxygenase inhibitor or secondary surgical ligation. METHODS: A total of 114 VLBW infants (birth weight < 1500 g), including 94 infants (82%) with a birth weight < 1000 g, who received treatment for hemodynamically significant PDA (hsPDA), were examined at a median postmenstrual age of 48 weeks...
January 6, 2017: BMC Pediatrics
https://www.readbyqxmd.com/read/28051241/effects-of-omalizumab-therapy-on-allergic-rhinitis-a-pilot-study
#4
S Masieri, C Cavaliere, E Begvarfaj, D Rosati, A Minni
OBJECTIVE: The use of omalizumab, a humanized monoclonal antibody able to binding Ig-E, is currently authorized only for treatment of severe bronchial asthma. The use of omalizumab in other Ig-E related diseases is off-label, although some studies have provided promising results about it. The aim of this study was to evaluate if therapy with omalizumab in patients affected by asthma and allergic rhinitis has an impact also on allergic rhinitis-related symptoms. PATIENTS AND METHODS: A longitudinal study was conducted on 11 patients affected by severe asthma and a periodic allergic rhinitis...
December 2016: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28038794/prognostic-role-of-exhaled-breath-condensate-ph-and-fraction-exhaled-nitric-oxide-in-systemic-sclerosis-related-interstitial-lung-disease
#5
Alfredo Guillen-Del Castillo, Sara Sánchez-Vidaurre, Carmen P Simeón-Aznar, María J Cruz, Vicente Fonollosa-Pla, Xavier Muñoz
INTRODUCTION: Interstitial lung disease (ILD) is one of the major causes of death in systemic sclerosis (SSc). This study investigated exhaled breath (EB) and exhaled breath condensate (EBC) biomarkers in patients with SSc and analyzed their role as a prognostic tool in SSc-related ILD. METHODS: Fraction exhaled nitric oxide (FeNO) and exhaled carbon monoxide (eCO) measured in EB, together with pH, nitrite, nitrate and interleukin-6 levels measured in EBC were prospectively analyzed in 35 patients with SSc...
December 27, 2016: Archivos de Bronconeumología
https://www.readbyqxmd.com/read/28017448/25-hydroxyvitamin-d-concentrations-asthma-and-eczema-in-childhood-the-generation-r-study
#6
Ilse I M Tromp, Oscar H Franco, Edith H van den Hooven, Annemieke C Heijboer, Vincent W V Jaddoe, Liesbeth Duijts, Johan C de Jongste, Henriëtte A Moll, Jessica C Kiefte-de Jong
BACKGROUND & AIMS: A role of vitamin D in the development of respiratory and allergic disease in children remains unclear. It may be likely that vitamin D has an effect on airway inflammation, but only few studies examined the effect in children. We aimed to examine whether serum 25-hydroxyvitamin D (25(OH) vitamin D) concentrations are associated with the fraction of exhaled nitric oxide (FeNO), airway interrupter resistance (Rint), physician diagnosed asthma ever, wheezing and eczema in a population-based cohort study in 6 year old children...
December 8, 2016: Clinical Nutrition: Official Journal of the European Society of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/27996290/determination-of-fractional-exhaled-nitric-oxide-feno-reference-values-in-healthy-thai-population
#7
Yiwa Suksawat, Punchama Pacharn, Orathai Jirapongsananuruk
BACKGROUND: Fractional exhaled nitric oxide (FENO) level is directly correlated with airway inflammation in asthma patients. The objective of this study was to define normal FENO levels in healthy Thai volunteers. METHODS: This prospective cohort study was conducted in healthy Thai volunteers aged ≥5 years. Demographic and clinical data were recorded and pulmonary function test (PFT) was performed. FENO was measured using a chemiluminescence nitric oxide analyzer...
December 12, 2016: Asian Pacific Journal of Allergy and Immunology
https://www.readbyqxmd.com/read/27996287/association-of-indoor-air-quality-and-preschool-children-s-respiratory-symptoms
#8
Pongtong Puranitee, Sirinapa Siwarom, Adisak Plitponkarnpim, Wiparat Manuyakorn, Ratchaneewan Sinitkul, Sakda Arj-Ong Vallipakorn
BACKGROUND: This study aimed to assess the association between exposure to indoor air pollution in DCCs (Child Day Care Centers) and the respiratory symptoms of children under 6 years old. METHODS: Air quality data were collected three times regarding seasonal variation. Pollutants measured in 11 DCCs included PM10, CO, NO2, SO2, O3, benzene, bacteria, fungi, and dust mite. The frequency of respiratory symptoms including coughing, rhinitis, and dyspnea were recorded via teacher and parent-report questionnaires...
December 12, 2016: Asian Pacific Journal of Allergy and Immunology
https://www.readbyqxmd.com/read/27973944/a-population-based-study-of-smoking-serum-cotinine-and-exhaled-nitric-oxide-among-asthmatics-and-a-healthy-population-in-the-usa
#9
Xiaohui Xu, Hui Hu, Gregory D Kearney, Haidong Kan, Genny Carrillo, Xinguang Chen
BACKGROUND: Fractional concentration of exhaled nitric oxide (FeNO) is recommended by the American Thoracic Society (ATS) as a noninvasive biomarker of airway inflammation. In addition to inflammation, many factors may be associated with FeNO, particularly tobacco exposure; however, only age has been included as an influential factor for children below 12 years. Numerous studies have demonstrated negative associations between tobacco exposure and FeNO levels with self-reported data, but few with an objective assessment of smoking...
December 2016: Inhalation Toxicology
https://www.readbyqxmd.com/read/27938540/-protective-effect-of-hydrogen-on-the-lung-of-sanitation-workers-exposed-to-haze
#10
Z J Gong, J T Guan, X Z Ren, D Y Meng, H R Zhang, B L Wang, X X Yan
Objective: To study the protective effect of hydrogen inhalation on the lungs of sanitation workers exposed to haze. Methods: In this randomized, double-blind, placebo controlled clinical trial, 96 sanitation workers living in Shijiazhuang urban area were recruited during January to February, 2016. All enrolled participants were randomized to 2 groups; the treatment group inhaled H2∶O2 mixture (66.67%∶33.33%) 1 hour per day for 30 days, while the control group inhaled N2∶O2 mixture (66.67%∶33.33%) 1 hour per day for 30 days...
December 12, 2016: Chinese Journal of Tuberculosis and Respiratory Diseases
https://www.readbyqxmd.com/read/27933161/parallel-reductions-of-ige-and-exhaled-nitric-oxide-after-optimized-anti-inflammatory-asthma-treatment
#11
Jörgen Syk, Andrei Malinovschi, Magnus P Borres, Anna-Lena Undén, Anna Andreasson, Mats Lekander, Kjell Alving
Immunoglobulin E (IgE) is crucial for the development of airway inflammation in atopic asthma, and inhibition of IgE using monoclonal antibodies is now part of asthma therapy. However, the impact of ordinary anti-inflammatory treatment on IgE is unclear. The aim of this study was to investigate if optimization of treatment with inhaled corticosteroid (ICS) and leukotriene-receptor antagonist (LTRA) according to symptoms or exhaled nitric oxide (FENO) levels over a one-year period affects IgE concentrations...
June 2016: Immunity, Inflammation and Disease
https://www.readbyqxmd.com/read/27931275/serum-tryptase-level-and-inflammatory-markers-in-exhaled-breath-condensate-of-children-with-exercise-induced-symptoms
#12
Iwona Stelmach, Magdalena Zaczeniuk, Anna Sztafiska, Pawe Majak, Joanna Jerzyska, Anna Kuklinska-Pijanka, Wlodzimierz Stelmach
BACKGROUND: The pathogenesis of exercise-induced bronchoconstriction (EIB) is poorly understood. OBJECTIVE: To evaluate the biomarkers concentration in exhaled breath condensate (EBC) in schoolchildren with postexercise symptoms. We also evaluated changes in fractional exhaled nitric oxide (FeNO) value and the serum tryptase level after exercise. METHODS: One hundred children with postexercise symptoms were included. Methacholine challenge testing (MCT) was performed at visit 2, and exercise challenge testing (ECT) was performed at visit 3...
September 2016: Allergy and Asthma Proceedings:
https://www.readbyqxmd.com/read/27930477/respiratory-and-ocular-symptoms-among-employees-at-swedish-indoor-swimming-pools
#13
Håkan Löfstedt, Jessica Westerlund, Pål Graff, Ing-Liss Bryngelsson, Göte Mölleby, Anna-Carin Olin, Kåre Eriksson, Håkan Westberg
BACKGROUND: This study investigated trichloramine exposure and prevalence of respiratory and ocular symptoms among Swedish indoor swimming pool workers. METHODS: Questionnaires were distributed to pool workers and referents. Lung function and fraction of exhaled nitric oxide (FeNO) were measured before and after work. Exposure to trichloramine and trihalomethanes was measured over work shifts. RESULTS: The mean personal trichloramine exposure was 36 μg/m...
December 2016: Journal of Occupational and Environmental Medicine
https://www.readbyqxmd.com/read/27902492/exhaled-nitric-oxide-in-a-middle-aged-icelandic-population-cohort
#14
Anna Kristin Thorhallsdottir, David Gislason, Andrei Malinovschi, Michael Clausen, Thorarinn Gislason, Christer Janson, Bryndis Benediktsdottir
The prevalence of atopy and asthma is relatively low in Iceland. The purpose of this study was to describe exhaled nitric oxide (FeNO) levels in the general population in correlation with demographic characteristics, smoking status, asthma, rhinitis, atopic status and lung function tests. Altogether 403 subjects, from the European Community Respiratory Health Survey (ECRHS) III who answered the main questionnaire and were checked by FeNO measurements, lung function testing, skin prick testing and measurement of total IgE and specific IgE were included...
November 30, 2016: Journal of Breath Research
https://www.readbyqxmd.com/read/27886852/-cold-air-and-or-talking-as-cough-triggers-a-sign-for-the-diagnosis-of-cough-variant-asthma
#15
Yoshihiro Kanemitsu, Hisako Matsumoto, Nuriamina Osman, Tsuyoshi Oguma, Tadao Nagasaki, Yumi Izuhara, Isao Ito, Tomoko Tajiri, Toshiyuki Iwata, Akio Niimi, Michiaki Mishima
BACKGROUND: Fractional exhaled nitric oxide (FeNO) is considered an alternative marker of eosinophilic airway inflammation and is sometimes incorporated in the diagnosis of asthma. However, many patients with cough variant asthma (CVA) demonstrate an FeNO in the normal range. Therefore, additional information is needed to confirm the diagnosis of CVA, particularly in patients with low FeNO levels. We aimed to investigate the feasibility of using cough triggers to help diagnose CVA. METHODS: We studied 163 patients presenting with prolonged/chronic cough alone (including 104 CVA patients) who underwent FeNO measurements and an airway responsiveness test, and answered a questionnaire listing 18 cough triggers...
November 2016: Respiratory Investigation
https://www.readbyqxmd.com/read/27859599/double-blind-placebo-controlled-challenge-showed-that-peanut-oral-immunotherapy-was-effective-for-severe-allergies-without-negative-effects-on-airway-inflammation
#16
Anna Kaarina Kukkonen, Riikka Uotila, Leo Pekka Malmberg, Anna Susanna Pelkonen, Mika Juhani Mäkelä
AIM: This study examined the efficacy and the safety of peanut oral immunotherapy (OIT). METHODS: We recruited 60 patients aged 6-18 years who had a moderate-to-severe reaction to a double-blind placebo-controlled peanut challenge: 39 received OIT during an eight-month build-up phase and maintenance phase and 21 controls avoided peanuts. We measured specific immunoglobulin E and G4 (IgE and IgG4) to peanuts and to Ara h 1, 2, 3, 8, and 9 and monitored adverse events, bronchial hyperresponsiveness (BHR) to methacholine and fractional concentrations of exhaled nitric oxide (FeNO)...
November 12, 2016: Acta Paediatrica
https://www.readbyqxmd.com/read/27852361/-lower-airway-abnormalities-in-patients-with-allergic-rhinitis
#17
J F Ji, Q P Wang, Y Zhang, Z Y Wang, Y Q Xie, W J Guan, K M Wu, L Xu, W Chen, F Xue, M J Jiang, T Y Wang, N S Zhong
Objective: To investigate the characteristics of lower airway abnormalities in allergic rhinitis(AR) patients without asthma. Methods: Between June 2008 and December 2012, 377 consecutive AR patients and 264 healthy subjects were recruited. All subjects underwent meticulous history taking, nasal examination, allergen skin prick test, blood routine test, serum total immunoglobin E assay, induced sputum cell count and differentials, measurement of fractional exhaled nitric oxide (FeNO) and bronchial challenge test...
November 12, 2016: Chinese Journal of Tuberculosis and Respiratory Diseases
https://www.readbyqxmd.com/read/27825992/prevalence-determinants-and-clinical-correlates-of-vitamin-d-deficiency-in-adults-with-inhaled-corticosteroid-treated-asthma-in-london-uk
#18
REVIEW
David A Jolliffe, Kate Kilpin, Beverley D MacLaughlin, Claire L Greiller, Richard L Hooper, Neil C Barnes, Peter M Timms, Raj K Rajakulasingam, Angshu Bhowmik, Aklak B Choudhury, David E Simcock, Elina Hyppönen, Christopher J Corrigan, Robert T Walton, Christopher J Griffiths, Adrian R Martineau
Vitamin D deficiency is common in children with asthma, and it associates with poor asthma control, reduced forced expiratory volume in one second (FEV1) and increased requirement for inhaled corticosteroids (ICS). Cross-sectional studies investigating the prevalence, determinants and clinical correlates of vitamin D deficiency in adults with asthma are lacking. We conducted a multi-centre cross-sectional study in 297 adults with a medical record diagnosis of ICS-treated asthma living in London, UK. Details of potential environmental determinants of vitamin D status, asthma control and medication use were collected by questionnaire; blood samples were taken for analysis of serum 25(OH)D concentration and DNA extraction, and participants underwent measurement of weight, height and fractional exhaled nitric oxide concentration (FeNO), spirometry and sputum induction for determination of lower airway eosinophil counts (n=35 sub-group)...
November 5, 2016: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/27825189/exhaled-nitric-oxide-levels-to-guide-treatment-for-children-with-asthma
#19
REVIEW
Helen L Petsky, Kayleigh M Kew, Anne B Chang
BACKGROUND: Asthma guidelines aim to guide health practitioners to optimise treatment for patients to minimise symptoms, improve or maintain good lung function, and prevent acute exacerbations. The principle of asthma guidelines is based on a step-up or step-down regimen of asthma medications to maximise health using minimum doses. Fractional exhaled nitric oxide (FeNO) is a marker of eosinophilic inflammation and tailoring asthma medications in accordance to airway eosinophilic levels may improve asthma outcomes such as indices of control or reduce exacerbations, or both...
9, 2016: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/27824597/growth-trajectories-and-asthma-rhinitis-in-children-a-longitudinal-study-in-taiwan
#20
Yang-Ching Chen, Tsan-Hon Liou, Pau-Chung Chen, Bor-Luen Chiang, Yao-Hsu Yang, Hsien-Yu Fan, Yungling Leo Lee
Studies have reported the effect of body weight in early childhood on asthma. However, the effect of growth patterns during school age on asthma and rhinitis has yet to be explored. We sought to investigate whether various growth patterns predict incident asthma and rhinitis.We conducted a nationwide longitudinal study (Taiwan Children Health Study) in 14 Taiwanese communities. Body mass index (BMI) z-scores of 4422 children aged 6-11 years were collected annually and distinct growth trajectory classes were identified using a latent generalised mixture model...
October 20, 2016: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
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