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Exhaled nitric oxide

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https://www.readbyqxmd.com/read/27913032/intervention-studies-of-inhaled-corticosteroids-combined-with-long-acting-theophylline-or-long-acting-%C3%AE-2-agonists-in-patients-with-moderate-to-severe-asthma-a-randomized-controlled-study
#1
Yan Wang, Ping Chen, Anna Dai, Shengyun Shang, Lingfei Kong
PURPOSE: To evaluate and contrast the therapeutic effect and safety of fluticasone aerosol combined with theophylline tablets in patients with moderate to severe asthma, compared with salmeterol/fluticasone propionate aerosol. METHODS: After a screening period, patients meeting the inclusion criteria were randomly assigned to the experiment group (fluticasone aerosol combined with theophylline tablets) or the control group (salmeterol/fluticasone aerosol combined with placebo tablets) for 12 weeks of treatment...
November 29, 2016: Clinical Therapeutics
https://www.readbyqxmd.com/read/27906490/exhaled-nitric-oxide-in-the-diagnosis-of-asthma-in-adults-a-systematic-review
#2
Sue E Harnan, Munira Essat, Tim Gomersall, Paul Tappenden, Ian Pavord, Mark Everard, Rod Lawson
OBJECTIVES: To identify and synthesise evidence on the diagnostic accuracy of FE NO for asthma in adults. MATERIALS AND METHODS: Systematic searches (nine key biomedical databases and trial registers) were carried out to November 2014. Records were included if they: recruited patients with the symptoms of asthma; used a single set of inclusion criteria; measured FE NO50 in accordance with American Thoracic Society guidelines, 2005 (off-line excluded); reported/allowed calculation of true positive, true negative, false positive and false negative patients as classified against any reference standard...
December 1, 2016: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/27902492/exhaled-nitric-oxide-in-a-middle-aged-icelandic-population-cohort
#3
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/27888027/can-exhaled-nitric-oxide-fraction-predict-adherence-to-inhaled-corticosteroids-in-atopic-and-nonatopic-children-with-asthma
#4
Ted Klok, Paul L P Brand
No abstract text is available yet for this article.
November 22, 2016: Journal of Allergy and Clinical Immunology in Practice
https://www.readbyqxmd.com/read/27887644/copenhagen-comorbidity-in-hiv-infection-cocomo-study-a-study-protocol-for-a-longitudinal-non-interventional-assessment-of-non-aids-comorbidity-in-hiv-infection-in-denmark
#5
Andreas Ronit, Judith Haissman, Ditte Marie Kirkegaard-Klitbo, Thomas Skårup Kristensen, Anne-Mette Lebech, Thomas Benfield, Jan Gerstoft, Henrik Ullum, Lars Køber, Andreas Kjær, Klaus Kofoed, Jørgen Vestbo, Børge Nordestgaard, Jens Lundgren, Susanne Dam Nielsen
BACKGROUND: Modern combination antiretroviral therapy (cART) has improved survival for people living with HIV (PLWHIV). Non-AIDS comorbidities have replaced opportunistic infections as leading causes of mortality and morbidity, and are becoming a key health concern as this population continues to age. The aim of this study is to estimate the prevalence and incidence of non-AIDS comorbidity among PLWHIV in Denmark in the cART era and to determine risk factors contributing to the pathogenesis...
November 26, 2016: BMC Infectious Diseases
https://www.readbyqxmd.com/read/27886852/-cold-air-and-or-talking-as-cough-triggers-a-sign-for-the-diagnosis-of-cough-variant-asthma
#6
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/27884795/forced-oscillation-technique-as-a-predictor-of-fev1-improvement-in-asthma
#7
Taisuke Akamatsu, Toshihiro Shirai, Yukiko Shimoda, Takahito Suzuki, Ichiro Hayashi, Rie Noguchi, Eisuke Mochizuki, Shogo Sakurai, Mika Saigusa, Akito Yamamoto, Yuichiro Shishido, Takefumi Akita, Satoru Morita, Kazuhiro Asada
The usefulness of the forced oscillation technique (FOT) for predicting the treatment outcomes in untreated asthmatic patients is unknown. We investigated whether FOT could predict an improvement in FEV1 following treatment. FOT, spirometry, and fractional exhaled nitric oxide were performed in 31 outpatients before and after undergoing a minimum of two months combination therapy of inhaled corticosteroids and long-acting β2-agonists. The patients were classified as responders or nonresponders to treatment based on the presence or absence of a 10% improvement in the FEV1...
November 21, 2016: Respiratory Physiology & Neurobiology
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
#8
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
#9
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/27837378/nasal-nitric-oxide-improved-by-continuous-positive-airway-pressure-therapy-for-upper-airway-inflammation-in-obstructive-sleep-apnea
#10
Satoshi Hamada, Shuji Tatsumi, Yoshiki Kobayashi, Hirotaka Yasuba
PURPOSE: In this report, we examined the association between obstructive sleep apnea (OSA) and upper and lower airway inflammation based on nitric oxide (NO) measurements. METHODS: Study subjects included 51 consecutive participants. Sleep-disordered breathing was evaluated by a type 3 portable monitor and quantified by respiratory disturbance index (RDI). Airway inflammation was noninvasively analyzed by the measurement of nasally and orally exhaled NO; nasal value was presented as nasally exhaled NO minus orally exhaled NO...
November 12, 2016: Sleep & Breathing, Schlaf & Atmung
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
#11
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
#12
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...
November 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
#13
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
https://www.readbyqxmd.com/read/27823578/measuring-nasal-nitric-oxide-in-allergic-rhinitis-patients
#14
V S Nesic, V Z Djordjevic, V Tomic-Spiric, Z R Dudvarski, I A Soldatovic, N A Arsovic
OBJECTIVE: This study aimed to compare two sampling methods for nasal nitric oxide in healthy individuals and allergic rhinitis patients, and to examine the within-subject reliability of nasal nitric oxide measurement. METHODS: The study included 23 allergic rhinitis patients without concomitant asthma and 10 healthy individuals. For all participants, nitric oxide levels were measured non-invasively from the lungs through the mouth (i.e. the oral fractional exhaled nitric oxide) and the nose...
November 2016: Journal of Laryngology and Otology
https://www.readbyqxmd.com/read/27802882/respiratory-symptoms-and-fractional-exhaled-nitric-oxide-feno-among-students-in-penang-malaysia-in-relation-to-signs-of-dampness-at-school-and-fungal-dna-in-school-dust
#15
Dan Norbäck, Jamal Hisham Hashim, Zailina Hashim, Gui-Hong Cai, Vinoshini Sooria, Syazwan Aizat Ismail, Gunilla Wieslander
Few health studies exist on dampness and mould in schools in the tropics. We studied associations between fraction of exhaled nitric oxide (FeNO), respiratory symptoms and airway infections among students and dampness and fungal DNA in schools in Malaysia. A total of 368 randomly selected students from 32 classrooms in 8 secondary schools in Penang, Malaysia, participated (58% participation rate). Information on current respiratory symptoms and the home environment was collected by a standardised questionnaire...
January 15, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/27801711/diagnostic-challenges-of-childhood-asthma
#16
Arzu Bakirtas
PURPOSE OF REVIEW: Diagnosis of asthma in childhood is challenging. Both underdiagnosis and overdiagnosis of asthma are important issues. The present review gives information about challenging factors for an accurate diagnosis of childhood asthma. RECENT FINDINGS: Although underdiagnosis of asthma in childhood has always been the most important diagnostic problem, overdiagnosis of asthma has also been increasingly recognized. This is probably due to diagnosis of asthma based on symptoms and signs alone...
January 2017: Current Opinion in Pulmonary Medicine
https://www.readbyqxmd.com/read/27792747/nasal-airflow-measured-by-rhinomanometry-correlates-with-feno-in-children-with-asthma
#17
I-Chen Chen, Yu-Tsai Lin, Jong-Hau Hsu, Yi-Ching Liu, Jiunn-Ren Wu, Zen-Kong Dai
BACKGROUND: Rhinitis and asthma share similar immunopathological features. Rhinomanometry is an important test used to assess nasal function and spirometry is an important tool used in asthmatic children. The degree to which the readouts of these tests are correlated has yet to be established. We sought to clarify the relationship between rhinomanometry measurements, fractional exhaled nitric oxide (FeNO), and spirometric measurements in asthmatic children. METHODS: Patients' inclusion criteria: age between 5 and 18 years, history of asthma with nasal symptoms, and no anatomical deformities...
2016: PloS One
https://www.readbyqxmd.com/read/27789122/is-the-association-between-exhaled-nitric-oxide-and-asthma-symptoms-altered-by-body-weight-in-rural-adolescents
#18
Stephen F Dinetz, Jennifer L Waller, Martha S Tingen
No abstract text is available yet for this article.
October 24, 2016: Annals of Allergy, Asthma & Immunology
https://www.readbyqxmd.com/read/27783458/combined-use-of-fractional-exhaled-nitric-oxide-and-bronchodilator-response-in-predicting-future-loss-of-asthma-control-among-children-with-atopic-asthma
#19
Je-Kyung Kim, Jae-Yub Jung, Heon Kim, Sang-Yong Eom, Youn-Soo Hahn
BACKGROUND AND OBJECTIVE: Recognition of patients at risk of asthma exacerbation is important for future asthma care and improved outcome. The aim of the present study was to see whether measurements of bronchodilator response (BDR) and fractional exhaled nitric oxide (FeNO) in combination provide prognostic information superior to either measurement alone in children with atopic asthma. METHODS: A total of 201 atopic children aged 8-16 years with intermittent or mild persistent asthma were included...
October 26, 2016: Respirology: Official Journal of the Asian Pacific Society of Respirology
https://www.readbyqxmd.com/read/27777105/effects-of-occupational-exposure-to-poorly-soluble-forms-of-beryllium-on-biomarkers-of-pulmonary-response-in-exhaled-breath-of-workers-in-machining-industries
#20
Anca Radauceanu, Michel Grzebyk, Jean-Louis Edmé, Nathalie Chérot-Kornobis, Davy Rousset, Mathieu Dziurla, Virginie De Broucker, Guy Hédelin, Annie Sobaszek, Sébastien Hulo
OBJECTIVE: To analyze the effects of occupational exposure to poorly soluble forms of beryllium (Be) on biomarkers of pulmonary inflammation using exhaled breath condensate (EBC) in workers employed in machining industries. METHODS: Twenty machining operators were compared to 16 controls. The individual exposure to Be was assessed from the work history with several indices of exposure calculated on the basis of task-exposures matrices developed for each plant using historical air measurements...
October 21, 2016: Toxicology Letters
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