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https://www.readbyqxmd.com/read/28731412/lung-sound-analysis-is-useful-for-monitoring-therapy-in-patients-with-bronchial-asthma
#1
T Shimoda, Y Obase, Y Nagasaka, H Nakano, R Kishikawa, T Iwanaga
BACKGROUND AND OBJECTIVE: Lung sound analysis (LSA) has been reported to be useful for predicting airway obstruction and inflammation in patients with bronchial asthma. Objectives: We examined whether the exhalation-to-inhalation sound pressure ratio in the middle frequency range (200-400 Hz) (E/I MF) is useful for monitoring therapy in patients with asthma. METHODS: The study population comprised 84 patients with mild to moderate asthma whose LSA data were available before and after 1 year of daily treatment with (budesonide 800 μg)...
2017: Journal of Investigational Allergology & Clinical Immunology
https://www.readbyqxmd.com/read/28730377/influence-of-vitamin-d-and-cotinine-on-t-regulatory-cells-and-asthma-severity-in-children
#2
Bolesław Kalicki, Agata Wawrzyniak, Agnieszka Lipińska-Opałka, Sławomir Lewicki, Robert Zdanowski
Asthma is a common chronic respiratory diseases in children. Understanding the immune mechanisms of epigenetic factors may contribute to a better control of asthma. This study seeks to determine the effects of serum vitamin D and urine cotinine on asthma severity and on T regulatory cells (Tregs) and other immune-related factors such as CD3, CD4, CD8, CD19, CD16/56, and anti-CD3 HLA-DR3. The study involved 34 children with asthma. Disease severity was assessed with the Asthma Control Test, spirometry, and the fractional exhaled nitric oxide (FeNO)...
July 21, 2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28724478/the-stoppa-twin-study-explains-the-exhaled-nitric-oxide-and-asthma-link-by-genetics-and-sensitization
#3
Björn Nordlund, Cecilia Lundholm, Vilhelmina Ullemar, Marianne van Hage, Anne K Örtqvist, Catarina Almqvist
BACKGROUND: The link between asthma and exhaled nitric oxide (FENO) is not completely understood. The aim of this study was to estimate the association between FENO and asthma, taking genetics, sensitization, and inhaled corticosteroids (ICS) into account. METHODS: A total of 681 twins (53% monozygotic [MZ] and 47% dizygotic [DZ]) from the population-based STOPPA study (mean age 12.6 years) were recruited and information on FENO (parts per billion), parental report of current asthma, sensitization to airborne allergens (Phadiatop; IgE ≥0...
August 2017: Twin Research and Human Genetics: the Official Journal of the International Society for Twin Studies
https://www.readbyqxmd.com/read/28716479/lower-exhaled-nitric-oxide-in-infants-with-cystic-fibrosis-compared-to-healthy-controls
#4
Insa Korten, Margot Liechti, Florian Singer, Gaudenz Hafen, Isabelle Rochat, Pinelopi Anagnostopoulou, Dominik Müller-Suter, Jakob Usemann, Alexander Moeller, Urs Frey, Philipp Latzin, Carmen Casaulta
Exhaled nitric oxide (FENO) is a well-known, non-invasive airway biomarker. In patients with Cystic Fibrosis (CF) FENO is decreased. To understand if reduced FENO is primary related to Cystic Fibrosis Transmembrane Conductance Regulator (CFTR) dysfunction or an epiphenomenon of chronic inflammation, we measured FENO in 34 infants with CF prior to clinical symptoms and in 68 healthy controls. FENO was lower in CF compared to controls (p=0.0006) and the effect was more pronounced in CF infants without residual CFTR function (p<0...
July 14, 2017: Journal of Cystic Fibrosis: Official Journal of the European Cystic Fibrosis Society
https://www.readbyqxmd.com/read/28696336/perspectives-on-exhaled-nitric-oxide
#5
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
https://www.readbyqxmd.com/read/28660859/exhaled-nitric-oxide-measurements-in-patients-with-acute-onset-interstitial-lung-disease
#6
Keiji Oishi, Tsunahiko Hirano, Ryo Suetake, Syuichiro Ohata, Yoshikazu Yamaji, Kousuke Ito, Nobutaka Edakuni, Kazuto Matsunaga
It is important to identify the underlying cause of acute-onset interstitial lung disease (ILD). This study aims to assess whether there are differences in the exhaled nitric oxide (eNO) level between different subtypes of acute-onset ILD. Forty patients with a combination of illness ≤4 weeks in duration and diffuse radiographic infiltrates were classified into groups based on the etiology. The eNO at a flow rate of 50 ml s(-1) (FeNO), the alveolar nitric oxide concentration (Calv), and the systemic inflammatory markers of the groups were compared...
June 29, 2017: Journal of Breath Research
https://www.readbyqxmd.com/read/28645522/acute-effects-of-ambient-temperature-and-particulate-air-pollution-on-fractional-exhaled-nitric-oxide-a-panel-study-among-diabetic-patients-in-shanghai-china
#7
Huichu Li, Hongjian Bai, Changyuan Yang, Renjie Chen, Cuicui Wang, Zhuohui Zhao, Haidong Kan
BACKGROUND: Epidemiological studies have shown the associations of ambient temperature and particulate matter (PM) air pollution with respiratory morbidity and mortality. However, the underlying mechanisms have not been well characterized. The aim of this study is to investigate the associations of temperature and fine and coarse PM with fractional exhaled nitric oxide (FeNO), a well-established biomarker of respiratory inflammation. METHODS: We conducted a longitudinal panel study involving six repeated FeNO tests among 33 type 2 diabetes mellitus patients from April to June 2013 in Shanghai, China...
June 20, 2017: Journal of Epidemiology
https://www.readbyqxmd.com/read/28636794/differences-and-similarities-between-bronchopulmonary-dysplasia-and-asthma-in-schoolchildren
#8
Björn Nordlund, Anna James, Christina Ebersjö, Gunilla Hedlin, Eva B Broström
BACKGROUND: The long-term respiratory characteristics of ex-preterm children with bronchopulmonary dysplasia (BPD) are not established. The objective of this study was to describe hallmarks of BPD at school age in comparison to children with atopic asthma. METHODS: This study was a cross-sectional descriptive comparative study in a hospital-based setting. Thirty schoolchildren diagnosed with BPD (10.4 years/born at 26.6 weeks' gestation) and 30 age- and sex-matched children with asthma and sensitized to airborne allergens (IgE >0...
June 21, 2017: Pediatric Pulmonology
https://www.readbyqxmd.com/read/28624608/obesity-s-impact-on-asthma-extends-to-diagnostic-criteria
#9
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/28592098/-the-effect-of-short-term-exposure-to-ambient-no-2-on-lung-function-and-fractional-exhaled-nitric-oxide-in-33-chronic-obstructive-pulmonary-disease-patients
#10
J Shan, Y Ni, W Dong, J H Xu, L Pan, H Y Li, X Yang, S W Wu, Y H Chen, F R Deng, X B Guo
Objectives: To investigate the effect of short-term exposure to ambient NO(2) has influence on lung function and fractional exhaled nitric oxide (FeNO) in chronic obstructive pulmonary disease (COPD) patients. Methods: A panel of doctor-diagnosed stable COPD patients (n=33) were recruited and repeatedly measured for lung function and FeNO from December 2013 to October 2014. The patients who lived in Beijing for more than one year and aged between 60 and 85 years old were included in the study. We excluded patients with asthma, bronchial tensor, lung cancer and other respiratory disorders other than chronic obstructive pulmonary disease and occupational exposure and chest trauma surgery patients...
June 6, 2017: Zhonghua Yu Fang Yi Xue za Zhi [Chinese Journal of Preventive Medicine]
https://www.readbyqxmd.com/read/28588744/effect-of-personal-exposure-to-black-carbon-on-changes-in-allergic-asthma-gene-methylation-measured-5%C3%A2-days-later-in-urban-children-importance-of-allergic-sensitization
#11
Kyung Hwa Jung, Stephanie Lovinsky-Desir, Beizhan Yan, David Torrone, Jennifer Lawrence, Jacqueline R Jezioro, Matthew Perzanowski, Frederica P Perera, Steven N Chillrud, Rachel L Miller
BACKGROUND: Asthma gene DNA methylation may underlie the effects of air pollution on airway inflammation. However, the temporality and individual susceptibility to environmental epigenetic regulation of asthma has not been fully elucidated. Our objective was to determine the timeline of black carbon (BC) exposure, measured by personal sampling, on DNA methylation of allergic asthma genes 5 days later to capture usual weather variations and differences related to changes in behavior and activities...
2017: Clinical Epigenetics
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/28579561/normal-values-of-offline-exhaled-and-nasal-nitric-oxide-in-healthy-children-and-teens-using-chemiluminescence
#13
Awen Menou, Diane Babeanu, Henry-Nicolas Paruit, Aline Ordureau, Sophie Guillard, Arnaud Christian Chambellan
Nitric oxide (NO) can be used to detect respiratory or ciliary diseases. Fractional exhaled nitric oxide (FeNO) measurement can reflect ongoing eosinophilic airway inflammation and has a diagnostic utility as a test for asthma screening and follow-up while nasal nitric oxide (nNO) is a valuable screening tool for the diagnosis of Primary Ciliary Dyskinesia (PCD). The possibility to collect airway gas samples in an offline manner offers the advantage to extend these measures and improve the screening and management of these diseases, but normal values from healthy children and teens remain sparse...
June 5, 2017: Journal of Breath Research
https://www.readbyqxmd.com/read/28544706/exhaled-nitric-oxide-pulmonary-function-and-disease-activity-in-children-with-systemic-lupus-erythematosus
#14
Jitladda Deerojanawong, Pitchaya Leartphichalak, Ankanee Chanakul, Suchada Sritippayawan, Rujipat Samransamruajkit
AIM: To determine the association among fractional exhaled nitric oxide (FENO), pulmonary function, and disease activity in children with systemic lupus erythematosus (SLE). METHODS: Children aged 7-18 years, diagnosed with SLE under the criteria of the American Rheumatism Association (revised 2012), were enrolled. All eligible participants had disease activity, FENO, and pulmonary function evaluated and re-evaluated at 6-month follow-up. RESULTS: Twenty-four children (95...
May 22, 2017: Pediatric Pulmonology
https://www.readbyqxmd.com/read/28527680/sensitivity-of-salivary-hydrogen-sulfide-to-psychological-stress-and-its-association-with-exhaled-nitric-oxide-and-affect
#15
Juliet L Kroll, Chelsey A Werchan, Audrey G Reeves, Kevin J Bruemmer, Alexander R Lippert, Thomas Ritz
BACKGROUND: Hydrogen sulfide (H2S) is the third gasotransmitter recently discovered after nitric oxide (NO) and carbon monoxide. Both NO and H2S are involved in multiple physiological functions. Whereas NO has been shown to vary with psychological stress, the influence of stress on H2S and the relationship between H2S and NO are unknown. We therefore examined levels of salivary H2S and NO in response to a stressful final academic exam period. METHODS: Measurements of stress, negative affect, and fraction of exhaled NO (FENO), were obtained from students (N=16) and saliva was collected at three time points: low-stress period in the semester, early exam period, and late exam period...
May 18, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/28524604/prevalence-of-high-fractional-exhaled-nitric-oxide-among-us-youth-with-asthma
#16
Duong T Nguyen, Brian K Kit, Debra Brody, Lara J Akinbami
BACKGROUND: High fractional exhaled nitric oxide (FeNO) is an indicator of poor asthma control and has been proposed as a non-invasive assessment tool to guide asthma management. OBJECTIVE: We aimed to describe the prevalence of and factors associated with high FeNO among US youth with asthma. METHODS: Data from 716 children and adolescents with asthma ages 6-19 years who participated in the 2007-2012 National Health and Nutrition Examination Survey were analyzed...
June 2017: Pediatric Pulmonology
https://www.readbyqxmd.com/read/28515405/a-case-of-bronchial-asthma-with-hypereosinophilia-with-effective-saibokutou-therapy
#17
Takahiro Tsuburai, Yousuke Kamide, Yuto Nakamura, Yasuhiro Tomita, Yuto Hamada, Kentaro Watai, Hiroaki Hayashi, Kiyoshi Sekiya, Chihiro Mitsui, Yuma Fukutomi, Akio Mori, Masami Taniguchi
A 42 year old woman visited on our hospital because of cough, sputum, pruritus and erythema. She showed peripheral blood eosinophilia, high level of FENO, bronchial hyperresponsiveness. Diagnosis of bronchial asthma and atopic dermatitis was made, but she rejected therapy except for Saibokutou, a Kampo herbal medicine. After 1 year, her symptoms and her laboratory data were improved.
2017: Arerugī, [Allergy]
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
#18
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]
https://www.readbyqxmd.com/read/28502417/analysis-of-bronchial-biopsies-in-chronic-cough
#19
Patricia Macedo, Qingling Zhang, Junpei Saito, Zhike Liang, Lorrette Ffolkes, Andrew G Nicholson, Kian Fan Chung
BACKGROUND: Chronic cough is commonly associated with asthma, gastro-oesophageal reflux disease and postnasal drip, but in a significant proportion, no associated cause can be found. We determined whether examination of bronchial biopsies would be useful in determining the cause associated with chronic cough. METHODS: 100 consecutive patients referred to a specialist cough clinic underwent a systematic assessment including a fiberoptic bronchoscopy for bronchial biopsies...
June 2017: Respiratory Medicine
https://www.readbyqxmd.com/read/28497918/allergic-rhinitis-in-preschool-children-and-the-clinical-utility-of-feno
#20
Jisun Yoon, Yean Jung Choi, Eun Lee, Hyun Ju Cho, Song I Yang, Young Ho Kim, Young Ho Jung, Ju Hee Seo, Ji Won Kwon, Hyo Bin Kim, So Yeon Lee, Bong Seong Kim, Jung Yeon Shim, Eun Jin Kim, Joo Shil Lee, Soo Jong Hong
PURPOSE: The nature of allergic rhinitis (AR) in preschool aged children remains incompletely characterized. This study aimed to investigate the prevalence of AR and its associated risk factors in preschool-aged children and to assess the clinical utility of fractional exhaled nitric oxide (FeNO). METHODS: This general population-based, cross-sectional survey included 933 preschool-aged (3- to 7-year-old) children from Korea. Current AR was defined as having nasal symptoms within the last 12 months and physician-diagnosed AR...
July 2017: Allergy, Asthma & Immunology Research
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