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https://www.readbyqxmd.com/read/28527680/sensitivity-of-salivary-hydrogen-sulfide-to-psychological-stress-and-its-association-with-exhaled-nitric-oxide-and-affect
#1
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 17, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/28524604/prevalence-of-high-fractional-exhaled-nitric-oxide-among-us-youth-with-asthma
#2
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
#3
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
#4
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
#5
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
#6
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
https://www.readbyqxmd.com/read/28491110/tai-chi-chuan-exercise-improves-pulmonary-function-and-decreases-exhaled-nitric-oxide-level-in-both-asthmatic-and-nonasthmatic-children-and-improves-quality-of-life-in-children-with-asthma
#7
Hsin-Chia Lin, Hao-Pai Lin, Hsin-Hui Yu, Li-Chieh Wang, Jyh-Hong Lee, Yu-Tsan Lin, Yao-Hsu Yang, Pei-Yi Li, Wei-Zen Sun, Bor-Luen Chiang
Tai-Chi-Chuan (TCC) is an exercise of low-to-moderate intensity which is suitable for asthmatic patients. The aim of our study is to investigate improvements of the lung function, airway inflammation, and quality of life of asthmatic children after TCC. Participants included sixty-one elementary school students and they were divided into asthmatic (n = 29) and nonasthmatic (n = 32) groups by the International Study of Asthma and Allergies in Childhood (ISAAC) questionnaire. Among them, 20 asthmatic and 18 nonasthmatic children volunteered to participate in a 60-minute TCC exercise weekly for 12 weeks...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/28490872/correlation-between-fractional-exhaled-nitric-oxide-and-sputum-eosinophilia-in-exacerbations-of-copd
#8
Jie Gao, Min Zhang, Liqin Zhou, Xing Yang, Haigui Wu, Jianfang Zhang, Feng Wu
INTRODUCTION: Measurements of eosinophils in induced sputum and fractional exhaled nitric oxide (FeNO) are noninvasive biomarkers for assessing airway inflammation phenotypes in chronic obstructive pulmonary disease (COPD). Nevertheless, the clinical application of the correlation between FeNO levels and sputum eosinophilia is controversial. The study aimed to investigate the correlation and predictive relationship between FeNO levels and sputum eosinophils in patients with COPD exacerbation...
2017: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/28486753/small-airway-function-before-and-after-cold-dry-air-challenge-in-pediatric-asthma-patients-during-remission
#9
Michael Steinbacher, Andreas Pfleger, Gerold Schwantzer, Stefanie Jauk, Elisabeth Weinhandl, Ernst Eber
BACKGROUND: We wanted to compare cold dry air challenge (CACh) induced changes in spirometric parameters with changes in nitrogen multiple breath washout (N2 MBW) parameters in pediatric asthma patients during clinical remission over the past year (ie, with "inactive asthma"). As N2 MBW assesses ventilation heterogeneity we expected to gain detailed information about peripheral airways contribution. METHODS: In subjects with normal spirometry N2 MBW, spirometry and body plethysmography were performed at baseline, after CACh, and after salbutamol inhalation...
May 9, 2017: Pediatric Pulmonology
https://www.readbyqxmd.com/read/28486343/fractional-exhaled-nitric-oxide-feno-and-spirometry-as-indicators-of-inhalation-exposure-to-chemical-agents-in-pathology-workers
#10
Ritsuko Arakawa Suzuki, Toshiya Irokawa, Hiromasa Ogawa, Shinya Ohkouchi, Masao Tabata, Susumu Togashi, Takeshi Nakamura, Noriko Ohisa, Etsuhiro Nikkuni, Emiri Miura, Kaoru Yoshida, Hiroshi Inomata, Hajime Kurosawa
OBJECTIVE: The objective of this study was to examine whether fractional exhaled nitric oxide (FeNO) and spirometry can be used as indices to evaluate adverse health effects of low-concentrated chemical inhalation exposure, mainly to formaldehyde. METHODS: Thirty-three subjects (pathology technicians) and 30 controls (workers without handling any chemicals in the same hospitals) participated in this study. All participants underwent FeNO measurement and spirometry before and after 5 days of work...
May 2017: Journal of Occupational and Environmental Medicine
https://www.readbyqxmd.com/read/28481126/increased-levels-of-alveolar-and-airway-exhaled-nitric-oxide-in-runners
#11
Alexandra Thornadtsson, Nikola Drca, Fabio Ricciardolo, Marieann Högman
AIM: The objective of this study was to apply extended NO analysis for measurements of NO dynamics in the lung, divided into alveolar and airway contribution, in amateur runners and marathoners. METHODS: The athletes participated in either a marathon or a half marathon. The athletes self-reported their age, weight, height, training distance per week, competing distance, cardio-pulmonary health, atopic status, and use of tobacco. Measurements of exhaled NO (FENO) with estimation of alveolar NO (CANO) and airway flux (JawNO), ventilation, pulse oximetry, and peak flow were performed before, immediately after, and 1 hour after completing the race...
May 8, 2017: Upsala Journal of Medical Sciences
https://www.readbyqxmd.com/read/28474411/a-trial-of-oral-corticosteroids-for-persistent-systemic-and-airway-inflammation-in-severe-asthma
#12
Keiji Oishi, Tsunahiko Hirano, Ryo Suetake, Syuichiro Ohata, Yoshikazu Yamaji, Kosuke Ito, Nobutaka Edakuni, Kazuto Matsunaga
INTRODUCTION: The fraction of exhaled nitric oxide (FeNO) and blood eosinophils, markers of local and systemic eosinophilic inflammation, respectively, are increased in asthmatic patients. Little is known concerning the relationship between the FeNO levels and blood eosinophils in asthmatics. METHODS: Twenty severe asthmatics with persistent FeNO elevation (≥40 ppb) and blood eosinophilia (≥3%) despite maintenance therapy including high-daily-dose inhaled corticosteroids were analyzed...
May 4, 2017: Immunity, Inflammation and Disease
https://www.readbyqxmd.com/read/28474352/airway-basophils-are-increased-and-activated-in-eosinophilic-asthma
#13
Yoshihiro Suzuki, Keiko Wakahara, Tomoko Nishio, Satoru Ito, Yoshinori Hasegawa
BACKGROUND: The impact of basophils on asthma pathogenesis remains largely unexplored, particularly in humans. Here, we evaluated the frequencies and activation status of basophils in the sputum of adult asthmatic patients and related our findings to other parameters of eosinophilic airway inflammation. METHODS: We enrolled 44 adult asthmatic patients who were being treated with inhaled corticosteroids (ICS). Analysis of the induced sputum, exhaled nitric oxide fraction (FeNO) measurement, and Asthma Control Test (ACT) were carried out together with standard blood and pulmonary function tests...
May 5, 2017: Allergy
https://www.readbyqxmd.com/read/28461299/th-2-signature-in-chronic-airway-diseases-towards-the-extinction-of-asthma-copd-overlap-syndrome
#14
Borja G Cosío, Luis Pérez de Llano, Antolin Lopez Viña, Alfons Torrego, Jose Luis Lopez-Campos, Joan B Soriano, Eva Martinez Moragon, Jose Luis Izquierdo, Irina Bobolea, Javier Callejas, Vicente Plaza, Marc Miravitlles, Juan Jose Soler-Catalunya
We aimed to describe the differences and similarities between patients with chronic obstructive airway disease classified on the basis of classical diagnostic labels (asthma, chronic obstructive pulmonary disease (COPD), or asthma-COPD overlap (ACOS)) or according to the underlying inflammatory pattern (Th-2 signature, either Th-2-high or Th-2-low).We performed a cross-sectional study of patients aged ≥40 years and with a post-bronchodilator forced expiratory volume in 1 s to forced vital capacity ratio ≤0...
May 2017: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
https://www.readbyqxmd.com/read/28446552/a-european-respiratory-society-technical-standard-exhaled-biomarkers-in-lung-disease
#15
Ildiko Horváth, Peter J Barnes, Stelios Loukides, Peter J Sterk, Marieann Högman, Anna-Carin Olin, Anton Amann, Balazs Antus, Eugenio Baraldi, Andras Bikov, Agnes W Boots, Lieuwe D Bos, Paul Brinkman, Caterina Bucca, Giovanna E Carpagnano, Massimo Corradi, Simona Cristescu, Johan C de Jongste, Anh-Tuan Dinh-Xuan, Edward Dompeling, Niki Fens, Stephen Fowler, Jens M Hohlfeld, Olaf Holz, Quirijn Jöbsis, Kim Van De Kant, Hugo H Knobel, Konstantinos Kostikas, Lauri Lehtimäki, Jon Lundberg, Paolo Montuschi, Alain Van Muylem, Giorgio Pennazza, Petra Reinhold, Fabio L M Ricciardolo, Philippe Rosias, Marco Santonico, Marc P van der Schee, Frederik-Jan van Schooten, Antonio Spanevello, Thomy Tonia, Teunis J Vink
Breath tests cover the fraction of nitric oxide in expired gas (FeNO), volatile organic compounds (VOCs), variables in exhaled breath condensate (EBC) and other measurements. For EBC and for FeNO, official recommendations for standardised procedures are more than 10 years old and there is none for exhaled VOCs and particles. The aim of this document is to provide technical standards and recommendations for sample collection and analytic approaches and to highlight future research priorities in the field. For EBC and FeNO, new developments and advances in technology have been evaluated in the current document...
April 2017: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
https://www.readbyqxmd.com/read/28442577/association-between-exposure-in-the-cement-production-industry-and-non-malignant-respiratory-effects-a-systematic-review
#16
Anne Kristin Møller Fell, Karl Christian Nordby
OBJECTIVES: Based on findings from a systematic literature search, we present and discuss the evidence for an association between exposure to cement dust and non-malignant respiratory effects in cement production workers. DESIGN AND SETTING: Systematic literature searches (MEDLINE and Embase) were performed. Outcomes were restricted to respiratory symptoms, lung function indices, asthma, chronic bronchitis, chronic obstructive pulmonary disease, pneumoconiosis, induced sputum or fraction of exhaled nitric oxide (FeNO) measurements...
April 24, 2017: BMJ Open
https://www.readbyqxmd.com/read/28440062/predictive-value-of-serum-sst2-in-preschool-wheezers-for-development-of-asthma-with-high-feno
#17
Maria E Ketelaar, Kim D G van de Kant, F Nicole Dijk, Ester M M Klaassen, Néomi Grotenboer, Martijn C Nawijn, Edward Dompeling, Gerard H Koppelman
Wheezing is common in childhood. However, current prediction models of paediatric asthma have only modest accuracy. Novel biomarkers and definition of subphenotypes may improve asthma prediction. Interleukin-1-receptor-Like-1 is a well-replicated asthma-gene and associates with eosinophilia. We investigated whether serum sST2 predicts asthma and asthma with elevated exhaled NO (FeNO), compared to the commonly used Asthma Prediction Index (API). Using logistic regression modeling, we found that serum sST2 levels in 2-3y old wheezers do not predict doctors' diagnosed asthma at age 6y...
April 25, 2017: Allergy
https://www.readbyqxmd.com/read/28422487/stepwise-deoxygenation-of-nitrite-as-a-route-to-two-families-of-ruthenium-corroles-group-8-periodic-trends-and-relativistic-effects
#18
Abraham B Alemayehu, Hugo Vazquez-Lima, Kevin J Gagnon, Abhik Ghosh
Given the many applications of ruthenium porphyrins, the rarity of ruthenium corroles and the underdeveloped state of their chemistry are clearly indicative of an area ripe for significant breakthroughs. The tendency of ruthenium corroles to form unreactive metal-metal-bonded dimers has been recognized as a key impediment in this area. Herein, by exposing free-base meso-tris(p-X-phenyl)corroles, H3[TpXPC] (X = CF3, H, Me, and OMe), and [Ru(COD)Cl2]x in refluxing 2-methoxyethanol to nitrite, we have been able to reliably intercept the series Ru[TpXPC](NO) in a matter of seconds to minutes and subsequently Ru(VI)[TpXPC](N), the products of a second deoxygenation, over some 16 h...
April 19, 2017: Inorganic Chemistry
https://www.readbyqxmd.com/read/28417625/influence-of-sensitization-patterns-on-fractional-exhaled-nitric-oxide-in-asthmatic-children
#19
Miao Qing, Xu Wei, Li Zhen, Guan Hui, Liu Xiao-Ying, Huang Hui-Jie, Wang Yan, Ren Yi-Xin, Liu Yong-Ge, Xiang Li
Fractional exhaled nitric oxide (FeNO) has been suggested as a non-invasive biomarker of airway inflammation, which is increased in atopic subjects. Whether sensitization to particular allergens is a predictive factor for increased FeNO levels is not yet fully understood. We conducted a retrospective cross-sectional study. From October to December in 2015, the medical documents of 127 mild, steroid-naive asthmatic children and 34 healthy age-matched children were enrolled in this study. The results of the FeNO measurements, skin prick test, and the spirometry were collected for analysis...
February 2017: Iranian Journal of Allergy, Asthma, and Immunology
https://www.readbyqxmd.com/read/28407829/-application-of-pulmonary-function-and-fractional-exhaled-nitric-oxide-tests-in-the-standardized-management-of-bronchial-asthma-in-children
#20
Hui-Qin Zhang, Hui-Qin Zhang, Jing-Jing Zhang, Yu-Dong Liu, Yue-Lin Deng, Jian-Feng Luo, Huan-Hong Niu, Xin Sun
OBJECTIVE: To investigate the changes of pulmonary function and fractional exhaled nitric oxide (FeNO) in the standardized treatment of bronchial asthma in children. METHODS: A total of 254 children who were newly diagnosed with acute exacerbation of bronchial asthma were selected as asthma group, and they were divided into two subgroups: asthma with concurrent rhinitis and asthma without concurrent rhinitis. All patients received the standardized management and treatment for one year...
April 2017: Zhongguo Dang Dai Er Ke za Zhi, Chinese Journal of Contemporary Pediatrics
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