Results 41 to 50 of about 13,960 (212)

Chemical Ionization Mass Spectrometry: Fundamental Principles, Diverse Applications, and the Latest Technological Frontiers

Mass Spectrometry Reviews, EarlyView.
ABSTRACT The review examines the evolution of chemical ionization mass spectrometry (CI‐MS), a technique developed in 1966 by Field and Munson. CI is a soft‐ionization method that produces more intense molecular ions with less fragmentation than electron ionization (EI).
Malvika Dutt, Adriana Arigò, Giorgio Famiglini, Pierangela Palma, Achille Cappiello   +4 more
wiley   +1 more source

An assessment of fractional exhaled nitric oxide inchildren with allergic rhinitis

Pediatria i Medycyna Rodzinna, 2016
Allergic rhinitis is an inflammatory condition of the nasal mucosa usually elicited by IgE-mediated response to allergen exposure. It is currently considered the most common allergic disease.
Ewa Dadas-Stasiak, Anna Jung, Katarzyna Jobs, Bolesław Kalicki   +3 more
doaj   +1 more source

[Exhaled nitric oxide].

Allergologia et immunopathologia, 2000
Nitric oxide is a molecule that under normal conditions is synthesised from L-arginine, thanks to the action of the so called NOS-c (nitric oxide synthethase constituents) in different cells, in very small amounts. They behave like a neurotransmitter, modulating different vascular functions of the flat muscle in the aerial vias.
S, Osanai, H, Ide, Y, Yamamoto, H, Nakano, K, Kikuchi   +4 more
openaire   +3 more sources

Role Of Exhaled Nitric Oxide As A Predictor Of Atopy [PDF]

D39. EVALUATION AND MONITORING OF ASTHMA AND COPD, 2012
Abstract Background The fractional exhaled nitric oxide (FeNO) is a quantitative, noninvasive and safe measure of airways inflammation that may complement the assessment of asthma. Elevations of FeNO have recently been found to correlate with allergic sensitization.
Romero, Karina M., Robinson, Colin L., Baumann, Lauren M., Gilman, Robert H., Hamilton, Robert G., Hansel, Nadia N, Checkley, William, PURA Study Investigators   +7 more
openaire   +6 more sources

Exhaled nitric oxide and inducible nitric oxide synthase gene polymorphism in Japanese asthmatics

Allergology International, 2016
Background: Inducible nitric oxide synthase (iNOS) induced by inflammatory cytokines and iNOS activity in bronchial epithelial cells is a major determinant of fractional exhaled nitric oxide (FeNO) levels.
Suguru Sato, Xintao Wang, Junpei Saito, Atsuro Fukuhara, Manabu Uematsu, Yasuhito Suzuki, Yuki Sato, Kenichi Misa, Takefumi Nikaido, Naoko Fukuhara, Yoshinori Tanino, Mitsuru Munakata   +11 more
doaj   +1 more source

Sargassum Lung Syndrome: Air Flow Obstruction and Bronchial Inflammation Are Observed After Prolonged Exposure to Sargassum Gas Emissions in the Eastern Caribbean

Environmental Toxicology, EarlyView.
ABSTRACT Sargassum inundation of Caribbean and American shorelines is a growing environmental hazard. Hydrogen sulfide (H2S) and ammonia (NH3) produced by decomposing Sargassum could be involved in airway obstruction and bronchial inflammation. The study was undertaken to evaluate the effects of exposure to H2S and NH3 gases emitted during Sargassum ...
Rishika Banydeen, Jonathan Florentin, Maxime Boutourlinsky, Remi Nguyen, Fatima Radouani, Moustapha Agossou, Gary Lutin, Thierry Lebrun, Remi Neviere, Dabor Resiere   +9 more
wiley   +1 more source

Exhaled Nitric Oxide in a Population Sample of Adults [PDF]

Respiration, 2007
<i>Background:</i> The relationship between exhaled nitric oxide (FENO) and the diagnosis of asthma in the general adult population is not completely clear. <i>Objectives:</i> To investigate the association between FENO and asthma, after controlling for atopy and rhinitis, in a general population sample of adults (mean age 43 ...
Bommarito L, Migliore E, Bugiani M, HEFFLER, ENRICO MARCO, Guida G, Bucca C, de Marco R, Rolla G, Bono R, Bugiani M, Piccioni P, Irando A, Arossa W, Caria E, Castiglioni G, Migliore E, Romano C, Fabbro D, Ciccone G, Magnani C, Irando OP, Gigli R, Brussino L, Bucca C, Rolla G, Aime M, Cerutti A, Chiampo F, Gallo W, Sulotto F.   +29 more
openaire   +4 more sources

Use of Exhaled Nitric Oxide as a Biomarker in Diagnosis and Management of Chronic Obstructive Pulmonary Disease

Journal of Primary Care & Community Health, 2016
Background: Chronic obstructive pulmonary disease (COPD), a progressive and nonreversible disease, is a leading cause of mortality and morbidity throughout the world.
Ahmed A. Arif, Colin Mitchell
doaj   +1 more source

Small Airways Dysfunction and Remission in Adults With Asthma: A Longitudinal Exploratory Analysis of the AssessmenT of smalL Airways involvemeNT In aSthma (ATLANTIS) Study

Allergy, EarlyView.
We conducted a post hoc analysis of ATLANTIS, a multinational prospective study including 684 adults with asthma. Fewer small airway symptoms and lower disease activity are independently associated with asthma remission. Replicated airway transcriptomic signatures show increased IL‐4/13 signalling and reduced coagulation pathways across the ATLANTIS ...
Akshi Kumar, Rory Chan, Nazanin Zounemat‐Kermani, Eleanor Quek, Ian M. Adcock, Bianca Beghe, Christopher Brightling, Dave Singh, Janwillem Kocks, Alberto Papi, Klaus F. Rabe, Ulrica Scaffidi‐Argentina, Maarten van den Berge, Monica Kraft, Salman Siddiqui   +14 more
wiley   +1 more source

Exhaled Nitric Oxide in Patients with Esophagitis

Advances in Respiratory Medicine, 2011
Introduction: Assessment of nitric oxide (NO) concentration in exhaled air is broadly used to monitor the airway inflammation in asthma. High levels of NO are also observed in paranasal sinuses and gastrointestinal tract (GT). Properly functioning esopahageal sphincters are responsible for maintaining NO in the GT.
Anna Dor-Wojnarowska, Jerzy Liebhart, Marcin Grabowski, Leszek Czapla, Krzysztof Grabowski, Bernard Panaszek   +5 more
openaire   +2 more sources