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Nasal nitric oxide

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https://www.readbyqxmd.com/read/29661611/nasal-polyposis-or-chronic-olfactory-rhinitis
#1
R Jankowski, C Rumeau, P Gallet, D T Nguyen
The concept of chronic rhinosinusitis with or without polyps is founded on the structural and functional unicity of the pituitary mucosa and its united response to environmental aggression by allergens, viruses, bacteria, pollution, etc. The present review sets this concept against the evo-devo three-nose theory, in which nasal polyposis is distinguished as specific to the olfactory nose and in particular to the non-olfactory mucosa of the ethmoid, which is considered to be not a sinus but rather the skull-base bone harboring the olfactory mucosa...
April 13, 2018: European Annals of Otorhinolaryngology, Head and Neck Diseases
https://www.readbyqxmd.com/read/29643854/the-role-of-quinine-responsive-taste-receptor-family-2-in-airway-immune-defense-and-chronic-rhinosinusitis
#2
Alan D Workman, Ivy W Maina, Steven G Brooks, Michael A Kohanski, Beverly J Cowart, Corrine Mansfield, David W Kennedy, James N Palmer, Nithin D Adappa, Danielle R Reed, Robert J Lee, Noam A Cohen
Background: Bitter (T2R) and sweet (T1R) taste receptors in the airway are important in innate immune defense, and variations in taste receptor functionality in one T2R (T2R38) correlate with disease status and disease severity in chronic rhinosinusitis (CRS). Quinine is a bitter compound that is an agonist for several T2Rs also expressed on sinonasal cells, but not for T2R38. Because of this property, quinine may stimulate innate immune defense mechanisms in the airway, and functional differences in quinine perception may be reflective of disease status in CRS...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29552357/nasal-nitric-oxide-levels-in-hiv-infection-a-cross-sectional-study
#3
Cecilia T Costiniuk, Vikram Mehraj, Jean-Pierre Routy, Christina de Castro, Natale Wasef, Mohammad-Ali Jenabian, Syim Salahuddin, Bertrand Lebouché, Joseph Cox, Jason Szabo, Marina Klein, Larry Lands, Adam J Shapiro
Introduction: Low levels of nasal NO have been associated with increased propensity to rhinosinusitis and respiratory tract infections. Our objective was to describe nasal NO levels in HIV-infected individuals versus healthy controls and determine possible risk factors for reduced nasal NO levels. Materials and Methods: HIV-infected individuals and healthy controls were recruited. Participants underwent nasal NO testing by standardized methods using a CLD88 chemiluminescence analyzer and completed the Sinonasal Outcome Test-20 (SNOT-20) on symptoms of rhinosinusitis...
2018: AIDS Research and Treatment
https://www.readbyqxmd.com/read/29500848/acute-health-effects-of-desktop-3d-printing-fused-deposition-modeling-using-acrylonitrile-butadiene-styrene-and-polylactic-acid-materials-an-experimental-exposure-study-in-human-volunteers
#4
I Gümperlein, E Fischer, G Dietrich-Gümperlein, S Karrasch, D Nowak, R A Jörres, R Schierl
3D printers are increasingly run at home. Nanoparticle emissions from those printers have been reported, which raises the question whether adverse health effects from ultrafine particles (UFP) can be elicited by 3D printers. We exposed 26 healthy adults in a single-blinded, randomized, cross-over design to emissions of a desktop 3D printer using fused deposition modeling (FDM) for 1 hour (high UFP-emitting acrylonitrile butadiene styrene [ABS] vs low-emitting polylactic acid [PLA]). Before and after exposures, cytokines (IL-1β, IL-6, TNF-α, INF-γ) and ECP in nasal secretions, exhaled nitric oxide (FeNO), urinary 8-isoprostaglandin F2α (8-iso PGF2α ), and self-reported symptoms were assessed...
March 3, 2018: Indoor Air
https://www.readbyqxmd.com/read/29490941/olfactory-dysfunction-is-worse-in-primary-ciliary-dyskinesia-compared-with-other-causes-of-chronic-sinusitis-in-children
#5
Massimo Pifferi, Andrew Bush, Michele Rizzo, Alessandro Tonacci, Maria Di Cicco, Martina Piras, Fabrizio Maggi, Giulia Paiola, Angela Michelucci, Angela Cangiotti, Diego Peroni, Davide Caramella, Attilio L Boner
Cilia have multiple functions including olfaction. We hypothesised that olfactory function could be impaired in primary ciliary dyskinesia (PCD). Olfaction, nasal nitric oxide (nNO) and sinus CT were assessed in patients with PCD and non-PCD sinus disease, and healthy controls (no CT scan). PCD and non-PCD patients had similar severity of sinus disease. Despite this, defective olfaction was more common in patients with PCD (P<0.0001) and more severe in patients with PCD with major Transmission Electron Microscopy (TEM) abnormalities...
February 28, 2018: Thorax
https://www.readbyqxmd.com/read/29477568/asthma-phenotypes-defined-from-parameters-obtained-during-recovery-from-a-hospital-treated-exacerbation
#6
Rihuang Qiu, Jiaxing Xie, Kian Fan Chung, Naijian Li, Zhaowei Yang, Mengzhang He, Jing Li, Rongchang Chen, Nanshan Zhong, Qingling Zhang
BACKGROUND: Asthma is a heterogeneous disease with diverse clinical manifestations and inflammatory pathologies that is punctuated by exacerbations. OBJECTIVE: To describe the clinical and inflammatory characteristics of patients with asthma treated in hospital for an acute exacerbation. METHODS: Data from 320 adult patients receiving treatment for an acute exacerbation of asthma were obtained. In 218 patients with complete data, we used the Ward hierarchical clustering to obtain clusters...
March 1, 2018: Journal of Allergy and Clinical Immunology in Practice
https://www.readbyqxmd.com/read/29468535/methodological-implications-and-repeatability-of-nasal-nitric-oxide-relevance-for-challenge-studies
#7
Frank Hoffmeyer, K Sucker, H Berresheim, C Monsé, B Jettkant, A Beine, M Raulf, T Brüning, J Bünger
There is an interest in assessing changes in nasal NO (nNO) levels as an effect marker of upper airways. In this study, we examined methodologic influences on short and long term repeatability of nNO levels assessed by a portable electrochemical analyzer. Nine atopic and eighteen healthy subjects were exposed for 4 h to ethyl acrylate concentration of 0.05 ppm (sham) and mean concentrations of 5 ppm (either constant 5 ppm or variable 0 to 10 ppm). Sampling of nNO was performed by using passive aspiration during both breath-holding (634 ppb) or calm tidal breathing (364 ppb, p < 0...
February 22, 2018: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/29464415/inflammatory-biomarkers-during-bacterial-acute-rhinosinusitis
#8
REVIEW
Timo J Autio, Timo Koskenkorva, Petri Koivunen, Olli-Pekka Alho
PURPOSE OF REVIEW: Diagnosis of bacterial acute rhinosinusitis is difficult. Several attempts have been made to clarify the diagnostic criteria. Inflammatory biomarkers are easily obtainable variables that could shed light on both the pathophysiology and diagnosis of bacterial acute rhinosinusitis. The purpose of this review article is to assess literature concerning the course of inflammatory biomarkers during acute rhinosinusitis and the use of inflammatory biomarkers in diagnosing bacterial acute rhinosinusitis...
February 21, 2018: Current Allergy and Asthma Reports
https://www.readbyqxmd.com/read/29451844/pulmonary-delivery-of-therapeutic-and-diagnostic-gases
#9
Warren M Zapol, H Cecil Charles, Andrew R Martin, Rui C Sá, Binglan Yu, Fumito Ichinose, Neil MacIntyre, Joseph Mammarappallil, Richard Moon, John Z Chen, Eric T Geier, Chantal Darquenne, G Kim Prisk, Ira Katz
The 21st Congress for the International Society for Aerosols in Medicine included, for the first time, a session on Pulmonary Delivery of Therapeutic and Diagnostic Gases. The rationale for such a session within ISAM is that the pulmonary delivery of gaseous drugs in many cases targets the same therapeutic areas as aerosol drug delivery, and is in many scientific and technical aspects similar to aerosol drug delivery. This article serves as a report on the recent ISAM congress session providing a synopsis of each of the presentations...
April 2018: Journal of Aerosol Medicine and Pulmonary Drug Delivery
https://www.readbyqxmd.com/read/29444915/predictors-of-accelerated-decline-in-lung-function-in-adult-onset-asthma
#10
Hanneke Coumou, Guus A Westerhof, Selma B de Nijs, Aeilko H Zwinderman, Elisabeth H Bel
Little is known about the prognosis of adults with new-onset asthma. Cross-sectional studies suggest that these patients may exhibit accelerated decline in forced expiratory volume in 1 s (FEV1 ). However, risk factors for accelerated decline in lung function have not yet been identified.We aimed to identify these risk factors in a prospective 5-year follow-up study in 200 adults with newly diagnosed asthma. In the current study, clinical, functional and inflammatory parameters were assessed annually for 5 years...
February 2018: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
https://www.readbyqxmd.com/read/29444099/airway-ciliary-dysfunction-and-respiratory-symptoms-in-patients-with-transposition-of-the-great-arteries
#11
Maliha Zahid, Abha Bais, Xin Tian, William Devine, Dong Ming Lee, Cyrus Yau, Daniel Sonnenberg, Lee Beerman, Omar Khalifa, Cecilia W Lo
BACKGROUND: Our prior work on congenital heart disease (CHD) with heterotaxy, a birth defect involving randomized left-right patterning, has shown an association of a high prevalence of airway ciliary dysfunction (CD; 18/43 or 42%) with increased respiratory symptoms. Furthermore, heterotaxy patients with ciliary dysfunction were shown to have more postsurgical pulmonary morbidities. These findings are likely a reflection of the common role of motile cilia in both airway clearance and left-right patterning...
2018: PloS One
https://www.readbyqxmd.com/read/29434763/correlation-between-upper-and-lower-airway-inflammations-in-patients-with-combined-allergic-rhinitis-and-asthma-syndrome-a-comparison-of-patients-initially-presenting-with-allergic-rhinitis-and-those-initially-presenting-with-asthma
#12
Shu Xia, Zheng Zhu, Wei-Jie Guan, Yan-Qing Xie, Jia-Ying An, Tao Peng, Rong-Chang Chen, Jin-Ping Zheng
Allergic rhinitis (AR) and asthma often coexist. The terminology combined allergic rhinitis and asthma syndrome (CARAS) was introduced to describe patients with combined AR and asthma. The aim of the present study was to evaluate the correlation between eosinophilic inflammation in the upper and lower airways of patients with CARAS. Stable patients with CARAS initially presenting with AR or asthma were recruited. Healthy subjects and patients with AR alone were recruited as controls. Clinical characteristics, including disease history, lung function, nasal airway inspiratory resistance and upper and lower airway eosinophilic inflammation were evaluated and compared...
February 2018: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29434745/tubeimoside-i-attenuates-inflammation-and-oxidative-damage-in-a-mice-model-of-pm-2-5-induced-pulmonary-injury
#13
Jin-Bo Zhang, Lei Zhang, Shi-Qing Li, Ai-Hua Hou, Wei-Chao Liu, Ling-Ling Dai
In the present study, the effects of tubeimoside I (TBMS1) on particulate matter <2.5 µm in diameter (PM2.5 )-induced pulmonary injury and its mechanisms of action were investigated. Male BALB/c mice were randomly assigned into five groups (n=10/group): Control, PM2.5 , PM2.5 + TBMS1 45 mg/kg, PM2.5 + TBMS1 90 mg/kg and PM2.5 + TBMS1 180 mg/kg. The dose of the PM2.5 suspension administered to the mice was 40 mg/kg via nasal instillation. The PM2.5 + TBMS1 groups received TBMS1 daily orally for 21 consecutive days, while the mice in the control and PM2...
February 2018: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29432042/relationship-between-upper-airway-diseases-exhaled-nitric-oxide-and-bronchial-hyperresponsiveness-to-methacholine
#14
Marina Lluncor, Pilar Barranco, Emerson-Daniel Amaya, Javier Domínguez-Ortega, Valentín López-Carrasco, Isabel Coman, Santiago Quirce
OBJECTIVE: The "united airway disease" concept is based on the bidirectional interaction between asthma and rhinitis. The aim of this study was to determine the relationship between upper airway diseases and bronchial hyperresponsiveness (BHR), as well as their association with the fractional concentration of exhaled nitric oxide (FeNO) and atopy in patients with persistent symptoms suggestive of asthma requiring methacholine challenge testing (MCT) to confirm asthma diagnosis...
February 12, 2018: Journal of Asthma: Official Journal of the Association for the Care of Asthma
https://www.readbyqxmd.com/read/29395935/factors-reducing-omalizumab-response-in-severe-asthma
#15
B Sposato, M Scalese, M Milanese, S Masieri, C Cavaliere, M Latorre, N Scichilone, A Matucci, A Vultaggio, A Ricci, A Cresti, P Santus, A Perrella, P L Paggiaro
BACKGROUND: Despite adding Omalizumab to conventional therapy, several severe asthmatics still show poor disease control. We investigated the factors that may affect a reduced Omalizumab response in a large population of severe asthmatics. METHODS: 340 patients were retrospectively evaluated. FEV1 %, FVC%, Asthma Control Test (ACT), fractional exhaled nitric oxide (FENO), possible step-downs/step-ups of concomitant therapies, exacerbations, disease control levels, ICS doses and SABA use, observed at the end of treatment, were considered as a response to Omalizumab...
January 29, 2018: European Journal of Internal Medicine
https://www.readbyqxmd.com/read/29385900/looking-to-the-future-of-nasal-drug-delivery-an-interview-with-per-gisle-djupesland
#16
Per G Djupesland
Per G Djupesland, MD, PhD speaks to Hannah Makin, Commissioning Editor: Dr Djupesland is the inventor of OptiNose® 's patented, bi-directional nasal drug-delivery technology and is a Co-Founder of OptiNose AS. Dr. Djupesland is a lead inventor on all 38 OptiNose patent families/patent applications, and serves as Chief Scientific Officer of OptiNose AS, with primary responsibility for device discovery and early development efforts. These early development efforts include identifying new product opportunities that use bi-directional technology, advancing the design of devices using the bi-directional technology to treat a variety of medical conditions and conducting Phase I and IIa trials with new 'nose-to-brain' applications for the technology...
February 1, 2018: Therapeutic Delivery
https://www.readbyqxmd.com/read/29380192/interleukin-13-stimulates-production-of-nitric-oxide-in-cultured-human-nasal-epithelium
#17
Johnny L Carson, Michelle Hernandez, Ilona Jaspers, Katherine Mills, Luisa Brighton, Haibo Zhou, Jing Zhang, Milan J Hazucha
The diversity and extent of signaling functions of nitric oxide (NO) in cell physiology as well as its presence and influence as a common component of ambient air pollution and tobacco smoke are gaining increasing research attention relative to both health and disease. While cellular NO production is typically associated with inflammatory cells and processes, the airway epithelium particularly of the paranasal sinuses, has been documented to be a rich source of excreted NO. Inasmuch as excreted NO derives from both mucosal and inflammatory cell sources, distinguishing the individual contribution of these compartments to total excreted cellular NO is potentially problematic...
March 2018: In Vitro Cellular & Developmental Biology. Animal
https://www.readbyqxmd.com/read/29341484/nasal-ventilation-is-an-important-factor-in-evaluating-the-diagnostic-value-of-nasal-nitric-oxide-in-allergic-rhinitis
#18
Jing Hou, Hongfei Lou, Yang Wang, Fei He, Feifei Cao, Chengshuo Wang, Luo Zhang
BACKGROUND: The role of nasal nitric oxide (NO) in the diagnosis of allergic rhinitis (AR) is controversial. The aim of this study was to identify factors that may affect levels of nasal NO in AR patients and evaluate the role of nasal NO in the diagnosis of AR. METHODS: Seventy-five AR patients and 31 healthy controls were enrolled in this study. AR symptom scores were assessed using the visual analog scale. Eosinophil cationic protein (ECP) was detected by enzyme-linked immunoassay, nasal NO was measured using a chemiluminescence analyzer, and nasal airway resistance (NAR) was assessed by active anterior rhinomanometry...
January 17, 2018: International Forum of Allergy & Rhinology
https://www.readbyqxmd.com/read/29279062/comparison-of-the-effect-of-5-grass-pollen-sublingual-immunotherapy-tablets-and-drops-in-children-with-rhinoconjunctivitis
#19
Joanna Jerzynska, Wlodzimierz Stelmach, Pawel Majak, Rafal Stelmach, Anna Janas, Iwona Stelmach
BACKGROUND: One of the most important aspects of sublingual immunotherapy (SLIT) is the regimen of administration. AIM: To find any differences in symptom-medication scores between the two groups of SLIT tablets and drops, given pre-coseasonally (starting 8 weeks before the pollen season) in children with rhinoconjunctivitis allergy to grass pollen. The secondary outcome were the differences in lung function and induction of T-regulatory forkhead box P3 (FOXP3) positive cells...
January 1, 2018: Allergy and Asthma Proceedings:
https://www.readbyqxmd.com/read/29276419/lessons-from-unilateral-loss-of-cilia-early-nasal-nitric-oxide-gas-mixing-and-the-role-of-sinus-patency-in-determining-nasal-nitric-oxide
#20
Kenneth Rodriguez, Benjamin Gaston, Jay Wasman, Nadzeya Marozkina
Nasal nitric oxide (nNO) measurement is a diagnostic test for primary ciliary dyskinesia (PCD). Here, we have shown the development of unilateral PCD-like symptoms associated with low nNO. A 60-year-old man had been previously healthy but developed unilateral, severe pansinusitis. He required surgical drainage of all left sinuses, and biopsies showed loss of the ciliated epithelium. At 4 weeks, he had unilateral (left-sided), profuse, clear rhinorrhea characteristic of PCD, and his surgical ostia were all patent endoscopically...
2017: Clinical Medicine Insights. Ear, Nose and Throat
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