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Nasal polyps

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https://www.readbyqxmd.com/read/28634018/distribution-subtype-population-and-ige-positivity-of-mast-cells-in-chronic-rhinosinusitis-with-nasal-polyps
#1
Shintaro Baba, Kenji Kondo, Maho Suzukawa, Ken Ohta, Tatsuya Yamasoba
BACKGROUND: Chronic rhinosinusitis with nasal polyps (CRSwNP) has been categorized into 2 subtypes in the Asian population: eosinophilic chronic rhinosinusitis (ECRS; similar to CRSwNP in Western countries) and non-ECRS (characterized by inflammation dominated by T-helper cell type 1). The pathogenesis of CRSwNP and the role of mast cells are poorly understood. OBJECTIVE: To investigate the distribution, phenotypes, and immunoglobulin E (IgE) positivity of mast cells in these 2 subtypes of CRSwNP...
June 17, 2017: Annals of Allergy, Asthma & Immunology
https://www.readbyqxmd.com/read/28625807/evidence-for-altered-levels-of-immunoglobulin-d-in-the-nasal-airway-mucosa-of-patients-with-chronic-rhinosinusitis
#2
Jin-Young Min, Jayakar V Nayak, Kathryn E Hulse, Whitney W Stevens, Paul A Raju, Julia H Huang, Lydia A Suh, Griet A Van Roey, James E Norton, Roderick G Carter, Caroline P E Price, Ava R Weibman, Ali R Rashan, Eliver E Ghosn, Zara M Patel, Tetsuya Homma, David B Conley, Kevin C Welch, Stephanie Shintani-Smith, Anju T Peters, Leslie C Grammer, Kathleen E Harris, Atsushi Kato, Peter H Hwang, Robert C Kern, Leonore A Herzenberg, Robert P Schleimer, Bruce K Tan
BACKGROUND: Immunoglobulin D (IgD) is an enigmatic antibody isotype best known when co-expressed with IgM on naïve B cells. However, elevated soluble IgD (sIgD) and increased IgD(+)IgM(-) B cell populations have been described in the human upper respiratory mucosa. OBJECTIVE: We assessed whether levels of sIgD and IgD(+) B cells are altered in nasal tissue from patients with chronic rhinosinusitis (CRS). We further characterized IgD(+) B cell populations and explored clinical and local inflammatory factors associated with tissue sIgD levels...
June 15, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28625008/the-role-of-local-allergy-in-the-nasal-inflammation
#3
REVIEW
Ke-Jia Cheng, Min-Li Zhou, Ying-Ying Xu, Shui-Hong Zhou
Local allergic inflammation (LAI) is recognized recently. 'entopy' was used to define LAI, which was positively correlated with allergen provocation testing, local sIgE up-regulation, inflammatory mediator secretion, and a lack of systemic allergy. The study of LAI is in its infancy and focuses mainly on the respiratory system. It is closely related to nasal inflammation and plays important roles in patients with nonallergic rhinitis (NAR), nonallergic chronic sinusitis with nasal polyps (CRSwNP), and nonallergic fungal rhinosinusitis (NAFRS)...
June 17, 2017: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/28624844/the-effect-of-endoscopic-sinus-surgery-on-quality-of-life-and-absenteeism-in-patients-with-chronic-rhinosinuitis-a-multi-centre-study
#4
P Sahlstrand-Johnson, C Hopkins, B Ohlsson, M Ahlner-Elmqvist
BACKGROUND: Chronic rhinosinusitis with and without nasal polyps (CRSw/sNP) are common conditions decreasing health-related quality of life (HRQOL). Individual symptoms capable of predicting outcome after endoscopic sinus surgery (ESS) are poorly defined, and the indirect costs of CRS is rarely reported in Europe. METHODOLOGY: Patients with CRSw/sNP admitted for ESS were prospectively enrolled. Patients completed the 22 Sinonasal Outcome Test (SNOT-22), the short-form 36-item questionnaire (SF-36), a Visual Analogue Scale (VAS) and reported CRS-related absenteeism pre- and post-operatively...
June 18, 2017: Rhinology
https://www.readbyqxmd.com/read/28623534/acquired-immunity-in-chronic-rhinosinusitis
#5
REVIEW
Bruce K Tan, Jin-Young Min, Kathryn E Hulse
Chronic rhinosinusitis (CRS) is a prevalent disease that is associated with significant costs and quality of life impairments. Currently, patients are classified into subgroups based on clinical characteristics, most often the presence or absence of nasal polyps. However, despite medical and surgical treatment, many of these patients continue to have symptoms. Recent efforts have focused on gaining a more complete understanding of the inflammatory mechanisms that drive pathogenesis in CRS, and it is becoming clear that the inflammatory processes in CRS are quite complex...
July 2017: Current Allergy and Asthma Reports
https://www.readbyqxmd.com/read/28621024/the-validity-of-nasal-endoscopy-in-patients-with-chronic-rhinosinusitis-an-interrater-agreement-study
#6
K L Larsen, B Lange, P Darling, G Jørgensen, A D Kjeldsen
OBJECTIVES: Nasal endoscopy is a cornerstone in diagnosing sinonasal disease but different raters might generate different results using the technique. Our study aims to evaluate the agreement between multiple raters to assess the validity of nasal endoscopy. DESIGN/PARTICIPANTS: Three independent and blinded raters evaluated 28 patients (56 nasal cavities) diagnosed with chronic rhinosinusitis according to the European Position Paper on Rhinosinusitis and Nasal Polyps...
June 16, 2017: Clinical Otolaryngology
https://www.readbyqxmd.com/read/28615628/glucocorticoids-ameliorate-tgf-%C3%AE-1-mediated-epithelial-to-mesenchymal-transition-of-airway-epithelium-through-mapk-and-snail-slug-signaling-pathways
#7
Hyun-Woo Yang, Seoung-Ae Lee, Jae-Min Shin, Il-Ho Park, Heung-Man Lee
Chronic rhinosinusitis with nasal polyps (CRSwNP) is closely associated with tissue remodeling. Epithelial-to-mesenchymal transition (EMT), a process of tissue remodeling, can be a therapeutic target of CRSwNP. Glucocorticoids are a type of steroid hormone that is used primarily in medical therapy for patients with CRSwNP; however, their effects on EMT in the airway epithelium remain unknown. To investigate the effects of dexamethasone and fluticasone propionate, a class of glucocorticoids, on transforming growth factor-β1 (TGF-β1) -induced EMT, we used A549 cells, human primary nasal epithelial cells (hPNECs) and ex vivo organ culture of the inferior turbinate...
June 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28602009/update-on-intranasal-medications-in-rhinosinusitis
#8
REVIEW
Kornkiat Snidvongs, Sanguansak Thanaviratananich
This review describes beneficial effects and adverse events of various intranasal medications in treating rhinosinusitis. Application of intranasal steroids has been described in treating all subtypes of adult rhinosinusitis, but reports are limited in pediatrics and mostly in acute pediatric subgroups resulted in benefits While saline irrigation is effective for patients with chronic rhinosinusitis without polyps and in pediatric acute rhinosinusitis, there is no evidence yet for saline drips and sprays. Application of intranasal antifungals and nasal irrigation with surfactant brings more harm than benefits...
July 2017: Current Allergy and Asthma Reports
https://www.readbyqxmd.com/read/28587510/effects-of-fluticasone-furoate-nasal-spray-on-parameters-of-eosinophilic-inflammation-in-patients-with-nasal-polyposis-and-perennial-allergic-rhinitis
#9
Cveta Špadijer Mirković, Aleksandar Perić, Biserka Vukomanović Đurđević, Danilo Vojvodić
OBJECTIVES: Regulated on activation normal T cell expressed and secreted (RANTES) and eotaxin-2 have been postulated to be responsible for eosinophilia in chronically inflamed nasal mucosa. This study evaluated mucosal production of RANTES and eotaxin-2 in patients with perennial allergic rhinitis (PAR) and nonallergic and allergic form of chronic rhinosinusitis with nasal polyps (CRSwNP) before and after nasal corticosteroid treatment. METHODS: Twenty patients with PAR, 20 nonallergic and 20 allergic CRSwNP patients, and 20 healthy controls were included...
June 1, 2017: Annals of Otology, Rhinology, and Laryngology
https://www.readbyqxmd.com/read/28585128/expression-of-il-17-and-syndecan-1-in-nasal-polyps-and-their-correlation-with-nasal-polyps
#10
Guo-Qing Gong, Fang-Fang Ren, Yan-Jun Wang, Lang Wan, Shan Chen, Jie Yuan, Chuan-Mei Yang, Bang-Hua Liu, Wei-Jia Kong
Nasal polyp (NP) is a common chronic inflammatory disease of the nasal cavity and sinuses. Although some authors have suggested that NP is related to inflammatory factors such as interleukin (IL)-1β, IL-5, IL-8, granulocyte-macrophage colony-stimulating factor (GM-CSF), tumor necrosis factor (TNF)-α, and IL-17, the mechanisms underlying the pathogenesis and progression of NP remain obscure. This study investigated the expression and distribution of IL-17 and syndecan-1 in NP, and explored the roles of these two molecules in the pathogenesis of eosinophilic chronic rhinosinusitis with nasal polyps (Eos CRSwNP) and non-Eos CRSwNP...
June 2017: Journal of Huazhong University of Science and Technology. Medical Sciences
https://www.readbyqxmd.com/read/28575786/clinical-features-of-igg4-related-rhinosinusitis
#11
Machiko Hanaoka, Terumi Kammisawa, Satomi Koizumi, Sawako Kuruma, Kazuro Chiba, Masataka Kikuyama, Satoshi Shirakura, Taro Sugimoto, Tsunekazu Hishima
PURPOSE: IgG4-related disease is a systemic disease that affects various organs of the body. Aim of this study is to elucidate the clinical characteristics of IgG4-related rhinosinusitis. MATERIAL AND METHODS: Clinical features, laboratory findings, radiological and endoscopic findings, associated disease, treatment and prognosis were retrospectively examined in 10 patients with IgG4-related rhinosinusitis. RESULTS: The age was 59.1±11.3 years old and male-to-female ratio was 1:1...
May 30, 2017: Advances in Medical Sciences
https://www.readbyqxmd.com/read/28574651/impact-of-tobacco-smoke-on-upper-airway-dendritic-cell-accumulation-and-regulation-by-sinonasal-epithelial-cells
#12
Jennifer K Mulligan, Brendan P O'Connell, Whitney Pasquini, Ryan M Mulligan, Sarah Smith, Zachary M Soler, Carl Atkinson, Rodney J Schlosser
BACKGROUND: In these studies we examined the impact of environmental tobacco smoke (ETS) and active smoking on sinonasal dendritic cell (DC) subsets in controls or patients with chronic rhinosinusitis with nasal polyps (CRSwNP). In subsequent in-vitro investigations, we examined the influence of cigarette smoke extract (CSE) on human sinonasal epithelial cells' (HSNECs) ability to regulate DC functions. METHODS: Sinonasal tissue, blood, and hair were collected from patients undergoing sinus surgery...
June 2, 2017: International Forum of Allergy & Rhinology
https://www.readbyqxmd.com/read/28558147/safety-and-efficacy-of-a-bioabsorbable-fluticasone-propionate-eluting-sinus-dressing-in-postoperative-management-of-endoscopic-sinus-surgery-a-randomized-clinical-trial
#13
Gwijde F J P M Adriaensen, Keng-Hua Lim, Wytske J Fokkens
BACKGROUND: Postoperative wound healing after endoscopic sinus surgery (ESS) in patients with chronic rhinosinusitis (CRS) is an important factor in procedural success. Local steroids and separation of opposing mucosa are commonly implemented to optimize healing. A bioabsorbable, fluticasone propionate (FP)-eluting implant, SinuBand FP, was assessed for its safety and efficacy when used in patients with CRS and nasal polyps, who were indicated for ESS including bilateral anterior and posterior ethmoidectomy...
May 30, 2017: International Forum of Allergy & Rhinology
https://www.readbyqxmd.com/read/28552275/delayed-type-of-allergic-skin-reaction-to-candida-albicans-in-eosinophilic-rhinosinusitis-cases
#14
Nozomu Wakayama, Shoji Matsune, Kimihiro Okubo
OBJECTIVE: Eosinophilic chronic rhinosinusitis (ECRS) is frequently complicated by asthma, and recognized as refractory and persistent rhinosinusitis. However, the detailed pathophysiology of ECRS has not been elucidated yet. In this study, we investigated the association between recurrent ECRS and intradermal testing to multi-antigens including Candida albicans. METHODS: The subjects were 49 cases of bilateral chronic rhinosinusitis including 24 ECRS cases. They underwent endoscopic sinus surgery and submitted to pathological examination...
May 25, 2017: Auris, Nasus, Larynx
https://www.readbyqxmd.com/read/28544530/denatonium-induced-sinonasal-bacterial-killing-may-play-a-role-in-chronic-rhinosinusitis-outcomes
#15
Ryan M Carey, Alan D Workman, Kyle M Hatten, Adam P Siebert, Steven G Brooks, Bei Chen, Nithin D Adappa, James N Palmer, David W Kennedy, Robert J Lee, Noam A Cohen
BACKGROUND: Sinonasal bitter taste receptors (T2Rs) contribute to upper airway innate immunity and correlate with chronic rhinosinusitis (CRS) clinical outcomes. A subset of T2Rs expressed on sinonasal solitary chemosensory cells (SCCs) are activated by denatonium, resulting in a calcium-mediated secretion of bactericidal antimicrobial peptides (AMPs) in neighboring ciliated epithelial cells. We hypothesized that there is patient variability in the amount of bacterial killing induced by different concentrations of denatonium and that the differences correlate with CRS clinical outcomes...
May 23, 2017: International Forum of Allergy & Rhinology
https://www.readbyqxmd.com/read/28532656/the-il-33-st2-axis-is-crucial-in-type-2-airway-responses-induced-by-the-staphylococcus-aureus-protease-spld
#16
Andrea R Teufelberger, Maria Nordengrün, Harald Braun, Tania Maes, Katrien De Grove, Gabriele Holtappels, Clara O'Brien, Sharen Provoost, Hamida Hammad, Amanda Gonçalves, Rudi Beyaert, Wim Declercq, Peter Vandenabeele, Dmitri V Krysko, Barbara M Bröker, Claus Bachert, Olga Krysko
BACKGROUND: Chronic airway inflammatory diseases such as chronic rhinosinusitis with nasal polyps and asthma showed increased nasal Staphylococcus aureus (S. aureus) colonization. Serine protease like protein D (SplD) and other closely related proteases secreted by S. aureus have recently been identified as inducers of allergic asthma in humans and mice but their mechanism of action is largely unknown. OBJECTIVE: We investigated the role of recombinant SplD in driving Th2-biased responses and IgE formation in a murine model of allergic asthma...
May 19, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28530264/cyclamen-europaeum-improves-the-effect-of-oral-antibiotics-on-exacerbations-and-recurrences-of-chronic-rhinosinusitis-a-real-life-observational-study-chronos
#17
A S Lopatin, O A Ivanchenko, S S Soshnikov, J Mullol
Chronic rhinosinusitis (CRS) is an inflammatory disease of the nose and paranasal sinuses affecting 11% of the European population. Cyclamen europaeum plant extract (CE) has demonstrated efficacy in treating acute rhinosinusitis, but its role in CRS exacerbations remains unknown. In this real-life, prospective, epidemiological, observational study, a total of 317 patients with exacerbations of CRS without nasal polyps (CRSsNP) of moderate severity were treated using three different options: oral antibiotics, CE extract nasal spray, or the combination of oral antibiotic with CE extract...
May 22, 2017: Acta Otorhinolaryngologica Italica
https://www.readbyqxmd.com/read/28526278/biotherapeutics-in-chronic-rhinosinusitis-with-and-without-nasal-polyps
#18
Claus Bachert, Philippe Gevaert, Peter Hellings
In western countries, 85% of chronic rhinosinusitis with nasal polyp disease reveals a type 2 inflammatory pattern with expression of IL-4, -5, and -13 as well as increased concentrations of IgE, whereas chronic rhinosinusitis without nasal polyps merely expresses these biomarkers. The degree of type 2 inflammation furthermore is associated with disease severity, asthma comorbidity, and recurrence of disease after surgery. Therefore, these biomarkers also form the targets for innovative therapeutic approaches such as monoclonal antibodies directed against IgE, IL-5, and IL-4 receptor alpha, blocking the activity of IL-4 and -13...
May 16, 2017: Journal of Allergy and Clinical Immunology in Practice
https://www.readbyqxmd.com/read/28523041/functional-endoscopic-sinus-surgery-as-a-primary-modality-of-treatment-for-primary-and-recurrent-nasal-polyposis
#19
Mohammad Shahid Gohar, Saleem Asif Niazi, Sohail Baber Niazi
OBJECTIVES: To describe the efficacy of Functional Endoscopic Sinus Surgery(FESS) in our set up in comparison with other published studies to treat primary and recurrent nasal polyposis. METHOD: This descriptive study was conducted in 02 years at Ear Nose Throat Department Combined Military Hospital (CMH) Multan from October 2013 to October 2015. Convenient sample comprising 116 patients of both sexes of age group from 18 to 60 years were selected from ENT Out Patient Department, with documented diagnosis of nasal polyposis that underwent functional endoscopic sinus surgery...
March 2017: Pakistan Journal of Medical Sciences Quarterly
https://www.readbyqxmd.com/read/28521083/inflammatory-infiltrate-and-mucosal-remodeling-in-chronic-rhinosinusitis-with-and-without-polyps-structured-histopathologic-analysis
#20
Hannah N Kuhar, Bobby A Tajudeen, Mahboobeh Mahdavinia, Paolo Gattuso, Ritu Ghai, Pete S Batra
BACKGROUND: Chronic rhinosinusitis (CRS) is commonly classified into CRS with nasal polyps (CRSwNP) and CRS without nasal polyps (CRSsNP). Structured histopathologic reporting has the potential to identify salient histologic markers to differentiate subtypes and provide insights into pathophysiologic mechanisms in CRS. METHODS: A structured histopathology report of 13 variables was prospectively employed to analyze ethmoid sinus tissue removed during endoscopic sinus surgery for 99 patients, including 43 CRSsNP and 56 CRSwNP...
May 18, 2017: International Forum of Allergy & Rhinology
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