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Nasal polyps

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https://www.readbyqxmd.com/read/28225857/malignant-melanoma-with-synchronous-thyroid-metastases-case-report-and-literature-review
#1
Maria Manuel Costa, Sandra Belo, João Capela-Costa, Jennifer Costa, Davide Carvalho
Thyroid metastases are rare in clinical practice. We describe the case of an 85-year-old woman who was referred to our department due to a multinodular goiter with compressive symptoms and subclinical hyperthyroidism. The patient was also undergoing evaluation for a polyp in her left nasal cavity, which was then diagnosed as a malignant melanoma of the nasal mucosa. A thoracoabdominal magnetic resonance imaging obtained for cancer staging revealed a > 50% tracheal obstruction caused by the goiter. The patient underwent simultaneous total thyroidectomy and melanoma excision...
February 16, 2017: Archives of Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28219183/-how-to-predict-the-outcome-of-endoscopic-sinus-surgery-in-patients-with-chronic-sinusitis-with-nasal-polyps
#2
C S Wang, L Zhang
No abstract text is available yet for this article.
February 7, 2017: Zhonghua Er Bi Yan Hou Tou Jing Wai Ke za Zhi, Chinese Journal of Otorhinolaryngology Head and Neck Surgery
https://www.readbyqxmd.com/read/28219166/-the-value-of-sinonasal-ct-scan-in-diagnosing-of-eosinophilic-chronic-rhinosinusitis-with-nasal-polyps
#3
Y F Meng, H F Lou, C S Wang, L Zhang
Objective: To compare the value of sinonasal CT scan with other clinical parameters in the pre-diagnosis of eosinophilic chronic rhinosinusitis with nasal polyps (eCRSwNP). Methods: From January to May of 2016, One hundred and fifty consecutive CRSwNP patients (90 eCRSwNP and 60 non-eosinophilic CRSwNP) undergoing endoscopic functional sinus surgery in Beijing Tongren Hospital were recruited in this study. Preoperative CT scan, skin prick test (SPT) and oral fractional exhaled nitric oxide (FeNO) measurements were performed in each patient and full blood count with differential analysis was performed within 1 week before surgery...
February 7, 2017: Zhonghua Er Bi Yan Hou Tou Jing Wai Ke za Zhi, Chinese Journal of Otorhinolaryngology Head and Neck Surgery
https://www.readbyqxmd.com/read/28219163/-precision-medicine-in-patients-with-chronic-rhinosinusitis-with-nasal-polyps
#4
L Zhang
No abstract text is available yet for this article.
February 7, 2017: Zhonghua Er Bi Yan Hou Tou Jing Wai Ke za Zhi, Chinese Journal of Otorhinolaryngology Head and Neck Surgery
https://www.readbyqxmd.com/read/28216498/-significance-of-differential-diagnosis-for-sinonasal-mass-by-ct-value
#5
Yan Jiang, Jing Gao, Wenling Su
To explore whether CT value is useful in identifying different disease in tumors of rhinosinus parenchyma.
 Methods: The data of preoperation noncontrast CT in 277 patients were retrospectively reviewed. The final diagnosis and classification were based on the result of surgical histopathological examination. The CT value range for different classification was calculated and was compared. All patients were re-diagnosed according to CT value range combined with pathological results by the same doctor team...
January 28, 2017: Zhong Nan da Xue Xue Bao. Yi Xue Ban, Journal of Central South University. Medical Sciences
https://www.readbyqxmd.com/read/28216437/extracellular-eosinophilic-traps-in-association-with-staphylococcus-aureus-at-the-site-of-epithelial-barrier-defects-in-severe-airway-inflammation
#6
Elien Gevaert, Nan Zhang, Olga Krysko, Feng Lan, Gabriële Holtappels, Natalie De Ruyck, Hans Nauwynck, Shida Yousefi, Hans-Uwe Simon, Claus Bachert
BACKGROUND: Chronic rhinosinusitis with nasal polyps (CRSwNP) is characterized by a Th2-biased eosinophilic inflammation. Eosinophils have been shown to generate so-called extracellular eosinophilic traps (EETs) under similar pathological conditions. OBJECTIVE: Our aim was to investigate a possible link between EET formation and the presence of Staphylococcus aureus, an organism frequently colonizing the upper airways, at the human mucosal site of the disease. METHODS: Tissue slides were investigated for the presence of EETs and S...
February 16, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28199369/nasal-nitric-oxide-in-unilateral-sinus-disease
#7
Chia-Hsiang Fu, Hsiao-Jung Tseng, Chi-Che Huang, Po-Hung Chang, Yi-Wei Chen, Ta-Jen Lee
Unilateral sinus disease (USD) can sometimes be difficult to accurately diagnose before surgery. The application of nasal nitric oxide (nNO) for USD diagnosis and its surgical outcome in USD has not been reported in the literature. We prospectively enrolled sixty-six USD patients who underwent endoscopic sinus surgery for fungal rhinosinusitis (n = 19), chronic rhinosinusitis (CRS) without nasal polyps (n = 13), CRS with nasal polyps (n = 12) and sinonasal mass lesions (n = 22). nNO levels were measured preoperatively and at three and six months postoperatively...
2017: PloS One
https://www.readbyqxmd.com/read/28194153/nasal-polyp-derived-mesenchymal-stromal-cells-exhibit-lack-of-immune-associated-molecules-and-high-levels-of-stem-progenitor-cells-markers
#8
Pedro Wey Barbosa de Oliveira, Rogério Pezato, Juan Sebastian Henao Agudelo, Claudina Angela Perez-Novo, Wim Vanden Berghe, Niels Olsen Câmara, Danilo Candido de Almeida, Luís Carlos Gregorio
Mesenchymal stromal cells (MSCs) are considered adult progenitor stem cells and have been studied in a multitude of tissues. In this context, the microenvironment of nasal polyp tissue has several inflammatory cells, but their stroma compartment remains little elucidated. Hence, we isolated MSCs from nasal polyps Polyp-MSCs (PO-MSCs) and compared their molecular features and gene expression pattern with bone marrow-derived MSCs (BM-MSCs). Initially, both PO-MSCs and BM-MSCs were isolated, cultivated, and submitted to morphologic, differentiation, phenotypic, immunosuppressive, and gene expression assays...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28154930/association-between-computed-tomography-findings-and-clinical-symptoms-in-chronic-rhinosinusitis-with-and-without-nasal-polyps
#9
Tomislav Gregurić, Vladimir Trkulja, Tomislav Baudoin, Marko Velimir Grgić, Igor Šmigovec, Livije Kalogjera
Objective of this study was to test whether there is a difference between chronic rhinosinusitis patients with (CRSwNP) and without (CRSsNP) nasal polyps in the association of extent of disease on CT scans with symptom severity and health-related quality-of-life (HRQL) impairment. Data sets from 271 chronic rhinosinusitis (CRS) patients who completed the Sino-Nasal Outcome Test 22 (SNOT-22) and visual analog scale (VAS) scores were subjected to principal component analysis (PCA) to identify a symptom components related to CRS...
February 2, 2017: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/28152148/evaluation-of-a-minimally-disruptive-treatment-protocol-for-frontal-sinus-fractures
#10
Sapna A Patel, Angelique M Berens, Karthik Devarajan, Mark E Whipple, Kris S Moe
Importance: Despite common goals of frontal sinus fracture treatment (restoring forehead contour and creating a safe sinus), there remains significant variability in evaluation and treatment. Objective: To describe our experience with a minimally disruptive treatment protocol for the treatment of frontal sinus fractures. Design, Setting, and Participants: Analysis of prospectively collected data from 2010 through 2015 at a level 1 trauma center...
February 2, 2017: JAMA Facial Plastic Surgery
https://www.readbyqxmd.com/read/28149657/evaluation-of-olfactory-function-in-beh%C3%A3-et-s-disease
#11
Lütfi Akyol, Emre Günbey, Rıfat Karlı, Soner Önem, Metin Özgen, Mehmet Sayarlıoğlu
OBJECTIVE: Behçet's disease (BD) is a chronic, relapsing type of vasculitis of unknown etiology and is characterized by oral and urogenital ulcers and ocular inflammation with cutaneous, musculoskeletal, vascular, and nervous system manifestations. Few cases involving the nasal mucosa have been reported in the literature, and the true prevalence of BD remains unknown. Neurological involvement associated with BD might play a more important role in causing olfactory dysfunction than mucosal involvement, but sufficient clinical data are not available on the effect of BD on olfaction in adults...
December 2016: European Journal of Rheumatology
https://www.readbyqxmd.com/read/28145939/methotrexate-induces-apoptosis-in-organ-cultured-nasal-polyps-via-the-fas-pathway
#12
Kyung Wook Heo, Seong Kook Park, Yeo Myeong Lee, Si Hong Choe, Pyung Mo Gu, Tae Ui Hong, Dae Young Hur
OBJECTIVE: Methotrexate (MTX) is very effective when used to treat chronic inflammatory diseases, and also induces apoptosis in nasal polyps (NPs). Increasing evidence suggests that Fas-Fas ligand (FasL) interactions activate multiple pathways involved in the regulation of immune and inflammatory cell functions. The aim of the present study was to identify pathways activated by Fas signaling when NPs were treated with MTX. METHODS: Nasal polyps tissues were cultured using an air-liquid interface organ culture method...
January 31, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28126433/two-inflammatory-phenotypes-of-nasal-polyps-and-comorbid-asthma
#13
Dawei Wu, Lun Li, Min Zhang, Jianting Wang, Yongxiang Wei
BACKGROUND: Nasal polyps and comorbid asthma (NPCA) is a common united airway disease. However, the inflammatory phenotyes of NPCA are not clear. OBJECTIVE: To identify inflammatory phenotypes of NPCA. METHODS: A total of 106 patients diagnosed with NPCA were recruited from rhinologic clinics. A combined method of biopsies from nasal polyps and fractional exhaled nitric oxide (FeNO) was used to explore inflammatory phenotyes of NPCA. Patients were evaluated with respect to clinical, functional, and inflammatory parameters...
January 23, 2017: Annals of Allergy, Asthma & Immunology
https://www.readbyqxmd.com/read/28126245/double-blind-placebo-controlled-randomized-clinical-trial-of-verapamil-for-chronic-rhinosinusitis-with-nasal-polyps
#14
Marcel M Miyake, Angela Nocera, Patricia Levesque, Rong Guo, Christine A Finn, Jeremy Goldfarb, Stacey Gray, Eric Holbrook, Nicolas Busaba, Jose Eduardo L Dolci, Benjamin S Bleier
No abstract text is available yet for this article.
January 11, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28124658/significance-of-undissected-retromaxillary-air-cells-as-a-risk-factor-for-revision-endoscopic-sinus-surgery
#15
Edward C Kuan, Jon Mallen-St Clair, John W Frederick, Bobby A Tajudeen, Marilene B Wang, Richard J Harvey, Jeffrey D Suh
BACKGROUND: Retromaxillary air cells (RMC) are posterior ethmoid cells that separate the maxillary and ethmoid sinuses. The clinical significance of these cells in contributing to revision functional endoscopic sinus surgery (FESS) is unknown. OBJECTIVES: To investigate the prevalence, anatomic dimensions, and radiographic characteristics of RMC in patients with recalcitrant chronic rhinosinusitis after previous FESS. METHODS: A retrospective review of patients who underwent revision FESS at a tertiary medical center between January 1, 2012, and December 31, 2014...
November 1, 2016: American Journal of Rhinology & Allergy
https://www.readbyqxmd.com/read/28124651/aspirin-exacerbated-respiratory-disease-prevalence-diagnosis-treatment-and-considerations-for-the-future
#16
Joshua L Kennedy, Ashley N Stoner, Larry Borish
Aspirin-exacerbated respiratory disease (AERD) is a late onset condition characterized by the Samter triad (aspirin sensitivity [as well as sensitivity to any nonselective cyclooxygenase inhibitor], nasal polyps, asthma) and additional features, including eosinophilic chronic rhinosinusitis, hypereosinophilia, anosmia, frequent absence of atopy, and, intolerance to ingestion of red wine and other alcoholic beverages. The diagnosis is rare, and, because of this, it is also often missed by physicians. However, it is highly overexpressed in patients with severe asthma (and severe chronic rhinosinusitis with nasal polyps), which makes its recognition essential...
November 1, 2016: American Journal of Rhinology & Allergy
https://www.readbyqxmd.com/read/28124647/effect-of-doxycycline-on-transforming-growth-factor-beta-1-induced-matrix-metalloproteinase-2-expression-migration-and-collagen-contraction-in-nasal-polyp-derived-fibroblasts
#17
Jae-Min Shin, Joo-Hoo Park, Byungjin Kang, Seoung-Ae Lee, Il-Ho Park, Heung-Man Lee
PURPOSE: It is well known that doxycycline has antibacterial and anti-inflammatory effects. In this study, we aimed to investigate the effects of doxycycline on the transforming growth factor (TGF) beta 1-induced matrix metalloproteinase (MMP) 2 expression, migration, and collagen contraction, and to determine its molecular mechanism on nasal polyp-derived fibroblasts (NPDF). METHODS: NPDFs were isolated from the nasal polyps of six patients. Doxycycline was used to pretreat TGF-beta-1-induced NPDFs and ex vivo organ cultures of nasal polyps...
November 1, 2016: American Journal of Rhinology & Allergy
https://www.readbyqxmd.com/read/28124643/rapamycin-inhibits-transforming-growth-factor-beta-1-induced-myofibroblast-differentiation-via-the-phosphorylated-phosphatidylinositol-3-kinase-mammalian-target-of-rapamycin-signal-pathways-in-nasal-polyp-derived-fibroblasts
#18
Dong-Yn Ko, Jae-Min Shin, Ji-Young Um, Byungjin Kang, Il-Ho Park, Heung-Man Lee
PURPOSE: Rapamycin has antiproliferative and antifibrogenic effects in vitro and in vivo. The purpose of this study was to evaluate the effects of rapamycin on transforming growth factor (TGF) beta 1 induced myofibroblast differentiation (alpha smooth-muscle actin [SMA]), extracellular matrix production, and collagen contraction in nasal polyp-derived fibroblasts (NPDF). The underlying molecular mechanisms of rapamycin were also determined in NPDFs. METHODS: NPDFs were grown in culture and transformed into myofibroblasts by using TGF beta 1 (5 ng/mL)...
November 1, 2016: American Journal of Rhinology & Allergy
https://www.readbyqxmd.com/read/28123509/different-roles-of-staphylococcus-aureus-enterotoxin-in-different-subtypes-of-nasal-polyps
#19
Ke-Jia Cheng, Shen-Qing Wang, Ying-Ying Xu
Chronic rhinosinusitis with nasal polyps (CRSwNP) is a multifactorial disease. The pathogenesis of CRSwNP remains unclear. This study was designed to investigate the role of inflammation and Staphylococcus aureus enterotoxin (SE) in this disease. The study included a total of 74 patients with CRSwNP and 6 controls. A serum Phadiatop assay was conducted to detect atopy status, and serum eosinophil cationic protein (ECP) and total immunoglobulin (Ig)E levels were determined using ELISA. SEA, SEB, total IgE, ECP and myeloperoxidase (MPO) levels in nasal tissue supernatant were measured using ELISA...
January 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28122962/staphylococcus-aureus-downregulates-ip-10-production-and-prevents-th1-cell-recruitment
#20
Zhigang Li, Benoît Levast, Joaquín Madrenas
Staphylococcal superantigens cause toxic shock syndrome, which is characterized by massive T cell activation and a predominant Th1 profile of cytokine production. However, superantigen-producing Staphylococcus aureus strains are often part of the human nasal microbiome, and this carrier state has often been associated with some type 2 immune responses such as chronic sinusitis with polyps and atopic dermatitis. We have previously reported that the S. aureus cell wall downregulates the human T cell response to superantigens through a TLR2-dependent, IL-10-mediated mechanism...
January 25, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
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