نتایج جستجو برای: nasal polyp

تعداد نتایج: 51558  

Journal: :Iranian journal of pathology 2016
Alireza Azizzadeh Delshad Mohammadreza Jalali Nadoushan Ali Davati Aida Rostami

BACKGROUND Nasal inflammatory disorders such as chronic rhinosinusitis and nasal polyp are among the most prevalent complications with high socioeconomic costs. Vascular Endothelial Growth Factor (VEGF) plays a key role in angiogenesis and cell proliferation. In the present study the effect of VEGF on the development and prognosis of chronic rhinosinusitis and nasal polyp was investigated. ME...

2014
Abhinav Srivastava Chander Mohan

Eustachian tube maintains middle ear pressure equal to that of atmospheric pressure and its functions is deranged due to various nasal, nasopharyngeal and palatal causes. Nasal polypi cause post nasal drip which is considered to cause Eustachian tube dysfunction. The present cross sectional study comprises of a total of 39 patients of Antrochoanal polyp with the aim to see the effect of antroch...

Journal: :Korean journal of otorhinolaryngology-head and neck surgery 2023

Fibroepithelial polyp (FEP) is a benign tumor of mesodermal origin, which mostly found on the skin. FEPs in upper respiratory system are reported originating from oropharynx and larynx, rarely nasal cavity. A 57-year-old female presented with polyp-like lesion right septal mucosa adjacent to mucocutaneous junction. The mass was surgically removed, diagnosis FEP made based histopathological revi...

Journal: :International Journal For Multidisciplinary Research 2022

Sushruta has mentioned 31 Rogas of Nasa in which Nasarsha is described. can be correlated to Nasal polyp. It a benign mass inflamed mucosal tissue wall. Some common symptoms polyp congestion, sneezing, headache and runny nose. The prevalence rate polyps approximately 1% 4% general population. Certain medications surgeries are used treat Polyp modern science with major reccurence rate. In Ayurve...

Background and Objective: Nasal polyp is the most common benign mass of the nasal cavity and it is originated from nasal cavity or sinuses. Cytokeratins (CK) are intermediate filament proteins that provide mechanical support in epithelial cells. The purpose of this study was to compare the expression of cytokeratin 7 in epithelium of nasal polyps and nasal mucosa in chronic rhinosinusitis. Mate...

Journal: :Kulak burun bogaz ihtisas dergisi : KBB = Journal of ear, nose, and throat 2009
Hakan Birkent Serdar Karahatay Abdullah Durmaz Bülent Kurt Fuat Tosun

Most of the nasal polyps arise from the lateral walls of the nasal cavity. Nasal polyps originating from the nasal septum with choanal extension are extremely rare. We report a case of large choanal polyp that arised from the posterosuperior aspect of the nasal septum, and extended down to the oropharynx. A 52-year-old woman presented with a two-year history of progressive nasal obstruction and...

2010
Ornpreya Suptawiwat Pongsakorn Tantilipikorn Chompunuch Boonarkart Jate Lumyongsatien Mongkol Uiprasertkul Pilaipan Puthavathana Prasert Auewarakul

BACKGROUND Influenza viruses bind and infect respiratory epithelial cells through sialic acid on cell surface. Differential preference to sialic acid types contributes to host- and tissue-tropism of avian and seasonal influenza viruses. Although the highly pathogenic avian influenza virus H5N1 can infect and cause severe diseases in humans, it is not efficient in infecting human upper respirato...

2010
Norihisa Ogata Keisuke Masuyama Makoto Yoshida Hidetoshi Asai Muchun Wang Yasuhiro Samejima Masao Eura Noriaki Tsunoda Takeru Ishikawa

Aspirin-induced asthma is often accompanied by nasal polyps, in which tissue eosinophils are abundant and activated. However, the mechanism of eosinophil infiltration remains unknown. We encountered two aspirin-induced asthma patients with nasal polyps and investigated eosinophil infiltration into nasal polyp tissue. Eosinophil chemotactic activity of extracts from the nasal polyp was elevated ...

2009
Manabu Nonaka Nozomu Ogihara Akira Fukumoto Atsuko Sakanushi Kaoru Kusama Ruby Pawankar Toshiaki Yagi

BACKGROUND : Accumulation of T cells and immature dendritic cells (DCs) is one of the characteristic features of nasal polyps. However, the question remains why these cells accumulate in nasal polyp tissue. Macrophage inflammatory protein-3α; (MIP-3α;/CCL20) is a chemokine involved in the migration of T cells and immature DCs into inflammatory tissue sites. Fibroblasts are a rich source of cyto...

Journal: :The Journal of Experimental Medicine 1994
F A Symon G M Walsh S R Watson A J Wardlaw

Tissue eosinophilia is a characteristic feature of a number of inflammatory diseases including asthma and nasal polyposis. Eosinophil migration into tissues is controlled in part by interactions between eosinophil adhesion receptors and counter-structures on the vascular endothelium. To determine the receptors used by eosinophils to adhere to vascular endothelium in allergic inflammation we hav...

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