نتایج جستجو برای: nasal polyp
تعداد نتایج: 51558 فیلتر نتایج به سال:
This review is addressed two pathophysiologic mechanisms implicated in the pathogenesis of nasal polyposis: the unique remodeling process found in nasal polyp tissue and the immune response of patients with nasal polyposis to Staphylococcus aureus. These two theories converge to the same direction in different aspects, including decreased extracellular matrix production, impaired T regulation a...
Objectives: To evaluate the various local causes for and management of epistaxis by using rigid nasal endoscope. Methods: Totally 50 patients with epistaxis were analyzed over a period of 1 year in Sri Venkateshwara ENT Institute and Bowring and Lady Curzon hospital using rigid nasal endoscope either under Local or General anesthesia. Those patients in whom, the cause for epistaxis was difficul...
OBJECTIVES/HYPOTHESIS The role of fungi in chronic rhinosinusitis (CRS) is still controversial. The present study was conducted to detect and identify fungal species from the nasal polyp tissues of eosinophilic and noneosinophilic CRS, and to determine the role of fungal antigens in cytokine production. STUDY DESIGN Prospective study. METHODS Thirty-five specimens of nasal polyps were colle...
PURPOSE Fungi, rhinoviruses (RVs), and eosinophils are associated with upper respiratory diseases. We evaluated the effects of fungal stimulation and eosinophil co-culture on the expression of mucin genes in RV-infected nasal polyp epithelial cells. METHODS Nasal polyp epithelial cells were obtained from chronic rhinosinusitis patients. Cultured epithelial cells were stimulated with Alternari...
Background: Staphylococcus aureus secretes numerous superantigenes which trigger the inflammatory mechanisms of sinus mucosa and cause chronic rhino-sinusitis. This study was designed to evaluate the role of staphylococcus aureus superantigens in polyp tissues of patients with chronic rhino-sinusitis in comparison with a control group.Methods: Polyp tissue samples of 28 patients and mucosal spe...
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