نتایج جستجو برای: nasal polyposis
تعداد نتایج: 54184 فیلتر نتایج به سال:
OBJECTIVES This study aims to investigate the neutrophil-to-lymphocyte ratio (NLR) and eosinophil-to-lymphocyte ratio (ELR) levels in recurrent and non-recurrent nasal polyposis, and identify how the NLR and ELR reflect the inflammatory status in this specific diagnosis preoperatively. PATIENTS AND METHODS A total of 158 patients (102 males, 56 females; mean age 29.40±5.44 years; range 14 to ...
BACKGROUND Staphylococcus aureus secretes numerous exotoxins which may exhibit superantigenic properties. Whereas the virulence of several of them is well documented, their exact biological effects are not fully understood. Exotoxins may influence the immune and inflammatory state of various organs, including the sinonasal mucosa: their possible involvement in chronic rhinosinusitis has been su...
BACKGROUND Nitric Oxide (NO) has been proposed as an important signaling molecule. NO produced by the inducible NO synthase enzyme NOS2A is generated at high levels in certain types of inflammation. A pentanucleotide polypyrimidine microsatellite CCTTT has been identified in the promoter region of the NOS2A gene. OBJECTIVE The aim of this study was to analyze the (CCTTT)n polymorphism in pati...
INTRODUCTION Sinonasal polyposis (NP) is a chronic inflammatory pathology of the nasal/paranasal cavities which affects from 1%-4% of the population. Although polyps seem to be a manifestation of chronic inflammation in both allergic and non-allergic subjects, the pathogenesis of nasal polyposis remains unknown. HLA-G molecules are a kind of no classic class I antigen with anti-inflammatory and...
OBJECTIVE To determine the role of environmental pollutants in the etiology of nasal polyposis. DESIGN Case-control study. SETTING A community-based hospital practice in the Gaspesian peninsula in rural northeastern Quebec. PATIENTS Fifty-five case patients with nasal polyposis and 55 age-matched control subjects without nasal polyposis who were seen at one physician's practice (J.K.) fro...
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