title: Inflammatory cytokines gene expression in bone tissue from patients with chronic rhinosinusitis- a preliminary study.
abstract: BACKGROUND
  It is unclear whether mucosal inflammation has an effect on the bone under the mucosa in patients with chronic rhinosinusitis (CRS).
  
  
  OBJECTIVE
  The aim of this study was evaluation of inflammatory cytokines genes expression in bone tissue taken from the patients who had undergone endoscopic sinus surgery for CRS.
  
  
  METHODS
  A total group of a consecutive 49 patients with diagnosis of chronic rhinosinusitis based on EPOS 2007 criteria undergoing endoscopic sinus surgery for CRS were enrolled in the study. Based on histopathologic findings of the mucosal and bone tissues we evaluated the rate of inflammation. Expression of target genes: interleukin 1β (IL1β), interleukin 6 (IL6), interleukin 11 (IL11), tumor growth factor β (TGF β) and tumor necrosis factor α (TNF α) were analysed by real-time PCR method in samples of the ethmoid bone taken during endoscopic sinus surgery for CRS.
  
  
  RESULTS
  Based on histopathological findings in the studied population we found symptoms of osteitis in 5 patients. In the studied population we found significant differences between patients with osteitis and without osteitis with respect to IL6 gene expression in bone tissue (p=0.0003), IL11 gene expression (p=0.02) and TNFα gene expression in bone tissue (p=0.0035).
  
  
  CONCLUSIONS
  In our study we have demonstrated that in some patients with CRS and coexisting symptoms of osteitis some inflammatory markers genes expression are increased in this population.
authors: Department of Otolaryngology, Medical University of Warsaw, Poland.
authors: A
authors: A
authors: Tuszynska
authors: A
authors: A
authors: Krzeski
authors: M
authors: M
authors: Postuba
authors: L
authors: L
authors: Paczek
authors: A
authors: A
authors: Wyczalkowska-Tomasik
authors: B
authors: B
authors: Gornicka
authors: R
authors: R
authors: Pykalo
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002908:Chronic Disease; D004724:Endoscopy; D005004:Ethmoid Bone / Q000378:metabolism / Q000473:pathology; D005260:Female; D015870:Gene Expression; D005819:Genetic Markers; D006801:Humans; D017370:Interleukin-11 / Q000235:genetics*; D015850:Interleukin-6 / Q000235:genetics*; D008297:Male; D008875:Middle Aged; D009297:Nasal Mucosa / Q000378:metabolism / Q000473:pathology; D010000:Osteitis / Q000209:etiology / Q000235:genetics / Q000473:pathology; D012220:Rhinitis / Q000150:complications / Q000378:metabolism / Q000473:pathology / Q000503:physiopathology / Q000601:surgery; D012852:Sinusitis / Q000150:complications / Q000378:metabolism / Q000473:pathology / Q000503:physiopathology / Q000601:surgery; D014409:Tumor Necrosis Factor-alpha / Q000235:genetics*
chemical_list: D005819:Genetic Markers; D017370:Interleukin-11; D015850:Interleukin-6; D014409:Tumor Necrosis Factor-alpha