title: Serum inflammatory protein profiles in patients with chronic rhinosinusitis undergoing sinus surgery: a preliminary analysis.
abstract: BACKGROUND
  The specific aim of this study was to evaluate surface-enhanced laser desorption/ionization time-of-flight mass spectroscopy (SELDI-TOF-MS) as a clinical screening tool in differentiating patients with chronic rhinosinusitis (CRS) from healthy control patients.
  
  
  METHODS
  Serum samples were prospectively collected at a tertiary care academic medical center from 96 CRS patients who underwent functional endoscopic sinus surgery (FESS) and 38 control volunteers who were negatively screened according to the Rhinosinusitis Task Force guidelines on CRS. SELDI-TOF-MS was performed on serum samples to detect protein profiles in the range of 1-100 kDa. Analysis of spectral data was performed to determine the sensitivity and specificity of SELDI-TOF-MS in distinguishing patients with CRS requiring FESS from healthy controls and to determine potential markers for protein purification.
  
  
  RESULTS
  Serum protein profiles generated from SELDI-TOF-MS in the range of 1-100 kDa were analyzed. Classification and regression tree analysis based on peak expression correctly classified patients with CRS with 77.1% sensitivity and 65.8% specificity, a positive predictive value of 88%, and a negative predictive value of 53%. Underexpression of a protein peak at 8.4 kDa was associated with CRS in 77% of cases.
  
  
  CONCLUSIONS
  SELDI-TOF-MS serum protein profile analysis is able to distinguish CRS patients requiring FESS from healthy, negatively screened controls with a sensitivity of 77.1% and specificity of 65.8%. Additional investigation is required to determine if SELDI-TOF-MS will make an effective clinical tool.
authors.affiliation: Department of Otolaryngology-Head and Neck Surgery, Medical College of Georgia, Augusta, Georgia 30912-4060, USA.
authors.forename: Adam M
authors.initials: AM
authors.lastname: Becker
authors.forename: Subinoy
authors.initials: S
authors.lastname: Das
authors.forename: Zhongsheng
authors.initials: Z
authors.lastname: Xia
authors.forename: Zhongmin
authors.initials: Z
authors.lastname: Liu
authors.forename: Bao-Ling
authors.initials: BL
authors.lastname: Adam
authors.forename: Stilianos E
authors.initials: SE
authors.lastname: Kountakis
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D015415:Biomarkers / Q000097:blood; D001798:Blood Proteins / Q000032:analysis* / Q000276:immunology; D016022:Case-Control Studies; D002908:Chronic Disease; D005260:Female; D006801:Humans; D008297:Male; D008403:Mass Screening; D008875:Middle Aged; D011237:Predictive Value of Tests; D011446:Prospective Studies; D012220:Rhinitis / Q000097:blood* / Q000276:immunology; D012680:Sensitivity and Specificity; D012852:Sinusitis / Q000097:blood* / Q000276:immunology / Q000601:surgery*; D019032:Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization
chemical_list: D015415:Biomarkers; D001798:Blood Proteins