title: [Evaluation of galactomannan antigen and beta-D-glucan value for diagnosis of chronic necrotizing pulmomary aspergillosis].
abstract: In order to establish the reliable cut-off value of galactomannan (GM) antigen as well as that for beta-D-glucan for CNPA diagnosis, we conducted the following study. From 2001 to 2008, in a total of 1511 patients we measured GM and anti-aspergillus antibody simultaneously. These patients had chronic pulmonary disease including old tuberculosis, nontuberculous mycobacteriosis, COPD, and had bullous lung, interstitial lung disease or were suspected to have suspected to have interstitial lung disease. We designated cases as probable CNPA when the sample represented a positive anti-aspergillus antibody. We then analyzed the sensitivity and specificity according to various GM antigen values. When using the GM antigen cut-off value at 0.5, the sensitivity and specificity for CNPA were 63.4% and 68.6% respectively. Using 1.0 for cut-off value resulted in the better specificity for CNPA diagnosis. Similar analysis was performed on beta-D-glucan for CNPA diagnosis. When using D-glucan cut-off value as 20 pg/ml, the sensitivity and specificity for CNPA. These results indicate that the cut-off value of serological examination for infectious disease should be considered by the type of disease.
authors.affiliation: Department of Respiratory Medicine, National Dohoku Hospital National Hospital Organization.
authors.forename: Satoru
authors.initials: S
authors.lastname: Fujiuchi
authors.forename: Yasushi
authors.initials: Y
authors.lastname: Yamamoto
authors.forename: Akinori
authors.initials: A
authors.lastname: Takeda
authors.forename: Yutaka
authors.initials: Y
authors.lastname: Nishigaki
authors.forename: Yuka
authors.initials: Y
authors.lastname: Fujit
authors.forename: Yasuhiro
authors.initials: Y
authors.lastname: Yamazaki
authors.forename: Toshiaki
authors.initials: T
authors.lastname: Fujikane
authors.forename: Shinobu
authors.initials: S
authors.lastname: Osanai
authors.forename: Yoshinobu
authors.initials: Y
authors.lastname: Ohsaki
mesh_terms: D000942:Antigens, Bacterial / Q000032:analysis*; D002908:Chronic Disease; D005690:Galactose / Q000031:analogs & derivatives; D006801:Humans; D008351:Mannans / Q000276:immunology*; D009336:Necrosis; D011509:Proteoglycans; D055732:Pulmonary Aspergillosis / Q000175:diagnosis*; D012680:Sensitivity and Specificity; D047071:beta-Glucans / Q000032:analysis*
chemical_list: D000942:Antigens, Bacterial; D008351:Mannans; D011509:Proteoglycans; D047071:beta-Glucans; C012990:galactomannan; C010770:polysaccharide-K; D005690:Galactose