title: Analytical evaluation of a high-molecular-weight (HMW) adiponectin chemiluminescent enzyme immunoassay.
abstract: BACKGROUND
  The measurement of high-molecular-weight (HMW) adiponectin concentration provides valuable clinical information. However, the conventional ELISA method requires complicated and lengthy assay procedures to obtain assay results.
  
  
  METHODS
  We prepared new assay reagents based on chemiluminescent enzyme immunoassay (CLEIA) on a fully-automated analyzer system using the same IH7 monoclonal antibody as for ELISA as solid phase and detection antibodies (CLEIA/cartridge-type and CLEIA/bottle-type).
  
  
  RESULTS
  The assay range of both CLEIA reagents were from 0.20 to 15.00 μg/ml, and lower limit of detection and quantification were lower than 0.0928 and 0.1346 μg/ml in CLEIA/cartridge-type and in CLEIA/bottle-type reagents, respectively. A good correlation was observed between both reagents (y = 1.000x + 0.120). The imprecision test as % of coefficient variation in both reagents were less than 3.3% and recovery test showed the range from 100% to 109%. No or little interference of blood components was observed in both reagents. HMW adiponectin concentration measured by CLEIA reagents was approximately half that measured by the previous ELISA because of reevaluation using freshly and highly purified HMW adiponectin standard.
  
  
  CONCLUSIONS
  The newly prepared CLEIA reagents are robust and adequate and can be used for the measurement of HMW adiponectin in the clinical laboratory.
authors.affiliation: Research and Development Division, Fujirebio Inc., 2-62-5 Nihonbashi-Hamacho, Chuo-ku, Tokyo 103-0007, Japan.
authors.forename: Suguru
authors.initials: S
authors.lastname: Hayama
authors.forename: Tomoko
authors.initials: T
authors.lastname: Higuchi
authors.forename: Hideo
authors.initials: H
authors.lastname: Miyakoshi
authors.forename: Yasuko
authors.initials: Y
authors.lastname: Nakano
mesh_terms: D052242:Adiponectin / Q000032:analysis* / Q000097:blood / Q000737:chemistry* / Q000276:immunology; D016477:Artifacts; D002138:Calibration; D004797:Enzyme-Linked Immunosorbent Assay; D006801:Humans; D007124:Immunoenzyme Techniques / Q000379:methods*; D007202:Indicators and Reagents / Q000737:chemistry; D057230:Limit of Detection; D016014:Linear Models; D008163:Luminescent Measurements / Q000379:methods*; D008970:Molecular Weight
chemical_list: D052242:Adiponectin; D007202:Indicators and Reagents