title: CRP and adiponectin and its oligomers in the metabolic syndrome: evaluation of new laboratory-based biomarkers.
abstract: The metabolic syndrome (MetS) confers an increased risk for diabetes and cardiovascular disease. Although high-sensitive C-reactive protein (hsCRP) concentrations are higher and adiponectin concentrations lower in MetS, there is no reliable biochemical measure that can capture its various features. We evaluated whether hsCRP, adiponectin, or the ratio of adiponectin or its oligomers, especially the high-molecular-weight (HMW) oligomer, to hsCRP predict MetS in 123 subjects with MetS compared with that in 91 healthy control subjects. MetS subjects had significantly higher hsCRP levels and lower total adiponectin and oligomer levels relative to control subjects (P < .0001). The HMW/total adiponectin and adiponectin/CRP ratios were significantly lower in MetS subjects than control subjects (P < .005). The odds ratio (OR) of MetS using the 75th percentile cutoff for CRP was 3.8 (95% confidence interval [CI], 2.1-6.8) and equivalent to low total adiponectin (OR, 2.5; 95% CI, 1.3-4.5), its oligomers, or the adiponectin/ hsCRP ratio (OR, 2.6; 95% CI, 1.5, 4.8). Thus, measurements of CRP, adiponectin, or its oligomers provide robust biomarkers for predicting MetS.
authors.affiliation: Laboratory for Atherosclerosis and Metabolic Research, University of California, Davis, Medical Center, Sacramento, CA 95817, USA.
authors.forename: Sridevi
authors.initials: S
authors.lastname: Devaraj
authors.forename: Michael M
authors.initials: MM
authors.lastname: Swarbrick
authors.forename: Uma
authors.initials: U
authors.lastname: Singh
authors.forename: Beverley
authors.initials: B
authors.lastname: Adams-Huet
authors.forename: Peter J
authors.initials: PJ
authors.lastname: Havel
authors.forename: Ishwarlal
authors.initials: I
authors.lastname: Jialal
mesh_terms: D052242:Adiponectin / Q000097:blood*; D015415:Biomarkers / Q000097:blood*; D002097:C-Reactive Protein / Q000032:analysis*; D004797:Enzyme-Linked Immunosorbent Assay; D005260:Female; D006801:Humans; D008297:Male; D024821:Metabolic Syndrome / Q000097:blood* / Q000175:diagnosis*; D008875:Middle Aged; D012372:ROC Curve; D012016:Reference Values; D012680:Sensitivity and Specificity
chemical_list: D052242:Adiponectin; D015415:Biomarkers; D002097:C-Reactive Protein