PT - JOURNAL ARTICLE AU - Fratini, Federica AU - Principe, Serena AU - Puopolo, Maria AU - Ladogana, Anna AU - Poleggi, Anna AU - Piscopo, Paola AU - Bruno, Giuseppe AU - Castrechini, Silvano AU - Pascone, Roberto AU - Confaloni, Annamaria AU - Minghetti, Luisa AU - Cardone, Franco AU - Pocchiari, Maurizio AU - Crescenzi, Marco TI - Increased levels of acute-phase inflammatory proteins in plasma of patients with sporadic CJD AID - 10.1212/WNL.0b013e318265a55d DP - 2012 Sep 04 TA - Neurology PG - 1012--1018 VI - 79 IP - 10 4099 - http://n.neurology.org/content/79/10/1012.short 4100 - http://n.neurology.org/content/79/10/1012.full SO - Neurology2012 Sep 04; 79 AB - Objective: Screening plasma samples from patients with sporadic Creutzfeldt-Jakob disease (CJD) to discover diagnostic biomarkers. Methods: Plasma samples were collected from 17 patients with sporadic CJD, 17 patients with Alzheimer disease (AD), and 20 healthy subjects. A 2-phase screening was carried out using quantitative protein mass spectrometry. The putative sporadic CJD biomarkers were then validated independently by immunoturbidimetry. Results: Mass spectrometry uncovered 7 candidate sporadic CJD protein biomarkers, all belonging to the acute-phase response. Highly significant increases of these markers in patients with sporadic CJD, compared with healthy subjects and patients with AD, was confirmed by immunoturbidimetry. Conclusions: The increase in plasma levels of a related set of acute-phase reactants in patients with sporadic CJD is a novel finding that suggests new pathogenetic hypotheses. The possible value of this set of proteins as biomarkers in the diagnosis of sporadic CJD or for blood/tissue donor screening remains to be further explored and validated in larger studies. AAT=α1-antitrypsin; AD=Alzheimer disease; AGP=α1-acid glycoprotein; AUC=area under the receiver operating characteristic curve; brAD=bedridden subjects with Alzheimer disease; CI=confidence interval; CJD=Creutzfeldt-Jakob disease; DSM-IV=Diagnostic and Statistical Manual of Mental Disorders, 4th edition; FG=fibrinogen; IL=interleukin; nonbrAD=non-bedridden subjects with Alzheimer disease; ROC=receiver operating characteristic; TSE=transmissible spongiform encephalopathy