TY - JOUR
T1 - The diagnostic efficiency of biomarkers in sporadic Creutzfeldt-Jakob disease compared to Alzheimer's disease
AU - Bahl, J.M.
AU - Heegaard, N.H.
AU - Falkenhorst, G.
AU - Laursen, H.
AU - Hogenhaven, H.
AU - Molbak, K.
AU - Jespersgaard, C.
AU - Hougs, L.
AU - Waldemar, G.
AU - Johannsen, P.
AU - Christiansen, M.
PY - 2009
Y1 - 2009
N2 - Laboratory markers have a prominent place among the diagnostic criteria for sporadic Creutzfeldt-Jakob disease (sCJD). Here we investigate the capability of protein 14-3-3, total-tau (t-tau), threonin-181-phosphorylated tau (p-tau), and neuron-specific enolase (NSE) in cerebrospinal fluid (CSF) together with the prion protein gene genotype to discriminate patients with sCJD (n=21) from neurological controls (n=164) and Alzheimer's disease (AD) patients (n=49). Low p-tau/t-tau ratio was the best single marker for sCJD with 90% specificity against neurological controls at 86% sensitivity whilst NSE was the least accurate with 79% sensitivity at 90% specificity. Many of the sCJD patients had extremely elevated t-tau values but normal values of the AD-marker p-tau. Protein 14-3-3 was very sensitive (95%) although the specificity was relatively low (75%). A combination of elevated t-tau concentration with the presence of 14-3-3 protein in CSF gave the best test specificity of 96% at 84% sensitivity. We conclude that the combination of more than one CSF marker for neurodegeneration can improve the diagnostic test accuracy for sCJD against neurological controls including patients with other dementias
Udgivelsesdato: 2009/11
AB - Laboratory markers have a prominent place among the diagnostic criteria for sporadic Creutzfeldt-Jakob disease (sCJD). Here we investigate the capability of protein 14-3-3, total-tau (t-tau), threonin-181-phosphorylated tau (p-tau), and neuron-specific enolase (NSE) in cerebrospinal fluid (CSF) together with the prion protein gene genotype to discriminate patients with sCJD (n=21) from neurological controls (n=164) and Alzheimer's disease (AD) patients (n=49). Low p-tau/t-tau ratio was the best single marker for sCJD with 90% specificity against neurological controls at 86% sensitivity whilst NSE was the least accurate with 79% sensitivity at 90% specificity. Many of the sCJD patients had extremely elevated t-tau values but normal values of the AD-marker p-tau. Protein 14-3-3 was very sensitive (95%) although the specificity was relatively low (75%). A combination of elevated t-tau concentration with the presence of 14-3-3 protein in CSF gave the best test specificity of 96% at 84% sensitivity. We conclude that the combination of more than one CSF marker for neurodegeneration can improve the diagnostic test accuracy for sCJD against neurological controls including patients with other dementias
Udgivelsesdato: 2009/11
U2 - http://dx.doi.org/10.1016/j.neurobiolaging.2008.01.013
DO - http://dx.doi.org/10.1016/j.neurobiolaging.2008.01.013
M3 - Journal article
SN - 0197-4580
VL - 30
SP - 1834
EP - 1841
JO - Neurobiology of Aging
JF - Neurobiology of Aging
IS - 11
ER -