Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
2008-4-28
pubmed:abstractText
In this report we evaluated the clinical performance of APOE genotyping and three protein biomarkers (total tau, beta-amyloid(1-42), and tau phosphorylated at threonine 181) in a prospective multicenter study using the INNO-BIA AlzBio3 assay applied on Luminex platform. Concentration of biomarkers of Alzheimer's disease in cerebrospinal fluid (CSF) was measured with multiplexing technology (n=223), and compared to the results of ELISA assays in patients with early dementias or mild cognitive impairment (MCI) collected at 12 gerontopsychiatric university departments, and APOE genotyping was performed. Concentrations of Abeta(1-42) were statistically significantly lower in MCI-AD subjects compared to MCI-O, and significantly lower in D-AD patients compared to MCI-O. P-tau(181P) concentrations were significantly higher in MCI-AD patients compared to MCI-O, and significantly higher in D-AD patients compared to MCI-O. The total tau concentrations in MCI-AD patients were significantly higher compared to MCI-O, and higher in D-AD compared to MCI-O, moreover, the concentration of total tau was significantly higher in D-AD compared to MCI-AD patients. For the differential diagnosis between D-AD and D-O, the optimal cutoff concentration of Abeta(1-42) was 197.7 pg/mL, and that for P-tau(181P) was 47.9 pg/mL. These cutoff values were also applied to discriminate between MCI-AD and MCI-O subjects. Simultaneous measurement of the biomarkers significantly improves management of the samples and quality control of the assays' performance.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
1558-1497
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
29
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
812-8
pubmed:dateRevised
2010-11-18
pubmed:meshHeading
pubmed-meshheading:17239996-Aged, pubmed-meshheading:17239996-Algorithms, pubmed-meshheading:17239996-Alzheimer Disease, pubmed-meshheading:17239996-Amyloid beta-Peptides, pubmed-meshheading:17239996-Biological Markers, pubmed-meshheading:17239996-Cognition Disorders, pubmed-meshheading:17239996-Comorbidity, pubmed-meshheading:17239996-Dementia, pubmed-meshheading:17239996-Female, pubmed-meshheading:17239996-Germany, pubmed-meshheading:17239996-Humans, pubmed-meshheading:17239996-Male, pubmed-meshheading:17239996-Middle Aged, pubmed-meshheading:17239996-Peptide Fragments, pubmed-meshheading:17239996-Reproducibility of Results, pubmed-meshheading:17239996-Risk Assessment, pubmed-meshheading:17239996-Risk Factors, pubmed-meshheading:17239996-Sensitivity and Specificity, pubmed-meshheading:17239996-tau Proteins
pubmed:year
2008
pubmed:articleTitle
Multiplexed quantification of dementia biomarkers in the CSF of patients with early dementias and MCI: a multicenter study.
pubmed:affiliation
Department of Psychiatry and Psychotherapy, University of Erlangen-Nuremberg, Erlangen, Germany.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, Non-U.S. Gov't, Multicenter Study