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Journal Article
Research Support, Non-U.S. Gov't
Evaluation of cerebrospinal fluid tau/beta-amyloid(42) ratio as diagnostic markers for Alzheimer disease.
European Neurology 2009
BACKGROUND: Alzheimer's disease (AD) is the leading cause of dementia. Currently, no definitive diagnostic test for AD exists. Cerebrospinal fluid (CSF) concentrations of amyloid beta (Abeta1-42) peptides and total tau proteins (T-tau) may serve as biomarkers for AD.
AIM: The objective of this study was to investigate the usefulness of CSF Abeta1-42 and T-tau analyses in the diagnosis of AD with Tunisians.
METHODS: We focused on three groups originating from Central Tunisian that matched in age (range 48-85): healthy controls (n = 53), AD patients (n = 93) and non-Alzheimer (nAD) dementia (n = 35) patients. Abeta1-42 and T-tau levels were measured in CSF by sandwich enzyme-linked immunosorbent assay.
RESULTS: The ratio of T-tau/Abeta1-42 at baseline yielded a sensitivity of 85.3% for detection of AD and the specificity was 84.8% to differentiate controls and nAD dementia.
CONCLUSION: Our findings confirm the use of T-tau/Abeta1-42 ratio in the discrimination of AD patients from all other patients.
AIM: The objective of this study was to investigate the usefulness of CSF Abeta1-42 and T-tau analyses in the diagnosis of AD with Tunisians.
METHODS: We focused on three groups originating from Central Tunisian that matched in age (range 48-85): healthy controls (n = 53), AD patients (n = 93) and non-Alzheimer (nAD) dementia (n = 35) patients. Abeta1-42 and T-tau levels were measured in CSF by sandwich enzyme-linked immunosorbent assay.
RESULTS: The ratio of T-tau/Abeta1-42 at baseline yielded a sensitivity of 85.3% for detection of AD and the specificity was 84.8% to differentiate controls and nAD dementia.
CONCLUSION: Our findings confirm the use of T-tau/Abeta1-42 ratio in the discrimination of AD patients from all other patients.
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