Standardization of preanalytical aspects of cerebrospinal fluid biomarker testing for Alzheimer's disease diagnosis: a consensus paper from the Alzheimer's Biomarkers Standardization Initiative.
Alzheimers Dement
; 8(1): 65-73, 2012 Jan.
Article
em En
| MEDLINE
| ID: mdl-22047631
ABSTRACT
BACKGROUND:
Numerous studies show that the cerebrospinal fluid biomarkers total tau (T-tau), tau phosphorylated at threonine 181 (P-tau(181P)), and amyloid-ß (1-42) (Aß(1-42)) have high diagnostic accuracy for Alzheimer's disease. Variability in concentrations for Aß(1-42), T-tau, and P-tau(181P) drives the need for standardization.METHODS:
Key issues were identified and discussed before the first meeting of the members of the Alzheimer's Biomarkers Standardization Initiative (ABSI). Subsequent ABSI consensus meetings focused on preanalytical issues.RESULTS:
Consensus was reached on preanalytical issues such as the effects of fasting, different tube types, centrifugation, time and temperature before storage, storage temperature, repeated freeze/thaw cycles, and length of storage on concentrations of Aß(1-42), T-tau, and P-tau(181P) in cerebrospinal fluid.CONCLUSIONS:
The consensus reached on preanalytical issues and the recommendations put forward during the ABSI consensus meetings are presented in this paper.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Biomarcadores
/
Guias como Assunto
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Consenso
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Doença de Alzheimer
Tipo de estudo:
Diagnostic_studies
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Guideline
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Prognostic_studies
Limite:
Humans
Idioma:
En
Ano de publicação:
2012
Tipo de documento:
Article