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Fig. 4 | Neurological Research and Practice

Fig. 4

From: Alzheimer’s disease biomarkers in cerebrospinal fluid are stable with the Elecsys immunoassay to most pre-analytical influencing factors except freezing at -80 °C

Fig. 4

Significant decrease of Alzheimer’s disease cerebrospinal fluid (CSF) biomarker concentrations due to freezing at -80 °C in Sarstedt false-bottom tubes for 14 days

CSF = cerebrospinal fluid, A): Aß42 = Amyloid beta 1–42, B): P-tau = Phospho-Tau (181P), C): T-tau = Total-Tau, D): P-tau/Aß42 concentrations quotient, E): T-tau/Aß42 concentrations quotient

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Neurological Research and Practice

ISSN: 2524-3489

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