Fig. 5From: Alzheimer’s disease biomarkers in cerebrospinal fluid are stable with the Elecsys immunoassay to most pre-analytical influencing factors except freezing at -80 °CSignificant decrease of Alzheimer’s disease cerebrospinal fluid (CSF) biomarker concentrations due to freezing at -80 °C in glass vials for 14 daysCSF = 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 quotientBack to article page