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Fig. 2 | Alzheimer's Research & Therapy

Fig. 2

From: Preanalytical approaches to improve recovery of amyloid-β peptides from CSF as measured by immunological or mass spectrometry-based assays

Fig. 2

Tween-20 increased the recovery of cerebrospinal fluid (CSF) amyloid-β 1–42 (Aβ1–42) from low-retention polypropylene tubes as measured by the AlzBio3 assay. a1–42 recovery from 0.5-ml of CSF after Tween-20 pretreatment. b1–42 was not detected in artificial CSF + 0.2% Tween-20 tube wash. c1–42 recovery from 0.5-ml of CSF without Tween-20 pretreatment. d1–42 recovery from artificial CSF + 0.2% Tween-20 tube wash. Representative result, n = 1 patient with AD. White bars = untreated CSF, gray bars = CSF pretreated with 0.2% Tween-20, gray bars with dots = wash + 0.2% Tween-20. *Below limit of quantitation

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