the relationship between different assays for detection and quantification of amyloid beta 42 in human cerebrospinal fluid

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ID: 251207
2012
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Abstract
Alzheimer's disease (AD), which is characterized by a degeneration of neurons and their synapses, is one of the most common forms of dementia. CSF levels of amyloid 𝛽42 (A𝛽42) have been recognized as a strong candidate to serve as an AD biomarker. There are a number of commercial assays that are routinely employed for measuring A𝛽42; however, these assays give diverse ranges for the absolute levels of CSF A𝛽42. In order to employ CSF A𝛽42 as a biomarker across multiple laboratories, studies need to be performed to understand the relationship between the different platforms. We have analyzed CSF samples from both diseased and nondiseased subjects with two different widely used assay platforms. The results showed that different values for the levels of CSF A𝛽42 were reported, depending on the assay used. Nonetheless, both assays clearly demonstrated statistically significant differences in the levels of A𝛽42 in CSF from AD relative to age-matched controls (AMC). This paper provides essential data for establishing the relationship between these assays and provides an important step towards the validation of A𝛽42 as a biomarker for AD.
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ellis2012internationalthe Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Teresa A. Ellis;Jinhe Li;David LeBlond;Jeffrey F. Waring
Journal advanced biomedical research
Year 2012
DOI
10.1155/2012/984746
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