Fluid and PET biomarkers for amyloid pathology in Alzheimer's disease

Mol Cell Neurosci. 2019 Jun:97:3-17. doi: 10.1016/j.mcn.2018.12.004. Epub 2018 Dec 8.

Abstract

Alzheimer's disease (AD) is characterized by amyloid plaques and tau pathology (neurofibrillary tangles and neuropil threads). Amyloid plaques are primarily composed of aggregated and oligomeric β-amyloid (Aβ) peptides ending at position 42 (Aβ42). The development of fluid and PET biomarkers for Alzheimer's disease (AD), has allowed for detection of Aβ pathology in vivo and marks a major advancement in understanding the role of Aβ in Alzheimer's disease (AD). In the recent National Institute on Aging and Alzheimer's Association (NIA-AA) Research Framework, AD is defined by the underlying pathology as measured in patients during life by biomarkers (Jack et al., 2018), while clinical symptoms are used for staging of the disease. Therefore, sensitive, specific and robust biomarkers to identify brain amyloidosis are central in AD research. Here, we discuss fluid and PET biomarkers for Aβ and their application.

Publication types

  • Review

MeSH terms

  • Alzheimer Disease / cerebrospinal fluid
  • Alzheimer Disease / diagnostic imaging*
  • Alzheimer Disease / metabolism*
  • Amyloid beta-Peptides / cerebrospinal fluid
  • Amyloid beta-Peptides / metabolism*
  • Biomarkers / cerebrospinal fluid
  • Biomarkers / metabolism
  • Brain / diagnostic imaging*
  • Brain / metabolism*
  • Humans
  • Neurofibrillary Tangles / metabolism
  • Neurofibrillary Tangles / pathology
  • Peptide Fragments / cerebrospinal fluid
  • Peptide Fragments / metabolism*
  • Positron-Emission Tomography / methods*
  • tau Proteins / cerebrospinal fluid
  • tau Proteins / metabolism

Substances

  • Amyloid beta-Peptides
  • Biomarkers
  • Peptide Fragments
  • amyloid beta-protein (1-42)
  • tau Proteins