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The small HDL particle hypothesis of Alzheimer's disease

Ashley E. Martinez, Gali Weissberger, Zsuzsanna Kuklenyik, Xulei He, Cristiana Meuret, Trusha Parekh, Jon C. Rees, Bryan A. Parks, Michael S. Gardner, Sarah M. King, Timothy S. Collier, Michael G. Harrington, Melanie D. Sweeney, Xinhui Wang, Berislav V. Zlokovic, Elizabeth Joe, Daniel A. Nation, Lon S. Schneider, Helena C. Chui, John R. BarrS. Duke Han, Ronald M. Krauss, Hussein N. Yassine

Research output: Contribution to journalArticlepeer-review

Abstract

We propose the hypothesis that small high-density lipoprotein (HDL) particles reduce the risk of Alzheimer's disease (AD) by virtue of their capacity to exchange lipids, affecting neuronal membrane composition and vascular and synaptic functions. Concentrations of small HDLs in cerebrospinal fluid (CSF) and plasma were measured in 180 individuals ≥60 years of age using ion mobility methodology. Small HDL concentrations in CSF were positively associated with performance in three domains of cognitive function independent of apolipoprotein E (APOE) ε4 status, age, sex, and years of education. Moreover, there was a significant correlation between levels of small HDLs in CSF and plasma. Further studies will be aimed at determining whether specific components of small HDL exchange across the blood, brain, and CSF barriers, and developing approaches to exploit small HDLs for therapeutic purposes.

Original languageEnglish
Pages (from-to)391-404
Number of pages14
JournalAlzheimer's and Dementia
Volume19
Issue number2
Early online date13 Apr 2022
DOIs
StatePublished - Feb 2023

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 3 - Good Health and Well-being
    SDG 3 Good Health and Well-being

Keywords

  • APOE
  • HDL
  • cerebrospinal fluid
  • cognition
  • lipidomics
  • proteomics

All Science Journal Classification (ASJC) codes

  • Epidemiology
  • Health Policy
  • Developmental Neuroscience
  • Clinical Neurology
  • Geriatrics and Gerontology
  • Cellular and Molecular Neuroscience
  • Psychiatry and Mental health

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