ArticleActa neuropathologica2025
Isomerized Aβ in the brain can distinguish the status of amyloidosis in the Alzheimer's disease spectrum.
Article in Acta neuropathologica, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Distribution of Big Tau Isoforms in the Human Central and Peripheral Nervous System.Annals of neurology · 2026Article
- Spatiotemporal characterization of Alzheimer disease pathology in living human brain tissue.Nature communications · 2026Article
- Post-Translational Modifications Distinguish Amyloid-β Isoforms in Cerebral Amyloid Angiopathy and Alzheimer's Disease.Journal of neurochemistry · 2025Article
- Distribution of big tau isoforms in the human central and peripheral nervous system.bioRxiv : the preprint server for biology · 2025Article
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7 authors.
Funding
Abstract
Extracellular amyloid plaques, the pathognomonic hallmark of Alzheimer's disease (AD), are also observed in cognitively unimpaired subjects in the preclinical stages. Progressive accumulation of fibrillar amyloid-β (Aβ) as plaques and perivascular deposits occur two decades before clinical onset, making Aβ a long-lived peptide. To characterize the amyloid plaques biochemically, both the Aβ-load as well the post-translational modifications (PTMs) could serve as markers for distinguishing the pre-clinical stage compared to later prodromal and clinical stages of AD. Recently, we described the presence of extensive isomerization of the Aβ N-terminus in AD post-mortem brains that is significantly increased compared to the age-matched non-AD control brains with Aβ aggregates. In this report, we performed Lys-N enzymatic digestion followed by mass spectrometry-based quantitative analysis of the most common PTMs associated with plaque Aβ. We focused on pyroglutamation (pGlu3), citrullination (cit5), N-terminal truncation (Aβ
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