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Presymptomatic Dutch-Type hereditary cerebral amyloid Angiopathy-Related blood metabolite alterations
Journal article   Peer reviewed

Presymptomatic Dutch-Type hereditary cerebral amyloid Angiopathy-Related blood metabolite alterations

P. Chatterjee, A.M. Fagan, C. Xiong, M. McKay, A. Bhatnagar, Y. Wu, A.K. Singh, K. Taddei, I. Martins, S.L. Gardener, …
Journal of Alzheimer's disease : JAD, Vol.79(2), pp.895-903
2021
DOI: https://doi.org/10.3233/JAD-201267
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Abstract

Background:Cerebral amyloid angiopathy (CAA) is one of the major causes of intracerebral hemorrhage and vascular dementia in older adults. Early diagnosis will provide clinicians with an opportunity to intervene early with suitable strategies, highlighting the importance of pre-symptomatic CAA biomarkers. Objective:Investigation of pre-symptomatic CAA related blood metabolite alterations in Dutch-type hereditary CAA mutation carriers (D-CAA MCs). Methods:Plasma metabolites were measured using mass-spectrometry (AbsoluteIDQ® p400 HR kit) and were compared between pre-symptomatic D-CAA MCs (n = 9) and non-carriers (D-CAA NCs, n = 8) from the same pedigree. Metabolites that survived correction for multiple comparisons were further compared between D-CAA MCs and additional control groups (cognitively unimpaired adults). Results:275 metabolites were measured in the plasma, 22 of which were observed to be significantly lower in theD-CAAMCs compared to D-CAA NCs, following adjustment for potential confounding factors age, sex, and APOE ε4 (p < 0.05). After adjusting for multiple comparisons, only spermidine remained significantly lower in theD-CAAMCscompared to theD-CAA NCs (p < 0.00018). Plasma spermidine was also significantly lower in D-CAA MCs compared to the cognitively unimpaired young adult and older adult groups (p < 0.01). Spermidinewas also observed to correlate with CSF Aβ40 (rs = 0.621, p = 0.024), CSF Aβ42 (rs = 0.714, p = 0.006), and brain Aβ load (rs = –0.527, p = 0.030). Conclusion:The current study provides pilot data on D-CAA linked metabolite signals, that also associated with Aβ neuropathology and are involved in several biological pathways that have previously been linked to neurodegeneration and dementia.

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Collaboration types
Domestic collaboration
International collaboration
Citation topics
1 Clinical & Life Sciences
1.52 Neurodegenerative Diseases
1.52.60 Dementia
Web Of Science research areas
Neurosciences
ESI research areas
Neuroscience & Behavior
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