Nho, K.* ; Kueider-Paisley, A.* ; MahmoudianDehkordi, S.* ; Arnold, M. ; Risacher, S.L.* ; Louie, G.* ; Blach, C.* ; Baillie, R.A.* ; Han, X.* ; Kastenmüller, G. ; Jia, W.* ; Xie, G.* ; Ahmad, S.* ; Hankemeier, T.* ; van Duijn, C.M.* ; Trojanowski, J.Q.* ; Shaw, L.M.* ; Weiner, M.W.* ; Doraiswamy, P.M.* ; Saykin, A.J.* ; Kaddurah-Daouk, R.*
Altered bile acid profile in mild cognitive impairment and Alzheimer's disease: Relationship to neuroimaging and CSF biomarkers.
Alzheimers Dement. 15, 232-244 (2019)
Introduction: Bile acids (BAs) are the end products of cholesterol metabolism produced by human and gut microbiome co-metabolism. Recent evidence suggests gut microbiota influence pathological features of Alzheimer's disease (AD) including neuroinflammation and amyloid-beta deposition.Method: Serum levels of 20 primary and secondary BA metabolites from the AD Neuroimaging Initiative (n = 1562) were measured using targeted metabolomic profiling. We assessed the association of BAs with the "A/T/N" (amyloid, tau, and neurodegeneration) biomarkers for AD: cerebrospinal fluid (CSF) biomarkers, atrophy (magnetic resonance imaging), and brain glucose metabolism ([F-18]FDG PET).Results: Of 23 BAs and relevant calculated ratios after quality control procedures, three BA signatures were associated with CSFA beta(1-42) ("A") and three with CSF p-tau181 ("T") (corrected P < .05). Furthermore, three, twelve, and fourteen BA signatures were associated with CSF t-tau, glucose metabolism, and atrophy ("N"), respectively (corrected P < .05).Discussion: This is the first study to show serum-based BA metabolites are associated with "A/T/N" AD biomarkers, providing further support for a role of BA pathways in AD pathophysiology. Prospective clinical observations and validation in model systems are needed to assess causality and specific mechanisms underlying this association. (C) 2018 Published by Elsevier Inc. on behalf of the Alzheimer's Association.
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Publikationstyp
Artikel: Journalartikel
Dokumenttyp
Wissenschaftlicher Artikel
Typ der Hochschulschrift
Herausgeber
Schlagwörter
Metabolomics ; Bile Acid ; Alzheimer's Disease ; Amyloid-beta ; Csf Biomarkers ; Brain Glucose Metabolism ; Pet ; Mri ; Gut-liver-brain Axis; Isolated Rat Hepatocytes; Surface-based Analysis; Gut-brain Axis; Cerebrospinal-fluid; Cholesterol-metabolism; Ursodeoxycholic Acid; Oxidative Stress; Random-field; Vitamin-d; Fdg-pet
Keywords plus
Sprache
Veröffentlichungsjahr
2019
Prepublished im Jahr
2018
HGF-Berichtsjahr
2018
ISSN (print) / ISBN
1552-5260
e-ISSN
1552-5279
ISBN
Bandtitel
Konferenztitel
Konferzenzdatum
Konferenzort
Konferenzband
Quellenangaben
Band: 15,
Heft: 2,
Seiten: 232-244
Artikelnummer: ,
Supplement: ,
Reihe
Verlag
Elsevier
Verlagsort
New York, NY [u.a.]
Tag d. mündl. Prüfung
0000-00-00
Betreuer
Gutachter
Prüfer
Topic
Hochschule
Hochschulort
Fakultät
Veröffentlichungsdatum
0000-00-00
Anmeldedatum
0000-00-00
Anmelder/Inhaber
weitere Inhaber
Anmeldeland
Priorität
Begutachtungsstatus
Peer reviewed
POF Topic(s)
30505 - New Technologies for Biomedical Discoveries
Forschungsfeld(er)
Enabling and Novel Technologies
PSP-Element(e)
G-503700-001
Förderungen
Copyright
Erfassungsdatum
2018-10-25