{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,22]],"date-time":"2026-10-22T22:21:37Z","timestamp":1792707697301,"version":"4.5.0"},"reference-count":38,"publisher":"Wiley","issue":"3","license":[{"start":{"date-parts":[[2010,5,1]],"date-time":"2010-05-01T00:00:00Z","timestamp":1272672000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"DOI":"10.13039\/100007333","name":"Alzheimer's Disease Neuroimaging Initiative","doi-asserted-by":"publisher","id":[{"id":"10.13039\/100007333","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100000002","name":"National Institutes of Health","doi-asserted-by":"publisher","award":["U01 AG024904"],"award-info":[{"award-number":["U01 AG024904"]}],"id":[{"id":"10.13039\/100000002","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100001068","name":"Dana Foundation","doi-asserted-by":"publisher","award":["AG10124"],"award-info":[{"award-number":["AG10124"]}],"id":[{"id":"10.13039\/100001068","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["alz-journals.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Alzheimer's &amp;amp; Dementia"],"published-print":{"date-parts":[[2010,5]]},"abstract":"<jats:sec><jats:label\/><jats:p>Here, we review progress by the Penn Biomarker Core in the Alzheimer's Disease Neuroimaging Initiative (ADNI) toward developing a pathological cerebrospinal fluid (CSF) and plasma biomarker signature for mild Alzheimer's disease (AD) as well as a biomarker profile that predicts conversion of mild cognitive impairment (MCI) and\/or normal control subjects to AD. The Penn Biomarker Core also collaborated with other ADNI Cores to integrate data across ADNI to temporally order changes in clinical measures, imaging data, and chemical biomarkers that serve as mileposts and predictors of the conversion of normal control to MCI as well as MCI to AD, and the progression of AD. Initial CSF studies by the ADNI Biomarker Core revealed a pathological CSF biomarker signature of AD defined by the combination of A\u03b21\u201042 and total tau (T\u2010tau) that effectively delineates mild AD in the large multisite prospective clinical investigation conducted in ADNI. This signature appears to predict conversion from MCI to AD. Data fusion efforts across ADNI Cores generated a model for the temporal ordering of AD biomarkers which suggests that A\u03b2 amyloid biomarkers become abnormal first, followed by changes in neurodegenerative biomarkers (CSF tau, F\u201018 fluorodeoxyglucose\u2010positron emission tomography, magnetic resonance imaging) with the onset of clinical symptoms. The timing of these changes varies in individual patients due to genetic and environmental factors that increase or decrease an individual's resilience in response to progressive accumulations of AD pathologies. Further studies in ADNI will refine this model and render the biomarkers studied in ADNI more applicable to routine diagnosis and to clinical trials of disease modifying therapies.<\/jats:p><\/jats:sec>","DOI":"10.1016\/j.jalz.2010.03.008","type":"journal-article","created":{"date-parts":[[2010,5,7]],"date-time":"2010-05-07T06:39:17Z","timestamp":1273214357000},"page":"230-238","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":236,"title":["Update on the biomarker core of the Alzheimer's Disease Neuroimaging Initiative subjects"],"prefix":"10.1002","volume":"6","author":[{"given":"John Q.","family":"Trojanowski","sequence":"first","affiliation":[{"name":"Department of Pathology &amp; Laboratory Medicine Institute on Aging Center for Neurodegenerative Disease Research University of Pennsylvania School of Medicine Philadelphia PA USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hugo","family":"Vandeerstichele","sequence":"additional","affiliation":[{"name":"Department of Diagnostic Development Innogenetics NV Gent Belgium"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Magdalena","family":"Korecka","sequence":"additional","affiliation":[{"name":"Department of Pathology &amp; 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