Brain collection, standardized neuropathologic assessment, and comorbidity in Alzheimer's Disease Neuroimaging Initiative 2 participants

Erin E. Franklin, Richard J. Perrin, Benjamin Vincent, Michael Baxter, John C. Morris, Nigel J. Cairns

Research output: Contribution to journalReview article

15 Scopus citations

Abstract

Introduction The Alzheimer's Disease Neuroimaging Initiative Neuropathology Core (ADNI-NPC) facilitates brain donation, ensures standardized neuropathologic assessments, and maintains a tissue resource for research. Methods The ADNI-NPC coordinates with performance sites to promote autopsy consent, facilitate tissue collection and autopsy administration, and arrange sample delivery to the NPC, for assessment using National Institute on Aging-Alzheimer's Association neuropathologic diagnostic criteria. Results The ADNI-NPC has obtained 45 participant specimens, and neuropathologic assessments have been completed in 36 to date. Challenges in obtaining consent at some sites have limited the voluntary autopsy rate to 58%. Among assessed cases, clinical diagnostic accuracy for Alzheimer disease (AD) is 97%; however, 58% of cases show neuropathologic comorbidities. Discussion Challenges facing autopsy consent and coordination are largely resource related. The neuropathologic assessments indicate that ADNI's clinical diagnostic accuracy for AD is high; however, many AD cases have comorbidities that may impact the clinical presentation, course, and imaging and biomarker results. These neuropathologic data permit multimodal and genetic studies of these comorbidities to improve diagnosis and provide etiologic insights.

Original languageEnglish
Pages (from-to)815-822
Number of pages8
JournalAlzheimer's and Dementia
Volume11
Issue number7
DOIs
StatePublished - Jul 1 2015

Keywords

  • Alzheimer's Disease Neuroimaging Initiative
  • Autopsy consent
  • Comorbidity
  • Lewy body
  • Neuropathology
  • Pathology heat map

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