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Alzheimers Dement. 2015 Jul;11(7):815-22. doi: 10.1016/j.jalz.2015.05.010.

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

Author information

1
Knight Alzheimer Disease Research Center, Washington University School of Medicine, St. Louis, MO, USA; Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO, USA. Electronic address: efranklin@path.wustl.edu.
2
Knight Alzheimer Disease Research Center, Washington University School of Medicine, St. Louis, MO, USA; Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO, USA.
3
Knight Alzheimer Disease Research Center, Washington University School of Medicine, St. Louis, MO, USA; Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO, USA; Department of Neurology, Washington University School of Medicine, St. Louis, MO, USA.

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.

KEYWORDS:

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

PMID:
26194314
PMCID:
PMC4511380
DOI:
10.1016/j.jalz.2015.05.010
[Indexed for MEDLINE]
Free PMC Article

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