NEUROPATHOLOGY CORE

$264,183P50FY2013AGNIH

University Of Southern California, Los Angeles CA

Investigators

Linked publications & trials

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Abstract

The Pathology Core provides tissue diagnoses of Alzheimer's disease (AD), cerebrovascular disease (CVD) and related dementias and links the clinical studies with basic and translational research by project-driven, tissue procurement and allocation. During the current funding period, the Core served a total of funded 53 projects yielding 44 publications in peer review journals. In AIM 1, the diagnostic protocol integrates the NIA-Reagan Institute Workshop Group protocol, components of the CERAD program, Braak and Braak parameters and the Aging Brain Program Project protocol, and global indicators of dementia. AIM 2: In the renewal, there are proposed projects of 19 investigators located at 9 academic centers. Relationship of aging, sex hormones, the retina and cerebral vasculature to dementia are areas of emphasis. Postmortem tissues are obtained from patients enrolled in the USC Clinical Core Brain Research Study and are all clinically defined by the UDS database. A twenty-four hour autopsy service minimizes postmortem delay insuring high-fidelity preparations for biochemistry and molecular biology, including mRNA expression profiling, and viable tissue for endothelial cell cultures. Following the ADC Biospecimen Best Practice Guidelines, tissue preparations are tailored to special protocols with reliable neuroanatomical dissections performed at autopsy. Postmortem tissues will be available for synaptoneurosome preparations to evaluate molecular pathology and plasticity changes of the synapse for four projects. AIM 3: Neuropathology summary reports are entered with the National Alzheimer's Coordinating Center (NACC). AIM 4: The Core will coordinate genotyping for risk factors, such as ApoE, from postmortem tissues and clinical blood samples. AIM 5: Training in the neuropathology of AD is extended to neuropathology fellows, neurology and pathology residents, and graduate students in neuroscience and pathobiology programs, both diagnostically and translational, emphasizing the neurobiology of dementia.

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