The objective of this project is to determine if a combination of MRI and MRS can be used to separate participants with mild DAT from normal elderly controls by looking for focal neuronal loss, especially in the hippocampus. MRI will be used to examine brain focal atrophic changes in the hippocampus, and the MRS will be used to detect biochemical evidence of neuronal loss in the hippocampal region, as well as for more generalized loss in the frontal and parietal lobes. Hippocampal volume loss and shape deformation will be used to look for subtle regional changes in the contours of the hippocampus. Hippocampal body deformations will be related to changes in its internal architecture. As part of the internal analysis, the investigators will measure the gray matter in CA1 of the cornu ammons. MRS will be used to examine the frontal, parietal, and temporal lobes for regional neuronal loss by calculating N-acetylaspartate/creatine ratios. They also plan to conduct a longitudinal study to evaluate the evolution of both the morphometric and biochemical changes that occur during the course of this study. MRI and MRS hippocampal measurements will be compared to neuron and senile plaque counts performed by the Neuropathology Core in patients who are autopsied during the course of this study. This comparison will be extended to regions in the frontal and parietal lobes where the neuropathology core also obtains samples study.

Agency
National Institute of Health (NIH)
Institute
National Institute on Aging (NIA)
Type
Research Program Projects (P01)
Project #
5P01AG003991-19
Application #
6563259
Study Section
Special Emphasis Panel (ZAG1)
Project Start
2002-01-01
Project End
2002-12-31
Budget Start
1998-10-01
Budget End
1999-09-30
Support Year
19
Fiscal Year
2002
Total Cost
$178,517
Indirect Cost
Name
Washington University
Department
Type
DUNS #
062761671
City
Saint Louis
State
MO
Country
United States
Zip Code
63130
Day, Gregory S; Gordon, Brian A; Perrin, Richard J et al. (2018) In vivo [18F]-AV-1451 tau-PET imaging in sporadic Creutzfeldt-Jakob disease. Neurology 90:e896-e906
Sato, Chihiro; Barthélemy, Nicolas R; Mawuenyega, Kwasi G et al. (2018) Tau Kinetics in Neurons and the Human Central Nervous System. Neuron 97:1284-1298.e7
Lewczuk, Piotr; Riederer, Peter; O'Bryant, Sid E et al. (2018) Cerebrospinal fluid and blood biomarkers for neurodegenerative dementias: An update of the Consensus of the Task Force on Biological Markers in Psychiatry of the World Federation of Societies of Biological Psychiatry. World J Biol Psychiatry 19:244-328
Vardarajan, Badri N; Barral, Sandra; Jaworski, James et al. (2018) Whole genome sequencing of Caribbean Hispanic families with late-onset Alzheimer's disease. Ann Clin Transl Neurol 5:406-417
Joseph-Mathurin, Nelly; Su, Yi; Blazey, Tyler M et al. (2018) Utility of perfusion PET measures to assess neuronal injury in Alzheimer's disease. Alzheimers Dement (Amst) 10:669-677
Pottier, Cyril; Zhou, Xiaolai; Perkerson 3rd, Ralph B et al. (2018) Potential genetic modifiers of disease risk and age at onset in patients with frontotemporal lobar degeneration and GRN mutations: a genome-wide association study. Lancet Neurol 17:548-558
Oxtoby, Neil P; Young, Alexandra L; Cash, David M et al. (2018) Data-driven models of dominantly-inherited Alzheimer's disease progression. Brain 141:1529-1544
Del-Aguila, Jorge L; Fernández, Maria Victoria; Schindler, Suzanne et al. (2018) Assessment of the Genetic Architecture of Alzheimer's Disease Risk in Rate of Memory Decline. J Alzheimers Dis 62:745-756
Bonham, Luke W; Karch, Celeste M; Fan, Chun C et al. (2018) CXCR4 involvement in neurodegenerative diseases. Transl Psychiatry 8:73
Mishra, Shruti; Blazey, Tyler M; Holtzman, David M et al. (2018) Longitudinal brain imaging in preclinical Alzheimer disease: impact of APOE ?4 genotype. Brain 141:1828-1839

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