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Relative neuron loss in hippocampal sclerosis of aging and Alzheimer's disease.


ABSTRACT: OBJECTIVE:To characterize the pattern of neuron loss in hippocampal sclerosis of aging (HS-Aging) and age-related diseases and to evaluate its contribution to cognitive impairment in the elderly. METHODS:Participants (n?=?1,361) came from longitudinal observational studies of aging at the Knight Alzheimer Disease Research Center, Washington University (St. Louis, MO). Relative neuron loss in the hippocampus of HS-Aging was measured using unbiased stereological methods. Transactive response DNA-binding protein of 43 kDa (TDP-43) proteinopathy, a putative marker of HS-Aging, was assessed. Clinical and cognitive data were analyzed using parametric statistical methods. RESULTS:Ninety-three cases had HS-Aging (6.8%), 8 cases had "pure" HS-Aging, and 37 cases had comorbid intermediate or high Alzheimer's disease neuropathological change (i/h ADNC). Relative neuron loss (ratio of neuron number in hippocampal subfield CA1 to the neuron number in parahippocampal gyrus) was 0.15 for HS-Aging; this was significantly lower than 0.64 for i/h ADNC and 0.66 for control cases (Kruskal-Wallis test, p?

SUBMITTER: Ihara R 

PROVIDER: S-EPMC6373729 | biostudies-literature | 2018 Nov

REPOSITORIES: biostudies-literature

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Relative neuron loss in hippocampal sclerosis of aging and Alzheimer's disease.

Ihara Ryoko R   Vincent Benjamin D BD   Baxter Michael R MR   Franklin Erin E EE   Hassenstab Jason J JJ   Xiong Chengjie C   Morris John C JC   Cairns Nigel J NJ  

Annals of neurology 20181025 5


<h4>Objective</h4>To characterize the pattern of neuron loss in hippocampal sclerosis of aging (HS-Aging) and age-related diseases and to evaluate its contribution to cognitive impairment in the elderly.<h4>Methods</h4>Participants (n = 1,361) came from longitudinal observational studies of aging at the Knight Alzheimer Disease Research Center, Washington University (St. Louis, MO). Relative neuron loss in the hippocampus of HS-Aging was measured using unbiased stereological methods. Transactive  ...[more]

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