Journal
NEUROBIOLOGY OF AGING
Volume 45, Issue -, Pages 64-75Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.neurobiolaging.2016.05.005
Keywords
Spatial training; Alzheimer's disease; Neurogenesis; Morris water maze; Hippocampus
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Funding
- New Investigator Research Grant of Alzheimer's Association, United States [NIRG-12-241368]
- National Natural Science Foundation of China [81271402, 81471303]
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Neurogenesis plays a role in hippocampus-dependent learning and impaired neurogenesis may correlate with cognitive deficits in Alzheimer's disease. Spatial training influences the production and fate of newborn cells in hippocampus of normal animals, whereas the effects on neurogenesis in Alzheimer-like animal are not reported until now. Here, for the first time, we investigated the effect of Morris water maze training on proliferation, survival, apoptosis, migration, and differentiation of newborn cells in beta-amyloidetreated Alzheimer-like rats. We found that spatial training could preserve a short-term survival of newborn cells generated before training, during the early phase, and the late phase of training. However, the training had no effect on the long-term survival of mature newborn cells generated at previously mentioned 3 different phases. We also demonstrated that spatial training promoted newborn cell differentiation preferentially to the neuron direction. These findings suggest a time-independent neurogenesis induced by spatial training, which may be indicative for the cognitive stimulation in Alzheimer's disease therapy. (C) 2016 Elsevier Inc. All rights reserved.
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