Article ; Online: Presymptomatic Reduction of Individuality in the App
2023 Volume 94, Issue 9, Page(s) 721–731
Abstract: Background: One-third of the risk for Alzheimer's disease is explained by environment and lifestyle, but Alzheimer's disease pathology might also affect lifestyle and thereby impair the individual potential for health behavior and prevention.: Methods! ...
| Abstract | Background: One-third of the risk for Alzheimer's disease is explained by environment and lifestyle, but Alzheimer's disease pathology might also affect lifestyle and thereby impair the individual potential for health behavior and prevention. Methods: We examined in mice how the App Results: After 4 months of ENR, the mean and variability of plasma ApoE were increased in NL-F mice, suggesting a presymptomatic variation in pathogenic processes. Roaming entropy as a measure of behavioral activity was continuously assessed with radiofrequency identification (RFID) technology and revealed reduced habituation and variance in NL-F mice compared with control animals, which do not carry a Beyreuther/Iberian mutation. Intraindividual variation decreased, while behavioral stability was reduced in NL-F mice. Seven months after discontinuation of ENR, we found no difference in plaque size and number, but ENR increased variance in hippocampal plaque counts in NL-F mice. A reactive increase in adult hippocampal neurogenesis in NL-F mice, known from other models, was normalized by ENR. Conclusions: Our data suggest that while NL-F has early effects on individual behavioral patterns in response to ENR, there are lasting effects on cellular plasticity even after the discontinuation of ENR. Hence, early behavior matters for maintaining individual behavioral trajectories and brain plasticity even under maximally constrained conditions. |
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| MeSH term(s) | Animals ; Mice ; Alzheimer Disease/genetics ; Alzheimer Disease/pathology ; Amyloid beta-Peptides ; Amyloid beta-Protein Precursor/genetics ; Disease Models, Animal ; Individuality ; Mice, Transgenic | |||||
| Chemical Substances | Amyloid beta-Peptides ; Amyloid beta-Protein Precursor | |||||
| Language | English | |||||
| Publishing date | 2023-04-17 | |||||
| Publishing country | United States | |||||
| Document type | Journal Article | |||||
| ZDB-ID | 209434-4 | |||||
| ISSN | 1873-2402 ; 0006-3223 | |||||
| ISSN (online) | 1873-2402 | |||||
| ISSN | 0006-3223 | |||||
| DOI | 10.1016/j.biopsych.2023.04.009 | |||||
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| Database | MEDical Literature Analysis and Retrieval System OnLINE |
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