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- W2592832786 abstract "The hippocampal formation undergoes significant morphological and functional changes after prolonged caloric and dietary restriction (DR). In this study we tested whether prolonged DR results in deleterious alterations in hippocampal neurogenesis, density of granule cell neurons and mossy fibers, all of which support plasticity in the dentate gyrus. Young adult animals either experienced free access to food (control condition), or every-other-day feeding regimen (DR condition) for 3months. The number of Ki-67 cells and 28-day old 5-bromo-2'-deoxyuridine (BrdU) cells were quantified in the dorsal and ventral dentate gyrus to determine the effect of DR on cellular proliferation and survival of neural progenitor cells in the anatomically defined regions of the dentate gyrus. The density of granule cell neurons and synaptoporin were also quantified to determine the effect of DR on granule cell neurons and mossy fiber projections in the dentate gyrus. Our results show that DR increases cellular proliferation and concurrently reduces survival of newly born neurons in the ventral dentate gyrus without effecting the number of cells in the dorsal dentate gyrus. DR reduced density of granule cell neurons in the dorsal dentate gyrus. These alterations in the number of granule cell neurons did not affect mossy fiber density in DR animals, which was visualized as no differences in synaptoporin expression. Our findings demonstrate that granule cell neurons in the dentate gyrus are vulnerable to chronic DR and that the reorganization of granule cells in the dentate gyrus subregions is not producing concomitant alterations in dentate gyrus neuronal circuitry with this type of DR." @default.
- W2592832786 created "2017-03-16" @default.
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- W2592832786 date "2017-05-01" @default.
- W2592832786 modified "2023-10-17" @default.
- W2592832786 title "Dietary restriction reduces hippocampal neurogenesis and granule cell neuron density without affecting the density of mossy fibers" @default.
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- W2592832786 doi "https://doi.org/10.1016/j.brainres.2017.02.028" @default.
- W2592832786 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/5410768" @default.
- W2592832786 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/28284897" @default.
- W2592832786 hasPublicationYear "2017" @default.
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