Rescue of aging-associated decline in Dnmt3a2 expression restores cognitive abilities

Cognitive abilities decline in normal aging, yet the underlying molecular mechanisms are poorly understood. We found that aging was associated with a decrease in the expression of the DNA methyltransferase Dnmt3a2 in the hippocampus and that rescuing Dnmt3a2 levels restored cognitive functions. More...

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Hauptverfasser: Oliveira, Ana (VerfasserIn) , Hemstedt, Thekla Joana (VerfasserIn) , Bading, Hilmar (VerfasserIn)
Dokumenttyp: Article (Journal)
Sprache:Englisch
Veröffentlicht: 1 July 2012
In: Nature neuroscience
Year: 2012, Jahrgang: 15, Heft: 8, Pages: 1111-1113
ISSN:1546-1726
DOI:10.1038/nn.3151
Online-Zugang:Resolving-System, Volltext: http://dx.doi.org/10.1038/nn.3151
Verlag, Volltext: https://www.nature.com/articles/nn.3151
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Verfasserangaben:Ana M.M. Oliveira, Thekla J. Hemstedt & Hilmar Bading
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Zusammenfassung:Cognitive abilities decline in normal aging, yet the underlying molecular mechanisms are poorly understood. We found that aging was associated with a decrease in the expression of the DNA methyltransferase Dnmt3a2 in the hippocampus and that rescuing Dnmt3a2 levels restored cognitive functions. Moreover, we found that Dnmt3a2 is an activity-regulated immediate early gene that is partly dependent on nuclear calcium signaling and that hippocampal Dnmt3a2 levels determine cognitive abilities in both young adult and aged mice.
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Beschreibung:Online Resource
ISSN:1546-1726
DOI:10.1038/nn.3151