Area:
sleep, memory, Alzheimer's disease
Website:
tudorlab.com
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High-probability grants
According to our matching algorithm, Jennifer Choi Tudor is the likely recipient of the following grants.
Years |
Recipients |
Code |
Title / Keywords |
Matching score |
2014 — 2015 |
Tudor, Jennifer Choi |
F32Activity Code Description: To provide postdoctoral research training to individuals to broaden their scientific background and extend their potential for research in specified health-related areas. |
The Role of Mtor Signaling in the Cognitive Impact of Sleep Deprivation @ University of Pennsylvania
DESCRIPTION (provided by applicant): Sleep loss produces deficits in hippocampal synaptic plasticity and hippocampus-dependent memory storage. However, the molecular and cellular mechanisms that underlie these effects of sleep deprivation remain unclear. Several studies have suggested that protein synthesis pathways are altered during sleep and after periods of sleep deprivation. None however have previously described in mechanistic detail how protein synthesis is altered with sleep or sleep deprivation, nor how these alterations regulate memory formation. In this proposal, we will explore the protein synthesis regulatory role of mammalian target of rapamycin (mTOR) signaling during sleep and sleep-mediated memory consolidation. The experiments proposed will develop tools to analyze mTOR signaling in the brain and will provide direct evidence for a novel role of mTOR signaling in sleep-dependent memory consolidation. In this application, two Specific Aims are proposed that use novel genetic approaches to study how sleep deprivation affects the mTOR signaling pathway that results in reduced translation. To directly test the role of mTOR signaling - and the role of 4E-BP activity in particular - in sleep deprivation-induced impairments, we will use a viral-expression approach in Specific Aim 1 to determine if expressing wild-type 4E-BP in the hippocampus is sufficient to restore memory and plasticity deficits induced by sleep deprivation. This approach will allow for carefully timed and cell type- and brain region-specific expression of 4E-BP with sleep deprivation. Finally, in Specific Aim 2 we will use a viral approach to determine if expressing phosphorylation-defective 4E-BP in the hippocampus will mimic the effects of sleep deprivation. Importantly, these experiments will allow us to determine if mTOR signaling plays a functional role in the memory and plasticity deficits observed with sleep loss.
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