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Full-Text Articles in Medicine and Health Sciences
The Effects Of Astrocytic Derived Insulin-Like Growth Factor (Igf-1) On Cognition And Astrocytes, Destiny Wilson
The Effects Of Astrocytic Derived Insulin-Like Growth Factor (Igf-1) On Cognition And Astrocytes, Destiny Wilson
Honors Theses
Insulin-like growth factor 1 (IGF-1) is a neuroendocrine signaling hormone that plays a vital role in growth and development, as well as learning and memory. Inhibition of this hormone results in cognitive impairments like those seen with age-related decline. While a majority of research has focused on the role of IGF-1 on neurons, the role of astrocytes still needs to be explored. Our research investigates how astrocytes and cognition are affected as a result of direct regulation of localized IGF-1 production in early development and after puberty. Preliminary studies in our laboratory established a connection between IGF-1 and glial fibrillary …
Sex Differences In Hippocampal O-Glcnacylation Of The Adult Mouse Brain, Makenzie Johnson
Sex Differences In Hippocampal O-Glcnacylation Of The Adult Mouse Brain, Makenzie Johnson
Selected Honors Theses
The hippocampus is a structure in the brain crucial for learning and memory. This occurs by synaptic remodeling known as long term potentiation and long term depression. Modifications of proteins in the hippocampus can affect its function. One of these modifications is the addition of O-linked β-N-acetylglucosamine, also known as O-GlcNAc. This is a sugar produced from glucose by the hexosamine biosynthetic pathway that is reversibly added onto serine and threonine residues of proteins by O-GlcNAc Transferase, or OGT. It is reversibly removed from these residues by O-GlcNAcAse, or OGA. This modification has been implicated in diabetes, cardiac dysfunction, and …
Cell Type-Specific Diurnal Variation In Hippocampus Physiology, Lacy Kathryn Goode
Cell Type-Specific Diurnal Variation In Hippocampus Physiology, Lacy Kathryn Goode
All ETDs from UAB
Circadian rhythms are biological processes that cycle across 24 hours. Driven endogenously by widely expressed and highly conserved clock genes that compose the circadian molecular clock, circadian rhythms are exhibited in numerous facets of physiology across nearly every tissue throughout the body. Diurnal rhythms in cognition, long-term potentiation (LTP), and the expression of clock genes in hippocampus subfields support a role for circadian regulation of hippocampus physiology. However, little is known regarding the circadian molecular clock and diurnal rhythms in neurophysiology at the cellular level. Here, we characterized diurnal differences in spatial memory, LTP, excitability of and synaptic transmission onto …