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Neuroscience and Neurobiology Commons™
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Articles 1 - 5 of 5
Full-Text Articles in Neuroscience and Neurobiology
Ros Regulation Of Axonal Mitochondrial Transport, Pin-Chao Liao
Ros Regulation Of Axonal Mitochondrial Transport, Pin-Chao Liao
Open Access Dissertations
Mitochondria perform critical functions including aerobic ATP production and calcium (Ca2+) homeostasis, but are also a major source of reactive oxygen species (ROS) production. To maintain cellular function and survival in neurons, mitochondria are transported along axons, and accumulate in regions with high demand for their functions. Oxidative stress and abnormal mitochondrial axonal transport are associated with neurodegenerative disorders. However, we know little about the connection between these two. Using primaryDrosophila neuronal cell culture and the third instar larval nervous system as in vitro and in vivo models, respectively, we studied mitochondrial transport under oxidative stress conditions. In vitro …
Characterizing The Effects Of Repetitive Head Trauma In Female Soccer Athletes For Prevention Of Mild Traumatic Brain Injury, Diana Otero Svaldi
Characterizing The Effects Of Repetitive Head Trauma In Female Soccer Athletes For Prevention Of Mild Traumatic Brain Injury, Diana Otero Svaldi
Open Access Dissertations
As participation in women’s soccer continues to grow and the longevity of female athletes’ careers continues to increase, prevention of mTBI in women’s soccer has become a major concern for female athletes as the long-term risks associated with a history of mTBI are well documented. Among women’s sports, soccer exhibits the highest concussion rates, on par with those of men’s football at the collegiate level. Head impact monitoring technology has revealed that “concussive hits” occurring directly before symptomatic injury are not predictive of mTBI, suggesting that the cumulative effect of repetitive head impacts experienced by collision sport athletes should be …
The Effect Of Voluntary Binge Caffeine And Ethanol Coexposure On Neurobehavioral Sensitivity To Cocaine In Male C57bl/6j Mice, Brandon M. Fritz
The Effect Of Voluntary Binge Caffeine And Ethanol Coexposure On Neurobehavioral Sensitivity To Cocaine In Male C57bl/6j Mice, Brandon M. Fritz
Open Access Dissertations
Recently, the co-consumption of highly caffeinated energy drinks and alcohol has become a public health concern. Consumption of these beverages has been linked to a wide variety negative consequences including alcohol poisoning, driving under the influence, physical harm, and sexual violence. The more protracted consequences of caffeinated alcohol consumption have received very little attention, however. Some evidence suggests that individuals that frequently consume energy drinks mixed with alcohol are more likely to develop an alcohol use disorder. Interestingly, both caffeine and alcohol use alone have been linked to polydrug abuse. It is therefore of interest whether combined caffeine and alcohol …
Axonal Transport And Life Cycle Of Mitochondria In Parkinson's Disease Model, Hyun Sung
Axonal Transport And Life Cycle Of Mitochondria In Parkinson's Disease Model, Hyun Sung
Open Access Dissertations
In neurons, normal distribution and selective removal of mitochondria are essential for preserving compartmentalized cellular function. Parkin, an E3 ubiquitin ligase associated with familial Parkinson’s disease, has been implicated in mitochondrial dynamics and removal. However, it is not clear how Parkin plays a role in mitochondrial turnover in vivo, and whether the mature neurons possess a compartmentalized Parkin-dependent mitochondrial life cycle. Using the live Drosophila nervous system, here, I investigate the involvement of Parkin in mitochondrial dynamics; organelle distribution, morphology and removal. Parkin deficient animals displayed less number of axonal mitochondria without disturbing organelle motility behaviors, morphology and metabolic state. …
Characterization Of Cu-Rich Aggregates In Neurogenic Niches Of The Rodent Brain By X-Ray Fluorescence Microscopy, Brendan T. Sullivan
Characterization Of Cu-Rich Aggregates In Neurogenic Niches Of The Rodent Brain By X-Ray Fluorescence Microscopy, Brendan T. Sullivan
Open Access Dissertations
Copper is an essential element in the brain playing several critical roles ranging from neurotransmitter synthesis to ATP production. As Cu is typically present in micromolar concentrations and has a spatially capricious distribution in the brain, determining concentrations has historically been challenging. X-ray fluorescence microscopy (XRF) offers excellent spatial resolution (down to 30~nm) and detection limits (sub parts per million), making it an excellent tool for analyzing metal distributions in the brain. Using XRF, it is demonstrated that Cu-rich aggregates with concentrations in the hundreds of millimolar are present in the subventricular zone of rats and mice. As the subventricular …