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Articles 1 - 10 of 10
Full-Text Articles in Nervous System
Expanding Access To Noninvasive Spinal Neuromodulation For Pediatric Spinal Cord Injury Rehabilitation: A Comparative Device Study, Alice E C Palmer
Expanding Access To Noninvasive Spinal Neuromodulation For Pediatric Spinal Cord Injury Rehabilitation: A Comparative Device Study, Alice E C Palmer
College of Arts & Sciences Senior Theses
Paralysis following spinal cord injury (SCI) has traditionally been considered permanent due to the disruption of supraspinal input to spinal motor circuits. However, growing evidence suggests that spinal networks below the level of injury retain intrinsic motor-generating capabilities through central pattern generators. Transcutaneous spinal cord stimulation (scTS) is a noninvasive neuromodulation technique that delivers electrical stimulation through the skin to reactivate these spinal networks. Although prior studies demonstrate that scTS delivered through research-grade devices is safe and effective in adults and children with chronic SCI, clinical translation remains limited by lack of FDA-approved systems, high costs, and restricted access to …
Novel Insights Into Oligodendrocyte Biology From Developmental Myelination Studies In Autophagy Deficient Mice And Analysis Of Oligodendrocyte Translatome Response To Contusive Spinal Cord Injury., Michael David Forston
Novel Insights Into Oligodendrocyte Biology From Developmental Myelination Studies In Autophagy Deficient Mice And Analysis Of Oligodendrocyte Translatome Response To Contusive Spinal Cord Injury., Michael David Forston
Electronic Theses and Dissertations
Loss of myelin causes severe neurological disorders and functional deficits in white matter injuries (WMI) such as traumatic spinal cord injury (SCI). This dissertation is focused on autophagy in OL development and the OL translatome after SCI. Chapter I describes the history of myelin, OL development, and their involvement in neurodegenerative diseases and SCI. The proteostasis network, in particular autophagy, and its contributions to white matter pathology is discussed. It concludes examining advantages and disadvantages of unbiased omics tools, like RiboTag, to study transcriptional/translational landscapes after SCI. Chapter II focuses on autophagy in OPC/OL differentiation, survival, and proper myelination in …
Immobilization And Its Effects On Functional Recovery After Spinal Cord Injury., William H. Gregory
Immobilization And Its Effects On Functional Recovery After Spinal Cord Injury., William H. Gregory
College of Arts & Sciences Senior Theses
Recovery, or rather the failure to recover, is a perplexing issue of spinal cord injury that is currently being investigated. This issue becomes more puzzling when investigating models in which spinal cord injury (SCI) is studied. There appears to be greater functional recovery experienced by animals within these models after injury as compared to patients in the clinical setting. While many things could contribute to this disparity, one difference that stands out when comparing the basic research model and clinical experience of SCI is the inactivity and limb disuse after the injury. This same level of immobility is rarely accounted …
Supraspinal Reorganization After Pediatric-Onset Spinal Cord Injury., Luis Alvarado
Supraspinal Reorganization After Pediatric-Onset Spinal Cord Injury., Luis Alvarado
Electronic Theses and Dissertations
Pediatric spinal cord injury (SCI) disrupts the efferent and afferent flow of the developing brain, leading to devastating functional impairments below the injury site, yet our understanding of its impact on the brain remains limited. This study examines supraspinal reorganization in children with SCI using electrophysiology and neuroimaging techniques to understand the relationship between residual spinal transmission and supraspinal reorganization. Chapter 2 discusses the development of a child-centric approach using ‘learn, play, and practice’ to foster a trusting relationship with each child and increase compliance with experimental protocols. Chapter 3 evaluates the residual neural transmission of three spinal pathways in …
Evaluation Of Respiratory Function Using Blood Gas Parameters In Yucatan Minipigs Following Spinal Cord Injury, Jackson Gallagher, Monique Morgan, Chase Knibbe, Destiny Gibson, Maxwell Boakye
Evaluation Of Respiratory Function Using Blood Gas Parameters In Yucatan Minipigs Following Spinal Cord Injury, Jackson Gallagher, Monique Morgan, Chase Knibbe, Destiny Gibson, Maxwell Boakye
The Cardinal Edge
There are approximately 17,810 new spinal cord injuries (SCI) in the U.S. each year [1]. Physical damage to the spinal cord has the potential to interfere with normal motor, sensory, and/or autonomic function, such as impairment of the respiratory system. In fact, respiratory insufficiency is the number one cause of mortality and morbidity after SCI. The more rostral the injury, the more likely there will be disruption to normal ventilation (generally rostral to T6) [2]. To conduct relevant preclinical research, it has been shown that large animal models, such as the Yucatan minipig, have a better success rate of translating …
Medical Schools Ignore The Nature Of Consciousness At Great Cost, Anoop Kumar
Medical Schools Ignore The Nature Of Consciousness At Great Cost, Anoop Kumar
Journal of Wellness
The essential question of the relationship between consciousness and matter is ignored in medical school curricula, leading to a machine-like view of the human being that contributes to physician burnout and intellectual dissatisfaction. The evidence suggesting that the brain may not be the seat of consciousness is generally ignored to preserve the worldview of the primacy of matter. By investigating new frameworks detailing the nature of consciousness at different levels of hierarchy, we can bring intellectual rigor to a once opaque subject that supports a fundamental reality about our experience: We are human beings, not only human bodies.
Defects In Fetal Mouth Movement And Pharyngeal Patterning Underlie Cleft Palate Caused By Retinoid Deficiency., Regina Friedl
Defects In Fetal Mouth Movement And Pharyngeal Patterning Underlie Cleft Palate Caused By Retinoid Deficiency., Regina Friedl
Electronic Theses and Dissertations
Cleft palate is a common birth defect. Etiologic mechanisms of palate cleft include defects in palate morphogenesis, mandibular growth, or spontaneous fetal mouth movement. Cleft palate linked to deficient fetal mouth movement has been demonstrated directly only in a single experimental model of loss of neurotransmission. Here, using retinoid deficient mouse embryos, we demonstrate directly for the first time that deficient fetal mouth movement and cleft palate occurs as a result of mis-patterned development of pharyngeal peripheral nerves and cartilages. Retinoid deficient embryos were generated by inactivation of retinol dehydrogenase 10 (Rdh10), which is critical for production of …
Spinal Cord Injury Induced Cardiac Decline And The Limitations Of Exercise., Kathryn Michele Deveau
Spinal Cord Injury Induced Cardiac Decline And The Limitations Of Exercise., Kathryn Michele Deveau
Electronic Theses and Dissertations
There is a general consensus that the level and the severity of spinal cord injury (SCI) impacts chronic cardiac abnormalities such that high thoracic and cervical SCI are the most severely affected. Furthermore, the extreme degree of immobility/inactivity experienced by the persons with SCI has implications on cardiac decline. Yet it has been difficult to separate the relative contributions of the decentralized autonomic nervous system (ANS) and the immediate and profound inactivity to chronic cardiac abnormalities. As such, this body of work sought to characterize a contusion SCI that results in persistent CV dysfunction. Echocardiography, Dobutamine stress echocardiography and pressure …
Boundary Contour Based Surface Representation., Yong Su
Boundary Contour Based Surface Representation., Yong Su
Electronic Theses and Dissertations
We receive most information about our surrounding space and objects through the eyes. To reconstruct the 3D space and objects in the visual system from the 2D retinal images, surface representation must be a critical intermediate stage in the visual processing stream. It is hypothesized in the dissertation that the visual system represents textured surface by a border-to-interior strategy: boundary contours would be encoded first and then border-ownership assignments would be resolved. This process would solve the related problems such as figure-ground segregation, surface depth relationship, occlusion, transparency, etc. As a result, the boundary contours of the surfaces would be …
Signaling Mechanisms In Regenerative Myogenesis., Sajedah M. Hindi 1986-
Signaling Mechanisms In Regenerative Myogenesis., Sajedah M. Hindi 1986-
Electronic Theses and Dissertations
Skeletal muscle constitutes a highly plastic and malleable tissue that rapidly and profoundly adapts to various environmental and physiological stimuli. This response takes place by means of regulated signaling transduction which elicits changes in gene expression, biochemical, and metabolic properties. Adult muscle is composed by alignment of multinucleated, post mitotic muscle fibers formed during embryonic and neonatal development. Residing in the niche of mature muscle fibers is a small population of undifferentiated muscle progenitors termed satellite cells. Satellite cells are muscle stem cells that carry out regenerative response in adult myofibers. Coordinated signaling emitting from terminally differentiated muscle fibers and …