Medicine and Health Sciences Commons^™

The Effect Of Traumatic Brain Injury On Tau Pathology By A Potential Seeding Mechanism, George Edwards Iii

Dissertations & Theses (Open Access)

The misfolding, aggregation and accumulation of specific proteins is the overarching concept in protein misfolding disorders (PMDs). The microtubule associated protein tau is known to form insoluble filaments known as neurofibrillary tangles (NFTs) composed of hyperphosphorylated tau (pTau) found in a subset of PMDs called tauopathies, such as Alzheimer’s disease (AD) and chronic traumatic encephalopathy (CTE), among others. Misfolded tau engenders a structurally alternative intermediate conformation that is prone to aggregate having amyloidogenic properties. Formation of amyloids, such as tau aggregates, is proposed to follow a nucleation-polymerization model where misfolded, soluble oligomeric seeds can trigger native proteins to misfold and …

High Frequency Oscillations Are Phase-Amplitude Coupled In Stress Induced Seizures Following Traumatic Brain Injury, Paul Jung

Electronic Thesis and Dissertation Repository

Traumatic Brain Injury (TBI) often leads to the development of epilepsy, especially with the occurrence of stressful events. Stressors increase the levels of corticotropin-releasing factor (CRF) in the amygdala, which can be damaged by the secondary effects of TBI. It is hypothesized that the activity of CRF receptor type 1 (CRFR₁) in the amygdala is altered post-TBI and supports the generation of epileptiform waves, namely high-frequency oscillations (HFOs). Sprague-Dawley rats were given a moderate TBI and in vivo recordings of the amygdala were taken during the administration of an acute tail pinch stressor. The stressor increased broadband activity …

Teaching Physical Education Skills To A Student With A Disability Through Video Modeling, Robin Huddleston

Theses and Dissertations

Video modeling (VM) is a video-based intervention (VBI) that has been implemented with individuals with disabilities to teach various life and educational skills. It is a tool that allows learners to watch a target skill modeled on a pre-recorded video. The learner is able to re-watch a new skill as many times as needed, and the teacher is given the flexibility needed to work with multiple students while providing individualized instruction. The participant in this study was a 13-year-old male with a traumatic brain injury (TBI) and intellectual disability (ID). The participant was enrolled in a life skills class at …

The Study Of Neurological Response In Art Therapy And Trauma: A Literature Review, Kristin Weber

Expressive Therapies Capstone Theses

This review will focus on neurological research and art therapy practice to consider benefits of the integration of science and the creative therapies. These topics will be addressed through a trauma informed theoretical lens, focusing on Post-Traumatic Stress Disorder and Traumatic Brain Injury diagnoses in the US military veteran population. Arts-based, qualitative, and quantitative research were correlated within this review to discover links between neurology and art therapy’s unique impact on trauma, and the outcome of combining these practices. The conclusions found that, with limited research connecting these two fields, there is a possibility for enhanced trauma treatment through the …

Pain-Related Fear: Metacognitive And Health Belief Predictors Of Cogniphobia, Maddison Miles

Masters Theses, 2010-2019

Individuals who have an unreasonable fear of headache pain or painful re-injury during cognitive exertion are said to suffer from a pain-related fear referred to as cogniphobia. Specifically, individuals high in cogniphobia avoid cognitive tasks in an attempt to reduce the risk of initiating or exacerbating headache-related pain. While health beliefs concerning pain-related fear have been examined through the concept of kinesiophobia, defined as the unreasonable fear of pain or painful re-injury during physical movement, little research has been done through a cognitive framework. The health anxiety beliefs, metacognitive factors, and negative thinking patterns related to cogniphobia remain unclear. This …

Axon Initial Segment Integrity In Aging And Traumatic Brain Injury, Mazen M. Gouda

Theses and Dissertations

According to the Center for Disease Control’s (CDC) report to the Congress, there are 2.2 million emergency department visits; 80,000 hospitalizations; and 50,000 deaths each year due to traumatic brain injury. Adults 65 years and older account substantially for the majority of the hospitalization and deaths. Over 70% of the traumatic brain injuries of the older adults are classified as mild to moderate; however, even with these milder injuries, older adults present with a significantly higher morbidity and mortality compared to all other age groups (LeBlanc et al., 2006). With that in mind, it seems essential to develop a deeper …

The Effects Of Notch Signaling On Functional Recovery Following Traumatic Brain Injury, Jyoti Lodha

Theses and Dissertations

2.5 million people sustain a traumatic brain injury (TBI) annually in the United States. Although there is potential for functional recovery following TBI, there is no definitive treatment to improve recovery after TBI. Our lab has shown that TBI enhances an endogenous neurogenic response in the subventricular zone and hippocampus. TBI-induced neural stem cells (NSCs) can integrate into regions such as the hippocampus and olfactory bulb. Although the mechanism behind TBI-enhanced neurogenesis remains unknown, the Notch signaling pathway has been implicated as a regulator in the maintenance and survival of NSCs.

This thesis explores the effects of Notch pathway manipulation …

Neuroprotective Strategies Following Experimental Traumatic Brain Injury: Lipid Peroxidation-Derived Aldehyde Scavenging And Inhibition Of Mitochondrial Permeability Transition, Jacqueline Renee Kulbe

Theses and Dissertations--Neuroscience

Traumatic brain injury (TBI) represents a significant health crisis. To date there are no FDA-approved pharmacotherapies available to prevent the neurologic deficits caused by TBI. Following TBI, dysfunctional mitochondria generate reactive oxygen and nitrogen species, initiating lipid peroxidation (LP) and the formation of LP-derived neurotoxic aldehydes, which bind mitochondrial proteins, exacerbating dysfunction and opening of the mitochondrial permeability pore (mPTP), resulting in extrusion of mitochondrial sequestered calcium into the cytosol, and initiating a downstream cascade of calpain activation, spectrin degradation, neurodegeneration and neurologic impairment.

As central mediators of the TBI secondary injury cascade, mitochondria and LP-derived neurotoxic aldehydes make promising …

Pathological Tau As A Cause, And Consequence, Of Cellular Dysfunction, Shelby Meier

Theses and Dissertations--Physiology

Tauopathies are a group of neurodegenerative diseases characterized by the abnormal deposition of the protein tau, a microtubule stabilizing protein. Under normal physiological conditions tau is a highly soluble protein that is not prone to aggregation. In disease states alterations to tau lead to enhanced fibril formation and aggregation, eventually forming neurofibrillary tangles (NFTs). The exact cause for NFT deposition is unknown, but increased post-translational modifications and mutations to the tau gene can increase tangle formation.

Tauopathic brains are stuck in a detrimental cycle, with cellular dysfunction contributing to the development of tau pathology and the development of tau pathology …

The Effects Of Argentine Tango On Balance And Quality Of Life In Subjects With Traumatic Brain Injury, Pamela Marie Peterson

Graduate Student Theses, Dissertations, & Professional Papers

This study investigated the effect of a six-week tango-based intervention on the balance and quality of life on subjects with traumatic brain injury (TBI). Twenty-two men and women were assigned into three groups TBI group (TBI: n=2; 44.5±2.1 years), Treatment control (TC: n=8; 30.9±12.3 years), Control (CG: n=12; 32.8±9.6 years). The TC group showed an improvement in stress levels compared to the CG p