Medicine and Health Sciences Commons^™

An Existential Punchline: How Humor Functions In A Young Adult Friendship Facing Advanced Cancer, Megan E. Solberg

Electronic Theses and Dissertations

Young adults (i.e., age 18-39) only comprise 4% of the total cancer population, yet cancers in this group are commonly found at more advanced stages due to situational factors influencing delayed diagnosis including access to healthcare, quality health insurance and competing life demands that may hinder prioritization of healthcare. Young adults with cancer also face unique challenges including higher rates of psychological distress, which may contribute to increased risk of social disconnection in response to cancer. Research suggests that humor may be a helpful coping approach and communication mechanism for mitigating distress and discussing difficult topics. Grounded within the frameworks …

Providing Effective Assessment Feedback To Patients: Lessons Learned From Feedback After A Severe Injury, Kelsie Mcquinn

Graduate School of Professional Psychology: Doctoral Papers and Masters Projects

This paper seeks to articulate lessons learned from feedback received after a severe injury in order to help guide neuropsychologists provide effective feedback to patients. Given that there is no agreed upon conceptual framework for providing neuropsychological assessment feedback, parallels are drawn from what works in clinical psychology – the working alliance. I use personal examples to highlight how the working alliance, as well as other psychological principles, can help inform neuropsychologists provide the most effective feedback to patients.

The Intersection Of Traumatic Brain Injury And Homelessness, Stephanie A. Chassman

Electronic Theses and Dissertations

The rates of TBI are significantly higher among individuals experiencing homelessness compared to the general population. Up to half of individuals experiencing homelessness may have a TBI. Accurate prevalence rates of TBI among individuals experiencing homelessness are difficult to obtain due to different methods of sampling participants and differing definitions of TBI; therefore, estimates may be underrepresented. Despite past research that has examined the relationship between TBI and homelessness, there are specific gaps in knowledge such as correlates and risk factors of TBI among individuals experiencing homelessness. This three-manuscript dissertation attempts to address these gaps in knowledge.

The first manuscript …

Organellar Zn2+ Homeostasis And The Role Of Trpml Channels In Neuronal Lysosome Physiology And Axonal Transport, Taylor Franklin Minckley

Electronic Theses and Dissertations

Zinc (Zn²⁺) is crucial for proper cellular function, and as such it is important to measure and track Zn²⁺ dynamics in living cells. Fluorescent sensors have been used to estimate Zn²⁺ content of subcellular compartments, but little is known about endolysosomal Zn2+ homeostasis. Similarly, although numerous sensors have been reported, it is unclear whether and how Zn²⁺ can be released from intracellular compartments into the cytosol due to a lack of probes that can detect physiological dynamics of cytosolic Zn²⁺. My dissertation started with comparing and characterizing different Zn²⁺ sensors including the …

Antioxidant Biomarkers And Nutraceutical Therapeutics In Neurodegeneration And Neurotrauma, Lilia A. Koza

Electronic Theses and Dissertations

Mild traumatic brain injury (mTBI), yielding a Glascow Coma Scale of 13-15, is the most commonly occurring severity of TBI. Pathology from mTBI consists of blood brain barrier disruption, neuroinflammation, oxidative stress, excitotoxicity, mitochondrial dysfunction, protein aggregation, axonal degeneration, and resulting neuronal death. These processes deplete the body’s endogenous antioxidant system. We report a retrospective analysis of antioxidant blood biomarkers in patients with a history of mTBI from a local sports medicine clinic, Resilience Code. We found persistent sex-specific antioxidant depletions in mTBI patients associated with worsened symptomology.

Certain populations, such as athletes, are at high risk for repetitive mTBI …

Maternal Hpa Axis Function During Parenting Is Associated With Reduced Brain Activation To Infant Cry And More Intrusive Parenting Behavior, Andrew Erhart

Electronic Theses and Dissertations

Previous research indicated that maternal cortisol function and maternal brain response to infant stimuli are separately related to differences in parenting behavior. Evidence from animal models have demonstrated that chronically high cortisol concentration alters brain structure and function, suggesting that studying these two mechanisms together may further improve understanding of parental behavior in human mothers. First time mothers of infants aged 1-7 months old (M age = 3 months) were recruited to participate. Mother’s cortisol concentration was measured during a naturalistic interaction with their infant and their behavior was coded for maternal sensitivity and nonintrusiveness. In a separate session using …

Mechanisms Of Sensory Adaptation In The Primate Visual System, Boris Isaac Peñaloza Rojas

Electronic Theses and Dissertations

Under ecological conditions, the luminance impinging on the retina varies within a dynamic range of 220 dB. Stimulus contrast can also vary drastically within a scene, and eye movements leave little time for sampling luminance. In addition, the amount of information reaching our visual system far exceeds the brain’s information processing capacity. Given the limited dynamic range of its neurons and its limited capacity in processing visual information in real-time, the brain deploys both structural and functional solutions that work in tandem to adapt to the surroundings. In this work, employing visual psychophysics and computational neuroscience, we study the mechanisms …

Information And Readiness Build Resilience: The Role Of The Disaster Information Management Research Center, Stacey J. Arnesen, Florence Chang

Collaborative Librarianship

The National Library of Medicine (NLM) established the Disaster Information Management Research Center (DIMRC) in 2008 based on its history of providing health information for disaster preparedness, response, and recovery. The NLM long range plan (Charting a Course for the 21st Century: NLM's Long Range Plan 2006-2016) called for creation of a center to show "a strong commitment to disaster remediation and to provide a platform for demonstrating how libraries and librarians can be part of the solution to this national problem". NLM was urged to "ensure continuous access to health information and effective use of libraries and …

Social Aspects Of Food-Sensitive Adults, Jean Elizabeth Duane

Electronic Theses and Dissertations

People living with food-related illnesses find themselves subjugated by commonly held ideologies causing awkwardness in social situations. The current study is a qualitative analysis addressing how people with celiac disease (CD) navigate social situations in light of dominant beliefs that influence behaviors. Initially, I identify macro-level patriarchal, religious, sexist, ableist and etiquette-related commensality ideologies that disadvantage those with CD. Drawing from the communication narrative sense making (CNSM) theory that supports storytelling and memorable messages as a sense-making tool for individuals diagnosed with chronic illness and their family members, this work highlights retrospective stories and memorable messages from 20 randomly selected …

Patient-Specific Quantification Of The Relationship Between The Left Atrium Pressure And The Ostial Diameter Of The Left Atrial Appendage, Sky Tianqi Gao

Electronic Theses and Dissertations

The left atrial appendage has been a historically understudied region of the heart until fairly recently with the new understanding of its role in the stroke pathway of patients with atrial fibrillation. The goal of this study is to take a look at the biomechanical behavior of the left atrium and left atrial appendage under normal physiological loading conditions using material properties taken from biaxial stretch tests. Several different options for material properties models were tested and biaxial stretch test data of cadaveric human tissue samples for the left atrium and appendage were fit to a Fung-type strain-energy function for …

At The Center Of Things: How An Academic Library Built A Bridge Between Art And Science On Campus, Michelle Catalano, Catherine Essinger, Suzanne Ferimer, Stephanie Lewin-Lane, Porcia Vaughn

Collaborative Librarianship

The University of Houston Libraries sponsored an interdisciplinary event for students, faculty, and the public, titled the Artists’ Health and Wellness Colloquium and Resource Fair. Aspiring and working artists were instructed in how to maintain good health and to avoid overstressing their bodies as they practice their art. Scholars presented both historical and trending perspectives on the intersection of art and health science. The event was held in order to facilitate learning in two key research areas and to demonstrate the library's ability to bridge disparate disciplines and forge new partnerships with multiple academic units simultaneously. This article presents planning …

Abnormal Dendritic Maturation Of Developing Cortical Neurons Exposed To Corticotropin Releasing Hormone (Crh): Insights Into Effects Of Prenatal Adversity?, Megan M. Curran, Curt A. Sandman, Elysia Poggi Davis, Laura M. Glynn, Tallie Z. Baram

Psychology: Faculty Scholarship

Corticotropin releasing hormone (CRH) produced by the hypothalamus initiates the hypothalamic-pituitary-adrenal (HPA) axis, which regulates the body’s stress response. CRH levels typically are undetectable in human plasma, but during pregnancy the primate placenta synthesizes and releases large amounts of CRH into both maternal and fetal circulations. Notably, placental CRH synthesis increases in response to maternal stress signals. There is evidence that human fetal exposure to high concentrations of placental CRH is associated with behavioral consequences during infancy and into childhood, however the direct effects on of the peptide on the human brain are unknown. In this study, we used a …

Image Processing Of Oct Glaucoma Images And Information Theory Analysis, Shuting Wang

Electronic Theses and Dissertations

Glaucoma is a group of optic nerve disease with progressive structural changes leading to loss of visual function. A careful examination and detection of changes in the optic nerve is the key to early diagnosis of glaucoma. Optical Coherence Tomography (OCT) is one of the known techniques of diagnosis of glaucoma. The patients' eyes are scanned and sub-surface images are captured from optical nerves. Captured OCT images usually suffer from noise and therefore image enhancement techniques can help doctors in better analysis of OCT images and diagnosis of glaucoma. In this thesis, we propose three successful algorithms for enhancing the …