Digital Commons Network^™

Insulin Actions On Hippocampal Neurons, Shaniya Maimaiti

Theses and Dissertations--Pharmacology and Nutritional Sciences

Aging is the main risk factor for cognitive decline. The hippocampus, a brain region critical for learning and memory formation, is especially vulnerable to normal and pathological age-related cognitive decline. Dysregulation of both insulin and intracellular Ca2+ signaling appear to coexist and their compromised actions may synergistically contribute to neuronal dysfunction with aging. This dissertation focused on the interaction between insulin, Ca2+ dysregulation, and cognition in hippocampal neurons by examining the contributions of insulin to Ca2+ signaling events that influence memory formation. I tested the hypothesis that insulin would increase cognition in aged animals by altering Ca2+-dependent physiological mechanisms involved …

Resources And Well-Being In Amyotrophic Lateral Sclerosis Patients And Caregivers: A Longitudinal, Dyadic Analysis, Suzanne C. Segerstrom

Theses and Dissertations--Public Health (M.P.H. & Dr.P.H.)

Socioemotional selectivity theory predicts that as the end of life approaches, resources that provide immediate, hedonic reward become more important and resources that provide delayed rewards become less important. The present study tested the theory in the context of marital dyads in which one partner had been diagnosed with amyotrophic lateral sclerosis (ALS), a terminal disease. ALS patients (N = 102) and their spouses (N = 100) reported their loneliness, financial worry, and psychological health every 3 months for up to 18 months. In multilevel dyadic models, patients and spouses had similar levels of financial worry and loneliness, but spouses’ …

Comparison Of Pain Management Modalities In The Development Of Postoperative Respiratory Failure, Amanda Carney

DNP Projects

BACKGROUND: This paper outlines the steps taken for a quality improvement study that investigated the development of postoperative respiratory failure (PORF) at University of Kentucky Chandler Medical Center (UKCMC). The first paper describes the influence of an interprofessional education (IPE) pilot program on doctoral nursing students and the experiences gained while working on a process improvement project. The second paper is a literature review on predictors for PORF. The third paper is a case control study that investigated the effects of pain management modalities on the development of PORF.

OBJECTIVES: To outline the process for developing a practice improvement project. …

Evaluation Of Oral Nutritional Supplement Use In Elderly Patients Admitted With Heart Failure, Geri L. Sipe

DNP Projects

PURPOSE: The purpose of this study is to evaluate the effects of enhanced ordering privileges among registered dieticians (RD) on oral nutritional supplement (ONS) ordering frequency and prevalence of oral nutritional supplement use among elderly patients admitted with heart failure (HF).

METHODS: This study was a single facility, retrospective pre-post implementation evaluation of the impact of expanded ONS ordering privileges among elderly patients (age ≥ 65 years old) hospitalized with heart failure at Frankfort Regional Medical Center (FRMC). The sample consisted of 105 patients for the pre-evaluation period and 259 for the post-evaluation period.

RESULTS: There were …

Incidence Rate Of Delirium After Cardiac Surgery And Feasibility Of A Delirium Prediction Rule, Kelly Bohl

DNP Projects

Delirium is an acute, temporary cognitive disorder that is characterized by a change in mental status, altered level of judgement, and changes in perception and behavior. Elderly patients who undergo open cardiac surgery are particularly at risk for developing delirium postoperatively. Although it is a temporary disorder, there are many consequences associated with delirium after cardiac surgery, including a longer length of stay in the hospital, long term functional decline, a greater use of health care resources and an increase in mortality risk. The purpose of this project was to identify the one-year incidence of postoperative delirium after cardiac surgery …

Comparative Proteomic Analyses Of The Parietal Lobe From Rhesus Monkeys Fed A High-Fat/Sugar Diet With And Without Resveratrol Supplementation, Relative To A Healthy Diet: Insights Into The Roles Of Unhealthy Diets And Resveratrol On Function, Aaron M. Swomley, Judy C. Triplett, Jeriel T. Keeney, Govind Warrier, Kevin J. Pearson, Julie A. Mattison, Rafael De Cabo, Jian Cai, Jon B. Klein, D. Allan Butterfield

Chemistry Faculty Publications

A diet consisting of a high intake of saturated fat and refined sugars is characteristic of a Western-diet and has been shown to have a substantial negative effect on human health. Expression proteomics were used to investigate changes to the parietal lobe proteome of rhesus monkeys consuming either a high fat and sugar (HFS) diet, a HFS diet supplemented with resveratrol (HFS+RSV), or a healthy control diet for 2 years. Here we discuss the modifications in the levels of 12 specific proteins involved in various cellular systems including metabolism, neurotransmission, structural integrity, and general cellular signaling following a nutritional intervention. …

The Effects Of Golf Stance On The Peak Knee Adduction Moment During The Golf Swing, Quenten L. Hooker

Theses and Dissertations--Kinesiology and Health Promotion

INTRODUCTION: The knee joint is one of the most frequently injured structures in the game of golf. The loads experienced by the knee during the golf swing are typically greater than those experienced during walking. In particular, a heightened lead limb peak external knee adduction moment has been linked to the progression of medial compartment knee osteoarthritis (OA). Altering movement patterns is a common strategy that can be used to reduce loading on the knee joint but has received little attention during the golf swing. Also, while such manipulations may be beneficial from an injury prevention perspective, they may have …

Changes In Mitochondrial Homeostasis And Redox Status In Astronauts Following Long Stays In Space, Hiroko P. Indo, Hideyuki J. Majima, Masahiro Terada, Shigeaki Suenaga, Kazuo Tomita, Shin Yamada, Akira Higashibata, Noriaki Ishioka, Takuro Kanekura, Ikuya Nonaka, Clare L. Hawkins, Michael J. Davies, Daret K. St Clair, Chiaki Mukai

Toxicology and Cancer Biology Faculty Publications

The effects of long-term exposure to extreme space conditions on astronauts were investigated by analyzing hair samples from ten astronauts who had spent six months on the International Space Station (ISS). Two samples were collected before, during and after their stays in the ISS; hereafter, referred to as Preflight, Inflight and Postflight, respectively. The ratios of mitochondrial (mt) to nuclear (n) DNA and mtRNA to nRNA were analyzed via quantitative PCR. The combined data of Preflight, Inflight and Postflight show a significant reduction in the mtDNA/nDNA in Inflight, and significant reductions in the mtRNA/nRNA ratios in both the Inflight and …

Dna Methylation Signatures Of Chronic Low-Grade Inflammation Are Associated With Complex Diseases, Symen Ligthart, Carola Marzi, Stella Aslibekyan, Michael M. Mendelson, Karen N. Conneely, Toshiko Tanaka, Elena Colicino, Lindsay L. Waite, Roby Joehanes, Weihua Guan, Jennifer A. Brody, Cathy Elks, Riccardo Marioni, Min A. Jhun, Golareh Agha, Jan Bressler, Cavin K. Ward-Caviness, Brian H. Chen, Tianxiao Huan, Kelly Bakulski, Elias L. Salfati, Whi-Empc Investigators, Giovanni Fiorito, Charge Epigenetics Of Coronary Heart Disease, Simone Wahl, Katharina Schramm, Jin Sha, Dena G. Hernandez, Allan C. Just, Jennifer A. Smith, Donna K. Arnett

Epidemiology and Environmental Health Faculty Publications

Background: Chronic low-grade inflammation reflects a subclinical immune response implicated in the pathogenesis of complex diseases. Identifying genetic loci where DNA methylation is associated with chronic low-grade inflammation may reveal novel pathways or therapeutic targets for inflammation.

Results: We performed a meta-analysis of epigenome-wide association studies (EWAS) of serum C-reactive protein (CRP), which is a sensitive marker of low-grade inflammation, in a large European population (n = 8863) and trans-ethnic replication in African Americans (n = 4111). We found differential methylation at 218 CpG sites to be associated with CRP (P < 1.15 × 10^–7) in the discovery panel …

Development, Validation And Application Of A New Fornix Template For Studies Of Aging And Preclinical Alzheimer's Disease, Christopher A. Brown, Nathan F. Johnson, Amelia J. Anderson-Mooney, Gregory A. Jicha, Leslie M. Shaw, John Q. Trojanowski, Linda J. Van Eldik, Frederick A. Schmitt, Charles D. Smith, Brian T. Gold

Physical Therapy Faculty Publications

We developed a merged younger-older adult template of the fornix and demonstrated its utility for studies of aging and preclinical Alzheimer's disease (AD). In Experiment 1, probabilistic tractography was used to reconstruct the fornix in younger and older adults and successful streamlines were then averaged to create a merged template in standard space. The new template includes the majority of the fornix from the hippocampal formation to the subcallosal region and the thalamus/hypothalamus. In Experiment 2, the merged template was validated as an appropriate measure for studies of aging, with comparisons against manual tracing measures indicating identical spatial coverage in …

Exploring Faculty Perceptions Of Student Incivility In Social Work: Results From A National Survey, Elizabeth A. Wahler, Karen Badger

Social Work Faculty Publications

The literature suggests that incivility is a growing problem in college classrooms, but few studies have examined incivility within social work programs. Using a national sample of social work instructors (n=327), this study examined faculty experiences with social work student incivility in both undergraduate and graduate education. Results showed that some behaviors often deemed disrespectful or inattentive do occur in social work classrooms, and they occur more frequently in undergraduate classes than graduate classes. Although rare, hostile behaviors were also reported by faculty. Discussion of these findings includes recommendations for addressing incivility in the context of preparing social work students …

Living With Traumatic Brain Injury In A Rural Setting: Supports And Barriers Across The Continuum Of Care, Anne L. Harrison, Elizabeth G. Hunter, Heather Thomas, Paige Bordy, Erin Stokes, Patrick H. Kitzman

Physical Therapy Faculty Publications

Purpose: Traumatic brain injury (TBI) is prevalent in Kentucky and comes with a high cost in care and quality of life for individuals and caregivers affected. Many people living with the condition of TBI have unmet needs. Research among people living with TBI in rural areas is limited. The purposes of this study were to (1) increase understanding of the lived experience of people with TBI and caregivers in rural regions of Kentucky across the continuum of their care and (2) provide their perspectives on barriers and facilitators of optimal function and well-being.

Methods: A qualitative descriptive interview study was …

Sarcopenic Obesity And Myosteatosis Are Associated With Higher Mortality In Patients With Cirrhosis, Aldo J. Montano-Loza, Paul Angulo, Judith Meza-Junco, Carla M. M. Prado, Michael B. Sawyer, Crystal Beaumont, Nina Esfandiari, Ming Ma, Vickie E. Baracos

Internal Medicine Faculty Publications

Background and aims Obesity is frequently associated with cirrhosis, and cirrhotic patients may develop simultaneous loss of skeletal muscle and gain of adipose tissue, culminating in the condition of sarcopenic obesity. Additionally, muscle depletion is characterized by both a reduction in muscle size and increased proportion of muscular fat, termed myosteatosis. In this study, we aimed to establish the frequency and clinical significance of sarcopenia, sarcopenic obesity and myosteatosis in cirrhotic patients.

Methods We analysed 678 patients with cirrhosis. Sarcopenia, sarcopenic obesity and myosteatosis were analysed by CT scan using the third lumbar vertebrae skeletal muscle and attenuation indexes, using …

Resveratrol Supplementation Confers Neuroprotection In Cortical Brain Tissue Of Nonhuman Primates Fed A High-Fat/Sucrose Diet, Michel Bernier, Devin Wahl, Ahmed Ali, Joanne Allard, Shakeela Faulkner, Artur Wnorowski, Mitesh Sanghvi, Ruin Moaddel, Irene Alfaras, Julie A. Mattison, Stefano Tarantini, Zsuzsanna Tucsek, Zoltan Ungvari, Anna Csiszar, Kevin J. Pearson, Rafael De Cabo

Pharmacology and Nutritional Sciences Faculty Publications

Previous studies have shown positive effects of long-term resveratrol (RSV) supplementation in preventing pancreatic beta cell dysfunction, arterial stiffening and metabolic decline induced by high-fat/high-sugar (HFS) diet in nonhuman primates. Here, the analysis was extended to examine whether RSV may reduce dietary stress toxicity in the cerebral cortex of the same cohort of treated animals. Middle-aged male rhesus monkeys were fed for 2 years with HFS alone or combined with RSV, after which whole-genome microarray analysis of cerebral cortex tissue was carried out along with ELISA, immunofluorescence, and biochemical analyses to examine markers of vascular health and inflammation in the …

Alzheimer's Biomarkers Are Correlated With Brain Connectivity In Older Adults Differentially During Resting And Task States, Yang Jiang, Haiqing Huang, Erin Abner, Lucas S. Broster, Gregory A. Jicha, Frederick A. Schmitt, Richard Kryscio, Anders H. Andersen, David Powell, Linda J. Van Eldik, Brian T. Gold, Peter T. Nelson, Charles D. Smith, Mingzhou Ding

Behavioral Science Faculty Publications

β-amyloid (Aβ) plaques and tau-related neurodegeneration are pathologic hallmarks of Alzheimer’s disease (AD). The utility of AD biomarkers, including those measured in cerebrospinal fluid (CSF), in predicting future AD risk and cognitive decline is still being refined. Here, we explored potential relationships between functional connectivity (FC) patterns within the default-mode network (DMN), age, CSF biomarkers (Aβ₄₂ and pTau₁₈₁), and cognitive status in older adults. Multiple measures of FC were explored, including a novel time series-based measure [total interdependence (TI)]. In our sample of 27 cognitively normal older adults, no significant associations were found between levels of Aβ …

Factors Associated With Unmet Needs Among African-American Dementia Care Providers, P. J. Desin, Allison M. Caban-Holt, Erin L. Abner, Linda J. Van Eldik, Frederick A. Schmitt

Sanders-Brown Center on Aging Faculty Publications

Racial and ethnic minorities currently comprise 20% of the U.S. population; in 2050, this figure is expected to rise to 42%. As a result, Alzheimer’s disease (AD), the 5th leading cause of death for people aged 65 and older, is likely to increase in these groups. Most dementia caregiving for these populations comes from family and friends, especially among families with lower socioeconomic status. A convenience sample of 30 African-American dementia caregivers was interviewed to determine unmet needs. Participants expressed a limited desire for formal services, such as support groups, legal advice, case management, and homemaker services. Instead, commonly expressed …

Color Your Plate: A Pilot Nutrition Education Intervention To Increase Fruit And Vegetable Intake Among Older Adults Participating In The Congregate Meal Site Program In Kentucky Senior Centers, Emily Dickens

Theses and Dissertations--Nutrition and Food Systems

The purpose of this study was to determine if the amount and variety of fruit and vegetable intake increased among community-dwelling older adults participating in Kentucky’s congregate meal site program following a series of educational nutrition lessons. A convenience sample (n=35) of community-dwelling older adults at two intervention (n=19) and two control (n=16) senior centers in central Kentucky participated in this quasi-experimental pre-post pilot study. Following the intervention there was a trend towards increased self-reported intake in the variety of fruit and vegetables among the intervention group (range:0.03±3.31 to 1.32±2.75 servings per week); a significant increase in the number of …

Chronic Pancreatitis, Pain, And Anxiety In An Alcohol And High Fat Mouse Model, Tiffanie Clinkinbeard

Theses and Dissertations--Gerontology

Homeodynamic space (HDS) shrinks as vulnerability increases with aging and repeated damage to the cells. HDS is lost in alcoholic pancreatitis patients due to overconsumption of alcohol, smoking, and high fat diets. Etiologically relevant animal models for study of chronic pancreatitis (CP) are needed. In order to begin filling this gap a central purpose of this dissertation research was to examine relationships between the alcohol and high fat diet (AHF) and pancreatitis with attention to hypersensitivity and anxiety-like behaviors. The AHF diet induced pancreatitis described here etiologically mimics human risk factors of AHF consumption for advancement to alcoholic CP.

In …

Improvement Of Under-Represented Minority Individuals In The Healthcare Field Of Communication Sciences And Disorders, Allison Webb

Lewis Honors College Capstone Collection

Individuals from under-represented minority backgrounds are scarce within healthcare careers. Former research has suggested that this lack of diversity begins at the undergraduate level. This proposal discusses a potential solution to this problem occurring at the University of Kentucky and other colleges across the United States. Suggested intervention targeted diverse populations, connected students with faculty and staff, and provided shadowing resources for individuals from under-represented minority backgrounds. Based on research and current diversity statistics, populations of individuals from diverse backgrounds are expected to increase within the Communication Sciences and Disorders program. Demographic information for the fall 2016 semester will become …

The Influence Of Time On Food Intake Patterns: Age, Period, Cohort Differences, Karina L. Christopher

Theses and Dissertations--Gerontology

The impact of diet and exercise on overall health and chronic disease risk has been well examined. Multiple studies show that Americans eat more now than they did fifty years ago. What isn’t known is how much of an impact time has on food intake patterns of individuals in terms of different age groups, historic periods of structural influences, and birth cohorts.

In order to identify the impact of time on food intake this study examined time from multiple perspectives. The first aim of this study was to determine food intake patterns among age groups across five time periods using …

It Is All About (U)Biquitin: Role Of Altered Ubiquitin-Proteasome System And Uchl1 In Alzheimer Disease, Antonella Tramutola, Fabio Di Domenico, Eugenio Barone, Marzia Perluigi, D. Allan Butterfield

Chemistry Faculty Publications

Free radical-mediated damage to macromolecules and the resulting oxidative modification of different cellular components are a common feature of aging, and this process becomes much more pronounced in age-associated pathologies, including Alzheimer disease (AD). In particular, proteins are particularly sensitive to oxidative stress-induced damage and these irreversible modifications lead to the alteration of protein structure and function. In order to maintain cell homeostasis, these oxidized/damaged proteins have to be removed in order to prevent their toxic accumulation. It is generally accepted that the age-related accumulation of “aberrant” proteins results from both the increased occurrence of damage and the decreased efficiency …

Posttraumatic Growth Among Older Adults With Late-Life Cancer Diagnoses, Aasha I. Hoogland

Theses and Dissertations--Gerontology

Gerontological scholarship has often focused on the ways older adults deteriorate or decline with time, but it is plausible that positive change continues into and throughout old age. Late-life psychosocial growth may even be facilitated by a life-altering event such as a cancer diagnosis, a phenomenon broadly termed posttraumatic growth (PTG). PTG has been examined in a variety of general population samples, but there is a noticeable lack of research on PTG that focuses on older adults—a population for whom cancer diagnoses are particularly prevalent. Using a mixed methods design, this dissertation was designed to advance our understanding of PTG …

The Role Of Capillaries In The Lesser Ailments Of Old Age And In Alzheimer's Disease And Vascular Dementia: The Potential Of Pro-Therapeutic Angiogenesis, Charles T. Ambrose

Microbiology, Immunology, and Molecular Genetics Faculty Publications

Apart from chronic diseases (arthritis, diabetes, etc.), old age is generally characterized by three lesser ailments: muscle weakness, minor memory lapses, and cold intolerance. This trio of complaints may have a common, underlying cause, namely, the age-associated reduced microcirculation in muscles, brain, skin, and elsewhere in the body. The Angiogenesis Hypothesis proposes that old age is in part a deficiency disease due to the decline in angiogenic (AG) factors, resulting in a reduced capillary density (CD) throughout the body. Over fifty published papers document waning levels of AG factors and/or decreased CD in various organ systems of aged animals and …

“Exchange Northern Ky”: An Evidence-Based Needle & Syringe Exchange Program Serving The Northern Kentucky Area Development District, Amanda Hunter

Theses and Dissertations--Public Health (M.P.H. & Dr.P.H.)

Intravenous drug users (IDUs) account for nearly 16% of new HIV infections in the United States and almost one half (48%) of newly reported acute hepatitis C virus (HCV) infections have been found to be IDU related.1 Within the Northern Kentucky Area Development District, hepatitis C infections have soared with an incidence of more than 1,000 newly reported cases during 2015 alone.⁴ Rigorous scientific evidence complied by the U.S. Department of Health & Human Services has indicated that one of the most unique and effective strategies for the curtailing HIV incidence among IDUs is by ensuring users’ access to …

Across The States: Do Long Term Services & Supports Policies Affect The Number Of Nursing Home Residents With Low-Care Needs?, Mary Otis

MPA/MPP/MPFM Capstone Projects

Long term care for the elderly has been steadily gaining salience in the public policy realm for many years. The federal government has been vigorously studying and exploring solutions, including the Centers for Medicare and Medicaid Services’ (CMS) efforts to expand access to home and community-based services (HCBS) in order to reduce dependence on institutional care. These federal efforts include various incentive programs and policies recently offered under the Affordable Care Act. However, data on the strength of each state’s long term services and supports system has not been easily accessible until recently. The report “Raising Expectations: A State Scorecard …

Determinants Of An Individual's Suicide Intention In South Korea, Nam Keun Choi

MPA/MPP/MPFM Capstone Projects

This study has examined a variety of variables that influence an individual’ s suicide intention, and analyzed the impact of these variables. The data are from the 2014 wave of the Korea Welfare Panel Survey (KoWePS). I analyze data on 13,687 out of 17,134 survey participants.

The dependent variable of my study is suicide intention such as suicidal thoughts and behaviors. The independent variables are classified into three categories: socio-demographic, psychological and mental health. Socio-demographic variables are gender, age, education, marital status, and income. Psychological variables are self-esteem, satisfaction with life, and religion. Mental health variables are depression, alcohol use, …

Reducing Depression Among Older Adults: Informal Helping Versus Volunteering, Salih Salihoglu

MPA/MPP/MPFM Capstone Projects

Volunteerism is an unpaid productive activity that is exercised within a formal organization to benefit others that are not part of family or friends (Musick & Wilson, 2008). Alternatively, individuals could engage in informal helping which would be an activity undertaken outside a formal, structured organization. This paper addresses whether informal helping is also effective in reducing depression for older adults alongside volunteering. I hypothesize that informal helping is effective in reducing depression only when exercised for short durations. On the other hand, I hypothesize that volunteerism is only effective when exercised for long periods of time. I try to …

The Effect Of Nurse Dose On Breastfeeding Exclusivity - A Patient Level Analysis, Gwen Moreland

DNP Projects

Background: Breastfeeding is strongly associated with health benefits for children and their mothers. Despite this knowledge, breastfeeding rates in the United States have increased only slightly. Current research examines the relationship between nurse characteristics and patient outcomes in adult intensive care and acute care settings. To date there is very limited research examining nurse variables and outcomes in women and children, and very little knowledge regarding the characteristics of the nurse in relation to patient’s breastfeeding success.

Purpose: The purpose of this practice inquiry project was to evaluate the relationship between the attributes of nurse dose and the immediacy and …

Do Call-Backs Help Patients Post Stroke, Taylor E. Clark

DNP Projects

Aim and Objective: To determine if the implementation of a post-discharge call-back intervention for patients discharged home from the hospital after stroke was associated with a decrease in 30-day readmissions and improved patient satisfaction.

Background: Stroke is a leading cause of death and disability in the United States (American Stroke Association, 2015). Several studies have examined various post-discharge interventions, including a call to the patient and/or family after their return home, to determine the benefit to patients, if any (Zolfaghari, Mousavifar, Pedram & Haghani (2012). Understanding and anticipating patient needs and removing barriers post-stroke may decrease readmission rates …

Need Assessment For Early Identification Of Delirium In Post-Operative Patients In Intensive Care Unit, Raji Rajan

DNP Projects

Background: Delirium is an acute dysfunction of cognition, memory, and attention resulting in changes in perception, mood, and activity. Delirium is associated with increased length of hospital stay, prolonged mechanical ventilator days, increased mortality rate, and a higher number of discharge disposals to rehabilitation centers. The purpose of the study is to assess the current practice in delirium assessment and management strategies among postoperative patients in Intensive Care Units.

Methods: A retrospective medical record review was conducted in postoperative patients admitted to Norton Women’s and Kosair Children Hospital between January 2015 and December 2015. Postoperative delirium was diagnosed in compliance …