Medicine and Health Sciences Commons^™

Development Of A Functional Testing Platform For The Sensory Segment Of The Neuromuscular Reflex Arc, Alisha Colon

Electronic Theses and Dissertations

Investigations of human biology and disease have been hindered by the use of animal models. The information obtained from such studies often results in clinically irrelevant results and drug trial failures. Additionally, several governing bodies have been formulating legislation to move away from animal models and toward more ethical and efficient testing platforms for drug discovery and cosmetic research. As an answer to these issues, "body-on-a-chip" systems have been a rapidly developing field which easily recapitulates in vivo functionality, providing a more relevant, repeatable, and ethical testing platform to better predict biology. These systems can be used as human-based testing …

Characterization Of Protein Involved In Hemolysis Expressed By Sneathia Amnii, A Pathogen Of The Female Urogenital Tract, Gabriella Gentile, Lizette Carrasco, Amy Stanford, Kimberly Jefferson

Graduate Research Posters

Sneathia amnii is a poorly characterized gram-negative anaerobe that commonly colonizes the vagina. It has been linked to many obstetric disorders, including preterm labor, preeclampsia, and chorioamnionitis. S. amnii lyses human red blood cells, and we aimed to identify the hemolysin. We identified two genes that appear to encode transporter and effector components of a two-partner secretion system. The putative effector, which we refer to as SaFHA, contains a domain with amino acid similarity to the filamentous hemagglutinin (FHA) of Bordetella pertussis and its predicted structure suggests it may form a transmembrane channel or pore. Thus, we hypothesized that SaFHA …

Evaluation Of A New Trauma-Related Drinking To Cope Measure: Latent Structure And Heritability, Sage E. Hawn, Steven H. Aggen, Danielle Dick, Ananda B. Amstadter Phd

Graduate Research Posters

Posttraumatic stress disorder (PTSD) and alcohol use disorder (AUD) commonly co-occur, share latent genetic risk, and are associated with many negative public health outcomes. Via a self-medication framework, trauma-related drinking to cope (TRD), an unexplored phenotype to date, may help explain why these two disorders co-occur, thus serving as an essential target for treatment and prevention efforts. This study sought to create a novel measure of TRD and to investigate its indirect influences on the association between PTSD and AUD, as well as its potential shared molecular genetic risk with PTSD in a genetically-informative study of college students. A sample …

Impact Of Socialization In Elderly Public-Housing Residents, Taylor M. Wilkerson, Schanea Ward, Amy Popovich, Pamela Parsons, Faika Zanjani

Graduate Research Posters

Older adults who experience social isolation have higher rates of mortality relative to their counterparts. Social interactions are an important way to combat this isolation. This research aims to better understand how social isolation in older adults living in low-income households in Richmond, Virginia (RVA) is related to their economic, physical, and psychological health status. As part of the iCubed Health and Wellness Aging Core and in collaboration with the Richmond Memorial: East End Housing Coalition for Older Adults, older adults from a selected public housing unit (n=28) self-reported their financial status, experiences with physical and psycho-social health, and feelings …

The Impact Of Posttraumatic Stress Disorder On Peripheral Vascular Function, Jennifer B. Weggen, Kevin P. Decker, Ryan S. Garten

Graduate Research Posters

The physiological manifestations of posttraumatic stress disorder (PTSD) have been associated with an increase in risk of cardiovascular disease (CVD) independent of negative lifestyle factors. Peripheral vascular dysfunction may be a mechanism by which PTSD increases CVD risk via increases in oxidative stress, inflammation, and/or sympathetic nervous system activity. PURPOSE: This study sought to examine peripheral vascular function in those with PTSD compared to age-matched controls. METHODS: Eight individuals with PTSD (5 women, 3 men; age 22 ± 2 years), and sixteen healthy controls (CON; 10 women, 6 men, 23 ± 2 years), participated in the study. Leg vascular function …

The Role Of Nrf2 Signalling In Cell Proliferation And Tumorigenesis Of Chromium Transformed Human Bronchial Epithelial Cells, Marco Antonio De Freitas Clementino

Theses and Dissertations--Toxicology and Cancer Biology

Hexavalent Chromium (Cr(VI) induces malignant cell transformation in normal bronchial epithelial (BEAS-2B) cells. Cr(VI)-transformed cells exhibit increased level of antioxidants, are resistant to apoptosis, and are tumorigenic. RNAseq analysis in Cr(VI)-transformed cells showed that expression of transcripts associated with mitochondrial oxidative phosphorylation is reduced, and the expression of transcripts associated with pentose phosphate pathway, glycolysis, and glutaminolysis are increased. Sirtuin-3 (SIRT3) regulates mitochondrial adaptive response to stress, such as metabolic reprogramming and antioxidant defense mechanisms. SIRT3 was upregulated and it positively regulated mitochondrial oxidative phosphorylation in Cr(VI)-transformed cells. Our results suggests that SIRT3 plays an important role in mitophagy deficiency …

Knowledge, Attitudes, And Use Of Complementary And Alternative Medicine (Cam) Among Nurses, Nursing Assistants, And Unit Secretaries, Kim Dimaunahan, Sandy Martir, Amber Norman, Trisha Saul

Books, Presentations, Posters, Etc.

No abstract provided.

Becoming A Nurse, David Morera Costa

A with Honors Projects

This A with Honors essay walks the reader through the nurse career ladder, the educational requirements of each step of the ladder and associated duties. An assessment of the current job market is presented, along with the future prospects for the profession. The possible barriers to entry into the nurse job market and recommendations on how to overcome these barriers are presented. The essay concludes with a summary of the most important concepts.

Daily Factors Driving Daily Substance Use And Chronic Pain Among Older Adults With Hiv: A Study Using Ecological Momentary Assessment, Alexis Kuerbis, M. Carrington Reid, Jordan Lake, Suzanne Glasner-Edwards, Jessica Jenkins, Diana Liao, Jury Candelario, Alison A. Moore

Publications and Research

Background: Adults 50 and older make up approximately 50% of persons living with HIV. Multiple co-morbidities are common among this group, including chronic pain and substance abuse, yet little is known about the daily factors that either enhance or inhibit these experiences or behaviors. This study explored daily drivers of substance use, pain, and relief from pain among older adults living with HIV utilizing ecological momentary assessment (EMA). Method: Participants (N=55), ages 49–71, completed seven consecutive days of daily EMA online surveys prior to treatment initiation within a randomized controlled trial. Multilevel modeling tested predictors of pain, substance use, and …

Maintaining Lumbar Spine Stability: A Study Of The Specific And Combined Effects Of Abdominal Activation And Lumbosacral Orthosis On Lumbar Intrinsic Stiffness, Christian Larivière, Jean-Alexandre Boucher, Hakim Mecheri, Daniel Ludvig

Études primaires

Abstract

Background:

Two potential interventions for enhancing lumbar stability are to actively increase abdominal muscle activity, either through the abdominal drawing-in maneuver (ADIM) or bracing, and passively increase lumbar stiffness using a lumbosacral orthosis (LSO).

Objective:

To compare the increase in lumbar stiffness after 2 active interventions (ADIM versus bracing) and 1 passive intervention (LSO), and to evaluate the combined effect of active (abdominal bracing) and passive interventions.

Methods:

In this experimental and comparative study, lumbar stiffness, a surrogate measure of lumbar stability, was estimated in 25 healthy individuals during 7 trunk perturbation conditions: (1) control, (2) ADIM, (3) bracing …

Effects Of Different Dual Tasking Modalities On The Standing Balance Performance Of College Students, John Patrick Manning

Graduate Research Theses & Dissertations

Center of pressure (CoP) and related-metrics are widely accepted indicators of balance performance. Traditional indices of balance performance (e.g. sway area) have been seen as incapable of fully characterizing CoP dynamics, therefore newer measures have been used in contemporary literature to characterize regularity, complexity, and dimensionality of CoP signals. A popular method of increasing standing task difficulty is through the addition of a cognitive task, referred to as dual-task. PURPOSE: The present study sought to investigate the potential of a hierarchical attentional difficulty within the dual-task paradigm and to propose way to order those difficulties by examining differences in static …

Codon-Specific Translation By M1g37 Methylation Of Trna, Ya-Ming Hou, Isao Masuda, Howard Gamper

Department of Biochemistry and Molecular Biology Faculty Papers

Although the genetic code is degenerate, synonymous codons for the same amino acid are not translated equally. Codon-specific translation is important for controlling gene expression and determining the proteome of a cell. At the molecular level, codon-specific translation is regulated by post-transcriptional epigenetic modifications of tRNA primarily at the wobble position 34 and at position 37 on the 3′-side of the anticodon. Modifications at these positions determine the quality of codon-anticodon pairing and the speed of translation on the ribosome. Different modifications operate in distinct mechanisms of codon-specific translation, generating a diversity of regulation that is previously unanticipated. Here we …

The Risk For Developing Eating Disorders Among Indivdiuals With Diabetes, Nicole Havlik

Graduate Research Theses & Dissertations

Objective: The objective and purpose of this research was to determine if individuals with type 1 and type 2 diabetes are at risk for developing eating disorders. Currently, there is a gap in literature on the topic of eating disorders and diabetes. Further, there is little research on those with type 2 diabetes and their risk for eating disorder development. Management of diabetes and eating disorder treatment contradict each other. Therefore, there is a need to understand the risk involved in the treatment of diabetes in order to prevent eating disorder development.

Methods: The current study used a Likert-type scale …

Impact Of Concussion And Orthopedic Injuries On Physical Activity And Quality Of Life After Sport Retirement, Makenna Hancock

Electronic Theses and Dissertations

CONTEXT: Concussions and orthopedic injuries represent a significant risk related to participation in collegiate athletics. These injuries can create significant long-term impairments and functional limitations which may also decrease former athletes’ quality of life (QoL) and inhibit their ability to engage in physical activity. OBJECTIVE: To investigate QoL and physical activity levels of former collegiate athletes with a history of concussion and orthopedic injury, orthopedic injury only, and healthy controls. DESIGN: Descriptive, experimental study.
SETTING: Daily life as former National Collegiate Athletic Association Division I collegiate athlete.
PARTICIPANTS: Former Division I collegiate athletes competing in football, women’s soccer, baseball, softball, …

Salivary Screening For Selenomonas Noxia In The Oral Cavity Of Pediatric Patients, Rachelle Davidowitz, Katherine M. Howard, Karl Kingsley

School of Medicine Faculty Research

The oral microbiome may be affected by patient medications, disease conditions and systemic disorders. Selenomonas noxia is an anaerobic, motile, non spore-forming, gram-negative rod that has been repeatedly associated with periodontal disease and other disorders, including obesity. Based upon the paucity of evidence regarding oral prevalence, the objective of was to evaluate S. noxia prevalence by sampling saliva from the oral cavity to screen for this pathogen. Using an existing saliva repository, DNA was isolated and screened using quantitative real-time polymerase chain reaction (qPCR). Demographic analysis of study samples and qPCR results was also performed. Approximately half of the samples …

Tanzanian Mothers’ Cultural Beliefs And Misinformation Regarding The Reasons For Their Cesarean Sections, Victor Mathias, Eleanor Holroyd, Grace Edwards

School of Nursing & Midwifery, East Africa

Background: In Tanzania, cesarean section (CS) rates have been steadily increasing, yet little is known about mothers’ understanding of the medical rationale for their CSs.

Aim: To identify mothers’ cultural understandings of the rationale for their CSs.

Methods: Design: A qualitative descriptive design was employed.

Setting: A government hospital in the western region in Tanzania.

Participants: A total of 117 mothers were interviewed using convenience sampling post CS.

Findings: Forty percent of the mothers were younger than 18 years, with more than 50% having had five or more live babies. Among multigravida women, 40.2% had had one or more previous …

Missed Nursing Care In Newborn Units: A Cross-Sectional Direct Observational Study, David Gathara, George Serem, Georgina A. V. Murphy, Alfred Obengo, Edna Tallam, Debra Jackson, Sharon Brownie, Mike English

School of Nursing & Midwifery, East Africa

Background: Improved hospital care is needed to reduce newborn mortality in low/middle-income countries (LMIC). Nurses are essential to the delivery of safe and effective care, but nurse shortages and high patient workloads may result in missed care. We aimed to examine nursing care delivered to sick newborns and identify missed care using direct observational methods.

Methods: A cross-sectional study using directobservational methods for 216 newborns admitted in six health facilities in Nairobi, Kenya, was used to determine which tasks were completed. We report the frequency of tasks done and develop a nursing care index (NCI), an unweighted summary score of …

Visual Prognosis After Explantation Of Small-Aperture Corneal Inlays In Presbyopic Eyes: A Case Series, Majid Moshirfar, David F. Skanchy, David J. Rosen, Madeline B. Heiland, Harry Y. Liu, Benjamin Buckner, Aaron T. Gomez, Yasmyne C. Ronquillo, Tim Melton, Phillip C. Hoopes

School of Medicine Publications

The purpose of this study was to report visual prognosis after explantation of a small-aperture corneal inlay used for the treatment of presbyopia. This is a retrospective case series conducted at a single site in Draper, Utah, USA (Hoopes Vision). Medical records of 176 patients who had received a small-aperture corneal inlay (KAMRA™, AcuFocus Inc., Irvine, CA, USA) were reviewed. Patients who had undergone explantation of the device were identified. Uncorrected distance visual acuity (UDVA), uncorrected near visual acuity (UNVA), corrected distance visual acuity (CDVA), and manifest refraction spherical equivalent (MRSE) were measured pre-implantation, post-implantation, pre-explantation, and post-explantation of the …

Racial Variations Of The Injection Route Of Administration Among Injection Drug Users In The United States: A Comparative Trend Analysis, Philip Danquah

Graduate & Professional Student Association Research Forum

The objective of this research is to address the variations in the injection route of administration among racial groups who are injection drug users in the United States and how that contributes to their vulnerability to HIV/AIDS behaviors and hospital admissions.

Chronotropic Intolerance: An Overlooked Determinant Of Symptoms And Activity Limitation In Myalgic Encephalomyelitis/Chronic Fatigue Syndrome?, Todd E. Davenport, Mary Lehnen, Staci R. Stevens, J. Mark Vanness, Jared Stevens, Christopher R. Snell

All Faculty Scholarship

Post-exertional malaise (PEM) is the hallmark clinical feature of myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS). PEM involves a constellation of substantially disabling signs and symptoms that occur in response to physical, mental, emotional, and spiritual over-exertion. Because PEM occurs in response to over-exertion, physiological measurements obtained during standardized exertional paradigms hold promise to contribute greatly to our understanding of the cardiovascular, pulmonary, and metabolic states underlying PEM. In turn, information from standardized exertional paradigms can inform patho-etiologic studies and analeptic management strategies in people with ME/CFS. Several studies have been published that describe physiologic responses to exercise in people with ME/CFS, …

The Health Care Systems Of The United States And Spain: A Comparison, Tasia Harman

Senior Honors Theses

When it comes to understanding and improving the United States health care system, comparison and analysis with the health care system of another country provides valuable insights. In this thesis, the United States’ health care system was compared to that of Spain, as the health care system of Spain is generally ranked well above the United States in terms of quality, function, and cost. In the comparison, information such as the health of the population, the quality of health care received, accessibility, and health care costs indicate the state of the health care systems and their ability to function well …

The Investigation Of Strongyloides Stercoralis Seroprevalence In Immunosupressed Patients In Turkey, Fi̇li̇z Kaya, Ahmet Çağkan İnkaya, Ali̇ İhsan Ertenli̇, Osman Abbasoğlu, Sercan Aksoy, Yakut Akyön Yilmaz, Si̇bel Ergüven

Turkish Journal of Medical Sciences

In immunosuppressed patients, strongyloidiasis can be lifethreatening because of hyperinfection or dissemination. Therefore, diagnosis of S. stercoralis is important in immunosuppressed patients with chronic strongyloidiasis. In this study, our objective was to investigate the presence of S. stercoralis antibodies by an ELISA method in immunosuppressed patients. Materials and methods: A total of 100 immunosuppressed patients' sera were included in the study. Forty-two of the patients were receiving immunosuppressive therapies for cancer or being treated for hematopoietic malignancies, 38 of the patients were receiving immunosuppressive drugs for rheumatic diseases, 14 were receiving immunosuppressive therapies for liver transplantation. Two of the patients …

The Role Of Ifih1 Gene Rs1990760 And Rs2111485 Single-Nucleotide Polymorphisms In Generalized Vitiligo Predisposition, Duru Onan, Ahu Yorulmaz, Fati̇h Süheyl Ezgü, Kadi̇r Mutlu Hayran, Seray Külcü Çakmak, Refi̇ka Ferda Artüz, Başak Yalçin

Turkish Journal of Medical Sciences

Interferon-induced helicase (IFIH1) is a gene locus that has been recently defined as a candidate for susceptibility to generalized vitiligo (GV). The objectives of this study were to assess the association of IFIH1 gene, rs2111485, and rs1990760 single-nucleotide polymorphisms (SNP) with susceptibility to GV and the autoimmune diseases accompanying GV.Materials and methods: We prospectively studied GV patients and frequency-matched healthy controls by age and sex. The genotypes of the participants were determined for rs1990760 and rs2111485 SNPs of IFIH1. Dominant, recessive, and additive models were evaluated for each SNP adjusted for age and sex. Results: The patients and their controls …

External Validation Of Anastomotic Leakage Risk Analysis System In Patients Who Underwent Colorectal Resection, Sadetti̇n Er, Sabri̇ Özden, Faruk Koca, Bariş Doğu Yildiz, Bülent Cavi̇t Yüksel, Mesut Tez

Turkish Journal of Medical Sciences

Background/aim: One of the most feared complications after colon resection for carcinoma is anastomotic leakage. Prediction of anastomotic leakage can alter pre- and perioperative management of patients. This study validates an anastomotic leakage prediction system. Materials and methods: Ninety-five patients who underwent colonic resection between 1 January 2016 and 30 January 2017 were included in the study. Patient records and electronic charting system data were used to calculate anastomotic leakage risk on the http://www.anastomoticleak.com/ website.Results: Fifty-six (58.9%) patients were male and thirty-nine (41.1%) were female. The mean age was 61.7 (min: 33, max: 90). Six (6.3%) patients had anastomotic leakage. …

Factors Associated With Glomerular Filtration Rate Variation In Primary Hyperparathyroidism After Parathyroidectomy, Mustafa Çalişkan, Muhammed Kizilgül, Selvi̇han Beysel, Beki̇r Uçan, Fati̇h Alper Akcan, Mümtaz Takir, Mustafa Özbek, Erman Çakal

Turkish Journal of Medical Sciences

Background/aim: Prolonged hypercalcemia impairs renal function, and a reduced glomerular filtration rate (GFR) is typical in advanced primary hyperparathyroidism (PHPT). There are scarce data related to predictors of renal impairment in patients with PHPT. Hence, we aimed to evaluate changes in kidney function in PHPT patients after parathyroidectomy (PTX) and identify factors associated with GFR variation in these patients.Materials and methods: One hundred and twenty-five patients with PHPT who underwent surgery between 2012 and 2014 were enrolled in the study. Patients were divided into two groups according to GFR values: patients whose GFR was lower than 60 mL/min/1.73 m2 and …

Mild To Moderate Proteinuria Is A Heralding Sign For Acute Kidney Injury And Mortality For Intensive Care Unit Patients, Haci Hasan Yeter, Tolga Yildirim, Nesri̇n Damla Eyüpoğlu, Tural Pasayev, Abdullah Tarik Aslan, Sila Çeti̇k, Ömer Faruk Akçay, Arzu Topeli̇ İski̇t, Mustafa Arici

Turkish Journal of Medical Sciences

Background/aim: Lack of early predictors of acute kidney injury is currently delaying timely diagnosis.This study was done to evaluate the relationship between mild to moderate proteinuria and incidence of acute kidney injury (AKI) and 28-day mortality in intensive care unit (ICU) patients. Material and methods: This observational, retrospective study was conducted in the internal medicine ICU. A total of 796 patients were screened and 525 patients were used for this analysis. Proteinuria was measured by urine dipstick test. AKI was defined according to the Kidney Disease: Improving Global Outcomes (KDIGO) guidelines. Results: Patients with dipstick urine protein positivity on admission …

Elevated Neutrophil To Lymphocyte Ratio As An Indicator Of Secondary Erythema Nodosum, A Retrospective Observational Study, Yildiz Hayran, Ayşe Öktem, Emi̇ne Buket Şahi̇n, Pinar İncel Uysal, Nuran Alli, Başak Yalçin

Turkish Journal of Medical Sciences

Background/aim: Erythema nodosum (EN) is an inflammatory disorder of subcutaneous tissue. Although etiopathogenesis of the disease is unknown, many predisposing factors such as infections, systemic disease, and drugs have been identified. Neutrophil to lymphocyte ratio (NLR) has been shown to be a novel inflammatory marker in many dermatological diseases. The aim of our study is to investigate NLR in EN patients and evaluate its relation to the underlying cause of the disease.Materials and methods: Between 2014 and 2018, clinical and laboratory data of 395 patients diagnosed with EN and 395 controls were extracted from patient files. EN patients were grouped …

In Vitro Combination Of Tigecycline With Other Antibiotics In Stenotrophomonas Maltophilia Isolates, Di̇lek Karamanlioğlu, Murat Di̇zbay

Turkish Journal of Medical Sciences

Background/aim: The aim of this study was to determine the usefulness of tigecycline in combination treatment of Stenotrophomonas maltophilia infections by evaluating the in vitro synergistic effects of tigecycline with various antibiotics using the E-test method.Materials and methods: Synergy testing by E-test was performed with various antibiotic combinations in 10 S. maltophilia isolates identified as a cause of infection. The antibiotics used in the study included tigecycline (TGC), cefoperazone-sulbactam (CPS), ceftazidime (TZ), levofloxacin (LEV), and trimethoprim-sulfamethoxazole (cotrimoxazole)(TS). Four different combinations (TGC-CPS, TGC-TZ, TGC-LEV, TGC-TS) were studied with the E-test synergy method. Results: S. maltophilia isolates were found to have the …

Effects Of Different Percentages Of Body Weight-Supported Treadmill Training In Parkinson's Disease: A Double-Blind Randomized Controlled Trial, Tuğba Atan, Özden Özyemi̇şci̇ Taşkiran, Ayşe Bora Tokçaer, Gülçi̇n Kaymak Karataş, Asli Karakuş Çalişkan, Belgi̇n Karaoğlan

Turkish Journal of Medical Sciences

Background/aim: Body weight-supported treadmill training (BWSTT) might have greater effects than conventional treadmill training (TT) in neurological diseases such as Parkinson's disease (PD). The aim of this study was to evaluate the effects of different percentages of BWSTT on gait, balance, quality of life, and fatigue in PD.Materials and methods: Thirty-five patients with moderate to advanced PD were randomized into three BWSTT groups according to the supported percentage of body weight: 0% BWSTT (control group; unsupported TT), 10% BWSTT, or 20% BWSTT. Five patients were excluded due to early discharge and 30 patients completed BWSTT sessions lasting 30 min, 5 …

Evaluation Of The Correlation Between Quantitative Measurement Of The Foveal Avascular Zone And Retinal Vessel Density And Outer Retinal Disruptions In Diabetic Patients, Nagi̇han Uğurlu, Ayşe Güzi̇n Taşlipinar Uzel, Ahmet Şengün, Fatma Yülek, Demet Özdaş, Abbas Ali̇ Tam, Reyhan Ersoy, Beki̇r Çakir

Turkish Journal of Medical Sciences

Background/aim: The aim of the current study was to evaluate the correlation between the integrity of the outer retinal layers on optical coherence tomography (OCT) and objective parameters of retinal microvascular perfusion on optical coherence tomography angiography (OCTA).Materials and methods: A total of 105 eyes of 54 diabetic patients were included in the study. Integrity of the outer retinal layers including the external limiting membrane (ELM), ellipsoid zone (EZ), and interdigitation zone (IZ) was assessed by spectral-domain optical coherence tomography. The foveal avascular zone (FAZ) area and vessel density (VD) measurements in the superficial capillary plexus (SCP) and deep capillary …