Medicine and Health Sciences Commons^™

E3 Ligase Identified By Differential Display (Edd) Enhances Cell Survival And Cisplatin Resistance In Epithelial Ovarian Cancer And Oral Squamous Cell Carcinoma, Amber Thompson Bradley

MUSC Theses and Dissertations

EDD (E3-ubiquitin ligase identified by Differential Display) is an E3 ubiquitin ligase that is overexpressed in ovarian cancer, but is rare in benign and borderline tumors. EDD is also overexpressed in recurrent, platinum-resistant ovarian cancers and is associated with a two-fold increased risk of disease recurrence and death in ovarian cancer patients, suggesting a role in tumor survival and/or platinum resistance. EDD knockdown by siRNA induced apoptosis in A2780ip2, OVCAR5, and ES-2 ovarian cancer cells, correlating with a loss of the anti-apoptotic protein Mcl-1 through a GSK-3β-independent mechanism. Transient knockdown of EDD or Mcl-1 induced comparable levels of apoptosis in …

Serotonin Receptor 2-Induced Mitochondrial Biogenesis As A Therapeutic Strategy For The Treatment Of Multiple Pathologies, Jennifer Linton Harmon

MUSC Theses and Dissertations

Mitochondrial dysfunction is a common pathophysiological feature in many acute and chronic organ injury states. Often, this mitochondrial dysfunction is sub-lethal and persistent and is a major contributor to loss of cellular function in the absence of cell death. Mitochondrial biogenesis (MB) is the process by which new mitochondria are created, and studies have demonstrated that pharmacological induction of MB can reverse loss of mitochondrial content, improve mitochondrial function and reduce measures of acute organ injury. Several classes of pharmacological agents that induce MB through divergent mechanisms have been identified. Previous studies demonstrated that 2,5-Dimethoxy-4-iodoamphetamine (DOI), a potent but non-specific …

A Review Of Common Drug-Drug And Food-Drug Interactions Associated With Cardiovascular Medications, Raymond Kho, Sarah Kim, Stacy Lee, Laura Tsu

Pharmacy Faculty Articles and Research

This home-study CPE activity has been developed to educate pharmacists on the common drug-drug and food-drug interactions associated with cardiovascular medications.

Simultaneous Bactericidal And Osteogenic Effect Of Nanoparticulate Calcium Phosphate Powders Loaded With Clindamycin On Osteoblasts Infected With Staphylococcus Aureus, Vuk Uskoković, Tejal A. Dasai

Pharmacy Faculty Articles and Research

S aureus internalized by bone cells and shielded from the immune system provides a reservoir of bacteria in recurring osteomyelitis. Its targeting by the antibiotic therapy may thus be more relevant for treating chronic bone infection than eliminating only the pathogens colonizing the bone matrix. Assessed was the combined osteogenic and antibacterial effect of clindamycinloaded calcium phosphate nanoparticles of different monophasic compositions on co-cultures comprising osteoblasts infected with S aureus. Antibiotic-carrying particles were internalized by osteoblasts and minimized the concentration of intracellular bacteria. In vitro treatments of the infected cells, however, could not prevent cell necrosis due to the …

Nanoparticulate Drug Delivery Platforms For Advancing Bone Infection Therapies, Vuk Uskoković, Tejal A. Dasai

Pharmacy Faculty Articles and Research

Introduction—The ongoing surge of resistance of bacterial pathogens to antibiotic therapies and the consistently aging median member of the human race signal an impending increase in the incidence of chronic bone infection. Nanotechnological platforms for local and sustained delivery of therapeutics hold the greatest potential for providing minimally invasive and maximally regenerative therapies for this rare but persistent condition.

Areas covered—Shortcomings of the clinically available treatment options, including poly(methyl methacrylate) beads and calcium sulfate cements, are discussed and their transcending using calcium-phosphate/polymeric nanoparticulate composites is foreseen. Bone is a composite wherein the weakness of each component alone is …

Discovery Of Pharmacological Compounds That Stimulate Renal Mitochondrial Biogenesis And Restore Kidney Function, Sean Robert Jesinkey

MUSC Theses and Dissertations

Dysfunctional mitochondria are a primary pathological consequence of acute kidney injury (AKI). Mitochondrial homeostasis is disrupted up to 144 h after ischemia-reperfusion (I/R) induced-AKI in the renal cortical tissue of mice. Stimulation of mitochondrial biogenesis in renal cells after oxidant injury restores mitochondrial function. The primary goals of this project were to identify novel pharmacological compounds capable of inducing mitochondrial biogenesis in the renal proximal tubule and evaluate if this induction would promote the recovery of mitochondrial and/or renal function after in vivo AKI. The secondary goal was to employ our mitochondrial approach for drug discovery towards identifying a novel …

Amphiphilic Triazolyl Peptides: Synthesis And Evaluation As Nanostructures, Naser Sayeh, Amir Nasrolahi Shirazi, Donghoon Oh, Jiadong Sun, David Rowley, Antara Banerjee, Arpita Yadav, Rakesh Tiwari, Keykavous Parang

Pharmacy Faculty Articles and Research

A new class of amphiphilic triazolyl peptides was designed and synthesized from peptide-based building blocks containing alkyne and azide functional groups namely linear (W(pG))3, cyclic[W(pG)]3, and Ac-K(N3)R-NH2,where W, R, K, and pG represent tryptophan, arginine, lysine, and propargylglycine residues, respectively. The linear (W(pG))3 and cyclic [W(pG)]3 peptides containing alkyne residues were conjugated with Ac-K(N3)R-NH2 functionalized with azide group through click chemistry in the presence of CuSO4.5H2O, Cu (powder), sodium ascorbate, and N,N-disopropylethylamine in methanol:water to afford amphiphilic triazolyl linear-linear (WG(triazole-KR-NH2))3 and cyclic-linear [WG(triazole-KR-NH2)]3 peptides, respectively. The secondary structures of both peptides were similar to a distorted α-helix as shown by …

Rare Books And Social Science, Donald J. Polzella

Psychology Faculty Publications

An essay on the impact of the works in the Imprints and Impressions: Milestones in Human Progress, an exhibition of rare books from the collection of Stuart Rose. Exhibition was held Sept. 29-Nov. 9, 2014, at the University of Dayton.

Philosophy, Medicine And Health Care - Where We Have Come From And Where We Are Going, Michael Loughlin, Robyn Bluhm, Jonathan Fuller, Stephen Burtow, Rose E. G. Upshur, Kirstin Borgerson, Maya J. Goldenberg, Elselijn Kingma

Philosophy Faculty Publications

The role of philosophy in discussions of clinical practice was once regarded by many as restricted to a very limited version of ‘medical ethics’, one that has been extensively criticized in the pages of this journal and elsewhere for being at once philosophically untenable and practically unhelpful [1–4]. While this uninspiring view of the nature and scope of applied philosophy has by no means been eradicated, over a number of years there has been a resurgence of interest in the philosophy of medicine and health care as an intellectually serious and practically significant enterprise. Controversies about evidence, value, clinical knowledge, …

Relationships Between Equine Management Practices And Intestinal Parasite Infection, Abigail Pagel

Honors Projects

Parasitology is an important area of veterinary medicine, but the risk factors for high parasite loads are not well-understood. Equine intestinal parasites can cause extensive disease and death. In the current study, the relationship between equine intestinal parasite loads and adherence to veterinary guidelines for equine management practices was studied. Satisfactory adherence to guidelines regarding food, pasture, and flooding management was related to lower parasite loads. Adherence to guidelines regarding deworming, quarantine, bedding, and water did not appear to lower parasite loads. Still, adhering to these guidelines has been shown to improve equine welfare, even if they are not related …

Prevalence And Clinical Characteristics Of Venous Thromboembolism At The Aga Khan University Hospital, Nairobi, Felix Mutuma Riunga

Master of Medicine in Internal Medicine

Aim: To determine the prevalence of venous thromboembolism in patients presenting to the Aga Khan University Hospital, Radiology Department for lower limb compression ultrasonography with doppler and CT pulmonary angiography. In those found to have venous thromboembolism, the distribution of risk factors as described by Wells, the pattern of clinical presentation, the pattern of initial therapy, the length of hospital stay, major bleeding episodes and in hospital mortality were described. Design: Prospective survey Background: Venous Thromboembolism is a major cause of morbidity and mortality worldwide and its occurrence locally, as well as its clinical characteristics needs to be described in …

The Utility Of A Tablet Computer Device In Comparison To A Standard High Resolution Monitor For Reporting Ct Kub Images, Kenneth Kiriinya Ibeere

Master of Medicine in Imaging and Diagnostic Radiology

Background: The latest technological developments in the field of digital medical imaging have facilitated the transfer of the power and utility of the personal computer to mobile computing devices. One of these that have been used in diagnostic imaging is a tablet computer. Mobile tele-radiology using a tablet computer device is an apt extension of imaging services, for after-office-hours consultation. It is crucial to determine the diagnostic accuracy of these portable computer devices in order to determine safety for use in diagnostic image interpretation without compromising patient care. Objective: To find out the diagnostic accuracy of urolithiasis (urinary tract calculi) …

Prediction Of Breast Tumor Size By Ultrasound: A Comparison With Pathology, David Toyis Wanyonyi

Master of Medicine in Imaging and Diagnostic Radiology

Background: Tumor size is one of the most important prognostic factors in breast cancer and its accurate assessment is critical in planning appropriate treatment. Although histology is often regarded as the definitive way of establishing tumor size, radiological techniques, particularly ultrasonography, are usually relied upon to give an estimate of the tumor size for prognostication and treatment planning. Correlations between mammography, ultrasonography, magnetic resonance imaging (MRI) and pathology size have been performed in different populations with varying results however no prospective study has been done to establish the agreement between sonographic tumor size and histopathological tumor size in our population. …

The Prevalence Of Malaria And Assessment Of The Uptake Of Malaria Prevention Measures In Blood Donors In Two Regional Blood Transfusion Centres In Kenya, Valerie Magutu

Master of Medicine in Clinical Pathology

Transfusion transmitted malaria is one of the most common transfusion transmissible infections and is a threat to blood safety and malaria control in Sub-Saharan African countries where malaria is endemic. The majority of healthy adults living in malaria endemic areas have some degree of immunity to the disease and an asymptomatic low-level parasitaemia is known to exist in a subset of this population. Blood donors recruited from the population are screened using a donor-selection criteria that includes age, weight, self-declared well-being and measurement of vital signs but not history of recent malaria infection or treatment. The Kenya National Blood Transfusion …

Social Media Use In Health Professions: An Educational Intervention To Prevent The Misuse Of Social Media In The Clinical Setting, Dorothy Bouldrick

MUSC Theses and Dissertations

Social media technologies have enormous benefits that facilitate communication, information sharing, and collaboration. The ease with which users can share information instantly has created challenges for the health professions in the form of HIPAA violations via social media. Furthermore, there are few published reports on educational programs aimed at teaching responsible use of social media for students pursuing careers in health professions. This study uses scholarly studies, reports of educational approaches to social media training for health professionals, and legal cases of HIPAA violations via social media to examine social media use in health professions to develop and pilot test …

The Role Of Poly N Acetyl Glucosamine Nanofibers In Cutaneous Wound Healing, Amanda Haley Buff-Lindner

MUSC Theses and Dissertations

Treatment of cutaneous wounds with poly-N-acetyl-glucosamine nanofibers (pGlcNAc), a novel polysaccharide material derived from a marine diatom, results in increases in wound closure, antibacterial activities and innate immune responses. Treatment with nanofibers results in increased defensin, small antimicrobial peptides, expression both in vitro and in vivo. Induction of defensing expression results in bacterial clearance in a cutaneous wound model. We have also shown that Akt1 plays a central role in the regulation of these activities. We show that pGlcNAc treatment of cutaneous wounds in mice results in decreased scar sizes. Additionally, treatment of cutaneous wounds with pGlcNAc results in increased …

Changing Places: Adult Children And The Transition Of Aging Parents, Sarah Martin Gilbert

MUSC Theses and Dissertations

Purpose: This dissertation analyzed measurement of relocation transition in older adults, assessed research for the manner in which older adults make the decision to move, and the adult child's role in the transition of their aging parents. Design: Using Hawker, Payne, Kerr, Hardey, & Powell's (2002) mixed research review method, two integrative reviews were conducted. The first examined how relocation transition is measured in the literature while the second applied the Theory of Planned Behavior (Ajzen, 1985) to determine the behavioral beliefs, subjective norms, and perceived behavioral control of older adults as they contemplate a relocation from independent living to …

Diclazuril Protects Against Maternal Gastrointestinal Syndrome And Congenital Toxoplasmosis, Helieh S. Oz, Thomas Tobin

Internal Medicine Faculty Publications

BACKGROUND: Toxoplasmosis is a common cause of foodborne, gastrointestinal and congenital syndrome with particularly severe or unknown health consequences. There is no safe and effective preventive or therapeutic modality against congenital toxoplasmosis or to eliminate the persistent chronic infection.

HYPOTHESIS: Diclazuril to be safe in pregnancy and effective against gastrointestinal toxoplasmosis.

METHODS: CD1 programmed pregnant mice were divided into groups and administered a diet containing diclazuril, or sham control. Treatments were initiated on Day 5 of pregnancy and continued until Day 16 when dams were euthanatized. On Day 8 of pregnancy dams were infected intraperitoneally with escalating doses of tachyzoites …

Programmable Folding Of Fusion Rna In Vivo And In Vitro Driven By Prna 3wj Motif Of Phi29 Dna Packaging Motor, Dan Shu, Emil F. Khisamutdinov, Le Zhang, Peixuan Guo

Pharmaceutical Sciences Faculty Publications

Misfolding and associated loss of function are common problems in constructing fusion RNA complexes due to changes in energy landscape and the nearest-neighbor principle. Here we report the incorporation and application of the pRNA-3WJ motif of the phi29 DNA packaging motor into fusion RNA with controllable and predictable folding. The motif included three discontinuous ∼18 nucleotide (nt) fragments, displayed a distinct low folding energy (Shu D et al., Nature Nanotechnology, 2011, 6:658–667), and folded spontaneously into a leading core that enabled the correct folding of other functionalities fused to the RNA complex. Three individual fragments dispersed at any …

Electronic Medical Records: The Good And The Bad, Sherry Liou

Quill & Scope

No abstract provided.

Doctors Are Patients Too, Daniel Mangels

Quill & Scope

No abstract provided.

Inspiring Compassion For Rare Diseases, Colton Margus

Quill & Scope

No abstract provided.

An Introduction To Moyamoya Disease, Michael Shen

Quill & Scope

No abstract provided.

Beta-Alanine Suppresses Malignant Breast Epithelial Cell Aggressiveness Through Alterations In Metabolism And Cellular Acidity In Vitro, Roger A. Vaughan, Nicholas P. Gannon, Randi Garcia-Smith, Yamhilette Licon-Munoz, Miguel A. Barberena, Marco Bisoffi, Kristina A. Trujillo

Biology, Chemistry, and Environmental Sciences Faculty Articles and Research

Background: Deregulated energetics is a property of most cancer cells. This phenomenon, known as the Warburg Effect or aerobic glycolysis, is characterized by increased glucose uptake, lactate export and extracellular acidification, even in the presence of oxygen. beta-alanine is a non-essential amino acid that has previously been shown to be metabolized into carnosine, which functions as an intracellular buffer. Because of this buffering capacity, we investigated the effects of beta-alanine on the metabolic cancerous phenotype.

Methods: Non-malignant MCF-10a and malignant MCF-7 breast epithelial cells were treated with beta-alanine at 100 mM for 24 hours. Aerobic glycolysis was quantified …

18 F-Fluorothymidine Uptake In Follicular Lymphoma And Error-Prone Dna Repair, Marielle J. Wondergem, Ken Herrmann, Sergei Syrbu, Josee M. Zijlstra, Nikie Hoetjes, Otto S. Hoekstra, Saskia Agm Cillessen, Laura M. Mosenbergen, Andreas K. Buck, Julie M. Vose, Malik E. Juweid

Journal Articles: Oncology and Hematology

BACKGROUND:

We observed a disproportional 18 F-fluorothymidine (F-FLT) uptake in follicular lymphoma (FL) relative to its low cell proliferation. We tested the hypothesis that the 'excess' uptake of 18 F-FLT in FL is related to error-prone DNA repair and investigated whether this also contributes to 18 F-FLT uptake in diffuse large B cell lymphoma (DLBCL).

METHODS:

We performed immunohistochemical stainings to assess the pure DNA replication marker MIB-1 as well as markers of both DNA replication and repair like PCNA, TK-1 and RPA1 on lymph node biopsies of 27 FLs and 35 DLBCLs. In 7 FL and 15 DLBCL patients, …

Psychosocial Factors Associated With Exclusive Breastfeeding Among Pregnant Women On Follow Up In A Tertiary Maternity Hospital, Cornelia Akinyi Ochola

Master of Medicine in Paediatrics and Child Health

Introduction: Exclusive breastfeeding during the first six months of life is the ideal form of infant feeding. Health benefits of exclusive breastfeeding to infant and mother are well documented in literature. Despite this, the rate of exclusive breastfeeding in the first six months of infants‘ life in Kenya remains low. National nutrition strategy for maternal, infant and young child has set its 2017 target for exclusive breastfeeding at 80% from 32%. To achieve this target, new strategies are needed to complement current exclusive breastfeeding initiatives. Application of theory of planned behaviour model was used to determine the psychosocial factors associated …

Pain Scores Among Ed Patients: Correlation With Desire For Pain Medication, Catherine A. Marco, Megan Mcgervey, Joan Gekonde, Caitlin Martin

Emergency Medicine Faculty Publications

Introduction: Pain has been identified as the most common reason for Emergency Department (ED) visits. The verbal numeric rating pain scale (VNRS) is commonly used to assess pain in the ED. This study was undertaken to determine whether VNRS pain scores correlate with desire for pain medication among ED patients.

Methods: In this prospective survey study, eligible patients included Emergency Department patients over 18 with painful conditions. The primary outcome measures included self-reported VNRS, ED diagnosis, number of ED visits and number of ED admissions within the past year, and the self-reported desire for pain medication.

Results: Among 482 participants …

Balika Fact Sheet: Highlight On Marriage, Population Council

Poverty, Gender, and Youth

Early marriage deprives girls of the opportunity for personal development and their rights to full reproductive health and well-being, education, and participation in civil life. Bangladesh stands out in international comparisons as having an extraordinarily early age at marriage for girls and a considerable average age difference in marriage between girls and their husbands. This Bangladeshi Association for Life Skills, Income, and Knowledge for Adolescents (BALIKA) fact sheet, “Highlight on Marriage,” concludes: In Bangladesh, marriage remains early by most standards and the majority of girls still get married before reaching the legal age of 18 years. By age 19, more …

Building Evidence On Effective Programs To Delay Marriage And Support Married Girls In Africa, Population Council

Poverty, Gender, and Youth

In the early 2000s, the Population Council collaborated on the first rigorously evaluated program in Africa to delay the age of marriage and support girls married as children. Berhane Hewan (Light for Eve) targeted married and unmarried girls aged 10–19 in rural areas of Amhara. The program’s four components—community conversations to raise awareness and address cultural and social norms, provision of school supplies to remain in school, conditional asset transfer to address economic incentives to marry girls, and girls’ mentoring groups—were based on formative research and consultations with local leadership. Building on the Berhane Hewan pilot, the Council and partners …

One Year Symptom Severity And Health-Related Quality Of Life Changes Among Patients Undergoing Uterine Fibroid Embolisation, Charles Muriuki Mariara

Master of Medicine in Obstetrics and Gynecology

Background: The main aim of treatment of symptomatic fibroids by various modalities including uterine fibroid embolisation is to alleviate symptoms and ultimately improve the quality of life. The efficacy of this modality of treatment in women with significant fibroid burden and large uterine volumes is not clear. Objective: To determine the change in symptom severity and health-related quality of life among patients who have undergone uterine fibroid embolisation for treatment of symptomatic uterine fibroids. Setting: Aga Khan University Hospital, Nairobi Methods: A prospective before and after study (observational) of patients undergoing uterine fibroid embolisation. Prior to embolisation, study participants underwent …