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Genetic Variation And Possible Mechanisms Driving The Evolution Of Worldwide Fig Mosaic Virus Isolates, Jeewan Jyot Walia, Anouk Willemsen, Eminur Elci, Kadriye Caglayan, Bryce W. Falk, Luis Rubio

Nebraska Center for Virology: Faculty Publications

Fig mosaic virus (FMV) is a multipartite negative-sense RNA virus infecting fig trees worldwide. FMV is transmitted by vegetative propagation and grafting of plant materials, and by the eriophyid mite Aceria ficus. In this work, the genetic variation and evolutionary mechanisms shaping FMV populations were characterized. Nucleotide sequences from four genomic regions (each within the genomic RNAs 1, 2, 3, and 4) from FMV isolates from different countries were determined and analyzed. FMV genetic variation was low, as is seen for many other plant viruses. Phylogenetic analysis showed some geographically distant FMV isolates which clustered together, suggesting long-distance migration. …

Challenges And Considerations In Optimizing Ovarian Stimulation Protocols In Oncofertility Patients, Kathryn Coyne, Makenzie Purdy, Kathleen O'Leary, Jerome L. Yaklic, Steven R. Lindheim, Leslie A. Appiah

Obstetrics and Gynecology Faculty Publications

The scope of cancer treatment in women of childbearing age has changed in the last decade. Fertility preservation is no longer an afterthought but central to multi-disciplinary cancer treatment planning and should be addressed due to the cytotoxic effects of cancer therapy. However, oncology patients present as a unique treatment challenge as the physician must balance the urgency of fertility preservation with the risks of delaying cancer therapy. Controlled ovarian stimulation (COS) is routinely applied in assisted reproductive technology but can be contraindicated in women with estrogen-receptor-positive tumors. This paper reviews some of the challenges to consider when using COS …

Four-Month-Old Infant With Intussusception Presenting As Altered Mental Status, Luis Maldonado, Jennifer Takagishi

Pediatrics Faculty Publications

Objective: To remind pediatric care providers that an altered mental status can be the only presenting symptom for intussusception, a life-threatening diagnosis.

Method: A case report that presents a unique presentation of intussusception: a 4-month old boy with neurological findings after a reported head injury.

Conclusion: Diagnosis of intussusception in the pediatric population is highly dependent on its classical presenting signs and symptoms: sudden severe colicky abdominal pain, vomiting, and an abdominal mass in children between 3 months and 6 years of age. Consider that an altered mental status can be the only presenting symptom.

Obesity And Surgical Wound Healing: A Current Review, Yvonne N. Pierpont, Trish Phuong Dinh, R. Emerick Salas, Erika L. Johnson, Terry G. Wright, Martin C. Robson, Wyatt G. Payne

Surgery Faculty Publications

Objective. The correlation between obesity and deficient wound healing has long been established. This review examines the current literature on the mechanisms involved in obesity-related perioperative morbidity. Methods. A literature search was performed using Medline, PubMed, Cochrane Library, and Internet searches. Keywords used include obesity, wound healing, adipose healing, and bariatric and surgical complications. Results. Substantial evidence exists demonstrating that obesity is associated with a number of postoperative complications. Specifically in relation to wound healing, explanations include inherent anatomic features of adipose tissue, vascular insufficiencies, cellular and composition modifications, oxidative stress, alterations in immune mediators, and nutritional …

Cancer Care Annual Report 2013-2014, Children's Mercy Hospital

Cancer Center Annual Reports

Annual report of cancer care and oncology services at the Children's Mercy Hospital, Kansas City MO, a pediatric medical center.

The Role Of Scavenger Receptor Class B Type I-Regulated Inducible Glucocorticoids In Sepsis, Junting Ai

Theses and Dissertations--Nutritional Sciences

Sepsis claims over 215,000 lives in the US annually. Inducible glucocorticoids (iGC) is produced during sepsis. However, the precise effects of iGC in sepsis remain unclear due to a lack of appropriate animal models. Glucocorticoid (GC) insufficiency is associated with a marked increase in mortality and occurs in 60% of severe septic patients. Yet the conclusion of GC therapy on septic patients is still controversial.

Scavenger receptor class B type I (SR-BI) in the adrenal mediates the selective uptake of cholesteryl ester from lipoproteins for GC synthesis. SR-BI-/- mice completely lack iGC during sepsis and are highly susceptible to septic …

Automated Classification Of Malignant Melanoma Based On Detection Of Atypical Pigment Network In Dermoscopy Images Of Skin Lesions, Nabin K. Mishra

Doctoral Dissertations

“Melanoma causes more deaths than any other form of skin cancer. Early melanoma detection is important to prevent progression to a more deadly stage. Automated computer-based identification of melanoma from dermoscopic images of skin lesions is the most efficient method in early diagnosis. An automated melanoma identification system must include multiple steps, involving lesion segmentation, feature extraction, feature combination and classification. In this research, a classifier-based approach for automatically selecting a lesion border mask for segmentation of dermoscopic skin lesion images is presented. A logistic regression based model selects a single lesion border mask from multiple border masks generated by …

Is The Consistency More Important Than The Ingredients For Treatment? Case Report For Eosinophilic Esophagitis, Dan W. Parrish, Shashank Sharma, Santhosh Kumar

Surgery Publications

Eosinophilic Esophagitis seems to be an ever-changing disease, from patient-to-patient and from year-to-year in the same patient. Improvements in these patients’ lives have been made with the realization that elimination of dietary antigens helped with symptom relief and treatment with topical steroids assisted in eradication of esophageal eosinophils.

This case study has two very important aspects that should be emphasized. The first is the realization that it may be consistency of the steroid mixture rather than the ingredients that infer the effectiveness of the EoE treatment, and the second aspect is the willingness of the medical team to listen to …

A Randomized Control Trial Comparing Weight Adjusted Dose Versus Fixed Dose Prophylactic Phenylephrine Infusion On Maintaining Systolic Blood Pressure During Caeserean Section Under Spinal Anaesthesia, Lucy Wambui Mwaura

Master of Medicine in Anaesthesiology

Background: Spinal anaesthesia is the standard of care for elective caesarean delivery. Its advantages over general anaesthesia include: decreased blood loss, reduced postoperative pain and faster recovery time. Despite these advantages, the sympathetic blockade induced by spinal anaesthesia results in 80 percent incidence of hypotension without prophylactic management. This hypotension can cause: nausea, vomiting, cardiovascular collapse or even loss of consciousness in the mother, and fetal acidosis. Current evidence supports co-loading with intravenous fluids in conjunction with the use of vasopressors as the most effective way to prevent and treat the hypotension. Phenylephrine is the accepted vasopressor of choice in …

Incidence And Risk Factors For Acute Myocardial Injury After Non-Cardiac Surgery At The Aga Khan University Hospital Nairobi, Salim Said Ahmed

Master of Medicine in Internal Medicine

Aim: To determine the incidence and risk factors for acute myocardial injury after non-cardiac surgery at Aga Khan University Hospital Nairobi. Design: Prospective cohort study Background: Myocardial injury is the most common major cardiovascular complication in patients undergoing non-cardiac surgery. Large numbers of intermediate-risk and high-risk cardiac patients will be undergoing surgery as the population grows older, and thus myocardial injury after non-cardiac surgery could be a rising problem. Patients and Setting: Adult participants undergoing intermediate and high risk non-cardiac surgery at the Aga Khan University Hospital Nairobi were evaluated for incidence and risk factors for myocardial injury after non-cardiac …

Pediatric Cerebral Palsy In Africa: A Systematic Review, Kirsten A. Donald, Pauline Samia, Angelina Kakooza-Mwesige, David Bearden

Paediatrics and Child Health, East Africa

Cerebral palsy is a common neurologic problem in children and is reported as occurring in approximately 2-2.5 of 1000 live births globally. As is the case with many pediatric neurologic conditions, very little has been reported on this condition in the African context. Resource-limited settings such as those found across the continent are likely to result in a different spectrum of etiologies, prevalence, severity as well as management approaches. This review aims to establish what has been reported on this condition from the African continent so as to better define key clinical and research questions.

Rwandan Young People’S Perceptions On Sexuality And Relationships: Results From A Qualitative Study Using The ‘Mailbox Technique’, Kristien Michielsen, Pieter Remes, John Rugabo, Ronan Van Rossem, Marleen Temmerman

Obstetrics and Gynaecology, East Africa

This study aimed to gain more insight into young Rwandans’ perceptions on sex and relationships, which is essential for formulating effective sexual and reproductive health (SRH) promotion interventions. Using a ‘mailbox technique’, this paper studies the spontaneous thoughts of Rwandan young people on sexuality. Mailboxes were installed in five secondary schools in the Bugesera district and students were invited to write about their ideas, secrets, wishes, desires and fears on sexuality and relationships. Of the 186 letters collected, 154 addressed SRH topics. The letters were analysed in NVivo 9 using a theoretical model on vulnerability. Two stereotypical sexual interactions co-exist: …

Oncolog, Volume 59, Number 01, January 2014, Joe Munch, Jill Delsigne, M. Yeoman

OncoLog MD Anderson's Report to Physicians (All issues) Archives

• Addressing Fertility Issues in Cancer Patients: For some newly diagnosed cancer patients, whether they will be able to have children after treatment is the furthest question from their minds-until the risks of therapy bring it front-and-center
• INBRIEF: Intensity-Modulated Proton Therapy May Reduce Side Effects of Oropharyngeal Carcinoma Treatment
• Medical Advances Improve Bile Duct Cancer Treatment: Cholangiocarcinoma, the most common bile duct cancer, is a clinically silent disease in its early stages; patients usually present with advanced disease, which carries a poor prognosis
• HOUSE CALL: Weight Loss Tips for Breast Cancer Survivors-Losing excess weight has multiple benefits

Improving Sexual Health In Men With Prostate Cancer: Randomised Controlled Trial Of Exercise And Psychosexual Therapies, Prue Cormie, Suzanne K. Chambers, Robert U. Newton, Robert A. Gardiner, Nigel Spry, Dennis R. Taaffe, David Joseph, M Akhlil Hamid, Peter Chong, David Hughes, Kyra Hamilton, Daniel A. Galvão

Research outputs 2014 to 2021

Background: Despite being a critical survivorship care issue, there is a clear gap in current knowledge of the optimal treatment of sexual dysfunction in men with prostate cancer. There is sound theoretical rationale and emerging evidence that exercise may be an innovative therapy to counteract sexual dysfunction in men with prostate cancer. Furthermore, despite the multidimensional aetiology of sexual dysfunction, there is a paucity of research investigating the efficacy of integrated treatment models. Therefore, the purpose of this study is to: 1) examine the efficacy of exercise as a therapy to aid in the management of sexual dysfunction in men …

The Impact Of Prostate Cancer On Survivors' Sense Of Meaning In Life, Carol Lynn Brady

Walden Dissertations and Doctoral Studies

Research has shown that meaning in life is a universal human need, regardless of cultural identity or education. This research study investigated how the encounter with prostate cancer impacted men's sense of well-being and what they considered meaningful in life. An interpretative phenomenological research design was used because of its descriptive nature and its focus on the individual's perspective. The sample included 6 men between the ages of 18 and 65 who had been out of treatment for 1 year. Participants completed essays about their perceptions and experiences over 3 periods of time: before diagnosis, during treatment, and as survivors. …

How Patients' Self-Disclosure About Sickle Cell Pain Episodes To Significant Others Relates To Living With Sickle Cell Disease, Valerian J. Derlega, Louis H. Janda, Jeannie Miranda, Ian A. Chen, B. Mitchell Goodman Iii, Wally Smith

Psychology Faculty Publications

Objectives: This cross-sectional study examines to whom and how fully sickle cell disease (SCD) patients talk to others about sickle cell pain, how helpful it is to talk with others about these pain episodes, and the association between talking to others about sickle cell pain episodes and patients' psychological adjustment and coping strategies in managing the disease.

Methods: A convenience sample of 73 African American patients with SCD (30 men and 43 women), were recruited from two SCD clinics at the time of routine medical visits. Most participants had been diagnosed with hemoglobin SS, and they reported an average number …

Effects Of Hyperbaric Oxygen On Eye Tracking Abnormalities In Males After Mild Traumatic Brain Injury, Joanna R. Wares, David X. Cifu, Kathy W. Hoke, Paul A. Wetzel, George Gitchel, William Carne

Department of Math & Statistics Faculty Publications

The effects of hyperbaric oxygen (HBO2) on eye movement abnormalities in 60 military servicemembers with at least one mild traumatic brain injury (mTBI) from combat were examined in a single-center, randomized, double-blind, sham-controlled, prospective study at the Naval Medicine Operational Training Center. During the 10 wk of the study, each subject was delivered a series of 40, once a day, hyperbaric chamber compressions at a pressure of 2.0 atmospheres absolute (ATA). At each session, subjects breathed one of three preassigned oxygen fractions (10.5%, 75%, or 100%) for 1 h, resulting in an oxygen exposure equivalent to breathing either surface air, …

In Children And Elderly Patients, What Are The Effects Of General Anesthesia On Neurological Health Compared With Procedural Sedation?, Taylor G. Caldwell

Theses and Dissertations

Anesthesia has been a necessity in the field of health care since it was discovered in the early to middle 1800s. Before anesthesia, many procedures and surgeries that are now considered an easy fix were life-threatening and patients often chose the inevitable death over the pain of surgery. The idea was stumbled upon when "laughing gas," nitrous oxide, was inhaled and credited in "produc[ing] a state of intoxication during which people became highly amused and insensitive to pain" (Palo Alto, 2013, para. 2). Anesthesia has come an unbelievably long way since the first surgery under anesthesia was performed by Dr. …

Anesthesia Safety: Filter Needle Use With Glass Ampules, Debran L. Harmon

UNF Graduate Theses and Dissertations

Glass particle contamination of medication occurs when opening ampules which may cause patient harm. The use of filter needles reduces this risk. Many anesthesia providers use ampules daily, but do not use filter needles when aspirating medications from ampules. In addition, filter needles may not be readily available at the anesthesia medication preparation site. Not using filter needles or having them available for use can increase the risk of patient harm by glass particle contamination. The purpose of this project was to increase anesthesia provider’s knowledge thereby improving compliance with evidence-based standards when preparing medications from ampules. The goal is …

Eating Disorders: The Hidden Hormonal Effect On Fertility, Esther Tessler-Karfunkel

The Science Journal of the Lander College of Arts and Sciences

Women who have a history of eating disorders, specifically anorexia nervosa, are more prone to suffer from infertility. There are several hormones which are the driving force in this system and are therefore responsible for this. Fortunately, there are treatments which can help women with a history of eating disorders to reproduce. Using information found on Pubmed and Touro College’s database, this paper will discuss why the body cannot reproduce when it is lacking proper nutrition, as well as the various dynamics in the human reproductive system which are compromised when the body is not properly nourished.

Immunization Manual For Medical And Nursing Students ''Hepatitis B Disease'', Rose Kamenwa

Paediatrics and Child Health, East Africa

Approximately 350 – 400 million people worldwide are chronically infected with the hepatitis B virus (HBV ), and approximately 1 million die annually of HBV -related disease. The worldwide prevalence of hepatitis B virus ranges from 0.1% to 20%). This wide range is largely due to differences in age at the time of infection. Following acute HBV infection, the risk of developing chronic infection varies inversely with age: 90% for perinatal infection, 25–35% for infection at age 1–5 years and less than 10% for adults. About 45% of the world population live in areas where chronic HBV is highly endemic …

Self-Reported Juvenile Firesetting, Carrie Howell Bowling, Hatim A. Omar

Pediatrics Faculty Publications

In this chapter we address gaps in existing research by examining the relationship between academic performance and attention problems with juvenile firesetting. Two datasets from the Achenbach System for Empirically Based Assessment (ASEBA) were used. The Factor Analysis Dataset (N = 975) was utilized and results indicated that adolescents who report lower academic performance are more likely to set fires. Additionally, adolescents who report a poor attitude toward school are even more likely to set fires. Logistic regressions were run to determine if attention problems predicted firesetting and the findings indicated that attention problems are predictive of self-reported firesetting. The …

Disability And Women's Health, Stephanie Stockburger, Hatim A. Omar

Pediatrics Faculty Publications

Children, adolescents, and women with disabilities experience the same sexual development, pubertal changes, concerns, and desire to reproduce as their typically developing counterparts. However, society has tended to stigmatize women with disabilities as "asexual" and ignore this aspect of their health care. These women are less likely to receive gynecological exams, contraception, and evaluation of sexual dysfunction. Unfortunately, having a disability places women at risk for sexual exploitation and abuse as well as sexually transmitted infections. Therefore, reproductive health care for these women is imperative. A number of barriers to receiving reproductive care exist. However, with proper education and knowledge …

Academic Predictors And Characteristics Of Self-Reported Juvenile Firesetting, Carrie Howell Bowling, Hatim A. Omar

Pediatrics Faculty Publications

The main purpose of this study was to address gaps in existing research by examining the relationship between academic performance and attention problems with juvenile firesetting. Two datasets from the Achenbach System for Empirically Based Assessment (ASEBA) were used. The Factor Analysis Dataset (N = 975) was utilized and results indicated that adolescents who report lower academic performance are more likely to set fires. Additionally, adolescents who report a poor attitude toward school are even more likely to set fires. Logistic regressions were run to determine if attention problems predicted firesetting and the findings indicated that attention problems are predictive …

Relationships Between Health Literacy And Heart Failure Knowledge, Self-Efficacy, And Self-Care Adherence., Aleda M.H. Chen, Karen Yehle, Nancy M. Albert, Kenneth F. Ferraro, Holly L. Mason, Matthew M. Murawski, Kimberly S. Plake

School of Nursing Faculty Publications

Background

It has been argued that only 12% of adults have the necessary health literacy to manage their health care effectively, which can lead to difficulties in self-care activities, such as medication adherence. Prior research suggests that health literacy may influence knowledge, self-efficacy and self-care, but this has not been fully examined.

Objective

To test a model to explain the relationships between health literacy, heart failure knowledge, self-efficacy, and self-care.

Methods

Prior to receiving clinic-based education, newly referred patients to 3 heart failure clinics completed assessments of health literacy, heart failure knowledge, self-efficacy, self-care, and demographics. Structural equation modeling was …

Utility Of Microwave Radiometry For Diagnostic And Therapeutic Applications Of Non-Invasive Temperature Monitoring, Paul R. Stauffer, Dario B. Rodrigues, Paolo F. Maccarini

Department of Radiation Oncology Faculty Papers

This paper describes the use of microwave radiometry for several diagnostic and therapeutic applications that can benefit from accurate non-invasive measurement of volume average temperature of tissue regions extending 4cm or more into the body. Design features are summarized for an appropriate high sensitivity long term stable system with 2.5 and 7 cm diameter receive antennas and integral 1.35 GHz total power radiometer electronics. Radiometer performance is characterized with electromagnetic and thermal simulations and experimental measurements in realistic models of two typical clinical applications. Results demonstrate sufficient sensitivity to track clinically significant changes in temperature of deep tissue targets for …

Immunotherapy In Combination With Behavioral Enrichment In A Canine Model Of Aging, Paulina R. Davis

Theses and Dissertations--Pharmacology and Nutritional Sciences

Alzheimer’s disease (AD) is characterized by cognitive decline and hallmark neuropathology, including β-amyloid (Aβ). Therapeutic strategies for AD are focusing on reducing Aβ. Canines develop Aβ neuropathology and cognitive decline with age similar to AD patients. In previous studies, immunization with Aβ1-42 (VAC) in aged canines decreased brain Aβ but did not improve cognition. Behavioral enrichment (ENR) improved cognition without reducing brain Aβ. We hypothesized that VAC combined with ENR would provide cognitive benefits and reduce Aβ neuropathology, as compared individual VAC and ENR treatments. Aged beagles were placed into groups: control, VAC with fibrillar Aβ1-42, ENR, and combination treatment …

Quantification Of Factors Governing Drug Release Kinetics From Nanoparticles: A Combined Experimental And Mechanistic Modeling Approach, Kyle Daniel Fugit

Theses and Dissertations--Pharmacy

Advancements in nanoparticle drug delivery of anticancer agents require mathematical models capable of predicting in vivo formulation performance from in vitro characterization studies. Such models must identify and incorporate the physicochemical properties of the therapeutic agent and nanoparticle driving in vivo drug release. This work identifies these factors for two nanoparticle formulations of anticancer agents using an approach which develops mechanistic mathematical models in conjunction with experimental studies.

A non-sink ultrafiltration method was developed to monitor liposomal release kinetics of the anticancer agent topotecan. Mathematical modeling allowed simultaneous determination of drug permeability and interfacial binding to the bilayer from release …

Nucleoside Reverse Transcriptase Inhibitors Are Anti-Inflammatory And Target Dry Age-Related Macular Degeneration, Benjamin J. Fowler

Theses and Dissertations--Physiology

Age-related macular degeneration (AMD) is a principal cause of blindness in the United States and other industrialized nations. An estimated 10 million Americans are afflicted with AMD, which is comparable in scope to the 12 million living with cancer, or the 5 million with Alzheimer’s disease. The prevalence of AMD steadily increases with age, affecting 2% of the population at age 40, and one in four people by age 80. For reasons that are not fully understood, AMD is more common in lightly-pigmented and female populations. Treatment of AMD is largely an unmet need: There are no FDA approved therapies …

Lifelong Learning: Established Concepts And Evolving Values, Jamsheer J Jehangir Talati Professor

Section of Urology

Objective: To summarise the concepts critical for understanding the content and value of lifelong learning (LL).
Methods: Ideas generated by personal experience were combined with those of philosophers, social scientists, educational institutions, governments and UNESCO, to facilitate an understanding of the importance of the basic concepts of LL.
Results: Autopoietic, continuous, self-determined, informal, vicarious, biographical, lifelong reflexive learning, from and for society, when supported by self-chosen formal courses, can build capacities and portable skills that allow useful responses to challenges and society’s new structures of governance. The need for LL is driven by challenges. LL flows continuously in pursuit of …