Digital Commons Network^™

Influence Of Perceived Racial Discrimination On Health And Behaviour Of Immigrant Children In British Columbia, Anne George, Cherylynn Bassani, Robert Armstrong

Paediatrics and Child Health, East Africa

This study examines the influence of perceived discrimination on the health and behaviour of ethnic minority immigrant children in British Columbia, Canada. Using data from the New Canadian Children and Youth Study, we examine perceived discrimination experienced by the parent, family, and cultural group in Canada to test the influence of micro-, meso-, and macrolevels of discrimination on children. Families from 6 ethnic backgrounds participated in the study. Parents’ perceptions of the child’s health and six behavioral scales (hyperactivity, prosocial behaviour, emotional problems, aggression, indirect aggression, and a general combined behaviour scale) were examined as outcome variables. After controlling for …

Modulation Of Anti-Tumor Immune Response By Tgf-Β-Inducible Early Gene 1 (Tieg1), Andi Cani

Wayne State University Theses

Cancer immunotherapy has had limited clinical efficacy partly because regulatory T cells (Treg) suppress the immune response to tumor-associated antigens. Inducible regulatory T cells (iTreg), which are converted from naïve CD4 T cells by TGF-β, an abundant cytokine in the tumor microenvironment, may contribute to this immune suppression. Induction of Foxp3 by TGF-β is mediated by the transcription factor TIEG1 and abrogation of this protein prevents Foxp3 expression. We are testing the hypothesis that blockade of TIEG1 to prevent iTreg conversion will enhance immune response in DNA vaccination to the tumor associated antigen Her-2. Wild type and TIEG1 knockout mice …

Suicide In Prepubertal Children, Kimberly K. Mcclanahan, Hatim A. Omar

Pediatrics Faculty Publications

No abstract provided.

Youth And Student Suicide, Kimberly K. Mcclanahan, Hatim A. Omar

Pediatrics Faculty Publications

No abstract provided.

Suicidal Behavior And Prevention In Adolescence, Hatim A. Omar, Joav Merrick

Pediatrics Faculty Publications

Suicidal behavior in youth is not uncommon and currently one of the leading causes of death in adolescence in many countries around the world. Individual risk factors for suicidality in youth include: psychiatric disorder; certain personality characteristics; genetics; gender; sexual orientation; and previous suicide attempts. Family psychopathology and environmental factors such as media contagion also contribute as risk factors. Developmental issues, including: the establishment of independence and intimate relationships; as well as the pursuit of personal and career goals; may also provide stressors leading to suicidality. Prevention and intervention strategies are considered and include: early detection and treatment of mental …

Sexually Transmitted Diseases In Adolescence, Donald E. Greydanus, Jane Seyler, Hatim A. Omar, Colleen B. Dodich

Pediatrics Faculty Publications

High rates of unprotected sexual behavior in adolescents result in millions of sexually transmitted diseases (STDs) in the world. This paper reviews factors inducing high STD rates, specific STDs, and their management based on 2010 US Centers for Disease and Prevention (CDC) STD guidelines. Clinicians should screen all their sexually active adolescent patients for STDs and provide preventive education as well as treatment measures.

Physician Review Of Workers' Compensation Case Files: Can It Affect Decision Outcomes?, Mark E. Hammett, Christopher Jankosky, John Muller, Elizabeth Hughes, Francesca Litow

Community & Environmental Health Faculty Publications

Objective: To identify common attributes of Federal workers compensation cases referred to Navy physicians for medical opinions and to determine the impact of the review on the final case decision. Methods: Retrospective case study and descriptive analysis of 258 opinion letters written by physicians on referred cases from 2006 to 2010. Results: Navy physician opinions were considered in the outcome in some of the cases, and there was a statistically significant difference between the claim acceptance rate in the study population and the total population. Worker age was correlated with certain claim types. Conclusions: There is preliminary evidence that the …

Working With Mild Traumatic Brain Injury: Voices From The Field, Page Walker Buck, Rebecca G. Laster, Jocelyn Spencer Sagrati, Rachel Shapiro Kirzner

Social Work (Graduate) Faculty Publications

No abstract provided.

Imaging And Intervention For Coronary Artery Disease Following Irradiation Of Malignant Thymoma, Saulat H. Fatimi, Salima Ahmed Bhimani, Ranish Deedar-Ali- Khawaja, Ali Khawaja

Section of Cardiothoracic Surgery

Thymomas are rare malignant epithelial growths, constituting 20% of mediastinal tumours. Resection followed by irradiation may be employed in all thymomas except for stage 1 thymomas. Mediastinal irradiation is associated with coronary artery disease. The mean duration of presentation of post-irradiation coronary artery disease is 16 years (range 3-29 years). In our patient coronary artery disease was found only a year post irradiation. A 55 year old male who presented with complaints of dyspnoea, retrosternal chest pain and heaviness since one year underwent resection for malignant thymoma followed by radiotherapy. He presented with coronary artery disease a year after undergoing …

Extreme Sports: Are They Worth The Risk?, Angela Walin

3690: A Journal of First-Year Student Research Writing

Overview: Broken bones, head trauma, shark attacks, and casualties all while playing the sport you love. Is it worth it? With extreme sports come extreme risks. There are many controversies over these sports as to whether they are ethical or not and why anybody with the right mindset would consider participating in such events. These sports often involve high speed, great heights, a high level of physical exertion, and highly specialized gear or spectacular stunts. Some popular and quickly growing extreme sports in today’s society are snowboarding, speed and freestyle skiing, surfing, sky diving, mountain climbing, and wake boarding. Many …

Does The Afferent Tubular Segment In An Orthotopic Bladder Substitution Compromise Ureteric Antireflux Properties? An Experimental Study In Dogs, Hassan Abol- Enein, Nuzhat Faruqui, Nashwa Barakat, Ahmed A. Shokeir

Section of Urology

Objective: To study the effects of a short ureter on renal function and histology in an orthotopic bladder substitution model using a long afferent limb, in a canine model.
Materials and methods: The study included nine adult mongrel dogs. A 40-cm segment of ileum was isolated, the distal half detubularized, configured into a U-shape and sutured to form a flat plate; this was then used to augment the bladder. The proximal half of the isolated ileum remained in continuity with the enterocystoplasty to form an isoperistaltic ileal ‘chimney’. The left ureter was divided at its lumbar part and …

Key Opinion Leaders' Views Regarding Emergency Contraception In India, M.E. Khan, Isha Bhatnagar, Deepthi S. Varma, Anvita Dixit

Reproductive Health

This policy brief explores the views of key opinion leaders (KOLs) in the field of reproductive health and family welfare on provision of emergency contraception (ECPs). The study’s objective was to gain a better understanding of how the attitudes and beliefs of KOLs might influence policy and program implementation, either encouraging or opposing ECP promotion and service delivery. Results suggest strong support by the majority of KOLs to continue the sale of ECP as an over-the-counter drug. KOLs also emphasized the importance of comprehending and addressing the main barriers to ECP provision and use: poor knowledge, lack of training, moral …

Attitudes, Croyances Et Pratiques Des Leaders D'Opinion Clés (Loc) Et Des Prestataires Sur La Contraception D'Urgence (Cu) Au Sénégal, Babacar Mane, Saumya Ramarao, Martha Brady, Fatou Bintou Mbow, Ababacar Thiam

Reproductive Health

In Senegal, initiatives for mainstreaming the emergency contraceptive pill (ECP) in the family planning program are fairly recent. Service statistics indicate, however, that ECP distribution through the public sector is very low. While most users access ECPs through the private sector, the volume of sales is not clear, due to the absence of an operational information system of EC distribution through pharmacies. In an effort to strengthen EC provision in Senegal and reposition EC within the FP program, the Population Council conducted a study in collaboration with the Reproductive Health Division of the Ministry of Health, Senegal to document the …

Critical Issues For Integrating Srh And Hiv/Aids Services To Provide Dual Protection Against Unintended Pregnancy And Hiv/Sti Acquisition, Population Council

Reproductive Health

This document reports on a one-day symposium that was held by the STEP UP (Strengthening Evidence for Programming on Unintended Pregnancy) Research Program Consortium, coordinated by the Population Council. STEP UP generates policy-relevant research to promote an evidence-based approach for improving access to family planning and safe abortion in Bangladesh, Ghana, India, Kenya, and Senegal. The symposium’s objectives were to review and discuss critical and emerging issues around integrating SRH and HIV and AIDS services to enable dual protection, including new directions in dual protection technology and behaviour change interventions. The meeting also provided an opportunity to discuss the programmatic …

Birth Spacing And Family Planning Uptake In Pakistan: Evidence From Falah, Arshad Mahmood

Reproductive Health

The Population Council was the lead implementing agency for the Family Advancement for Life and Health (FALAH) project in Pakistan. The project’s main objectives were to achieve a 10 percent increase in the use of moden contraceptives, to equip 80 service delivery points to provide family planning services, and to ensure birth-spacing understanding and ways to achieve it by three-quarters of the target population. The main conclusion of this research is that a sharp uptake of family planning is possible in a relatively short time, if certain investments are made to ensure better communication and greater access to quality family …

Attitudes, Beliefs, And Practices Of Key Opinion Leaders (Kol) And Providers About Emergency Contraception (Ec) In Senegal, Babacar Mane, Saumya Ramarao, Martha Brady, Fatou Bintou Mbow, Ababacar Thiam

Reproductive Health

In 2010, the Reproductive Health Division in Senegal, with support from Population Council, performed an assessment of the emergency contraception (EC) integration process into the national health system through a national forum on EC. This forum revealed that there was a real promotional problem regarding EC in the national health system despite the efforts made. There was widespread lack of public awareness of the product, rumors concerning EC due to the sensitive nature of the product, low inclusion of EC in routine service delivery, especially during initial counseling in family planning awareness campaigns , and a better method of keeping …

Theoretically-Driven Infrastructure For Supporting Health Care Teams Training At A Military Treatment Facility, T. Robert Turner Jr., V. Andrea Parodi

VMASC Publications

Designated a Department of Defense Team Resource Center (TRC) in 2008, Naval Medical Center Portsmouth (NMCP) currently hosts three tri-service health care teams training courses annually. Each consists of didactic learning coupled with simulation-based training exercises to provide an interactive educational experience for health care professionals. Simulated cases are developed to reinforce specific teamwork skills and behaviors, and to incorporate a variety of technologies including standardized patients, manikins, and virtual reality. The course is also the foundation of a research program designed to explore applications of modeling and simulation for enhanced team training in health care. The TRC has adopted …

Promoting Mitochondrial Biogenesis With The Sirti Activator Srt1720 To Improve Mitochondrial And Renal Function After Acute Kidney Injury, Jason Allen Funk

MUSC Theses and Dissertations

Mitochondrial dysfunction is a primary pathological consequence of acute kidney injury (AKI). Induction of mitochondrial biogenesis via the nuclear coactivator of transcription PPARγ-coactivator-1α (PGC-1α), the master regulator of mitochondrial biogenesis, rescues mitochondrial function in renal cells after oxidant injury. The primary goal of this project was to evaluate the recovery of mitochondrial function after in vivo AKI, and to determine the influence of mitochondrial biogenesis during the repair process. Deacetylation of PGC-1α by the class III HDAC SIRT1 produces a more active form of the protein and stimulates mitochondrial biogenesis. The potent SIRT1 activator SRT1720 induced deacetylation of PGC-1α, increased …

Accuracy Of Automated Attenuation-Based 3-Dimensional Segmentation: In The Analysis Of Left Ventricular Function Compared With Magnetic Resonance Imaging, Harald Brodoefel, Ilias Tsiflikas, Ulrich Kramer, Nina Lang, Anja Reimann, Christoph Burgstahler, Claus D Claussen, Martin Heuschmid

The Texas Heart Institute Journal

We evaluated attenuation-based 3-dimensional segmentation for the analysis of left ventricular function, using as our standard of reference magnetic resonance imaging and dual-source computed tomography with traditional short-axis planimetry.

Twenty patients with known or suspected coronary artery disease were examined prospectively. In all magnetic resonance and computed tomographic datasets, global functional values were determined by 2-dimensional planimetry. Computed tomographic scans were further evaluated by automated 3-dimensional segmentation, and the results were compared by Pearson correlation and Bland-Altman analysis.

Agreement between magnetic resonance imaging and dual-source computed tomographic 2-dimensional planimetry was good for all values (end-diastolic volume, bias= −4.2, r=0.99; end-systolic …

Species Identification Of Invasive Yeasts Including Candida In Pakistan: Limitations Of Phenotypic Methods, Joveria Farooqi, Kauser Jabeen, Noureen Saeed, Afia Zafar, Mary Eleanor Brandt, Rumina Hasan

Department of Pathology and Laboratory Medicine

Objective: To compare phenotypic and genotypic methods of yeast identification. Methods: The in-vitro cross-sectional study was conducted from January 2006 to May 2009. Invasive yeasts isolated at the clinical microbiology laboratory at the Aga Khan University (AKU), Karachi, Pakistan, were identified. Speciation by phenotypic and molecular methods was compared. All yeasts isolated during the study period from blood and other invasive sites were identified using standard methods. Isolates were shipped to Mycotic Diseases Branch, Centres for Disease Control and Prevention, Atlanta, Georgia, USA, for identification by Luminex flow cytometric multianalyte profiling (xMAP) system. Ribosomal ITS2 DNA sequencing was performed …

Retrospective Analysis Of Metabolic Syndrome: Prevalence And Distribution In Executive Population In Urban Pakistan., Niloufer Sultan Ali, Ali Khan Khuwaja, Adnan Ur Rahman, Kashmira Nanji

Department of Family Medicine

Background. Metabolic Syndrome (MetS) is a major public health concern.

Objective. The aim of this study was to estimate the frequency of MetS, its components, and factors associated with MetS amongst apparently healthy individuals in Pakistan.

Methods. A retrospective cross-sectional study was conducted at the executive Clinics of Aga Khan Hospital, Pakistan. Medical records of patients aged ≥18 years visiting the clinics from July 2011 to December 2011 were consecutively reviewed. Records in which either MetS components data or 10% of overall data was missing were excluded. A total of 1329 participants’ records was included in final analysis. Data was …

Identifying Sm22 As A Key Player In Arterial Diseases, Jianbin Shen

Wayne State University Dissertations

Background : Expression of vascular smooth muscle cell (VSMC) cytoskeleton markers including SM22 is down-regulated in arterial diseases including atherosclerosis where inflammation and osteochondrogenesis are present. However, the role of this downregulation in arterial pathogenesis is unknown. Hypothesis : Downregulation of SM22 may actively contribute to arterial pathogenesis. Methods : Five Sm22 knockout (Sm22^-/-) mice and their wild type littermates were subjected to carotid artery denudation, an artery injury model. Analyses were conducted on carotid arteries 2 weeks after injury. Primary VSMCs were isolated from mouse aortas and investigated individually at passage 2 to 4. Sm22 knockdown was …

A Role For Reactive Oxygen Species In Photodynamic Therapy, Michael Price

Wayne State University Dissertations

Photodynamic therapy (PDT) is based on the ability of certain photosensitizing agents to selectively localize in neoplastic cells and their vasculature. Subsequent irradiation at a wavelength corresponding to a photosensitizer absorbance band excites the photosensitizer molecules, leading to energy transfer reactions and fluorescence. It was initially concluded that the phototoxic effect occurred when energy from the excited state of the photosensitizer was transferred to dissolved oxygen to form singlet oxygen. This product has a very brief half-life and will cause cellular damage only in the immediate vicinity of its formation. But an excited-state photosensitizer can also interact with oxygen to …

Substance P And The Host Immune Response, Megan Elizabeth Foldenauer

Wayne State University Dissertations

This body of work examined the mechanism by which SP regulates host immunity, specifically, its control of growth factors and TLR expression in the P. aeruginosa-infected cornea. The role of mTOR and VIP in corneal infection and inflammation also was tested.

SP has a dual role in bacterial infection, unexpectedly upregulating growth factor production. This was accompanied by macrophage-specific upregulation of pro-inflammatory cytokines, downregulation of anti-inflammatory cytokines, and upregulation of anti-apoptotic genes, as well as a decrease in arginase-producing macrophages (M2 cells), important in stromal healing in these mice. All of these lead to worsened disease, despite the stimulatory effects …

Are We Anesthesiologists, Aware About The Incidence Of Muscle Stiffness Associated With Remifentanil?, Gauhar Afshan

Department of Anaesthesia

No abstract provided.

Gentamicin Rapidly Inhibits Mitochondrial Metabolism In High-Frequency Cochlear Outer Hair Cells, Heather Jensen Smith, Richard Hallworth, Michael G. Nichols

Journal Articles: Eppley Institute

Aminoglycosides (AG), including gentamicin (GM), are the most frequently used antibiotics in the world and are proposed to cause irreversible cochlear damage and hearing loss (HL) in 1/4 of the patients receiving these life-saving drugs. Akin to the results of AG ototoxicity studies, high-frequency, basal turn outer hair cells (OHCs) preferentially succumb to multiple HL pathologies while inner hair cells (IHCs) are much more resilient. To determine if endogenous differences in IHC and OHC mitochondrial metabolism dictate differential sensitivities to AG-induced HL, IHC- and OHC-specific changes in mitochondrial reduced nicotinamide adenine dinucleotide (NADH) fluorescence during acute (1 h) GM treatment …

Infectious Intracranial Aneurysms: Collaboration For Treatment Success, Erin M. Conahan Rn, Bsn, Cnrn

Patient Care Services / Nursing

No abstract provided.

Genes Adopt Non-Optimal Codon Usage To Generate Cell Cycle-Dependent Oscillations In Protein Levels., Milana Frenkel-Morgenstern, Tamar Danon, Thomas Christian, Takao Igarashi, Lydia Cohen, Ya-Ming Hou, Lars Juhl Jensen

Department of Biochemistry and Molecular Biology Faculty Papers

The cell cycle is a temporal program that regulates DNA synthesis and cell division. When we compared the codon usage of cell cycle-regulated genes with that of other genes, we discovered that there is a significant preference for non-optimal codons. Moreover, genes encoding proteins that cycle at the protein level exhibit non-optimal codon preferences. Remarkably, cell cycle-regulated genes expressed in different phases display different codon preferences. Here, we show empirically that transfer RNA (tRNA) expression is indeed highest in the G2 phase of the cell cycle, consistent with the non-optimal codon usage of genes expressed at this time, and lowest …

Resistance Patterns Of Mycobacterium Tuberculosis Isolates From Pulmonary Tuberculosis Patients In Nairobi, Perpetual Wangui Ndung’U, Samuel Kariuki, Zipporah Ng’Ang’A, Gunturu Revathi

Pathology, East Africa

Introduction: In Kenya, which ranks thirteenth of 27 high tuberculosis burden countries, diagnosis is based on Ziehl-Neelsen staining alone and patients are treated without information on sensitivity patterns. This study aimed to determine resistance patterns of Mycobacterium tuberculosis isolated from pulmonary samples.

Methodology: Pulmonary tuberculosis patients in Nairobi were randomly sampled after informed consent and recruited into the study using a structured questionnaire. Specimens were cultured in liquid and solid media, and drug susceptibility tests were performed for first-line drugs including (isoniazid, rifampin, streptomycin, ethambutol and pyrazinamide).

Results: Eighty-six (30%) of 286 isolates were resistant to at least one of …

The Role Of The Microenvironment And Th17 Cells In The Carcinogenesis Of Head And Neck Squamous Cell Carcinoma, Danielle Woodford

MUSC Theses and Dissertations

Head and neck cancer is the sixth most common cancer worldwide. Despite advances in diagnosis and treatment, the survival rates for patients with head and neck cancer have remained relatively unchanged for the past 30 years. Head and Neck Squamous Cell Carcinoma is a highly aggressive malignancy with a 5-year survival rate of only 50%. Of the patients diagnosed every year, 5% of head and neck squamous cell carcinoma (HNSCC) patients develop additional primary tumors, an effect that is thought to be associated with the high degree of immune suppression induced by the tumor. During the premalignant stage of HNSCC, …