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Articles 19531 - 19560 of 25997
Full-Text Articles in Entire DC Network
Prostate-Specific Antigen As A Risk Factor For Skeletal Metastasis In Native Ethnic African Men With Prostate Cancer: A Case-Control Study, Mahmood Qureshi, Khalid Makhdomi, William Stones
Prostate-Specific Antigen As A Risk Factor For Skeletal Metastasis In Native Ethnic African Men With Prostate Cancer: A Case-Control Study, Mahmood Qureshi, Khalid Makhdomi, William Stones
Imaging & Diagnostic Radiology, East Africa
Prostate cancer is the most common noncutaneous cancer in males. Men of African origin are at a significantly higher risk as reflected in the higher incidence and mortality rates in this racial group. Metastases incidence increases parallel to serum levels of prostate-specific antigen (PSA), contributing significantly to morbidity and mortality. Staging of the disease involves bone scans, which are sensitive in detecting skeletal metastases. Suggestions that these scans may be omitted in some situations in patients with low prostate specific antigen levels have drawn attention to the matter. In this case-control study, using radiology and pathology records, a registry of …
Characterization Of A New Chlorovirus Type With Permissive And Non-Permissive Features On Phylogenetically Related Algal Strains, Cristian F. Quispe, Ahmed Esmael, Olivia Sonderman, Michelle Mcquinn, Irina Agarkova, Mohammed Battah, Garry A. Duncan, David D. Dunigan, Timothy P. L. Smith, Cristina Decastro, Immacolata Speciale, Fangrui Ma, James L. Van Etten
Characterization Of A New Chlorovirus Type With Permissive And Non-Permissive Features On Phylogenetically Related Algal Strains, Cristian F. Quispe, Ahmed Esmael, Olivia Sonderman, Michelle Mcquinn, Irina Agarkova, Mohammed Battah, Garry A. Duncan, David D. Dunigan, Timothy P. L. Smith, Cristina Decastro, Immacolata Speciale, Fangrui Ma, James L. Van Etten
Nebraska Center for Virology: Faculty Publications
A previous report indicated that prototype chlorovirus PBCV-1 replicated in two Chlorella variabilis algal strains, NC64A and Syngen 2-3, that are ex-endosymbionts isolated from the protozoan Paramecium bursaria. Surprisingly, plaque-forming viruses on Syngen 2-3 lawns were often higher than on NC64A lawns from indigenous water samples. These differences led to the discovery of viruses that exclusively replicate in Syngen 2-3 cells, named Only Syngen (OSy) viruses. OSy-NE5, the prototype virus for the proposed new species, had a linear dsDNA genome of 327 kb with 44-nucleotide-long, incompletely base-paired, covalently closed hairpin ends. Each hairpin structure was followed by an identical …
The Effect Of Alcohol Prep Pads And Blood Drop Number On Capillary Blood Glucose Values, Joanna E. Foos
The Effect Of Alcohol Prep Pads And Blood Drop Number On Capillary Blood Glucose Values, Joanna E. Foos
Honors Theses and Capstones
Capillary blood glucose monitoring is a common nursing procedure. However, no consensus exists regarding which drop of blood to test (drop 1 vs. drop 2) and whether using alcohol pads to prepare the fingertip affects blood glucose values. The purpose of this study was to evaluate the impact of these factors and contribute to the development of evidence-based nursing protocols for capillary blood glucose monitoring. A quantitative, quasi-experimental study was conducted in a laboratory at the University of New Hampshire. 96 volunteers were randomly assigned to one of three groups. Each group underwent a pair of capillary blood glucose tests …
Mass Deworming To Improve Developmental Health And Wellbeing Of Children In Low-Income And Middle-Income Countries: A Systematic Review And Network Meta-Analysis, Vivian A. Welch, Elizabeth Ghogomu, Alomgir Hossain,, Shally Awasthi, Zulfiqar Ahmed Bhutta, Chisa Cumberbatch, Robert Fletcher, Jessie Mcgowan, Shari Krishnaratne, Elizabeth Kristjansson
Mass Deworming To Improve Developmental Health And Wellbeing Of Children In Low-Income And Middle-Income Countries: A Systematic Review And Network Meta-Analysis, Vivian A. Welch, Elizabeth Ghogomu, Alomgir Hossain,, Shally Awasthi, Zulfiqar Ahmed Bhutta, Chisa Cumberbatch, Robert Fletcher, Jessie Mcgowan, Shari Krishnaratne, Elizabeth Kristjansson
Department of Paediatrics and Child Health
Background: Soil-transmitted helminthiasis and schistosomiasis, considered among the neglected tropical diseases by WHO, affect more than a third of the world’s population, with varying intensity of infection. We aimed to evaluate the eff ects of mass deworming for soil-transmitted helminths (with or without deworming for schistosomiasis or cointerventions) on growth, educational achievement, cognition, school attendance, quality of life, and adverse effects in children in endemic helminth areas.
Methods: We searched 11 databases up to Jan 14, 2016, websites and trial registers, contacted authors, and reviewed reference lists. We included studies published in any language of children aged 6 months to …
Functions Of Atr/Mec1 In Meiosis And The Cell Cycle, Layne Weatherford
Functions Of Atr/Mec1 In Meiosis And The Cell Cycle, Layne Weatherford
Wayne State University Dissertations
Mec1 is a protein kinase in S. cerevisiae that is critical for the DNA damage checkpoint response, and is the yeast orthologue of the human ATR protein. Cancer cells rely on ATR to arrest the cell cycle and allow sufficient time to repair DNA damage before proceeding through the cell cycle, and ATR inhibitors have been developed as possible anti-cancer agents. DBF4 is the regulatory subunit of DBF4-dependent kinase (DDK) that regulates initiation of DNA replication and is overexpressed in a number of different cancer types. To better understand ATR and DBF4 function, we took advantage of yeast genetics to …
Understanding Zoonotic Enteric Disease In Minnesota: A Spatio Temporal Analysis And Causal Theory Approach, Suchismita Swain
Understanding Zoonotic Enteric Disease In Minnesota: A Spatio Temporal Analysis And Causal Theory Approach, Suchismita Swain
All Graduate Theses, Dissertations, and Other Capstone Projects
With 75 percent of diseases in humans having origin in animals or animal products, zoonotic diseases have an enormous impact on the global disease burden. A significant portion of this can be attributed to bacterial zoonotic enteric pathogens. This study was designed to locate clusters of bacterial zoonotic enteric outbreaks in the State of Minnesota and study the seasonality of these outbreaks. In addition to identifying hot spots for zoonotic enteric outbreaks in Minnesota, the study also aimed to design a causal model to improve understanding of risk factors. This thesis considered only the bacterial zoonotic pathogens with significant disease …
Can Coloring Pre-Structured Designs That Have Complexity Aid In Reducing Anxiety In Those Greater Than 17 Years Of Age?, Kaitlyn P. Probasco
Can Coloring Pre-Structured Designs That Have Complexity Aid In Reducing Anxiety In Those Greater Than 17 Years Of Age?, Kaitlyn P. Probasco
PCOM Physician Assistant Studies Student Scholarship
Objective: The objective of this selective evidence based medicine (EBM) review is to determine whether or not coloring mandalas or designs that have complexity and structure can aid in reducing anxiety in those greater than 17 years of age.
Study Design: Review of three English language randomized controlled trials (RCTs), published in 2007, 2012, and 2015.
Data Sources: Three randomized controlled trials published in peer-reviewed journals obtained using PubMed and EBSCOhost.
Outcomes Measured: The Curry and Kasser study and the van dV and Serice7study both used the State Anxiety Inventory (SAI) to record anxiety. The Henderson …
Can Contrast Harmonic Endoscopic Ultrasonography Replace Endoscopic Ultrasonography-Guided Fine-Needle Aspiration In Patients With Solid Pancreatic Lesions? An American Perspective., Joseph Yoo, Linda H. Yan, Ali A. Siddiqui
Can Contrast Harmonic Endoscopic Ultrasonography Replace Endoscopic Ultrasonography-Guided Fine-Needle Aspiration In Patients With Solid Pancreatic Lesions? An American Perspective., Joseph Yoo, Linda H. Yan, Ali A. Siddiqui
Division of Internal Medicine Faculty Papers & Presentations
No abstract provided.
Consequences Of Untreated Obstructive Sleep Apnea, Binyamin S. Kanter
Consequences Of Untreated Obstructive Sleep Apnea, Binyamin S. Kanter
The Science Journal of the Lander College of Arts and Sciences
Over the past few years, awareness of the prevalence of obstructive sleep apnea has significantly increased. Indeed, sleep apnea may be more common now with the increasing incidence of obesity and the growing number of elderly individuals in our population. How serious is this condition, and what are the potential long-term effects and consequences of obstructive sleep apnea if left untreated? An overlap of many serious conditions with obstructive sleep apnea has been noticed. These conditions include hypertension, heart disease and failure, stroke, diabetes, neurological diseases, depression, and a number of other serious health concerns. The purpose of this paper …
Ambulatory Hemodynamic Monitoring Reduces Heart Failure Hospitalizations In "Real-World" Clinical Practice, Akshay S. Desai, Arvind Bhimaraj, Rita Jermyn, Jamie M. Pelzel
Ambulatory Hemodynamic Monitoring Reduces Heart Failure Hospitalizations In "Real-World" Clinical Practice, Akshay S. Desai, Arvind Bhimaraj, Rita Jermyn, Jamie M. Pelzel
Articles
BACKGROUND:
In the CHAMPION (CardioMEMS Heart Sensor Allows Monitoring of Pressure to Improve Outcomes in New York Heart Association [NYHA] Functional Class III Heart Failure Patients) trial, heart failure hospitalization (HFH) rates were lower in patients managed with guidance from an implantable pulmonary artery pressure sensor compared with usual care.
OBJECTIVES:
This study examined the effectiveness of ambulatory hemodynamic monitoring in reducing HFH outside of the clinical trial setting.
METHODS:
We conducted a retrospective cohort study using U.S. Medicare claims data from patients undergoing pulmonary artery pressure sensor implantation between June 1, 2014, and December 31, 2015. Rates of HFH …
Risk Of Glucose Intolerance And Gestational Diabetes Mellitus In Relation To Maternal Habitual Snoring During Early Pregnancy., Chunfang Qiu, Wayne Lawrence, Bizu Gelaye, Lee Stoner, Ihunnaya O Frederick, Daniel A Enquobahrie, Tanya K Sorensen, Michelle A Williams
Risk Of Glucose Intolerance And Gestational Diabetes Mellitus In Relation To Maternal Habitual Snoring During Early Pregnancy., Chunfang Qiu, Wayne Lawrence, Bizu Gelaye, Lee Stoner, Ihunnaya O Frederick, Daniel A Enquobahrie, Tanya K Sorensen, Michelle A Williams
Articles, Abstracts, and Reports
BACKGROUND: Obstructive sleep apnea (OSA) or habitual snoring is known to be associated with impaired glucose tolerance and type 2 diabetes among both men and non-pregnant women. We examined the association of habitual snoring during early pregnancy with risk of impaired glucose tolerance (IGT) and gestational diabetes mellitus (GDM).
METHODS: A cohort of 1,579 women was interviewed during early pregnancy. We collected information about snoring frequency during early pregnancy. Results from screening and diagnostic tests for IGT and GDM were abstracted from medical records. Multivariate logistic regression models were fitted to estimate odds ratios (OR) and 95% confidence intervals (95% …
A Comparison Of Sex Differences In Psychotropic Medication Use In Older People With Alzheimer's Disease In The Us And Finland, Daniela C. Moga, Heidi Taipale, Anna-Maija Tolppanen, Antti Tanskanen, Jari Tiihonen, Sirpa Hartikainen, Qishan Wu, Gregory A. Jicha, Danijela Gnjidic
A Comparison Of Sex Differences In Psychotropic Medication Use In Older People With Alzheimer's Disease In The Us And Finland, Daniela C. Moga, Heidi Taipale, Anna-Maija Tolppanen, Antti Tanskanen, Jari Tiihonen, Sirpa Hartikainen, Qishan Wu, Gregory A. Jicha, Danijela Gnjidic
Pharmacy Practice and Science Faculty Publications
Aims—Given the high prevalence of psychotropic medication use in people with dementia and the potential for different prescribing practices in men and women, our study aimed to investigate sex differences in psychotropic medication use in older adults with Alzheimer’s disease (AD) living in the US and Finland.
Methods—We used data collected between 2005 and 2011 as part of the National Alzheimer’s Coordinating Center (NACC) in the US, and Medication use and Alzheimer’s disease (MEDALZ) cohorts in Finland. We evaluated psychotropic medication use (antidepressant, antipsychotic, anxiolytic, sedative, or hypnotic) in participants aged 65 years or older. We employed multivariable …
Unconditional Government Cash Transfer In Support Of Orphaned And Vulnerable Adolescents In Western Kenya: Is There An Association With Psychological Wellbeing?, Sylvia Shangani, Don Operario, Becky Genberg, Kipruto Kirwa, Miriam Midoun, Lukoye Atwoli, David Ayuku, Omar Galárraga, Paula Braitstein
Unconditional Government Cash Transfer In Support Of Orphaned And Vulnerable Adolescents In Western Kenya: Is There An Association With Psychological Wellbeing?, Sylvia Shangani, Don Operario, Becky Genberg, Kipruto Kirwa, Miriam Midoun, Lukoye Atwoli, David Ayuku, Omar Galárraga, Paula Braitstein
Community & Environmental Health Faculty Publications
Background
Orphaned and vulnerable adolescents (OVA) in sub-Saharan Africa are at greater risk for adverse psychological outcomes compared with their non-OVA counterparts. Social interventions that provide cash transfers (CTs) have been shown to improve health outcomes among young people, but little is known about their impact on the psychological wellbeing of OVA.
Objective
Among OVA in western Kenya, we assessed the association between living in a household that received monthly unconditional government CTs and psychological wellbeing.
Methods
We examined the likelihood of depression, anxiety, post-traumatic stress symptoms (PTSS) and positive future outlook among 655 OVA aged between 10 and 18 …
Activation And Expansion Of Natural Killer Cells For Cancer Immunotherapy With Ex21 Exosomes, Sara Khederzadeh
Activation And Expansion Of Natural Killer Cells For Cancer Immunotherapy With Ex21 Exosomes, Sara Khederzadeh
Honors Undergraduate Theses
In the field of cancer immunotherapy, NK cells are recognized for their ability to provide a form of innate immunity against tumor cells. However, the average abundance of NK cells in the blood can be as low as 5% of the total lymphocyte population. As a result, it has been a focus to find novel therapies to expand NK cells in vitro while subsequently enhancing the cytotoxicity of these cells. Previously-defined methods include the minimal expansion of NK cells with high levels of cytokines such as IL-2 and IL-15, as well as co-culturing NK cells with feeder cell populations that …
The Default Mode Network And Executive Function: Influence Of Age, White Matter Connectivity, And Alzheimer’S Pathology, Christopher A. Brown
The Default Mode Network And Executive Function: Influence Of Age, White Matter Connectivity, And Alzheimer’S Pathology, Christopher A. Brown
Theses and Dissertations--Neuroscience
The default mode network (DMN) consists of a set of interconnected brain regions supporting autobiographical memory, our concept of the self, and the internal monologue. These processes must be maintained at all times and consume the highest amount of the brain’s energy during its baseline state. However, when faced with an active, externally-directed cognitive task, the DMN shows a small, but significant, decrease in activity. The reduction in DMN activity during the performance of an active, externally-directed task compared to a baseline state is termed task-induced deactivation (TID), which is thought to ‘free-up’ resources required to respond to external demands. …
Gastrointestinal Bleeding Events And Statin Use: A Large Propensity Score-Matched Retrospective Cohort Study, Ashley I. Martinez
Gastrointestinal Bleeding Events And Statin Use: A Large Propensity Score-Matched Retrospective Cohort Study, Ashley I. Martinez
Theses and Dissertations--Pharmacy
Literature is conflicting regarding the association between statin use and gastrointestinal (GI) bleeding. This study sought to determine whether there is an association between statin use and GI bleeding by comparing incidence of gastrointestinal events between statin users and an active comparator group.
Data was obtained from a large administrative claims database composed of subjects enrolled in a selection of insurance plans throughout the United States from 2009-2014. New statin users (exposed) and thyroid medication users (active comparator, unexposed) were followed from the baseline period (one year prior to medication initiation) until first event, discontinuation, or disenrollment. Subjects were matched …
Factors Regulating Features Of Metabolic Syndrome, Sonja S. Pijut
Factors Regulating Features Of Metabolic Syndrome, Sonja S. Pijut
Theses and Dissertations--Pharmacy
The collective presence of central obesity, low HDL-cholesterol, and elevated triglycerides, blood pressure, and fasting blood glucose constitutes Metabolic Syndrome (MetS), a disease state that increases the risk of cardiovascular disease (CVD) and Type 2 Diabetes Mellitus (T2DM). Nonalcoholic fatty liver disease (NAFLD), present in up to 90% of obese adults, is also linked to MetS. As in CVD, disruptions in cholesterol metabolism play a contributing role in the development of T2DM and NAFLD. Genes involved in cholesterol synthesis, secretion, and catabolism are diurnally regulated in the liver and adipose. Disruptions in the sleep-wake cycle are thought to potentiate metabolic …
The Role Of Progesterone Receptor Membrane Component 1 In Receptor Trafficking And Disease, Kaia K. Hampton
The Role Of Progesterone Receptor Membrane Component 1 In Receptor Trafficking And Disease, Kaia K. Hampton
Theses and Dissertations--Pharmacology and Nutritional Sciences
The progesterone receptor membrane component 1 (PGRMC1) is a multifunctional protein with a heme-binding domain that promotes cellular signaling via receptor trafficking, and is essential for some elements of tumor growth and metastasis. PGRMC1 is upregulated in breast, colon, lung and thyroid tumors. We expanded the analysis of PGRMC1 in the clinical setting, and report the first analysis of PGRMC1 in human oral cavity and ovarian tumors and found PGRMC1 to correlate with lung and ovarian cancer patient survival. Furthermore, we discovered a specific role for PGRMC1 in cancer stem cell viability. PGRMC1 directly associates with the epidermal growth factor …
New Insights Into Post-Sepsis Muscle Weakness Elucidated Using A Novel Animal Model, Allison M. Steele
New Insights Into Post-Sepsis Muscle Weakness Elucidated Using A Novel Animal Model, Allison M. Steele
Theses and Dissertations--Physiology
Sepsis is a severe life-threatening critical illness that damages multiple physiological systems. After hospital discharge, more than 70% of severe sepsis survivors report profound weakness which significantly impacts quality of life. Such weakness gives rise to new limitations of daily living, which ultimately leads to loss of independence in many patients. Despite wide recognition of this serious issue by clinicians and researchers alike, the mechanisms contributing to chronic skeletal muscle dysfunction after sepsis are not well understood. Lack of progress in this field is largely due to the absence of an appropriate animal model; current models are either too mild …
Anti-Proliferative Role Of Recombinant Lethal Toxin Of Bacillus Anthracis On Primary Mammary Ductal Carcinoma Cells Revealing Its Therapeutic Potential, Rekha Khandia, Bramhadev Pattnaik, Katherikamem Rajukumar, Atul Pateriya, Sandeep Bhatia, Harshad Murugkar, Anil Prakash, Hare Krishna Pradhan, Kildeep Dhama, Ashol Munjal, Sunil K. Joshi
Anti-Proliferative Role Of Recombinant Lethal Toxin Of Bacillus Anthracis On Primary Mammary Ductal Carcinoma Cells Revealing Its Therapeutic Potential, Rekha Khandia, Bramhadev Pattnaik, Katherikamem Rajukumar, Atul Pateriya, Sandeep Bhatia, Harshad Murugkar, Anil Prakash, Hare Krishna Pradhan, Kildeep Dhama, Ashol Munjal, Sunil K. Joshi
Bioelectrics Publications
Bacillus anthracis secretes three secretary proteins; lethal factor (LF), protective antigen (PA) and edema factor (EF). The LF has ability to check proliferation of mammary tumors, chiefly depending on mitogen activated protein kinase (MAPK) signaling pathway. Evaluation of therapeutic potential of recombinant LF (rLF), recombinant PA (rPA) and lethal toxin (rLF + rPA = LeTx) on the primary mammary ductal carcinoma cells revealed significant (p < 0.01) reduction in proliferation of tumor cells with mean inhibition indices of 28.0 ±1.37% and 19.6 ± 1.47% respectively. However, treatment with rPA alone had no significant anti-proliferative effect as evident by low mean inhibition index of 3.4 ± 3.87%. The higher inhibition index observed for rLF alone as compared to LeTx is contrary to the existing knowledge on LF, which explains the requirement of PA dependent endocytosis for its enzymatic activity. Therefore, the plausible existence of PA independent mode of action of LF including direct receptor mediated endocytosis or modulation of signal transduction cascade via unknown means is hypothesized. In silico protein docking analysis of other cellular receptors for any plausibility to play the role of receptor for LF revealed c-Met receptor showing strongest affinity for LF (H bond = 19; Free energy = …
Prevention Of Ovarian And Endometrial Cancer By Combined Oral Contraceptives: A Demographics Study, Joanna S. Heywood
Prevention Of Ovarian And Endometrial Cancer By Combined Oral Contraceptives: A Demographics Study, Joanna S. Heywood
CMC Senior Theses
Endometrial cancer is the most common gynecologic cancer with 54,870 cases occurring in the United States in 2015 and causing 10,170 deaths, an 18.5% mortality rate (Elit and Reade, 2015). Ovarian cancer, while less common, is much more fatal. In 2015 in the United States, 21,290 cases occurred and resulted in 14,180 deaths, a 66.6% mortality rate. This mortality rate makes ovarian cancer the fifth most deadly cancer for women in the United States, which is largely explained by ineffective screening strategies and limited treatment possibilities (Cramer, 2012). Thus, developing effective prevention strategies is especially important to saving the lives …
Immunohistochemical P21 Expression In Breast Cancer: Association With Patient And Tumour Characteristics, Benjamin N. Njihia
Immunohistochemical P21 Expression In Breast Cancer: Association With Patient And Tumour Characteristics, Benjamin N. Njihia
Master of Medicine in General Surgery
Introduction: Molecular characterisation of the breast cancer has allowed for targeted therapies that are improving outcomes. The gains achieved by these treatments have fuelled the search for other targets, including cyclin-dependent kinase inhibitors such as p21. p21 expression in breast cancer has been shown to be variably associated with clinical and pathological parameters in different populations. It is possible that either methodological or biological differences underlie these variations. Objective: The current study sought to determine the association of p21 expression and clinico-pathological parameters in breast cancer patients at the Aga Khan University Hospital in Nairobi, Kenya. Methods: Clinically annotated tissue …
Neuropathological And Genetic Correlates Of Survival And Dementia Onset In Synucleinopathies: A Retrospective Analysis, David J. Irwin, Murray Grossman, Daniel Weintraub, Howard I. Hurtig, John E. Duda, Sharon X. Xie, Edward B. Lee, Vivianna M. Van Deerlin, Oscar L. Lopez, Julia K. Kofler, Peter T. Nelson, Gregory A. Jicha, Randy Woltjer, Joseph F. Quinn, Jeffery Kaye, James B. Leverenz, Debby Tsuang, Katelan Longfellow, Dora Yearout, Walter Kukull, C. Dirk Keene, Thomas J. Montine, Cyrus P. Zabetian, John Q. Trojanowski
Neuropathological And Genetic Correlates Of Survival And Dementia Onset In Synucleinopathies: A Retrospective Analysis, David J. Irwin, Murray Grossman, Daniel Weintraub, Howard I. Hurtig, John E. Duda, Sharon X. Xie, Edward B. Lee, Vivianna M. Van Deerlin, Oscar L. Lopez, Julia K. Kofler, Peter T. Nelson, Gregory A. Jicha, Randy Woltjer, Joseph F. Quinn, Jeffery Kaye, James B. Leverenz, Debby Tsuang, Katelan Longfellow, Dora Yearout, Walter Kukull, C. Dirk Keene, Thomas J. Montine, Cyrus P. Zabetian, John Q. Trojanowski
Sanders-Brown Center on Aging Faculty Publications
Background
Great heterogeneity exists in survival and the interval between onset of motor symptoms and dementia symptoms across synucleinopathies. We aimed to identify genetic and pathological markers that have the strongest association with these features of clinical heterogeneity in synucleinopathies.
Methods
In this retrospective study, we examined symptom onset, and genetic and neuropathological data from a cohort of patients with Lewy body disorders with autopsy-confirmed α synucleinopathy (as of Oct 1, 2015) who were previously included in other studies from five academic institutions in five cities in the USA. We used histopathology techniques and markers to assess the burden of …
Mammogram And Tomosynthesis Classification Using Convolutional Neural Networks, Xiaofei Zhang
Mammogram And Tomosynthesis Classification Using Convolutional Neural Networks, Xiaofei Zhang
Theses and Dissertations--Computer Science
Mammography is the most widely used method of screening for breast cancer. Traditional mammography produces two-dimensional X-ray images, while advanced tomosynthesis mammography produces reconstructed three-dimensional images. Due to high variability in tumor size and shape, and the low signal-to-noise ratio inherent to mammography, manual classification yields a significant number of false positives, thereby contributing to an unnecessarily large number of biopsies performed to reduce the risk of misdiagnosis. Achieving high diagnostic accuracy requires expertise acquired over many years of experience as a radiologist.
The convolutional neural network (CNN) is a popular deep-learning construct used in image classification. The convolutional process …
Genome-Scale Crispr-Cas9 Knockout Screen Identifies Huwe1 As A Modifier Of Egfr Dependence In Non-Small Cell Lung Cancer Cells, Jon Dimaina
MUSC Theses and Dissertations
Non-small cell lung cancers (NSCLC) with epidermal growth factor receptor (EGFR) gene mutations can exhibit a strong dependence on mutant EGFR signaling for growth and survival. They are also sensitive to EGFR tyrosine kinase inhibitors (TKIs), which provide superior clinical benefits to conventional chemotherapy. However, despite initial response, most patients experience relapse with resistant tumors within a year. This study aims to identify modifiers of dependence on mutant EGFR signaling and the mechanisms by which they do so in order to improve therapeutic strategies and outcomes. A genome-scale CRISPR-Cas9 genetic knockout screen was conducted to identify genes whose loss-of-function confer …
Cardiac Chemical Exchange Saturation Transfer Mr Imaging Tracking Of Cell Survival Or Rejection In Mouse Models Of Cell Therapy, Ashley L. Pumphrey, Shaojing Ye, Zhengshi Yang, Jennifer Simkin, John C. Gensel, Ahmed Abdel-Latif, Moriel H. Vandsburger
Cardiac Chemical Exchange Saturation Transfer Mr Imaging Tracking Of Cell Survival Or Rejection In Mouse Models Of Cell Therapy, Ashley L. Pumphrey, Shaojing Ye, Zhengshi Yang, Jennifer Simkin, John C. Gensel, Ahmed Abdel-Latif, Moriel H. Vandsburger
Saha Cardiovascular Research Center Faculty Publications
Purpose:
To examine whether cardiac chemical exchange saturation transfer (CEST) imaging can be serially and noninvasively used to probe cell survival or rejection after intramyocardial implantation in mice.
Materials and Methods:
Experiments were compliant with the National Institutes of Health Guidelines on the Use of Laboratory Animals and approved by the Institutional Animal Care and Use Committee. One million C2C12 cells labeled with either europium (Eu) 10-(2-hydroxypropyl)-1,4,7-tetraazacyclododecane-1,4,7-triacetic acid (HP-DO3A) or saline via the hypotonic swelling technique were implanted into the anterior-lateral left ventricular wall in C57BL/6J (allogeneic model, n = 17) and C3H (syngeneic model, n = 13) mice. Imaging …
Novel Hla-Dp Region Susceptibility Loci Associated With Severe Acute Gvhd., Rakesh K. Goyal, S J. Lee, T Wang, M Trucco, M Haagenson, S R. Spellman, M Verneris, R E. Ferrell
Novel Hla-Dp Region Susceptibility Loci Associated With Severe Acute Gvhd., Rakesh K. Goyal, S J. Lee, T Wang, M Trucco, M Haagenson, S R. Spellman, M Verneris, R E. Ferrell
Manuscripts, Articles, Book Chapters and Other Papers
Despite HLA allele matching, significant acute GvHD remains a major barrier to successful unrelated donor BMT. We conducted a genome-wide association study (GWAS) to identify recipient and donor genes associated with the risk of acute GvHD. A case-control design (grade III-IV versus no acute GvHD) and pooled GWA approach was used to study European-American recipients with hematological malignancies who received myeloablative conditioning non-T-cell-depleted first transplantation from HLA-A, -B, -C, -DRB1, -DQB1 allele level (10/10) matched unrelated donors. DNA samples were divided into three pools and tested in triplicate using the Affymetrix Genome-wide SNP Array 6.0. We identified three novel susceptibility …
Appendectomy Versus Non-Operative Treatment For Acute Uncomplicated Appendicitis In Children: Study Protocol For A Multicentre, Open-Label, Non-Inferiority, Randomised Controlled Trial., Nigel J. Hall, Simon Eaton, Olivier Abbo, Alexis P. Arnaud, Marianne Beaudin, Mary Brindle, Andreana Bütter, Dafydd Davies, Tim Jancelewicz, Kathy Johnson, Richard Keijzer, Eveline Lapidus-Krol, Martin Offringa, Nelson Piché, Risto Rintala, Erik Skarsgard, Jan F. Svensson, Wendy J. Ungar, Tomas Wester, Andrew R. Willan, Augusto Zani, Shawn D. St Peter, Agostino Pierro
Appendectomy Versus Non-Operative Treatment For Acute Uncomplicated Appendicitis In Children: Study Protocol For A Multicentre, Open-Label, Non-Inferiority, Randomised Controlled Trial., Nigel J. Hall, Simon Eaton, Olivier Abbo, Alexis P. Arnaud, Marianne Beaudin, Mary Brindle, Andreana Bütter, Dafydd Davies, Tim Jancelewicz, Kathy Johnson, Richard Keijzer, Eveline Lapidus-Krol, Martin Offringa, Nelson Piché, Risto Rintala, Erik Skarsgard, Jan F. Svensson, Wendy J. Ungar, Tomas Wester, Andrew R. Willan, Augusto Zani, Shawn D. St Peter, Agostino Pierro
Manuscripts, Articles, Book Chapters and Other Papers
Background: Appendectomy is considered the gold standard treatment for acute appendicitis. Recently the need for surgery has been challenged in both adults and children. In children there is growing clinician, patient and parental interest in non-operative treatment of acute appendicitis with antibiotics as opposed to surgery. To date no multicentre randomised controlled trials that are appropriately powered to determine efficacy of non-operative treatment (antibiotics) for acute appendicitis in children compared with surgery (appendectomy) have been performed.
Methods: Multicentre, international, randomised controlled trial with a non-inferiority design. Children (age 5-16 years) with a clinical and/or radiological diagnosis of acute uncomplicated appendicitis …
Yap And The Hippo Pathway In Pediatric Cancer., Atif Ahmed, Abdalla D. Mohamed, Melissa Gener, Weijie Li, Eugenio Taboada
Yap And The Hippo Pathway In Pediatric Cancer., Atif Ahmed, Abdalla D. Mohamed, Melissa Gener, Weijie Li, Eugenio Taboada
Manuscripts, Articles, Book Chapters and Other Papers
The Hippo pathway is an important signaling pathway that controls cell proliferation and apoptosis. It is evolutionarily conserved in mammals and is stimulated by cell-cell contact, inhibiting cell proliferation in response to increased cell density. During early embryonic development, the Hippo signaling pathway regulates organ development and size, and its functions result in the coordinated balance between proliferation, apoptosis, and differentiation. Its principal effectors, YAP and TAZ, regulate signaling by the embryonic stem cells and determine cell fate and histogenesis. Dysfunction of this pathway contributes to cancer development in adults and children. Emerging studies have shed light on the upregulation …
Multiple Targets For Novel Therapy Of Fsgs Associated With Circulating Permeability Factor., Virginia J. Savin, Mukut Sharma, Jianping Zhou, David Genochi, Ram Sharma, Tarak Srivastava, Amna Ilahe, Pooja Budhiraja, Aditi Gupta, Ellen T. Mccarthy
Multiple Targets For Novel Therapy Of Fsgs Associated With Circulating Permeability Factor., Virginia J. Savin, Mukut Sharma, Jianping Zhou, David Genochi, Ram Sharma, Tarak Srivastava, Amna Ilahe, Pooja Budhiraja, Aditi Gupta, Ellen T. Mccarthy
Manuscripts, Articles, Book Chapters and Other Papers
A plasma component is responsible for altered glomerular permeability in patients with focal segmental glomerulosclerosis. Evidence includes recurrence after renal transplantation, remission after plasmapheresis, proteinuria in infants of affected mothers, transfer of proteinuria to experimental animals, and impaired glomerular permeability after exposure to patient plasma. Therapy may include decreasing synthesis of the injurious agent, removing or blocking its interaction with cells, or blocking signaling or enhancing cell defenses to restore the permeability barrier and prevent progression. Agents that may prevent the synthesis of the permeability factor include cytotoxic agents or aggressive chemotherapy. Extracorporeal therapies include plasmapheresis, immunoadsorption with protein A …