Medicine and Health Sciences Commons^™

" Does Educational Level Affect The Outcome Of Myocardial Infarction? ", Ahmed Magdy Ahmed Elsayed

Theses and Dissertations

Background: Heath awareness plays a major role in determining the outcomes of serious medical conditions specially when response time is crucial. STEMI patients are prone to serious compilations if they didn’t receive the appropriate treatment on time. Raising the health awareness of the community would result in seeking medical help at earlier stage of the disease. Earlier presentation to the medical center would result in better health outcomes. Certain factors form the health awareness of the community. This includes educational level, previous exposure to similar situations, and exposure to health awareness materials.

Methods: This is a cohort study in …

Can Mirna Be The Missing Link Between Parkinson’S Disease And Pesticides?, Fatma Gobba

Theses and Dissertations

Parkinson’s disease (PD) is a common neurodegenerative condition that leads to significant morbidity and a decline in the quality of life. It develops as a consequence of the loss of dopaminergic neurons in the substantia nigra pars compacta. Nevertheless, the development of PD is influenced by environmental factors, and the intricate nature of these relationships is further complicated by a multitude of factors, including the genetic backgrounds that are specific to populations and variations in environmental exposures, such as pesticides. Pesticides, consisting of a diverse family of chemicals commonly used in both agricultural and household settings to protect crops against …

Differential Levels Of Nutrients And Heavy Metals In Tilapia Collected From Drains In Egypt, Emily Burch

Theses and Dissertations

Tilapia is one of the most widely cultivated and consumed fish globally. In terms of human health, tilapia is an excellent source of protein, polyunsaturated fatty acids, and micronutrients. Tilapia and other aquatic species have become increasingly susceptible to contamination, as anthropogenic activities have been increasing around the world. Anthropogenetic activities often introduce high levels of contaminants, including heavy metals, into the marine environment. These contaminants often do not biodegrade, and they are absorbed by aquatic species. Contaminants can bioaccumulate and proceed in biomagnification up the fish food chain putting consumers at an increased risk of exposure. Heavy metals can …

Global Health Governance And Its Role In Health Equity: The Case Of Covid-19, Wafa Abu El Kheir-Mataria

Theses and Dissertations

In the globalized world, we are living in, health became the joint responsibility of individuals, their governments, and the global health governance system. Moreover, based on the right to health, health equity is increasingly in demand, and adopting it to a global level has become an even more complex task to realize. This thesis is focuses on health equity at a global level. The main research questions addressed are: Is health equity present at an intercountry /global level? how is it related to Global Health Governance (GHG)? Is GHG performing well in achieving health equity? what are the reasons behind …

Inoculation For Neutralizing Misinformation: Replication Of An Experiment On The Effect Of The Fake Experts’ Strategy In Climate Change Communication’S Context, Joseph Abdalla

Theses and Dissertations

Low acceptance of climate change and low support for its mitigation efforts can be due to public misconceptions towards climate change. Climate skeptics use a communication strategy of fake experts to spread misinformation through spokespersons who are not experts in the field. Inoculation can be a protective approach for tackling the misinformation’s effect. Previous research was conducted in the United States and Germany and was never conducted in Africa. This study aimed to complement the previous research findings with results for Egypt by replication an experiment by Cook et al. with a 2 × 2 between-subjects design. A total of …

Atomistic Assessment Of Drug-Phospholipid Interactions Consequent To Cancer Treatment: A Study Of Anthracycline Cardiotoxicity, Yara Elsayed Ahmed

Theses and Dissertations

Despite being one of the most effective chemotherapeutic agents developed to date, Anthracyclines are notorious for their cardiotoxicity. Their clinical use is frequently limited both in dosage and in prescription due to the severe cardiac damage they cause. The mechanism of anthracycline-induced cardiotoxicity is not yet fully understood. However, it is hypothesized that interactions with the myocardial membrane play an important role in imparting cardiotoxicity. In this study, we use molecular dynamics simulations and density functional theory calculations to study the anthracycline drug molecules and the interactions that they have with the myocardial membrane. We construct a myocardial membrane model …

Assessing The Correlation Between The Socioeconomic Level And Cognitive Function Among Older Adults In Egypt, Macy Abougabal

Theses and Dissertations

The number of older adults is increasing worldwide at an unprecedented rate. Some countries began to understand the challenges of aging, while others are still at the stage of comprehending the true dimensions of the situation. There is a global focus on aging research to appropriately mitigate the negative impact of aging and cognitive decline. Not only that dementia add economic pressure on governments, it also increase the psychological and physical burden of the caregivers. Scholars have previously studied socioeconomic level in three variables, namely work, education, and income, and their relationship with cognitive function. It was concluded that the …

Association Of Health Literacy With Demographic Features, Health-Related Behaviors, And Health Risk Indicators Among Egyptian Adults: Online Cross-Sectional Study, Rana Gamal Hassan

Theses and Dissertations

Health literacy is recognized as a significant determinant of health. Limited health literacy is a growing issue worldwide. It has a significant role facing the rising trends of non-communicable diseases (NCDs) through improving its modifiable risk factors. Therefore, studying the association between health literacy and different health-related behaviors is very important to guide both healthcare professionals and policy makers to set up the proper interventions. Our study aims to a) examine the health literacy levels among Egyptian adults, b) investigate the association of health literacy relative to socio-demographic features, health related behaviors, and self-reported health status. This is a cross-sectional …

Examining The Determinants Of Timeliness In Crises Policy Responses: The Case Of Covid-19 In Egypt, Abdelhalim Abdalla

Theses and Dissertations

Timely responses to crises and pandemics play a significant role in navigating and minimizing the adverse impacts of such critical periods on the public and governments worldwide. COVID-19 could show and prove how a single virus originating in a single country can rapidly spread throughout the world, transforming an epidemic in China into a global pandemic. The virus caused more than 6.5 million deaths and around 660 million confirmed cases worldwide, according to the WHO, and sparked the worst economic catastrophe globally in more than a century, as estimated by the World Bank. Evidence suggests that the extent of the …

The Impact Of The Tobacco-Free Policy On The Auc New Cairo Campus, Fatimah Badawy

Theses and Dissertations

In 2019, the American University in Cairo (AUC) conducted a research study on campus attitudes towards tobacco use and smoking behaviors within their community, in light of the then newly enforced tobacco-free policy. They found most campus members in support of the policy, with higher rates of disapproval from the smoking community. In 2021, this research aimed to follow-up on changes in attitudes towards the policy as well was smoking behaviors. It hypothesized that over time, levels of support to the policy would increase, smoking habits would be positively impacted and that positive health behaviors would correlate with policy support. …

Cross Cultural Adaptation And Validation Of A Self-Reporting Tool To Assess Health-Related Quality Of Life For Egyptians With Extremity Bone Sarcomas In Childhood Or Adolescence, Nesma Farid

Theses and Dissertations

Validated self-reporting tools are required to evaluate the functional outcome and health-related quality of life (HRQOL) for Egyptians who had extremity bone sarcomas in their childhood or adolescence. Thus, we pursued cross-cultural adaptation and validation of the pediatric Toronto Extremity Salvage Score (pTESS) and Toronto Extremity Salvage Score (TESS) to assess the physical function of children and adult survivors following surgeries of extremity bone sarcomas. Modified versions of pTESS and TESS, which contain additional mental domains, were developed to allow the evaluation of HRQOL using a specific instrument for childhood bone cancer. The internal consistency of the original pTESS and …

Human Gut Microbiota And Parkinson's Disease In An Egyptian Population, Sara Hashish

Theses and Dissertations

Multiple lines of evidence suggest the role of the gut microbiome in the predisposition and progression of Parkinson’s disease. This present cross-sectional study was performed to compare the composition of the gastrointestinal microbiota in patients with Parkinson's disease to their counterparts. Stringent inclusion criteria were followed to reliably identify our target population. Parkinson’s patients (n = 40) along with reference subjects (n = 39) were recruited from November 2021 to August 2022. Detailed demographic and clinical data were obtained at baseline using a set of questionnaires and clinical assessment tools. Fecal specimens were collected from all participants, and gut commensals …

Sperm Dna Integrity In Absolute Teratozoospermia Patients And Its Impact On Assisted Reproductive Technology Outcome, Dina Faris

Theses and Dissertations

Sperm DNA Fragmentation (SDF) is a common cause of male infertility, although it is underdiagnosed due to lack of routine testing. High levels of SDF are reported in men with abnormal sperm morphology. However, the implications of such findings on live birth following Intracytoplasmic Sperm Injection (ICSI) have not been studied in absolute teratozoospermia men (100% abnormal sperm morphology). In this prospective study, the severity of DNA damage was evaluated in absolute teratozoospermia patients and its impact on ICSI outcomes, particularly live birth rate. My study included 36 men with absolute teratozoospermia and 30 men with normal sperm. Real-time assessment …

Effects Of Date Seed (Phoenix Dactylifera) Extract In An Animal Model Of Diabetes Mellitus, Sara Refaat

Theses and Dissertations

Diabetes mellitus is a chronic illness and a global epidemic. The commercial diabetic medicines available are expensive and have several adverse effects. Alternative natural products are still being sought for. Date seeds ( Phoenix dactylifera) are either thrown away as garbage or utilized as animal feed. The use of seed extract as an alternative therapy for diabetes offers a cost-effective and all-natural method for managing the disease. Methods Sprague dawley rats were randomly distributed into groups with a sample size of 4 rats per group. Date seed powder was boiled producing a 10% date seed extract which was administered in …

Differential Transcriptional Alterations In Detoxification Genes In Parkinson’S Disease In Egypt, Nourhan Shebl

Theses and Dissertations

PD is the most common motor neurodegenerative disease worldwide. The underlying cause of PD is still unknow, owingthis to the complexity of the disease. Often, genetics and environmental factors are collaborating in the initiation of the disease. Despite the diversity of its genetical and environmental profiles, the Egyptian population is one of the mostunderrepresented population in terms of PD research. In this study, we investigated PD through various perspectives tohighlight the complexity of the disease in Egypt, taking into consideration the diversity of the Egyptian population. We recruited PD patients and reference controls from 4 governorates: Cairo, Giza, Alexandria, and …

A Review Of Covid-19 Lockdown Across Different Countries During 2020: Characterization Of Risk Factors And Severity Of Covid-19 In Egyptian Patients, Hanya Mohamed

Theses and Dissertations

On March 12, 2020, The World Health Organization (WHO) announced the new coronavirus 2019 as a global pandemic. In January 2022, the number of COVID-19 cases reached 300 million confirmed cases with a total death count of 5.5 million cases. Severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) was identified in a seafood wholesale market in Wuhan, China. At the time of the outbreak, there was no effective treatment to protect from the novel coronavirus; the only way to control the pandemic was through reducing person-to-person contact and taking preventive measures based on the severity of the disease among the population. The …

Development Of Enhanced Food Packaging Systems Based On Blends Of Bio-Based And Biodegradable Polymers Exhibiting Antimicrobial Properties, Aishat Agboluaje

Theses and Dissertations

Food packaging is one of the important aspects of food processing, which contributes greatly to decreasing post-harvest food losses. While ensuring that foods are adequately packaged, it is also important to consider the impact of these food packaging materials on the environment. Accordingly, this research work was aimed at investigating the potential of bio-based and biodegradable blends of polyvinyl alcohol (PVA) and chitosan loaded with antimicrobial agents such as turmeric, clove, and cinnamon for use in food packaging applications. The methodology involved creating PVA/chitosan films with varying compositions via solvent casting method and selecting the best composition exhibiting the highest …

Enhancing Vanadium Redox Battery Performance Using Tungsten-Bismuth-Based Oxide Nanostructures As Electrode Modifiers, Taher Al Najjar

Theses and Dissertations

Renewable energy power plants require high efficiency conversion and storage systems that can store high amounts of energy and can be integrated with the electrical grid. Vanadium redox flow batteries are very promising for this application. However, one major drawback of VRFBs is their low power density which means that right now they cannot replace non-renewable energy sources. Different carbon materials are used as electrodes in VRFBs and each carbon material affects the battery’s performance in a different way. Modification of these electrodes can increase the power density of the battery. Some metal oxides like tungsten oxide can enhance vanadium …

A Preliminary Investigation Of Neuroantibody Levels, Prevalence, And Environmental Factors In Patients With Neurological Dysfunction, Jihan Azar

Theses and Dissertations

Nervous system damage comprises a large proportion of diseases worldwide. It is also the most difficult to diagnose. Biomarkers for nervous system damage are needed in order to diagnose these diseases early enough to allow for intervention. In this study, we recruited patients from two Egyptian hospitals with MCI, ET and NMS and health references. Serum autoantibody levels against neural proteins and heavy metals were analyzed and compared. Immunoglobulin G (IgG) antibodies against neurofilament H (NFH), Glial Fibrillary Acidic Protein (GFAP), Myelin Basic Protein (MBP) and alpha synuclein (a-SYN) and Immunoglobulin M (IgM) antibody against neurofilament light (NFL) were among …

Effect Of Covid-19 On The Wellbeing Of Healthcare Professionals In Public Isolation Hospitals In Egypt, Shaimaa Sabbah

Theses and Dissertations

One of the most vulnerable groups severely hit by the COVID-19 pandemic has been the Healthcare Professionals (HCPs), especially the physicians, pharmacists, and nurses who work in public Isolation hospitals. The Egyptian medical syndicate declared the death of more than 600 physicians from February 2020 till January 2022. In the meantime, the Egyptian government has worked on different policies for relieving the negative effects of the pandemic on this vulnerable group; however, easing restrictions, no total lockdown implementation, and monitoring bureaucracy has negatively affected the wellbeing of those HCPs. The study aims to figure out recommended policies to protect HCPs’ …

Repurposing Metformin And Antifolates For The Treatment Of Hepatocellular Carcinoma, Sherouk Mohamed Tawfik

Theses and Dissertations

Hepatocellular carcinoma (HCC), one of the most prevalent types of cancers worldwide, continues to maintain high levels of resistance to standard therapy. As clinical data revealed poor response rates, the need for developing new methods has increased to improve the overall wellbeing of patients with HCC. Due to its safety, wide availability and previously reported anti-cancer effects, metformin (MET) serves to be a possible therapeutic agent when combined with other well-known anti-cancer agents. The aim of this study was to investigate the potential anti-cancer effects of MET, an anti-diabetic agent, when combined with two antifolate drugs: trimethoprim (TMP) or methotrexate …

Selective Gsk3Β Inhibition Mediates An Nrf2-Independent Anti-Inflammatory Microglial Response, Mohamed H. Yousef

Theses and Dissertations

Glycogen Synthase Kinase 3 (GSK3) is associated with the proinflammatory phenotype of microglia and has been shown to act in concert with Nuclear factor kappa B (NF-κB). . GSK3 is also a suppressor of Nuclear factor erythroid 2-related factor 2 (Nrf2), the principal regulator of redox homeostasis. Agreeing with the oxidative paradigm of aging, Nrf2 is often deregulated in parainflammatory and neurodegenerative diseases. In this study, we aimed to explore a multimodal disease-modifying utility of GSK3 inhibition, beyond neuronal proteopathologies, Furthermore, we aimed to underscore the difference in therapeutic value between the two GSK3 paralogs by isoform-selective chemical inhibition.

The …

A Predictive Model For Geographical Location Using Microbiome Composition And Covid-19 Based Analysis, Ahmed Adel Aboushanab

Theses and Dissertations

The human microbiome is a main contributor for the health and welfare of the human body. It is affected by many factors like diet and hygiene. These factors differ between different populations. Testing the population-microbiome differences using healthy samples from different countries is the first objective of this study. This data was then used in training and testing machine learning models (Random Forest and L2-logistic Regression Classifiers) for the prediction of the geographical location based on the microbiome data. Random Forest Classifier had the highest accuracy. Feature importance analysis showed that the data for Proteobacteria, Actinobacteria, and Bacteroidetes improved the …

Identifying Micrornas Panel Associated With Hepatocellular Carcinoma In Serum Of Chronic Hepatitis C Patients, Areeg Dabbish

Theses and Dissertations

Introduction: early detection of hepatocellular carcinoma (HCC) will reduce morbidity and mortality rates of this poorly diagnosed widely-spread disease. Dysregulation in microRNA (miRNAs) expression is associated with HCC progression. Objective: Is to identify a panel of differentially expressed miRNAs (DE-miRNAs) to enhance HCC early prediction in hepatitis C virus (HCV) infected patients. Methodology: Candidate miRNAs were selected using bioinformatic analysis of microarray and RNA-sequencing datasets, resulting in nine DE- miRNAs (miR-142, miR-150, miR-183, miR-199a, miR-215, miR-217, miR-224, miR-424 and miR-3607). Their expressions were validated in the serum of 44 healthy individuals, 62 non-cirrhotic HCV patients, 67 cirrhotic-HCV and 72 HCV-associated …

Formulation Of Coffee Extract As Polymeric Nanoparticles And Studying Their Potential Biological Activities, Nouran Sharaf

Theses and Dissertations

Coffee extract was prepared and optimized (by solvent extraction) and subsequently entrapped into PLGA nanoparticles using single emulsion-solvent evaporation method (using Design Expert software). Dynamic Light Scattering, Scanning Electron Microscope, Fourier Transform-Infrared Spectroscopy and Folin Ciocalteau assay were used to characterize the NPs and to aid in selecting the optimum formulation conditions. The optimized NPs were in-vitro evaluated for their antimicrobial (by agar-well diffusion method), antioxidant (by DPPH assay) and anticancer (by MTT assay) activities. Finally, the release rate study was conducted for the NP sample showing the highly promising results.

The succeeded NP sample, in terms of the most …

Impact Of Intracellular Glutathione Depletion On Neutral Sphingomyelinase In Human Hepatoma Hepg2 Cells, Marie Tanios

Theses and Dissertations

Introduction: Incidence of hepatocellular carcinoma (HCC) has been increasing dramaticallyandliver cancer is the fifth most common cancer globally. Increasing sphingomyelin (SM) hydrolysis via activation of the cell surface membrane-associated neutral sphingomyelinase (nSMase) has been linked to cell proliferation and apoptosis. Glutathione (GSH) depletion was reported to mediate induction of apoptosis via nSMase activation. On the other hand, other studies reported that GSH protected cancer cells against apoptosis. We hypothesized that GSH synthesis inhibition with buthioninesulfoximine (BSO) increases HepG2 cell proliferation. Objectives: The aim of the current study wasto investigate the effect of GSH depletion using BSO on HepG2 cell proliferation …

Metabolites Profiling Of Coffee Seeds In Context To Their Origin, Processing And Gut Microbiota Interaction, Amr Abdelwareth

Theses and Dissertations

Coffee is among the most consumed beverages worldwide, with the present study to focus on the aroma and non-volatiles composition associated with coffee seeds processing, brewing methods and gut microbiota interaction. The study uncovered a large number of primary and secondary metabolites in diverse coffee products consumed in the Middle East in the context of its origin, roasting, and blends and microbiota mediated biotransformation products. First, aroma of authentic coffee specimens of Coffea arabica and Coffea robusta alongside with commercial products consumed in the Middle East were analyzed using HS-SPME coupled to GC-MS and modelled using multivariate data analyses (MVA). …

Analysis Of Single Cell Rna-Seq Data Revealed Interferon Gamma Signaling Alteration In Severe Covid Patients, Ahmed Elbaz

Theses and Dissertations

Background: SARS-COV2 virus detected in December 2019, and was considered a pandemic in March 2020 by the WHO. Symptoms range from asymptomatic to life threatening ones. Studying cell-cell interactions in patients' blood samples may lead to novel diagnosis and treatment approaches.

Aim: This study aims to analyze single-cell RNA sequencing data to identify differences in cell-cell communications between healthy and COVID patients and differentially expressed T-cells genes that contributed to immune system antiviral activity.

Materials and methods: Single-Cell RNA sequencing data from seven COVID patients and five healthy individuals were collected from (GEO accession GSE155673). Cell types were identified and …

Herbal Extracts As Neuroprotective Agents In An In-Vitro Model Of Aluminum Neurotoxicity, Nada Ezzelarab

Theses and Dissertations

Background: Aluminum toxicity due to environmental or industrial exposure, medical applications, or from cooking utensils is a serious medical problem. The current study aims to investigate three herbal extracts: pomegranate peel extract, Achillea fragrantissima extract, and papaya fruit extract to combat this neurotoxicity.

Methods: Chemical characterization of the three extracts were evaluated using HPLC MS while their neuroprotective activity was assayed using MTT assay on SHSY5Y cells and nitric oxide levels.

Results: Using HPLC-MS chromatography, we have identified twenty-one compounds in the hydro-alcoholic Achillea fragrantissima, seventeen were determined in the pomegranate peel, eleven were assessed in the Carica papaya …

Autophagic Reprogramming Of Bone Marrow-Derived Macrophages, Mayada Mahmoud Zaki Mohamed Mazher

Theses and Dissertations

ABSTRACT Background: Macroautophagy is a highly conserved catabolic process among eukaryotes. Autophagosome is a piece of double-membrane machinery that fuses with lysosomes during macroautophagy to form autolysosomes. Autolysosome degrades organelles and organizes the pathogen engulfment during phagocytosis in innate immunity. Macrophages are highly dynamic immune cells that orchestrate the host-pathogen interaction. Interestingly, autophagy is implicated in disease pathophysiologies such as Crohn’s disease, cancer, and neurodegenerative diseases. Therefore, we studied the interplay between autophagy and macrophage polarization (activation) through two approaches: 1- Systems biology approach to construct the genetic regulatory network and pathway analysis. And to predict the target proteins that …