Biomedical Sciences: Recent submissions
Now showing items 361-380 of 738
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Effect of mRNA Vaccine Boosters against SARS-CoV-2 Omicron Infection in Qatar.
( Massachusetts Medical Society , 2022 , Article)Waning of vaccine protection against coronavirus disease 2019 (Covid-19) and the emergence of the omicron (or B.1.1.529) variant of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) have led to expedited ... -
Prevalence of Gastrointestinal Protoz in Feral Cat Population in Qatar
( Hamad bin Khalifa University Press (HBKU Press) , 2016 , Conference Paper)Introduction: Doha city has a high feral cat population that is estimated to outnumber its human inhabitants by 2-3:1 with a total population of 2-3 million cats according to Qatar Cat Control Unit (QCCU). Doha had a ... -
Association between Insulin and Nitric Oxide in Human Retinal Microvascular Endothelial Cells in vitro
( Hamad bin Khalifa University Press (HBKU Press) , 2016 , Conference Paper)Obesity and type 2 diabetes is characterized by insulin resistance which has been reported as the major risk factors associated with the development of the endothelial dysfunction and vascular complications such as ... -
Seroprevalence of Toxoplasma Gondii Among Stray Cats in Qatar
( Hamad bin Khalifa University Press (HBKU Press) , 2016 , Conference Paper)Toxoplasmosis is the most widespread infection worldwide due to the parasite Toxoplasma gondii. The protozoan is a ubiquitous pathogen of warm-blooded animals, including man. In man it is responsible for fetal damage and ... -
Enteric Protoz Associated with Acute Diarrhea in Hospitalized Children in Qatar
( Hamad bin Khalifa University Press (HBKU Press) , 2016 , Conference Paper)Diarrhea is the passage of three or more watery stool in a period of 24 hours (WHO, 2013). Types of diarrhea include acute watery diarrhea, acute bloody diarrhea known as dysentery and persistent diarrhea (WHO, 2013). It ... -
Is it the time for Hepatitis E virus (HEV) Testing for Blood Donors in Qatar?
( Hamad bin Khalifa University Press (HBKU Press) , 2016 , Conference Paper)Background: HEV is the etiologic agent of acute hepatitis E. Although HEV usually causes a self-limiting infection, the disease may develop into a chronic or fulminant form of Hepatitis. Sporadic HEV infections spread in ... -
Obesity is associated with the upregulation of TLR4 protein but not associated with polymorphisms of TLR4D299G TLR4T399I
( Hamad bin Khalifa University Press (HBKU Press) , 2018 , Conference Paper)Title: Obesity is associated with the upregulation of TLR4 protein but not associated with polymorphisms of TLR4D299G TLR4T399I.Background: Toll-like-receptor 4 (TLR4) is a pathogen-specific receptor, expressed in white ... -
Performance evaluation of novel fluorescent-based lateral flow immunoassay (LFIA) for rapid detection and quantification of total anti-SARS-CoV-2 S-RBD binding antibodies in infected individuals
( Elsevier , 2022 , Article)The vast majority of the commercially available LFIA is used to detect SARS-CoV-2 antibodies qualitatively. Recently, a novel fluorescence-based LIFA test was developed for quantitative measurement of the total binding ... -
Novel Isosteviol Derivatives Induced Apoptosis In Human Lung Cancer
( Hamad bin Khalifa University Press (HBKU Press) , 2014 , Conference Paper)Background. Cancer metastasis is the major cause of cancer death. We previously reported novel isosteviols derivatives which induced cytotoxicity in lung cancer cells. The understanding of mechanisms which regulate lung ... -
Prevalence of Virulence/Stress Genes in Campylobacter Jejuni from Chicken Meat Sold in Qatari Retail Outlets
( Hamad bin Khalifa University Press (HBKU Press) , 2016 , Conference Paper)Chicken meat from the shelves of supermarkets in Qatar was tested for the presence of Camplobacter spp., and the presence of five virulence genes (htrB, cdtB, clpB, cadF and ciaB) was assessed in isolates. Forty eight ... -
Gene Expression Profiling and Protein Analysis Reveal Suppression of the C-Myc Oncogene and Inhibition JAK/STAT and PI3K/AKT/mTOR Signaling by Thymoquinone in Acute Myeloid Leukemia Cells
( MDPI , 2022 , Article)Overexpression of c-Myc plays an essential role in leukemogenesis and drug resistance, making c-Myc an attractive target for cancer therapy. However, targeting c-Myc directly is impossible, and c-Myc upstream regulator ... -
The Role of Soluble Adhesion Molecules in Type 2 Diabetes Mellitus
( Hamad bin Khalifa University Press (HBKU Press) , 2018 , Conference Paper)Background: Diabetes mellitus (DM) is a chronic metabolic disorder that is steadily increasing worldwide and is a leading cause of morbidity and mortality. As reported by the World Health Organization (WHO), 346 million ... -
The Special Features of Prenatal and Preimplantation Genetic Counseling in Arab Countries.
( MDPI , 2022 , Article Review)Genetic counseling services have only recently been introduced in most Arab countries, and their utilization is increasing. Prenatal genetic counseling is essential, particularly in the Arab context, which is characterized ... -
Description of PTPRG genetic variants identified in a cohort of Chronic Myeloid Leukemia patients and their ability to influence response to Tyrosine kinase Inhibitors
( Elsevier , 2022 , Article)Tyrosine kinase inhibitors (TKIs) have remarkably transformed Ph+ chronic myeloid leukemia (CML) management; however, TKI resistance remains a major clinical challenge. Mutations in BCR-ABL1 are well studied but fail to ... -
Physiological Changes and Interactions Between Microbiome and the Host During Pregnancy
( Frontiers Media , 2022 , Article Review)In recent years, it has become clear that microbiome play a variety of essential roles in human metabolism, immunity, and overall health and that the composition of these microbiome is influenced by our environment, diet, ... -
Preparation, characterization, in vitro drug release and anti-inflammatory of thymoquinone-loaded chitosan nanocomposite
( Elsevier , 2022 , Article)In this study, we formulated Thymoquinone-loaded nanocomposites (TQ-NCs) using high-pressure homogenizer without sodium tripolyphosphate. The TQ-NCs were characterized and their anti-inflammatory determined by the response ... -
Characterizing the effective reproduction number during the COVID-19 pandemic: Insights from Qatar’s experience
( International Society of Global Health , 2022 , Article)Background: The effective reproduction number, Rt, is a tool to track and understand epidemic dynamics. This investigation of Rt estimations was conducted to guide the national COVID-19 response in Qatar, from the onset ... -
Metabolic Signatures of Type 2 Diabetes Mellitus and Hypertension in COVID-19 Patients With Different Disease Severity.
( Frontiers Media , 2022 , Article)Increased COVID-19 disease severity is higher among patients with type 2 diabetes mellitus and hypertension. However, the metabolic pathways underlying this association are not fully characterized. This study aims to ... -
Relative infectiousness of SARS-CoV-2 vaccine breakthrough infections, reinfections, and primary infections.
( Springer , 2022 , Article)SARS-CoV-2 breakthrough infections in vaccinated individuals and in those who had a prior infection have been observed globally, but the transmission potential of these infections is unknown. The RT-qPCR cycle threshold ... -
Understanding Gene Expression and Transcriptome Profiling of COVID-19: An Initiative Towards the Mapping of Protective Immunity Genes Against SARS-CoV-2 Infection.
( Frontiers Media , 2021 , Article)The COVID-19 pandemic has created an urgent situation throughout the globe. Therefore, it is necessary to identify the differentially expressed genes (DEGs) in COVID-19 patients to understand disease pathogenesis and the ...
