Browsing Biomedical Sciences by Title
Now showing items 29-48 of 638
-
Analysis of the Qatari R336C Cystathionine β-Synthase Protein in Mice.
( Wiley , 2019 , Article)Classical homocystinuria is a recessive inborn error of metabolism caused by mutations in the cystathionine beta-synthase (CBS) gene. The highest incidence of CBS deficiency in the world is found in the country of Qatar ... -
Analytic comparison between three high-throughput commercial SARS-CoV-2 antibody assays reveals minor discrepancies in a high-incidence population
( Nature Research , 2021 , Article)Performance of three automated commercial serological IgG-based assays was investigated for assessing SARS-CoV-2 "ever" (past or current) infection in a population-based sample in a high exposure setting. PCR and serological ... -
Anaphylaxis triggers in a large tertiary care hospital in Qatar: a retrospective study
( BMC , 2018 , Article)Anaphylaxis is a serious allergic disease that may lead to death if not immediately recognized and treated. Triggers of anaphylaxis including food, drugs, and insect stings can vary widely. The incidence of anaphylaxis ... -
Anti-cancer properties and mechanisms of action of thymoquinone, the major active ingredient of Nigella sativa
( Taylor & Francis , 2017 , Article)Over the past two decades, studies have documented the wide-range anti-cancer effects of Nigella sativa, known as black seed or black cumin. Thymoquinone (TQ), its major active ingredient, has also been extensively studied ... -
Antibacterial and Antibiofilm Activity of Mercaptophenol Functionalized-Gold Nanorods Against a Clinical Isolate of Methicillin-Resistant Staphylococcus aureus
( Springer , 2022 , Article)Gold nanorods (AuNRs) were synthesized by the seed-mediated wet chemical method using a binary surfactant system. AuNRs were stabilized with polyethylene glycol, then functionalized with 4-mercaptophenol (4-MPH) ligand by ... -
Antibiotic Prescription Patterns for Upper Respiratory Tract Infections in Outpatient Qatari Population in the Private Sector
( Elsevier , 2016 , Article)Background: Antibiotic are often inappropriately prescribed for upper respiratory infections (URI) in the Western countries. Data on the proportion of inappropriate prescriptions are lacking from the Middle East and other ... -
Antibody Response to SARS-CoV-2: A Cohort Study in Qatar's Primary Care Settings.
( SAGE Publications , 2021 , Article)Globally, countries are rolling out Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) quarantine policies and vaccination programs. Research studies are needed in helping understand the likelihood of acquired ... -
Antibody-Dependent Enhancement (ADE) and the role of complement system in disease pathogenesis
( Elsevier Ltd , 2022 , Article Review)Antibody-dependent enhancement (ADE) has been associated with severe disease outcomes in several viral infections, including respiratory infections. In vitro and in vivo studies showed that antibody-response to SARS-CoV ... -
Antihypertensive indigenous lebanese plants: Ethnopharmacology and a clinical trial
( MDPI AG , 2019 , Article)Hypertension is highly prevalent among the Lebanese adult population and is indeed the major cause of mortality in Lebanon. Traditional use of antihypertensive medicinal plants has long been practiced. The aim of this study ... -
Antimicrobial Resistance of Commensal Escherichia coli Isolated from Food Animals in Qatar
( Mary Ann Liebert , 2020 , Article)This study aims at evaluating the phenotypic and genotypic antimicrobial resistance (AMR) patterns of 18 clinically relevant antibiotics in food animals in Qatar. Fecal samples from camels, cattle, and pigeons (300) were ... -
Antioxidant Activity Mediates Pirfenidone Antifibrotic Effects in Human Pulmonary Vascular Smooth Muscle Cells Exposed to Sera of Idiopathic Pulmonary Fibrosis Patients.
( Hindawi Publishing Corporation , 2018 , Article)Idiopathic pulmonary fibrosis (IPF) is a chronic lung disease characterized by an exacerbated fibrotic response. Although molecular and cellular determinants involved in the onset and progression of this devastating disease ... -
Antitumor Activities of the Novel Isosteviol Derivative 10C Against Liver Cancer
( International Institute of Anticancer Research , 2017 , Article)Background/Aim. Hepatocellular carcinoma (HCC) is the most common type of liver cancer and the fifth most common primary malignancy with worldwide increasing incidence. The current study aims to investigate the anticancer ... -
The Arab genome: Health and wealth
( Elsevier B.V. , 2016 , Article)The 22 Arab nations have a unique genetic structure, which reflects both conserved and diverse gene pools due to the prevalent endogamous and consanguineous marriage culture and the long history of admixture among different ... -
Arrhythmogenic calmodulin E105A mutation alters cardiac RyR2 regulation leading to cardiac dysfunction in zebrafish
( Wiley , 2019 , Article)Calmodulin (CaM) is a universal calcium (Ca )-binding messenger that regulates many vital cellular events. In cardiac muscle, CaM associates with ryanodine receptor 2 (RyR2) and regulates excitation-contraction coupling. ... -
Assessing the burden of intestinal parasites affecting newly arrived immigrants in Qatar
( BioMed Central , 2016 , Article)In the last decades, the enormous influx of immigrants to industrialized countries has led to outbreaks of parasitic diseases, with enteric infections being amongst the most frequently encountered. In its strategy to control ... -
Assessment of Broadly Reactive Responses in Patients With MERS-CoV Infection and SARS-CoV-2 Vaccination
( American Medical Association , 2023 , Article)Importance: In the ongoing COVID-19 pandemic, there remain unanswered questions regarding the nature and importance of the humoral immune response against other coronaviruses. Although coinfection of the Middle East ... -
Assessment of morphological changes due to oxidative stress: leukodepleted packed red blood cells stored in SAGM
( Canadian Society of Transfusion Medicine , 2016 , Conference Paper)Background: In blood bank, the storage procedures of packed red blood cell (pRBC) require some conditions to ensure the maximum storage time for a safe blood supply. pRBC can be stored up to 42 days in 2-6⁰C, as long as ... -
Assessment of the Neutralizing Antibody Response of BNT162b2 and mRNA-1273 SARS-CoV-2 Vaccines in Naïve and Previously Infected Individuals: A Comparative Study
( MDPI , 2022 , Report)The currently authorized mRNA COVID-19 vaccines, Pfizer-BNT162b2 and Moderna-mRNA-1273, offer great promise for reducing the spread of the COVID-19 by generating protective immunity against SARS-CoV-2. Recently, it was ... -
Association between Genetic Variants of GC Gene at 4q13.3 and Vitamin D Concentrations in Adult Females
( Longdom , 2019 , Article)Background: Vitamin D binding protein, encoded by the GC gene (on 4q13.3), plays an important role in transporting vitamin D. Several Genome-Wide Association Studies (GWASs) have established a significant association ... -
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 ...