Publications by authors named "Ahmed E"

Premature ventricular contractions (PVCs) are a common finding in patients with surgically repaired congenital heart defects including transposition of the great arteries (D-TGA). While often asymptomatic, PVCs can sometimes lead to palpitations, dyspnea, and hemodynamic compromise, requiring therapeutic intervention. The arterial switch operation is the preferred treatment for D-TGA, but these patients have a 2% incidence of ventricular arrhythmias and 1% incidence of sudden cardiac death post-operatively.

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Glomerular filtration rate (GFR) is the main functional index of kidney health and disease. Currently, no methods are available to directly measure tubular mass and function. Here, we report a serendipitous finding that the in vitro cell viability dye resazurin can be used in mice as an exogenous sensor of tubular function.

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Background:  Femoral neck fractures in elderly individuals cause significant morbidity, and their management is particularly challenging in rural areas where healthcare access is limited. The recommended treatment for displaced femoral neck fractures in elderly patients with poor mobility, cognitive dysfunction and multiple comorbidities is a hemiarthroplasty, which can be performed with various implants, including monopolar implants like Austin Moore prosthesis (AMP) and bipolar prosthesis (BP). In developing countries like India, rural areas often have constraints with healthcare resources.

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Bone fractures often require arthroplasty, which carries the risk of surgical site infections (SSIs) and prosthetic joint infections (PJIs). Antibiotic-loaded bone cement (ALBC) is commonly used to reduce these risks. Dual antibiotic-loaded cement (DALC) has been proposed as a more effective option compared to single antibiotic-loaded cement (SALC).

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Consumers' demand for ready-to-eat extruded snack is increasing due to their convenience and time saving. Extrusion cooking is the most commonly used technology for manufacturing ready-to-eat snack products. However, improper management of extrusion parameters such as the barrel temperature, feed moisture content, pressure, and other parameters of the extruder can influence the quality of extruded snack foods.

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Background: Mutations in the gene can disrupt its normal signaling pathways, leading to hematological disorders such as polycythemia vera and other myeloproliferative diseases.

Methodology: In this study, a range of bioinformatics tools, including SIFT, PolyPhen-2, SNAP2, SNPs & Go, PhD-SNP, I-Mutant2.0, MuPro, MutPred, ConSurf, HOPE, and Interpro were used to assess the deleterious effects of missense nonsynonymous single nucleotide polymorphisms (nsSNPs) on protein structure and function.

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Article Synopsis
  • - Genetic generalized epilepsy (GGE) includes types like childhood absence epilepsy and juvenile myoclonic epilepsy, showing a higher risk of occurrence in first-degree relatives of affected individuals, suggesting a strong genetic component.
  • - Research, including whole exome sequencing from families in Sudan, has identified specific genetic variants linked to GGE, indicating it is genetically diverse and likely influenced by multiple genes rather than a single cause.
  • - The study emphasizes the importance of examining familial cases, as well as using populations with unique genetic backgrounds, to better understand the complex genetics of GGE, reinforcing the idea that it may have oligogenic inheritance patterns.
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Background: Inadequate acute postoperative pain management is linked to the effect on the stress response and development of chronic pain. A unique regional anaesthetic method that is becoming more important for postoperative pain management is erector spinea plane block (ESP). Since its initial description, physicians have questioned weather this novel easy method can take the place of paravertebral block (PVB).

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Introduction: Atorvastatin (ATV), a medication used to reduce cholesterol levels, possesses properties that can counteract the damaging effects of free radicals and reduce inflammation. However, the administration of ATV orally is associated with low systemic bioavailability due to its limited capacity to dissolve in water and significant first-pass effect. This study aimed to assess the appropriateness of employing nano-vesicles for transdermal administration of ATV in order to enhance its anti-inflammatory effects.

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A novel series of cyanopyridines 7a-j were synthesized via a one-pot multicomponent reaction of arylidene 4 with ammonium acetate 5 and respective methylaryl/heterylketones 6a-j in ethanol using vanillin as a natural starting material. Moreover, the regioselective alkylation reaction was studied by the treatment of cyanopyridines 7a-f and 7j with CHI in the presence of KCO in DMF to afford O-methylcyanopyridines 8a-g (major) and N-methylcyanopyridines 9a-g (minor), whereas bipyridine 7h gave bipyridinium iodide salt 10. All of the designed cyanopyridines were evaluated as anti-breast cancer (MCF-7) cell lines via PIM Kinase inhibitory activity, and the results displayed that some of them showed high activities, especially compounds 7h and 8f, which showed excellent activities against MCF-7 with IC values of 1.

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  • * Tests conducted included complete blood count, G6PD assay, and the NESTROF test, revealing that 21.7% of donors had hemoglobinopathies, particularly β-thalassemia trait and α-thalassemia trait.
  • * The research highlighted the effectiveness of specific screening tools, showing that the NESTROF test and certain RBC indices had a sensitivity rate of 100% for identifying β-thalassemia trait, underlining the need for improved blood screening programs in Yemen
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Plane, nonlinear Rayleigh wave propagation is investigated in a three-layer sandwich structure of a thermoelastic medium, within the frame of dual-phase-lag theory. The thermal conductivity is taken as a linear function of temperature. This induces nonlinearity in the evolution equations for the heat flux components.

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Introduction: This study aimed to prepare cholesterol and stearic acid-based solid lipid nanoparticles of gabapentin (GAB-SLNs) for protection against streptozotocin (STZ)-induced retinal injury in rats.

Methods: We prepared four preparations of GAB-SLNs using a hot high-shear homogenization ultrasonication process, and the best formulation was selected and tested for biological activity. The retinal injury was brought in male adult albino rats while gabapentin doses continued for 6 weeks.

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Background Distal radius fractures (DRFs) are commonly treated with percutaneous K-wire or plate fixation. The relative efficacy and stability of these methods, particularly in osteoporotic patients and in cases involving both distal radius and ulna fractures, remain subjects of clinical debate. Objective This study aims to compare the outcomes of percutaneous K-wire fixation versus plate fixation in patients with distal end radius fractures, focusing on postoperative stability in osteoporotic conditions and both-bone distal end fractures.

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Context: The WHO Model List of Essential Medicines includes 24 medications under the section Medicines for Pain and Palliative Care (EML). The Lancet Commission on Pain and Palliative Care developed the Lancet Essential Package (LEP), including 35 medications designed to alleviate serious health-related suffering worldwide.

Objectives: This study aims to provide recommendations on the appropriate use of essential of medicines in palliative care.

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Globally, there is a growing concern about avoiding using artificial compounds in food ingredients, food preservation, and packaging. Among the parts of the neem tree, leaf flour is one of the most commonly used parts in some countries for food and medicinal purposes and is known for containing several nutrients and phytochemicals. In this review, the proximate composition, phytochemical constituents, potential uses, and safety issues of neem leaf flour are discussed.

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Patients with schizophrenia have significant challenges in adhering to and complying with oral medicines, resulting in adverse consequences such as symptom worsening and psychotic relapse. This study aimed to develop clove oil-based bilosomes using definitive screening design (DSD) to maximize the anti-schizophrenic action of clozapine and promote its nose-to-brain delivery. The target was to optimize the physicochemical properties of bilosomes and incorporate them into mucoadhesive intranasal in situ gels, searching for augmented ex vivo and in vivo clozapine delivery.

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Article Synopsis
  • Chronic constipation affects 24.3% of T2DM patients attending the endocrinology clinic at Hiwot Fana Comprehensive Specialized University Hospital, impacting their overall health and quality of life.
  • Factors associated with chronic constipation include lower education levels, insufficient sleep (<7 hours), a history of depression, family history of constipation, low daily water intake (<1300 ml), and specific blood sugar and lipid levels.
  • The study highlights the significance of addressing lifestyle and health factors to improve management and reduce constipation prevalence among T2DM patients.*
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  • - The paper introduces a routing protocol for Cognitive Radio Unmanned Aerial Vehicles (CR-UAVs) designed to optimize communication in Flying Ad-hoc Networks (FANETs) by considering key factors like distance, speed, link quality, and energy consumption.
  • - A unique feature, the Central Node Resolution Factor (CNRF), improves routing decisions, while predictive algorithms help manage challenges from high mobility, ensuring effective distance estimation with the Received Signal Strength Indicator (RSSI).
  • - Simulation results indicate that this protocol outperforms existing methods in crucial areas like throughput and packet transmission delay, making it highly suitable for both defense and civilian UAV applications.
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Introduction: Antimicrobial resistance is a critical global issue, and medicinal plants, as a key source of therapeutic agents, offer potential solutions by offering new antibacterial agents. tree, known as Al Kakamout in Sudan, is a significant source of Gum Arabic and has been traditionally used to treat bacterial diseases. This study aimed to investigate a hydro-ethanol extract of Kakamout stem bark through GC-MS analysis, evaluate its antibacterial activity against two standard bacterial strains, and conduct molecular docking and ADME studies.

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Hydrogen deuterium-exchange mass spectrometry (HDX-MS) is commonly used in the study of protein dynamics and protein interactions. By measuring the isotopic exchange of backbone amide hydrogens in solution, HDX-MS offers valuable structural insights into challenging biological systems. Traditional HDX-MS approaches utilize bottom-up (BU) proteomics, in which deuterated proteins are digested before MS analysis.

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Article Synopsis
  • The study classifies membranoproliferative glomerulonephritis (MPGN) into two types: immune complex-mediated and complement-mediated, based on immunofluorescence results, using data from a 20-year period at a major medical institution in Pakistan.
  • Out of 213 patients, the majority (76.5%) were found to have immune complex-mediated MPGN, with both groups showing similar demographics and clinical presentations, but differing treatment outcomes.
  • Immune complex-mediated MPGN had better remission rates and renal survival compared to complement-mediated MPGN, which had higher progression to end-stage kidney disease (ESKD) and greater overall mortality.
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Rheumatoid arthritis (RA) is an autoimmune illness affecting joint articulations, leading to a disability state. Currently, there is no satisfying optimal therapy except for immunosuppressants, which have variable and bad effects after long-term use. Hence, researchers have attempted to develop other alternative, safer, and more effective natural treatment agents that are effective and without undesirable effects.

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Background: To accelerate access to new drugs, France operated an early access program known as Temporary Authorizations for Use (ATUs) until 2021. We analyzed clinical reports submitted under ATUs for immune checkpoint inhibitors (ICIs) and assessed their clinical relevance regarding the approval of ICIs in oncology.

Methods: We included all ICIs granted an ATU by the French drug safety agency, Agence nationale de sécurité du médicament et des produits de santé (ANSM; French National Agency for the Safety of Medicines and Health Products), for patients with cancer between 1 January 2010 and 31 December 2020.

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Article Synopsis
  • Dynamic molecular crystals are a promising new type of material in energy conversion but have limitations in becoming full-fledged actuators.
  • This study investigates anthracene-based crystals to measure their efficiency in converting light energy into mechanical movement, assessing their potential for applications in soft robotics.
  • The research aims to enhance the development of these materials for use in controllable, all-organic devices in fields like microrobotics, engineering, and biomedicine.
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