3,662 results match your criteria: "AlFaisal University[Affiliation]"

Cardiomyocytes (CMs) lost during ischemic cardiac injury cannot be replaced due to their limited proliferative capacity. Calcium is an important signal transducer that regulates key cellular processes, but its role in regulating CM proliferation is incompletely understood. Here we show a robust pathway for new calcium signaling-based cardiac regenerative strategies.

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Objective: Globally, over 50% of the population is affected by , yet research on its prevalence and impact in patients with obesity undergoing laparoscopic sleeve gastrectomy (LSG) is inconclusive. This study aimed to assess the prevalence of infection in individuals with obesity undergoing LSG, evaluate the percentage of postoperative staple-line leaks, and explore the potential link between infection and staple-line leaks.

Methods: This retrospective analysis assessed adult patients with class III obesity who underwent LSG between 2015 and 2020 at a tertiary care hospital in Riyadh, Saudi Arabia.

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S6K2 in Focus: Signaling Pathways, Post-Translational Modifications, and Computational Analysis.

Int J Mol Sci

December 2024

Division of Cancer, Department of Surgery & Cancer, Faculty of Medicine, Imperial College London, London W12 0NN, UK.

S6 Kinase 2 (S6K2) is a key regulator of cellular signaling and is crucial for cell growth, proliferation, and survival. This review is divided into two parts: the first focuses on the complex network of upstream effectors, downstream modulators, and post-translational modifications (PTMs) that regulate S6K2 activity. We emphasize the dynamic nature of S6K2 regulation, highlighting its critical role in cellular homeostasis and its potential as a therapeutic target in diseases like cancer.

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Immunotherapy, particularly that based on blocking checkpoint proteins in many tumors, including melanoma, Merkel cell carcinoma, non-small cell lung cancer (NSCLC), triple-negative breast (TNB cancer), renal cancer, and gastrointestinal and endometrial neoplasms, is a therapeutic alternative to chemotherapy. Immune checkpoint inhibitor (ICI)-based therapies have the potential to target different pathways leading to the destruction of cancer cells. Although ICIs are an effective treatment strategy for patients with highly immune-infiltrated cancers, the development of different adverse effects including cutaneous adverse effects during and after the treatment with ICIs is common.

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Herein, we report the methodological impact on the curing kinetics of bone cement based on polymer nanocomposites prepared using different methods. Poly (styrene--methylmethacrylate)-2D nanofiller nanocomposites (P(S-MMA)-2D Nanofiller) were prepared using bulk and suspension polymerization methods to study the effect of the different methods. The prepared nanocomposites were well-characterized for chemical, thermal, mechanical, and structural characteristics using Fourier Transform Infrared spectroscopy (FT-IR), differential scanning calorimetry (DSC), nano-indentation, and scanning electron microscopy (SEM) techniques, respectively.

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This study examines the influence of nanofillers on the ultraviolet (UV) penetration depth of photopolymer resins used in stereolithography (SLA) 3D printing, and their impact on printability. Three nanofillers, multiwalled carbon nanotubes (MWCNT), graphene nanoplatelets (xGNP), and boron nitride nanoparticles (BNNP), were incorporated into a commercially available photopolymer resin to prepare nanocomposite formulations. The UV penetration depth (Dp) was assessed using the Windowpane method, revealing a significant reduction with the addition of nanofillers.

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Abdominopelvic tumors of infancy: a pictorial essay.

Pediatr Radiol

January 2025

Altakassusi Alliance Medical, Riyadh, Saudi Arabia.

Abdominal and pelvic masses in infants present significant challenges for healthcare professionals and can be distressing for parents due to the wide spectrum of both benign and malignant conditions in this age group. This article concentrates on illustrating different types of abdominal and pelvic tumors, both benign and malignant, that occur in infants. It highlights the specific imaging characteristics of these tumors and covers non-neoplastic conditions that may appear similar on imaging.

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Envenomation accidents are usually diagnosed at the hospital through signs and symptoms assessment such as short breath, dizziness and vomiting, numbness, swilling, bruising, or bleeding around the affected site. However, this traditional method provides inaccurate diagnosis given the interface between snakebites and scorpion stings symptoms. Therefore, early determination of bites/stings source would help healthcare professionals select the suitable treatment for patients, thus improving envenomation management.

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Risk of infections in bispecific antibody therapy for multiple myeloma: a comprehensive review of literature.

Hematology

December 2025

Clinical Pharmacy Department, King Fahad Medical City, Riyadh, RH, Saudi Arabia.

Multiple Myeloma (MM) is a malignancy characterized by abnormal production of monoclonal immunoglobulins in plasma cells. Bispecific antibodies have emerged as a significant advancement in MM treatment, offering high effectiveness and specificity by targeting different antigens such as BCMA, CD38, and FcRH5. However, the risk of infection poses a major challenge in MM patients, which is thought to be influenced by various factors.

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Targeting Iron Responsive Elements (IREs) of APP mRNA into Novel Therapeutics to Control the Translation of Amyloid-β Precursor Protein in Alzheimer's Disease.

Pharmaceuticals (Basel)

December 2024

Department of Life Science, College of Science and General Studies, Alfaisal University, Riyadh 11533, Saudi Arabia.

The hallmark of Alzheimer's disease (AD) is the buildup of amyloid-β (Aβ), which is produced when the amyloid precursor protein (APP) misfolds and deposits as neurotoxic plaques in the brain. A functional iron responsive element (IRE) RNA stem loop is encoded by the APP 5'-UTR and may be a target for regulating the production of Alzheimer's amyloid precursor protein. Since modifying Aβ protein expression can give anti-amyloid efficacy and protective brain iron balance, targeted regulation of amyloid protein synthesis through modulation of 5'-UTR sequence function is a novel method for the prospective therapy of Alzheimer's disease.

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Immunotherapy in the Battle Against Bone Metastases: Mechanisms and Emerging Treatments.

Pharmaceuticals (Basel)

November 2024

Department of Anatomy and Genetics, College of Medicine, Alfaisal University, Riyadh 11533, Saudi Arabia.

Bone metastases are a prevalent complication in advanced cancers, particularly in breast, prostate, and lung cancers, and are associated with severe skeletal-related events (SREs), including fractures, spinal cord compression, and debilitating pain. Conventional bone-targeted treatments like bisphosphonates and RANKL inhibitors (denosumab) reduce osteoclast-mediated bone resorption but do not directly impact tumor progression within the bone. This review focuses on examining the growing potential of immunotherapy in targeting the unique challenges posed by bone metastases.

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Personality and Attachment Patterns in Patients with Psychogenic Non-Epileptic Seizures in Saudi Arabia.

Medicina (Kaunas)

November 2024

Department of Biochemistry and Molecular Medicine, College of Medicine, Alfaisal University, Riyadh 11533, Saudi Arabia.

The purpose of this study was to investigate personality and relationship patterns in patients with psychogenic non-epileptic seizures (PNES) and compare them to patients with epilepsy and healthy controls. A total of 68 participants were recruited (mean age = 29.8 ± 9.

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Introduction: In recent years, artificial intelligence (AI) has emerged as a transformative tool for enhancing stroke diagnosis, aiding treatment decision making, and improving overall patient care. Leading AI-driven platforms such as RapidAI, Brainomix, and Viz.ai have been developed to assist healthcare professionals in the swift and accurate assessment of stroke patients.

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: Obesity is a growing public health concern worldwide, and Saudi Arabia faces rising rates of obesity-related conditions, including diabetes and cardiovascular diseases. Bariatric surgery is a recognized treatment for severe obesity, offering significant health benefits. This study evaluates the Saudi population's awareness and attitudes towards bariatric surgery, examining knowledge levels, perceptions, and potential barriers.

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Processed and ultra-processed foods are associated with depression and anxiety symptoms in a cross-sectional sample of urban Lebanese adults.

Nutr Res

January 2025

Faculty of Medicine, Department of Internal Medicine, American University of Beirut Medical Center, Beirut, Lebanon; Faculty of Medicine, Clinical Research Institute, American University of Beirut, Beirut, Lebanon.

While low dietary quality has been linked to poor mental health, evidence on more direct relations of specific dietary quality indicators, namely degrees of food processing, with mental health disorders remains limited. This study aims to investigate the association between food groups' intakes, defined based on their degree of food processing, with depression and anxiety symptoms in a sample of Lebanese adults. We hypothesized that higher intakes of ultra-processed foods (UPF) will be related to higher risk of depression and anxiety while an opposite association will be observed for unprocessed or minimally processed foods (MPF).

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Introduction: Gestational Diabetes Mellitus (GDM) is a metabolic disorder marked by Q10 hyperglycemia that can negatively affect both mothers and newborns. The increasing prevalence of GDM and the limitations associated with the standard diagnostic test highlight the urgent need for early screening strategies that promote timely interventions.

Methods: This study aims to investigate the metabolic profile associated with GDM through an untargeted metabolomic analysis using mass spectrometry (MS)- based omics.

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Virtual Screening Identifies Inhibitors of SARS-CoV-2 Main Protease through Pharmacophore and Similarity Approaches.

Curr Pharm Des

January 2025

Department of Pharmaceutical Sciences, Faculty of Pharmacy, The University of Jordan, P.O Box 13140, Amman 11942, Jordan.

Introduction: The emergence of SARS-CoV-2 and the COVID-19 pandemic highlighted the urgent need for novel antiviral therapies. The main protease (Mpro) of SARS-CoV-2 is a key enzyme in viral replication and a promising therapeutic target.

Methods: This study employed virtual screening approaches to identify potential Mpro inhibitors, leveraging both structure- and ligand-based methods.

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Background: Patellar instability is frequently encountered by orthopaedic surgeons. One of the major risk factors of this condition is underlying trochlear dysplasia (TD). Recent trends have indicated the use of multiple procedures to correct patellar instability under these conditions.

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Background: Tuberculosis (TB) remains a significant health concern in India, especially among households with children and young adolescents aged 6-17 years. Despite ongoing research, there is a knowledge gap regarding specific risk factors for TB within this demographic. This study aims to bridge this gap by examining the association between TB and various socio-demographic factors, including socioeconomic status, nutritional status, and environmental conditions.

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Background: Pancreatic ductal adenocarcinoma (PDAC) remains one of the most lethal malignancies, with limited treatment options yielding poor outcomes. This study aimed to evaluate the real-world clinical characteristics, treatment patterns, and outcomes of patients with locally advanced unresectable and de-novo metastatic PDAC in Saudi Arabia, providing regional data to compare with international benchmarks.

Methods: This is a retrospective, multicentre study involving 350 patients diagnosed with unresectable locally advanced or de-novo metastatic PDAC between January 2015 and November 2023.

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Article Synopsis
  • Allergic fungal rhinosinusitis (AFRS) is a type of chronic rhinosinusitis linked to a hypersensitivity to fungi, particularly affecting immunocompromised individuals.
  • A 32-year-old patient with a history of Wilson's disease and a liver transplant faced severe nasal obstruction and other symptoms, leading to a diagnosis of AFRS after surgery and biopsy, but risks from carotid artery dehiscence complicated further surgical interventions.
  • The patient achieved complete symptom resolution after starting dupilumab, a biologic therapy, highlighting its potential as a safe and effective treatment option for high-risk patients with AFRS.
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Augmented Reality for Surgical Navigation: A Review of Advanced Needle Guidance Systems for Percutaneous Tumor Ablation.

Radiol Imaging Cancer

January 2025

From the Department of Clinical Affairs, MediView XR, Cleveland, Ohio (M.E.); College of Medicine, Alfaisal University, Riyadh, Saudi Arabia (A.B.); and Department of Diagnostic Radiology, Section of Interventional Radiology, Cleveland Clinic Foundation, 9500 Euclid Ave, Cleveland, OH 44195-5243 (S.K., K.G., C.M.).

Percutaneous tumor ablation has become a widely accepted and used treatment option for both soft and hard tissue malignancies. The current standard-of-care techniques for performing these minimally invasive procedures require providers to navigate a needle to their intended target using two-dimensional (2D) US or CT to obtain complete local response. These traditional image-guidance systems require operators to mentally transpose what is visualized on a 2D screen into the inherent three-dimensional (3D) context of human anatomy.

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Chronological age (CA) estimation is essential in medicine, forensics, and law. Teeth are often used for this due to their reliability. The Demirjian and the Nolla methods are used to estimate dental age (DA).

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Hypoalbuminemia as a predictor of severe dengue: a systematic review and meta-analysis.

Expert Rev Anti Infect Ther

January 2025

Center for Global Health Research, Saveetha Medical College and Hospital, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, India.

Article Synopsis
  • Dengue fever is a major health issue globally, particularly in tropical regions, where identifying hypoalbuminemia helps in diagnosing severe cases early.
  • A systematic review of 17 studies found a significant difference in albumin levels between severe and non-severe dengue patients, with higher hypoalbuminemia noted in children.
  • The research confirms that low albumin levels are a key predictor of severe dengue, which can help healthcare providers improve patient care through tailored treatment plans.
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Article Synopsis
  • Pneumomediastinum, often occurring silently post-trauma, complicates diagnoses especially when paired with other conditions like pneumothorax and pneumoperitoneum, largely due to the Macklin effect where air escapes from ruptured alveoli.
  • An 18-year-old male involved in a car crash was found with severe pneumothorax and subcutaneous emphysema but showed no signs of significant esophageal or bronchial injury upon further evaluation.
  • Despite alarming initial imaging, the patient's treatment was conservative, allowing for a gradual healing process and eventual discharge without complications, illustrating the need for careful assessment in trauma management.
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