676 results match your criteria: "King Saud University-Riyadh[Affiliation]"

Hybrid populations of Africanized honey bees (-hybrids), notable for their defensive behaviour, have spread rapidly throughout South and North America since their unintentional introduction. Although their migration has slowed, the large-scale trade and movement of honey bee queens and colonies raise concern over the accidental importation of -hybrids to previously unoccupied areas. Therefore, developing an accurate and robust assay to detect -hybrids is an important first step toward mitigating risk.

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The jujube honey from the Moroccan Middle Atlas area is thoroughly described in this study, which takes into account melissopalynological, physicochemical, antioxidant, mineral, and phytochemical characteristics. Twelve samples of jujube honey underwent in-depth analyses between 2019 and 2021. The honey's unifloral origin was confirmed by pollen analysis, which revealed that pollen predominated along with pollen from 21 other species.

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The current study focuses on the effect of extract on the probiotic properties of lactic acid bacteria isolated from camel milk in the region of El Oued (Algeria). Chromatographic analysis by HPLC was carried out to detect the most important compounds extracted from the plant. The total phenolic and flavonoid contents were determined using the colorimetric procedures Folin-Ciocalteu and aluminum chloride.

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Diosmin, a potent bioflavonoid derived from citrus fruits, has gained significant attention for its anticancer potential, reflecting a critical need in the ongoing battle against cancer. Amidst increasing cancer incidence, the quest for safer and more effective treatments has brought diosmin to the forefront, given its unique pharmacological profile distinct from other flavonoids. Diosmin's anticancer mechanisms are multifaceted, involving apoptosis induction, angiogenesis inhibition, and metastasis prevention.

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Objectives: The study aims to characterize BRCA1/2 mutations in Pakistani gastric cancer (GC) patients, identifying unique pathogenic variants and evaluating their potential as diagnostic biomarkers, while also exploring therapeutic avenues for personalized treatment strategies.

Methodology: In this study, we investigated the role of Breast Cancer gene 1 (BRCA1) and Breast Cancer gene 2 (BRCA2) mutations in Pakistani GC patients and their functional implications using Next-Generation Sequencing (NGS).

Results: Through NGS, we identified a total of 19 mutations in BRCA1 and 11 mutations in BRCA2, all with high mutation quality scores.

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Article Synopsis
  • The rise of antimicrobial-resistant strains is a major threat to existing treatments, highlighting the need for new therapies.
  • Researchers developed a new compound, QPyNATh, by modifying thiazolidine with fatty acids to enhance its ability to disrupt bacterial membranes, showing effective inhibition against Gram-positive bacteria while being selective for bacterial cells over human cells.
  • Animal studies demonstrated that QPyN16Th significantly reduced MRSA infections in zebrafish and showed no signs of resistance developing, suggesting its potential as a biocompatible treatment for resistant bacterial infections.
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In this paper, we use density functional theory (DFT) using full-potential linearized augmented plan wave plus local orbital method (FP-LAPW + lo). The structural, electronic, optical, photocatalytic, mechanical, vibrational, and thermodynamical behaviors of new double antiperovskite (DAP) CsAgBiX (X = Cl, Br, I) were studied. The band structure was calculated with and without spin orbit coupling (SOC).

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This study examined the fragmentation, degradation pathways and DPs of pirtobrutinib, which have not been previously reported in the literature. The main goal of the current work is to develop, validate, and characterize forced degradation products using LC-MS/MS. An isocratic HPLC methodology was developed for the quantitative measurement of pirtobrutinib at a of 219 nm.

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Zinc oxide nanoparticles (ZnO NPs) can possibly serve as a pervasive source of essential nutrient zinc in agricultural crops in the future. The major environmental concerns with ZnO NPs might be their toxicity and incorrect dosage, which might lead to crop damage and environmental pollution. Interplay between ZnO NPs and () will be of interest, yet little is known about apropos interaction of these two, which will assist in optimizing the dose of ZnO NPs for their commercial use in agriculture.

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Fungal pathogens pose a persistent threat to crop plants, risking global food security. Anthracnose of sorghum caused by causes a considerable loss in sorghum production. This study aimed to manage the anthracnose disease in sorghum using green-synthesized TiO nanoparticles using pomegranate peel and to assess their impacts on the agroeconomic attributes of sorghum.

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Many naturally derived compounds are currently used in oncotherapy. Besides official medicine, complementary and alternative medicine practices, including old herbal remedies, are widely used and accepted as additional tools in cancer treatment. Nakai (AGN), a medicinal herb in Asia, has roots historically used in medicine.

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Iron deficiency anemia is a global health concern, affecting around 2 billion people. Oral iron therapy often causes severe gastro-intestinal issues. , member of the Brassicaceae family, is valued in traditional medicine and renowned for its rich iron and vitamin C content.

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This study aims to investigate the physicochemical characteristics of the exopolysaccharides (EPS) extracted from the microalgae species sp., as well as to evaluate their antioxidant, antibacterial, and anti-apoptotic activities. The crude extracellular polysaccharides from the halophilic diatom sp.

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Porous materials play a crucial role in the extraction of trace analytes; yet, the attainment of high selectivity and efficient regeneration continues to pose a considerable problem. In this study, we employed a green method to synthesize porous carbon microspheres. These microspheres were subsequently functionalized with aminophosphonic acid to facilitate the extraction of heavy metal ions from real samples.

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A very simple and cost-effective silica-based hybrid stationary phase was synthesized for the separation of five synthetic peptides, five proteins, and benzene derivatives. Silica monolith was synthesized sol-gel process. Particles obtained through the grinding of silica monolith were suspended in methanol and sedimented under gravity to obtain sub-2 μm particles.

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In the current study, the potential interaction mechanisms between capmatinib (CAP), a selective tyrosine kinase inhibitor, and calf thymus double-stranded DNA (ds-DNA) were evaluated. In this research, we construct an amplified electrochemical platform based on a disposable pencil graphite electrode (PGE) modified with nanostructured CeO decorated carbon nanofiber ceramic film (CeNPs@CNF-CF) for monitoring CAP-dsDNA interaction at physiological pH. The morphology and structure of the obtained CeNPs@CNF nanocomposite were characterized.

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Article Synopsis
  • The study aimed to evaluate the validity of the Arabic translations of the Vanderbilt ADHD Diagnostic Scale (VADRS-A) through analyses involving parents and teachers in Saudi Arabia.
  • It included a sample of 1,812 participants, assessing children aged 5 to 12, with parents rating the Arabic Vanderbilt ADHD Diagnostic Parent Rating Scale (VADPRS-A) and teachers using the Arabic Vanderbilt ADHD Diagnostic Teacher Rating Scale (VADTRS-A).
  • Results showed a strong consistency and correlation among the factors of both scales, with high percentages of variance explained (59% for VADPRS-A and 69.20% for VADTRS-A), indicating their effectiveness in diagnosing ADHD.
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Given the critical role of carbonic anhydrase IX (CA IX) in various pathological conditions, there is a significant demand for new inhibitors to enhance patient outcomes and clinical management. In this study, we examined the inhibitory effectiveness of five coumarins derived from against CA IX using assays and computational modeling. Among the coumarins tested, xeroboside and isobaisseoside were identified as the most potent inhibitors.

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Uric acid is the end product of purine metabolism and is a key biomarker for various diseases. Under normal conditions, there is a balance between its production and excretion. Its higher concentration can cause inflammation and severe pain, which makes it necessary to monitor its level for the diagnosis, management, and treatment of various pathological conditions.

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The pursuit of efficient and sustainable energy storage solutions has fueled significant interest in the development of advanced materials for supercapacitors. Among these, two-dimensional (2D) materials undoubtingly have emerged as promising candidates due to their unique structural and electrochemical properties. To address the inherent challenges such as restacking, limited ion-accessibility, limited scalability, stability under operational conditions, and the intricate balance between surface area and conductivity that hinder the practical application of 2D materials, this article delves into innovative approaches and emerging strategies and prospects that aim to enhance their performance and durability.

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  • Temporomandibular disorders (TMD) significantly affect patients' quality of life, impacting their ability to engage in daily activities and causing both physical and mental distress, prompting a comprehensive review of oral health-related quality of life (OHRQoL) in TMD cases.
  • A systematic search of literature from 2013 to 2023 identified 15 relevant articles through rigorous criteria, with ten included in a meta-analysis; findings revealed consistently poor OHRQoL among TMD patients, showing high variation in results.
  • The study concluded that the overall OHRQoL is low for TMD patients compared to healthy individuals, indicating a significant impact of TMD on their quality of
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Research on energy storage devices has focused on improving asymmetric supercapacitors (ASCs) by utilizing two different electrode materials. In this work, we have successfully prepared a unique material, ZnO/SnO nanoflower, the hydrothermal method. Graphene oxide (GO) was synthesized by applying the modified Hummers' technique.

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Modern technological breakthroughs depend on nonlinear optical (NLO) and photovoltaic (PV) materials, essential for creating advanced photonic devices and efficient solar cells. Herein, the NLO, PV, electrical, and photophysical characteristics of proposed chromophores (WLK-1-WLK-6) designed from pyridoquinazolindone-containing triphenylamine have been systematically altered by the addition of different spacers categorized as K1, K2, K3, K4, K5, and K6 (named as i-series). This fine-tuning was accomplished using TD-DFT, DFT computations, and the Scharber model.

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  • The study aimed to evaluate the effectiveness of a polyherbal paste (PHP) mixed with honey on treating constipation in rats induced by the drug loperamide.
  • Thirty male rats were grouped and treated with different interventions, including PHP at low, medium, and high doses, while various health parameters were monitored over a week.
  • Results indicated that the highest dose of PHP significantly improved fecal water content, increased feces amount, enhanced gastrointestinal transit, and reduced intestinal damage, suggesting its potential as a treatment for drug-induced constipation.
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This work demonstrates the facile one step hydrothermal synthesis of carbon dots doped with nitrogen and sulfur (SCDs). The carbon dots have various uses, including their use as molecular payloads for antioxidant and drug delivery purposes. The sizes of the CDs were determined using transmission electron microscopy (TEM), which revealed an average size of 4.

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