127 results match your criteria: "Life Science and Environment Research Institute[Affiliation]"

Laccase production was evaluated in 108 fungal isolates recovered from the eastern coast of Saudi Arabia, a critical element in environmental biodegradation and biotransformation. The most active isolate was identified as MLK46 (GenBank accession no. PQ100161).

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Intra-articular delivery of disease-modifying osteoarthritis drugs (DMOADs) is likely to be most effective in the early stages of post-traumatic osteoarthritis (PTOA), when symptoms are minimal, and patients remain physically active. To ensure effective therapy, DMOAD delivery systems therefore must withstand repeated mechanical loading without altering the kinetics of drug release. While soft materials are typically preferred for DMOAD delivery, mechanical loading can compromise their structural integrity and disrupt controlled drug release.

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The emergence of multidrug-resistant bacteria presents a significant global health threat. Liposomal antibiotics have shown a potential to improve antibiotic delivery and efficacy. This study aimed to develop liposomes encapsulating tobramycin (TOB) and methylglyoxal (MGO) to enhance TOB activity while reducing bacterial adhesion and biofilm formation.

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Type 2 Diabetes Mellitus (T2DM) is linked to multiple complications, including cognitive impairment, and the prevalence of memory-related neurodegenerative diseases is higher in T2DM patients. One possible theory is the alteration of the microvascular and macrovascular environment of the blood-brain barrier (BBB). In this study, we employed different approaches, including RT-PCR, functional pharmacokinetic studies using sodium fluorescein (NaFL), and confocal microscopy, to characterize the functional and molecular integrity of the BBB in a T2DM animal model, leptin receptor-deficient mutant mice ( mice).

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The journal retracts the article, "Optimized Ellagic Acid-Ca Pectinate Floating Beads for Gastroprotection against Indomethacin-Induced Gastric Injury in Rats" [...

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Unleashing the power of artificial intelligence for diagnosing and treating infectious diseases: A comprehensive review.

J Infect Public Health

November 2023

Department of Community Medicine and Health Care for Pilgrims, Faculty of Medicine, Umm Al-Qura University, Makkah 21955, Saudi Arabia. Electronic address:

Infectious diseases present a global challenge, requiring accurate diagnosis, effective treatments, and preventive measures. Artificial intelligence (AI) has emerged as a promising tool for analysing complex molecular data and improving the diagnosis, treatment, and prevention of infectious diseases. Computer-aided detection (CAD) using convolutional neural networks (CNN) has gained prominence for diagnosing tuberculosis (TB) and other infectious diseases such as COVID-19, HIV, and viral pneumonia.

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Insights from the molecular docking analysis of SGLT2 and FIMH to combat uropathogenicity.

Bioinformation

November 2022

Quality and Outcome Control Management, General Directorate of Health Affairs-Madina Region, Ministry of Health, Madina 32000, Saudi Arabia.

SGLT2 inhibitors are a novel class of FDA approved anti-diabetes drugs. They act by blocking the SGLT2 protein, which prevents glucose reabsorption, leading in enhance glucose excretion and lower blood glucose levels. In diabetic patients, SGLT2 inhibitors have been linked to urinary tract infections (UTIs).

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Forty-six promising chitinolytic isolates were recovered during a screening for chitinolytic bacteria in the environment of Saudi Arabia. The top three isolates belonged to the genus Streptomyces. Streptomyces variabilis Am1 was able to excrete the highest amount of chitinases, reaching the maximum at 84 h with 0.

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Gene editing, especially with clustered regularly interspaced short palindromic repeats associated protein 9 (CRISPR-Cas9), has advanced gene function science. Gene editing's rapid advancement has increased its medical/clinical value. Due to its great specificity and efficiency, CRISPR/Cas9 can accurately and swiftly screen the whole genome.

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Leishmaniasis is a zoonotic disease transmitted in humans by the bite of -infected phlebotomine sandflies. Each year approximately 58,500 cases of leishmaniasis are diagnosed across the globe, with a mortality rate of nearly seven percent. There are over 20 parasitic strains of which are known to cause distinct types of leishmaniasis and pose an endemic threat to humans worldwide.

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Background: Antibiotic overuse and misuse have greatly facilitated the development of antimicrobial resistance (AMR). The Kingdom of Saudi Arabia is one of the countries that took a strategic approach, beginning with the prohibition of over-the-counter antibiotic dispensing, followed by the implementation of antimicrobial stewardship programs and various educational and awareness governmental activities and plans. However, the status of antibiotic prescriptions and dispensing in Saudi community pharmacies is still unclear.

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As medical science and technology progress towards the era of "big data", a multi-dimensional dataset pertaining to medical diagnosis and treatment is becoming accessible for mathematical modelling. However, these datasets are frequently inconsistent, noisy, and often characterized by a significant degree of redundancy. Thus, extensive data processing is widely advised to clean the dataset before feeding it into the mathematical model.

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() is involved in several hospital and community-acquired infections. The prevalence of -producing-carbapenemase (KPC) resistance genes rapidly increases and threatens public health worldwide. This study aimed to assess the antibiotic resistance level of isolates from Makkah Province, Saudi Arabia, during the Islamic 'Umrah' ritual and to identify the plasmid types, presence of genes associated with carbapenem hydrolyzing enzymes, and virulence factors.

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This work describes the draft genome sequence of Streptococcus agalactiae strain AH2, which was isolated from moribund farmed hybrid tilapia (Oreochromis niloticus × Oreochromis aureus) in Saudi Arabia. The draft genome is composed of a single chromosome of 2,104,071 bp, with a GC content of 35.7%.

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Background: Among gram-negative bacteria, Klebsiella pneumoniae is one of the most common causes of healthcare-related infection. Bloodstream infections (BSIs) caused by Klebsiella pneumoniae are notorious for being difficult to treat due to resistance to commonly used antimicrobials. Klebsiella pneumoniae isolates from bloodstream infections are becoming increasingly resistant to carbapenems.

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Neurodegenerative and neuronal-related diseases are major public health concerns. Human vulnerability to neurodegenerative diseases (NDDs) increases with age. Neuronal hormones and neurotransmitters are major determinant factors regulating brain structure and functions.

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Mitochondria are double-membraned cytoplasmic organelles that are responsible for the production of energy in eukaryotic cells. The process is completed through oxidative phosphorylation (OXPHOS) by the respiratory chain (RC) in mitochondria. Thousands of mitochondria may be present in each cell, depending on the function of that cell.

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Fascin is essential for mammary gland lactogenesis.

Dev Biol

December 2022

Stem Cell and Tissue Re-Engineering Program, King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia; Collage of Medicine, Al-Faisal University, Riyadh, Saudi Arabia. Electronic address:

Fascin expression has commonly been observed in certain subtypes of breast cancer, where its expression is associated with poor clinical outcome. However, its role in normal mammary gland development has not been elucidated. Here, we used a fascin knockout mouse model to assess its role in normal mammary gland morphogenesis and lactation.

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Curcumin (CUR) has impressive pharmacologic properties, including cardioprotective, neuroprotective, antimicrobial, and anticancer activity. However, the pharmaceutical application of CUR is limited due to its poor aqueous solubility and low bioavailability. The development of novel formulations has attracted considerable attention to the idea of applying nanobiotechnology to improve the therapeutic efficacy of these challenging compounds.

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When COVID-19 was first announced back in 2019, there were vast number of attempts to halt the progression of the SARS-CoV-2 virus once and for all [...

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The increasing prevalence of antimicrobial-resistant (AMR) bacteria along with the limited development of antimicrobials warrant investigating novel antimicrobial modalities. Emerging inorganic engineered nanomaterials (ENMs), most notably silver nanoparticles (AgNPs), have demonstrated superior antimicrobial properties. However, AgNPs, particularly those of small size, could exert overt toxicity to mammalian cells.

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is mainly responsible for sepsis, urethritis, and respiratory tract infections. These bacteria may affect the transcription of the host and particularly their immune system by producing changes in their epigenetics. In the present study, four proteins of were used to predict the epitopes for the construction of an mRNA vaccine against infections.

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Dynamic cytosolic foci of DPPA4 in human pluripotent stem cells.

Tissue Cell

October 2022

Department of Comparative Medicine, King Faisal Specialist Hospital & Research Centre, 11211 Riyadh, Saudi Arabia; College of Medicine, Alfaisal University, 11533 Riyadh, Saudi Arabia.

DPPA4 is essential for the pluripotent stem cell state, yet its function is poorly understood. DPPA4 is localized in the nucleus, where it is associated with active chromatin. We now report that it is also present in the cytosol, where it appears as diffused clouds, distinct foci and sometimes as spaghetti-like structures.

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Enhanced silver nanoparticle-induced pulmonary inflammation in a metabolic syndrome mouse model and resolvin D1 treatment.

Part Fibre Toxicol

August 2022

School of Health Sciences, College of Health and Human Sciences, Purdue University, West Lafayette, IN, USA.

Background: Metabolic syndrome (MetS) exacerbates susceptibility to inhalation exposures such as particulate air pollution, however, the mechanisms responsible remain unelucidated. Previously, we determined a MetS mouse model exhibited exacerbated pulmonary inflammation 24 h following AgNP exposure compared to a healthy mouse model. This enhanced response corresponded with reduction of distinct resolution mediators.

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Article Synopsis
  • - Several studies have looked into how different mouth rinses might reduce the SARS-CoV-2 viral load, but results are inconsistent; this particular study aims to evaluate the effectiveness of various over-the-counter mouth rinses and lozenges compared to saline in COVID-19 patients.
  • - The clinical trial included four groups: chlorhexidine mouth rinse, chlorhexidine lozenges, povidone iodine mouth rinse, and saline (control), with saliva samples collected before and after using the treatments for analysis via PCR.
  • - While no significant differences were found between the groups initially, there was a notable reduction in salivary viral load across all groups, particularly with povidone iodine mouth rinse, suggesting its potential benefit
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