Publications by authors named "Felemban M"

Inflammatory myofibroblastic tumor is a rare occurring benign tumor composed of myofibroblastic spindle cells. Lung inflammatory myofibroblastic tumor is difficult to diagnose and may mimic lung cancer or infectious etiology. Surgical intervention with final histopathologic confirmation remains the mainstay of diagnosis.

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A simple and highly effective Schiff-base fluorescent chemosensor (S1) was synthesized and characterized by HNMR and fluorescence spectroscopy. The synthesized chemosensor was applied for the selective and sensitive detection of Hg ions. The chemosensor exhibited a strong 'turn-on' fluorescence response in a CHOH/HO (1:9, v/v) solution due to complex formation (S1-Hg) which block photo induce electron transfer (PET).

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Paraquat (PQ) is a potent and widely utilized herbicide known for its effectiveness in controlling a broad spectrum of weeds. Its chemical properties make it an invaluable tool in agriculture, where it helps maintain crop yields and manage invasive plant species. However, despite its benefits in weed management, PQ poses significant risks due to its severe toxicity, which affects multiple organ systems in both humans and animals.

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  • The study investigated the prevalence and risk factors of extended-spectrum beta-lactamase (ESBL)-producing bacteria in children hospitalized for urinary tract infections (UTIs) at a hospital in Saudi Arabia from 2018 to 2022.
  • Out of 242 urine samples analyzed, 20.7% of the isolates were found to be ESBL producers, with previous antibiotic usage and recurrent UTIs identified as significant risk factors.
  • The ESBL-producing bacteria showed high resistance rates to ampicillin and third-generation cephalosporins, but were universally sensitive to meropenem, highlighting the need for better antibiotic management in high-risk pediatric cases.
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  • Supercritical fluids (SCFs) are a safer, eco-friendly alternative to harmful solvents in drug nanoparticle preparation, enhancing drug solubility.
  • The study focuses on using supercritical carbon dioxide (SCCO) to improve the solubility of the chemotherapeutic drug Letrozole (LET) through machine learning models.
  • The research compares several models, finding the RBF-SVM model to be the best performer with a high degree of accuracy (R-squared = 0.9947) and minimal prediction error (0.1289).
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Objectives: This study was undertaken to assess the oral health status among physically disabled Saudi patients.

Methods: Recruitment took place in the Armed Forces Centre for Health Rehabilitation in Taif, Saudi Arabia. 124 patients living with a physical disability were enrolled and divided into three groups: hemiplegia, paraplegia and quadriplegia.

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Hematopoietic stem cell transplantation is the only curative intervention for myelodysplastic syndrome, with graft-versus-host disease (GVHD) being a frequently encountered consequence. GVHD is classified as acute (aGVHD) or chronic (cGVHD). The oral cavity is the most impacted by chronic.

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BACKGROUND Modification of the glass fiber post (GFP) with titanium dioxide or silver particles can improve the durability and reliability of dental treatments for ensuring long-term success. This research assessed the tensile bond strength (TBS) of an adhesive system used for cementing GFPs into root dentin following the incorporation of nanoparticles of titanium dioxide (NTiO2) and silver (NAg). MATERIAL AND METHODS Sixty human maxillary canines were prepared to create a 10-mm intra-radicular space for post placement from the cementoenamel junction.

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Glaucoma is a prevalent neurodegenerative disease. It causes progressive visual loss and is one of the most common causes of blindness worldwide. It can be categorized into open-angle or closed-angle glaucoma.

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: This review focuses on reviewing studies from the literature regarding the effects of deep margin elevation on the surrounding periodontium. : A review of the literature was carried out using the following online databases: Embase, The Cochrane Library, MEDLINE-PubMed and Google Scholar. Our search was limited to articles from 2010 to 2023.

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Introduction: The present investigation compared the stability and volumetric changes of two different grafting material used for lateral window sinus floor augmentation (LWSFA).

Methods: Sixteen patients with a total 20 maxillary sinuses in need of LWSFA were included in the present study. The sinuses were grafted with either 100% anorganic bovine bone mineral (ABBM) alone (Group 1) or a mixture (0.

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The combination of disorder of sex development and canal of Nuck hernia, in which the hernial sac contains the internal reproductive organs (gonads) of both genders, is exceedingly rare. We present a unique case of a neonate who presented with ambiguous genitalia and a lump in the left inguinal region. The child underwent various radiographic procedures and hernial repair.

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Objective: The transcriptional landscape of Klinefelter syndromeduring early embryogenesis remains elusive. This study aimed to evaluate the impact of X chromosome overdosage in 47,XXY males induced pluripotent stem cells (iPSCs) obtained from patients with different genomic backgrounds and ethnicities.

Design And Method: We derived and characterized 15 iPSC lines from four Saudi 47,XXY KS patients and one Saudi 46,XY male.

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Oral squamous cell carcinoma (OSCC) is the most common epithelial tumor of the oral cavity. Gingival tumors, a unique type of OSCC, account for 10% of these malignant tumors. The antineoplastic properties of statins, including pitavastatin (PV), and the essential oil of the leaf (Pd oil) have been adequately reported.

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Caries lesions during cement repairs are a severe issue, and developing a unique antimicrobial restorative biomaterial can help to reduce necrotic lesion recurrence. As a result, extract was used to biosynthesize copper nanoparticles (TVE-CuNPs) exhibiting different characteristics (TVE). Along with TVE-CuNPs, commercial silver nanoparticles (AgNPs) and metronidazole were combined with glass ionomer cement (GIC) to test its antibacterial efficacy and compressive strength.

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Drug administration to the wound site is a potential method for wound healing. The drug retention duration should be extended, and drug permeability through the buccal mucosal layer should be regulated. Oral wounds can be caused by inflammation, ulcers, trauma, or pathological lesions; if these wounds are not treated properly, they can lead to pain, infection, and subsequent undesirable scarring.

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Objectives: To develop a standardised template to support physiotherapist reporting of lower limb kinematic waveform data.

Design: Within and between user agreement identification of movement compensation strategies.

Setting: University Health Board Physiotherapy Department.

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Background: Obesity is associated with the quantitative changes in miRNAs and their target genes. However, the molecular basis of their dysregulation and expression status correlations is incompletely understood. Therefore, this study aims to examine the shared differentially expressed miRNAs and their target genes between blood and adipose tissues of obese individuals to identify potential blood-based biomarkers.

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Desalination technology based on Reverse Osmosis (RO) membrane filtration has been resorted to provide high-quality drinking water. RO produced drinking water is characterized by a low bacterial cell concentration. Monitoring microbial quality and ensuring membrane-treated water safety has taken advantage of the rapid development of DNA-based techniques.

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Cyber-security of modern power systems has captured a significant interest. The vulnerabilities in the cyber infrastructure of the power systems provide an avenue for adversaries to launch cyber attacks. An example of such cyber attacks is False Data Injection Attacks (FDIA).

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Introduction Many studies have suggested a link between vitamin D deficiency and the development of other atopic diseases like allergic rhinitis (AR). AR can lead to sleep disturbance, fatigue, depressed mood, and compromised cognitive function, which can impair the quality of life and productivity in many people. Objective We aimed to determine the association between vitamin D levels and AR and the effect of vitamin D on atopy markers.

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Cell replacement therapy is a promising treatment for irreversible retinal cell death in diverse diseases such as Stargardt's disease, age-related macular degeneration, and retinitis pigmentosa. The final impact of all retinal dystrophies is the loss of photoreceptors; hence, there is a pressing need for research into replacement. Seminal work has shown that a simple three-dimensional culture system enables differentiation of human pluripotent stem cells to retinal organoids containing large numbers of photoreceptors developing alongside retinal neurons and Müller glia cells in a laminated structure that resembles the native retina.

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This unit describes a protocol for generating retinal organoids that contain all major retinal cell types and are responsive to light from human pluripotent stem cells (hPSCs). hPSCs are differentiated in 96-well plates to allow large-scale production of organoids that could be used for multiple applications, including study of human retinal development, disease modeling, and compound screening. The differentiation approach is based on the knowledge that insulin-like growth factor 1 signaling together with retinoic acid and triiodothyronine is important for retinal development.

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A major goal in the stem cell field is to generate tissues that can be utilized as a universal tool for in vitro models of development and disease, drug development, or as a resource for patients suffering from disease or injury. Great efforts are being made to differentiate human pluripotent stem cells in vitro toward retinal tissue, which is akin to native human retina in its cytoarchitecture and function, yet the numerous existing retinal induction protocols remain variable in their efficiency and do not routinely produce morphologically or functionally mature photoreceptors. Herein, we determine the impact that the method of embryoid body (EB) formation and maintenance as well as cell line background has on retinal organoid differentiation from human embryonic stem cells and human induced pluripotent stem cells.

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Article Synopsis
  • Tissue-specific extracellular matrices (ECM) support stem cell renewal and differentiation, leading to advancements in tissue engineering through natural ECM scaffolds that closely mimic actual tissues.
  • The study successfully produced decellularised ECM-derived peptides from neural retina and retinal pigment epithelium to improve the differentiation of human pluripotent stem cells into retinal organoids.
  • The addition of these decellularised matrices significantly enhanced the generation of rod photoreceptors and improved synapse formation and light responsiveness, presenting a promising advancement for regenerative medicine applications.
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