Publications by authors named "Ahmed Y"

Background: Recently, silver nanoparticles (Ag-NPs) were shown to provoke oxidative stress through the release of reactive oxygen species and consequently induce cell damage. Selenium-loaded chitosan nanoparticles (CS-SeNPs) have anti-inflammatory and antioxidant effects, indicating that they ameliorate Ag-NPs-induced ovarian toxicity.

Objective: This study aimed to assess how well CS-SeNPs counteract the damaging effects of Ag-NPs on the ovarian tissue of adult female albino rats.

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Objective: Mild traumatic brain injury (mTBI) is frequently overlooked in polytrauma patients due to the overshadowing of more severe injuries, a fact that makes its identification in post-acute settings challenging since symptoms overlap with other conditions and no validated diagnostic tools exist. To address this gap, this scoping review explored the literature on mTBI diagnosis in post-acute civilian polytrauma settings.

Methods: By utilizing the Arksey and O'Malley framework and PRISMA-ScR guidelines, the review focused on studies from 2010 to 2024 related to delayed mTBI diagnosis in adults.

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Porous polymers, including hydrogels, covalent organic frameworks (COFs), and hyper crosslinked polymers (HCPs), have become essential in biomedical research for their tunable pore architectures, large surface areas, and functional versatility. This review provides a comprehensive overview of their classification and updated synthesis mechanisms, such as 3D printing, electrospinning, and molecular imprinting. Their pivotal roles in drug delivery, tissue engineering, wound healing, and photodynamic/photothermal therapies, focusing on how pore size, distribution, and architecture impact drug release, cellular interactions, and therapeutic outcomes, are explored.

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Parathyroid adenoma is a common endocrine disorder, but its intrathyroid presentation is relatively rare. The traditional approach, such as thyroid blind lobectomy, is the most frequent modality of treatment due to the possible unclear localization of the adenoma in the preoperative workup. This increases the risk of unnecessary probability of hypothyroidism.

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Aluminum oxide nanoparticles (AlO NPs) are widely utilized in vaccine manufacturing and other medical preparations. Melatonin has numerous effects as an antioxidant and anti-apoptotic. The purpose of this study was to examine the beneficial impact of melatonin on AlO NPs toxicity in the spinal cord.

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Objectives: To compare the efficacy of intrathecal fentanyl and dorsal penile nerve block for postoperative pain management in patients undergoing inflatable penile prosthesis (IPP).

Patients And Methods: A prospective single-center study included 80 patients amenable to IPP. Patients were divided equally into two groups.

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Diabetic testicular dysfunction (DTD) poses a significant threat to male reproductive health. This study delves into the potential of piperazine ferulate (PF), a natural phenolic compound, in alleviating DTD and sheds light on its underlying mechanisms in rats. Animals were divided into the control, PF, diabetic, and diabetic plus PF groups.

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Article Synopsis
  • * Initial treatments included antibiotics but follow-up revealed worsening symptoms and a diagnosis of empyema, which was linked to a bacterial infection from periodontal disease rather than standard sources.
  • * The case emphasizes the need to investigate rare pathogens in pleural infections, especially those that may originate from oral health issues, highlighting how complex these conditions can be in patients with multiple health concerns.
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Soft tissue sarcomas are malignant tumors characterized by heterogeneity and are associated with a high mortality rate. Histopathological grading is considered a pivotal factor in prognostication and treatment planning. While core needle biopsy exhibits high accuracy in determining tumor histology, it fails in some cases, potentially misclassifying high-grade tumors as low-grade.

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Background: Arsenic-trioxide (ATO) is an effective therapy for acute promyelocytic leukemia. Unfortunately, its utility is hindered by the risk of myocardial injury. Both bisoprolol (BIS) and trimetazidine (TMZ) have various pharmacological features, including anti-oxidant, anti-inflammatory, and anti-apoptotic properties.

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Background/objectives: Three-dimensional printing technology has emerging interest in pharmaceutical manufacturing, offering new opportunities for personalized medicine and customized drug delivery systems. Fused deposition modeling (FDM) is highly regarded in the pharmaceutical industry because of its cost effectiveness, easy operation, and versatility in creating pharmaceutical dosage forms. This review investigates different methods of incorporating active pharmaceutical ingredients (APIs) into filament matrices for use in fused deposition modeling (FDM) 3D printing.

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Article Synopsis
  • Archaeal group II chaperonins, or heat shock proteins (HSPs), are crucial for protein folding and protection during thermal stress in Sulfolobales, especially when faced with thermal shock.
  • HSPs maintain structural integrity at neutral pH and varying temperatures but show significant changes at ultra-low pH (pH 2), with HSPα and HSPβ being more thermostable than HSPβ-coh.
  • Molecular dynamics simulations support lab findings, revealing stability differences among HSP subtypes and highlighting limitations in acid tolerance despite their thermal resilience.
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Objective: To assess the feasibility and outcomes of immediate breast reconstruction using a dermal sling and polypropylene mesh for fixation after skin-reducing mastectomy with prepectoral prosthesis placement in patients with large breasts who were diagnosed with cancer.

Methods: This retrospective study included demographic and clinical data from female patients with breast cancer and large breasts, who were candidates for skin-reducing mastectomy and immediate reconstruction. Data regarding operative technique, implant size, operative duration, and intraoperative complications were retrieved.

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Bronchiolitis obliterans (BO) is a rare and severe respiratory complication of Stevens-Johnson syndrome (SJS), which primarily affects the small airways and causes progressive respiratory decline. We present the case of a young male with autism spectrum disorder who developed BO after an episode of SJS triggered by amoxicillin. Initially, the patient presented with an ulcerative rash and respiratory symptoms and received high-dose corticosteroids, leading to partial resolution of mucocutaneous lesions.

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Background: Heart failure (HF) is a complex cardiovascular disease. Effective management typically involves four main medications: angiotensin-converting enzyme inhibitors/angiotensin receptor blockers, beta-blockers, angiotensin receptor-neprilysin inhibitors, and mineralocorticoid receptor antagonists, along with sodium-glucose co-transporter-2 inhibitors (SGLT2i). The primary objective of this article is to assess and identify the utilization of four-pillar regimen for HF managment and explore the characteristics of the patients being on the four-pillar regimen in Jordan.

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The ongoing war crisis in Khartoum, Sudan, has created significant challenges for medical students, impacting their education. A cross-sectional study involving 224 medical students was conducted in Khartoum state to explore the challenges faced by medical students during this crisis, using a structured Google Form questionnaire. The majority of participants were female (65.

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Article Synopsis
  • Idiopathic hypereosinophilic syndrome (i-HES) is a rare condition marked by high eosinophil levels and organ damage without a clear cause.
  • A 42-year-old man with no prior health issues showed symptoms similar to pneumonia but worsened to serious complications despite antibiotics, leading to the diagnosis of i-HES after ruling out other causes.
  • Quick treatment with high-dose corticosteroids significantly improved his condition, highlighting the need for early detection and comprehensive care in managing i-HES's severe manifestations.
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The controlled synthesis of Ag/Au nanocomposite particles has remained a significant challenge in nanomaterial research. This study presents the synthesis, characterization, and surface-enhanced Raman scattering (SERS) performance of silver (Ag) and gold (Au) nanostar composites. The structural and plasmonic properties of these nanocomposites were optimized by varying the molar ratios of silver nanostars (AgNSs) and gold nanostars (AuNSs).

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Background: It has been observed that 5-8% of primary bariatric procedures result in inadequate treatment response, necessitating the need for revisional surgery. In this systematic review and meta-analysis, we aim to compare the effectiveness of single anastomosis duodeno-ileal bypass (SADI) and one anastomosis gastric bypass (OAGB) in addressing weight recurrence following sleeve gastrectomy.

Methods: We systematically searched PubMed, Scopus, Web of Science, and Cochrane Central Register of Controlled Trials databases.

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Background: Diabetes has been a long-known risk factor for male sexual dysfunction, which may be caused by persistent hyperglycemia, oxidative stress, and spermatogenesis inhibition. This study explored the potential of Semaglutide (Sem) to alleviate testicular dysfunction and spermatogenesis impairment in diabetic rats to understand the molecular mechanism of this protective effect.

Methodology: A controlled experiment was conducted where 28 adult male rats were divided into four groups: control, Semaglutide, diabetic, and diabetes + Sem.

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Infective endocarditis (IE) is a serious cardiac infection of the endocardium, native and prosthetic valves, or cardiac device. In this case study, we report a case of an immunocompetent patient with severe aortic valve endocarditis. A 54-year-old female presented to the emergency department with progressive shortness of breath, chest pain, palpitations, and cough for a period of 20 days.

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Background Following evidence-based guidelines during hemodialysis catheter insertion procedures is key to lowering catheter-related bloodstream infections (CRBSI) and other complications. Our aim was to examine all aspects relevant to the insertion of hemodialysis catheters in the dialysis unit at Alexandria Main University Hospital, Alexandria, Egypt, in order to identify practices that could be contributing to high complication rates.  Methods We used the CDC's Guidelines for the Prevention of Intravascular Catheter-Related Infections to define the criteria relevant to hemodialysis catheter insertion procedures.

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Ceramides are essential lipids involved in forming complex sphingolipids and acting as signaling molecules. They result from the N-acylation of a sphingoid base and a CoA-activated fatty acid, a reaction catalyzed by the ceramide synthase (CerS) family of enzymes. Yet, the precise structural details and catalytic mechanisms of CerSs have remained elusive.

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