Publications by authors named "Khedr S"

Folic acid (FA), with its anti-inflammatory and antioxidant properties, may offer protection against ischemia-reperfusion (IR) injury. This study investigated whether FA safeguards rat kidneys from IR by targeting high mobility group box-1 (HMGB1), a key inflammatory mediator. Fifty adult male Wistar rats were randomly allocated into four groups: control, IR, IR + FA pretreatment, and FA alone.

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Purpose: Research proved the beneficial effect of Zinc on human health and Gastrointestinal tract inflammatory diseases. We propose that zinc would be of value in children with Hirschsprung's disease (HD) undergoing elective pull-through surgery. This study was carried out to determine the influence of preoperative zinc intake on postoperative outcomes, especially the hospital length of stay in patients diagnosed with HD as a primary outcome.

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Over the last decade, biomedical nanomaterials have garnered significant attention due to their remarkable biological properties and diverse applications in biomedicine. Metal oxide nanoparticles (NPs) are particularly notable for their wide range of medicinal uses, including antibacterial, anticancer, biosensing, cell imaging, and drug/gene delivery. Among these, zinc oxide (ZnO) NPs stand out for their versatility and effectiveness.

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Diabetic kidney disease (DKD) is the leading cause of chronic renal pathology. Understanding the molecular underpinnings of DKD is critical to designing tailored therapeutic approaches. Here, we focused on sex differences and the contribution of aging toward the progression of DKD.

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Article Synopsis
  • c-Jun N-terminal kinases (JNKs), part of the MAPK family, are crucial for how cells react to stress and inflammation, and play a significant role in cancer development and progression.
  • Abnormal activation of JNKs can lead to tumor growth, resistance to treatments, and influences the tumor microenvironment by regulating inflammation and immune responses.
  • The review highlights both the complexity of JNK functions in cancer biology and the potential for developing targeted therapies, including promising JNK inhibitors, to enhance cancer treatment outcomes.
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Introduction: Resident interest in global surgery has increased over recent years. Incorporating short-term surgical missions (STSMs) into training improves Accreditation Council for Graduate Medical Education (ACGME) competencies and aids in understanding of global health infrastructure. We aim to investigate the impact of STSM participation during residency on the desire for participation after residency, and barriers in doing so.

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Unlabelled: Diclofenac (DF), a non-steroidal anti-inflammatory drug, is commonly used to relieve pain and inflammation. High doses of DF might induce acute kidney injury (AKI), particularly in elderly, a known vulnerable population.

Aim: We aimed to assess the protective role of melatonin (Mel) on DF-induced AKI in aged rats and to highlight the underpinning mechanisms include, oxidative stress and inflammation focusing on microRNA-34a (miR-34a), nuclear factor erythroid-2-related factor-2/hemeoxygenase-1 (Nrf2/HO-1) and NLR family-pyrin domain containing-3 (NLRP3) inflammasome pathways, and to elucidate the possibility of epithelial sodium channel (ENaC) involvement.

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Cervical spine injuries (CSIs) are heterogeneous in nature and often lead to long-term disability and morbidity. However, there are few recent and comprehensive epidemiological studies on CSI. The objective of this study was to characterize recent trends in CSI patient demographics, incidence, etiology, and injury level.

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Introduction: Currently, there is no mandatory standard for reporting race and ethnicity in medical journals, presenting significant barriers to studying disparities in medical outcomes. We seek to investigate whether greater recent awareness of diversity and inclusion reflects in reporting of race and ethnicity by peer-reviewed cardiothoracic articles.

Methods: Pubmed was queried for clinical outcomes articles published from January 2017 to June 2023 in the Journal of Thoracic and Cardiovascular Surgery, Annals of Thoracic Surgery, Journal of Heart and Lung Transplantation, and CHEST Journal.

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Background: The relationship between English proficiency (EP), Glasgow Coma Scale (GCS) and traumatic brain injury (TBI) is not well characterized. We aimed to understand the impact of limited English proficiency (LEP) on the evaluation and outcomes of TBI.

Methods: Retrospective comparative study in a single institution of patients aged ⪰65 who presented to the emergency department after a fall with head strike between January 2018 and December 2021.

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Pregnancy and the postpartum period induce physiological changes that can influence women's cognitive functions. Alzheimer's disease (AD) has a higher prevalence in women and is exacerbated by early life stress. In the present study, we found that late adolescent social isolation combined with the experience of pregnancy and delivery accelerates the onset of cognitive deficits in 5xFAD dams, particularly affecting their ability to recognize novelty.

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Purpose: Searching for a novel early diagnostic biomarker for toxoplasmosis, real-time-PCR was currently used to measure the serum mmu-miR-511-5p level in male Swiss-albino mice infected with either; ME49 or RH Toxoplasma gondii (T. gondii) strains.

Methods: Three mice groups were used; (GI) constituted the non-infected control group, while (GII) and (GIII) were experimentally infected with ME49 or RH strains, respectively.

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Introduction And Importance: Paraduodenal hernias are difficult to diagnose due to their unusual presentation. Herein, five new cases are added to the literature.

Case Presentation: Four male and one female child complained of paraduodenal hernias, two on the right side and three on the left side.

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Article Synopsis
  • The study developed the Clonal Hematopoiesis Risk Score (CHRS) to assess the risk of clonal hematopoiesis (CH) in healthy individuals, but recognized that most CH cases are diagnosed when symptoms appear.
  • Researchers examined clinical data from 94 CH patients, distinguishing between those with only DNMT3A/TET2/ASXL1 mutations ('sole DTA') and those with additional mutations ('non-sole DTA').
  • Results revealed that TET2 was the most common mutation, sole DTA patients rarely progressed to myeloid neoplasm (MN), while non-sole DTA patients had a significant progression rate, especially if they had a RUNX1 mutation, indicating higher risk
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Folic acid (FA), with its anti-inflammatory and antioxidant properties, may offer protection against ischemia-reperfusion (IR) injury. This study investigated whether FA safeguards rat kidneys from IR by targeting high mobility group box-1 (HMGB1), a key inflammatory mediator. Fifty adult male Wistar rats were randomly allocated into four groups: control, IR, IR + FA pretreatment, and FA alone.

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Background: Post-mastectomy pain syndrome (PMPS) is a persistent post-surgical neuropathic pain. Stellate ganglion (SG) block is used for diagnosis, prognosis, and treatment of pain syndrome.

Objectives: We aimed to evaluate the efficacy of SG destruction with alcohol versus thermal ablation for PMPS management.

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Article Synopsis
  • Aberrations are a critical risk factor for both myelodysplastic neoplasms (MDS) and acute myeloid leukemia (AML), leading to challenges in distinguishing between the two conditions based on blast thresholds.
  • In a study of 76 patients with aberrations, no significant genomic differences were found between MDS and AML, but overall survival was poor, particularly for certain AML subgroups.
  • Key independent risk factors for mortality identified were having AML over MDS, a complex karyotype, multihit status, and the absence of hematopoietic cell transplant (HCT), suggesting these factors should guide treatment decisions.
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The creation of innovative wound-healing nanomaterials based on natural compounds emerges as a top research goal. This research aimed to create a gel containing collagen nanoparticles and evaluate its therapeutic potential for skin lesions. Collagen nanoparticles were produced from fish scales using desolvation techniques.

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Background: It is known that nursing home patients who have sustained a previous fall are at a higher average risk for recurrent falls. Therefore, these patients require closer attention and monitoring for fall prevention.

Methods: We conducted a retrospective review in our Level 1 Trauma Center, who sustained a ground-level fall in a nursing home from January 2017 to December 2018.

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Purpose: Artificial intelligence (AI) is poised to play a major role in medical diagnostics. Periodontal disease is one of the most common oral diseases. The early diagnosis of periodontal disease is essential for effective treatment and a favorable prognosis.

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Trichinosis spiralis is a global disease with significant economic impact. Albendazole is the current-treatment. Yet, the world-widely emerging antimicrobial resistance necessitates search for therapeutic substitutes.

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Unlabelled: There is clinical evidence that increased urinary serine proteases are associated with the disease severity in the setting of diabetic nephropathy (DN). Elevation of serine proteases may mediate [Ca2+]i dynamics in podocytes through the protease-activated receptors (PARs) pathway, including associated activation of nonspecific cation channels. Cultured human podocytes and freshly isolated glomeruli were used for fluorescence and immunohistochemistry stainings, calcium imaging, Western blot analysis, scanning ion conductance microscopy, and patch clamp analysis.

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Hepatocellular carcinoma (HCC) can be produced from aflatoxin B1 (AFB1) administration. Although berberine (BER) acts as an anticancer agent and can counteract the AFB1 effect, it has low bioavailability. Nanotechnology can overcome this problem.

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Background: Inflammatory autoimmune arthritis like that present in rheumatoid arthritis (RA) is treated by medications with many side effects. This study was a trial to benefit from Toxoplasma immune-modulatory effects on its host to treat arthritis in rat model resembling joints affection of RA. To avoid hazards of infection, Toxoplasma lysate antigen (TLA) was given instead of the whole infection, in addition to giving its encapsulated niosomes form, assuming that it would enhance the effect of TLA alone, to compare effects of both on disease activity with that of prednisolone.

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Executive attention impairments are a persistent and debilitating consequence of traumatic brain injury (TBI). To make headway towards treating and predicting outcomes following heterogeneous TBI, cognitive impairment specific pathophysiology first needs to be characterized. In a prospective observational study, we measured EEG during the attention network test aimed at detecting alerting, orienting, executive attention and processing speed.

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