Publications by authors named "Tarek Abdelaziz"

Background: Regenerative endodontics' primary objective is to establish a favorable environment in the root canal by removing infection, providing a sturdy scaffold, and sealing the apical end of the tooth tightly. These actions should promote pulp regeneration and root development.

Aim: This study evaluated histologically the regenerative potential of injectable hyaluronic acid (HA) hydrogel or collagen with blood clot as scaffolds during revascularization of immature necrotic dog's teeth.

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Background: Surgery is the preferred treatment for primary hyperparathyroidism. Minimally invasive parathyroidectomy is only feasible with accurate preoperative localisation. Virtual 3D anatomical models can be constructed from patient-specific CT scans using segmentation software.

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  • Primary aldosteronism (PA) is a major cause of secondary hypertension, and a study shows that unilateral adrenalectomy can effectively cure it, with findings from a 24-year period at a UK center.
  • The study analyzed data from 82 patients, focusing on biochemical, radiological, and surgical outcomes, and reported a high rate of clinical and biochemical success after surgery.
  • Results indicated that 88% of patients experienced clinical benefits and nearly all achieved biochemical cures, with these positive outcomes sustained for at least five years post-surgery.
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  • * A comprehensive review highlighted NAC's potential as an adjunct treatment for chronic diseases, including polycystic ovary syndrome, Alzheimer's, and several mental health disorders, though some evidence is less conclusive.
  • * The study emphasizes the need for further research into NAC, especially given the aging population and decreasing glutathione levels, to support its role in reducing complications related to chronic illnesses.
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Disruption of processes involved in tissue development and homeostatic self-renewal is increasingly implicated in cancer initiation, progression, and recurrence. The adrenal cortex is a dynamic tissue that undergoes life-long turnover. Here, using genetic fate mapping and murine adrenocortical carcinoma (ACC) models, we have identified a population of adrenocortical stem cells that express delta-like non-canonical Notch ligand 1 (DLK1).

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Background: Although numerous studies reported the efficacy of percutaneous epiphysiodesis using transphyseal screws (PETS) in correcting angular knee deformities, many surgeons refrained from using it in younger children because of a lack of objective evidence of reversibility. Our hypothesis is that PETS is both truly reversible and effective.

Methods: Twenty-one patients aged 8 to 13 years (36 lower limbs LL) with coronal plane knee deformity were enrolled into this prospective case series from January 2021 to September 2023.

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Background: Coronary artery spasm is among the etiology of myocardial infarction. Oxidative stress is involved in the pathogenesis of coronary artery spasm (CAS). Paraoxonase-1 (PON1) is an HDL-bound antioxidant enzyme that protects LDL from oxidative modification.

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  • Sepsis can lead to high lactate levels, which are crucial for assessing child mortality risk in severe cases.
  • The study measured lactate levels in 46 critically ill children, finding a 54.3% mortality rate, with survivors showing better lactate metrics than those who did not survive.
  • Lower lactate clearance rates were linked to higher mortality, establishing specific thresholds for predicting outcomes in the pediatric intensive care setting.
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Background: Intraoperative parathyroid hormone (PTH) monitoring is a proven and reliable adjunct to parathyroid surgery, able to improve the outcomes and efficiency of the diagnostic and therapeutic pathway for patients with primary hyperparathyroidism. This study evaluated the innovative, compact, fully automated NBCL CONNECT Analyzer, which can measure whole-blood PTH in 5 min.

Methods: A prospective multicentre study was conducted in stages: results reviews, recommendations, and implementation of improvements to the mechanical design, components of cartridges, calibration, and sampling protocols.

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Background: The role of coronary artery spasm (CAS) was extended beyond variant angina to ischemic heart disease in general, including effort angina, unstable angina, acute myocardial infarction (MI) and sudden death. It is difficult and cumbersome to examine CAS during coronary angiography. Risk factors for CAS include smoking and genetic polymorphisms.

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Leflunomide (LFND) is an immunosuppressive and immunomodulatory disease-modifying antirheumatic drug (DMARD) that was approved for treating rheumatoid arthritis. LFND-induced cardiotoxicity was not fully investigated since its approval. We investigated the cardiac injury in male mice and identified the role of nuclear factor erythroid 2-related factor 2/nuclear factor-κ B (Nrf2/NF-κB) signaling.

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  • The study investigates the relationship between BDNF levels and gene polymorphism in patients with type 2 diabetes and depression.
  • Lower BDNF levels were found in diabetic patients exhibiting depressive symptoms compared to those without, and significant differences in BDNF levels were observed across different genotypes.
  • Although the BDNF Val66Met polymorphism showed a trend towards significance in relation to depression, further multicenter studies with larger participant groups are necessary to confirm these findings.
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Despite its unequivocal superiority compared with balloon angioplasty, coronary stenting did not abolish restenosis. We aimed to evaluate the associations between a common single nucleotide polymorphism occurring in endothelial nitric oxide synthase (eNOS) and angiotensin-converting enzyme (ACE) genes and the risk of in-stent restenosis (ISR) of bare metal stents vs drug-eluting stents (BMS vs DES) implanted in Egyptian patients. Two hundred patients who had coronary stenting were divided into group I ( = 98) who received a BMS and group II ( = 102) who received a DES.

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Background: Pes anserine bursitis (PAB) is one of the most common causes of painful knee syndromes. This study aimed at examining the efficacy of local corticosteroid injection, platelet-rich plasma (PRP) injection, and extracorporeal shock wave therapy (ESWT) as different modalities to alleviate pain and enhance function in patients with pes anserine bursitis (PAB).

Methods: A prospective, randomized, comparative study was conducted on 180 patients diagnosed with chronic PAB.

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Background: Nitric oxide (NO) exerts diverse effects on the cardiovascular system. Impairment of NO production plays a key role in cerebral and coronary artery spasm. We aimed to explore the predicting factors of radial artery spasm (RAS) and the association of eNOS gene polymorphism (Glu298Asp) with RAS during cardiac catheterization.

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Nonalcoholic fatty liver disease (NAFLD) has been linked with a number of extra hepatic diseases and could be a potential risk factor of decreasing bone mineral density. To determine whether Upper Egyptian patients with NAFLD are at risk of developing osteoporosis. Cross sectional study was done on a total 100 individuals; 50 patients diagnosed with NAFLD (based on ultrasound imaging) crossed-matched with 50 individuals without NAFLD based on age, sex and body mass index.

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Background: Amelioration of proteinuria is one of main treatment targets in patients with glomerulonephritis, yet the remission rates are suboptimal.

Aim Of The Study: To examine the effect of the sodium-glucose transporter 2 inhibitor (empagliflozin) on proteinuria and kidney function progression, in patients with glomerulonephritis not due to diabetic kidney diseases.

Subjects And Methods: Fifty patients were recruited.

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  • Adrenocortical carcinomas (ACCs) are aggressive tumors that can worsen patient outcomes, especially when linked to changes in a key enzyme called SGPL1, which is involved in lipid metabolism.
  • Research showed that higher SGPL1 levels correlated with decreased patient survival and that manipulating SGPL1 expression in lab cells affected their growth and survival rates.
  • The study concluded that ACC tumors overexpressing SGPL1 thrive on metabolic resources, enhancing their growth and invasiveness, which likely contributes to poorer patient outcomes.
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Aim: We aimed to evaluate MIS-C patients' clinical manifestations, laboratory test results and mortality outcomes in an Egyptian tertiary care university hospital.

Methods: We conducted a 12 month cross-sectional study in a tertiary-care university children's hospital. All paediatric patients (1 month to 16 years old) who met the CDC criteria for MIS-C were enrolled in the study.

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Objectives: There is a lack of information regarding thiamine status in children with diabetic ketoacidosis (DKA). This study was designed to assess the thiamine status upon admission and 24 h after treatment initiation of DKA, whether newly diagnosed children or with established T1DM diagnosis, who presented with DKA.

Methods: We enrolled 90 children (mean age, 9.

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Introduction: Systemic lupus erythematosus is an autoimmune multisystem disease; renal affection is one of its most common manifestations. The effect of environmental factors on lupus nephritis flares is not fully understood.

Methods: This is a retrospective study that included 200 patients with lupus nephritis flares.

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Objective: Lupus nephritis (LN) affects almost half of all individuals with systemic lupus erythematosus (SLE). Overt LN (OLN) symptoms might vary from asymptomatic microscopic hematuria to renal failure. However, when there are no clinical or laboratory indicators of renal involvement, some people with silent LN (SLN) may have pathological evidence of renal involvement identified by renal biopsy.

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The aim of the study is to find the correlation between vitamin D level and the severity of slippage and bilateral development in slipped capital femoral epiphysis (SCFE) cases if any. Thirty-nine patients with moderate-severe stable SCFE were evaluated regarding their vitamin D level and to which extent the severity of vitamin D deficiency, if present, can be correlated with the severity and bilaterality of the slip. Vitamin D serum level was assessed pre- operatively for all patients.

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