Publications by authors named "Mohamed Zaza"

Background: Complete removal of renal stones is crucial for optimal patient outcomes, but recent studies have reported residual stones after retrograde intrarenal surgery (RIRS). This study aimed to identify the associated risk factors to improve patient management and treatment selection.

Methods: This cohort study was conducted over 18 months at two hospitals and recruited adult patients with renal stones less than 3 cm.

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Objectives: We aimed to compare the efficacy and adverse events of Bacillus Calmette-Guérin (BCG) versus Mitomycin C (MMC) in high-risk Non-Muscle-Invasive Bladder Cancer (NMIBC) patients.

Methods: This randomized controlled study was conducted over 24 months in four hospitals in Egypt. A sample of 90 patients was randomly assigned to either treatment group, with procedures including baseline examinations, a single postoperative instillation of chemotherapy, a 6-week induction cycle of the assigned drug, and regular follow-up cystoscopies and upper urinary tract imaging.

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This study concerned with assessing the effect of restoring p53 using PRIMA-1 on the anti-cancer activity of olaparib against TP53-mutant triple negative breast cancer (TNBC) cells and exploring the optimum synergistic concentrations and the underlying mechanism. Human BC cell lines, MDA-MB-231 with mutated TP53 gene, and MCF-7 with wild-type TP53 gene were treated with olaparib and/or PRIMA-1. The IC value for olaparib was significantly decreased by PRIMA-1 in MDA-MB-231 cells compared to MCF-7 cells.

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Objectives: To assess the relationship between body mass index (BMI) and prostatic-specific antigen (PSA) levels, and prostate volume (PV) in men over 50 years.

Methods: This cross-sectional study was conducted at the Urology Outpatient Clinic at Badr Hospital and 15th May Hospital over a period of 6 months on 300 male patients over 50 years of age. The international prostate symptom score (IPSS) was used to evaluate the severity of lower tract urinary symptoms.

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