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ArticleMolecular biology reports2026

Angiotensin Converting Enzyme (ACE) insertion/deletion (rs1799752) gene polymorphism and bladder cancer aggressiveness in Egyptian patients: A pilot case-control study.

Nora Atia, Yasser Osman, A F Abdel-Aziz, Sherif Refaat, Mohamed R Khalil, Manar Refaat

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Article in Molecular biology reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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6 authors.

Nora AtiaBiochemistry Division, Chemistry Department, Faculty of Science, Mansoura University, Mansoura, 35516, Egypt.
Yasser OsmanUrology Department, Urology and Nephrology Center, Mansoura University, Mansoura, Egypt.
A F Abdel-AzizBiochemistry Division, Chemistry Department, Faculty of Science, Mansoura University, Mansoura, 35516, Egypt.
Sherif RefaatOncology Department, Oncology Center, Mansoura University, Mansoura, Egypt.
Mohamed R KhalilMedical Experimental Research Center (MERC), Faculty of medicine, Mansoura University, Mansoura, Egypt.
Manar RefaatBiochemistry Division, Chemistry Department, Faculty of Science, Mansoura University, Mansoura, 35516, Egypt. Manar_refaat@mans.edu.eg.

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No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundBladder cancer (BC) is one of the most frequent malignancies of the urinary tract.

objectivesThis study aimed to investigate the association between angiotensin-converting enzyme (ACE) I/D polymorphism (rs1799752) and bladder cancer risk in Egyptian patients. DESIGN AND

methodsBladder cancer cases (n = 140) were diagnosed based on cystoscopy and confirmed by histopathological examination of biopsies. Fifty sex- and age-matched healthy individuals served as controls. Peripheral blood was used to extract the genomic DNA, and the ACE I/D (rs1799752) polymorphism was genotyped using polymerase chain reaction (PCR).

resultsGenotype frequencies were comparable between groups (II:12% vs. 11.4%, ID: 76% vs. 74%, and DD: 12% vs14.3% in control and BC patients, respectively), with no significant difference in allele or genotype distributions (co-dominant model DD vs. II: OR 1.25, 95%CI 0.34-4.63, p = 0.751). However, within the patient group, the heterozygous genotype (ID) was significantly more prevalent in high grade tumors (P = 0.0177), muscle-invasive BC (MIBC, p = 0.0042), and poor prognosis cases (high grade + MIBC, P < 0.0017). The over-dominant model (ID vs. II + DD) showed a strong association with poor prognosis (OR = 4.8, 95%CI 1.96-11.78, p < 0.001). A trend toward higher ID frequency that did not reach statistical significance was observed in advanced stages (T3/T4, p = 0.058).

conclusionThe ID genotype is strongly linked to the carcinogenesis of BC and with the poor prognosis, indicating its possible role as a predictive biomarker for risk assessment and progression in this population.

Indexed as

Peptidyl-Dipeptidase AUrinary Bladder NeoplasmsAgedAllelesCase-Control StudiesEgyptFemaleGene FrequencyGenetic Predisposition to DiseaseGenotypeHumansINDEL MutationMaleMiddle AgedPilot ProjectsPolymorphism, GeneticACE protein, humanPeptidyl-Dipeptidase AACEBladder cancergenotypespolymorphismrisk factor

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.