ArticleCureus2024
Clinicopathological Significance of Defective DNA Mismatch Repair in Endometrial Carcinoma: A Single-Center Study From Bahrain.
Article in Cureus, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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1 citing paper in PubMed.
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4 authors.
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No grant is acknowledged in the PubMed record.
Abstract
introductionEndometrial carcinoma, the most prevalent gynecologic malignancy in developed countries, represents a significant public health issue worldwide. DNA mismatch repair (dMMR) deficiency is an important molecular mechanism in endometrial carcinoma development, clinical course, and prognosis. AIMS AND
objectivesThis study aimed to determine the incidence and histological subtypes of endometrial carcinoma among Bahraini women, evaluate the prevalence of MMR deficiency using immunohistochemistry in these patients and analyze the association between MMR deficiency and clinicopathological features, including potential links to Lynch syndrome. PATIENTS AND
methodsThis single-center retrospective study included 115 endometrial carcinoma patients diagnosed between January 2020 to June 2023. Immunohistochemistry was used to assess the expression of the four main MMR proteins (MLH1, MSH2, MSH6, PMS2). Clinicopathological features and survival outcomes were compared between MMR-deficient and MMR-proficient tumors. Medical records of patients were retrieved from I-SEHA system. Statistical analysis was done using SPSS.
resultsThe study included a wide age range of patients, with a mean age of 59.5 years. The majority were Bahraini nationals. Endometrioid carcinoma was the most common histologic subtype (73%), followed by serous carcinoma (8.7%). Most patients presented with early-stage disease (76.8% stage I), and 39.8% had low-grade tumors. Significant proportions of cases showed loss of expression of mismatch repair (MMR) proteins MLH1 (24.2%), PMS2 (25%), MSH6 (14.5%), and MSH2 (12.7%), without significant associations with age. Conclusion: This study found endometrial cancer to be a significant health concern in Bahrain, with a relatively high prevalence and younger age of onset compared to global averages. The data shows a predominance of endometrioid subtype and higher-grade tumors. Notably, a substantial proportion exhibited MMR deficiency, an important biomarker. These findings suggest the need for enhanced screening, early detection, and tailored treatment approaches in Bahrain. Further research and robust national cancer registries are warranted to fully understand the underlying risk factors and guide evidence-based interventions to mitigate the burden of this disease.
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