Please use this identifier to cite or link to this item: http://hdl.handle.net/10553/43056
Title: Polymorphisms of glutathione S-transferase mu and theta, MDR1 and VEGF genes as risk factors of bladder cancer: A case-control study
Other Titles: Polymorphisms of glutathione S-transferase μ and θ, MDR1 and VEGF genes as risk factors of bladder cancer: A case-control study
Authors: Henríquez-Hernández, Luis Alberto 
Navarro, Patricio
Luzardo, Octavio P. 
Álvarez-León, Eva Elisa
Boada, Luis D. 
Zumbado, Manuel 
Pestano, Jose 
Suárez, Javier R.
Chesa, Nicolás
Almeida, Maira
Valerón, Pilar F. 
Keywords: Endothelial Growth-Factor
N-Acetyltransferase 2
Breast-Cancer
Increased Expression
Gstm1, et al
Issue Date: 2012
Publisher: 1078-1439
Journal: Urologic Oncology: Seminars and Original Investigations 
Abstract: Objective: The present study was aimed at examining the local distribution of GSTM1, GSTT1, MDR1, and VEGF gene polymorphisms as possible risk factors contributing to the development of bladder cancer among the population from Canary Islands, Spain.Materials and methods: The genotypes were determined by PCR-based methods in a hospital-based case-control study consisting of 119 cases and 110 controls. The socio-demographic and clinicopathologic data were collected, including the smoking habits of the population covered in the study.Results: The observed allelic frequencies were (%): GSTM1-GSTT1, (positive) 54 and (null) 46 in cases, and 65 and 35, respectively, in controls (P = 0.144); MDR1 C3435T, (C) 57 and (T) 43 in cases, and 54 and 46, respectively, in controls (P = 0.633); VEGF A2578C, (A) 40 and (C) 60 in cases, and 51 and 49, respectively, in controls (P = 0.221). Among Canary Islands subjects, GSTT1-null genotype appeared as a significant risk factor for bladder cancer (odds ratio (OR) 2.0; 95% confidence interval (Cl), 1.0-3.7; P = 0.041), in multivariate analysis adjusted by age and smoking habits. No statistical changes in genotype distribution of GSTM1, MDR1 C3435T, and VEGF A2578C gene polymorphisms were observed between cases and controls. The distribution of the initial clinical stage, clinical grade, or recurrence status was not significantly different among the polymorphic variants in the case group (P = NS).Conclusions: Subjects with the GSTT1-null genotype might be at an increased risk of bladder cancer in Canary Islands, Spain. However, extensive studies are required for accurate confirmation of these results. (C) 2012 Elsevier Inc. All rights reserved.
URI: http://hdl.handle.net/10553/43056
ISSN: 1078-1439
DOI: 10.1016/j.urolonc.2010.08.028
Source: Urologic Oncology-Seminars And Original Investigations[ISSN 1078-1439],v. 30 (5), p. 660-665
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