2009
DOI: 10.1007/s10552-009-9399-7
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Genetic polymorphisms of glutathione S-transferase genes GSTP1, GSTM1, and GSTT1 and risk of esophageal and gastric cardia cancers

Abstract: Glutathione S-transferase (GST) enzymes are known to metabolize tobacco-related carcinogens. Previous studies on the association of functional polymorphisms of GST genes with esophageal squamous cell carcinoma have yielded conflicting but overall null results. A few studies of esophageal adenocarcinoma were likewise conflicting, but the scarcity of data is striking. We aimed to study associations of the GSTM1 and GSTT1 null deletion polymorphisms as well as the GSTP1 Ile105Val polymorphism with risks for esoph… Show more

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Cited by 48 publications
(25 citation statements)
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“…The null genotypes in GSTT1 and GSTM1 were found in 49 (58.3%) and 48 (57.1%), respectively. When comparing these distributions with healthy Japanese [36][37][38] and Caucasian [39,40], frequency of XRCC1 codon 399 Arg/Arg genotype was slightly higher than that of healthy Japanese and Caucasian, and frequency of XRCC1 codon 194 Arg/Arg genotype was slightly lower than that of healthy Japanese and much lower than that of Caucasian. The frequency of GSTP1 Ile/Ile genotype was slightly lower than that of healthy Japanese and much lower than that of Caucasian.…”
Section: Resultsmentioning
confidence: 99%
See 1 more Smart Citation
“…The null genotypes in GSTT1 and GSTM1 were found in 49 (58.3%) and 48 (57.1%), respectively. When comparing these distributions with healthy Japanese [36][37][38] and Caucasian [39,40], frequency of XRCC1 codon 399 Arg/Arg genotype was slightly higher than that of healthy Japanese and Caucasian, and frequency of XRCC1 codon 194 Arg/Arg genotype was slightly lower than that of healthy Japanese and much lower than that of Caucasian. The frequency of GSTP1 Ile/Ile genotype was slightly lower than that of healthy Japanese and much lower than that of Caucasian.…”
Section: Resultsmentioning
confidence: 99%
“…Also, the same evaluation will be needed for the risk prediction of sporadic colorectal cancer. Furthermore, the distribution of polymorphisms would vary in different populations [39,40]. A study using a diverse population will also be needed to apply our result to other ethnics.…”
Section: Discussionmentioning
confidence: 98%
“…13 articles were excluded after reading the full text. Six were not Asians studies (Gonzalez et al, 2004;Martinez et al, 2006;Ruzzo et al, 2007;Wideroff et al, 2007;Zendehdel et al, 2009; Garcia-Gonzalez et al, 2012), and seven were repeating or overlapping publications (Cai et al, 1999;Setiawan et al, 2001; Gao et al, 2002b;Qian et al, 2003; Sheng et al, 2004;Nan et al, 2005b;Tripathi et al, 2008). Finally, 39 articles that report on the effects of GSTT1 polymorphisms on gastric cancer in Asia covering in total of 7,737 gastric cancer cases and 10,823 controls were remained for data extraction.…”
mentioning
confidence: 99%
“…These studies were performed in a wide range of geographical settings leading to a diversity of racial groups. Among them, 11 studies were performed in Asian countries including China (Setiawan et al, 2001;Roth et al, 2004;Mu et al, 2005;Zhang et al, 2007;Deng et al, 2011;Jiang et al, 2011;Zhang et al, 2011), Japan (Katoh et al, 1999), Vietnam (Nguyen et al, 2010), and Korea (Hong et al, 2006;Kang et al, 2008), while 9 studies were conducted in Caucasians including Sweden (Zendehdel et al, 2009), Indian (Tripathi et al, 2008;Malik et al, 2009;Yadav et al, 2010), Spain (Martinez et al, 2006), Turkey (Tamer et al, 2005), Poland (Lan et al, 2001), and USA (Wideroff et al, 2007). Genotype distribution in control groups were in HWE except for 4 studies (Katoh et al, 1999;Tamer et al, 2005;Jiang et al, 2011;Zhang et al, 2011).The detailed characteristics of the included studies were shown in the Table 1.…”
Section: Characteristics Of Studiesmentioning
confidence: 99%
“…However, these studies provided conflicting results. Some studies indicated that the GSTP1 val allele was associated with increased risk of GC (Zhang et al, 2007;Zendehdel et al, 2009;Deng et al, 2011;Jiang et al, 2011), while other studies showed no association (Wideroff et al, 2007;Kang et al, 2008;Nguyen et al, 2010;Yadav et al, 2010), and even associated with reduced risk of GC (Martinez et al, 2006). To make a more accurate estimate of the association between GSTP1 and risk of GC, we performed a metaanalysis from all eligible studies.…”
mentioning
confidence: 99%