Prevalence of the STK15 F31I polymorphism and its relationship with mammographic density
Several studies have identified the single nucleotide polymorphism STK15 F31I as a low-penetrance risk allele for breast cancer, but its prevalence and risk association in the Brazilian population have not been determined. The goal of this study was to identify the frequency of this polymorphism in...
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| Format: | Article |
| Language: | English |
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Associação Brasileira de Divulgação Científica
2011-04-01
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| Series: | Brazilian Journal of Medical and Biological Research |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2011000400004 |
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| author | J. Giacomazzi E. Aguiar E.I. Palmero A.V. Schmidt G. Skonieski D. Duarte Filho H. Bock M.L. Saraiva-Pereira L. Schuler-Faccini S.A. Camey M. Caleffi R. Giugliani P. Ashton-Prolla |
| author_facet | J. Giacomazzi E. Aguiar E.I. Palmero A.V. Schmidt G. Skonieski D. Duarte Filho H. Bock M.L. Saraiva-Pereira L. Schuler-Faccini S.A. Camey M. Caleffi R. Giugliani P. Ashton-Prolla |
| author_sort | J. Giacomazzi |
| collection | DOAJ |
| description | Several studies have identified the single nucleotide polymorphism STK15 F31I as a low-penetrance risk allele for breast cancer, but its prevalence and risk association in the Brazilian population have not been determined. The goal of this study was to identify the frequency of this polymorphism in the Brazilian setting. Considering the high degree of admixture of our population, it is of fundamental importance to validate the results already reported in the literature and also to verify the relationship between this variant and breast cancer risk. A total of 750 women without breast cancer were genotyped using the TaqMan PCR assay for STK15 F31I polymorphism. Clinical information was obtained from review of the medical records and mammographic density from the images obtained using the BI-RADS System. The estimated risk of developing cancer was calculated according to the Gail model. The genotypic frequencies observed in this study were 4.5, 38.7, and 56.6%, respectively, for the STK15 F31I AA, AT and TT genotypes. The AT and AA genotypes were encountered significantly more often in premenopausal women with moderately dense, dense and heterogeneously dense breast tissue (P = 0.023). In addition, the presence of the TT genotype was significantly associated with age at menarche ≥12 years (P = 0.023). High mammographic density, associated with increased breast cancer risk, was encountered more frequently in premenopausal women with the risk genotypes STK15 F31I AA and AT. The genotypic frequencies observed in our Brazilian sample were similar to those described in other predominantly European populations. |
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| format | Article |
| id | doaj.art-10c2f3da1b324f68b7566fcdfa8c12cc |
| institution | Directory Open Access Journal |
| issn | 0100-879X 1414-431X |
| language | English |
| last_indexed | 2024-12-24T13:08:34Z |
| publishDate | 2011-04-01 |
| publisher | Associação Brasileira de Divulgação Científica |
| record_format | Article |
| series | Brazilian Journal of Medical and Biological Research |
| spelling | doaj.art-10c2f3da1b324f68b7566fcdfa8c12cc2022-12-21T16:53:56ZengAssociação Brasileira de Divulgação CientíficaBrazilian Journal of Medical and Biological Research0100-879X1414-431X2011-04-01444291296Prevalence of the STK15 F31I polymorphism and its relationship with mammographic densityJ. GiacomazziE. AguiarE.I. PalmeroA.V. SchmidtG. SkonieskiD. Duarte FilhoH. BockM.L. Saraiva-PereiraL. Schuler-FacciniS.A. CameyM. CaleffiR. GiuglianiP. Ashton-ProllaSeveral studies have identified the single nucleotide polymorphism STK15 F31I as a low-penetrance risk allele for breast cancer, but its prevalence and risk association in the Brazilian population have not been determined. The goal of this study was to identify the frequency of this polymorphism in the Brazilian setting. Considering the high degree of admixture of our population, it is of fundamental importance to validate the results already reported in the literature and also to verify the relationship between this variant and breast cancer risk. A total of 750 women without breast cancer were genotyped using the TaqMan PCR assay for STK15 F31I polymorphism. Clinical information was obtained from review of the medical records and mammographic density from the images obtained using the BI-RADS System. The estimated risk of developing cancer was calculated according to the Gail model. The genotypic frequencies observed in this study were 4.5, 38.7, and 56.6%, respectively, for the STK15 F31I AA, AT and TT genotypes. The AT and AA genotypes were encountered significantly more often in premenopausal women with moderately dense, dense and heterogeneously dense breast tissue (P = 0.023). In addition, the presence of the TT genotype was significantly associated with age at menarche ≥12 years (P = 0.023). High mammographic density, associated with increased breast cancer risk, was encountered more frequently in premenopausal women with the risk genotypes STK15 F31I AA and AT. The genotypic frequencies observed in our Brazilian sample were similar to those described in other predominantly European populations.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2011000400004STK15 F31I polymorphismBreast cancer riskMammographic density |
| spellingShingle | J. Giacomazzi E. Aguiar E.I. Palmero A.V. Schmidt G. Skonieski D. Duarte Filho H. Bock M.L. Saraiva-Pereira L. Schuler-Faccini S.A. Camey M. Caleffi R. Giugliani P. Ashton-Prolla Prevalence of the STK15 F31I polymorphism and its relationship with mammographic density Brazilian Journal of Medical and Biological Research STK15 F31I polymorphism Breast cancer risk Mammographic density |
| title | Prevalence of the STK15 F31I polymorphism and its relationship with mammographic density |
| title_full | Prevalence of the STK15 F31I polymorphism and its relationship with mammographic density |
| title_fullStr | Prevalence of the STK15 F31I polymorphism and its relationship with mammographic density |
| title_full_unstemmed | Prevalence of the STK15 F31I polymorphism and its relationship with mammographic density |
| title_short | Prevalence of the STK15 F31I polymorphism and its relationship with mammographic density |
| title_sort | prevalence of the stk15 f31i polymorphism and its relationship with mammographic density |
| topic | STK15 F31I polymorphism Breast cancer risk Mammographic density |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2011000400004 |
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