2005, Number 05
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Ginecol Obstet Mex 2005; 73 (05)
Breast density and its association to polimorphism of the estrogen-receptor alpha gene PvuII and Xbal
Murillo OB, Pérez LEL, Malacara JM
Language: Spanish
References: 13
Page: 229-233
PDF size: 70.66 Kb.
ABSTRACT
Objective: To study the influence of ER-α on mammographic density.
Material and methods: We selected 87 healthy women (age 49.8 ± S.D. 6.12 years). We obtained the body mass index (BMI), and a fasting blood sample for hormone determinations and DNA extraction. ER-a genotyping was carried out by PCR and digestion with a PvuII and XbaI restriction endonucleases. Mammographic density was assigned by the radiologist used three categories of fatty, average and dense.
Results: Mammographic density was significantly associated with estradiol (p=0.04), estrone (p=0.04), and FSH (p=0.02).The BMI was not associated with PvuII and XbaI genotypes and marginally with mammographic breast density (p=0.06).
Conclusions: We did not observe compelling evidence of an association between variant alleles of genotypes estrogen receptors alpha and breast density.
REFERENCES
Buchanan JB, Weisburg BF, Sandoz JP, et el. Selected prognostic variables for mammographic parenchymal patterns. Cancer 1981;47:2135-37.
Robert D, Rosenberg MD, William C, Hunt MA, et al. Effects of age, breast density, ethnicity and oestrogen replacement therapy on screening mammographic sensitivity and cancer stage at diagnosis: review of 183,134 screening mammograms in Albuquerque, New Mexico. Radiology 1998;209:511-8.
Velasco E, Malacara JM, Cervantes F, Díaz de León J, Dávalos G. Gonadotropins and prolactin serum levels during the perimenopausal period: correlation with diverse factors. Fertil Steril 1990;53:56-60.
Malacara JM. Menopausia: nuevas evidencias, nuevos enigmas. Revista de Endocrinología y Nutrición 2003;11(2):61-72.
Weel AEAM, Uitterlinden AG ,Westendorp ICD, et al. Estrogen receptor polymorphism predicts the onset of natural an surgical menopause. J Clin Endocrinol Metab 1999;84:3146-50.
Lorentzon M, Lorentzon R, Bäckstrom T, Nordström P. Estrogen receptor gene polymorphism, but not estradiol levels, is related to bone density in healthy adolescents boys: A cross sectional and longitudinal study. J Clin Endocrinol Metab 1999;84:4597-601.
Kobayashi S, Inoue S, Hosoi T, Ouchi Y, et al. Association of bone mineral density with polymorphism of the estrogen receptor gene. J Bone Miner Res 1996;11:306-11.
Haiman CHA, Bernstein L, Van Den Berg D, Ingles D, et al. Genetic determinants of mammographic density. Breast Cancer Res 2002;4:5.
Ursin G, Astrahan MA, Salane M, Parisky YR, et al. The detection of changes in mammographic densities. Cancer Epidemiol Biomarkers Prev 1998;7:43-47.
Melvin M, Grumbach RJ. Estrogen: consequences and implications of human mutations in synthesis and action. J Clin Endocrinol Metab 1999;84(12):4677-94.
Haiman CA, Hankinson SE, Colditz GA, Hunter DJ, et al. A polymorphism in CPY17 and endometrial cancer risk. Cancer Res 2001;61:3955-60.
Stavrou I, Zois C, Ioannidis JP, Tsatsoulis A. Association of polymorphisms of the oestrogen receptor alpha gene with the age of menarche. Hum Reprod 2002;17(4):1101-5.
Atkinson CH, Warren RTM, Sala V, Dowsett M, et al. Red clover-derived isoflavones and mammographic breast density: a double-blind, randomized, placebo-controlled trial [ISRCTN42940165]. Breast Cancer Research 2004;6:R170-79.