Correlation of estrogen receptor beta gene polymorphisms with spinal bone mineral density in peri- and post-menopausal Greek women

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dc.contributor.authorEfstathiadou, Z.en
dc.contributor.authorKoukoulis, G.en
dc.contributor.authorStakias, N.en
dc.contributor.authorChalla, A.en
dc.contributor.authorZintzaras, E.en
dc.contributor.authorTsatsoulis, A.en
dc.date.accessioned2015-11-24T19:26:51Z
dc.date.available2015-11-24T19:26:51Z
dc.identifier.issn0378-5122-
dc.identifier.urihttps://olympias.lib.uoi.gr/jspui/handle/123456789/22761
dc.rightsDefault Licence-
dc.subjectAbsorptiometry, Photonen
dc.subjectBiological Markers/blood/urineen
dc.subjectBone Density/*genetics/physiologyen
dc.subjectChi-Square Distributionen
dc.subjectEstrogen Receptor beta/*genetics/physiologyen
dc.subjectFemaleen
dc.subjectGenotypeen
dc.subjectGreeceen
dc.subjectHumansen
dc.subjectMiddle Ageden
dc.subjectOsteoporosis, Postmenopausal/*geneticsen
dc.subjectPolymorphism, Single Nucleotide/*genetics/physiologyen
dc.subjectSpine/physiologyen
dc.subjectStatistics, Nonparametricen
dc.titleCorrelation of estrogen receptor beta gene polymorphisms with spinal bone mineral density in peri- and post-menopausal Greek womenen
heal.abstractEstrogens play a significant role in bone physiology. Their action is mainly exerted through their receptors. Estrogen receptor alpha (ERalpha) plays a major role in bone homeostasis and there is evidence suggesting that estrogen receptor beta (ERbeta) has also an effect on BMD. We investigated the possible effect of two ERbeta gene polymorphisms on spinal bone mineral density (BMD) and metabolic bone markers in Greek women. Spine BMD as well as biochemical bone markers were measured in 147 healthy peri- and post-menopausal women [mean age (S.D.) 54 (7.9) years]. Genotyping was performed for two restriction fragment length polymorphisms (RFLPs) of ERbeta gene, RsaI in exon 5 and AluI in exon 8. For each polymorphism studied the cohort was divided into two groups: the "wild-type" group (RR and AA, respectively) and the "carrier" group including subjects with at least one allele with the restriction site (Rr&rr and Aa&aa, respectively). The distribution of RsaI genotypes was RR: 91.2% (n = 134), Rr: 8.2% (n = 12), and rr: 0.6% (n = 1) and of AluI genotypes AA: 36.7% (n = 54), Aa: 57.2% (n = 84), and aa: 6.1% (n = 9). No linkage disequilibrium was found between the two polymorphic sites studied. Spine BMD did not differ significantly in the two groups of either polymorphism, after adjusting for age, weight, height, and years since menopause [mean BMD (S.D.) for RR 0.841 (0.17) g/cm(2) versus Rr&rr 0.798 (0.13) g/cm(2), p = 0.25, and mean BMD (S.D.) for AA 0.828 (0.16)g/cm(2) versus Aa&aa 0.848 (0.17) g/cm(2), p = 0.32]. No significant differences were noted in metabolic bone markers except for a marginal difference of RR versus Rr/rr in urinary hydroxyproline/creatinine ratio [median (IQR) 3.88 (6.04) micromol/mmol in RR versus 8.2 (4.32) micromol/mmol in Rr/rr, p = 0.05]. Furthermore, no interaction between the two polymorphisms on BMD was found. In conclusion, in a Greek female post-menopausal population, the two ERbeta gene polymorphisms were not associated with BMD, or metabolic bone markers.en
heal.accesscampus-
heal.fullTextAvailabilityTRUE-
heal.identifier.primary10.1016/j.maturitas.2005.07.005-
heal.identifier.secondaryhttp://www.ncbi.nlm.nih.gov/pubmed/16125346-
heal.identifier.secondaryhttp://ac.els-cdn.com/S0378512205001830/1-s2.0-S0378512205001830-main.pdf?_tid=4252114a9166f45612cbcbb9b2f8359d&acdnat=1332919404_386698db5208d526f78dd775f27919a6-
heal.journalNameMaturitasen
heal.journalTypepeer-reviewed-
heal.languageen-
heal.publicationDate2006-
heal.recordProviderΠανεπιστήμιο Ιωαννίνων. Σχολή Επιστημών Υγείας. Τμήμα Ιατρικήςel
heal.typejournalArticle-
heal.type.elΆρθρο Περιοδικούel
heal.type.enJournal articleen

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