ArticleJournal of endocrinological investigation
Role of intron 5 C/T polymorphism of the calcium sensing receptor gene in the regulation of the serum FSH and LH in post-menopausal women.
Article in Journal of endocrinological investigation. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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4 authors at 1 institution in 1 country.
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Abstract
objectiveHigh extracellular calcium concentration (Cao(2+)) acts to inhibit calcium sensing receptor (CaR) signalling on cellular surfaces in parathyroid glands. This receptor is, however, also expressed on the membranes of some non-calciotropic endocrine cells, including pituitary-derived cells. The aim of our study was to analyse relationships between the CaR gene and the circulating FSH and LH in normal post-menopausal women.
methodsA total of 95 untreated euparathyroid post-menopausal women were investigated in the study. The serum FSH and LH levels were evaluated in relationship to allele combinations of the CaR gene (C/T polymorphism in the intron 5 and A986S polymorphism in exon 7), using an analysis of co-variance (ANCOVA) model.
resultsDistribution of TT, TC and CC allele combinations (intron 5 C/T polymorphism) was 51, 43 and 6 %, respectively. Higher serum FSH and LH levels were found in carriers of C allele than in women without this allele (p < 0.002 and p < 0.03, respectively). No correlations were found between A986S polymorphism and serum FSH and LH levels.
conclusionsSerum FSH and LH levels are associated with intron 5 C/T (but not A986S) polymorphism of the CaR gene in untreated post-menopausal women. The physiological role of the CaR gene in the regulation of the gonadotropic function needs to be further investigated.
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