"Although calcitriol (1.25(OH)(2)D) is considered the biologically active vitamin Dmetabolite, several studies have shown that calcidiol (25OHD) is the vitamin D metabolite that is most closely linked to parathyroid function and indices of calciumhomeostasis. Moreover, low levels of 25OHD have been associated with increased risk of different diseases including cancer, diabetes, and myopathy. Cross-sectional study," scientists writing in the European Journal of Endocrinology report.
"We studied relations between plasma concentrations of 25OHD, 1.25(OH)(2)D, and parathyroid hormone (PTH) in fasting plasma samples from 315 healthy postmenopausal women randomly...
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