Serum levels of 3-Epi-25-OH-D3 during Hypervitaminosis D in Clinical Practice
Journal Title: | The journal of clinical endocrinology and metabolism 2012, Vol.97 (12), p.E2266-E2270 |
Main Author: | Granado-Lorencio, F |
Other Authors: | Blanco-Navarro, I , Pérez-Sacristán, B , Donoso-Navarro, E , Silvestre-Mardomingo, R |
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Publisher: | United States: Endocrine Society |
ID: | ISSN: 0021-972X |
Link: | https://www.ncbi.nlm.nih.gov/pubmed/23038681 |
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recordid: | cdi_proquest_miscellaneous_1237508530 |
title: | Serum levels of 3-Epi-25-OH-D3 during Hypervitaminosis D in Clinical Practice |
format: | Article |
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ispartof: | The journal of clinical endocrinology and metabolism, 2012, Vol.97 (12), p.E2266-E2270 |
description: | Context: Intoxication from vitamin D supplements has been rarely reported, but nowadays, it occurs more frequently. The presence of the C-3 epimer of 25-hydroxyvitamin D3 (3-epi-25-OH-D3) is highly prevalent in adults, although there is little information regarding its in vivo relevance, if any, especially under pathological conditions. Objective: Our aim was to assess the presence of the 3-epi-25-OH-D3 in serum samples displaying 25-OH-D3 concentrations indicative of hypervitaminosis D. Design, Setting, Patients, and Main Outcome Measure: A total of 58 samples displaying a wide range of concentrations of 25-OH-D3 (>64–439 ng/ml) by ultrafast liquid chromatography were consecutively recruited and reassessed for the presence of 3-epi-25-OH-D3 using a second chromatographic system. Data from additional biochemical tests performed as part of the patient evaluation were also recorded. Results: Mean relative contribution of 3-epi-25-OH-D3 was less than 4%, and concentrations ranged from 2–28.6 ng/ml. Serum levels of the C3 epimer, but not the relative contribution, correlate with serum 25-OH-D3. Overall, in subjects with 25-OH-D3 concentrations indicative of hypervitaminosis D, the presence of the C-3 epimer and its levels were apparently unrelated to age, serum markers of renal and liver function, acute-phase reactants, and the presence of hypercalcemia. 3-Epi-25-OH-D3 did not correlate with PTH, but subjects displaying PTH suppression ( |
language: | eng |
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identifier: | ISSN: 0021-972X |
fulltext: | no_fulltext |
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url: | Link |
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