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Effects of surgery on free and total 25 hydroxyvitamin D concentrations in dogs

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    Rights statement: This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. © 2020 The Authors. Journal of Veterinary Internal Medicine published by Wiley Periodicals LLC on behalf of American College of Veterinary Internal Medicine.

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    Licence: Creative Commons: Attribution (CC-BY)

Original languageEnglish
Pages (from-to)2617- 2621
JournalJournal of Veterinary Internal Medicine
Volume34
Issue number6
Early online date14 Oct 2020
DOIs
Publication statusE-pub ahead of print - 14 Oct 2020

Abstract

BACKGROUND: It is unclear whether a low total 25(OH)D concentration is a cause or consequence of illnesses. To address this knowledge gap, studies measuring free and total 25(OH)D during the evolution and resolution of an inflammatory process are required.

OBJECTIVES: Serum total and free 25(OH)D concentrations would transiently decline after cruciate surgery in dogs.

ANIMALS: Seventeen client-owned dogs with a spontaneous cranial cruciate ligament rupture (CCLR).

METHODS: A longitudinal cohort study involving the measurement of serum concentrations of total and free 25(OH)D, total calcium, creatinine, albumin, phosphate, C-reactive protein and plasma ionized calcium, at 1 day before and a median time of 1 and 60 days after surgical treatment of CCLR.

RESULTS: Median serum concentrations of total 25(OH)D before surgery (80.3 nmoL/L [range, 43.5-137.3]) significantly declined immediately after surgery; (64.8 nmoL/L [range, 36.3-116.5] 1 day after surgery, P < .005) before increasing to become nonsignificantly different from concentrations before surgery at day 60 after surgery (median 78.0 nmoL/L [range, 24.2-115.8], P = .14). In contrast, median free 25(OH)D concentrations before surgery (7.6 pg/mL [range, 3.8-12.2]) significantly increased immediately after surgery (9.2 pg/mL [range, 5.2-15.7], P < .05) before declining to become nonsignificantly different from before surgery concentrations at day 60 after surgery (median 6.2 pg/mL [range, 4.0-15.8], P = .37).

CONCLUSION AND CLINICAL IMPORTANCE: This study reveals the difficulties of assessing vitamin D status in dogs following elective surgery.

    Research areas

  • 25 hydroxyvitamin D, cruciate rupture, dog, inflammation, vitamin D

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