Meyer-Binzegger, M; Ollagnier, C; Eggerschwiler, L; Bühler, K; Schlegel, P; Meylan, M. (2022). Pharmacokinetics of 1,25-dihydroxyvitamin D3 glycosides from Solanum glaucophyllum extract given in a rumen bolus on blood mineral profiles in dry pregnant dairy cows. Research in veterinary science, 142, pp. 70-77. Elsevier 10.1016/j.rvsc.2021.11.011
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Providing tablets of 1,25-dihydroxyvitamin D3 (1,25(OH)2D3), the biologically active metabolite of vitamin D3, in a rumen bolus may be used as prevention for periparturient hypocalcemia in dairy cows. This study investigated the pharmacokinetics of 1,25(OH)2D3 glycosides extracted from Solanum glaucophyllum (SGE) on blood serum 1,25(OH)2D3, Ca, P and Mg response in dry pregnant dairy cows. Boluses contained tablets of SGE which differed in their release properties (rapid release, slow release and combination) and galenics (200 μg uncoated, 300 μg and 500 μg uncoated or coated, 2 × 500 μg uncoated). Nineteen blood samples were collected from 29 cows between 96 h before and 336 h after bolus administration. Blood serum 1,25(OH)2D3, Ca and P increased between 12 h and 120 h, 12 h and 264 h and 24 h and 264 h, respectively. Highest values were reached at 30 h, 72 h and 120 h for 1,25(OH)2D3, Ca and P, respectively. Baseline values were then reached at 216 h for 1,25(OH)2D3 and 336 h for Ca and P. Concentration of Mg decreased between 24 h and 216 h, before reaching values comparable to baseline at 264 h. Highest Ca values were obtained with the combined rapid and slow release properties (500 μg) and there was no effect from coating on pharmacokinetics. In conclusion, the antepartum oral SGE bolus administration may be suitable for the prevention of periparturient hypocalcemia.
Item Type: |
Journal Article (Original Article) |
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Division/Institute: |
05 Veterinary Medicine > Department of Clinical Veterinary Medicine (DKV) 05 Veterinary Medicine > Department of Clinical Veterinary Medicine (DKV) > Clinic for Ruminants |
UniBE Contributor: |
Meylan, Mireille |
Subjects: |
500 Science 500 Science > 590 Animals (Zoology) 600 Technology > 630 Agriculture |
ISSN: |
1532-2661 |
Publisher: |
Elsevier |
Language: |
English |
Submitter: |
Nathalie Viviane Zollinger |
Date Deposited: |
23 Dec 2021 13:31 |
Last Modified: |
05 Dec 2022 15:55 |
Publisher DOI: |
10.1016/j.rvsc.2021.11.011 |
PubMed ID: |
34864460 |
Uncontrolled Keywords: |
1,25-dihydroxycholecalciferol Calcitriol Calcium Hypocalcemia Milk fever Phosphorus |
BORIS DOI: |
10.48350/161953 |
URI: |
https://boris.unibe.ch/id/eprint/161953 |
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