Abstract |
Tissue Cage (TC) model was used to evaluate the pharmacokinetics and ex vivo pharmacodynamics of Minocycline (MINO) after intramuscular (IM) administration to donkeys at 4 mg/kg body-weight. The Cmax of MINO with 1.79 and 2.63 μg mL-1 was obtained at 2.96 and 1.41 h in TCF ( tissue cage fluid) and plasma respectively. The absorption half-lives (t1/2ka) of MINO were calculated to be 0.71 h in TCF and 0.32 h in plasma, whereas the elimination half-lives (t1/2ke) were 10.46 h in TCF and 5.95 h in plasma. The distribution volume (Vd/F) of MINO was estimated to be 1.84 L kg-1 in TCF and 1.28 L kg-1 in plasma. The total clearance (CLb/F) of MINO was computed as 0.12 and 0.15 L/ (h·kg) in TCF and plasma respectively. The area under the concentration-time curve (AUC) of MINO was 32.77 μg mL-1h in TCF and 25.27 μg mL-1h in plasma, respectively.The ex vivo time-kill curves were established for plasma and TCF samples using Salmonella abortus equi. The MIC and MBC of MINO against salmonella were 0.08 and 0.16 μg mL-1 for plasma, 0.04 and 0.08 μg mL-1 for TCF. The plasma Cmax/MIC and AUC/MIC values after IM administration were 32.88 ± 9.87 and 315.88 ± 42.65 h, respectively. The TCF Cmax/MIC and AUC/MIC values after IM administration were 44.75 ± 9.32 and 819.25 ± 65.23 h, respectively. The values of T > MIC were approximately >36 h in plasma and > 65 h in TCF. These findings from this study suggest that MINO may be therapeutically effective in diseases of donkeys caused by salmonella when used at a dose of 4 mg/kg IM administration.
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Authors | Zaijian Li, Wenqiang Liu, Jianqing Su, Xiuling Chu, Changfa Wang |
Journal | Research in veterinary science
(Res Vet Sci)
Vol. 135
Pg. 293-296
(Mar 2021)
ISSN: 1532-2661 [Electronic] England |
PMID | 33066989
(Publication Type: Journal Article)
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Copyright | Copyright © 2020 Elsevier Ltd. All rights reserved. |
Chemical References |
- Anti-Bacterial Agents
- Minocycline
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Topics |
- Animals
- Anti-Bacterial Agents
(pharmacokinetics, pharmacology)
- Area Under Curve
- Diffusion Chambers, Culture
- Equidae
(metabolism)
- Female
- Injections, Intramuscular
(veterinary)
- Male
- Microbial Sensitivity Tests
(veterinary)
- Minocycline
(pharmacokinetics, pharmacology)
- Salmonella
(drug effects)
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