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Bello A, Mochel JP, Jajor P, Bobrek K, Świtała M, Poźniak B. Population Pharmacokinetics and Absolute Oral Bioavailability of Lasalocid after Single Intravenous and Intracrop Administration in Laying Hens. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:13348-13359. [PMID: 38829852 DOI: 10.1021/acs.jafc.4c01164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2024]
Abstract
Lasalocid sodium is a polyether carboxylic ionophore agent authorized by the EU for use as a coccidiostat in broilers, turkeys, and pullets up to 16 weeks of age, except for laying hens. However, laying hens are the most common nontarget species exposed to lasalocid sodium, mainly due to cross-contamination from feed mills. This exposure may result in potential drug residue deposition in eggs, which could potentially expose consumers to the drug. The breeds commonly used for commercial egg production in Poland are Isa Brown and Green-legged Partridge hens, which have been found to significantly differ in egg-laying performance. This variability may also affect the pharmacokinetics of lasalocid. Data on lasalocid plasma pharmacokinetics in laying hens are lacking. In this study, we aimed to determine typical population pharmacokinetic parameters, absolute oral bioavailability, and how breed may influence the pharmacokinetics of lasalocid. Twenty-layer hens of the two breeds were used in this study. Lasalocid was administered orally at a single dose of either 1 mg or 5 mg/kg body weight or intravenously at a dose of 1 mg/kg body weight, in a crossover design with a three-week washout period between study periods. Blood samples were collected for 72 h, and lasalocid concentrations were measured using high-performance liquid chromatography with fluorescence detection. A population pharmacokinetic analysis was conducted using nonlinear mixed effects modeling. Standard numerical and graphical criteria were used to select the best model, and a stepwise covariate modeling approach was used to determine any influencing factors. The best model was a three-compartment mammillary model with first-order absorption, transit compartments, and linear elimination. The estimated absolute oral bioavailability was low (36%). It was found that breed significantly influenced not only absorption but also the elimination of lasalocid. This study revealed that lasalocid absorption and elimination varied between the two breeds. This variability in pharmacokinetics may result in breed-related differences in drug residue accumulation in eggs, and ultimately, the risk associated with consumer exposure to drug residues may also vary.
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Affiliation(s)
- A Bello
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Wroclaw University of Environmental and Life Sciences, 50-375 Wroclaw, Poland
| | - J P Mochel
- Department of Pathology, Precision One Health, College of Veterinary Medicine, University of Georgia, Athens, Georgia 30602, United States
| | - P Jajor
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Wroclaw University of Environmental and Life Sciences, 50-375 Wroclaw, Poland
| | - K Bobrek
- Department of Epizootiology and Clinic of Bird and Exotic Animals, Wroclaw University of Environmental and Life Sciences, Wrocław 50-375, Poland
| | - M Świtała
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Wroclaw University of Environmental and Life Sciences, 50-375 Wroclaw, Poland
| | - B Poźniak
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Wroclaw University of Environmental and Life Sciences, 50-375 Wroclaw, Poland
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Petkova T, Milanova A, Poźniak B. The effects of cyclosporine A or activated charcoal co-administration on the pharmacokinetics of enrofloxacin in chickens. Poult Sci 2022; 102:102225. [PMID: 36343435 PMCID: PMC9646970 DOI: 10.1016/j.psj.2022.102225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Revised: 09/24/2022] [Accepted: 09/29/2022] [Indexed: 11/06/2022] Open
Abstract
The study aimed to investigate the possible role of efflux transporter proteins in the pharmacokinetics of enrofloxacin (ENR) in broilers in the model of co-administration of activated charcoal (AC) or cyclosporine A (CsA). The concentrations of enrofloxacin and its metabolite ciprofloxacin were analyzed by liquid chromatography-mass spectrometry (LC-MS/MS) and population approach was used for pharmacokinetic analysis. It was found that body weight has a significant effect on the volume of distribution in the central compartment and on the systemic clearance. Oral AC increased the systemic clearance of intravenously administered ENR suggesting some role of enterohepatic recirculation. For orally administered ENR, CsA increased the area under the curve which can be explained by the inhibition of efflux transporters. Metabolism of the antibacterial drug was not affected by cyclosporine. The data suggest a role of efflux transporter proteins in the pharmacokinetics of drugs in chickens and drug-drug interactions have to be considered when substrates and modulators of these transporters are co-administered.
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Affiliation(s)
- Tsvetelina Petkova
- Trakia University, Faculty of Veterinary Medicine, Department of Pharmacology, Animal Physiology, Biochemistry and Chemistry, Stara Zagora, 6000, Bulgaria
| | - Aneliya Milanova
- Trakia University, Faculty of Veterinary Medicine, Department of Pharmacology, Animal Physiology, Biochemistry and Chemistry, Stara Zagora, 6000, Bulgaria
| | - Błażej Poźniak
- Wrocław University of Environmental and Life Sciences, Faculty of Veterinary Medicine, Department of Pharmacology and Toxicology 50-375 Wrocław, Poland,Corresponding author:
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Nonlinear Mixed-Effect Pharmacokinetic Modeling and Distribution of Doxycycline in Healthy Female Donkeys after Multiple Intragastric Dosing-Preliminary Investigation. Animals (Basel) 2021; 11:ani11072047. [PMID: 34359175 PMCID: PMC8300337 DOI: 10.3390/ani11072047] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Revised: 06/22/2021] [Accepted: 07/02/2021] [Indexed: 12/27/2022] Open
Abstract
Doxycycline (DXC) is a broad-spectrum antibacterial antimicrobial administered to horses for the treatment of bacterial infections which may also affect donkeys. Donkeys have a different metabolism than horses, leading to differences in the pharmacokinetics of drugs compared to horses. This study aimed to describe the population pharmacokinetics of DXC in donkeys. Five doses of DXC hyclate (10 mg/kg) were administered via a nasogastric tube, q12 h, to eight non-fasted, healthy, adult jennies. Serum, urine, synovial fluid and endometrium were collected for 72 h following the first administration. Doxycycline concentration was measured by competitive enzyme immunoassay. Serum concentrations versus time data were fitted simultaneously using the stochastic approximation expectation-maximization algorithm for nonlinear mixed effects. A one-compartment model with linear elimination and first-order absorption after intragastric administration, best described the available pharmacokinetic data. Final parameter estimates indicate that DXC has a high volume of distribution (108 L/kg) as well as high absorption (10.3 h-1) in donkeys. However, results suggest that oral DXC at 10 mg/kg q12 h in donkeys would not result in a therapeutic concentration in serum, urine, synovial fluid or endometrium by comparison to the minimum inhibitory concentration of common equine pathogens. Further studies are recommended to identify appropriate dosage and dosing intervals of oral DXC in donkeys.
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Kittrell HC, Mochel JP, Brown JT, Forseth AMK, Hayman KP, Rajewski SM, Coetzee JF, Schneider BK, Ratliffe B, Skoland KJ, Karriker LA. Pharmacokinetics of Intravenous, Intramuscular, Oral, and Transdermal Administration of Flunixin Meglumine in Pre-wean Piglets. Front Vet Sci 2020; 7:586. [PMID: 33005646 PMCID: PMC7485418 DOI: 10.3389/fvets.2020.00586] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Accepted: 07/21/2020] [Indexed: 11/29/2022] Open
Abstract
Castration and tail-docking of pre-wean piglets are common procedures that are known to induce pain and would benefit from pain mitigation. Flunixin meglumine (FM) is a non-steroidal anti-inflammatory drug currently approved in the United States for pyrexia in swine and lameness pain in cattle. The objective of this study was to establish the pharmacokinetic (PK) parameters resulting from intravenous (IV), intramuscular (IM), oral (PO) and transdermal (TD) administration of FM in pre-wean piglets. FM was administered to thirty-nine pre-wean piglets at a target dose of 2.2 mg/kg for IV and IM and 3.3 mg/kg for PO and TD route. Plasma was collected at twenty-seven time points from 0 to 9 days after FM administration and concentrations were determined using ultra-high performance liquid chromatography coupled with mass spectrometry (UPLC-MS). Pharmacokinetic data were analyzed using noncompartmental analysis (NCA) methods and nonlinear mixed-effects (NLME). Initial plasma concentration for IV (C0) 11,653 μg/L and mean peak plasma concentrations (Cmax) 6,543 μg/L (IM), 4,883 μg/L (PO), and 31.5 μg/L (TD) were measured. The time points of peak FM concentrations (tmax) were estimated 30 min, 1 h, and 24 h for IM, PO, and TD, respectively. The bioavailability (F) of PO and IM FM was estimated at >99%, while the bioavailability of TD FM was estimated to be 7.8%. The reported Cmax of FM after IM and PO administration is consistent with therapeutic concentration ranges that mitigate pain in other species and adult pigs. However, the low estimated concentration of FM after TD dosing is not expected to mitigate pain in pre-wean piglets. The low F of TD FM suggests that expanding the surface area of application is unlikely to be sufficient to establish an effective TD dose for pain, while the high bioavailability for PO FM should allow for an effective dose regimen to be established.
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Affiliation(s)
- Heather C Kittrell
- Swine Medicine Education Center, College of Veterinary Medicine, Iowa State University, Ames, IA, United States
| | - Jonathan P Mochel
- SMART Pharmacology, Department of Biomedical Sciences, College of Veterinary Medicine, Iowa State University, Ames, IA, United States
| | - Justin T Brown
- Swine Medicine Education Center, College of Veterinary Medicine, Iowa State University, Ames, IA, United States
| | - Anna Marie K Forseth
- Animal Health Division, Montana Department of Livestock, Helena, MT, United States
| | - Kristen P Hayman
- Swine Medicine Education Center, College of Veterinary Medicine, Iowa State University, Ames, IA, United States
| | - Suzanne M Rajewski
- Analytical Chemistry Services, College of Veterinary Medicine, Iowa State University, Ames, IA, United States
| | - Johann F Coetzee
- Department of Anatomy and Physiology, College of Veterinary Medicine, Kansas State University, Manhattan, KS, United States
| | - Benjamin K Schneider
- SMART Pharmacology, Department of Biomedical Sciences, College of Veterinary Medicine, Iowa State University, Ames, IA, United States
| | - Brette Ratliffe
- Swine Medicine Education Center, College of Veterinary Medicine, Iowa State University, Ames, IA, United States
| | - Kristin J Skoland
- Swine Medicine Education Center, College of Veterinary Medicine, Iowa State University, Ames, IA, United States
| | - Locke A Karriker
- Swine Medicine Education Center, College of Veterinary Medicine, Iowa State University, Ames, IA, United States
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Yang F, Yang F, Wang H, Zhang CS, Song ZW, Shao HT, Zhang M. Pharmacokinetics of ceftiofur sodium in Peekapoo dogs following a single intravenous and subcutaneous injection. J Vet Pharmacol Ther 2020; 43:325-330. [PMID: 32281146 DOI: 10.1111/jvp.12866] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2020] [Revised: 03/24/2020] [Accepted: 03/25/2020] [Indexed: 11/29/2022]
Abstract
The present study aimed to determine the pharmacokinetic profiles of ceftiofur (as measured by ceftiofur and its active metabolites concentrations) in a small-size dog breed, Peekapoo, following a single intravenous or subcutaneous injection of ceftiofur sodium. The study population comprised of five clinically healthy Peekapoo dogs with an average body weight (BW) of 3.4 kg. Each dog received either intravenous or subcutaneous injection, both at 5 mg/kg BW (calculated as pure ceftiofur). Plasma samples were collected at different time points after the administration. Ceftiofur and its active metabolites were extracted from plasma samples, derivatized, and further quantified by high-performance liquid chromatography. The concentrations versus time data were subjected to noncompartmental analysis to obtain the pharmacokinetic parameters. The terminal half-life (t1/2 λz ) was calculated as 7.40 ± 0.79 and 7.91 ± 1.53 hr following intravenous and subcutaneous injections, respectively. After intravenous treatment, the total body clearance (Cl) and volume of distribution at steady-state (VSS ) were determined as 39.91 ± 4.04 ml hr-1 kg-1 and 345.71 ± 28.66 ml/kg, respectively. After subcutaneous injection, the peak concentration (Cmax ; 10.50 ± 0.22 μg/ml) was observed at 3.2 ± 1.1 hr, and the absorption half-life (t1/2 ka ) and absolute bioavailability (F) were calculated as 0.74 ± 0.23 hr and 91.70%±7.34%, respectively. The pharmacokinetic profiles of ceftiofur and its related metabolites demonstrated their quick and excellent absorption after subcutaneous administration, in addition to poor distribution and slow elimination in Peekapoo dogs. Based on the time of concentration above minimum inhibitory concentration (T > MIC) values calculated here, an intravenous or subcutaneous dose at 5 mg/kg of ceftiofur sodium once every 12 hr is predicted to be effective for treating canine bacteria with a MIC value of ≤4.0 μg/ml.
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Affiliation(s)
- Fang Yang
- College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, China
| | - Fan Yang
- College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, China.,Environmental and Animal Products Safety Laboratory of Key Discipline in University of Henan Province, Henan University of Science and Technology, Luoyang, China
| | - Han Wang
- College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, China
| | - Chao-Shuo Zhang
- College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, China
| | - Zhe-Wen Song
- College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, China
| | - Hao-Tian Shao
- College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, China
| | - Mei Zhang
- College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, China
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