1
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Li SC, Zhang M, Wang B, Li XT, Liang G. Coptisine Modulates the Pharmacokinetics of Florfenicol by targeting CYP1A2, CYP2C11 and CYP3A1 in the Liver and P-gp in the Jejunum of Rats: A Pilot Study. Xenobiotica 2023:1-8. [PMID: 37144948 DOI: 10.1080/00498254.2023.2211135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
1. Coptisine (COP) is the main active ingredient of Coptis chinensis. In Chinese veterinary clinics, Coptis chinensis is commonly used alongside florfenicol to treat intestinal infections. The goal of this study was to investigate the impact of COP co-administration on the pharmacokinetics of florfenicol in rats.2. Male Sprague-Dawley rats were orally administered COP (50 mg/kg BW) or sterile water for 7 consecutive days, followed by a single oral dose of florfenicol (25 mg/kg BW) on the 8th day. Pharmacokinetics of florfenicol were analyzed using non-compartmental methods, while expression levels of cytochrome P450 (CYP) isoforms in the liver and P-glycoprotein (P-gp) in the jejunum were measured using real-time RT-PCR, Western blot and immunohistochemical analyses.3. Co-administration of COP and florfenicol significantly increased AUC(0-∞), MRT(0-∞), and Cmax of florfenicol, while CLz/F was significantly decreased. COP down-regulated the expression of CYP1A2, CYP2C11, and CYP3A1 in the liver, as well as P-gp in the jejunum.4. These findings suggest that co-administration of COP with florfenicol alters the pharmacokinetics of florfenicol in rats. The down-regulation of CYP and P-gp expression may contribute to this effect. Therefore, the co-administration of COP with florfenicol may enhance the prophylactic or therapeutic efficacy of florfenicol in veterinary practice.
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Affiliation(s)
- Si-Cong Li
- Sichuan Key Laboratory of Animal Genetics and Breeding, Sichuan Animal Science Academy, Chengdu, China
- Veterinary Natural Medicine Research and GCP Experimental Animal Centre, Lezhi, China
| | - Min Zhang
- Sichuan Key Laboratory of Animal Genetics and Breeding, Sichuan Animal Science Academy, Chengdu, China
- Veterinary Natural Medicine Research and GCP Experimental Animal Centre, Lezhi, China
| | - Bin Wang
- Sichuan Key Laboratory of Animal Genetics and Breeding, Sichuan Animal Science Academy, Chengdu, China
- Veterinary Natural Medicine Research and GCP Experimental Animal Centre, Lezhi, China
| | - Xu-Ting Li
- Sichuan Key Laboratory of Animal Genetics and Breeding, Sichuan Animal Science Academy, Chengdu, China
- Veterinary Natural Medicine Research and GCP Experimental Animal Centre, Lezhi, China
| | - Ge Liang
- Sichuan Key Laboratory of Animal Genetics and Breeding, Sichuan Animal Science Academy, Chengdu, China
- Veterinary Natural Medicine Research and GCP Experimental Animal Centre, Lezhi, China
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2
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Zhang M, Wang B, Li XT, Yin Q, Liang G, Li SC. Impact of tectoridin on the pharmacokinetics of florfenicol via targeting cytochrome P450 and P-glycoprotein of rats. Xenobiotica 2023; 53:429-437. [PMID: 37781957 DOI: 10.1080/00498254.2023.2261040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Accepted: 09/16/2023] [Indexed: 10/03/2023]
Abstract
Belamcanda chinensis (L.) DC, commonly used with florfenicol in Chinese veterinary clinics for respiratory tract infections, contains the major effective isoflavone, tectoridin (TEC). This study aimed to investigate the impact of TEC co-administration on the pharmacokinetics of florfenicol in vivo.Male rats received oral TEC (50 mg/kg BW) or sterile water for seven days, followed by a single oral dose of florfenicol (25 mg/kg BW) on the 8th day. Non-compartmental methods analysed the pharmacokinetics of florfenicol, while real-time reverse transcription polymerase chain reaction (RT-PCR), Western blot, and immunohistochemical analyses measured expression levels of cytochrome P450 (CYP) isoforms in the liver and P-glycoprotein (P-gp) in the jejunum.TEC significantly decreased florfenicol's AUC(0-∞), MRT(0-∞), t1/2z, Vz/F, and Cmax by 24.75%, 18.43%, 55.47%, 43.05%, and 19.48%, while increasing CLz/F by 33.33%. TEC also up-regulated hepatic CYP1A2 and CYP3A1 mRNA expression, as well as intestinal MDR1, by 1.39-fold, 1.85-fold, and 1.65-fold. This coincided with a respective increase in protein expression by 1.37-fold, 1.39-fold, and 1.43-fold.These findings suggest that TEC-induced alterations in the pharmacokinetics of florfenicol may be attributed to increased CYP and P-gp expression. Further investigations are warranted to understand the implications of these findings on the clinical effectiveness of florfenicol in veterinary practice.
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Affiliation(s)
- Min Zhang
- Sichuan Key Laboratory of Animal Genetics and Breeding, Sichuan Animal Science Academy, Chengdu, China
- Veterinary Natural Medicine Research and GCP Experimental Animal Centre, Lezhi, China
| | - Bin Wang
- Sichuan Key Laboratory of Animal Genetics and Breeding, Sichuan Animal Science Academy, Chengdu, China
- Veterinary Natural Medicine Research and GCP Experimental Animal Centre, Lezhi, China
| | - Xu-Ting Li
- Sichuan Key Laboratory of Animal Genetics and Breeding, Sichuan Animal Science Academy, Chengdu, China
- Veterinary Natural Medicine Research and GCP Experimental Animal Centre, Lezhi, China
| | - Qin Yin
- Sichuan Key Laboratory of Animal Genetics and Breeding, Sichuan Animal Science Academy, Chengdu, China
| | - Ge Liang
- Sichuan Key Laboratory of Animal Genetics and Breeding, Sichuan Animal Science Academy, Chengdu, China
- Veterinary Natural Medicine Research and GCP Experimental Animal Centre, Lezhi, China
| | - Si-Cong Li
- Sichuan Key Laboratory of Animal Genetics and Breeding, Sichuan Animal Science Academy, Chengdu, China
- Veterinary Natural Medicine Research and GCP Experimental Animal Centre, Lezhi, China
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3
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Xu X, Liu Y, Guo M, Martínez MA, Ares I, Lopez-Torres B, Martínez-Larrañaga MR, Wang X, Anadón A, Martínez M. The "steric-like" inhibitory effect and mechanism of doxycycline on florfenicol metabolism: Interaction risk. Food Chem Toxicol 2022; 169:113431. [PMID: 36116547 DOI: 10.1016/j.fct.2022.113431] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 09/07/2022] [Accepted: 09/10/2022] [Indexed: 10/31/2022]
Abstract
Most of the studies on doxycycline (DOX) and florfenicol (FF) remain focused on the improvement of antimicrobial activity and antimicrobial spectrum, and there is no relevant report on whether there is interaction between the two drugs after the combination. This research study evaluated the effect of DOX on FF metabolism in vitro and its mechanisms. The findings of this study showed that DOX inhibits FF metabolism in two ways. Firstly, DOX significantly inhibits the expression of CYP3A29, leading to the slower metabolism of FF; secondly, DOX affects the binding of FF to R106 and R372 by competing for the R372 and/or by a "steric-like effect", thus slowing down FF metabolism, which may increase the residual concentration of FF in edible tissues of food producing animals.
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Affiliation(s)
- Xiaoqing Xu
- National Reference Laboratory of Veterinary Drug Residues (HZAU) and MAO Key Laboratory for Detection of Veterinary Drug Residues, Huazhong Agricultural University, Wuhan, Hubei, 430070, China; MAO Laboratory for Risk Assessment of Quality and Safety of Livestock and Poultry Products, Huazhong Agricultural University, Wuhan, Hubei, 430070, China
| | - Yanan Liu
- The State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, Hubei, 430070, China
| | - Mingyue Guo
- The State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, Hubei, 430070, China
| | - María-Aránzazu Martínez
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Universidad Complutense de Madrid, 28040, Madrid, Spain
| | - Irma Ares
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Universidad Complutense de Madrid, 28040, Madrid, Spain
| | - Bernardo Lopez-Torres
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Universidad Complutense de Madrid, 28040, Madrid, Spain
| | - María-Rosa Martínez-Larrañaga
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Universidad Complutense de Madrid, 28040, Madrid, Spain
| | - Xu Wang
- National Reference Laboratory of Veterinary Drug Residues (HZAU) and MAO Key Laboratory for Detection of Veterinary Drug Residues, Huazhong Agricultural University, Wuhan, Hubei, 430070, China; MAO Laboratory for Risk Assessment of Quality and Safety of Livestock and Poultry Products, Huazhong Agricultural University, Wuhan, Hubei, 430070, China.
| | - Arturo Anadón
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Universidad Complutense de Madrid, 28040, Madrid, Spain.
| | - Marta Martínez
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Universidad Complutense de Madrid, 28040, Madrid, Spain
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4
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Rairat T, Liu YK, Hsu JCN, Hsieh CY, Chuchird N, Chou CC. Combined Effects of Temperature and Salinity on the Pharmacokinetics of Florfenicol in Nile Tilapia (Oreochromis niloticus) Reared in Brackish Water. Front Vet Sci 2022; 9:826586. [PMID: 35300219 PMCID: PMC8921477 DOI: 10.3389/fvets.2022.826586] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Accepted: 01/17/2022] [Indexed: 11/20/2022] Open
Abstract
Prudent antimicrobial use requires knowledge of pharmacokinetics (PK) in a specific fish species which in turn depends on water temperature and salinity. Although the influence of each individual factor is known, the combined effect is less clear. The objective of the current study was to investigate the effect of temperature and salinity concurrently on the PK of florfenicol (FF) in Nile tilapia reared in brackish water. Twenty-eight fish were divided into four groups and kept at one of two temperatures (24 vs. 32°C) and two salinity levels (5 vs. 15 ppt). The FF was administered at a single dose of 15 mg/kg body weight via oral gavage. The serum concentrations were analyzed by HPLC method and the PK parameters were analyzed by a 2-compartmental model. The result revealed that at 32°C, the elimination half-lives (t1/2β), time to reach the peak concentration (Tmax), area under the serum concentration-time curve (AUC), and mean residence time (MRT) were significantly decreased, while the clearance relative to bioavailability (CL/F) significantly increased compared to those at 24°C. The extents of these PK changes were similar at the two salinity levels. On the contrary, increasing the salinity from 5 to 15 ppt at a given temperature level produced no significant change in the PK behavior. Our finding indicated that only water temperature, but not salinity, is the major determinant factor governing the FF fate in the fish body.
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Affiliation(s)
- Tirawat Rairat
- Department of Fishery Biology, Faculty of Fisheries, Kasetsart University, Bangkok, Thailand
| | - Yi-Kai Liu
- Department of Veterinary Medicine, College of Veterinary Medicine, National Chung Hsing University, Taichung, Taiwan
| | - Julia Chu-Nin Hsu
- Department of Veterinary Medicine, College of Veterinary Medicine, National Chung Hsing University, Taichung, Taiwan
| | - Chia-Yu Hsieh
- Department of Veterinary Medicine, College of Veterinary Medicine, National Chung Hsing University, Taichung, Taiwan
| | - Niti Chuchird
- Department of Fishery Biology, Faculty of Fisheries, Kasetsart University, Bangkok, Thailand
| | - Chi-Chung Chou
- Department of Veterinary Medicine, College of Veterinary Medicine, National Chung Hsing University, Taichung, Taiwan
- Department and Graduate Institute of Pharmacology, National Defense Medical Center, Taipei, Taiwan
- *Correspondence: Chi-Chung Chou
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5
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Li S, Wang B, Zhang M, Yuan D, Li J, Li X, Liang G. Effects of berberine on the pharmacokinetics of florfenicol and levels of cytochrome P450 3A37, multidrug resistance 1, and chicken xenobiotic-sensing orphan nuclear receptor mRNA expression in broilers. Vet Med Sci 2021; 8:619-625. [PMID: 34766459 PMCID: PMC8959326 DOI: 10.1002/vms3.660] [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] [Indexed: 11/06/2022] Open
Abstract
BACKGROUND Berberine (BBR) is always used in combination with florfenicol for treating avian in China. OBJECTIVE This study aims to investigate the effects of BBR on the pharmacokinetics of florfenicol in broilers. METHODS Male broilers were randomly divided into the control group and the BBR group (BG). Note that 50 mg/kg BBR or sterile water was orally administrated to broilers. On the 8th day, florfenicol [30 mg/kg body weight (BW)] was orally administered to broilers in both groups. The plasma concentrations of florfenicol were determined by ultra-high-performance liquid chromatography (UHPLC). The levels of cytochrome P450 (CYP) 3A37, multidrug resistance 1 (MDR1), and chicken xenobiotic-sensing orphan nuclear receptor (CXR) mRNA expression in the liver and jejunum were determined by the real-time PCR. RESULTS The results showed that the Cmax , t1/2z , MRT(0-∞) , and AUC(0-∞) of florfenicol in BG were significantly increased (by 55.71%, 28.32%, 35.19%, and 55.62%, respectively), while the Tmax and CLz/F of florfenicol were significantly decreased (by 52.13% and 35.82%, respectively). In BG, the levels of CYP3A37, MDR1, and CXR mRNA expression in the liver were significantly decreased to 0.72-fold, 0.67-fold, and 0.59-fold, respectively, and the corresponding mRNA expression in the jejunum were significantly decreased to 0.66-fold, 0.55-fold, and 0.64-fold levels, respectively, relative to their levels in the control group. CONCLUSIONS BBR altered the pharmacokinetics of florfenicol, probably related to its inhibition of CYP3A37, MDR1, and CXR mRNA expression in the jejunum and liver.
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Affiliation(s)
- Sicong Li
- Sichuan Animal Science Academy, Chengdu, P. R. China.,Animal Breeding and Genetics Key Laboratory of Sichuan Province, Chengdu, P. R. China
| | - Bin Wang
- Sichuan Animal Science Academy, Chengdu, P. R. China.,Animal Breeding and Genetics Key Laboratory of Sichuan Province, Chengdu, P. R. China
| | - Min Zhang
- Sichuan Animal Science Academy, Chengdu, P. R. China.,Animal Breeding and Genetics Key Laboratory of Sichuan Province, Chengdu, P. R. China
| | - Dingsheng Yuan
- Sichuan Animal Science Academy, Chengdu, P. R. China.,Animal Breeding and Genetics Key Laboratory of Sichuan Province, Chengdu, P. R. China
| | - Jinliang Li
- Sichuan Dingjian Animal Pharmaceutical Co., Ltd., Chengdu, P. R. China
| | - Xuting Li
- Sichuan Animal Science Academy, Chengdu, P. R. China.,Animal Breeding and Genetics Key Laboratory of Sichuan Province, Chengdu, P. R. China
| | - Ge Liang
- Sichuan Animal Science Academy, Chengdu, P. R. China.,Animal Breeding and Genetics Key Laboratory of Sichuan Province, Chengdu, P. R. China
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6
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Wang X, Yang Y, Martínez MA, Martínez M, Lopez-Torres B, Martínez-Larrañaga MR, Wang X, Anadón A, Ares I. Interaction Between Florfenicol and Doxycycline Involving Cytochrome P450 3A in Goats ( Capra hricus). Front Vet Sci 2021; 8:759716. [PMID: 34733909 PMCID: PMC8558239 DOI: 10.3389/fvets.2021.759716] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Accepted: 09/21/2021] [Indexed: 01/18/2023] Open
Abstract
When two drugs are combined, drug-drug interactions (DDI) often occur. Metabolic DDI usually occur due to inhibition of the metabolism of one drug by the other. This leads to an increase in the plasma concentration of the drug whose metabolism is inhibited. The objective of this research study was to verify the DDI risk of two antibacterial, florfenicol (FF) and doxycycline (DOX) due to metabolism. Because food containing residues of any pharmacologically active substance could potentially constitute a public health hazard, we selected a food producing animal, goat, goat liver microsomes and recombinant metabolic enzymes, for in vivo and in vitro metabolism studies. In vitro experiments showed that CYP3A was the key enzyme subfamily in FF metabolism, DOX slowed down FF metabolism and R440 was possibly the key amino acid in the metabolic interaction between FF and DOX. In vivo studies in the goats showed that DOX inhibited up-regulation of CYP3A24 gene expression produced by FF; in liver and kidney, DOX slightly slowed down FF metabolism. Quantitative prediction of DDI risk suggest that when DOX is used in combination with FF in veterinary medicine, may result in a clinical significant increase of FF plasma and tissue concentrations, resulting a prevalence of harmful tissue residues of medicinal products in the food chain. Through our experimentation, when DOX is used in combination with FF, the withdrawal period of FF in the kidney was extended by 1 day. Otherwise, an appropriate withdrawal period (20 days) of FF was established for FF and DOX combined use to ensure that the animal can be safely slaughtered for food.
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Affiliation(s)
- Xiaojing Wang
- National Reference Laboratory of Veterinary Drug Residues (HZAU) and MAO Key Laboratory for Detection of Veterinary Drug Residues, Huazhong Agricultural University, Wuhan, China
| | - Yaqin Yang
- MOA Laboratory for Risk Assessment of Quality and Safety of Livestock and Poultry Products, Wuhan, China
| | - María-Aránzazu Martínez
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Universidad Complutense de Madrid, Madrid, Spain
| | - Marta Martínez
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Universidad Complutense de Madrid, Madrid, Spain
| | - Bernardo Lopez-Torres
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Universidad Complutense de Madrid, Madrid, Spain
| | - María-Rosa Martínez-Larrañaga
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Universidad Complutense de Madrid, Madrid, Spain
| | - Xu Wang
- National Reference Laboratory of Veterinary Drug Residues (HZAU) and MAO Key Laboratory for Detection of Veterinary Drug Residues, Huazhong Agricultural University, Wuhan, China.,MOA Laboratory for Risk Assessment of Quality and Safety of Livestock and Poultry Products, Wuhan, China
| | - Arturo Anadón
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Universidad Complutense de Madrid, Madrid, Spain
| | - Irma Ares
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Universidad Complutense de Madrid, Madrid, Spain
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7
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Li X, Li S, Wang B, Zhang M, Yuan D, Li J, Liang G. Borneol influences the pharmacokinetics of florfenicol through regulation of cytochrome P450 1A2 (CYP1A2), CYP2C11, CYP3A1, and multidrug resistance 1 (MDR1) mRNA expression levels in rats. J Vet Med Sci 2021; 83:1338-1344. [PMID: 34176823 PMCID: PMC8437715 DOI: 10.1292/jvms.20-0641] [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] [Indexed: 12/03/2022] Open
Abstract
Borneol is a traditional Chinese medicine. In Chinese veterinary clinics, borneol and its
related compounds are often used in combination with florfenicol to treat respiratory
infections. This study investigated whether the pharmacokinetics of florfenicol in rats
was affected by its concomitant use with borneol. Sprague-Dawley rats were
intragastrically administered borneol (50 mg/kg body weight (BW)) or 0.5%
carboxymethyl-cellulose sodium for 7 consecutive days, and then intragastrically
administered florfenicol (25 mg/kg BW) on the eighth day. Pharmacokinetic studies showed
that borneol significantly decreased the area under the concentration-time curve from zero
to infinity (AUC(0-t)), time to reach peak concentration (Tmax), and
the peak concentration (Cmax) values of florfenicol, whereas the values of mean
residence time from zero to infinity (MRT(0-t)), elimination half-life
(t1/2z), apparent volume of distribution fraction of the dose absorbed (Vz),
and plasma clearance fraction of the dose absorbed (CLz) were increased significantly.
Furthermore, the mRNA expression levels of multidrug resistance 1 (MDR1) and cytochrome
P450 3A1 (CYP3A1) in the jejunum and of CYP1A2 and CYP2C11 in the liver were significantly
upregulated by borneol. In conclusion, borneol decreased absorption, increased clearance,
improved distribution, and increased the mean residence time of florfenicol in rats,
possibly through regulating the mRNA expression levels of drug-metabolizing enzymes and
efflux transporters.
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Affiliation(s)
- Xuting Li
- Sichuan Animal Science Academy, 7 Niusha Road, Jinjiang, Chengdu 610066, PR China.,Animal Breeding and Genetics Key Laboratory of Sichuan Province, 7 Niusha Road, Jinjiang, Chengdu 610066, PR China
| | - Sicong Li
- Sichuan Animal Science Academy, 7 Niusha Road, Jinjiang, Chengdu 610066, PR China.,Animal Breeding and Genetics Key Laboratory of Sichuan Province, 7 Niusha Road, Jinjiang, Chengdu 610066, PR China
| | - Bin Wang
- Sichuan Animal Science Academy, 7 Niusha Road, Jinjiang, Chengdu 610066, PR China.,Animal Breeding and Genetics Key Laboratory of Sichuan Province, 7 Niusha Road, Jinjiang, Chengdu 610066, PR China
| | - Min Zhang
- Sichuan Animal Science Academy, 7 Niusha Road, Jinjiang, Chengdu 610066, PR China.,Animal Breeding and Genetics Key Laboratory of Sichuan Province, 7 Niusha Road, Jinjiang, Chengdu 610066, PR China
| | - Dingsheng Yuan
- Sichuan Animal Science Academy, 7 Niusha Road, Jinjiang, Chengdu 610066, PR China.,Animal Breeding and Genetics Key Laboratory of Sichuan Province, 7 Niusha Road, Jinjiang, Chengdu 610066, PR China
| | - Jinliang Li
- Sichuan Dingjian Animal Pharmaceutical Co., Ltd., 19 7th East Road, Checheng, Longquanyi, Chengdu 610100, PR China
| | - Ge Liang
- Sichuan Animal Science Academy, 7 Niusha Road, Jinjiang, Chengdu 610066, PR China.,Animal Breeding and Genetics Key Laboratory of Sichuan Province, 7 Niusha Road, Jinjiang, Chengdu 610066, PR China
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8
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Elgeddawy SA, Shaheen HM, El-Sayed YS, Abd Elaziz M, Darwish A, Samak D, Batiha GE, Mady RA, Bin-Jumah M, Allam AA, Alagawany M, Taha AE, El-Mleeh A, El-Sayed SAA, Abd El-Hack ME, Elnesr SS. Effects of the dietary inclusion of a probiotic or prebiotic on florfenicol pharmacokinetic profile in broiler chicken. J Anim Physiol Anim Nutr (Berl) 2020; 104:549-557. [PMID: 32017274 DOI: 10.1111/jpn.13317] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2019] [Revised: 12/24/2019] [Accepted: 01/09/2020] [Indexed: 12/14/2022]
Abstract
We evaluated the effect of prebiotic or probiotic as feed additives on florfenicol kinetic in broilers feed. Unsexed two hundred, thirty-five-day-old broiler chickens, were put in four equal groups (n = 50). The first group was administrated florfenicol intravenous at 30 mg/kg body weight (BW) only once dosage without pre- or probiotic administration to determine the bioavailability. While, the second group was administrated florfenicol (intracrop routes; a dosage of 30 mg/kg BW for five progressive days) without pre- or probiotic co-administration. The third and the fourth groups were administrated the same dose of florfenicol (intracrop route) for five successive days, followed by 10 days of prebiotic or probiotic treatment respectively. The plasma florfenicol % was identified by high-pressure liquid chromatography (HPLC) after the first florfenicol administration (intravenous or intracrop routes) in all groups. Then, the residual levels of florfenicol were determined in liver, kidney and muscle tissues from the second, third and fourth groups which were exposed to florfenicol orally. Our results demonstrated that broilers pre-treated with prebiotic or probiotic significantly increased Cmax , AUC0- t , AUC0-inf as well as AUMC values, while significant drop was recorded in V/F and CL/F. Prebiotic or probiotic influenced the cumulative effect of florfenicol in liver and kidney tissues of treated birds.
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Affiliation(s)
- Samy A Elgeddawy
- Unit of Pharmacology, Department of Chemistry, Animal Health Research Institute, Giza, Egypt
| | - Hazem M Shaheen
- Department of Pharmacology, Faculty of Veterinary Medicine, Damanhour University, Damanhour, Egypt
| | - Yasser S El-Sayed
- Department of Veterinary Forensic Medicine and Toxicology, Faculty of Veterinary Medicine, Damanhour University, Damanhour, Egypt
| | - Magdy Abd Elaziz
- Department of Pharmacology, Faculty of Veterinary Medicine, Kafrelsheikh University, Damanhour, Egypt
| | - Ashraf Darwish
- Unit of Pharmacology, Department of Chemistry, Animal Health Research Institute, Giza, Egypt
| | - Dalia Samak
- Department of Veterinary Forensic Medicine and Toxicology, Faculty of Veterinary Medicine, Damanhour University, Damanhour, Egypt
| | - Gaber E Batiha
- Department of Pharmacology, Faculty of Veterinary Medicine, Damanhour University, Damanhour, Egypt
| | - Rehab A Mady
- Department of Pharmacology, Faculty of Veterinary Medicine, Damanhour University, Damanhour, Egypt
| | - May Bin-Jumah
- Biology Department, College of Science, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Ahmed A Allam
- Department of Zoology, Faculty of Science, Beni-suef University, Beni-suef, Egypt
| | - Mahmoud Alagawany
- Department of Poultry, Faculty of Agriculture, Zagazig University, Zagazig, Egypt
| | - Ayman E Taha
- Department of Animal Husbandry and Animal Wealth Development, Faculty of Veterinary Medicine, Alexandria University, Edfina, Egypt
| | - Amany El-Mleeh
- Department of Pharmacology, Faculty of Veterinary Medicine, Menoufia University, Menoufia, Egypt
| | - Sabry A A El-Sayed
- Department of Nutrition and Clinical Nutrition, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Egypt
| | | | - Shaaban S Elnesr
- Department of Poultry Production, Faculty of Agriculture, Fayoum University, Fayoum, Egypt
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9
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Li XT, Li SC, Wang B, Yang R, Zhang M, Li JL, Huang W, Cao L, Xiao SY. Effects of baicalin on pharmacokinetics of florfenicol and mRNA expression of CYP1A2, CYP2C11, CYP3A1, UGT1A1, MDR1, and ABCC2 in rats. Pharmacogn Mag 2020. [DOI: 10.4103/pm.pm_261_19] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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10
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Li S, Li X, Yang R, Wang B, Li J, Cao L, Xiao S, Huang W. Effects of anemoside B4 on pharmacokinetics of florfenicol and mRNA expression of CXR, MDR1, CYP3A37 and UGT1E in broilers. J Vet Med Sci 2019; 81:1804-1809. [PMID: 31611492 PMCID: PMC6943327 DOI: 10.1292/jvms.19-0293] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Pulsatillae radix, a traditional Chinese medicine (TCM), is often used
in combination with florfenicol for treatment of intestinal infection in Chinese
veterinary clinics. Anemoside B4 (AB4) is the major effective saponin in
Pulsatillae radix. This study aimed to investigate whether the
pharmacokinetics of florfenicol in broilers was affected by the combination of AB4. In
this study, broilers were given AB4 (50 mg/kg BW), or 0.9% sodium chloride solution by
oral administration for 7 days. They were then fed florfenicol orally (30 mg/kg BW) on the
eighth day. The results showed that the AUC(0-∞), MRT(0-∞),
t1/2z and Cmax of florfenicol were significantly decreased, and
the Vz/F and CLz/F were significantly increased by AB4; the mRNA expression levels of CXR,
CYP3A37 and MDR1 (except CXR and CYP3A37 in the liver) were up-regulated by AB4. In
conclusion, AB4 altered the pharmacokinetics of florfenicol, resulting in lower plasma
concentrations of florfenicol, this was probably related to the mRNA expression of CXR,
CYP3A37 and MDR1 in the jejunum and liver (except CXR and CYP3A37) increased by AB4. The
implications of these findings on the effect of traditional Chinese medicine containing
AB4 on the effectiveness of florfenicol in veterinary practice deserve study.
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Affiliation(s)
- Sicong Li
- Institute of Veterinary Pharmacology, Sichuan Animal Science Academy, 7 Niusha Road, Jinjiang district, Chengdu 610066, PR China.,Animal Breeding and Genetics Key Laboratory of Sichuan Province, 7 Niusha Road, Jinjiang district, Chengdu 610066, PR China
| | - Xuting Li
- Institute of Veterinary Pharmacology, Sichuan Animal Science Academy, 7 Niusha Road, Jinjiang district, Chengdu 610066, PR China.,Animal Breeding and Genetics Key Laboratory of Sichuan Province, 7 Niusha Road, Jinjiang district, Chengdu 610066, PR China
| | - Rui Yang
- Institute of Veterinary Pharmacology, Sichuan Animal Science Academy, 7 Niusha Road, Jinjiang district, Chengdu 610066, PR China.,Animal Breeding and Genetics Key Laboratory of Sichuan Province, 7 Niusha Road, Jinjiang district, Chengdu 610066, PR China
| | - Bin Wang
- Institute of Veterinary Pharmacology, Sichuan Animal Science Academy, 7 Niusha Road, Jinjiang district, Chengdu 610066, PR China.,Animal Breeding and Genetics Key Laboratory of Sichuan Province, 7 Niusha Road, Jinjiang district, Chengdu 610066, PR China
| | - Jinliang Li
- Institute of Veterinary Pharmacology, Sichuan Animal Science Academy, 7 Niusha Road, Jinjiang district, Chengdu 610066, PR China.,Animal Breeding and Genetics Key Laboratory of Sichuan Province, 7 Niusha Road, Jinjiang district, Chengdu 610066, PR China
| | - Liang Cao
- Sichuan Dingjian Animal Pharmaceutical Co., Ltd., 19 7th East Road, Checheng, Longquanyi district, Chengdu 610100, PR China
| | - Songyang Xiao
- Sichuan Dingjian Animal Pharmaceutical Co., Ltd., 19 7th East Road, Checheng, Longquanyi district, Chengdu 610100, PR China
| | - Wei Huang
- Sichuan Dingjian Animal Pharmaceutical Co., Ltd., 19 7th East Road, Checheng, Longquanyi district, Chengdu 610100, PR China
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11
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Lan W, Xiao X, Jiang Y, Jiang L, Zhao X, Yu Z, Zhu B, Li C, Bian L, Wang Z. Comparative pharmacokinetics of florfenicol in healthy and Pasteurella multocida-infected Gaoyou ducks. J Vet Pharmacol Ther 2019; 42:355-360. [PMID: 30912167 DOI: 10.1111/jvp.12761] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Accepted: 02/25/2019] [Indexed: 11/28/2022]
Abstract
Pasteurella multocida is the causative agent of fowl cholera, and florfenicol (FF) has potent antibacterial activity against P. multocida and is widely used in the poultry industry. In this study, we established a P. multocida infection model in ducks and studied the pharmacokinetics of FF in serum and lung tissues after oral administration of 30 mg/kg bodyweight. The maximum concentrations reached (Cmax) were lower in infected ducks (13.88 ± 2.70 μg/ml) vs. healthy control animals (17.86 ± 1.57 μg/ml). In contrast, the mean residence time (MRT: 2.35 ± 0.13 vs. 2.27 ± 0.18 hr) and elimination half-life (T½β : 1.63 ± 0.08 vs. 1.57 ± 0.12 hr) were similar for healthy and diseased animals, respectively. As a result, the area under the concentration curve for 0-12 hr (AUC0-12 hr ) for FF in healthy ducks was significantly greater than that in infected ducks (49.47 ± 5.31 vs. 34.52 ± 8.29 μg hr/ml). The pharmacokinetic differences of FF in lung tissues between the two groups correlated with the serum pharmacokinetic differences. The Cmax and AUC0-12 hr values of lung tissue in healthy ducks were higher than those in diseased ducks. The concentration of FF in lung tissues was approximately 1.2-fold higher than that in serum both in infected and healthy ducks indicating that FF is effective in treating respiratory tract infections in ducks.
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Affiliation(s)
- Weixuan Lan
- College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, China
| | - Xia Xiao
- College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, China.,Institutes of Agricultural Science and Technology Development, Yangzhou, Jiangsu, China
| | - Yongjia Jiang
- College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, China
| | - Lijie Jiang
- College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, China
| | - Xu Zhao
- College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, China
| | - Zhaoyang Yu
- College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, China
| | - Biwen Zhu
- College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, China
| | - Congcong Li
- College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, China
| | - Lin Bian
- College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, China
| | - Zhiqiang Wang
- College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, China.,Institutes of Agricultural Science and Technology Development, Yangzhou, Jiangsu, China
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12
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Liu Y, Guo L, Zloh M, Zhang Y, Huang J, Wang L. Relevance of Breast Cancer Resistance Protein to Pharmacokinetics of Florfenicol in Chickens: A Perspective from In Vivo and In Vitro Studies. Int J Mol Sci 2018; 19:ijms19103165. [PMID: 30326566 PMCID: PMC6214120 DOI: 10.3390/ijms19103165] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2018] [Revised: 10/06/2018] [Accepted: 10/12/2018] [Indexed: 02/07/2023] Open
Abstract
Florfenicol (FFC) is a valuable synthetic fluorinated derivative of thiamphenicol widely used to treat infectious diseases in food animals. The aims of the study were to investigate whether FFC is a substrate for the breast cancer resistance protein (BCRP) and whether the transporter influences oral availability of FFC. In vitro transport assays using MDCK-chAbcg2 cells were conducted to assess chicken BCRP-mediated transport of FFC, while in vivo pharmacokinetic experiments with single or combined BCRP inhibitor gefitinib were employed to study the role of BCRP in oral FFC disposition. According to U.S. Food and Drug Administration (FDA) criteria, FFC was found to be a potential BCRP substrate due to the net efflux ratio being over 2.0 (2.37) in MDCK cells stably transfected with chicken BCRP and the efflux completely reversed by a BCRP inhibitor (Gefitinib). The molecular docking results indicated that florfenicol can form favorable interactions with the binding pocket of homology modeled chicken BCRP. Pharmacokinetic studies of FFC in different aged broilers with different expression levels of BCRP showed that higher BCRP expression would cause a lower Area Under Curve (AUC) and a higher clearance of FFC. In addition, more extensive absorption of florfenicol after the co-administration with gefitinib (a BCRP inhibitor) was observed. The overall results demonstrated that florfenicol is a substrate of the chicken breast cancer resistant protein which in turn affects its pharmacokinetic behavior.
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Affiliation(s)
- Yang Liu
- Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, No. 1 Weigang, Nanjing 210095, China.
| | - Li Guo
- Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, No. 1 Weigang, Nanjing 210095, China.
| | - Mire Zloh
- Faculty of Pharmacy, University Business Academy, Trg Mladenaca 5, 21000 Novi Sad, Serbia.
| | - Yujuan Zhang
- Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, No. 1 Weigang, Nanjing 210095, China.
| | - Jinhu Huang
- Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, No. 1 Weigang, Nanjing 210095, China.
| | - Liping Wang
- Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, No. 1 Weigang, Nanjing 210095, China.
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13
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Elia AC, Pacini N, Fioravanti ML, Dörr AJM, Zaccaroni A, Parmeggiani AM, Gustinelli A, Mordenti O, Abete MC, Prearo M. Assessment of Detoxifying Markers for Florfenicol in Rainbow Trout Liver. JOURNAL OF AQUATIC ANIMAL HEALTH 2016; 28:258-265. [PMID: 27791693 DOI: 10.1080/08997659.2016.1206637] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Florfenicol (FF) is employed in fish farms to contest or prevent bacterial infections. However, this pharmaceutical may produce reactive oxygen species that may cause biochemical changes in antibiotic-treated fish. The aim of this study was to evaluate the effect of FF on Rainbow Trout Oncorhynchus mykiss treated for 10 d with 7.5 and 15 mg/kg FF followed by a withdrawal period of 5 d. Superoxide dismutase, catalase, glutathione peroxidase, glutathione reductase, glutathione S-transferase, glyoxalase I and glyoxalase II, total glutathione, lactic dehydrogenase, and alkaline phosphatase were investigated in the livers of treated and untreated fish. A general impairment of antioxidant enzymes and metabolic indicators was measured in FF-treated Rainbow Trout. Onset of oxidative damage may have occurred during the antibiotic treatment as a consequence of the effect of FF toxicity at mainly the highest dose. Nevertheless, the rise in levels of total glutathione and glutathione S-transferase even after the withdrawal period may shield the antibiotic-mediated oxidative processes. Received December 22, 2015; accepted May 26, 2016.
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Affiliation(s)
- Antonia Concetta Elia
- a Department of Chemistry , Biology and Biotechnology, University of Perugia , Via Elce di Sotto, 8, Perugia 06123 , Italy
| | - Nicole Pacini
- a Department of Chemistry , Biology and Biotechnology, University of Perugia , Via Elce di Sotto, 8, Perugia 06123 , Italy
| | - Maria Letizia Fioravanti
- b Department of Veterinary Medical Sciences , University of Bologna , Via Tolara di Sopra, 50, Ozzano Emilia 40064 , Italy
| | - Ambrosius Josef Martin Dörr
- a Department of Chemistry , Biology and Biotechnology, University of Perugia , Via Elce di Sotto, 8, Perugia 06123 , Italy
| | - Annalisa Zaccaroni
- b Department of Veterinary Medical Sciences , University of Bologna , Via Tolara di Sopra, 50, Ozzano Emilia 40064 , Italy
| | - Alba Maria Parmeggiani
- b Department of Veterinary Medical Sciences , University of Bologna , Via Tolara di Sopra, 50, Ozzano Emilia 40064 , Italy
| | - Andrea Gustinelli
- b Department of Veterinary Medical Sciences , University of Bologna , Via Tolara di Sopra, 50, Ozzano Emilia 40064 , Italy
| | - Oliviero Mordenti
- b Department of Veterinary Medical Sciences , University of Bologna , Via Tolara di Sopra, 50, Ozzano Emilia 40064 , Italy
| | - Maria Cesarina Abete
- c National Reference Centre for the Surveillance and Monitoring of Animal Feed, State Veterinary Institute , Via Bologna, 148, Turin 10154 , Italy
| | - Marino Prearo
- d Fish Disease Laboratory , State Veterinary Institute , Via Bologna, 148, Turin 10154 , Italy
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14
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Pérez R, Palma C, Burgos R, Jeldres JA, Espinoza A, Peñailillo AK. The acute phase response induced by Escherichia coli
lipopolysaccharide modifies the pharmacokinetics and metabolism of florfenicol in rabbits. J Vet Pharmacol Ther 2015; 39:183-90. [DOI: 10.1111/jvp.12244] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2015] [Accepted: 05/04/2015] [Indexed: 11/30/2022]
Affiliation(s)
- R. Pérez
- Laboratorio de Farmacología; Departamento de Ciencias Clínicas; Facultad de Ciencias Veterinarias; Universidad de Concepción; Chillán Chile
| | - C. Palma
- Laboratorio de Farmacología; Departamento de Ciencias Clínicas; Facultad de Ciencias Veterinarias; Universidad de Concepción; Chillán Chile
| | - R. Burgos
- Instituto de Farmacología. Facultad de Ciencias Veterinarias; Universidad Austral de Chile; Valdivia Chile
| | - J. A. Jeldres
- Laboratorio de Farmacología; Departamento de Ciencias Clínicas; Facultad de Ciencias Veterinarias; Universidad de Concepción; Chillán Chile
| | - A. Espinoza
- Laboratorio de Farmacología; Departamento de Ciencias Clínicas; Facultad de Ciencias Veterinarias; Universidad de Concepción; Chillán Chile
| | - A. K. Peñailillo
- Laboratorio de Farmacología; Departamento de Ciencias Clínicas; Facultad de Ciencias Veterinarias; Universidad de Concepción; Chillán Chile
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15
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Liu C, Wang SJ, Zhang Q, Shao YX. Influence of three coccidiostats on the pharmacokinetics of florfenicol in rabbits. Exp Anim 2014; 64:73-9. [PMID: 25319758 PMCID: PMC4329518 DOI: 10.1538/expanim.14-0064] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
In-feed Medication has been used for a long time to prevent coccidiosis, a worldwide
protozoal disease in rabbits. Florfenicol (FFC) has been widely used in veterinary clinics
for bacterial diseases treatment. Therefore, the use of combinations of coccidiostats with
FFC in rabbits is common. In the present study, we aimed to evaluate the effect of three
coccidiostats, sulfaquinoxaline (SUL), robenidine (ROB), and toltrazuril (TOL), as feed
additives on the pharmacokinetic profile of FFC in rabbits. The disposition kinetics of
FFC in rabbits were investigated after a single intravenous injection (25 mg/kg) in
rabbits fed anticoccidial-free diets or feeds containing SUL (250 ppm), ROB (66 ppm), or
TOL (2 ppm), respectively, for 20 days. Plasma FFC concentrations were determined by the
high performance liquid chromatography (HPLC) method. The pharmacokinetic parameters of
FFC were analyzed using a non-compartmental analysis based on the statistical moment
theory. The results demonstrated that ROB feeding resulted in an obvious decrease in
plasma FFC level as compared with anticoccidial-free feeding. The terminal elimination
half-life (t1/2z), area under the concentration–time curve
(AUC), area under the first moment curve (AUMC), and
mean residence time (MRT) significantly decreased, whereas the
elimination rate constant (λz) and total body clearance
(CLz) obviously increased in rabbits pretreated with ROB.
However, we did not find that SUL or TOL feeding had any effect on the pharmacokinetic
profile of FFC. Our findings suggested that more attention should be paid to the use of
FFC in rabbits supplemented with ROB.
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Affiliation(s)
- Chun Liu
- Laboratory Animal Center, Nantong University, Nantong, P.R. China
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16
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Pérez R, Palma C, Drápela C, Sepulveda M, Espinoza A, Peñailillo AK. Pharmacokinetics of florfenicol after intravenous administration in Escherichia coli lipopolysaccharide-induced endotoxaemic sheep. J Vet Pharmacol Ther 2014; 38:144-9. [PMID: 25229993 DOI: 10.1111/jvp.12160] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2014] [Accepted: 08/02/2014] [Indexed: 11/29/2022]
Abstract
Experiments in different animal species have shown that febrile conditions, induced by Escherichia coli lipopolysaccharide (LPS), may alter the pharmacokinetic properties of drugs. The objective was to study the effects of a LPS-induced acute-phase response (APR) model on plasma pharmacokinetics of florfenicol (FFC) after its intravenous administration in sheep. Six adult clinically healthy Suffolk Down sheep, 8 months old and 35.5 ± 2.2 kg in body weight (bw), were distributed through a crossover factorial 2 × 2 design, with 4 weeks of washout. Pairs of sheep similar in body weight were assigned to experimental groups: Group 1 (LPS) was treated with three intravenous doses of 1 μg/kg bw of E. coli LPS before FFC treatment. Group 2 (control) was treated with an equivalent volume of saline solution (SS) at similar intervals as LPS. At 24 h after the first injection of LPS or SS, an intravenous bolus of 20 mg/kg bw of FFC was administered. Blood samples (5 mL) were collected before drug administration and at different times between 0.05 and 48.0 h after treatment. FFC plasma concentrations were determined by liquid chromatography. A noncompartmental pharmacokinetic model was used for data analysis, and data were compared using a Mann-Whitney U-test. The mean values of AUC0-∞ in the endotoxaemic sheep (105.9 ± 14.3 μg·h/mL) were significantly higher (P < 0.05) than values observed in healthy sheep (78.4 ± 5.2 μg·h/mL). The total mean plasma clearance (CLT ) decreased from 257.7 ± 16.9 mL·h/kg in the control group to 198.2 ± 24.1 mL·h/kg in LPS-treated sheep. A significant increase (P < 0.05) in the terminal half-life was observed in the endotoxaemic sheep (16.9 ± 3.8 h) compared to the values observed in healthy sheep (10.4 ± 3.2 h). In conclusion, the APR induced by the intravenous administration of E. coli LPS in sheep produces higher plasma concentrations of FFC due to a decrease in the total body clearance of the drug.
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Affiliation(s)
- R Pérez
- Laboratorio de Farmacología, Departamento de Ciencias Clínicas, Facultad de Ciencias Veterinarias, Universidad de Concepción, Chillán, Chile
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17
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Wang GY, Tu P, Chen X, Guo YG, Jiang SX. Effect of three polyether ionophores on pharmacokinetics of florfenicol in male broilers. J Vet Pharmacol Ther 2012; 36:494-501. [PMID: 23067134 DOI: 10.1111/jvp.12020] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2012] [Accepted: 09/14/2012] [Indexed: 11/28/2022]
Abstract
Drug-drug interactions (DDIs) may adversely affect the prevention and cure of diseases. The effects of three polyether ionophore antibiotics, salinomycin (SAL), monensin (MON), and maduramycin (MAD) on the pharmacokinetics of florfenicol (FFC) were investigated in broilers. The chickens were fed rations with or without SAL (60 mg/kg feeds), MON (120 mg/kg feeds), or MAD (5 mg/kg feeds) for 14 consecutive days. FFC was given to the chickens either intravenously (i.v.) or orally (p.o.) at a single dose of 30 mg/kg body weight. Blood samples were taken from each chicken at 0-24 h postadministration of FFC. The plasma concentration of FFC was detected by high-performance liquid chromatography. The plasma concentration of FFC decreased with i.v. or p.o. co-administration of SAL, MON, or MAD in broilers, implying occurrence of DDIs during the co-administration of FFC with these ionophores. Our findings suggest that more attention should be given to the use of FFC to treat bacterial infections in chickens supplemented with polyether ionophore antibiotics.
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Affiliation(s)
- G-Y Wang
- Laboratory of Veterinary Pharmacology and Toxicology, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China; Animal College of Science and Technology, Henan University of Science and Technology, Luoyang, China
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