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Zuskova E, Piackova V, Valentova O, Zalohova K, Velisek J. Acute toxicity of praziquantel to fish Danio rerio and planktonic crustacean Daphnia magna. VET MED-CZECH 2022; 67:579-584. [PMID: 38623477 PMCID: PMC11016302 DOI: 10.17221/7/2022-vetmed] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Accepted: 09/19/2022] [Indexed: 04/17/2024] Open
Abstract
This study evaluated the toxicity of the pyrazino isoquinoline anthelmintic praziquantel (PZQ) to the Danio rerio zebrafish and Daphnia magna water flea. The estimated 24 h and 96 h LC50 of PZQ to the zebrafish was 39.9 mg/l and 30.4 mg/l, respectively. The highest 24 h and 96 h non-lethal concentration (LC0) was 21.7 mg/l and 21.2 mg/l, respectively. The mobility inhibition test of the juvenile Daphnia magna revealed a 48 h EC50 of 42.7 mg/l.
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Affiliation(s)
- Eliska Zuskova
- South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Faculty of Fisheries and Protection of Waters, University of South Bohemia in Ceske Budejovice, Ceske Budejovice, Czech Republic
| | - Veronika Piackova
- South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Faculty of Fisheries and Protection of Waters, University of South Bohemia in Ceske Budejovice, Ceske Budejovice, Czech Republic
| | - Olga Valentova
- South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Faculty of Fisheries and Protection of Waters, University of South Bohemia in Ceske Budejovice, Ceske Budejovice, Czech Republic
| | - Klara Zalohova
- South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Faculty of Fisheries and Protection of Waters, University of South Bohemia in Ceske Budejovice, Ceske Budejovice, Czech Republic
| | - Josef Velisek
- South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Faculty of Fisheries and Protection of Waters, University of South Bohemia in Ceske Budejovice, Ceske Budejovice, Czech Republic
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2
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Norbury LJ, Shirakashi S, Power C, Nowak BF, Bott NJ. Praziquantel use in aquaculture - Current status and emerging issues. Int J Parasitol Drugs Drug Resist 2022; 18:87-102. [PMID: 35220160 PMCID: PMC8881684 DOI: 10.1016/j.ijpddr.2022.02.001] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Revised: 02/13/2022] [Accepted: 02/17/2022] [Indexed: 12/02/2022]
Abstract
Parasitic diseases are major constraints in fish mariculture. The anthelmintic praziquantel (PZQ) can effectively treat a range of flatworm parasites in a variety of fish species and has potential for broader application than its current use in the global aquaculture industry. In this review we report on PZQ's current use in the aquaculture industry and discuss its efficacy against various flatworm parasites of fish. Routes of PZQ administration are evaluated, along with issues related to palatability, pharmacokinetics and toxicity in fish, while PZQ's effects on non-target species, environmental impacts, and the development of drug-resistance are discussed.
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Affiliation(s)
- Luke J Norbury
- School of Science, STEM College, RMIT University, Bundoora, 3083, Victoria, Australia
| | - Sho Shirakashi
- Aquaculture Research Institute, Kindai University, Wakayama, 649-2211, Japan
| | - Cecilia Power
- School of Science, STEM College, RMIT University, Bundoora, 3083, Victoria, Australia
| | - Barbara F Nowak
- School of Science, STEM College, RMIT University, Bundoora, 3083, Victoria, Australia; Institute for Marine and Antarctic Studies, University of Tasmania, Launceston, 7250, Tasmania, Australia
| | - Nathan J Bott
- School of Science, STEM College, RMIT University, Bundoora, 3083, Victoria, Australia.
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Ding TY, Shu XG, Xiong RP, Qiu JL, Li L, He LM. Simultaneous determination of praziquantel and its main metabolites in the tissues of black goats and their residue depletion. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2022; 39:666-677. [PMID: 35394409 DOI: 10.1080/19440049.2022.2032380] [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] [Indexed: 10/18/2022]
Abstract
Praziquantel (PZQ) is a pyrazino-isoquinoline compound with broad spectrum of activity against parasitic trematodes and cestodes, and a key veterinary drug in the parasitic disease control field. However, PZQ residues caused by non-conforming or excessive use in food-producing animals may pose a serious threat to human health. Herein, a simple, sensitive and reproducible LC-MS/MS method was developed for the simultaneous determination of praziquantel and trans- and cis-4-hydroxypraziquantel in black goat tissues to guide the reasonable use of PZQ. The mean recoveries for three target analytes were 71.2 ∼ 117.6%, and the limits of quantification were 1.0 μg/kg. Twenty-five healthy black goats were administered a single dose of praziquantel tablets at a dose of 35 mg/kg of body weight for residue elimination study, The results revealed that praziquantel and 4-hydroxypraziquantel were rapidly depleted in goat tissues and the elimination half-lives did not exceed 1 day in all tissues except for muscle and lung. It provides guidance for the establishment of maximum residue limit of praziquantel in goat.
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Affiliation(s)
- Tong-Yan Ding
- National Reference Laboratory of Veterinary Drug Residues, College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Xiao-Gui Shu
- Quality Supervision, Inspection and Testing Center for Domestic Animal Products (Guangzhou), Ministry of Agriculture and Rural Affairs, Guangzhou, China
| | - Ren-Ping Xiong
- National Reference Laboratory of Veterinary Drug Residues, College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Jing-Li Qiu
- National Reference Laboratory of Veterinary Drug Residues, College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Lu Li
- Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics, Development and Safety Evaluation, South China Agricultural University, Guangzhou, China
| | - Li-Min He
- National Reference Laboratory of Veterinary Drug Residues, College of Veterinary Medicine, South China Agricultural University, Guangzhou, China.,Quality Supervision, Inspection and Testing Center for Domestic Animal Products (Guangzhou), Ministry of Agriculture and Rural Affairs, Guangzhou, China
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4
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Tang Y, Zhang H, Yang G, Fang C, Kong C, Tian L, Huang X. Pharmacokinetics studies of eugenol in Pacific white shrimp (Litopenaeus vannamei) after immersion bath. BMC Vet Res 2022; 18:122. [PMID: 35361203 PMCID: PMC8969250 DOI: 10.1186/s12917-022-03145-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Accepted: 01/04/2022] [Indexed: 11/04/2022] Open
Abstract
Background Eugenol is the most commonly used plant anesthetic to relieve the stressors during various aquaculture procedures. This study aims to investigate the pharmacokinetics of eugenol in Pacific white shrimp by immersion baths in a simulated transportation. Results The pharmacokinetics of eugenol were firstly investigated in Pacific white shrimp by immersion baths of 300 mg L− 1 eugenol over 5 min (Treatment 1), 10 mg L− 1 eugenol during 24 h (Treatment 2) and a sequential immersion administration (Treatment 3). Concentrations of eugenol in hemolymph, hepatopancreas, and muscle were determined using Gas chromatography-tandem mass spectrometry (GC-MS/MS). After immersion bath of Treatment 1, the elimination half-life (t1/2z) values are 1.3 h and 11 h for hepatopancreas and muscles, indicating the rapid absorption and elimination of eugenol in shrimp. Under the Treatment 2 administration, the eugenol peak concentration is 6527.9 μg/kg in muscle, followed by 402.8 μg/kg in hepatopancreas, with the lowest concentration of 37.9 μg/L in hemolymph. Area under the curve (AUC0-∞) values lie in the order of muscle > hepatopancreas > hemolymph, suggesting that eugenol tends to accumulate in muscle by the immersion administration. Moreover, the average residence time (MRT0-∞) values of 38.6, 23.0 and 115.3 h for hemolymph, hepatopancreas and muscle are achieved, which may indicate that hepatopancreas is the main organ for elimination of eugenol. After combining the conditions in a sequential bath immersion of eugenol (Treatment 3), the maximum concentration (Cmax) values of eugenol are higher than those achieved in Treatment 2, indicating that accumulation of eugenol happened in haemolymph, hepatopancreas and muscle. In addition, the corresponding t1/2z values are 4.7, 14.9 and 47.6 h, respectively, suggesting the faster elimination from the tissues following sequential administration. After the immersion bath, eugenol concentrations in muscle of Pacific white shrimp are lower than 2.5 mg/kg at 2 h, 48 h and 24.5 h in Treatment 1 ~ 3. Conclusions A withdrawal period of 2 h, 48 h and 24.5 h following a 300 mg L− 1 of eugenol over a 5-min, 10 mg L− 1 eugenol concentration during a 24-h and combined conditions in a sequential immersion bath were suggested. Supplementary Information The online version contains supplementary material available at 10.1186/s12917-022-03145-3.
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Affiliation(s)
- Yunyu Tang
- East China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Jungong 300, Shanghai, 200090, P. R. China
| | - Haixin Zhang
- Jiang Xi Provincial Fisheries Research Institute, Fudayou 1099, Nanchang, 330039, P. R. China
| | - Guangxin Yang
- East China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Jungong 300, Shanghai, 200090, P. R. China
| | - Changling Fang
- East China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Jungong 300, Shanghai, 200090, P. R. China
| | - Cong Kong
- East China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Jungong 300, Shanghai, 200090, P. R. China
| | - Liangliang Tian
- East China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Jungong 300, Shanghai, 200090, P. R. China
| | - Xuanyun Huang
- East China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Jungong 300, Shanghai, 200090, P. R. China.
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Fu G, Dong Y, Zhang X, Hu K. Metabolomic profiles and pathways of praziquantel in crucian carp. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2020; 80:103466. [PMID: 32798734 DOI: 10.1016/j.etap.2020.103466] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 07/31/2020] [Accepted: 08/03/2020] [Indexed: 06/11/2023]
Abstract
Praziquantel (PZQ) is a drug commonly used to treat some parasitic infections in animals. This study aimed to apply a reliable and simple method to identify important biological metabolites relevant to PZQ in crucian carp (Carassius auratus) to decipher the metabolic pathways and provide a basis for developing new anti-parasite drugs. The experimental group of crucian carp was administered oral PZQ at a dose of 10 mg kg-1 via a stomach feed tube. All biological blood samples were analysed using liquid chromatography electrospray ionization/quadrupole time-of-flight mass spectrometry (LC ESI/Q-TOF MS). MetPA analysis was used to identify relevant pathways for PZQ in crucian carp. Thirty-five potential metabolic pathways were revealed by MetPA network software. Furthermore, the chemical structures of the related metabolites and pathways were identified by comparison with data obtained from free online databases. Forty-four significantly differentially abundant endogenous metabolites were found in the PZQ-treated crucian carp. The changes in metabolomic profiles and pathways induced by PZQ played a role in inhibiting pathogenesis.
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Affiliation(s)
- Guihong Fu
- National Pathogen Collection Center for Aquatic Animals, Shanghai Ocean University, 999 Hucheng Huan Road, Shanghai 201306, China; National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai 201306, China; Key Laboratory of Freshwater Aquatic Genetic Resources, Ministry of Agriculture, Shanghai 201306, China; Hunan Engineering Research Center for Utilization of Characteristics of Aquatic Resources, Hunan Agricultural University, Changsha 410128, China
| | - Yaping Dong
- National Pathogen Collection Center for Aquatic Animals, Shanghai Ocean University, 999 Hucheng Huan Road, Shanghai 201306, China; National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai 201306, China; Key Laboratory of Freshwater Aquatic Genetic Resources, Ministry of Agriculture, Shanghai 201306, China
| | - Xiaoming Zhang
- National Pathogen Collection Center for Aquatic Animals, Shanghai Ocean University, 999 Hucheng Huan Road, Shanghai 201306, China; National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai 201306, China; Key Laboratory of Freshwater Aquatic Genetic Resources, Ministry of Agriculture, Shanghai 201306, China
| | - Kun Hu
- National Pathogen Collection Center for Aquatic Animals, Shanghai Ocean University, 999 Hucheng Huan Road, Shanghai 201306, China; National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai 201306, China; Key Laboratory of Freshwater Aquatic Genetic Resources, Ministry of Agriculture, Shanghai 201306, China.
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Baralla E, Varoni MV, Nieddu M, Demontis MP, Merella P, Burreddu C, Garippa G, Boatto G. Determination of Praziquantel in Sparus aurata L. after Administration of Medicated Animal Feed. Animals (Basel) 2020; 10:ani10030528. [PMID: 32245248 PMCID: PMC7142509 DOI: 10.3390/ani10030528] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Revised: 03/19/2020] [Accepted: 03/20/2020] [Indexed: 11/16/2022] Open
Abstract
Simple Summary The present study aimed to determine the praziquantel concentration in Sparus aurata muscle after oral administration of medicated feed. The in-feed treatment is commonly used in aquaculture breeding because it allows the treatment of a large fish population without stress. However, no residue limit exists for praziquantel in fish for human consumption, so the purpose of this work was to verify if this drug was able to accumulate in fish tissues after this treatment. The high-sensitivity analytical method developed in this work permitted to identify and quantify low concentrations of the drug in gilthead sea bream muscle, after the above-mentioned treatment. This method can be useful to competent authorities in evaluating the appropriate withdrawal time in fish treated with praziquantel and intended for human consumption. Abstract Praziquantel (PZQ) is an anthelmintic drug used in humans and animals against Platyhelminthes and in aquaculture in the Far East. Medicated feed is one of the most convenient forms of oral administration of drugs in aquaculture because it allows to treat a large population of fish in an easy way. However, this treatment may lead to residues in fish intended for human consumption. In this study, a liquid chromatography with tandem mass spectrometry (LC-MS/MS) method was developed in order to verify the presence of PZQ in samples of Sparus aurata after oral administration of feed treated with PZQ. The method was validated according to international guidelines. It showed good recoveries, selectivity and sensitivity (LOD and LOQ were 3.0 and 9.3 ng/g, respectively), with precision and matrix effect values ≤ 15%. This method could also be applied to determine PZQ residue in other fish species and thus to evaluate the appropriate withdrawal time in treated fish intended for human consumption.
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Affiliation(s)
- Elena Baralla
- Department of Veterinary Medicine, University of Sassari, 07100 Sassari, Italy; (E.B.); (M.V.V.); (M.P.D.); (P.M.); (C.B.); (G.G.)
| | - Maria Vittoria Varoni
- Department of Veterinary Medicine, University of Sassari, 07100 Sassari, Italy; (E.B.); (M.V.V.); (M.P.D.); (P.M.); (C.B.); (G.G.)
| | - Maria Nieddu
- Department of Chemistry and Pharmacy, University of Sassari, 07100 Sassari, Italy;
- Correspondence: ; Tel.: +39-079228719
| | - Maria Piera Demontis
- Department of Veterinary Medicine, University of Sassari, 07100 Sassari, Italy; (E.B.); (M.V.V.); (M.P.D.); (P.M.); (C.B.); (G.G.)
| | - Paolo Merella
- Department of Veterinary Medicine, University of Sassari, 07100 Sassari, Italy; (E.B.); (M.V.V.); (M.P.D.); (P.M.); (C.B.); (G.G.)
| | - Caterina Burreddu
- Department of Veterinary Medicine, University of Sassari, 07100 Sassari, Italy; (E.B.); (M.V.V.); (M.P.D.); (P.M.); (C.B.); (G.G.)
| | - Giovanni Garippa
- Department of Veterinary Medicine, University of Sassari, 07100 Sassari, Italy; (E.B.); (M.V.V.); (M.P.D.); (P.M.); (C.B.); (G.G.)
| | - Gianpiero Boatto
- Department of Chemistry and Pharmacy, University of Sassari, 07100 Sassari, Italy;
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Yamasaki K, Taguchi K, Nishi K, Otagiri M, Seo H. Enhanced dissolution and oral bioavailability of praziquantel by emulsification with human serum albumin followed by spray drying. Eur J Pharm Sci 2019; 139:105064. [PMID: 31491499 DOI: 10.1016/j.ejps.2019.105064] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Revised: 08/08/2019] [Accepted: 09/02/2019] [Indexed: 10/26/2022]
Abstract
The goal of this study was to enhance the oral bioavailability of praziquantel through its conjugation with human serum albumin (HSA). Praziquantel-HSA particles were produced by spray drying an emulsion of an aqueous solution of HSA and a solution of praziquantel in oil. The particles were agglomerates of multiple smooth corrugated particles containing amorphous praziquantel nearly equivalent to the theoretical doses. The solubility of praziquantel in an aqueous medium was enhanced in both the produced particles and the physical mixture. In addition, the dissolution rate in an aqueous medium was enhanced in the case of particles, but not in a physical mixture. Thus, the inclusion of HSA by emulsification followed by spray drying appeared to contribute to the enhanced dissolution rate. In a pharmacokinetic study, the maximum plasma concentration (Cmax) and the area under the concentration-time curve (AUC) for the produced particles (HSA/praziquantel = 1/1 w/w) were approximately two times higher than the corresponding values for raw praziquantel. This increased oral bioavailability of the particles was considered to be due to the enhanced dissolution rate. This process for producing praziquantel-HSA particles could be useful in terms of improving the oral bioavailability of the other hydrophobic drugs.
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Affiliation(s)
- Keishi Yamasaki
- Faculty of Pharmaceutical Sciences, Sojo University, 4-22-1 Ikeda, Nishi-ku, Kumamoto, Japan; DDS Research Institute, Sojo University, 4-22-1 Ikeda, Nishi-ku, Kumamoto, Japan.
| | - Kazuaki Taguchi
- Faculty of Pharmaceutical Sciences, Sojo University, 4-22-1 Ikeda, Nishi-ku, Kumamoto, Japan; Keio University Faculty of Pharmacy, 1-5-30 Shibakoen, Minato-ku, Tokyo, Japan
| | - Koji Nishi
- Faculty of Pharmaceutical Sciences, Sojo University, 4-22-1 Ikeda, Nishi-ku, Kumamoto, Japan; DDS Research Institute, Sojo University, 4-22-1 Ikeda, Nishi-ku, Kumamoto, Japan
| | - Masaki Otagiri
- Faculty of Pharmaceutical Sciences, Sojo University, 4-22-1 Ikeda, Nishi-ku, Kumamoto, Japan; DDS Research Institute, Sojo University, 4-22-1 Ikeda, Nishi-ku, Kumamoto, Japan
| | - Hakaru Seo
- Faculty of Pharmaceutical Sciences, Sojo University, 4-22-1 Ikeda, Nishi-ku, Kumamoto, Japan; DDS Research Institute, Sojo University, 4-22-1 Ikeda, Nishi-ku, Kumamoto, Japan
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8
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Bader C, Starling DE, Jones DE, Brewer MT. Use of praziquantel to control platyhelminth parasites of fish. J Vet Pharmacol Ther 2018; 42:139-153. [PMID: 30556228 DOI: 10.1111/jvp.12735] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Revised: 09/27/2018] [Accepted: 10/02/2018] [Indexed: 12/15/2022]
Abstract
Fish are common definitive and intermediate hosts for a variety of parasitic flatworms. In unstressed wild populations, parasitic infections often go unnoticed and are perceived to represent a lesser threat to fish health. In contrast, platyhelminth parasitism of captive fish often results in decreased weight gain and increased mortality which often necessitates chemotherapeutic treatment. The presence of platyhelminth parasites in fish tissues is not only unappealing but in some cases also represents a threat to human health. In veterinary medicine, one of the most commonly used agents with anti-flatworm activity is praziquantel; yet, no praziquantel products are labeled for use in fish in the United States. Veterinarians may use praziquantel preparations approved for other vertebrate species under the Animal Medicinal Drug Use Clarification Act (AMDUCA). However, such extra-label use should be informed by scientific evidence including efficacy and tissue residue studies. Herein, we review studies testing the efficacy of praziquantel for treatment of platyhelminthes along with an assessment of routes of administration, pharmacokinetics, and toxicity information.
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Affiliation(s)
- Chris Bader
- Department of Veterinary Pathology, Iowa State University College of Veterinary Medicine, Ames, Iowa
| | - David E Starling
- Department of Biomedical Sciences, Iowa State University College of Veterinary Medicine, Ames, Iowa
| | - Douglas E Jones
- Department of Veterinary Pathology, Iowa State University College of Veterinary Medicine, Ames, Iowa
| | - Matthew T Brewer
- Department of Veterinary Pathology, Iowa State University College of Veterinary Medicine, Ames, Iowa
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Bader C, Jesudoss Chelladurai J, Starling DE, Jones DE, Brewer MT. Efficacy of injectable praziquantel for elimination of trematode metacercariae in bluegills (Lepomis macrochirus) and quantification of parasite death by propidium iodide staining. Parasitol Res 2017; 117:365-370. [PMID: 29264719 DOI: 10.1007/s00436-017-5703-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Accepted: 11/29/2017] [Indexed: 10/18/2022]
Abstract
Digenean trematodes have complex life cycles and control of these flatworms can be accomplished by eliminating immature parasite stages from intermediate hosts. In aquaculture systems, presence of trematode metacercariae can negatively impact fish health and lead to economic losses. Posthodiplostomum minimum is a parasite of birds that uses bluegill sunfish (Lepomis macrochirus) as the intermediate host and is commonly found in fish used to stock waterways for recreational purposes. In this study, we evaluated killing of P. minimum metacercariae by injectable praziquantel in naturally infected bluegills. Using propidium iodide staining and motility assessment, we found that 5 mg/kg administered intramuscularly was effective for parasite killing. However, metacercarial death was not apparent until day 7 post-treatment. Our results demonstrated that propidium iodide staining is an effective method for detecting death in metacercariae recovered from treated fish. This method was at least as sensitive as objective motility scoring and provided quantitative assessment of parasite death. Future studies involving treatment of metacercariae in fish with praziquantel may need to be carried out over a period of weeks in order to accurately assess parasite killing and would benefit from using the propidium iodide method.
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Affiliation(s)
- Chris Bader
- Department of Veterinary Pathology, College of Veterinary Medicine, Iowa State University, 2758 Vet Med, 1800 Christensen Dr., Ames, IA, 50011, USA
| | - Jeba Jesudoss Chelladurai
- Department of Veterinary Pathology, College of Veterinary Medicine, Iowa State University, 2758 Vet Med, 1800 Christensen Dr., Ames, IA, 50011, USA
| | - David E Starling
- Department of Biomedical Sciences, College of Veterinary Medicine, Iowa State University, Ames, IA, USA
| | - Douglas E Jones
- Department of Veterinary Pathology, College of Veterinary Medicine, Iowa State University, 2758 Vet Med, 1800 Christensen Dr., Ames, IA, 50011, USA
| | - Matthew T Brewer
- Department of Veterinary Pathology, College of Veterinary Medicine, Iowa State University, 2758 Vet Med, 1800 Christensen Dr., Ames, IA, 50011, USA.
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He L, Gao F, Li E, Tzuoh Lee J, Bian L, Armstrong DW. Chromatographic separation of racemic praziquantel and its residual determination in perch by LC-MS/MS. Talanta 2017; 174:380-386. [DOI: 10.1016/j.talanta.2017.05.026] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2016] [Revised: 05/09/2017] [Accepted: 05/10/2017] [Indexed: 11/28/2022]
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Vergneau-Grosset C, Larrat S. Evidence-Based Advances in Aquatic Animal Medicine. Vet Clin North Am Exot Anim Pract 2017; 20:839-856. [PMID: 28781036 DOI: 10.1016/j.cvex.2017.04.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Fish and aquatic invertebrates deserve evidence-based medicine. Pharmacologic information is available; most pharmacokinetic studies are derived from the aquaculture industry and extrapolated to ornamental fish. Conversely, advanced diagnostics and information regarding diseases affecting only ornamental fish and invertebrates require more peer-reviewed experimental studies; the examples of carp edema virus, sea star wasting disease, seahorse nutrition, and gas bubble disease of fish under human care are discussed. Antinociception is also a controversial topic of growing interest in aquatic animal medicine. This article summarizes information regarding new topics of interest in companion fish and invertebrates and highlights some future avenues for research.
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Affiliation(s)
- Claire Vergneau-Grosset
- Zoological Medicine Service, Aquarium du Québec, Faculté de médecine vétérinaire, Université de Montréal, 3200 Sicotte, Saint-Hyacinthe, Quebec J2S 2M2, Canada
| | - Sylvain Larrat
- Clinique Vétérinaire Benjamin Franklin, 38 Rue Du Danemark Za Porte Océane 2, Brech/Auray 56400, France.
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12
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Xu N, Dong J, Yang Y, Ai X. Pharmacokinetics and residue depletion of praziquantel in rice field eels Monopterus albus. DISEASES OF AQUATIC ORGANISMS 2016; 119:67-74. [PMID: 27068504 DOI: 10.3354/dao02979] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
We investigated the pharmacokinetic characteristics of praziquantel (PZQ) in rice field eels Monopterus albus. Pharmacokinetic parameters were determined following a single intravenous administration (5 mg kg(-1) body weight [bw]) and a single oral administration (10 mg kg(-1) bw) at 22.0 ± 0.7°C. We also evaluated residue depletion in tissues following daily administration of PZQ (10 mg kg(-1) bw) that was given orally for 3 consecutive days at 22.0 ± 0.7°C. Following intravenous treatment, the plasma concentration-time curve was best described by a 3-compartment open model, with distribution half-life (t(1/2α)), elimination half-life (t(1/2β)), and area under the concentration-time curve (AUC) of 0.54 h, 17.10 h, and 14505.12 h µg l(-1), respectively. After oral administration, the plasma concentration-time curve was best described by a 1-compartment open model with first-order absorption, with absorption half-life (t(1/2Ka)), elimination half-life (t(1/2Ke)), peak concentration (C(max)), time-to-peak concentration (T(max)), and AUC estimated to be 2.28 h, 6.66 h, 361.29 µg l(-1), 5.36 h, and 6065.46 h µg l(-1), respectively. The oral bioavailability (F) was 20.9%. With respect to residue depletion of PZQ, the t(1/2β) values of muscle, skin, liver, and kidney were 20.2, 28.4, 14.9, and 54.1 h, respectively. Our results indicated rapid absorption, rapid elimination, and low bioavailability of PZQ in rice field eels at the tested dosing conditions.
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Affiliation(s)
- Ning Xu
- Freshwater Fish Germplasm Quality Supervision and Testing Center, Ministry of Agriculture, Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan 430223, PR China
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