An HPLC method for the analysis of levamisole and thiabendazole has been developed with recoveries varying over 63-75%. The two anthelmintics are extracted from meat with ethyl acetate, purified by liquid/liquid extraction and analyzed quantitatively on a mu Bondapak C18 column. The optimum detection is achieved by means of a photodiode array detector at 240 nm for levamisole and at 300 nm for thiabendazole. The detection limits for both compounds in meat are 25 micrograms/kg and 5 micrograms/kg, respectively.
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http://dx.doi.org/10.1007/BF01190869 | DOI Listing |
Infect Genet Evol
August 2024
College of Animal Sciences, Zhejiang Provincial Key Laboratory of Preventive Veterinary Medicine, Zhejiang University, Hangzhou 310058, China; Melbourne Veterinary School, Faculty of Science, The University of Melbourne, Parkville, Victoria 3010, Australia. Electronic address:
Nuclear hormone receptors (NHRs) are emerging target candidates against nematode infection and resistance. However, there is a lack of comprehensive information on NHR-coding genes in parasitic nematodes. In this study, we curated the nhr gene family for 60 major parasitic nematodes from humans and animals.
View Article and Find Full Text PDFAnimals (Basel)
March 2024
Laboratório de Doenças Parasitárias, Programa de Pós-Graduação em Ciências Veterinárias, Faculdade de Veterinária, Universidade Estadual do Ceará, Fortaleza 60714-903, Ceará, Brazil.
The present study aimed to evaluate the effect of nanoemulsions using combined synthetic anthelmintics, thiabendazole (TBZ), levamisole (LEV), and ivermectin (IVM), with carvacryl acetate (CA) against , and also tested the presence and absence of alginate (ALG). The anthelmintic effect of the CA/TBZ nanoemulsion was evaluated in the egg hatch test (EHT). The effects of CA/IVM and CA/LEV nanoemulsions were evaluated in the larval development test (LDT).
View Article and Find Full Text PDFVet World
August 2023
Department of Life and Consumer Sciences, University of South Africa, Florida Campus, Roodepoort, 1709, South Africa.
Background And Aim: Anthelmintic resistance (AR) and acaricide resistance (ACR) pose great economic threat to communal livestock raised by rural communities, limiting sustainable production. This study was conducted to assess the occurrence of AR and ACR against nematodes and ticks that infest small ruminants (sheep and goats) from small-scale farming communities in the North West Province of South Africa, as well as document the associated risk factors.
Materials And Methods: The study was conducted on small-scale farming locations in two districts of the North West Province, namely, Dr.
Parasit Vectors
May 2023
Department of Medical Parasitology and Infection Biology, Swiss Tropical and Public Health Institute, Kreuzstrasse 2, 4123, Allschwil, Switzerland.
Background: Few anthelminthics are currently available, manifesting the urgent need for new treatment options. In vitro profiling of current anthelminthics against larval and adult stage helminths displayed varying effects on closely related worm species and between life stages of the same species. Conversely, limited research has been performed on the egg stage of human hookworms, and the effects of investigational compounds on the egg stage are not routinely assessed.
View Article and Find Full Text PDFFood Addit Contam Part A Chem Anal Control Expo Risk Assess
April 2023
Doping Control Laboratory, Department of Pharmacology, Istanbul Pendik Veterinary Control Institute, Istanbul, Türkiye.
The performance criteria of analytical methods and the necessity for stability analysis to provide the accuracy of the results of the analyzed samples are explained in European Commission Decision 2021/808/EC and the guidance document SANTE/2021/11312. Detection of time-dependent changes in drug concentrations during storage or transport and re-analysis of samples are crucial to obtain high-quality results and reliable data. In this way, it allows toxicologists to interpret the analytical results accurately in drug analyses.
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