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Lifschitz A, Nava S, Miró V, Canton C, Alvarez L, Lanusse C. Macrocyclic lactones and ectoparasites control in livestock: Efficacy, drug resistance and therapeutic challenges. Int J Parasitol Drugs Drug Resist 2024; 26:100559. [PMID: 39128184 DOI: 10.1016/j.ijpddr.2024.100559] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2024] [Revised: 07/30/2024] [Accepted: 08/07/2024] [Indexed: 08/13/2024]
Abstract
Macrocyclic lactones (MLs) are the cornerstone of parasite control in livestock due to their broad-spectrum activity against endo (nematodes) and ecto (lice, ticks, mites) parasites. These molecules, introduced into the veterinary pharmaceutical market 40 years ago, have substantially improved animal welfare and productivity by offering extended high efficacy, reducing treatment frequency, and displaying a favorable safety profile. However, their widespread and intensive use has led to a significant challenge nowadays: the development of parasite resistance. This review focuses on the critical link between drug pharmacokinetics (variation in concentration profiles and exposure over time) and pharmacodynamics (drug efficacy) and the ability of both avermectin and milbemycin MLs families to control livestock ectoparasites. This review discusses the integrated assessment of drug behavior in the host, its diffusion into target parasites, and the impact of different pharmaceutical formulations on enhancing drug delivery to infection sites. These are considered critical research/development areas to optimize the use of MLs, preventing treatment failures and finally extending the lifespan of these essential pharmaceutical ingredients. Finally, the importance of the rational use of MLs, guided by parasite epidemiology and pharmacological knowledge, is emphasized as a key strategy to preserve the antiparasitic efficacy of these still very useful molecules.
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Affiliation(s)
- A Lifschitz
- Laboratorio de Farmacología, Centro de Investigación Veterinaria de Tandil (CIVETAN), UNCPBA-CICPBA-CONICET, Campus Universitario, Tandil, Buenos Aires, Argentina; Universidad Nacional del Centro de la Provincia de Buenos Aires (UNCPBA), Facultad de Ciencias Veterinarias, Campus Universitario, Tandil, Buenos Aires, Argentina.
| | - S Nava
- Instituto de Investigación de la Cadena Láctea (IdICaL)(INTA-CONICET), Instituto Nacional de Tecnología Agropecuaria, INTA E.E.A, Rafaela, Santa Fe, Argentina
| | - V Miró
- Laboratorio de Farmacología, Centro de Investigación Veterinaria de Tandil (CIVETAN), UNCPBA-CICPBA-CONICET, Campus Universitario, Tandil, Buenos Aires, Argentina; Universidad Nacional del Centro de la Provincia de Buenos Aires (UNCPBA), Facultad de Ciencias Veterinarias, Campus Universitario, Tandil, Buenos Aires, Argentina
| | - C Canton
- Laboratorio de Farmacología, Centro de Investigación Veterinaria de Tandil (CIVETAN), UNCPBA-CICPBA-CONICET, Campus Universitario, Tandil, Buenos Aires, Argentina; Universidad Nacional del Centro de la Provincia de Buenos Aires (UNCPBA), Facultad de Ciencias Veterinarias, Campus Universitario, Tandil, Buenos Aires, Argentina
| | - L Alvarez
- Laboratorio de Farmacología, Centro de Investigación Veterinaria de Tandil (CIVETAN), UNCPBA-CICPBA-CONICET, Campus Universitario, Tandil, Buenos Aires, Argentina; Universidad Nacional del Centro de la Provincia de Buenos Aires (UNCPBA), Facultad de Ciencias Veterinarias, Campus Universitario, Tandil, Buenos Aires, Argentina
| | - C Lanusse
- Laboratorio de Farmacología, Centro de Investigación Veterinaria de Tandil (CIVETAN), UNCPBA-CICPBA-CONICET, Campus Universitario, Tandil, Buenos Aires, Argentina; Universidad Nacional del Centro de la Provincia de Buenos Aires (UNCPBA), Facultad de Ciencias Veterinarias, Campus Universitario, Tandil, Buenos Aires, Argentina
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Al-Hosary A, Radwan AM, Ahmed LS, Abdelghaffar SK, Fischer S, Nijhof AM, Clausen PH, Ahmed JS. Isolation and propagation of an Egyptian Theileria annulata infected cell line and evaluation of its use as a vaccine to protect cattle against field challenge. Sci Rep 2024; 14:8565. [PMID: 38609410 PMCID: PMC11014843 DOI: 10.1038/s41598-024-57325-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2023] [Accepted: 03/18/2024] [Indexed: 04/14/2024] Open
Abstract
Tropical theileriosis is an important protozoan tick-borne disease in cattle. Vaccination using attenuated schizont-infected cell lines is one of the methods used for controlling the disease. This study describes the production of attenuated schizont-infected cell lines from Egypt and an evaluation of its use as a vaccine to protect calves against clinical disease upon field challenge. Two groups of exotic and crossbred male calves were divided into vaccinated and control groups. The vaccinated groups were inoculated with 4 ml (1 × 106 cells/ml) of the attenuated cell line. Three weeks after vaccination, calves of both groups were transported to the New Valley Governorate (Egyptian oasis) where they were kept under field conditions and exposed to the natural Theileria annulata challenge. All animals in the control group showed severe clinical signs and died despite treatment with buparvaquone, which was administered after two days of persistent fever due to a severe drop in packed cell volume (PCV). Animals in the vaccinated group became seropositive without developing severe clinical signs other than transient fever. Post-mortem examinations revealed enlarged and fragile lymph nodes, spleen, and liver with necrosis and hemorrhages. These findings indicate that the Egyptian attenuated cell line was successful in protecting both exotic and crossbred animals against tropical theileriosis under field conditions.
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Affiliation(s)
- Amira Al-Hosary
- Department of Animal Medicine (Infectious Diseases), Faculty of Veterinary Medicine, Assiut University, Assiut, 71526, Egypt.
| | - Ahmed M Radwan
- Field Veterinarian, EL-Minia's Veterinary Directorate, EL-Minia, Egypt
| | - Laila S Ahmed
- Department of Animal Medicine (Infectious Diseases), Faculty of Veterinary Medicine, Assiut University, Assiut, 71526, Egypt
| | - Sary Kh Abdelghaffar
- Department of Pathology and Clinical Pathology, Faculty of Veterinary Medicine, Assiut University, Assiut, 71526, Egypt
- Department of Pathology and Clinical Pathology, School of Veterinary Medicine, Badr University in Assiut, Assiut, Egypt
| | - Susanne Fischer
- Institute of Infectology, Friedrich-Loeffler-Institut, Südufer 10, Insel Riems, 17943, Greifswald, Germany
| | - Ard M Nijhof
- Institute of Parasitology and Tropical Veterinary Medicine, Freie Universität Berlin, 14163, Berlin, Germany.
- Veterinary Center for Resistance Research, Freie Universität Berlin, 14163, Berlin, Germany.
| | - Peter-Henning Clausen
- Institute of Parasitology and Tropical Veterinary Medicine, Freie Universität Berlin, 14163, Berlin, Germany
| | - Jabbar S Ahmed
- Institute of Parasitology and Tropical Veterinary Medicine, Freie Universität Berlin, 14163, Berlin, Germany
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Aboelhadid SM, Ibrahium SM, Abdel-Baki AAS, Hassan KM, Arafa WM, Aboud HM, Mohy S, Al-Quraishy S, Hassan AO, Abdelgelil NH, Gadelhaq SM. An investigation of the acaricidal activity of benzyl alcohol on Rhipicephalus annulatus and Rhipicephalus sanguineus and its synergistic or antagonistic interaction with commonly used acaricides. MEDICAL AND VETERINARY ENTOMOLOGY 2024; 38:1-12. [PMID: 37815308 DOI: 10.1111/mve.12698] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Accepted: 09/25/2023] [Indexed: 10/11/2023]
Abstract
The most economically significant ectoparasites in the tropics and subtropics are ixodid ticks, especially Rhipicephalus annulatus and Rhipicephalus sanguineus. Years of extensive use of the readily available acaricides have resulted in widespread resistance development in these ticks, as well as negative environmental consequences. Benzyl alcohol (BA) has been frequently used to treat pediculosis and scabies, and it may be an effective alternative to commonly used acaricides. The main aim of the present study was to evaluate the acaricide activity of BA and its combination with the regularly used chemical acaricides against R. annulatus and R. sanguineus. Different concentrations of BA alone and in combination with deltamethrin, cypermethrin and chlorpyrifos were tested in vitro against adult and larvae of both tick species. The results showed that BA is toxic to R. annulatus and R. sanguineus larvae, with 100% larval mortality at concentrations of ≥50 mL/L, and LC50 and LC90 attained the concentrations of 19.8 and 33.8 mL/L for R. annulatus and 18.8 and 31.8 mL/L for R. sanguineus, respectively. Furthermore, BA in combination with deltamethrin, cypermethrin and chlorpyrifos exhibited synergistic factors of 2.48, 1.26 and 1.68 against R. annulatus larvae and 1.64, 11.1 and 1.14 against R. sanguineus larvae for deltamethrin + BA, cypermethrin + BA and chlorpyrifos + BA, respectively. BA induced 100% mortality in adult R. annulatus at concentrations of ≥250 mL/L with LC50 and LC90 reached the concentrations of 111 and 154 mL/L, respectively. Additionally, BA had ovicidal activity causing complete inhibition of larval hatching at 100 mL/L. The combination of BA with deltamethrin and cypermethrin increased acetylcholinesterase inhibition, whereas the combination of BA with chlorpyrifos decreased glutathione (GSH) activity and malondialdehyde levels. In the field application, the combination of BA 50 mL/L and deltamethrin (DBA) resulted in a significant reduction in the percentage of ticks by 30.9% 28 days post-treatment when compared with groups treated with deltamethrin alone. In conclusion, BA causes mortality in laboratory and field studies alone and in combination with cypermethrin or deltamethrin. BA can be used for control of ticks of different life stages, that is, eggs and larvae, through application to the ground.
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Affiliation(s)
- Shawky M Aboelhadid
- Parasitology Department, Faculty of Veterinary Medicine, Beni-Suef University, Beni Suef, Egypt
| | - Samar M Ibrahium
- Department of Parasitology, Animal Health Research Institute, Fayoum, Egypt
| | | | - Khaled M Hassan
- Department of Animal Health Research Institute, Beni Suef, Egypt
| | - Waleed M Arafa
- Parasitology Department, Faculty of Veterinary Medicine, Beni-Suef University, Beni Suef, Egypt
| | - Heba M Aboud
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Beni-Suef University, Beni Suef, Egypt
| | - Sarah Mohy
- Beni-Suef Veterinary Clinic, Beni Suef, Egypt
| | - Saleh Al-Quraishy
- Zoology Department, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Ahmed O Hassan
- Department of Medicine, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Noha H Abdelgelil
- Parasitology Department, Faculty of Medicine, Minia University, Minia, Egypt
| | - Sahar M Gadelhaq
- Parasitology Department, Faculty of Veterinary Medicine, Minia University, Minia, Egypt
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Ibrahium SM, Abdel-Baki AAS, Al-Quraishy S, Hassan KM, Hassan AO, Abdel-Rahim MM, Arafa WM, Aboelhadid SM, Gadelhaq SM. Efficacy of D-Limonene Nanoemulsion Against Rhipicephalus annulatus and Rhipicephalus sanguineus Ticks. Acta Parasitol 2024; 69:267-274. [PMID: 38015315 DOI: 10.1007/s11686-023-00734-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Accepted: 10/26/2023] [Indexed: 11/29/2023]
Abstract
PURPOSE Ticks infestation has a negative impact against human and animal health through blood sucking, transmission of blood-borne diseases and also caused economic losses. METHODS In the present study the adulticidal, ovicidal and larvicidal activity of D-limonene nanoemulsion (DLN) were evaluated against two tick species; Rhipicephalus annulatus and Rhipicephalus sanguineus. Nanoemulsion form of D-limonene was prepared, and its characteristics were evaluated using a UV spectrophotometer and zeta droplet size measurement. Acetylcholinesterase activity was determined. RESULTS The results revealed significant adulticidal effect with low LC50 and LC90 for D-limonene pure form (DL) against both adult tick spp. (R. annulatus and R. sanguineus) ((0.958 and 1.559%) and (2.26 and 3.51%), respectively). DLN LC50 and LC90 values were ((1.277 and 2.396) and (3.97 and 7.28), respectively) against R. annulatus and R. sanguineus, respectively. DL and DLN showed significant ovicidal effect against R. sanguineus at high concentrations (10 and 5%). In larval packet test, LC50 and LC90 values of DL were ((1.53 and 2.22%) and (6.81 and 12.07%), respectively) against R. annulatus and R. sanguineus, respectively, while LC50 and LC90 values of DLN were ((6.48 and 11.26%) and (7.82 and 13.59%), respectively) against R. annulatus and R. sanguineus, respectively. Significant acetylcholinesterase inhibition percentage was detected for both ticks spp. which treated by DL and DLN. CONCLUSION Pure DL is more effective than DLN form against R. annulatus and R. sanguineus.
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Affiliation(s)
- Samar M Ibrahium
- Department of Parasitology, Animal Health Research Institute, Fayum Branch, Fayum, Egypt.
| | | | - Saleh Al-Quraishy
- Zoology Department, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Khaled M Hassan
- Department of Parasitology, Animal Health Research Institute, Beni-Suef Branch, Beni-Suef, Egypt
| | - Ahmed O Hassan
- Department of Medicine, Washington University School of Medicine, St. Louis, MO, 63110, USA
| | - Mohamed Mahmoud Abdel-Rahim
- Hygiene and Zoonosis Department, Faculty of Veterinary Medicine, Beni-Suef University, Beni-Suef, 2511, Egypt
| | - Waleed M Arafa
- Parasitology Department, Faculty of Veterinary Medicine, Beni-Suef University, Beni-Suef, 62511, Egypt
| | - Shawky M Aboelhadid
- Parasitology Department, Faculty of Veterinary Medicine, Beni-Suef University, Beni-Suef, 62511, Egypt
| | - Sahar M Gadelhaq
- Parasitology Department, Faculty of Veterinary Medicine, Minia University, Minia, Egypt
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Gonzaga BCF, Barrozo MM, Coutinho AL, Pereira E Sousa LJM, Vale FL, Marreto L, Marchesini P, de Castro Rodrigues D, de Souza EDF, Sabatini GA, Costa-Júnior LM, Ferreira LL, Lopes WDZ, Monteiro C. Essential oils and isolated compounds for tick control: advances beyond the laboratory. Parasit Vectors 2023; 16:415. [PMID: 37964392 PMCID: PMC10647118 DOI: 10.1186/s13071-023-05969-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Accepted: 09/12/2023] [Indexed: 11/16/2023] Open
Abstract
BACKGROUND Tick control is a worldwide challenge due to its resistance to acaricides. Essential oils (EOs) and isolated compounds (EOCs) are potential alternatives for tick control technologies. METHODS A review with EOs and EOCs, under field and semi-field conditions, was performed based on Scopus, Web of Science and PubMed databases. Thirty-one studies published between 1991 and 2022 were selected. The search was performed using the following keywords: "essential oil" combined with "tick," "Ixodes," "Argas," "Rhipicephalus," "Amblyomma," "Hyalomma," "Dermacentor," "Haemaphysalis" and "Ornithodoros." The words "essential oil" and "tick" were searched in the singular and plural. RESULTS The number of studies increased over the years. Brazil stands out with the largest number (51.6%) of publications. The most studied tick species were Rhipicephalus microplus (48.4%), Ixodes scapularis (19.4%), Amblyomma americanum and R. sanguineus sensu lato (9.7% each). Cattle (70%) and dogs (13%) were the main target animal species. Regarding the application of EOs/EOCs formulations, 74% of the studies were conducted with topical application (spray, pour-on, foam, drop) and 26% with environmental treatment (spray). Efficacy results are difficult to evaluate because of the lack of information on the methodology and standardization. The nanotechnology and combination with synthetic acaricides were reported as an alternative to enhance the efficacy of EOs/EOCs. No adverse reactions were observed in 86.6% of the studies evaluating EOs/EOCs clinical safety. Studies regarding toxicity in non-target species and residues are scarce. CONCLUSIONS This article provides a comprehensive review on the use of EOs and EOCs to reduce tick infestations, in both the hosts and the environment. As future directions, we recommend the chemical characterization of EOs, methodology standardization, combination of EOs/EOCs with potential synergists, nanotechnology for new formulations and safety studies for target and non-target organisms, also considering the environmental friendliness.
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Affiliation(s)
- Bruno César Ferreira Gonzaga
- Programa de Pós-graduação em Ciência Animal - Escola de Veterinária e Zootecnia, Universidade Federal de Goiás, Rodovia Goiânia - Nova Veneza, Km 8, Campus Samambaia, Goiânia, GO, 74690-900, Brasil
- Faculdade de Medicina, Universidade Federal de Goiás, Campus Colemar Natal e Silva, Rua 235, s/n, Setor Leste Universitário, Goiânia, GO, 74605-050, Brasil
| | - Mayara Macêdo Barrozo
- Programa de Pós-graduação em Ciência Animal - Escola de Veterinária e Zootecnia, Universidade Federal de Goiás, Rodovia Goiânia - Nova Veneza, Km 8, Campus Samambaia, Goiânia, GO, 74690-900, Brasil
| | - Ana Lúcia Coutinho
- Programa de Pós-graduação em Ciência Animal - Escola de Veterinária e Zootecnia, Universidade Federal de Goiás, Rodovia Goiânia - Nova Veneza, Km 8, Campus Samambaia, Goiânia, GO, 74690-900, Brasil
| | - Lainny Jordana Martins Pereira E Sousa
- Programa de Pós-graduação em Ciência Animal - Escola de Veterinária e Zootecnia, Universidade Federal de Goiás, Rodovia Goiânia - Nova Veneza, Km 8, Campus Samambaia, Goiânia, GO, 74690-900, Brasil
| | - Francisca Letícia Vale
- Programa de Pós-graduação em Ciência Animal - Escola de Veterinária e Zootecnia, Universidade Federal de Goiás, Rodovia Goiânia - Nova Veneza, Km 8, Campus Samambaia, Goiânia, GO, 74690-900, Brasil
| | - Laís Marreto
- Programa de Pós-Graduação em Ciências Farmacêuticas - Faculdade de Farmácia, Universidade Federal de Goiás, Praça Universitária, no. 1166, Setor Universitário, Goiânia, GO, 74605-220, Brasil
| | - Paula Marchesini
- Programa de Pós-graduação em Ciência Animal - Escola de Veterinária e Zootecnia, Universidade Federal de Goiás, Rodovia Goiânia - Nova Veneza, Km 8, Campus Samambaia, Goiânia, GO, 74690-900, Brasil
| | | | | | | | - Lívio Martins Costa-Júnior
- Centro de Pesquisas do CCBS, Universidade Federal do Maranhão, Avenida dos Portugueses, no. 1966, São Luís, MA, 65080-805, Brasil
| | - Lorena Lopes Ferreira
- Departamento de Medicina Veterinária Preventiva - Escola de Veterinária, Universidade Federal de Minas Gerais, Av. Antônio Carlos, no. 6627, Campus Pampulha, Belo Horizonte, MG, 31270-901, Brasil
| | - Welber Daniel Zanetti Lopes
- Programa de Pós-graduação em Ciência Animal - Escola de Veterinária e Zootecnia, Universidade Federal de Goiás, Rodovia Goiânia - Nova Veneza, Km 8, Campus Samambaia, Goiânia, GO, 74690-900, Brasil
- Departamento de Biociências e Tecnologia - Instituto de Patologia Tropical e de Saúde Pública, Universidade Federal de Goiás-, Campus Colemar Natal e Silva - Rua 235, s/n - Setor Leste Universitário, Goiânia, GO, 74605-050, Brasil
| | - Caio Monteiro
- Programa de Pós-graduação em Ciência Animal - Escola de Veterinária e Zootecnia, Universidade Federal de Goiás, Rodovia Goiânia - Nova Veneza, Km 8, Campus Samambaia, Goiânia, GO, 74690-900, Brasil.
- Departamento de Biociências e Tecnologia - Instituto de Patologia Tropical e de Saúde Pública, Universidade Federal de Goiás-, Campus Colemar Natal e Silva - Rua 235, s/n - Setor Leste Universitário, Goiânia, GO, 74605-050, Brasil.
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de la Fuente J, Estrada-Peña A, Rafael M, Almazán C, Bermúdez S, Abdelbaset AE, Kasaija PD, Kabi F, Akande FA, Ajagbe DO, Bamgbose T, Ghosh S, Palavesam A, Hamid PH, Oskam CL, Egan SL, Duarte-Barbosa A, Hekimoğlu O, Szabó MPJ, Labruna MB, Dahal A. Perception of Ticks and Tick-Borne Diseases Worldwide. Pathogens 2023; 12:1258. [PMID: 37887774 PMCID: PMC10610181 DOI: 10.3390/pathogens12101258] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Revised: 10/16/2023] [Accepted: 10/18/2023] [Indexed: 10/28/2023] Open
Abstract
In this comprehensive review study, we addressed the challenge posed by ticks and tick-borne diseases (TBDs) with growing incidence affecting human and animal health worldwide. Data and perspectives were collected from different countries and regions worldwide, including America, Europe, Africa, Asia, and Oceania. The results updated the current situation with ticks and TBD and how it is perceived by society with information bias and gaps. The study reinforces the importance of multidisciplinary and international collaborations to advance in the surveillance, communication and proposed future directions to address these challenges.
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Affiliation(s)
- José de la Fuente
- SaBio, Instituto de Investigación en Recursos Cinegéticos, IREC-CSIC-UCLM-JCCM, Ronda de Toledo 12, 13005 Ciudad Real, Spain;
- Department of Veterinary Pathobiology, Center for Veterinary Health Sciences, Oklahoma State University, Stillwater, OK 74078, USA
| | - Agustín Estrada-Peña
- Department of Animal Health, Faculty of Veterinary Medicine, University of Zaragoza, 50013 Zaragoza, Spain
- Research Group in Emerging Zoonoses, Instituto Agroalimentario de Aragón-IA2, Universidad de Zaragoza-CITA, 50013 Zaragoza, Spain
| | - Marta Rafael
- SaBio, Instituto de Investigación en Recursos Cinegéticos, IREC-CSIC-UCLM-JCCM, Ronda de Toledo 12, 13005 Ciudad Real, Spain;
| | - Consuelo Almazán
- Facultad de Ciencias Naturales, Universidad Autonóma de Querétaro, Avenida de las Ciencias S/N Juriquilla, Querétaro 76230, Mexico;
| | - Sergio Bermúdez
- Medical Entomology Research Department, Gorgas Memorial Institute for Health Research, Panama City 0816-02593, Panama;
| | - Abdelbaset E. Abdelbaset
- Laboratory of Parasitology, Graduate School of Infectious Diseases, Faculty of Veterinary Medicine, Hokkaido University, Kita-18, Nishi-9, Sapporo 060-0818, Hokkaido, Japan;
| | - Paul D. Kasaija
- National Livestock Resources Research Institute (NaLIRRI/NARO), Kampala P.O. Box 5704, Uganda; (P.D.K.); (F.K.)
| | - Fredrick Kabi
- National Livestock Resources Research Institute (NaLIRRI/NARO), Kampala P.O. Box 5704, Uganda; (P.D.K.); (F.K.)
| | - Foluke Adedayo Akande
- Department of Veterinary Parasitology and Entomology, College of Veterinary Medicine, Federal University of Agriculture, Abeokuta 111101, Ogun State, Nigeria;
| | - Dorcas Oluwakemi Ajagbe
- Department of Pure and Applied Zoology, College of Biological Sciences, Federal University of Agriculture, Abeokuta 111101, Ogun State, Nigeria;
| | - Timothy Bamgbose
- Department of Biological Sciences, Microbiology Unit, Faculty of Science, Kings University, Ode-Omu City 221102, Osun State, Nigeria;
| | - Srikant Ghosh
- Entomology Laboratory, Indian Veterinary Research Institute, Izatnagar, Bareilly 243122, Uttar Pradesh, India;
- IVRI-Eastern Regional Station, 37, Belgachia Road, Kolkata 700037, West Bengal, India
| | - Azhahianambi Palavesam
- Translational Research Platform for Veterinary Biologicals, Centre for Animal Health Studies, Tamil Nadu Veterinary and Animal Sciences University, Chennai 600051, Tamil Nadu, India;
| | - Penny H. Hamid
- Department of Animal Science, Universitas Sebelas Maret, Surakarta 57126, Indonesia;
| | - Charlotte L. Oskam
- School of Medical, Molecular and Forensic Sciences, Murdoch University, Perth, WA 6150, Australia; (C.L.O.); (S.L.E.)
- Centre for One Health and Biosecurity, Harry Butler Institute, Murdoch University, Perth, WA 6150, Australia;
| | - Siobhon L. Egan
- School of Medical, Molecular and Forensic Sciences, Murdoch University, Perth, WA 6150, Australia; (C.L.O.); (S.L.E.)
- Centre for One Health and Biosecurity, Harry Butler Institute, Murdoch University, Perth, WA 6150, Australia;
| | - Amanda Duarte-Barbosa
- Centre for One Health and Biosecurity, Harry Butler Institute, Murdoch University, Perth, WA 6150, Australia;
- School of Veterinary Medicine, Murdoch University, Perth, WA 6150, Australia
| | - Olcay Hekimoğlu
- Division of Ecology, Faculty of Science, Hacettepe University, Beytepe, Ankara 06800, Turkey;
| | - Matias P. J. Szabó
- Laboratório de Ixodologia, Faculdade de Medicina Veterinária, Universidade Federal de Uberlândia, Av. Pará, 1720/Campus Umuarama-Bloco 2T, Uberlândia 38400-902, Brazil;
| | - Marcelo B. Labruna
- Faculty of Veterinary Medicine and Animal Science, University of São Paulo, Sao Paulo 05508-220, Brazil;
| | - Ananta Dahal
- Department of Microbiology and Parasitology, Faculty of Animal Science, Veterinary Science and Fisheries, Agriculture and Forestry University, Chitwan 44200, Nepal;
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Siriporn B, Juasook A, Neelapaijit N, Kaewta P, Wu Z. Detection of ivermectin and fipronil resistance in Rhipicephalus sanguineus sensu lato in Maha Sarakham, Thailand. Vet World 2023; 16:1661-1666. [PMID: 37766701 PMCID: PMC10521194 DOI: 10.14202/vetworld.2023.1661-1666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Accepted: 07/17/2023] [Indexed: 09/29/2023] Open
Abstract
Background and Aim Administration is the main strategy for controlling ectoparasites in dogs. Ivermectin and fipronil are most extensively used to prevent and treat Rhipicephalus sanguineus sensu lato infestation in dogs in Thailand. Several researchers have reported resistance to acaricides in R. sanguineus s.l. globally, but documentation of acaricide resistance in the tick population in Thailand is lacking. In this study, we investigated the status of resistance to commonly used acaricides in Thailand in R. sanguineus s.l. Materials and Methods Engorged brown dog tick females (10 tick populations) were field-collected directly from parasitized dogs in Maha Sarakham, Thailand, for toxicological bioassays with ivermectin and fipronil. Bioassays were performed in three replicates at 25°C-27°C and 80%-85% relative humidity under a 12-h/12-h photoperiod. The 50% of lethal concentration and its confidence intervals and the slope were estimated for each tick population using probit analysis. Resistance ratios (RRs) of field ticks were characterized based on the relative susceptible population of each acaricide. Results Six tick populations (P1-6) were tested for resistance to ivermectin, three of which (P2-4) exhibited low-level resistance to ivermectin (RR = 2.115-2.176). Of four tick populations (P7-10) treated with fipronil, two exhibited moderate-to-severe resistance (P7 and P9, RR = 21.684 and 4.387, respectively). All tick populations deemed resistant to acaricides had a history of exposure. Conclusion Based on RR values, four R. sanguineus s.l. tick populations from Maha Sarakham province were resistant to ivermectin and fipronil. To the best of our knowledge, this represents the first documentation of acaricide-resistant populations of R. sanguineus s.l. in Thailand, and recommendations on tick control programs must be formulated with veterinarians and pet owners to prevent the development of further resistance.
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Affiliation(s)
- Bunnada Siriporn
- Veterinary Infectious Disease Research Unit, Faculty of Veterinary Sciences, Mahasarakham University, Maha Sarakham, Thailand
| | - Amornrat Juasook
- Bioveterinary Research Unit, Faculty of Veterinary Sciences, Mahasarakham University, Maha Sarakham, Thailand
| | | | - Piyatida Kaewta
- Faculty of Veterinary Sciences, Mahasarakham University, Maha Sarakham, Thailand
| | - Zhiliang Wu
- Department of Parasitology and Infectious Disease, Graduate School of Medicine, Gifu University, Gifu, Japan
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8
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Ibrahium SM, Aboelhadid SM, Wahba AA, Farghali AA, Miller RJ, Abdel-Baki AAS, Al-Quraishy S. Preparation of geranium oil formulations effective for control of phenotypic resistant cattle tick Rhipicephalus annulatus. Sci Rep 2022; 12:11693. [PMID: 35803943 PMCID: PMC9270397 DOI: 10.1038/s41598-022-14661-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Accepted: 06/10/2022] [Indexed: 11/09/2022] Open
Abstract
The aim of the present study was to evaluate in vitro and in vivo the acaricidal activity of two forms of geranium (Pelargonium graveolens) (PG). These two forms were the P. graveolens essential oil nanoemulsion (PGN), and the PG in combination with the sesame oil (SO), PGSO). These forms were first evaluated in vitro for their adulticidal, ovicidal, and larvicidal activities against the different stages of acaricide-resistant Rhipicephalus annulatus (Say). Geranium nanoemulsion was prepared and then characterized by UV-Vis spectrophotometer, and zeta droplet size measurement. The results revealed that LC50 of the PG against the adult ticks was attained at concentration of 7.53% while it was decreased to 1.91% and 5.60% for PGSO and PGN, respectively. Also, the LC50 of PGN and PGSO were reached at concentrations of 1.688 and 0.944%, respectively against the larvae while the LC50 of the PG was reached at concentration of 3.435% for. The combination of PGN with PG exhibited non-significant ovicidal effect meanwhile PGSO showed significant ovicidal effect even at the low concentration (2.5%). The PGSO and PGN formulations were applied in a field trial to control the ticks of the naturally infested cattle. PGSO and PGN significantly reduced the tick burden to 74.83% and 87.97%, respectively at 3 weeks post-application with performance better than the deltamethrin (29.88%). In conclusion, the two PG forms can be used as suitable alternatives to control R. annulatus tick and they need further modifications for effective field application.
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Affiliation(s)
- Samar M Ibrahium
- Department of Parasitology, Animal Health Research Institute, Fayum Branch, Fayum, Egypt.
| | - Shawky M Aboelhadid
- Department of Parasitology, Faculty of Veterinary Medicine, Beni-Suef University, Beni-Suef, 52611, Egypt
| | - Ahmed A Wahba
- Department of Parasitology, Animal Health Research Institute, Dokki, Egypt
| | - Ahmed A Farghali
- Materials Science and Nanotechnology Department, Faculty of Postgraduate Studies for Advanced Sciences, Beni-Suef University, Beni-Suef, Egypt
| | - Robert J Miller
- Office of National Programs, United States Department of Agriculture Agricultural Research Service, Washington, USA
| | | | - Saleh Al-Quraishy
- Zoology Department, College of Science, King Saud University, Riyadh, Saudi Arabia
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9
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Obaid MK, Islam N, Alouffi A, Khan AZ, da Silva Vaz I, Tanaka T, Ali A. Acaricides Resistance in Ticks: Selection, Diagnosis, Mechanisms, and Mitigation. Front Cell Infect Microbiol 2022; 12:941831. [PMID: 35873149 PMCID: PMC9299439 DOI: 10.3389/fcimb.2022.941831] [Citation(s) in RCA: 31] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Accepted: 06/02/2022] [Indexed: 11/13/2022] Open
Abstract
Ticks are blood-feeding ecto-parasites that have a cosmopolitan distribution in tropical and subtropical regions of the world. Ticks cause economic losses in the form of reduced blood, meat and dairy products, as well as pathogen transmission. Different acaricides such as organochlorines, organophosphates, formamidines (e.g. amitraz), synthetic pyrethroids, macrocyclic lactones, fipronil, and fluazuron are currently used sequentially or simultaneously to control tick infestations. Most acaricide treatments now face increasingly high chances of failure, due to the resistance selection in different tick populations against these drugs. Acaricide resistance in ticks can be developed in different ways, including amino acid substitutions that result in morphological changes in the acaricide target, metabolic detoxification, and reduced acaricide entry through the outer layer of the tick body. The current literature brings a plethora of information regarding the use of different acaricides for tick control, resistance selection, analysis of mutations in target sites, and resistance mitigation. Alternatives such as synergistic use of different acaricides, plant-derived phytochemicals, fungi as biological control agents, and anti-tick vaccines have been recommended to avoid and mitigate acaricide resistance. The purpose of this review was to summarize and discuss different acaricides applied for tick control, their mechanisms of action and resistance selection, genetic polymorphisms in their target molecules, as well as the approaches used for diagnosis and mitigation of acaricide resistance, specifically in Rhipicephalus microplus ticks.
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Affiliation(s)
| | - Nabila Islam
- Department of Chemistry, Abdul Wali Khan University Mardan, Mardan, Pakistan
| | - Abdulaziz Alouffi
- King Abdulaziz City for Science and Technology, Riyadh, Saudi Arabia
| | - Alam Zeb Khan
- Department of Pediatrics, Yale School of Medicine Yale University, New Haven, CT, United States
| | - Itabajara da Silva Vaz
- Centro de Biotecnologia and Faculdade de Veterinária, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Tetsuya Tanaka
- Laboratory of Infectious Diseases, Joint Faculty of Veterinary Medicine, Kagoshima University, Kagoshima, Japan
| | - Abid Ali
- Department of Zoology, Abdul Wali Khan University Mardan, Mardan, Pakistan
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10
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Aboelhadid SM, Abdel-Tawab H, Mahran HA, Daferera D, Sokmen A, Al-Quraishy S, Abdel-Baki AAS. Synergistic larvicidal and repellent effects of essential oils of three Origanum species on Rhipicephalus annulatus tick. EXPERIMENTAL & APPLIED ACAROLOGY 2022; 87:273-287. [PMID: 35933564 DOI: 10.1007/s10493-022-00737-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Accepted: 07/20/2022] [Indexed: 06/15/2023]
Abstract
Ticks are of great economic importance worldwide, both because they represent major obstacles to livestock productivity and because of their ability to transmit diseases to humans and animals. Although synthetic acaricides are the most common method for tick control, their overuse has led to the development of resistance as well as unacceptable residual levels in animal products and in the environment in general. There is therefore an urgent need to identify alternative treatments. Among such alternative approaches for tick control is plant essential oil (EO) therapy. In the present study, we investigated the synergistic effect of EOs of three oregano species-Origanum onites, O. majorana and O. minutiflorum-against Rhipicephalus annulatus larvae. Gas chromatography-mass spectrometry profiles of the three EOs revealed that carvacrol was their major component, with a concentration of 86.2% in O. majorana, 79.1% in O. minutiflorum and 77.4% in O. onites. The results of larvicidal assays revealed that the doses that lead to the death of 50% of the ticks (LC50) were 22.99, 25.08 and 27.06 µL/mL for O. majorana, O. minutiflorum and O. onites EOs, respectively, whereas the doses that lead to the death of 99% (LC99) were 41.26, 43.62 and 48.96 µL/mL. In addition, the LC50 and LC99 of the three oils combined was lower (viz., 4.01 and 6.97 µL/mL) than that of each oil alone. The tested EOs were also able to repel larvae of R. annulatus to varying degrees, with O. onites oil exhibiting the greatest repellent effect, as shown by the lowest RC50 dose, followed by O. minutiflorum and O. majorana. Interestingly, this means that the oil that was least effective in killing the larvae was the most effective in repelling them. The calculated synergistic factor of any combination was higher than 1 which means that combinations have a synergistic effect. In conclusion, the combination of all three oils showed higher toxic and repellent activities than either oil separately or combinations of any two oils, suggesting synergistic effects with low doses. Further studies including field trials and the establishment of the mode of action and side effects are urgently needed to expand on these findings, and other tick stages such as adults should also be tested.
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Affiliation(s)
- Shawky M Aboelhadid
- Parasitology Department, Faculty of Veterinary Medicine, Beni-Suef University, Beni Suef, 62511, Egypt.
| | - Heba Abdel-Tawab
- Zoology Department, Faculty of Science, Beni-Suef University, Beni Suef, Egypt
| | - Hesham A Mahran
- Department of Hygiene, Management and Zoonoses, Faculty of Veterinary Medicine, Beni-Suef University, Beni Suef, Egypt
| | - Dimitra Daferera
- Laboratory of General Chemistry, Agricultural University of Athens, Iera Odos 75, 118 55, Athens, Greece
| | - Atalay Sokmen
- Department of Plant Production and Technologies, Faculty of Agriculture and Natural Sciences, Konya Food and Agriculture University, 42080, Konya, Turkey
| | - Saleh Al-Quraishy
- Zoology Department, College of Science, King Saud University, Riyadh, Saudi Arabia
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11
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Baz MM, Khater HF, Baeshen RS, Selim A, Shaheen ES, El-Sayed YA, Salama SA, Hegazy MM. Novel Pesticidal Efficacy of Araucaria heterophylla and Commiphora molmol Extracts against Camel and Cattle Blood-Sucking Ectoparasites. PLANTS 2022; 11:plants11131682. [PMID: 35807634 PMCID: PMC9269226 DOI: 10.3390/plants11131682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/04/2022] [Revised: 06/20/2022] [Accepted: 06/21/2022] [Indexed: 11/16/2022]
Abstract
Botanical insecticides are promising pest control agents. This research investigated the novel pesticidal efficacy of Araucaria heterophylla and Commiphora molmol extracts against four ectoparasites through treated envelopes. Seven days post-treatment (PT) with 25 mg/mL of C. molmol and A. heterophylla, complete mortality of the camel tick, Hyalomma dromedarii and cattle tick, Rhipicephalus (Boophilus) annulatus were reached. Against H. dromedarii, the median lethal concentrations (LC50s) of the methanol extracts were 1.13 and 1.04 mg/mL and those of the hexane extracts were 1.47 and 1.38 mg/mL, respectively. The LC50 values of methanol and hexane extracts against R. annulatus were 1.09 and 1.41 plus 1.55 and 1.08 mg/mL, respectively. Seven days PT with 12.5 mg/mL, extracts completely controlled Haematopinus eurysternus and Hippobosca maculata; LC50 of Ha. eurysternus were 0.56 and 0.62 mg/mL for methanol extracts and 0.55 and 1.00 mg/mL for hexane extracts, respectively, whereas those of Hi. maculata were 0.67 and 0.78 mg/mL for methanol extract and 0.68 and 0.32 mg/mL, respectively, for hexane extracts. C. molmol extracts contained sesquiterpene, fatty acid esters and phenols, whereas those of A. heterophylla possessed monoterpene, sesquiterpene, terpene alcohols, fatty acid, and phenols. Consequently, methanol extracts of C. molmol and A. heterophylla were recommended as ecofriendly pesticides.
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Affiliation(s)
- Mohamed M. Baz
- Department of Entomology, Faculty of Science, Benha University, Benha 13518, Egypt; (Y.A.E.-S.); (M.M.H.)
- Correspondence: ; Tel.: +20-01063070572
| | - Hanem F. Khater
- Parasitology Department, Faculty of Veterinary Medicine, Benha University, Toukh 13736, Egypt;
| | - Rowida S. Baeshen
- Department of Biology, Faculty of Science, University of Tabuk, Tabuk 71421, Saudi Arabia;
| | - Abdelfattah Selim
- Department of Animal Medicine (Infectious Diseases), Faculty of Veterinary Medicine, Benha University, Toukh 13736, Egypt;
| | - Emad S. Shaheen
- Medical Research Centre, Jazan University, Jazan 45142, Saudi Arabia;
| | - Yasser A. El-Sayed
- Department of Entomology, Faculty of Science, Benha University, Benha 13518, Egypt; (Y.A.E.-S.); (M.M.H.)
| | - Salama A. Salama
- Department of Biology, Faculty of Science, Jazan University, Jazan 45142, Saudi Arabia;
- Department of Zoology, Faculty of Science, Damanhour University, Damanhour 22511, Egypt
| | - Maysa M. Hegazy
- Department of Entomology, Faculty of Science, Benha University, Benha 13518, Egypt; (Y.A.E.-S.); (M.M.H.)
- Department of Biology, Faculty of Science, Jazan University, Jazan 45142, Saudi Arabia;
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12
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Githaka NW, Kanduma EG, Wieland B, Darghouth MA, Bishop RP. Acaricide resistance in livestock ticks infesting cattle in Africa: Current status and potential mitigation strategies. CURRENT RESEARCH IN PARASITOLOGY & VECTOR-BORNE DISEASES 2022; 2:100090. [PMID: 35664895 PMCID: PMC9160480 DOI: 10.1016/j.crpvbd.2022.100090] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Revised: 04/10/2022] [Accepted: 05/07/2022] [Indexed: 11/19/2022]
Abstract
In many African countries, tick control has recently been the responsibility of resource-poor farmers rather than central government veterinary departments. This has led to an increase in acaricide resistance, threatening the welfare of livestock farmers in sub-Saharan Africa. Resistance has evolved to the three classes of acaricides used most extensively in the continent, namely fourth-generation synthetic pyrethroids (SP), organophosphates (OP) and amidines (AM), in virtually all countries in which they have been deployed across the globe. Most current data are derived from research in Australia and Latin America, with the majority of studies on acaricide resistance in Africa performed in South Africa. There is also limited recent research from West Africa and Uganda. These studies confirm that acaricide resistance in cattle ticks is a major problem in Africa. Resistance is most frequently directly assayed in ticks using the larval packet test (LPT) that is endorsed by FAO, but such tests require a specialist tick-rearing laboratory and are relatively time consuming. To date they have only been used on a limited scale in Africa and resistance is often still inferred from tick numbers on animals. Rapid tests for resistance in ticks, would be better than the LPT and are theoretically possible to develop. However, these are not yet available. Resistance can be mitigated through integrated control strategies, comprising a combination of methods, including acaricide class rotation or co-formulations, ethnoveterinary practices, vaccination against ticks and modified land management use by cattle, with the goal of minimising the number of acaricide applications required per year. There are data suggesting that small-scale farmers in Africa are often unaware of the chemical differences between different acaricide brands and use these products at concentrations other than those recommended by the manufacturers, or in incorrect rotations or combinations of the different classes of chemicals on the market. There is an urgent need for a more evidence-based approach to acaricide usage in small-scale livestock systems in Africa, including direct measurements of resistance levels, combined with better education of farmers regarding acaricide products and how they should be deployed for control of livestock ticks. Resistance to all fourth-generation acaricides is widespread in cattle ticks and is a major problem in Africa. Acaricide resistance monitoring through the larval packet tests is mostly absent. The integration of ethnoveterinary products with synthetic acaricides is a promising strategy. Strengthening laboratory testing and farmersʼ education can lead to rational acaricide use.
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Affiliation(s)
- Naftaly W. Githaka
- International Livestock Research Institute (ILRI), P.O. Box 30709-00100, Nairobi, Kenya
- Corresponding author. Twitter icon
| | - Esther G. Kanduma
- Department of Biochemistry, Faculty of Science and Technology, University of Nairobi, P.O. Box 30197-00100, Nairobi, Kenya
| | - Barbara Wieland
- International Livestock Research Institute (ILRI), P.O. Box 30709-00100, Nairobi, Kenya
| | - Mohamed A. Darghouth
- Laboratoire de Parasitologie, Ecole Nationale de Médecine Vétérinaire, Institution de la Recherche et de lʼEnseignement Supérieur Agricoles and La Manouba University, 2020, Sidi Thabet, Tunisia
| | - Richard P. Bishop
- Department of Veterinary Microbiology and Pathology, Washington State University, Pullman, WA, USA
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13
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Asadollahi Z, Nabian S, Taheri M, Ebrahimzadeh E. Introducing a new anti- Rhipicephalus (Boophilus) microplus tick recombinant vaccine candidate using cathepsin and tropomyosin multi-epitope gene. VETERINARY RESEARCH FORUM : AN INTERNATIONAL QUARTERLY JOURNAL 2021; 12:445-450. [PMID: 35529827 PMCID: PMC9010844 DOI: 10.30466/vrf.2021.113699.2704] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/02/2019] [Accepted: 05/08/2021] [Indexed: 11/02/2022]
Abstract
Rhipicephalus (Boophilus) spp. are important vectors for Babesia and Anaplasma species causing severe economic losses in livestock. Chemical compounds are commonly used to control tick infestation; however, acaricides resistance in tick has led to move toward alternative strategies such as vaccination. In this study, we introduced a vaccine candidate, namely CaTro against Rh. microplus tick composing of immunogenic B-cell epitopes derived from Rh. microplus cathepsin L and tropomyosin proteins. To evaluate this vaccine candidate, firstly the CaTro sequence was inserted into the prokaryotic expression vector and the recombinant protein CaTro was expressed in Bl21 bacteria. Afterward, purification was performed by Ni-NTA affinity chromatography. The quality of purified recombinant CaTro was also analyzed using sodium dodecyl sulfate-gel electrophoresis and western blotting. Moreover, to evaluate the induction of immune response, the rabbits were immunized with purified recombinant protein combined with Freund's adjuvant. The findings of this study revealed molecular weight of expressed protein (CaTro) as 38.00 kDa. Furthermore, anti-CaTro antibody was detected in immunized rabbit's sera through dot blotting; while, there was not any response to the control rabbit's sera. The results suggest that CaTro is a potential candidate to develop an anti- Rh. microplus tick.
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Affiliation(s)
- Zahra Asadollahi
- Department of Parasitology, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran
| | - Sedigheh Nabian
- Department of Parasitology, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran; ,Center of Tick and Tick-borne Disease, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran; ,Correspondence Sedigheh Nabian. DVM, PhD, Department of Parasitology, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran
- Center of Tick and Tick-borne Disease, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran . E-mail:
| | - Mohammad Taheri
- Rastegar Reference Laboratory, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran
| | - Elaheh Ebrahimzadeh
- Department of Pathobiology, Faculty of Veterinary Medicine, Ferdowsi University of Mashhad, Mashhad, Iran
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14
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Okely M, Anan R, Gad-Allah S, Samy AM. Hard ticks (Acari: Ixodidae) infesting domestic animals in Egypt: diagnostic characters and a taxonomic key to the collected species. MEDICAL AND VETERINARY ENTOMOLOGY 2021; 35:333-351. [PMID: 33452827 DOI: 10.1111/mve.12502] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Revised: 11/20/2020] [Accepted: 12/10/2020] [Indexed: 05/10/2023]
Abstract
Ticks are important vectors of emerging health problems in humans and animals. We conducted several field surveillances to investigate the fauna of hard ticks on domestic animals in seven governorates of Egypt during 2018-2019. A total of 3265 individual tick specimens were collected and identified to the species level; the specimens belong to 11 species within three genera (Amblyomma, Hyalomma, and Rhipicephalus). Tick infestation was highest in dromedary camels (70%), followed by dogs (52.5%), cattle (50%), buffaloes (38%), and horses (12%). Ten species were collected from dromedary camels, 2 from cattle, and one species from dogs, buffaloes, and horses. Diagnostic characters with high-quality photographic images of the 11 tick species were provided. New measurements of the body regions such as spiracles and body grooves were also obtained to provide further details on morphological variations among the diverse tick species. This study provided detailed descriptions of the genital apertures of five Hyalomma species. Morphological variations of male Hyalomma impeltatum, and genital apertures of female Hyalomma dromedarii and Hyalomma excavatum were also examined in this study. Finally, we provided additional details on local geographic distributions, hosts, endemicity status, and disease relationships of the eleven tick species.
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Affiliation(s)
- M Okely
- Entomology Department, Faculty of Science, Ain Shams University, Abbassia, Cairo, Egypt
| | - R Anan
- Entomology Department, Faculty of Science, Ain Shams University, Abbassia, Cairo, Egypt
| | - S Gad-Allah
- Entomology Department, Faculty of Science, Ain Shams University, Abbassia, Cairo, Egypt
| | - A M Samy
- Entomology Department, Faculty of Science, Ain Shams University, Abbassia, Cairo, Egypt
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15
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Shyma KP, Gupta JP, Parsani HR, Ankuya KJ, Singh V. Ivermectin resistance in the multi-host tick Hyalomma anatolicum (Acari: Ixodidae) in India. Ticks Tick Borne Dis 2021; 12:101791. [PMID: 34329928 DOI: 10.1016/j.ttbdis.2021.101791] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 07/02/2021] [Accepted: 07/02/2021] [Indexed: 11/18/2022]
Abstract
The multi-host tick, Hyalomma anatolicum is a widely distributed vector of many pathogens of veterinary and public health importance. Ivermectin (IVM), as an alternative to control pyrethroid-resistant ticks, has been used extensively for the past 4-6 years in tropical and sub-tropical countries including India resulting in declining tick control efficacy. The present study used adult immersion test (AIT) to examine the resistance status of H. anatolicum collected from three districts in the Indian state of Gujarat against ivermectin. Probit analysis was used for calculation of concentration-mortality regressions; concentrations required for 50% mortality (LC50) and 95% mortality (LC95), along with confidence intervals; slope of mortality; % inhibition of oviposition; and discriminating concentration (DC). The calculated LC50 and LC95 estimates were utilized to determine resistance ratios (RR50, RR95) and the resistance levels (RL) of the field ticks compared to the susceptible population. The DC (2 x LC95) for IVM was calculated as 84.48 ppm, using susceptible H. anatolicum ticks (KHD). Lower estimates of the coefficient of non-determination (1-R2) for AIT ranged from 0.06 to 0.27, and the range of RR50 and RR95 values against IVM was estimated to be from 1.43 to 52.06 and 1.14 to 71.99, respectively, which indicated a varying degree of resistance among the field tick populations. Based on RR50 values, tick populations from Danta and Palanpur showed resistance level IV and II, respectively. Another four populations (Vadgam, Kankrej, Saraswati and Sidhpur) were classified as having level I resistance status against IVM. To our knowledge, this is the first report of ivermectin resistance in H. anatolicum from Gujarat, India.
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Affiliation(s)
- K P Shyma
- Department of Veterinary Parasitology, College of Veterinary Science & AH, Kamdhenu University (Erstwhile SDAU), Sardarkrushinagar, 385506 Gujarat (India).
| | - Jay Prakash Gupta
- Department of Animal Genetics & Breeding, College of Veterinary Science & AH, Kamdhenu University (Erstwhile SDAU), Sardarkrushinagar, 385506 Gujarat (India).
| | - H R Parsani
- Department of Veterinary Parasitology, College of Veterinary Science & AH, Kamdhenu University (Erstwhile SDAU), Sardarkrushinagar, 385506 Gujarat (India).
| | - K J Ankuya
- Department of Livestock Production & Management, College of Veterinary Science & AH, Kamdhenu University (Erstwhile SDAU), Sardarkrushinagar, 385506 Gujarat (India).
| | - Veer Singh
- Department of Veterinary Parasitology, College of Veterinary Science & AH, Kamdhenu University (Erstwhile SDAU), Sardarkrushinagar, 385506 Gujarat (India); Director Resident Instruction-cum-Dean, Post Graduate Studies, BASU, Patna, 800 014, Bihar (India).
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16
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Analysis of Genetic Diversity in Indian Isolates of Rhipicephalus microplus Based on Bm86 Gene Sequence. Vaccines (Basel) 2021; 9:vaccines9030194. [PMID: 33652549 PMCID: PMC7996562 DOI: 10.3390/vaccines9030194] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Revised: 01/21/2021] [Accepted: 01/26/2021] [Indexed: 11/16/2022] Open
Abstract
The control of cattle tick, Rhipicephalus microplus, is focused on repeated use of acaricides. However, due to growing acaricide resistance and residues problem, immunization of animals along with limited use of effective acaricides is considered a suitable option for the control of tick infestations. To date, more than fifty vaccine candidates have been identified and tested worldwide, but two vaccines were developed using the extensively studied candidate, Bm86. The main reason for limited vaccine commercialization in other countries is genetic diversity in the Bm86 gene leading to considerable variation in vaccine efficacy. India, with 193.46 million cattle population distributed in 28 states and 9 union territories, is suffering from multiple tick infestation dominated by R. microplus. As R. microplus has developed multi-acaricide resistance, an efficacious vaccine may provide a sustainable intervention for tick control. Preliminary experiments revealed that the presently available commercial vaccine based on the BM86 gene is not efficacious against Indian strain. In concert with the principle of reverse vaccinology, genetic polymorphism of the Bm86 gene within Indian isolates of R. microplus was studied. A 578 bp conserved nucleotide sequences of Bm86 from 65 R. microplus isolates collected from 9 Indian states was sequenced and revealed 95.6-99.8% and 93.2-99.5% identity in nucleotides and amino acids sequences, respectively. The identities of nucleotides and deduced amino acids were 94.7-99.8% and 91.8-99.5%, respectively, between full-length sequence (orf) of the Bm86 gene of IVRI-I strain and published sequences of vaccine strains. Six nucleotides deletion were observed in Indian Bm86 sequences. Four B-cell epitopes (D519-K554, H563-Q587, C598-T606, T609-K623), which are present in the conserved region of the IVRI-I Bm86 sequence, were selected. The results confirm that the use of available commercial Bm86 vaccines is not a suitable option against Indian isolates of R. microplus. A country-specific multi-epitope Bm86 vaccine consisting of four specific B-cell epitopes along with candidate molecules, subolesin and tropomyosin in chimeric/co-immunization format may provide a sustainable option for implementation in an integrated tick management system.
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Arafa WM, Aboelhadid SM, Moawad A, Shokeir KM, Ahmed O, Pérez de León AA. Control of Rhipicephalus annulatus resistant to deltamethrin by spraying infested cattle with synergistic eucalyptus essential oil-thymol-deltamethrin combination. Vet Parasitol 2021; 290:109346. [PMID: 33418076 DOI: 10.1016/j.vetpar.2021.109346] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 12/02/2020] [Accepted: 12/27/2020] [Indexed: 02/07/2023]
Abstract
The current study investigated the synergistic effect of combinations containing deltamethrin (D), Eucalyptus essential oil (E), and the thyme essential oil component thymol (T), against a field population of Rhipicephalus annulatus in Egypt that was characterized to be resistant to D. Solutions of T, E, or TE at concentrations of 1.25-5% were combined with 5% deltamethrin at different dilutions (0.25-2 mL/L). Results of the adult immersion test used to estimate the in vitro acaricidal activity of these combinations at 5% yielded LC50 values for D, E-D, T-D, and TE-D of 3.87 mL/L, 3.89 mL/L, 0.14 mL/L, and 0.05 mL/L, respectively. Biochemical analyses using whole-body homogenate of ticks from the in vitro tests revealed that the lowest acetylcholinesterase and glutathione peroxidase activity, and the maximum lipid peroxidation were recorded in ticks treated with 5% TE-D. Glutathione content significantly decreased (p ≤ 0.05) in all treated ticks. Three groups, each containing five cross breed cattle naturally infested with R. annulatus from the same area where resistance to D was detected, were sprayed twice at two-week intervals using 1 mL/L of 5% solutions of D, T-D, or TE-D. Overall efficacy of the D, T-D, and TE-D sprays by day 30 post-treatment was 21.6, 88.3, and 95 %, respectively. Ticks collected from infested cattle three days after treatment with the D spray deposited egg masses that were able to hatch, deposited small masses of eggs unable to hatch when exposed to the T-D spray, and laid few eggs that didn't hatch when sprayed with the TE-D combination. Values for liver and kidney function parameters were comparable in cattle before and after treatment with the combination sprays tested. The TE-D spray overcame the insensitivity to D of this R. annulatus population in Egypt, which also highlighted the significant synergistic effect of thymol on the acaricidal activity of deltamethrin observed in vitro. Acaricidal activity of the TE-D combination apparently has deleterious effects on multiple tick systems involving inhibition of acetylcholinesterase, increased lipid peroxidation, and oxidative stress. These findings document that combinations of natural and synthetic products can be part of integrated management solutions to the problem with widespread resistance to pyrethroids like deltamethrin in populations of cattle ticks, including R. annulatus, around the world.
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Affiliation(s)
- Waleed M Arafa
- Department of Parasitology, Faculty of Veterinary Medicine, Beni-Suef University, Beni-Suef, 62511, Egypt.
| | - Shawky M Aboelhadid
- Department of Parasitology, Faculty of Veterinary Medicine, Beni-Suef University, Beni-Suef, 62511, Egypt.
| | - Abeer Moawad
- Pharmacognosy Department, Faculty of Pharmacy, Beni-Suef University, Beni-Suef, 62514, Egypt
| | | | - Osama Ahmed
- Physiology Division, Zoology Department, Faculty of Sciences, Beni-Suef University, Beni-Suef, 62521, Egypt
| | - Adalberto A Pérez de León
- USDA, Agricultural Research Service, Knipling-Bushland U.S. Livestock Insects Research Laboratory and Veterinary Pest Genomics Center, 2700 Fredericksburg Rd., Kerrville, Texas, 78028, USA
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Kamran K, Ali A, Villagra CA, Bazai ZA, Iqbal A, Sajid MS. Hyalomma anatolicum resistance against ivermectin and fipronil is associated with indiscriminate use of acaricides in southwestern Balochistan, Pakistan. Parasitol Res 2020; 120:15-25. [PMID: 33225403 DOI: 10.1007/s00436-020-06981-0] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Accepted: 11/17/2020] [Indexed: 11/26/2022]
Abstract
Ivermectin and fipronil have been used regularly to control the hard tick Hyalomma anatolicum (Acari: Ixodidae) in domestic ruminants for more than a half-decade in Balochistan, Pakistan. Inappropriate and indiscriminate use of these acaricides has resulted in the development of resistances in tick species. In this work, acaricides (ivermectin and fipronil) resistance was evaluated in H. anatolicum through in vitro and in vivo bioassays in a horse farm of Quetta, Balochistan province, Pakistan. A participatory epidemiological survey was conducted to assess potential risk factors associated with the development of acaricide resistance in H. anatolicum. The results of the epidemiological survey revealed that the horse keepers did not follow the manufacturer's instructions for the use of acaricides and applied indiscriminate doses of acaricides. The results of in vitro bioassays (adult immersion test and larval immersion test) showed that fipronil and ivermectin have protective efficacy against H. anatolicum. The results of in vivo bioassay (adult-tick mortality assay) revealed that fipronil had a higher efficacy (78.16%) than ivermectin (49.94%). More than 80% of tick mortality was not achieved in any bioassays, even for the highest acaricide concentration (100 ppm), which suggests the development of acaricide resistance against fipronil and ivermectin. This study highlights the urgency to implement a country-wide awareness about resistance monitoring and effective tick control. Graphical abstract.
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Affiliation(s)
- Kashif Kamran
- Department of Zoology, University of Balochistan, Quetta, Pakistan
| | - Abid Ali
- Department of Zoology, Abdul Wali Khan University Mardan, Mardan, Khyber Pakhtunkhwa, Pakistan.
| | - Cristian A Villagra
- Instituto de Entomología, Universidad Metropolitana de Ciencias de la Educación, Santiago, Chile
| | | | - Asim Iqbal
- Department of Zoology, University of Balochistan, Quetta, Pakistan
| | - Muhammad Sohail Sajid
- Department of Parasitology, University of Agriculture, Faisalabad, Pakistan
- Center for Advanced Studies in Agriculture and Food Security (CAS-AFS), University of Agriculture, Faisalabad, Pakistan
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Quadros DG, Johnson TL, Whitney TR, Oliver JD, Oliva Chávez AS. Plant-Derived Natural Compounds for Tick Pest Control in Livestock and Wildlife: Pragmatism or Utopia? INSECTS 2020; 11:insects11080490. [PMID: 32752256 PMCID: PMC7469192 DOI: 10.3390/insects11080490] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Revised: 07/22/2020] [Accepted: 07/29/2020] [Indexed: 12/17/2022]
Abstract
Ticks and tick-borne diseases are a significant economic hindrance for livestock production and a menace to public health. The expansion of tick populations into new areas, the occurrence of acaricide resistance to synthetic chemical treatments, the potentially toxic contamination of food supplies, and the difficulty of applying chemical control in wild-animal populations have created greater interest in developing new tick control alternatives. Plant compounds represent a promising avenue for the discovery of such alternatives. Several plant extracts and secondary metabolites have repellent and acaricidal effects. However, very little is known about their mode of action, and their commercialization is faced with multiple hurdles, from the determination of an adequate formulation to field validation and public availability. Further, the applicability of these compounds to control ticks in wild-animal populations is restrained by inadequate delivery systems that cannot guarantee accurate dosage delivery at the right time to the target animal populations. More work, financial support, and collaboration with regulatory authorities, research groups, and private companies are needed to overcome these obstacles. Here, we review the advancements on known plant-derived natural compounds with acaricidal potential and discuss the road ahead toward the implementation of organic control in managing ticks and tick-borne diseases.
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Affiliation(s)
- Danilo G. Quadros
- Texas A&M AgriLife Research, San Angelo, TX 76901, USA; (D.G.Q.); (T.R.W.)
| | - Tammi L. Johnson
- Department of Rangelands, Wildlife and Fisheries Management, Texas A&M AgriLife Research, Texas A&M University, Uvalde, TX 78801, USA;
| | - Travis R. Whitney
- Texas A&M AgriLife Research, San Angelo, TX 76901, USA; (D.G.Q.); (T.R.W.)
| | - Jonathan D. Oliver
- Environmental Health Sciences, School of Public Health, University of Minnesota, Minneapolis, MN 55455, USA;
| | - Adela S. Oliva Chávez
- Department of Entomology, Texas A&M University, College Station, TX 77843, USA
- Correspondence: ; Tel.: +1-979-845-1946
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Arafa WM, Klafke GM, Tidwell JP, de León AAP, Esteve-Gassent M. Detection of single nucleotide polymorphism in the para-sodium channel gene of Rhipicephalus annulatus populations from Egypt resistant to deltamethrin. Ticks Tick Borne Dis 2020; 11:101488. [PMID: 32723654 DOI: 10.1016/j.ttbdis.2020.101488] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2019] [Revised: 05/25/2020] [Accepted: 06/01/2020] [Indexed: 02/07/2023]
Abstract
Rhipicephalus annulatus field populations collected from small cattle farms in Beni-Suef province in Egypt were evaluated for deltamethrin resistance by toxicological in vitro bioassays (adult immersion test-AIT and larval packet test-LPT). Moreover, a quantitative PCR high resolution melting (PCR-HRM) technique was used to detect nucleotide substitutions in the voltage-gated sodium channel (Na-channel) gene. By the in vitro bioassays, the examined ticks were phenotypically categorized as deltamethrin susceptible (populations El-Wasta - A, and El-Hakamna - C) or resistant (populations El-Wasta - B, El-Hakamna - D, EL-Halabia - E, and Kom-abokhalad - F). Based on LPT findings, the phenotypic resistant populations were found to have a resistance ratio between 6.5 - 10.8. The PCR-HRM genotyping of the ticks showed variable melting curves among the populations in domain II of the Na-channel gene. Analysis of the curves showed the presence of wild type, mutant homozygous, and mutant heterozygous tick individuals. By sequencing the PCR amplified fragments, the C190A mutation was the only detected nucleotide polymorphism of domain II among the phenotypically resistant populations, which was present in 39.5 % (34/86) of the ticks tested. On the other hand, the phenotypically susceptible populations A and C did not show C190A mutant homozygous (RR) individuals. Meanwhile, in domain III all of the examined populations revealed melting curves like the wild type. Furthermore, the sequence analysis of these populations confirmed the absence of SNPs in domain III. The C190A single point mutation was detected for the first time in domain II of the Na-channel gene of deltamethrin-resistant R. annulatus in Egypt using PCR-HRM. Screening for efficacy of chemical compounds used by farmers to control ticks on cattle should be considered as part of animal health programs to manage the emerging resistance to acaricides in R. annulatus populations.
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Affiliation(s)
- Waleed M Arafa
- Department of Parasitology, Faculty of Veterinary Medicine, Beni-Suef University, Beni-Suef, 62512, Egypt.
| | - Guilherme M Klafke
- United States Department of Agriculture, Agricultural Research Service, Cattle Fever Tick Research Laboratory, 22675 North Moorefield Rd. MAB 6419, Edinburg, TX, 78541, USA; Centro de Pesquisa em Saúde Animal - IPVDF, Secretaria da Agricultura, Pecuária e Desenvolvimento Rural, Estrada do Conde, 6000, Eldorado do Sul, RS, 92990-000, Brazil
| | - Jason P Tidwell
- United States Department of Agriculture, Agricultural Research Service, Cattle Fever Tick Research Laboratory, 22675 North Moorefield Rd. MAB 6419, Edinburg, TX, 78541, USA
| | - Adalberto A Pérez de León
- United States Department of Agriculture, Agricultural Research Service, Knipling-Bushland U.S. Livestock Insects Research Laboratory and Veterinary Pest Genomics Center, 2700 Fredericksburg Road, Kerrville, TX, 78028, USA
| | - Maria Esteve-Gassent
- Department of Veterinary Pathobiology, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX, 77843-4467, USA
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