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Chaisri W, Aneknan T, Khonkarn R, Tiwananthagorn S, Suriyasathaporn W, Pangprasit N, Saipinta D, Saengsitthisak B, Pikulkaew S. Self-emulsifying drug delivery systems (SEDDS) containing Cymbopogon citratus essential oil: Enhancing the stability and acaricide efficacy against Rhipicephalus (Boophilus) microplus. Vet Parasitol 2024; 328:110171. [PMID: 38552269 DOI: 10.1016/j.vetpar.2024.110171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2023] [Revised: 03/11/2024] [Accepted: 03/13/2024] [Indexed: 05/18/2024]
Abstract
The objectives of this study were to develop a self-emulsifying drug delivery system (SEDDS) to enhance the stability and efficacy of Cymbopogon citratus essential oil or lemongrass oil (LEO) against cattle tick larvae and engorged females. The system with the highest oil loading in SEDDS was composed of LEO (23.33%w/w), Tween 80: SGKH 4000 in a 2:1 ratio as surfactant (66.67%w/w), and propylene glycol as co-surfactant (10%w/w). The selected SEDDS-LEO has a particle size of 18.78 nm with a narrow size distribution (polydispersity index of 0.27). Notably, the stability of SEDDS was superior to that of the original oil, both during long-term storage and under accelerated conditions. SEDDS-LEO at oil concentrations ranging from 1.458% to 5.833% w/v showed a significantly higher percentage of egg-laying reduction against adult ticks compared with the original oil at the same concentrations (p < 0.05). Furthermore, SEDDS-LEO demonstrated greater larvicidal efficacy than the original oil, with lower LC50 and LC90 values of 0.91 mg/mL and 1.20 mg/mL, respectively, whereas the original oil's LC50 and LC90 values were 1.17 mg/mL and 1.74 mg/mL, respectively. Our findings indicate that SEDDS-LEO is a promising candidate for use as an acaricide in the control of tick populations in dairy cattle.
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Affiliation(s)
- Wasana Chaisri
- Research Center of Producing and Development of Products and Innovations for Animal Health, Chiang Mai Univesity, Chiang Mai 50100Thailand; Faculty of Veterinary Medicine, Chiang Mai University, Chiang Mai 50100, Thailand
| | - Tanat Aneknan
- Faculty of Veterinary Medicine, Chiang Mai University, Chiang Mai 50100, Thailand
| | - Ruttiros Khonkarn
- Research Center of Producing and Development of Products and Innovations for Animal Health, Chiang Mai Univesity, Chiang Mai 50100Thailand; Department of Pharmaceutical Sciences, Faculty of Pharmacy, Chiang Mai University, Chiang Mai 50200, Thailand
| | | | - Witaya Suriyasathaporn
- Research Center of Producing and Development of Products and Innovations for Animal Health, Chiang Mai Univesity, Chiang Mai 50100Thailand; Faculty of Veterinary Medicine, Chiang Mai University, Chiang Mai 50100, Thailand; Cambodia Campus, Asian Satellite Campuses Institute, Nagoya University, Nagoya 464-8601, Japan
| | - Noppason Pangprasit
- Department of Livestock Clinics, Akkhraratchakumari Veterinary College, Walailak University, Nakhon Si Thamarat 80160, Thailand
| | - Duanghathai Saipinta
- Faculty of Veterinary Medicine, Chiang Mai University, Chiang Mai 50100, Thailand
| | | | - Surachai Pikulkaew
- Research Center of Producing and Development of Products and Innovations for Animal Health, Chiang Mai Univesity, Chiang Mai 50100Thailand; Faculty of Veterinary Medicine, Chiang Mai University, Chiang Mai 50100, Thailand.
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Pérez-Otáñez X, Rodríguez-Hidalgo R, Enríquez S, Celi-Erazo M, Benítez W, Saegerman C, Vaca-Moyano F, Ron-Garrido L, Vanwambeke SO. High-resolution prediction models for Rhipicephalus microplus and Amblyomma cajennense s.l. ticks affecting cattle and their spatial distribution in continental Ecuador using bioclimatic factors. Exp Appl Acarol 2024; 92:439-462. [PMID: 38388882 PMCID: PMC11035444 DOI: 10.1007/s10493-023-00883-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Accepted: 12/29/2023] [Indexed: 02/24/2024]
Abstract
In Ecuador, the main tick species affecting cattle are Rhipicephalus microplus and Amblyomma cajennense sensu lato. Understanding their spatial distribution is crucial. To assess their distribution, data from 2895 farms visited between 2012 and 2017 were utilized. Ticks were collected during animal inspections, with each farm's location georeferenced. Bioclimatic variables and vapor pressure deficit data were obtained from Climatologies at High resolution for the Earth´s Land Surface Areas (CHELSA) dataset. They were overlaid to develop predictive maps for each species using Random Forest (RF) models. The cross-validation results for RF prediction models showed high accuracy for both R. microplus and A. cajennense s.l. presence with values of accuracy = 0.97 and 0.98, sensitivity = 0.96 and 0.99, and specificity = 0.96 and 0.93, respectively. A carefully selected subset of bioclimatic variables was used to describe the presence of each tick species. Higher levels of precipitation had positive effect on the presence of R. microplus but a negative effect on A. cajennense s.l. In contrast, isothermality (BIO3) was more important for the presence of A. cajennense s.l. compared to R. microplus. As a result, R. microplus had a broader distribution across the country, while A. cajennense s.l. was mainly found in coastal areas with evident seasonality. The coexistence of both species in some regions could be attributed to transitional zones, whereas high altitudes limited tick presence. This information can aid in developing appropriate tick management plans, particularly considering A. cajennense s.l.'s broad host range species and R. microplus's specificity for cattle. Moreover, the predictive models can identify areas at risk of associated challenging hemoparasite, requiring special attention and mitigation measures.
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Affiliation(s)
- Ximena Pérez-Otáñez
- Instituto de Investigación en Zoonosis-CIZ, Universidad Central del Ecuador, Quito, Ecuador.
- Center for Earth and Climate Research, Earth & Life Institute, Université Catholique de Louvain-UCLouvain, Louvain-La-Neuve, Belgium.
| | - Richar Rodríguez-Hidalgo
- Instituto de Investigación en Zoonosis-CIZ, Universidad Central del Ecuador, Quito, Ecuador
- Facultad de Medicina Veterinaria y Zootecnia, Universidad Central del Ecuador, Quito, Ecuador
| | - Sandra Enríquez
- Instituto de Investigación en Zoonosis-CIZ, Universidad Central del Ecuador, Quito, Ecuador
| | - Maritza Celi-Erazo
- Instituto de Investigación en Zoonosis-CIZ, Universidad Central del Ecuador, Quito, Ecuador
| | - Washington Benítez
- Instituto de Investigación en Zoonosis-CIZ, Universidad Central del Ecuador, Quito, Ecuador
| | - Claude Saegerman
- Research Unit of Epidemiology and Risk Analysis Applied to Veterinary Science (UREAR-ULiège), Fundamental and Applied Research for Animals & Health (FARAH) Center, Faculty of Veterinary Medicine, University of Liege, Liège, Belgium
| | - Franklin Vaca-Moyano
- Instituto de Investigación en Zoonosis-CIZ, Universidad Central del Ecuador, Quito, Ecuador
| | - Lenin Ron-Garrido
- Instituto de Investigación en Zoonosis-CIZ, Universidad Central del Ecuador, Quito, Ecuador
- Facultad de Medicina Veterinaria y Zootecnia, Universidad Central del Ecuador, Quito, Ecuador
- Facultad de Ciencias Agrícolas, Universidad Central del Ecuador, Quito, Ecuador
| | - Sophie O Vanwambeke
- Center for Earth and Climate Research, Earth & Life Institute, Université Catholique de Louvain-UCLouvain, Louvain-La-Neuve, Belgium
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Iturbe-Requena SL, Cuenca-Verde C, Prado-Ochoa MG, Vázquez-Valadez VH, Muñoz-Guzmán MA, Angeles E, Alba-Hurtado F. Efficacy of ethyl-4-bromophenyl carbamate on different Rhipicephalus microplus stages implanted in cattle. Exp Appl Acarol 2023; 91:487-496. [PMID: 37787902 PMCID: PMC10616208 DOI: 10.1007/s10493-023-00846-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Accepted: 09/25/2023] [Indexed: 10/04/2023]
Abstract
The effect of ethyl-4-bromophenyl carbamate on different Rhipicephalus microplus stages implanted in cattle was evaluated using the pen test with infestation chambers. Twelve steers were distributed into four groups (n = 3), each with four chambers (12 chambers per group), where approximately 1,000 R. microplus larvae were placed in each chamber. The chambers of the first group were sprayed with a solution of ethyl-4-bromophenyl carbamate (0.668 mg/mL) on day 2 post-infestation (PI) (exposed larvae). The chambers of the second group were sprayed with the same solution on day 8 PI (exposed nymphs), and the chambers of the third group were sprayed on day 16 PI (exposed adults) with the same solution. The chambers of the fourth group were used as controls. The percentages of engorged females, egg laying, egg production and egg hatching were evaluated in all groups. The percentage of cumulative reduction of hatched larvae was 98.3, 96.1 and 94.4% when larvae, nymph and adult stages were treated, respectively. The average cumulative reduction of hatched larvae, considering the three treated stages, was 96.3%, whereby the reproductive potential of this tick was drastically reduced. In conclusion, ethyl-4-bromophenyl carbamate acted as an ixodicide (lethal effect) when larval stages were sprayed and as a growth regulator when nymphal and adult stages were sprayed. The sum of these effects had a direct impact on the efficacy of the product in the pen test, and future studies will indicate the potential use of this product for tick control.
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Affiliation(s)
- Sandra Lizeth Iturbe-Requena
- Departamento de Ciencias Biológicas, Facultad de Estudios Superiores Cuautitlán, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - César Cuenca-Verde
- Departamento de Ciencias Biológicas, Facultad de Estudios Superiores Cuautitlán, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - María Guadalupe Prado-Ochoa
- Departamento de Ciencias Biológicas, Facultad de Estudios Superiores Cuautitlán, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Víctor Hugo Vázquez-Valadez
- Laboratorio de Química Medicinal, Departamento de Ciencias Químicas, Facultad de Estudios Superiores Cuautitlán, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Marco Antonio Muñoz-Guzmán
- Departamento de Ciencias Biológicas, Facultad de Estudios Superiores Cuautitlán, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Enrique Angeles
- Laboratorio de Química Medicinal, Departamento de Ciencias Químicas, Facultad de Estudios Superiores Cuautitlán, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Fernando Alba-Hurtado
- Departamento de Ciencias Biológicas, Facultad de Estudios Superiores Cuautitlán, Universidad Nacional Autónoma de México, Mexico City, Mexico.
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Krishnamoorthy P, Parween N, Sangeetha TR, Jacob SS, Ballari S, Suresh KP. Epidemiological analysis of cattle ticks and tick-borne pathogens in Gadag district, Karnataka state in India. J Parasit Dis 2023; 47:387-399. [PMID: 37193487 PMCID: PMC10182199 DOI: 10.1007/s12639-023-01584-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Accepted: 04/05/2023] [Indexed: 05/18/2023] Open
Abstract
In the present study, epidemiological analysis on 839 ticks collected from 50 cattle in Gadag district, Karnataka state, tick identification and detection of tick-borne pathogens was conducted by PCR, sequencing, and phylogeny. The morphological identification revealed that Haemaphysalis spp. [48.6%], Rhipicephalus spp. [48.4%], and Hyalomma spp. [3.0%] tick genera in Gadag district. Further, a higher infestation of Haemaphysalis spp. [69.0%] and Rhipicephalus spp. [62.3%] in Shirahatti and Gadag taluk, respectively was observed. Based on the taluk-wise and tick genus-wise analysis, a higher number of ticks was present in the dewlap region of cattle body sites, except for Hyalomma spp., the majority of which was present in the neck. Tick genus prevalence was 45.1, 42.7%, and 12.2 for Haemaphysalis spp., Rhipicephalus spp., and Hyalomma spp., respectively. The mean tick per cattle was 11.6, 11.0, and 2.5 for Rhipicephalus spp., Haemaphysalis spp., and Hyalomma spp., respectively. The prevalence of Anaplasma marginale, Babesia spp., and Rickettsia rickettsii was 8.0, 6.4, and 6.4%, respectively in the tick DNA samples and was negative for Ehrlichia and Theileria spp. The sequencing of the cytochrome oxidase subunit 1 gene revealed the presence of Haemaphysalis bispinosa, Rhipicephalus decoloratus, and Rhipicephalus microplus tick species in the Gadag district. The phylogenetic analysis revealed the tick species have similarities and identity with the isolates from India and neighboring countries. Thus, the study provides knowledge on tick genus distribution and tick-borne pathogens in Gadag district, Karnataka which will help in developing the control and prevention strategies by the policymakers and for profitable dairy farming by farmers.
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Affiliation(s)
- Paramanandham Krishnamoorthy
- Pathoepidemiology Laboratory, ICAR- National Institute of Veterinary Epidemiology and Disease Informatics (NIVEDI), Ramagondanahalli, Yelahanka, Post Box No. 6450, Bengaluru, Karnataka 560064 India
| | - Nahid Parween
- Pathoepidemiology Laboratory, ICAR- National Institute of Veterinary Epidemiology and Disease Informatics (NIVEDI), Ramagondanahalli, Yelahanka, Post Box No. 6450, Bengaluru, Karnataka 560064 India
| | - Tadaga Revanaiah Sangeetha
- Pathoepidemiology Laboratory, ICAR- National Institute of Veterinary Epidemiology and Disease Informatics (NIVEDI), Ramagondanahalli, Yelahanka, Post Box No. 6450, Bengaluru, Karnataka 560064 India
| | - Siju Susan Jacob
- Parasitology Laboratory, ICAR- National Institute of Veterinary Epidemiology and Disease Informatics (NIVEDI), Ramagondanahalli, Yelahanka, Post Box No. 6450, Bengaluru, Karnataka 560064 India
| | | | - Kuralayanapalya Puttahonappa Suresh
- Spatial Epidemiology Laboratory, ICAR- National Institute of Veterinary Epidemiology and Disease Informatics (NIVEDI), Ramagondanahalli, Yelahanka, Post Box No. 6450, Bengaluru, Karnataka 560064 India
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Kazim AR, Low VL, Tappe D, Houssaini J, Heo CC. Rhipicephalus annulatus, R. australis or R. microplus? Discordance between morphological and genetic data among three cattle tick species. Exp Appl Acarol 2022; 87:119-131. [PMID: 35810417 DOI: 10.1007/s10493-022-00726-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Accepted: 06/20/2022] [Indexed: 06/15/2023]
Abstract
The taxonomy of ticks of the subgenus Boophilus has been extensively debated and is often complicated by the high intraspecific variation of morphological features between species. Notably, the cattle tick Rhipicephalus microplus is a species complex consisting of Rhipicephalus annulatus, Rhipicephalus australis and the three mitochondrial clades (A-C) of R. microplus. To gain insight into the taxonomic status of this species complex, we performed morphological and molecular analyses on these cattle ticks across four states in peninsular Malaysia. We morphologically identified 60 males and 104 females of R. microplus, 298 males and 374 females of R. australis, and one R. annulatus male in our field collection, of which the latter two species have never been recorded in Malaysia. However, all three morphologically identified species were molecularly assigned as R. microplus clade A based on the barcoding cytochrome oxidase subunit I (COI) analysis. The discrepancy between morphological and genetic data highlights an urgent need for further exploration and in-depth research into the taxonomic status of these sympatric tick species.
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Affiliation(s)
- A R Kazim
- Department of Medical Microbiology and Parasitology, Faculty of Medicine, Universiti Teknologi MARA Sungai Buloh Campus, Sungai Buloh, Malaysia
| | - V L Low
- Higher Institution of Centre of Excellence (HICoE), Tropical Infectious Diseases Research and Education Centre (TIDREC), Universiti Malaya, Kuala Lumpur, Malaysia
| | - D Tappe
- Bernhard Nocht Institute for Tropical Medicine, Hamburg, Germany
| | - J Houssaini
- Department of Medical Microbiology and Parasitology, Faculty of Medicine, Universiti Teknologi MARA Sungai Buloh Campus, Sungai Buloh, Malaysia
- Institute of Pathology, Laboratory and Forensic Medicine (I-PPerForM), Universiti Teknologi MARA Sungai Buloh Campus, Sungai Buloh, Malaysia
| | - C C Heo
- Department of Medical Microbiology and Parasitology, Faculty of Medicine, Universiti Teknologi MARA Sungai Buloh Campus, Sungai Buloh, Malaysia.
- Institute of Pathology, Laboratory and Forensic Medicine (I-PPerForM), Universiti Teknologi MARA Sungai Buloh Campus, Sungai Buloh, Malaysia.
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Tantrawatpan C, Vaisusuk K, Chatan W, Pilap W, Suksavate W, Andrews RH, Petney TN, Saijuntha W. Genetic diversity and phylogenetic analyses of ixodid ticks infesting cattle in northeast Thailand: the discovery of Rhipicephalus microplus clade C and the rarely detected R. haemaphysaloides. Exp Appl Acarol 2022; 86:535-548. [PMID: 35230584 DOI: 10.1007/s10493-022-00704-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2021] [Accepted: 02/17/2022] [Indexed: 06/14/2023]
Abstract
In total, 160 ticks infesting cattle in the northeast region of Thailand were collected and used for molecular investigation. Three tick species-Rhipicephalus microplus Canestrini, Rhipicephalus haemaphysaloides Supino and Haemaphysalis bispinosa Neumann-were identified based on morphology and DNA sequences of mitochondrial cytochrome c oxidase subunit 1 (CO1) and 16S ribosomal RNA (16S rRNA). In total, 26 and seven unique haplotypes of the CO1 and 16S rRNA genes, respectively, were recovered. Phylogenetic analysis using the CO1 sequence revealed that the R. microplus from northeastern Thailand were grouped into the previously described clades A and C, whereas the 16S rRNA phylogenetic tree assigned all isolates of R. microplus from Northeast Thailand into the previously described clade B. Clade C of the CO1 phylogenetic tree is a new genetic assemblage recently discovered from India and Malaysia, which has now been detected in our study. The haplotype network also demonstrated that R. microplus is divided into two haplogroups corresponding to the assemblage of the CO1 phylogenetic tree. Our findings strongly support the previous genetic assemblage classification and evidence that R. microplus from Northeast Thailand is a species complex comprising at least two genetic assemblages, i.e., clades A and C. However, further investigation is needed and should involve more comprehensive genetic and morphological analyses and cover a larger part of their distributional range throughout Southeast Asia.
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Affiliation(s)
- Chairat Tantrawatpan
- Division of Cell Biology, Department of Preclinical Sciences, Faculty of Medicine, and Center of Excellence in Stem Cell Research, Thammasat University, Rangsit Campus, Pathum Thani, 12120, Thailand
| | - Kotchaphon Vaisusuk
- Department of Veterinary Technology and Veterinary Nursing, Faculty of Agricultural Technology, Rajabhat Maha Sarakham University, Maha Sarakham, 44000, Thailand
| | - Wasupon Chatan
- Department of Veterinary Clinic, Faculty of Veterinary Sciences, Mahasarakham University, Maha Sarakham, 44000, Thailand
| | - Warayutt Pilap
- Walai Rukhavej Botanical Research Institute, and Biodiversity and Conservation Research Unit, Mahasarakham University, Maha Sarakham, 44150, Thailand
| | - Warong Suksavate
- Department of Forest Biology, Faculty of Forestry, Kasetsart University, Bangkok, 10900, Thailand
| | - Ross H Andrews
- Faculty of Medicine, Imperial College London, St Mary's Campus, South Wharf Street, London, W2 1NY, UK
- Cholangiocarcinoma Research Institute, Faculty of Medicine, Khon Kaen University, Khon Kaen, 40002, Thailand
| | - Trevor N Petney
- Department of Zoology and Paleontology and Evolution, State Museum of Natural History Karlsruhe, Erbprinzenstrasse 13, 76133, Karlsruhe, Germany
| | - Weerachai Saijuntha
- Walai Rukhavej Botanical Research Institute, and Biodiversity and Conservation Research Unit, Mahasarakham University, Maha Sarakham, 44150, Thailand.
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Maya-Delgado A, Madder M, Benítez-Ortíz W, Saegerman C, Berkvens D, Ron-Garrido L. Molecular screening of cattle ticks, tick-borne pathogens and amitraz resistance in ticks of Santo Domingo de los Tsáchilas province in Ecuador. Ticks Tick Borne Dis 2020; 11:101492. [PMID: 32723649 DOI: 10.1016/j.ttbdis.2020.101492] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Revised: 05/31/2020] [Accepted: 06/10/2020] [Indexed: 11/21/2022]
Abstract
The province of Santo Domingo de los Tsáchilas in Ecuador is a strategic place for cattle production and trade. The lack of knowledge about tick species, tick control and tick-borne diseases in Ecuador prompted this study with the goal of identifying the cattle-tick species and tick-borne agents present in the area and molecularly determining the potential acaricide resistance to amitraz of the major cattle tick species. Eighty-four cattle farms were visited and in 88 % of them, cattle were infested with ticks. Additionally, 24 historical samples from other surrounding Ecuadorian provinces, were screened as well. Besides morphological keys, PCR-RFLP MspI was used to confirm the presence of the Rhipicephalus ticks. The tick samples were also screened for tick-borne agents using PCR-RFLP BseDI and Hhal tests to identify circulating Babesia sp. and Anaplasma spp. Furthermore, the PCR-RFLP EciI technique was used to identify the amitraz resistance gene in populations of Rhipicephalus microplus in the province. Pooled testing was used to determine prevalence at individual-tick level. The presence of R. microplus and Amblyomma cajennense sensu lato (s.l.) ticks was found in 83 % and 21 % of the cattle farms respectively, showing R. microplus is widespread in the province of Santo Domingo de los Tsáchilas. Regarding tick-borne agents, only Anaplasma marginale was observed in 50 % of the visited farms of the province, while about 27 % of the ticks tested positive according to estimations from the data of the tick pools. The presence of Babesia bigemina was only confirmed in samples collected outside the province. The amitraz resistance allele in R. microplus was found in 62 % of the farms, but the percentage of farms with cattle ticks completely resistant to this acaricide was low (2%). The findings of this study should prompt cattle producers and animal health authorities to monitor control strategies, which address the management of resistant tick populations and the epidemiologically-unstable areas of tick-borne diseases.
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Matsimbe AM, Magaia V, Sanches GS, Neves L, Noormahomed E, Antunes S, Domingos A. Molecular detection of pathogens in ticks infesting cattle in Nampula province, Mozambique. Exp Appl Acarol 2017; 73:91-102. [PMID: 28856544 PMCID: PMC5705812 DOI: 10.1007/s10493-017-0155-5] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2017] [Accepted: 07/17/2017] [Indexed: 05/23/2023]
Abstract
Ticks are ectoparasites that can act as vectors of a large number of pathogens in wild and domestic animals, pets, and occasionally humans. The global threat of emerging or re-emerging tick-borne diseases supports the need for research focused in the zoonotic transmission, especially in countries like Mozambique where rural populations are in close contact with domestic animals. The present study aims to: (1) identify tick species infesting cattle from Monapo and Nacala Porto, districts of Nampula province, Mozambique; and (2) investigate the presence of pathogens in the collected ticks. A total of 646 ticks were collected from cattle and morphologically identified as Amblyomma variegatum, Rhipicephalus microplus, and R. evertsi evertsi. For convenience, 72 A. variegatum and 15 R. microplus from Monapo, and 30 A. variegatum from Nacala Porto were screened for the presence of the selected pathogens: Rickettsia spp. (A. variegatum), and Babesia/Theileria spp. and Anaplasma/Ehrlichia spp. (R. microplus). Rickettsia africae was detected in four of the 72 A. variegatum collected in Monapo (5.6%). Additionally, one R. microplus tick (6.7%) was positive for Theileria velifera, one positive for Colpodella spp., one positive for Candidatus Midichloria mitochondrii, and another one positive for Anaplasma ovis. Using the present approach, no microorganisms were detected in tick samples from Nacala Porto. These findings expand our knowledge about the repertoire of tick-borne microorganisms in ticks in Nampula province, Mozambique.
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Affiliation(s)
- Ana Marcília Matsimbe
- Centro de Estudos de Pós-Graduação e Extensão, Universidade Lúrio, Bairro de Marrere, Rua 4250, Km 2,3, Caixa Postal 360, Nampula, Mozambique
| | - Vlademiro Magaia
- Centro de Biotecnologia, Universidade Eduardo Mondlane, Av. de Moçambique, Km 1.5, C.P 257, Maputo, Mozambique
| | - Gustavo Seron Sanches
- Global Health and Tropical Medicine, Instituto de Higiene e Medicina Tropical, Universidade Nova de Lisboa, Rua da Junqueira, 100, 1349-008, Lisbon, Portugal
| | - Luís Neves
- Centro de Biotecnologia, Universidade Eduardo Mondlane, Av. de Moçambique, Km 1.5, C.P 257, Maputo, Mozambique
- Department of Veterinary Tropical Diseases, University of Pretoria, Private Bag X04, Onderstepoort, 0110, South Africa
| | - Emília Noormahomed
- Department of Microbiology, Faculty of Medicine, Universidade Eduardo Mondlane, Av, Salvador Allende, 702, Maputo, Mozambique
- Department of Medicine, Infectious Disease Division, University of California, San Diego, CA, USA
- Mozambique Institute for Health Education and Research (MIHER), Av. Salvador Allende 745, Maputo, Mozambique
| | - Sandra Antunes
- Global Health and Tropical Medicine, Instituto de Higiene e Medicina Tropical, Universidade Nova de Lisboa, Rua da Junqueira, 100, 1349-008, Lisbon, Portugal
| | - Ana Domingos
- Global Health and Tropical Medicine, Instituto de Higiene e Medicina Tropical, Universidade Nova de Lisboa, Rua da Junqueira, 100, 1349-008, Lisbon, Portugal.
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Ziapour SP, Kheiri S, Fazeli-Dinan M, Sahraei-Rostami F, Mohammadpour RA, Aarabi M, Nikookar SH, Sarafrazi M, Asgarian F, Enayati A, Hemingway J. Pyrethroid resistance in Iranian field populations of Rhipicephalus (Boophilus) annulatus. Pestic Biochem Physiol 2017; 136:70-79. [PMID: 28187834 DOI: 10.1016/j.pestbp.2016.08.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2016] [Revised: 08/02/2016] [Accepted: 08/07/2016] [Indexed: 06/06/2023]
Abstract
Resistance to acaricides in ticks is becoming increasingly widespread throughout the world; therefore, tick control requires resistance monitoring for each tick species. The aims of this study were to monitor the susceptibility status of the cattle tick, Rhipicephalus (Boophilus) annulatus (Acari: Ixodidae), against pyrethroid acaricides from Mazandaran Province, northern Iran, and where resistance was evident, and establish the possible underlying mechanisms. Fully engorged adult R. (B.) annulatus females collected on cattle from Mazandaran Province. Twenty-nine tick populations produced 10-18days old larvae and bioassayed with cypermethrin and λ-cyhalothrin by larval packet test and the levels of detoxification enzymes were measured. Population AM-29 had a maximum resistance ratio (RR99) of 20.21 to cypermethrin and 53.57% of the tick populations were resistant at LC99 level. With λ-cyhalothrin, 17.86% of the tick populations were resistant and AM-29 was the most resistant population with RR99=4.54. AM-29 also showed significant elevation of cytochrome P450 monooxygenase (P450) and glutathione S-transferase (GST) (2.76- and 2.39-fold, respectively) (P<0.001). Rhipicephalus (Boophilus) annulatus showed resistance to pyrethroid insecticides with elevated levels of P450, GST and para-nitrophenyl acetate (p-NPA) in resistant populations. Operational failure was noted in controlling R. (B.) annulatus by pyrethroid insecticides, therefore alternative pest management measures should be adopted in Iran. For the first time, a new estimate of insecticide resistance based on effective dose recommended by the pesticide manufacturer termed Operational Dose Ratio (ODR) is defined and discussed.
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Affiliation(s)
- Seyyed Payman Ziapour
- Student Research Committee, Department of Medical Entomology and Vector Control, Health Sciences Research Center, School of Public Health, Mazandaran University of Medical Sciences, Sari, Mazandaran, Iran; Department of Parasitology, North Research Center, Pasteur Institute of Iran, Amol, Mazandaran, Iran
| | - Sadegh Kheiri
- Department of Parasitology, North Research Center, Pasteur Institute of Iran, Amol, Mazandaran, Iran; Student Research Committee, Department of Microbiology, Faculty of Basic Sciences, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Mahmoud Fazeli-Dinan
- Department of Medical Entomology and Vector Control, Health Sciences Research Center, School of Public Health, Mazandaran University of Medical Sciences, Sari, Mazandaran, Iran
| | - Farzaneh Sahraei-Rostami
- Department of Medical Entomology and Vector Control, Health Sciences Research Center, School of Public Health, Mazandaran University of Medical Sciences, Sari, Mazandaran, Iran
| | - Reza Ali Mohammadpour
- Department of Biostatistics, Health Sciences Research Center, School of Public Health, Mazandaran University of Medical Science, Sari, Mazandaran, Iran
| | - Mohsen Aarabi
- Department of Social Medicine, Diabetes Research Center, School of Medicine, Mazandaran University of Medical Sciences, Sari, Mazandaran, Iran
| | - Seyed Hassan Nikookar
- Student Research Committee, Department of Medical Entomology and Vector Control, Health Sciences Research Center, School of Public Health, Mazandaran University of Medical Sciences, Sari, Mazandaran, Iran
| | - Mohammad Sarafrazi
- DVM, Animal Health and Diseases Control Unit, Mazandaran Provincial Veterinary Organization, Sari, Mazandaran, Iran
| | - Fatemeh Asgarian
- Student Research Committee, Department of Medical Parasitology and Mycology, School of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Khuzestan, Iran
| | - Ahmadali Enayati
- Department of Medical Entomology and Vector Control, Health Sciences Research Center, School of Public Health, Mazandaran University of Medical Sciences, Sari, Mazandaran, Iran.
| | - Janet Hemingway
- Department of Vector Biology, Liverpool School of Tropical Medicine, Liverpool, L3 5QA, UK
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Pazinato R, Volpato A, Baldissera MD, Santos RC, Baretta D, Vaucher RA, Giongo JL, Boligon AA, Stefani LM, Da Silva AS. In vitro effect of seven essential oils on the reproduction of the cattle tick Rhipicephalus microplus. J Adv Res 2016; 7:1029-1034. [PMID: 27857849 PMCID: PMC5106445 DOI: 10.1016/j.jare.2016.05.003] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2016] [Revised: 05/03/2016] [Accepted: 05/06/2016] [Indexed: 12/03/2022] Open
Abstract
The acaricidal effect of seven essential oils was examined in vitro against the cattle tick (Rhipicephalus microplus). Engorged female ticks were manually collected in farms of Southern Brazil and placed into petri dishes (n = 10) in order to test the following oils: juniper (Juniperus communis), palmarosa (Cymbopogon martinii), cedar (Cedrus atlantica), lemon grass (Cymbopogon citratus), ginger (Zingiber officinale), geranium (Pelargonium graveolens) and bergamot (Citrus aurantium var bergamia) at concentrations of 1%, 5%, and 10% each. A control group was used to validate the tests containing Triton X-100 only. Treatment effectiveness was measured considering inhibition of tick oviposition (partial or total), egg’s weight, and hatchability. C. martinii, C. citratus and C. atlantica essential oils showed efficacy higher than 99% at all concentrations tested. In addition, J. communis, Z. officinale, P. graveolens, and C. aurantium var bergamia oils showed efficiency ranging from 73% to 95%, depending on the concentration tested, where higher concentrations showed greater efficacy. It was concluded that essential oils can affect tick reproduction in vitro by inhibiting oviposition and hatchability.
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Affiliation(s)
- Rafael Pazinato
- Department of Animal Science, Universidade do Estado de Santa Catarina, Chapecó, Santa Catarina, Brazil
| | - Andréia Volpato
- Department of Animal Science, Universidade do Estado de Santa Catarina, Chapecó, Santa Catarina, Brazil
| | - Matheus D. Baldissera
- Department of Microbiology and Parasitology, Universidade Federal de Santa Maria, Santa Maria, Rio Grande do Sul, Brazil
| | - Roberto C.V. Santos
- Laboratory of Microbiology, Nanoscience Graduate Program, Centro Universitário Franciscano, Santa Maria, Rio Grande do Sul, Brazil
| | - Dilmar Baretta
- Department of Animal Science, Universidade do Estado de Santa Catarina, Chapecó, Santa Catarina, Brazil
| | - Rodrigo A. Vaucher
- Department of Microbiology and Parasitology, Universidade Federal de Santa Maria, Santa Maria, Rio Grande do Sul, Brazil
| | - Janice L. Giongo
- Laboratory of Microbiology, Nanoscience Graduate Program, Centro Universitário Franciscano, Santa Maria, Rio Grande do Sul, Brazil
| | - Aline A. Boligon
- Laboratory of Phytochemistry, Universidade Federal de Santa Maria, Santa Maria, Rio Grande do Sul, Brazil
| | - Lenita Moura Stefani
- Department of Animal Science, Universidade do Estado de Santa Catarina, Chapecó, Santa Catarina, Brazil
| | - Aleksandro Schafer Da Silva
- Department of Animal Science, Universidade do Estado de Santa Catarina, Chapecó, Santa Catarina, Brazil
- Corresponding author. Tel./fax: +55 49 2049 9560.
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11
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Xu T, Lew-Tabor A, Rodriguez-Valle M. Effective inhibition of thrombin by Rhipicephalus microplus serpin-15 (RmS-15) obtained in the yeast Pichia pastoris. Ticks Tick Borne Dis 2015; 7:180-187. [PMID: 26530984 DOI: 10.1016/j.ttbdis.2015.09.007] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2015] [Revised: 09/10/2015] [Accepted: 09/25/2015] [Indexed: 10/22/2022]
Abstract
The cattle tick (Rhipicephalus microplus) affects cattle industries in tropical and subtropical countries because it is the vector of babesiosis and anaplasmosis which constitutes a threat to the health of cattle. During blooding feeding, ticks secrete saliva containing a complex of bioactive molecules into the injured site to evade host's defensive responses. Serine protease inhibitors (serpins) are important anti-haemostatic molecules present in tick saliva that are necessary for a successful blood feeding. Several serpin sequences have been reported in R. microplus but there is a gap of information about their functions during host-parasite interactions. In this study, the RmS-15 expressed in the yeast Pichia pastoris was characterised using kinetic assays and in vitro analysis. The inhibitory enzymatic assays conducted showed that RmS-15 is a physiological inhibitor of thrombin with a stoichiometric inhibition (SI) of 1.5 and high inhibition affinity with ka=9.3±0.5×104M(-1)s(-1). RmS-15 delayed the clotting of plasma in a dose-dependent manner as determined in a recalcification time assay. Significant elevated ELISA titres were observed in tick resistant and susceptible cattle on day 28 after the tick infestation (p<0.001). This data suggests direct contact of RmS-15 with the immune system of the host at the tick-feeding site. The present study contributed to the understanding of the biological functions of R. microplus serpins during host-parasite interactions which contributes to the design of future innovative methods for tick control.
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Affiliation(s)
- Tao Xu
- The University of Queensland, Queensland Alliance for Agriculture & Food Innovation, Qld, Australia
| | - Ala Lew-Tabor
- The University of Queensland, Queensland Alliance for Agriculture & Food Innovation, Qld, Australia; Murdoch University, Centre for Comparative Genomics, Perth, Western Australia 6150, Australia
| | - Manuel Rodriguez-Valle
- The University of Queensland, Queensland Alliance for Agriculture & Food Innovation, Qld, Australia.
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