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da Silva AR, Herrera HM, de Oliveira CE, Torres JM, Ferreira AMR, Leite JDS, Menezes RC, Martinez ÉV, de Oliveira GMDS, Santos FM, de Andrade GB. The relationships among Leishmania infantum and phyllostomid bats assessed by histopathological and molecular assays. Int J Parasitol Parasites Wildl 2024; 23:100904. [PMID: 38261956 PMCID: PMC10797179 DOI: 10.1016/j.ijppaw.2023.100904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2023] [Revised: 12/28/2023] [Accepted: 12/28/2023] [Indexed: 01/25/2024]
Abstract
Bats have been reported as reservoir host of Leishmania spp. worldwide, mostly by molecular detection. However, it is still unclear whether bats act as reservoirs of Leishmania infantum to sandflies vectors. In this sense, the investigation of amastigotes forms in the target organs, and the characterization of their associated inflammation, may help to clarify the epidemiological importance of bats in endemic areas for leishmaniasis. The aim of this work was to investigate the host-parasite relationships under microscopic evaluation and predict the epidemiological role of two phyllostomid bats species naturally infected by L. infantum in an endemic area for human leishmaniasis. Fragments of skin, liver and spleen of L. infantum positive and negative bats (Artibeus planirostris and Carollia perspicillata) by qPCR, were studied by histological and immunohistochemical techniques. Both groups, positive and negative, did not show differences in the histopathological study, presenting only discrete tissue changes. Liver and skin showed mild inflammatory reactions. Findings on spleen consisted of reactivity of the lymphoid follicles, expressive presence of apoptotic cells and macrophages containing abundant phagocytic cells debris. We did not find amastigote forms in tissues by histological and IHC techniques in positive qPCR bats. Our results allow us to hypothesize that phyllostomid bats seem to have an important role in reducing the risk of transmission, possibly acting as dead-end host.
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Affiliation(s)
- Alanderson Rodrigues da Silva
- Universidade Católica Dom Bosco, Programa de Pós-graduação em Biotecnologia, Av. Tamandaré, 6000, CEP: 79117900, Campo Grande, Mato Grosso do Sul, Brazil
| | - Heitor Miraglia Herrera
- Universidade Católica Dom Bosco, Programa de Pós-graduação em Biotecnologia, Av. Tamandaré, 6000, CEP: 79117900, Campo Grande, Mato Grosso do Sul, Brazil
- Universidade Católica Dom Bosco, Programa de Pós-graduação em Ciências Ambientais e Sustentabilidade Agropecuária, Av. Tamandaré, 6000, CEP: 79117900, Campo Grande, Mato Grosso do Sul, Brazil
| | - Carina Elisei de Oliveira
- Universidade Católica Dom Bosco, Programa de Pós-graduação em Biotecnologia, Av. Tamandaré, 6000, CEP: 79117900, Campo Grande, Mato Grosso do Sul, Brazil
- Universidade Católica Dom Bosco, Programa de Pós-graduação em Ciências Ambientais e Sustentabilidade Agropecuária, Av. Tamandaré, 6000, CEP: 79117900, Campo Grande, Mato Grosso do Sul, Brazil
- LAMP LAB - LAMP Diagnostico LTDA– Av. Tamandaré, 6000, Jardim Seminário, 79117-900, Campo Grande, Mato Grosso do Sul, Brazil
| | - Jaire Marinho Torres
- Universidade Católica Dom Bosco, Programa de Pós-graduação em Biotecnologia, Av. Tamandaré, 6000, CEP: 79117900, Campo Grande, Mato Grosso do Sul, Brazil
| | - Ana Maria Reis Ferreira
- Universidade Federal Fluminense, Departamento de Patologia e Clínica Veterinária, Faculdade de Veterinária, Rua Vital Brazil, 64, Niterói, Rio de Janeiro, Brazil
| | - Juliana da Silva Leite
- Universidade Federal Fluminense, Departamento de Patologia e Clínica Veterinária, Faculdade de Veterinária, Rua Vital Brazil, 64, Niterói, Rio de Janeiro, Brazil
| | - Rodrigo Caldas Menezes
- Fundação Oswaldo Cruz, Laboratório de Pesquisa Clínica em Dermatozoonoses em Animais Domésticos, Av. Brasil, 4036, Sala 119, Manguinhos, Brazil
- Instituto Nacional de Infectologia Evandro Chagas, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Érica Verneque Martinez
- Universidade Católica Dom Bosco, Programa Institucional de Bolsas de Iniciação Científica, Av. Tamandaré, 6000, CEP: 79117900, Campo Grande, Mato Grosso do Sul, Brazil
| | - Gabrielly Moreira dos Santos de Oliveira
- Universidade Católica Dom Bosco, Programa Institucional de Bolsas de Iniciação Científica, Av. Tamandaré, 6000, CEP: 79117900, Campo Grande, Mato Grosso do Sul, Brazil
| | - Filipe Martins Santos
- Universidade Católica Dom Bosco, Programa de Pós-graduação em Ciências Ambientais e Sustentabilidade Agropecuária, Av. Tamandaré, 6000, CEP: 79117900, Campo Grande, Mato Grosso do Sul, Brazil
- LAMP LAB - LAMP Diagnostico LTDA– Av. Tamandaré, 6000, Jardim Seminário, 79117-900, Campo Grande, Mato Grosso do Sul, Brazil
| | - Gisele Braziliano de Andrade
- Universidade Católica Dom Bosco, Programa de Pós-graduação em Ciências Ambientais e Sustentabilidade Agropecuária, Av. Tamandaré, 6000, CEP: 79117900, Campo Grande, Mato Grosso do Sul, Brazil
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Torres JM, de Oliveira CE, Santos FM, Sano NY, Martinez ÉV, Alves FM, Tavares LER, Roque ALR, Jansen AM, Herrera HM. Trypanosomatid diversity in a bat community of an urban area in Campo Grande, Mato Grosso do Sul, Brazil. INFECTION, GENETICS AND EVOLUTION : JOURNAL OF MOLECULAR EPIDEMIOLOGY AND EVOLUTIONARY GENETICS IN INFECTIOUS DISEASES 2024; 118:105563. [PMID: 38301855 DOI: 10.1016/j.meegid.2024.105563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 11/14/2023] [Accepted: 01/29/2024] [Indexed: 02/03/2024]
Abstract
Bats have a long evolutionary history with trypanosomatids, but the role of these flying mammals on parasite transmission cycles in urban areas, especially for Trypanosoma and Leishmania species, remains poorly known. The objective of this study was to evaluate the species richness of trypanosomatids parasitizing a bat community in Campo Grande (CG), a state capital within the Cerrado of the Brazilian Midwest. We evaluated 237 bats of 13 species by means of hemoculture and molecular detection in spleen samples. The bat community of CG appears to participate in the transmission cycles of various species of trypanosomatids. We report an overall trypanosomatid detection rate of 34.2% (n = 81), involving 11 out of 13 sampled bat species. We identified six species of trypanosomatids from 61 bats by analyzing SSU rRNA and/or kDNA: Trypanosoma cruzi DTU TcI, T. c. marinkellei, T. dionisii, Leishmania infantum, L. amazonensis, and T. janseni, with this latter being detected by hemoculture for the first time in a bat species. We also detected a Molecular Operational Taxonomic Unit, Trypanosoma sp. DID, in the phyllostomids Glossophaga soricina and Platyrrhinus lineatus. The highest trypanosomatid richness was observed for Sturnira lilium, which hosted three species: L. infantum, T. dionisii and T. janseni. Given that visceral leishmaniasis is endemic in CG, special focus should be placed on L. infantum. Moreover, L. amazonensis and T. cruzi warrant attention, since these are zoonotic parasites responsible for human cases of tegumentary leishmaniasis and Chagas disease, respectively. In this respect, we discuss how bat communities may influence the Leishmania spp. transmission in endemic areas.
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Affiliation(s)
- Jaire Marinho Torres
- Universidade Católica Dom Bosco, Av. Tamandaré, 6000 - Jardim Seminário, Campo Grande, MS, Brazil
| | | | - Filipe Martins Santos
- Universidade Católica Dom Bosco, Av. Tamandaré, 6000 - Jardim Seminário, Campo Grande, MS, Brazil
| | - Nayara Yoshie Sano
- Universidade Católica Dom Bosco, Av. Tamandaré, 6000 - Jardim Seminário, Campo Grande, MS, Brazil
| | - Érica Verneque Martinez
- Universidade Federal de Mato Grosso do Sul, Cidade Universitária, Av. Costa e Silva s/n - Pioneiros, Campo Grande, MS, Brazil
| | - Fernanda Moreira Alves
- Laboratório de Biologia de Tripanossomatídeos, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Av. Brasil, Manguinhos Rio de Janeiro 4365, RJ, Brazil
| | - Luiz Eduardo Roland Tavares
- Universidade Federal de Mato Grosso do Sul, Cidade Universitária, Av. Costa e Silva s/n - Pioneiros, Campo Grande, MS, Brazil
| | - André Luiz Rodrigues Roque
- Laboratório de Biologia de Tripanossomatídeos, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Av. Brasil, Manguinhos Rio de Janeiro 4365, RJ, Brazil
| | - Ana Maria Jansen
- Universidade Católica Dom Bosco, Av. Tamandaré, 6000 - Jardim Seminário, Campo Grande, MS, Brazil; Laboratório de Biologia de Tripanossomatídeos, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Av. Brasil, Manguinhos Rio de Janeiro 4365, RJ, Brazil
| | - Heitor Miraglia Herrera
- Universidade Católica Dom Bosco, Av. Tamandaré, 6000 - Jardim Seminário, Campo Grande, MS, Brazil
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de Souza NN, Ursine RL, Cruz DS, Xavier EDMS, Queiroz LDRP, Falcão LAD, de Araújo WS, Gontijo CMF, Melo MN, Vieira TM. Leishmania species infection of bats: A systematic review. Acta Trop 2023; 248:107025. [PMID: 37769863 DOI: 10.1016/j.actatropica.2023.107025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Revised: 09/12/2023] [Accepted: 09/15/2023] [Indexed: 10/03/2023]
Abstract
A wide variety of mammals, including domestic and wild species, have been considered potential hosts and reservoirs for Leishmania. Bats have longevity, dispersal capacity, and adaptability to synotropic environments, characteristics that may favor their role in maintaining the life cycle of parasites. Therefore, the objective of this study was to carry out a worldwide systematic review of the occurrence of Leishmania species in bats, as well as to identify associations between eating habits and the type of sample collected with the occurrence of the infection. Data were obtained from a bibliographic search for studies that used molecular methods to identify parasites, employing the keywords "bats" AND "Leishmania" and their synonyms. We found 68 original studies, of which 20 were included in this review. Most studies were conducted in Brazil (60 %) and only 10 % were conducted in Old World countries. In all, 48 bat species were recorded that hosted seven Leishmania species, resulting in 62 different host-parasite interactions, and the Leishmania infantum interaction with bat species presented higher frequency. There was no significant difference between Leishmania species richness, infection percentage, and type of sample analyzed, but in general, it is observed that the use of different biological samples seems to expand the possibility of parasite detection. The patterns observed here indicate that bats can become infected with a wide variety of Leishmania species and likely play an important role in maintaining the parasite's life cycle. Thus, we suggest that studies aimed at understanding the transmission cycle of leishmaniasis include the investigation of bats as potential hosts or reservoirs of Leishmania.
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Affiliation(s)
- Núbia Nunes de Souza
- Post Graduate Program in Health Sciences, State University of Montes Claros, Montes Claros C.P. 39401-002, Minas Gerais, Brazil.
| | - Renata Luiz Ursine
- Department of Biological Sciences, Federal University of the Jequitinhonha and Mucuri Valleys, Diamantina C.P. 39.100 - 000, Brazil
| | - Dardiane Santos Cruz
- Post Graduate Program in Health Sciences, State University of Montes Claros, Montes Claros C.P. 39401-002, Minas Gerais, Brazil
| | | | - Lorena Dos Reis Pereira Queiroz
- Post Graduate Program in Health Sciences, State University of Montes Claros, Montes Claros C.P. 39401-002, Minas Gerais, Brazil
| | - Luiz Alberto Dolabela Falcão
- Department of Biological Sciences, State University of Montes Claros, Montes Claros, Minas Gerais C.P. 39401-002, Brazil
| | - Walter Santos de Araújo
- Department of Biological Sciences, State University of Montes Claros, Montes Claros, Minas Gerais C.P. 39401-002, Brazil
| | - Célia Maria Ferreira Gontijo
- Research Group on Leishmaniasis, Research Center René Rachou, Oswaldo Cruz Foundation, Belo Horizonte, Minas Gerais, Brazil
| | - Maria Norma Melo
- Department of Parasitology, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Thallyta Maria Vieira
- Post Graduate Program in Health Sciences, State University of Montes Claros, Montes Claros C.P. 39401-002, Minas Gerais, Brazil; Department of Biological Sciences, State University of Montes Claros, Montes Claros, Minas Gerais C.P. 39401-002, Brazil
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Luna N, Muñoz M, Castillo-Castañeda A, Hernandez C, Urbano P, Shaban M, Paniz-Mondolfi A, Ramírez JD. Characterizing the blood microbiota of omnivorous and frugivorous bats (Chiroptera: Phyllostomidae) in Casanare, eastern Colombia. PeerJ 2023; 11:e15169. [PMID: 37431467 PMCID: PMC10329821 DOI: 10.7717/peerj.15169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Accepted: 03/13/2023] [Indexed: 07/12/2023] Open
Abstract
Bats are known reservoirs of seemingly-innocuous pathogenic microorganisms (including viruses, bacteria, fungi, and protozoa), which are associated with triggering disease in other zoonotic groups. The taxonomic diversity of the bats' microbiome is likely associated with species-specific phenotypic, metabolic, and immunogenic capacities. To date, few studies have described the diversity of bat blood microbial communities. Then, this study used amplicon-based next generation sequencing of the V4 hypervariable region of the 16S-rRNA gene in blood samples from omnivorous (n = 16) and frugivorous (n = 9) bats from the department of Casanare in eastern Colombia. We found the blood microbiota in bats to be composed of, among others, Bartonella and Mycoplasma bacterial genera which are associated with various disease phenotypes in other mammals. Furthermore, our results suggest that the bats' dietary habits might determine the composition and the persistence of some pathogens over others in their bloodstream. This study is among the first to describe the blood microbiota in bats, to reflect on co-infection rates of multiple pathogens in the same individual, and to consider the influence of diet as a factor affecting the animal's endogenous microbial community.
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Affiliation(s)
- Nicolas Luna
- Centro de Investigaciones en Microbiología y Biotecnología-UR (CIMBIUR), Facultad de Ciencias Naturales, Universidad del Rosario, Bogotá, Colombia
| | - Marina Muñoz
- Centro de Investigaciones en Microbiología y Biotecnología-UR (CIMBIUR), Facultad de Ciencias Naturales, Universidad del Rosario, Bogotá, Colombia
| | - Adriana Castillo-Castañeda
- Centro de Investigaciones en Microbiología y Biotecnología-UR (CIMBIUR), Facultad de Ciencias Naturales, Universidad del Rosario, Bogotá, Colombia
| | - Carolina Hernandez
- Centro de Investigaciones en Microbiología y Biotecnología-UR (CIMBIUR), Facultad de Ciencias Naturales, Universidad del Rosario, Bogotá, Colombia
| | - Plutarco Urbano
- Centro de Investigaciones en Microbiología y Biotecnología-UR (CIMBIUR), Facultad de Ciencias Naturales, Universidad del Rosario, Bogotá, Colombia
- Universidad Internacional del Tropico Americano (Unitropico), Yopal, Colombia
| | - Maryia Shaban
- Molecular Microbiology Laboratory, Department of Pathology, Molecular and Cell-Based Medicine, Icahn School of Medicine at Mount Sinai, New York, United States of America
- Incubadora Venezolana de la Ciencia, Caracas, Venezuela
| | - Alberto Paniz-Mondolfi
- Molecular Microbiology Laboratory, Department of Pathology, Molecular and Cell-Based Medicine, Icahn School of Medicine at Mount Sinai, New York, United States of America
- Incubadora Venezolana de la Ciencia, Caracas, Venezuela
| | - Juan David Ramírez
- Centro de Investigaciones en Microbiología y Biotecnología-UR (CIMBIUR), Facultad de Ciencias Naturales, Universidad del Rosario, Bogotá, Colombia
- Molecular Microbiology Laboratory, Department of Pathology, Molecular and Cell-Based Medicine, Icahn School of Medicine at Mount Sinai, New York, United States of America
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Role of Brazilian bats in the epidemiological cycle of potentially zoonotic pathogens. Microb Pathog 2023; 177:106032. [PMID: 36804526 DOI: 10.1016/j.micpath.2023.106032] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2022] [Revised: 02/07/2023] [Accepted: 02/12/2023] [Indexed: 02/19/2023]
Abstract
Bats (Chiroptera) are flying mammals of great biodiversity and habits. These characteristics contribute for them being natural reservoirs and part of the epidemiological cycle of several potentially zoonotic pathogens, such as viruses, protozoa, fungi and bacteria. Brazil hosts approximately 15% of the world's bat diversity, with 181 distinct species, 68 genera and 9 families. About 60% of infectious diseases in humans are of zoonotic origin and, in the last decades, the detection of zoonotic pathogens in bats and their environment has been reported, such as Rabies virus (RABV) and Histoplasma capsulatum. Thus, the aim of this work was to review the reports of zoonotic pathogens associated with bats in Brazil in the past ten years. We reviewed the main pathogenic microorganisms described and the species of bats most frequently involved in the epidemiological cycles of these zoonotic agents. The obtained data show an upward trend in the detection of zoonotic pathogens in Brazilian bats, such as RABV, Bartonella sp., Histoplasma capsulatum and Leishmania spp., with emphasis on the bat species Artibeus lituratus, Carollia perspicillata, Desmodus rotundus and Molossus molossus. These findings highlight the importance of monitoring bat-associated microrganisms to early identify pathogens that may threaten bat populations, including potentially zoonotic microrganisms, emphasizing the importance of the One Health approach to prevent and mitigate the risks of the emergence of zoonotic diseases.
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Ramos LGSM, Costa VA, Louzeiro NM, Carvalho CCA, de Maria Seabra Nogueira R, Speranca MA, Cabral AD, Costa FB, Barros MC, da Costa Fraga E, Marcili A, da Costa AP. Chiropterans as a potential hosts of Leishmania spp. in endemic areas for leishmaniasis in northeastern Brazil. Zoonoses Public Health 2022; 69:987-992. [PMID: 36028935 DOI: 10.1111/zph.12997] [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: 05/09/2022] [Revised: 07/12/2022] [Accepted: 08/01/2022] [Indexed: 01/25/2023]
Abstract
The species of the genus Leishmania are protozoa that are widely distributed from Asia to the Americas, affecting humans and wild and domestic animals. Little is known about infection by Leishmania in bats in the state of Maranhão, Brazil. The objective of this study was to investigate the presence of Leishmania in bats in Maranhão. Blood samples were collected from bat species for parasitological diagnosis. Samples of spleen and liver were collected for molecular analysis. All the blood cultures were negative. In two blood smears, organisms similar to amastigotes of Leishmania sp. were detected. Of the 116 samples, two spleen samples were positive and showed similarity to Leishmania infantum. Therefore, further studies are needed to elucidate whether bats take part in the epidemiological chain of leishmaniasis.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | - Arlei Marcili
- São Paulo University, São Paulo, Brazil.,Santo Amaro University, São Paulo, Brazil
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Ratzlaff FR, Fernandes FD, Osmari V, Silva D, de Paula Vasconcellos JS, Braunig P, Vogel FSF, de Ávila Botton S, Dos Santos HF, Cargnelutti JF, Caldart ET, Campos A, de Mello Filho JA, Soares JF, Fagundes-Moreira R, Witt AA, Pacheco SM, Sangioni LA. Prevalence and molecular detection of Leishmania spp. in bats from Rio Grande do Sul state, Brazil. Parasitol Res 2022; 121:3193-3202. [PMID: 36048268 DOI: 10.1007/s00436-022-07639-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Accepted: 08/23/2022] [Indexed: 11/29/2022]
Abstract
This study aimed to detect the occurrence of infection by Leishmania spp.in bats from 34 municipalities of Rio Grande do Sul state (RS; southern Brazil) from 2016 to 2021. A total of 109 bats were provided by the Centro Estadual de Vigilância em Saúde of RS, including six species belonged to Molossidae family, six to Vespertilionidae family, and two to Phyllostomidae family. Leishmania spp. was identified using the nested-PCR method by amplifying the SSU rDNA ribosomal subunit gene into four organ pools: (1) the liver, spleen, and lymph node; (2) heart and lungs; (3) skin; and (4) bone marrow of each bat. Three (3/109, 2.7%) animals tested positive for Leishmania spp. The respective PCR-positive organs came from pools 1 and 3. Two bats (Tadarida brasiliensis) were from the municipality of Canoas, and sequences analysis confirms the species identification as Leishmania infantum. In the third bat (Molossus molossus), from Rio Grande, it was not possible to determine the protozoa species, being considered Leishmania spp. Our results indicate that bats can participate in the biological cycle of Leishmania spp. and perform as host, reservoir, and/or source of infection of the protozoa in different areas of RS. More studies will be needed to elucidate the role of these Chiropteras in the circulation of Leishmania spp. This is the first study reporting the occurrence of Leishmania spp. in bats in Rio Grande do Sul state, southern Brazil.
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Affiliation(s)
- Fabiana Raquel Ratzlaff
- Laboratório de Doenças Parasitárias (LADOPAR), Departamento de Medicina Veterinária Preventiva (DMVP), Centro de Ciências Rurais (CCR), Universidade Federal de Santa Maria (UFSM), Av. Roraima, nº 1000, Prédio 63D, Bairro Camobi, Santa Maria, Rio Grande do Sul, CEP, 97105-900, Brazil
| | - Fagner D'ambroso Fernandes
- Laboratório de Doenças Parasitárias (LADOPAR), Departamento de Medicina Veterinária Preventiva (DMVP), Centro de Ciências Rurais (CCR), Universidade Federal de Santa Maria (UFSM), Av. Roraima, nº 1000, Prédio 63D, Bairro Camobi, Santa Maria, Rio Grande do Sul, CEP, 97105-900, Brazil.
| | - Vanessa Osmari
- Laboratório de Doenças Parasitárias (LADOPAR), Departamento de Medicina Veterinária Preventiva (DMVP), Centro de Ciências Rurais (CCR), Universidade Federal de Santa Maria (UFSM), Av. Roraima, nº 1000, Prédio 63D, Bairro Camobi, Santa Maria, Rio Grande do Sul, CEP, 97105-900, Brazil
| | - Daniele Silva
- Laboratório de Doenças Parasitárias (LADOPAR), Departamento de Medicina Veterinária Preventiva (DMVP), Centro de Ciências Rurais (CCR), Universidade Federal de Santa Maria (UFSM), Av. Roraima, nº 1000, Prédio 63D, Bairro Camobi, Santa Maria, Rio Grande do Sul, CEP, 97105-900, Brazil
| | - Jaíne Soares de Paula Vasconcellos
- Laboratório de Doenças Parasitárias (LADOPAR), Departamento de Medicina Veterinária Preventiva (DMVP), Centro de Ciências Rurais (CCR), Universidade Federal de Santa Maria (UFSM), Av. Roraima, nº 1000, Prédio 63D, Bairro Camobi, Santa Maria, Rio Grande do Sul, CEP, 97105-900, Brazil
| | - Patrícia Braunig
- Laboratório de Doenças Parasitárias (LADOPAR), Departamento de Medicina Veterinária Preventiva (DMVP), Centro de Ciências Rurais (CCR), Universidade Federal de Santa Maria (UFSM), Av. Roraima, nº 1000, Prédio 63D, Bairro Camobi, Santa Maria, Rio Grande do Sul, CEP, 97105-900, Brazil
| | - Fernanda Silveira Flores Vogel
- Laboratório de Doenças Parasitárias (LADOPAR), Departamento de Medicina Veterinária Preventiva (DMVP), Centro de Ciências Rurais (CCR), Universidade Federal de Santa Maria (UFSM), Av. Roraima, nº 1000, Prédio 63D, Bairro Camobi, Santa Maria, Rio Grande do Sul, CEP, 97105-900, Brazil
| | - Sônia de Ávila Botton
- Laboratório de Doenças Parasitárias (LADOPAR), Departamento de Medicina Veterinária Preventiva (DMVP), Centro de Ciências Rurais (CCR), Universidade Federal de Santa Maria (UFSM), Av. Roraima, nº 1000, Prédio 63D, Bairro Camobi, Santa Maria, Rio Grande do Sul, CEP, 97105-900, Brazil
| | - Helton Fernandes Dos Santos
- Laboratório Central de Diagnóstico Em Patologia Aviária (LCDPA), Departamento de Medicina Veterinária Preventiva (DMVP), Centro de Ciências Rurais (CCR), Universidade Federal de Santa Maria (UFSM), CEP, Av. Roraima, nº 1000, Prédio 44, Bairro Camobi, Santa Maria, Rio Grande do Sul, 97105-900, Brazil
| | - Juliana Felipetto Cargnelutti
- Laboratório de Bacteriologia (LABAC), Departamento de Medicina Veterinária Preventiva (DMVP), Universidade Federal de Santa Maria (UFSM), CEP, Av. Roraima, nº 1000, Prédio 63D, Bairro Camobi, Santa Maria, RS, 97105-900, Brazil
| | - Eloiza Teles Caldart
- Departamento de Medicina Veterinária Preventiva, Universidade Estadual de Londrina (UEL), CEP, Rodovia Celso Garcia Cid, PR-445, Km 380, Londrina, Paraná, 86057-970, Brazil
| | - Aline Campos
- Centro Estadual de Vigilância Em Saúde (CEVS), Av. Ipiranga, 5400, Porto Alegre, Rio Grande do Sul, CEP, 90610-000, Brazil
| | - José Américo de Mello Filho
- Departamento de Engenharia Rural, Centro de Ciências Rurais (CCR), Universidade Federal de Santa Maria (UFSM), CEP, Av. Roraima, 1000, Bairro Camobi, Santa Maria, Rio Grande do Sul, 97105-900, Brazil
| | - João Fabio Soares
- Laboratório de Protozoologia e Rickettsioses Vetoriais, Faculdade de Veterinária, Universidade de Federal Do Rio Grande Do Sul (UFRGS), Av. Bento Gonçalves, 9090, Porto Alegre, Rio Grande do Sul, CEP, 91540-000, Brazil
| | - Renata Fagundes-Moreira
- Laboratório de Protozoologia e Rickettsioses Vetoriais, Faculdade de Medicina Veterinária, Universidade de Federal Do Rio Grande Do Sul (UFRGS), Av. Bento Gonçalves, 9090, Porto Alegre, Rio Grande do Sul, CEP, 91540-000, Brazil
| | - André Alberto Witt
- Divisão de Defesa Sanitária Animal (DDA), Secretaria da Agricultura, Pecuária e Desenvolvimento Rural (SEAPDRA), Av. Getúlio Vargas, 1384, Porto Alegre, CEP, 90150-004, Brazil
| | - Susi Missel Pacheco
- Instituto Sauver - Organização não governamental, R. Dr. Paulo Franco Dos Réis, 40, Boa Vista, Porto Alegre, 90480-090, Brazil
| | - Luís Antônio Sangioni
- Laboratório de Doenças Parasitárias (LADOPAR), Departamento de Medicina Veterinária Preventiva (DMVP), Centro de Ciências Rurais (CCR), Universidade Federal de Santa Maria (UFSM), Av. Roraima, nº 1000, Prédio 63D, Bairro Camobi, Santa Maria, Rio Grande do Sul, CEP, 97105-900, Brazil
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8
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de Araújo GR, de Mello ÉM, de Oliveira VNGM, Dos Santos TR, Nunes RV, de Andrade HM, Furtado LFV, Rabelo ÉML. Bats as hosts of Leishmania (Leishmania) infantum in Minas Gerais, an endemic area for visceral leishmaniasis. Vet Parasitol Reg Stud Reports 2022; 32:100740. [PMID: 35725103 DOI: 10.1016/j.vprsr.2022.100740] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 05/13/2022] [Accepted: 05/15/2022] [Indexed: 06/15/2023]
Abstract
Bats are parasitized by a wide spectrum of ecto and endoparasites, but their role as a reservoir for some zoonoses is not fully understood. The objective of this work was to evaluate the presence of Leishmania DNA in the blood of bats from 30 municipalities in the state of Minas Gerais, Brazil. We analyzed samples of 120 bats, covering 29 species. The blood samples were used for DNA extraction and submitted to conventional PCR analysis with primers directed to the Leishmania ITS-1 region of the rRNA. In total, 1.67% (2/120 samples) were positive for Leishmania spp., detected in animals from the metropolitan region of Belo Horizonte, the state capital. Sequencing of the positive samples revealed that both bats were infected with Leishmania (Leishmania) infantum. Considering the adaptability of some bats species to synanthropic environments, the results of the present work can contribute to a better comprehension of the leishmaniasis cycle and epidemiology.
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Affiliation(s)
- Giovanna Rotondo de Araújo
- Universidade Federal de Minas Gerais, Instituto de Ciências Biológicas, Avenida Presidente Antônio Carlos, 6627, Pampulha, CEP 31270-901, Belo Horizonte, Minas Gerais, Brazil
| | - Érica Munhoz de Mello
- Centro de Controle de Zoonoses, Secretaria Municipal de Saúde, Prefeitura de Belo Horizonte, Belo Horizonte, Minas Gerais, Brazil
| | - Valéria Nayara Gomes Mendes de Oliveira
- Universidade Federal de Minas Gerais, Instituto de Ciências Biológicas, Avenida Presidente Antônio Carlos, 6627, Pampulha, CEP 31270-901, Belo Horizonte, Minas Gerais, Brazil
| | - Talita Rodrigues Dos Santos
- Universidade Federal de Minas Gerais, Instituto de Ciências Biológicas, Avenida Presidente Antônio Carlos, 6627, Pampulha, CEP 31270-901, Belo Horizonte, Minas Gerais, Brazil
| | - Ramon Vieira Nunes
- Universidade Federal de Minas Gerais, Instituto de Ciências Biológicas, Avenida Presidente Antônio Carlos, 6627, Pampulha, CEP 31270-901, Belo Horizonte, Minas Gerais, Brazil
| | - Hélida Monteiro de Andrade
- Universidade Federal de Minas Gerais, Instituto de Ciências Biológicas, Avenida Presidente Antônio Carlos, 6627, Pampulha, CEP 31270-901, Belo Horizonte, Minas Gerais, Brazil
| | - Luis Fernando Viana Furtado
- Universidade Federal de Minas Gerais, Instituto de Ciências Biológicas, Avenida Presidente Antônio Carlos, 6627, Pampulha, CEP 31270-901, Belo Horizonte, Minas Gerais, Brazil; Universidade do Estado de Minas Gerais, Unidade Passos, Avenida Juca Stockler, 1130, CEP 37900-106, Nossa Senhora das Graças, Passos, Minas Gerais, Brazil.
| | - Élida Mara Leite Rabelo
- Universidade Federal de Minas Gerais, Instituto de Ciências Biológicas, Avenida Presidente Antônio Carlos, 6627, Pampulha, CEP 31270-901, Belo Horizonte, Minas Gerais, Brazil
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9
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Leishmania diversity in bats from an endemic area for visceral and cutaneous leishmaniasis in Southeastern Brazil. Acta Trop 2022; 228:106327. [PMID: 35085511 DOI: 10.1016/j.actatropica.2022.106327] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Revised: 01/19/2022] [Accepted: 01/22/2022] [Indexed: 11/22/2022]
Abstract
This study aimed to determine the occurrence of Leishmania infection in bats in urban and wild areas in an endemic municipality for visceral and cutaneous leishmaniasis in Minas Gerais, Brazil. Between April 2014 to April 2015, 247 bats were captured and classified into 26 species belonging to Phyllostomidae (90.7%), Vespertilionidae (8.1%) and Molossidae (1.2%) families. Blood samples from 247 bats were collected and submitted to nested-PCR, targeting the variable V7-V8 region of the SSU rRNA gene, followed by sequencing of the PCR product. The overall infection rate of Leishmania spp. in bats was 4.4%. Of the eleven bats infected, ten were frugivorous bats: Artibeus planirostris (8/11), Artibeus lituratus (1/11) and Artibeus cinereus (1/11) and one a nectarivorous bat (Glossophaga soricina). None of the individuals exhibited macroscopic alterations in the skin, spleen or liver. Phylogenetic analysis separated Leishmania species in clades corresponding to the subgenera Viannia, Leishmania, and Mundinia, and supported that the isolates characterized in the present study clustered closely with Leishmania (Viannia) sp., Leishmania (Leishmania) infantum and Leishmania (Leishmania) amazonensis. Here we report for the first time the bat Artibeus cinereus as a host of Leishmania (Leishmania) amazonensis. In the study we found that the mean abundance of bats did not differ in wild habitats and urban areas and that bat-parasite interactions were similarly distributed in the two environments. On the other hand, further studies should be conducted in more recent times to verify whether there have been changes in these parameters.
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10
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Ozturk EA, Caner A. Liquid Biopsy for Promising Non-invasive Diagnostic Biomarkers in Parasitic Infections. Acta Parasitol 2022; 67:1-17. [PMID: 34176040 DOI: 10.1007/s11686-021-00444-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Accepted: 06/16/2021] [Indexed: 02/06/2023]
Abstract
BACKGROUND Liquid biopsy refers to the sampling and molecular analysis of body fluids such as blood, saliva, and urine in contrast to conventional tissue biopsies. Liquid biopsy approach can offer powerful non-invasive biomarkers (circulating markers) for diagnosis and monitoring treatment response of a variety of diseases, including parasitic infections. METHODS In this review, we concentrate on cell-free DNA (cfDNA), microRNA (miRNA), and exosomes in the published literature. RESULTS Considering the high prevalence and severity of parasitic infections worldwide, circulating biomarkers can provide a new insight into the diagnosis and prognosis of parasites in the near future. Moreover, identifying and characterizing parasite- or host-derived circulating markers are important for a better understanding of the pathogenesis of parasite infection and host-parasite relationship at the molecular level. Profiling of biomarkers for parasitic diseases is a promising potential field, though further studies and optimization strategies are required, both in vitro and in vivo. CONCLUSION In this review, we discuss three approaches in the liquid biopsy including circulating cfDNA, miRNAs, and exosomes for diagnosis and evaluation of parasites and summarize circulating biomarkers in non-invasive samples during parasitic infections.
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Affiliation(s)
- Eylem Akdur Ozturk
- Department of Parasitology, Çukurova University Faculty of Medicine, Adana, Turkey
| | - Ayse Caner
- Department of Parasitology, Ege University Faculty of Medicine, 35100, Izmir, Turkey.
- Cancer Research Center, Ege University, Izmir, Turkey.
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11
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de Macedo GC, Barreto WTG, de Oliveira CE, Santos FM, Porfírio GEDO, Xavier SCDC, Alves FM, da Silva AR, de Andrade GB, Rucco AC, de Assis WO, Jansen AM, Roque ALR, Herrera HM. Leishmania infantum infecting the carnivore Nasua nasua from urban forest fragments in an endemic area of visceral leishmaniasis in Brazilian Midwest. Front Cell Infect Microbiol 2022; 12:1050339. [PMID: 36710973 PMCID: PMC9880478 DOI: 10.3389/fcimb.2022.1050339] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Accepted: 12/28/2022] [Indexed: 01/14/2023] Open
Abstract
Introduction The aim of the present study was to investigate the occurrence of Leishmania infantum in South American coatis inhabiting two forest fragments in Campo Grande, Mato Grosso do Sul, Midwest region of Brazil, an endemic area of human and canine visceral leishmaniasis (VL). Material and methods A total of 110 South American coatis were sampled in the conservation unit "Parque Estadual do Prosa" (PEP) and in the residential area "Vila da Base Aérea" (VBA) from March 2018 to April 2019. As a longitudinal study that include up to six recaptures of the same individual, a total of 190 capture events were obtained. Blood, bone marrow and skin samples were obtained for parasitological (axenic culture), serological (Enzyme Linked Immunosorbent Assay - ELISA and Dual-path Platform immunoassay - DPP® CVL) and molecular diagnostic assays (targeting kDNA for Leishmania spp. and L. infantum; and HSP70 followed by sequence analysis). Results Seropositivity for L. infantum was found in 33 individuals, six in PEP and 27 in VBA. Furthermore, L. infantum was detected by molecular analysis in 16 individuals, seven from PEP and nine from VBA. We also isolated L. infantum from bone marrow of one individual and detected a single positive skin sample in molecular assay from other individual, both from VBA. Discussion An overall infection rate of 36.4% (40/110) was observed, significantly higher in the VBA (49.1%) than in the PEP (21.6%), probably because VBA presents: (i) a large number of resident dogs and chickens that would be attracting sandflies; (ii) a denser population of this wild mammal species; and (iii) physical barriers and a lack of functional connectivity in the surroundings, preventing these animals to disperse out. We conclude that South American coati populations living in urban forest fragments of Campo Grande are affected by the epidemiological scenario of VL, known to involve dogs, vectors and humans. We highlight the importance of investigate the parasitism by L. infantum in this and other potential L. infantum reservoirs that inhabit urbanized regions endemic to VL.
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Affiliation(s)
- Gabriel Carvalho de Macedo
- Post-Graduate Program in Environmental Sciences and Agricultural Sustainability, Dom Bosco Catholic University, Campo Grande, Brazil
| | - Wanessa Teixeira Gomes Barreto
- Post-Graduate Program in Environmental Sciences and Agricultural Sustainability, Dom Bosco Catholic University, Campo Grande, Brazil
| | - Carina Elisei de Oliveira
- Post-Graduate Program in Environmental Sciences and Agricultural Sustainability, Dom Bosco Catholic University, Campo Grande, Brazil.,Post-Graduate Program in Biotechnology, Dom Bosco Catholic University, Campo Grande, Brazil
| | - Filipe Martins Santos
- Post-Graduate Program in Environmental Sciences and Agricultural Sustainability, Dom Bosco Catholic University, Campo Grande, Brazil
| | | | | | - Fernanda Moreira Alves
- Laboratory of Trypanosomatid Biology, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Rio de Janeiro, Brazil.,Post-Graduate Program in Parasite Biology, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Rio de Janeiro, Brazil
| | | | - Gisele Braziliano de Andrade
- Post-Graduate Program in Environmental Sciences and Agricultural Sustainability, Dom Bosco Catholic University, Campo Grande, Brazil
| | - Andreza Castro Rucco
- Post-Graduate Program in Environmental Sciences and Agricultural Sustainability, Dom Bosco Catholic University, Campo Grande, Brazil
| | - William Oliveira de Assis
- Post-Graduate Program in Environmental Sciences and Agricultural Sustainability, Dom Bosco Catholic University, Campo Grande, Brazil
| | - Ana Maria Jansen
- Laboratory of Trypanosomatid Biology, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Rio de Janeiro, Brazil
| | - André Luiz Rodrigues Roque
- Laboratory of Trypanosomatid Biology, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Rio de Janeiro, Brazil
| | - Heitor Miraglia Herrera
- Post-Graduate Program in Environmental Sciences and Agricultural Sustainability, Dom Bosco Catholic University, Campo Grande, Brazil.,Post-Graduate Program in Biotechnology, Dom Bosco Catholic University, Campo Grande, Brazil
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12
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Development of an Amplicon-Based Next-Generation Sequencing Protocol to Identify Leishmania Species and Other Trypanosomatids in Leishmaniasis Endemic Areas. Microbiol Spectr 2021; 9:e0065221. [PMID: 34643453 PMCID: PMC8515931 DOI: 10.1128/spectrum.00652-21] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Trypanosomatid infections are an important public health threat affecting many low-income countries across the tropics, particularly in the Americas. Trypanosomatids can infect many vertebrate, invertebrate, and plant species and play an important role as human pathogens. Among these clinically relevant pathogens are species from the genera Leishmania and Trypanosoma. Mixed trypanosomatid infections remain a largely unexplored phenomenon. Herein, we describe the application of an amplicon-based next-generation sequencing (NGS) assay to detect and identify trypanosomatid species in mammalian reservoirs, human patients, and sand fly vectors throughout regions of Leishmania endemicity. Sixty-five samples from different departments of Colombia, including two samples from Venezuela, were analyzed: 49 samples from cutaneous leishmaniasis (CL) patients, 8 from sand flies, 2 from domestic reservoirs (Canis familiaris), and 6 from wild reservoirs (Phyllostomus hastatus). DNA from each sample served to identify the presence of trypanosomatids through conventional PCR using heat shock protein 70 (HSP70) gene as the target. PCR products underwent sequencing by Sanger sequencing and NGS, and trypanosomatid species were identified by using BLASTn against a reference database built from trypanosomatid-derived HSP70 sequences. The alpha and beta diversity indexes of amplicon sequence variants were calculated for each group. The results revealed the presence of mixed infections with more than two Leishmania species in 34% of CL samples analyzed. Trypanosoma cruzi was identified in samples from wild reservoirs, as well as in sand fly vectors. Coinfection events with three different Leishmania species were identified in domestic reservoirs. These findings depose the traditional paradigm of leishmaniasis as being a single-species-driven infection and redraw the choreography of host-pathogen interaction in the context of multiparasitism. Further research is needed to decipher how coinfections may influence disease progression. This knowledge is key to developing an integrated approach for diagnosis and treatment. IMPORTANCE Traditionally, there has been a frequent, yet incorrect assumption that phlebotomine vectors, animal reservoirs, and human hosts are susceptible to Leishmania infection by a single parasite species. However, current evidence supports that these new vector-parasite-reservoir associations lend vectors and reservoirs greater permissiveness to certain Leishmania species, thus promoting the appearance of coinfection events, particularly in disease-endemic regions. The present study describes the application of an amplicon-based next-generation sequencing (NGS) assay to detect and identify trypanosomatid species in mammalian reservoirs, human patients, and sand fly vectors from regions of endemicity for leishmaniasis. This changes our understanding of the clinical course of leishmaniasis in areas of endemicity.
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Riva MM, Pastor FM, Almeida YV, Duarte LM, Souza LIS, Zanini MS, da Silva MA. Detection of Leishmania (Viannia) braziliensis in bats from Espírito Santo, Brazil (2018-2019). Parasitol Res 2021; 120:3857-3863. [PMID: 34499197 DOI: 10.1007/s00436-020-07042-2] [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: 06/25/2020] [Accepted: 12/28/2020] [Indexed: 11/25/2022]
Abstract
Studying the occurrence of Leishmania in bats would help toward clarifying the role of these animals in epidemiological cycles. Therefore, the objective of this study was to detect Leishmania spp. in bats from the Brazilian State of Espírito Santo. In total, 105 bats from 11 species which had been collected from 17 municipalities of Espírito Santo were obtained from the IDAF Rabies Diagnostic Laboratory between December 2018 and June 2019. DNA was extracted from the bone marrow, skin, and spleen samples and analysed using conventional PCR, with primers specific for the kinetoplastic DNA minicircle of the parasitic species Leishmania (Viannnia) braziliensis, Leishmania (Leishmania) infantum, and Leishmania (Leishmania) amazonensis. To identify the Leishmania species, the positive PCR products were analysed using PCR-RFLP with the HaeIII enzyme and 8% polyacrylamide gel electrophoresis. Positivity for L. (V.) braziliensis was observed in five (4.76%) bats: namely, one male Eumops glaucinus from Vitória (in a skin sample), one male Artibeus lituratus from Vila Velha and one female Eumops glaucinus from Vitória (both in bone marrow samples), and one male A. lituratus from Vitória and one male Molossus rufus from Guarapari (both in the spleen samples). To our best knowledge, this is the first report of the detection of Leishmania in bats from Espírito Santo as well as of Leishmania DNA in the bone marrow of bats.
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Affiliation(s)
- Mayara Mezabarba Riva
- Programa de Pós-Graduação em Ciências Veterinárias, Universidade Federal do Espírito Santo, Alto Universitário, s/n, Guararema, Alegre, Espírito Santo, CEP 29.500-000, Brazil
| | - Felipe Martins Pastor
- Programa de Pós-Graduação em Ciências Veterinárias, Universidade Federal do Espírito Santo, Alto Universitário, s/n, Guararema, Alegre, Espírito Santo, CEP 29.500-000, Brazil
| | - Yuri Vieira Almeida
- Departamento de Medicina Veterinária, Universidade Federal do Espírito Santo, Alto Universitário, s/n, Guararema, Alegre, Espírito Santo, CEP 29.500-000, Brazil
| | - Lívia Martino Duarte
- Departamento de Medicina Veterinária, Universidade Federal do Espírito Santo, Alto Universitário, s/n, Guararema, Alegre, Espírito Santo, CEP 29.500-000, Brazil
| | - Lígia Isabelle Silva Souza
- Departamento de Medicina Veterinária, Universidade Federal do Espírito Santo, Alto Universitário, s/n, Guararema, Alegre, Espírito Santo, CEP 29.500-000, Brazil
| | - Marcos Santos Zanini
- Programa de Pós-Graduação em Ciências Veterinárias, Universidade Federal do Espírito Santo, Alto Universitário, s/n, Guararema, Alegre, Espírito Santo, CEP 29.500-000, Brazil
- Departamento de Medicina Veterinária, Universidade Federal do Espírito Santo, Alto Universitário, s/n, Guararema, Alegre, Espírito Santo, CEP 29.500-000, Brazil
| | - Maria Aparecida da Silva
- Programa de Pós-Graduação em Ciências Veterinárias, Universidade Federal do Espírito Santo, Alto Universitário, s/n, Guararema, Alegre, Espírito Santo, CEP 29.500-000, Brazil.
- Departamento de Biologia, Centro de Ciências Exatas, Naturais e da Saúde, Alto Universitário, s/n, Guararema, Alegre, Espírito Santo, CEP 29.500-000, Brazil.
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A Systematic Review (1990-2021) of Wild Animals Infected with Zoonotic Leishmania. Microorganisms 2021; 9:microorganisms9051101. [PMID: 34065456 PMCID: PMC8160881 DOI: 10.3390/microorganisms9051101] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Revised: 05/09/2021] [Accepted: 05/14/2021] [Indexed: 12/17/2022] Open
Abstract
Leishmaniasis are neglected diseases caused by several species of Leishmania that affect humans and many domestic and wild animals with a worldwide distribution. The objectives of this review are to identify wild animals naturally infected with zoonotic Leishmania species as well as the organs infected, methods employed for detection and percentage of infection. A literature search starting from 1990 was performed following the PRISMA methodology and 161 reports were included. One hundred and eighty-nine species from ten orders (i.e., Carnivora, Chiroptera, Cingulata, Didelphimorphia, Diprotodontia, Lagomorpha, Eulipotyphla, Pilosa, Primates and Rodentia) were reported to be infected, and a few animals were classified only at the genus level. An exhaustive list of species; diagnostic techniques, including PCR targets; infected organs; number of animals explored and percentage of positives are presented. L. infantum infection was described in 98 wild species and L. (Viania) spp. in 52 wild animals, while L. mexicana, L. amazonensis, L. major and L. tropica were described in fewer than 32 animals each. During the last decade, intense research revealed new hosts within Chiroptera and Lagomorpha. Carnivores and rodents were the most relevant hosts for L. infantum and L. (Viannia) spp., with some species showing lesions, although in most of the studies clinical signs were not reported.
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15
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Benítez ÁJ, Ricardo-Caldera D, Atencia-Pineda M, Ballesteros-Correa J, Chacón-Pacheco J, Hoyos-López R. DNA barcoding of bats (Chiroptera) from the Colombian northern region. MAMMALIA 2021. [DOI: 10.1515/mammalia-2020-0138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Bats are mammals of great ecological and medical importance, which have associations with different pathogenic microorganisms. DNA barcoding is a tool that can expedite species identification using short DNA sequences. In this study, we assess the DNA barcoding methodology in bats from the Colombian Northern region, specifically in the Córdoba department. Cytochrome oxidase subunit I (COI) gene sequences of nine bat species were typified, and their comparison with other Neotropic samples revealed that this marker is suitable for individual species identification, with ranges of intra-species variation from 0.1 to 0.9%. Bat species clusters are well supported and differentiated, showing average genetic distances ranging from 3% between Artibeus lituratus and Artibeus planirostris, up to 27% between Carollia castanea and Molossus molossus. C. castanea and Glossophaga soricina show geographical structuring in the Neotropic. The findings reported in this study confirm DNA barcoding usefulness for fast species identification of bats in the region.
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Affiliation(s)
- Álvaro J. Benítez
- Facultad de Ciencias de la Salud, Grupo de investigación en Enfermedades Tropicales y Resistencia Bacteriana , Universidad del Sinú , Calle 38 Cra. 1 W, Barrio Juan XXIII , 230001 Montería , Córdoba , Colombia
- Grupo de Investigación Biodiversidad Unicórdoba , Universidad de Córdoba , 230002 Montería , Córdoba , Colombia
| | - Dina Ricardo-Caldera
- Facultad de Ciencias de la Salud, Grupo de investigación en Enfermedades Tropicales y Resistencia Bacteriana , Universidad del Sinú , Calle 38 Cra. 1 W, Barrio Juan XXIII , 230001 Montería , Córdoba , Colombia
| | - María Atencia-Pineda
- Facultad de Ciencias de la Salud, Grupo de investigación en Enfermedades Tropicales y Resistencia Bacteriana , Universidad del Sinú , Calle 38 Cra. 1 W, Barrio Juan XXIII , 230001 Montería , Córdoba , Colombia
| | - Jesús Ballesteros-Correa
- Grupo de Investigación Biodiversidad Unicórdoba , Universidad de Córdoba , 230002 Montería , Córdoba , Colombia
| | - Julio Chacón-Pacheco
- Grupo de Investigación Biodiversidad Unicórdoba , Universidad de Córdoba , 230002 Montería , Córdoba , Colombia
| | - Richard Hoyos-López
- Facultad de Ciencias de la Salud, Grupo de investigación en Enfermedades Tropicales y Resistencia Bacteriana , Universidad del Sinú , Calle 38 Cra. 1 W, Barrio Juan XXIII , 230001 Montería , Córdoba , Colombia
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16
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Measuring spatial co-occurrences of species potentially involved in Leishmania transmission cycles through a predictive and fieldwork approach. Sci Rep 2021; 11:6789. [PMID: 33762622 PMCID: PMC7990927 DOI: 10.1038/s41598-021-85763-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2019] [Accepted: 03/04/2021] [Indexed: 11/19/2022] Open
Abstract
The Leishmaniases are a group of neglected tropical diseases caused by different species of the protozoan parasite Leishmania, transmitted to its mammalian hosts by the bites of several species of female Phlebotominae sand flies. Many factors have contributed to shifts in the disease distribution and eco epidemiological outcomes, resulting in the emergence of Cutaneous Leishmaniasis outbreaks and the incrimination of vectors in unreported regions. New research development is vital for establishing the new paradigms of the present transmission cycles, hoping to facilitate new control strategies to reduce parasite transmission. Hereafter, this work aims to model and infer the current transmission cycles of Cutaneous Leishmaniasis in Colombia defined by vector and mammal species distributed and interacting in the different regions and validate them by performing sand fly and mammal collections. Vector-host co-occurrences were computed considering five ecoregions of the Colombian territory defined by the World Wide Fund for Nature (WWF) and downloaded from The Nature Conservancy TNC Maps website. Four validation sites were selected based on Cutaneous Leishmaniasis prevalence reports. Sand flies and mammals captured in the field were processed, and species were defined using conventional taxonomic guidelines. Detection of infection by Leishmania was performed to identify transmission cycles in the selected areas. This study uses predictive models based on available information from international gazetteers and fieldwork to confirm sand fly and mammalian species' sustaining Leishmania transmission cycles. Our results show an uneven distribution of mammal samples in Colombia, possibly due to sampling bias, since only two departments contributed 50% of the available samples. Bats were the vertebrates with the highest score values, suggesting substantial spatial overlap with sand flies than the rest of the vertebrates evaluated. Fieldwork allowed identifying three circulating Leishmania species, isolated from three sand fly species. In the Montane Forest ecosystem, one small marsupial, Gracilinanus marica, was found infected with Leishmania panamensis, constituting the first record of this species infected with Leishmania. In the same locality, an infected sand fly, Pintomyia pia, was found. The overall results could support the understanding of the current transmission cycles of Leishmaniasis in Colombia.
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Ikeda P, Marinho Torres J, Perles L, Lourenço EC, Herrera HM, de Oliveira CE, Zacarias Machado R, André MR. Intra- and Inter-Host Assessment of Bartonella Diversity with Focus on Non-Hematophagous Bats and Associated Ectoparasites from Brazil. Microorganisms 2020; 8:E1822. [PMID: 33227996 PMCID: PMC7699196 DOI: 10.3390/microorganisms8111822] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2020] [Revised: 10/01/2020] [Accepted: 10/01/2020] [Indexed: 12/28/2022] Open
Abstract
The relationship among bats, ectoparasites and associated microorganisms is important to investigate how humans can become exposed to zoonotic agents. Even though the diversity of Bartonella spp. in bats and ectoparasites has been previously reported, the occurrence of gltA genotypes within hosts has not been assessed so far. We aimed to investigate the genetic diversity of Bartonella spp. in non-hematophagous bats and associated ectoparasites by assessing cloned gltA Bartonella genotypes in intra- and inter-hosts levels, as well as by using three additional molecular markers. Overall, 13.5% (18/133) bat blood samples, 17.18% bat flies (11/64) and 23.8% (5/21) Macronyssidae mite pools showed to be positive for Bartonella spp. Seventeen positive samples were submitted to gltA-cloning and three clones were sequenced for each sample. We also obtained 11, seven and three sequences for nuoG, rpoB and ftsZ genes, respectively. None were positive for the other target genes. We found at least two genotypes among the three gltA-cloned sequences from each sample, and 13 between all the 51 sequences. Among the nuoG, rpoB and ftsZ sequences we found eight, five and three genotypes, respectively. In the phylogenetic analysis, the sequences were positioned mainly in groups related to Bartonella identified in rodents, bats and bat flies. Herein, we showed the genetic diversity of Bartonella in bat's blood and associated ectoparasites samples at both intra- and inter-host levels.
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Affiliation(s)
- Priscila Ikeda
- Laboratório de Imunoparasitologia, Departamento de Patologia, Reprodução e Saúde Única, Universidade Estadual “Júlio de Mesquita Filho”, Jaboticabal, São Paulo 14884-900, Brazil; (P.I.); (L.P.); (R.Z.M.)
| | - Jaire Marinho Torres
- Laboratório de Biologia Parasitária, Programa de Pós Graduação em Biotecnologia, Universidade Católica Dom Bosco, Campo Grande, Mato Grosso do Sul 79117-900, Brazil; (J.M.T.); (H.M.H.); (C.E.d.O.)
| | - Lívia Perles
- Laboratório de Imunoparasitologia, Departamento de Patologia, Reprodução e Saúde Única, Universidade Estadual “Júlio de Mesquita Filho”, Jaboticabal, São Paulo 14884-900, Brazil; (P.I.); (L.P.); (R.Z.M.)
| | - Elizabete Captivo Lourenço
- Laboratório de Ecologia de Mamíferos, Universidade do Estado do Rio de Janeiro, Rio de Janeiro 20550-013, Brazil;
| | - Heitor Miraglia Herrera
- Laboratório de Biologia Parasitária, Programa de Pós Graduação em Biotecnologia, Universidade Católica Dom Bosco, Campo Grande, Mato Grosso do Sul 79117-900, Brazil; (J.M.T.); (H.M.H.); (C.E.d.O.)
| | - Carina Elisei de Oliveira
- Laboratório de Biologia Parasitária, Programa de Pós Graduação em Biotecnologia, Universidade Católica Dom Bosco, Campo Grande, Mato Grosso do Sul 79117-900, Brazil; (J.M.T.); (H.M.H.); (C.E.d.O.)
| | - Rosangela Zacarias Machado
- Laboratório de Imunoparasitologia, Departamento de Patologia, Reprodução e Saúde Única, Universidade Estadual “Júlio de Mesquita Filho”, Jaboticabal, São Paulo 14884-900, Brazil; (P.I.); (L.P.); (R.Z.M.)
| | - Marcos Rogério André
- Laboratório de Imunoparasitologia, Departamento de Patologia, Reprodução e Saúde Única, Universidade Estadual “Júlio de Mesquita Filho”, Jaboticabal, São Paulo 14884-900, Brazil; (P.I.); (L.P.); (R.Z.M.)
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Jaimes-Dueñez J, Cantillo-Barraza O, Triana-Chávez O, Mejia-Jaramillo AM. Molecular surveillance reveals bats from eastern Colombia infected with Trypanosoma theileri and Trypanosoma wauwau-like parasites. Prev Vet Med 2020; 184:105159. [PMID: 33038611 DOI: 10.1016/j.prevetmed.2020.105159] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Revised: 08/22/2020] [Accepted: 09/18/2020] [Indexed: 10/23/2022]
Abstract
Several species of trypanosomes can infect bats (Chiroptera), but current information about bat trypanosomes in Colombia is scarce. The objectives of this study were to estimate the infection rate and to characterize the trypanosome species infecting bats from three rural regions near the municipality of Cumaribo in Vichada, Colombia. Blood samples were collected from 39 bats. DNA was extracted from the blood samples and analyzed using nuclear genetic markers (SSU rDNA, ITS rDNA, and cathepsin genes) to discriminate among trypanosome species. Trypanosomes were detected in 66.7 % (26/39) of blood samples using PCR; 61.5 % (24/39) of infections were identified as Trypanosoma theileri and 5.1 % (2/39) as T. wauwau-like parasites. The phylogeographic analysis revealed that our T. theileri sequences were associated with the TthIIB genotype from cattle in Brazil and Venezuela. The T. wauwau-like parasites represent a new genotype of the species and were found in Molossus molossus and Platyrrhinus helleri bats. These data represent the first evidence of this trypanosome in both Colombia, and in these species of bats. Bat infections with T. theileri suggest an important role of these hosts in maintaining this genotype, probably acquired by ingesting insect vectors. The T. wauwau-like genotype in new mammalian host species supports the 'bat seeding' hypothesis of the T. cruzi clade. The epidemiological and evolutionary implications of these findings are discussed.
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Affiliation(s)
- Jeiczon Jaimes-Dueñez
- Grupo BCEI, Universidad de Antioquia UdeA, Calle 70 No. 52-21, Medellín, Colombia; Grupo GRICA, Universidad Cooperativa de Colombia UCC, Calle 30 No. 33-51, Bucaramanga, Colombia.
| | | | - Omar Triana-Chávez
- Grupo BCEI, Universidad de Antioquia UdeA, Calle 70 No. 52-21, Medellín, Colombia
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19
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First detection of Leishmania infantum in common urban bats Pipistrellus pipistrellus in Europe. Res Vet Sci 2020; 132:172-176. [PMID: 32593861 DOI: 10.1016/j.rvsc.2020.06.019] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Revised: 06/13/2020] [Accepted: 06/17/2020] [Indexed: 11/22/2022]
Abstract
Leishmania infantum is a protozoan causing leishmaniasis in humans and in dogs, among other animals, which is an endemic disease in the Mediterranean basin. In recent years, the role of wildlife as a possible reservoir of the disease was analyzed and several species of carnivores were reported to have the highest infection rates, with foxes and wolves being the more widely studied species; the role of rabbits and hares as reservoirs of leishmaniasis has also been described. In addition, several studies highlighted the role of bats as suitable hosts for Leishmania species (L. braziliensis, L. major, L. mexicana, and L. tropica) in South and Central America and Africa, but no Leishmania spp. infection in Chiroptera has been reported in Europe. In this study, samples from spleen, hair, and blood were analyzed to detect L. infantum DNA in bats from the Community of Madrid (Spain). Infection by L. infantum was detected in 59.2% of the bats studied (n = 16/27), with the spleen being selected as the site for detection, yielding 14/16 positive results (87.5% sensitivity), followed by hair (n = 7/16) and blood (n = 6/16). In two animals, samples from all three anatomical sites tested positive (7.4% of the total animals), while in four animals the spleen and hair samples tested positive (14.8%), in one animal the blood and hair samples tested positive (3.7%), and in another animal the blood sample only tested positive (3.7%). This is the first report of L. infantum detection in the common urban bat (Pipistrellus pipistrellus) in Europe.
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Castro LS, Dorval ME, Matheus LM, Bednaski AV, Facco GG, Silveira M, Santos CF, Gontijo CM, Oliveira APG, Ferreira EC. Leishmania presence in bats in areas endemic for leishmaniasis in central-west Brazil. Int J Parasitol Parasites Wildl 2020; 11:261-267. [PMID: 32195111 PMCID: PMC7078454 DOI: 10.1016/j.ijppaw.2020.02.008] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Revised: 01/06/2020] [Accepted: 02/17/2020] [Indexed: 11/24/2022]
Abstract
Leishmaniasis involves the participation of several species of both wild and domestic mammal hosts and sandfly vectors, which demonstrates the eco-epidemiological complexity observed in this disease. Bats are among the most abundant types of mammals and the scarcity of research on Leishmania infection in these animals gives evidence of the importance of new studies that aim to clarify this relationship. This study aimed to detect the Leishmania spp. in bats. 146 bats, representing 16 different species belonging to the Molossidae, Vespertilionidae, and Phyllostomidae families, were received and processed for collection of tissues. Skin samples were collected from 100% of the bats, and liver samples were collected from 87% (n = 127). After evaluating the quality of the DNA extracted by means of PCR directed to the IRBP gene, the samples considered suitable for the Leishmania detection test were submitted for PCR directed to Leishmania kDNA, and to confirm positivity, were tested to the SSUrRNA gene-directed Nested-PCR. The Leishmania presence in the species Molossus pretiosus, Nyctinomops macrotis, and Lasiurus cinereus are the first reports this encounter in these species of bats in Brazil. Furthermore, new species of bats as possible hosts for L. infantum are reported, such as Molossus pretiosus, Myotis nigricans, Nyctinomops laticaudatus, Nyctinomops macrotis, and, for L. braziliensis, Lasiurus cinereus and Cynomops planirostris. These findings in bats in an area endemic for leishmaniasis indicate that these animals may be involved in sustaining the disease cycle in this location.
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Affiliation(s)
- Ludiele S. Castro
- Programa de Pós-Graduação em Doenças Infecciosas e Parasitárias, Universidade Federal de Mato Grosso do Sul, Campo Grande, MS, Brazil
| | - Maria E.C. Dorval
- Programa de Pós-Graduação em Doenças Infecciosas e Parasitárias, Universidade Federal de Mato Grosso do Sul, Campo Grande, MS, Brazil
| | - Larissa M.D. Matheus
- Programa de Pós-Graduação em Doenças Infecciosas e Parasitárias, Universidade Federal de Mato Grosso do Sul, Campo Grande, MS, Brazil
| | | | | | - Mauricio Silveira
- Programa de Pós-graduação em Ecologia e Conservação, Universidade Federal de Mato Grosso do Sul, Campo Grande, MS, Brazil
- Universidade de Brasília, Instituto de Ciências Biológicas, Departamento de Zoologia, Laboratório de Biologia eConservação de Morcegos, 70910-900, Brasília, DF, Brazil
| | - Carolina F. Santos
- Programa de Pós-graduação em Ecologia e Conservação, Universidade Federal de Mato Grosso do Sul, Campo Grande, MS, Brazil
| | - Célia M.F. Gontijo
- Centro de Pesquisas René Rachou, Fiocruz Minas Gerais, Fundação Oswaldo Cruz, Belo Horizonte, MG, Brazil
| | | | - Eduardo C. Ferreira
- Programa de Pós-Graduação em Doenças Infecciosas e Parasitárias, Universidade Federal de Mato Grosso do Sul, Campo Grande, MS, Brazil
- Universidade Anhanguera-UNIDERP, Campo Grande, MS, Brazil
- Fiocruz Mato Grosso do Sul, Fundação Oswaldo Cruz, Campo Grande, MS, Brazil
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21
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Escobar TA, Dowich G, Dos Santos TP, Zuravski L, Duarte CA, Lübeck I, Manfredini V. Assessment of Leishmania infantum infection in equine populations in a canine visceral leishmaniosis transmission area. BMC Vet Res 2019; 15:381. [PMID: 31666069 PMCID: PMC6821015 DOI: 10.1186/s12917-019-2108-1] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Accepted: 09/20/2019] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Leishmaniosis, zoonosis that produces significant public health impacts, is caused by Leishmania infantum. Canines are the main domestic reservoir and, besides humans, other species of mammals could be infected when living in endemic areas. In this study, we detected equine Leishmania infantum infections in a canine visceral leishmaniosis transmission area and evaluated the clinical, haematological, biochemical and oxidative stress disorders. This study was conducted in Uruguaiana, Rio Grande do Sul, south of Brazil. Peripheral blood samples were collected from 124 animals (98 horses and 26 dogs) of both genders and several breeds after they underwent general and dermatologic examinations. RESULTS Twenty five Leishmania infantum infected animals (20.16%), 14 horses and 11 dogs were detected by PCR (Polymerase Chain Reaction) amplification of kinetoplast DNA regions with 96% homology to Leishmania infantum (GenBank Accession No. L 19877.1). The clinical and haematological alterations of infected equines were skin lesions, nodules, lymphadenopathy, decreased levels in red blood cells and haematocrit (p < 0.05) and increase in urea serum concentration (p < 0.05), while CVL presented a decrease in red blood cells counts (p < 0.05), increase in lymphocytes (p < 0.05), and decrease in neutrophil-lymphocyte ratio (p < 0.05). Oxidative stress markers of plasma protein carbonyl and plasma lipid peroxidation were not statistically significant (p > 0.05) in both species. CONCLUSIONS To our knowledge, this has been the first leishmaniosis equine survey performed in south of Brazil, caused by Leishmania infantum that were able to initially identify haematological and biochemical changes in the species, even in asymptomatic animals. We present evidence supporting those findings of haematological and biochemical changes could be related to infection. Surprisingly, the clinical manifestations of equine infection were similar to those found in canine visceral leishmaniosis. The equine population could be play an important role in the cycle of leishmaniosis in south Brazil and consequently indicates a great risk of public health. This evaluation of infected animals is important to establish the clinical and laboratory parameters involved in the disease progression.
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Affiliation(s)
- Taiane Acunha Escobar
- Biochemistry Postgraduate Program, Federal University of Pampa, 118 BR 472, Uruguaiana, Rio Grande do Sul, Km 592, Brazil.
| | - Gabriela Dowich
- Animal Science, Postgraduate, Federal University of Pampa, 118 BR 472, Uruguaiana, Rio Grande do Sul, Km 592, Brazil
| | | | - Luísa Zuravski
- Biochemistry Postgraduate Program, Federal University of Pampa, 118 BR 472, Uruguaiana, Rio Grande do Sul, Km 592, Brazil
| | - Claudia Acosta Duarte
- Veterinary Medicine, Federal University of Pampa, 118, BR 472, Uruguaiana, Rio Grande do Sul, Km 592, Brazil
| | - Irina Lübeck
- Veterinary Medicine, Federal University of Pampa, 118, BR 472, Uruguaiana, Rio Grande do Sul, Km 592, Brazil
| | - Vanusa Manfredini
- Biochemistry Postgraduate Program, Federal University of Pampa, 118 BR 472, Uruguaiana, Rio Grande do Sul, Km 592, Brazil
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Galluzzi L, Ceccarelli M, Diotallevi A, Menotta M, Magnani M. Real-time PCR applications for diagnosis of leishmaniasis. Parasit Vectors 2018; 11:273. [PMID: 29716641 PMCID: PMC5930967 DOI: 10.1186/s13071-018-2859-8] [Citation(s) in RCA: 86] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Accepted: 04/18/2018] [Indexed: 11/10/2022] Open
Abstract
Leishmaniasis is a vector-borne disease caused by many Leishmania species, which can infect both humans and other mammals. Leishmaniasis is a complex disease, with heterogeneous clinical manifestations ranging from asymptomatic infections to lesions at cutaneous sites (cutaneous leishmaniasis), mucosal sites (mucocutaneous leishmaniasis) or in visceral organs (visceral leishmaniasis), depending on the species and host characteristics. Often, symptoms are inconclusive and leishmaniasis can be confused with other co-endemic diseases. Moreover, co-infections (mainly with HIV in humans) can produce atypical clinical presentations. A correct diagnosis is crucial to apply the appropriate treatment and the use of molecular techniques in diagnosis of leishmaniasis has become increasingly relevant due to their remarkable sensitivity, specificity and possible application to a variety of clinical samples. Among them, real-time PCR (qPCR)-based approaches have become increasingly popular in the last years not only for detection and quantification of Leishmania species but also for species identification. However, despite qPCR-based methods having proven to be very effective in the diagnosis of leishmaniasis, a standardized method does not exist. This review summarizes the qPCR-based methods in the diagnosis of leishmaniasis focusing on the recent developments and applications in this field.
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Affiliation(s)
- Luca Galluzzi
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, via Saffi 2, 61029 Urbino, PU Italy
| | - Marcello Ceccarelli
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, via Saffi 2, 61029 Urbino, PU Italy
| | - Aurora Diotallevi
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, via Saffi 2, 61029 Urbino, PU Italy
| | - Michele Menotta
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, via Saffi 2, 61029 Urbino, PU Italy
| | - Mauro Magnani
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, via Saffi 2, 61029 Urbino, PU Italy
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Canine Leishmaniasis: An Overview of the Current Status and Strategies for Control. BIOMED RESEARCH INTERNATIONAL 2018; 2018:3296893. [PMID: 29789784 PMCID: PMC5896350 DOI: 10.1155/2018/3296893] [Citation(s) in RCA: 77] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/02/2017] [Accepted: 02/18/2018] [Indexed: 02/02/2023]
Abstract
Canine leishmaniasis (CanL) is a vector-borne disease caused by Leishmania infantum and is transmitted by female phlebotomine sand flies primarily between animals and secondarily to humans. The course of infection may be different from one individual dog to another, ranging from spontaneous cure to acute evolution that leads to death, if proper management and therapy are not adopted. A parasitological cure is rarely achieved and clinical recurrences in CanL are frequent. Vaccination associated with the use of topical insecticides is undoubtedly the most effective form of prevention and control of the disease. In order to integrate the most important scientific knowledge of the literature in one objective publication, this review proposes a short overview of the main points of CanL.
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Lourenço JLM, Minuzzi-Souza TT, Silva LR, Oliveira AC, Mendonça VJ, Nitz N, Aguiar LM, Gurgel-Gonçalves R. High frequency of trypanosomatids in gallery forest bats of a Neotropical savanna. Acta Trop 2018; 177:200-206. [PMID: 29050949 DOI: 10.1016/j.actatropica.2017.10.012] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2017] [Revised: 08/31/2017] [Accepted: 10/13/2017] [Indexed: 01/11/2023]
Abstract
Bats are well-known hosts of trypanosomatids, though information about their role as reservoirs of these protozoans in the Brazilian savanna is poorly known. We aimed to analyze the occurrence of trypanosomatid species in bats occurring in remnants of gallery forests of Brasília, Federal District of Brazil. We sampled bats using mist nets in six sites, and we collected blood, wing fragments and oral swab samples from all captured individuals. Trypanosomatids were identified in the captured bats through sequencing of the SSUrRNA region and kDNA qPCR. We found no parasite in blood smears of 146 individuals of 14 species captured, but blood cultures were positive for nine bats. We detected trypanosomatids molecularly in 111 (76%) specimens of all bat species in the studied areas. Most of the infected bats had Leishmania-like DNA detected in blood and swab samples of the oral mucosa. We distinguished three species of Trypanosoma (Trypanosoma dionisii, T. rangeli and T. cruzi) in Carollia perspicillata. SSUrRNA PCR of oral samples is a non-invasive and practical method for identification of trypanosomatid species in bats. Our results support our belief that bats could be potential reservoirs for Trypanosoma and Leishmania-like species in the enzootic cycle of these parasites in gallery forests of the Brazilian Cerrado biome.
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Abstract
Leishmaniasis is a complex of zoonotic diseases caused by parasites of the genus Leishmania, which can develop in domestic as well as wild animals and humans throughout the world. Currently, this disease is spreading in rural and urban areas of non-endemic regions in Brazil. Recently, bats have gained epidemiological significance in leishmaniasis due to its close relationship with human settlements. In this study, we investigated the presence of Leishmania spp. DNA in blood samples from 448 bats belonging to four families representing 20 species that were captured in the Triangulo Mineiro and Alto Paranaiba areas of Minas Gerais State (non-endemic areas for leishmaniasis), Brazil. Leishmania spp. DNA was detected in 8·0% of the blood samples, 41·6% of which were Leishmania infantum, 38·9% Leishmania amazonensis and 19·4% Leishmania braziliensis. No positive correlation was found between Leishmania spp. and bat food source. The species with more infection rates were the insectivorous bats Eumops perotis; 22·2% (4/18) of which tested positive for Leishmania DNA. The presence of Leishmania in the bat blood samples, as observed in this study, represents epidemiological importance due to the absence of Leishmaniasis cases in the region.
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