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van Henten S, Kassa M, Fikre H, Melkamu R, Mekonnen T, Dessie D, Mulaw T, Bogale T, Engidaw A, Yeshanew A, Cnops L, Vogt F, Moons KGM, van Griensven J, Pareyn M. Evaluation of Less Invasive Sampling Tools for the Diagnosis of Cutaneous Leishmaniasis. Open Forum Infect Dis 2024; 11:ofae113. [PMID: 38560600 PMCID: PMC10977625 DOI: 10.1093/ofid/ofae113] [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: 08/18/2023] [Accepted: 02/26/2024] [Indexed: 04/04/2024] Open
Abstract
Background Diagnosis of cutaneous leishmaniasis (CL) usually relies on invasive samples, but it is unclear whether more patient-friendly tools are good alternatives for diverse lesions when used with polymerase chain reaction (PCR). Methods Patients with suspected CL were enrolled consecutively in a prospective diagnostic accuracy study. We compared dental broach, tape disc, and microbiopsy samples with PCR as index tests, using PCR with skin slit samples as reference test. Subsequently, we constructed a composite reference test including microscopy, the 3 index tests and skin slit PCR, and we compared these same tests with the composite reference test. We assessed diagnostic accuracy parameters with 95% confidence intervals for all comparisons. Results Among 344 included patients, 282 (82.0%) had CL diagnosed, and 62 (18.0%) CL absence, by skin slit PCR. The sensitivity and specificity by PCR were 89.0% (95% confidence interval, 84.8%-92.1%) and 58.1% (45.7%-69.5%), respectively, for dental broach, 96.1% (93.2%-97.8%) and 27.4% (17.9%-39.6%) for tape disc, and 74.8% (66.3%-81.7%) and 72.7% (51.8%-86.8%) for microbiopsy. Several reference test-negative patients were consistently positive with the index tests. Using the composite reference test, dental broach, and skin slit had similar diagnostic performance. Discussion Dental broach seems a less invasive but similarly accurate alternative to skin slit for diagnosing CL when using PCR. Tape discs lack specificity and seem unsuitable for CL diagnosis without cutoff. Reference tests for CL are problematic, since using a single reference test is likely to miss true cases, while composite reference tests are often biased and impractical as they require multiple tests.
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Affiliation(s)
- Saskia van Henten
- Department of Clinical Sciences, Institute of Tropical Medicine, Antwerp, Belgium
| | - Mekibib Kassa
- Leishmaniasis Research and Treatment Center, University of Gondar Hospital, Gondar, Ethiopia
| | - Helina Fikre
- Leishmaniasis Research and Treatment Center, University of Gondar Hospital, Gondar, Ethiopia
| | - Roma Melkamu
- Leishmaniasis Research and Treatment Center, University of Gondar Hospital, Gondar, Ethiopia
| | - Tigist Mekonnen
- Leishmaniasis Research and Treatment Center, University of Gondar Hospital, Gondar, Ethiopia
| | - Dilargachew Dessie
- Leishmaniasis Research and Treatment Center, University of Gondar Hospital, Gondar, Ethiopia
| | - Tadele Mulaw
- Leishmaniasis Research and Treatment Center, University of Gondar Hospital, Gondar, Ethiopia
| | - Tadfe Bogale
- Leishmaniasis Research and Treatment Center, University of Gondar Hospital, Gondar, Ethiopia
| | - Asinakew Engidaw
- Leishmaniasis Research and Treatment Center, University of Gondar Hospital, Gondar, Ethiopia
| | - Arega Yeshanew
- Leishmaniasis Research and Treatment Center, University of Gondar Hospital, Gondar, Ethiopia
| | - Lieselotte Cnops
- Department of Clinical Sciences, Institute of Tropical Medicine, Antwerp, Belgium
| | - Florian Vogt
- Department of Clinical Sciences, Institute of Tropical Medicine, Antwerp, Belgium
- National Centre for Epidemiology and Population Health, Research School of Population Health, College of Health and Medicine, Australian National University, Canberra, Australia Capital Territory, Australia
- The Kirby Institute, University of New South Wales, Sydney, New South Wales, Australia
| | - Karel G M Moons
- Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht University, Utrecht, the Netherlands
| | - Johan van Griensven
- Department of Clinical Sciences, Institute of Tropical Medicine, Antwerp, Belgium
| | - Myrthe Pareyn
- Department of Clinical Sciences, Institute of Tropical Medicine, Antwerp, Belgium
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Cutaneous Leishmaniasis: A 2022 Updated Narrative Review into Diagnosis and Management Developments. Am J Clin Dermatol 2022; 23:823-840. [PMID: 36103050 PMCID: PMC9472198 DOI: 10.1007/s40257-022-00726-8] [Citation(s) in RCA: 53] [Impact Index Per Article: 26.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/16/2022] [Indexed: 01/10/2023]
Abstract
This review is an update of an earlier narrative review published in 2015 on developments in the clinical management of cutaneous leishmaniasis (CL) including diagnosis, treatment, prevention and control measurements. CL is a vector-borne infection caused by the protozoan parasite Leishmania. The vector is the female sandfly. Globally, CL affects 12 million cases and annually 2 million new cases occur. CL is endemic in almost 100 countries and the total risk population is approximately 350 million people. WHO lists CL an emerging and uncontrolled disease and a neglected tropical disease. Local experience-based evidence remains the mainstay for the management of CL. Whereas intralesional therapeutic options are the first treatment option for most CL patients, those with mucocutaneous and disseminated involvement require a systemic therapeutic approach. Moreover, different Leishmania species can vary in their treatment outcomes. Therefore, species determination is critical for optimal CL clinical management. New DNA techniques allow for relatively easy Leishmania species determination, yet they are not easily implemented in resource-limited settings. There is a desperate need for novel, less toxic, and less painful treatment options, especially for children with CL. Yet, the large and well conducted studies required to provide the necessary evidence are lacking. To further control and potentially eliminate CL, we urgently need to improve vector control, and diagnostics, and we require efficient and safe vaccines. Alas, since CL primarily affects poor people, biotechnical companies dedicate little investment into the research programs that could lead to diagnostic, pharmaceutical, and vaccine innovations.
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Mendoza Y, Colmenares A, Hernández‐Pereira CE, Shaban MV, Mogollón A, Morales‐Panza R, Suarez‐Alvarado MJ, Sordillo EM, Kato H, Paniz‐Mondolfi AE. Cutaneous leishmaniosis due to
Leishmania mexicana
in a cat treated with cryotherapy. Vet Dermatol 2022; 33:450-453. [DOI: 10.1111/vde.13083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 02/26/2022] [Accepted: 03/02/2022] [Indexed: 11/29/2022]
Affiliation(s)
- Yeimar Mendoza
- Health Sciences Department, School of Veterinary Medicine Universidad Centrooccidental Lisandro Alvarado Cabudare Lara State Venezuela
| | - Alegria Colmenares
- Health Sciences Department, School of Veterinary Medicine Universidad Centrooccidental Lisandro Alvarado Cabudare Lara State Venezuela
| | - Carlos E. Hernández‐Pereira
- Instituto de Investigaciones Biomédicas IDB/ Incubadora Venezolana de la Ciencia Cabudare Lara State Venezuela
| | - Maryia V. Shaban
- Instituto de Investigaciones Biomédicas IDB/ Incubadora Venezolana de la Ciencia Cabudare Lara State Venezuela
| | - Alexander Mogollón
- Instituto de Investigaciones Biomédicas IDB/ Incubadora Venezolana de la Ciencia Cabudare Lara State Venezuela
| | - R.J. Morales‐Panza
- Instituto de Investigaciones Biomédicas IDB/ Incubadora Venezolana de la Ciencia Cabudare Lara State Venezuela
| | - Maria Jose Suarez‐Alvarado
- Health Sciences Department, School of Veterinary Medicine Universidad Centrooccidental Lisandro Alvarado Cabudare Lara State Venezuela
| | - Emilia M. Sordillo
- Department of Medicine, Surgery and Pathology School of Veterinary Medicine Universidad Centroccidental Lisandro Alvarado Cabudare Lara State Venezuela
- Clinical Microbiology Laboratory, Department of Pathology, Molecular, and Cell‐Based Medicine Icahn School of Medicine at Mount Sinai New York NY USA
- Department of Pathology, Molecular, and Cell‐Based Medicine Icahn School of Medicine at Mount Sinai New York NY USA
| | - Hirotomo Kato
- Division of Medical Zoology, Department of Infection and Immunity Jichi Medical University Shimotsuke Japan
| | - Alberto E. Paniz‐Mondolfi
- Health Sciences Department, School of Veterinary Medicine Universidad Centrooccidental Lisandro Alvarado Cabudare Lara State Venezuela
- Department of Medicine, Surgery and Pathology School of Veterinary Medicine Universidad Centroccidental Lisandro Alvarado Cabudare Lara State Venezuela
- Clinical Microbiology Laboratory, Department of Pathology, Molecular, and Cell‐Based Medicine Icahn School of Medicine at Mount Sinai New York NY USA
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4
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Canché-Pool EB, Canto-Hau DM, Vargas-Meléndez MA, Tello-Martín R, Reyes-Novelo E, Escobedo-Ortegón FJ, Ruiz-Piña HA, Cambranes-Puc LH, Torres-Castro JR, Palacio-Vargas JA, Durán-Caamal C, Cerón-Espinosa J, Carpio-Pedroza JC, Rivera-Hernández OC. Report of autochthonous cases of localized cutaneous leishmaniasis caused by Leishmania (Leishmania) mexicana in vulnerable, susceptible areas of Southeastern Mexico. Rev Inst Med Trop Sao Paulo 2022; 64:e35. [PMID: 35648988 PMCID: PMC9134861 DOI: 10.1590/s1678-9946202264035] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Accepted: 03/24/2022] [Indexed: 09/17/2023] Open
Abstract
Localized cutaneous leishmaniasis (LCL) is an endemic disease in several Mexican States with the main endemic areas located in the South-Southeast region of the country, where 90% of Leishmania (Leishmania) mexicana cases are registered. The Southeast region is located in the Yucatan Peninsula, including Campeche, Quintana Roo and Yucatan States. Campeche and Quintana Roo register more than 60% of the cases in the country each year, while in Yucatan the reports are of imported cases due to residents traveling to endemic areas. However, since 2015, autochthonous cases have been diagnosed by health authorities in municipalities with no previous transmission records. We aimed to identify Leishmania parasite species involved in autochthonous cases by means of the PCR technique. The present study included 13 autochthonous cases of LCL with clinical and parasitological diagnoses during 2018 and 2019 by health authorities, without specific identification of the causal agent. Tissue samples were taken by scraping the margins of active lesions and then they were spotted onto an FTATM Elute Microcard. Next, DNA was eluted and used for PCR amplification of specific Leishmania genus and L. (L.) mexicana species-specific fragments. Molecular analysis showed evidence that L. (L.) mexicana was the causal agent of LCL in 12 of the 13 patients; in one patient, PCR was not performed due to the patient's refusal to participate in the study. Identifying Leishmania species that cause LCL is necessary to define efficient treatment schemes and control strategies for the disease in vulnerable and susceptible areas of the Yucatan State's municipalities.
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Affiliation(s)
- Elsy Beatriz Canché-Pool
- Universidad Autónoma de Yucatán, Centro de Investigaciones Regionales “Dr. Hideyo Noguchi”, Mérida, Yucatán, México
| | - Dulce María Canto-Hau
- Universidad Autónoma de Yucatán, Centro de Investigaciones Regionales “Dr. Hideyo Noguchi”, Mérida, Yucatán, México
| | | | - Raúl Tello-Martín
- Universidad Autónoma de Yucatán, Centro de Investigaciones Regionales “Dr. Hideyo Noguchi”, Mérida, Yucatán, México
| | - Enrique Reyes-Novelo
- Universidad Autónoma de Yucatán, Centro de Investigaciones Regionales “Dr. Hideyo Noguchi”, Mérida, Yucatán, México
| | | | - Hugo Antonio Ruiz-Piña
- Universidad Autónoma de Yucatán, Centro de Investigaciones Regionales “Dr. Hideyo Noguchi”, Mérida, Yucatán, México
| | - Luis Humberto Cambranes-Puc
- Universidad Autónoma de Yucatán, Centro de Investigaciones Regionales “Dr. Hideyo Noguchi”, Mérida, Yucatán, México
| | | | | | - Celmy Durán-Caamal
- Servicios de Salud de Yucatán, Dirección de Prevención y Protección de la Salud, Mérida, Yucatán, México
| | - José Cerón-Espinosa
- Servicios de Salud de Yucatán, Centro Dermatológico de Yucatán, Mérida, Yucatán, México
| | - Juan Carlos Carpio-Pedroza
- Instituto de Diagnóstico y Referencia Epidemiológicos, Departamento de Parasitología, Ciudad de México, México
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5
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Rogers MJ, McManus DP, Muhi S, Gordon CA. Membrane Technology for Rapid Point-of-Care Diagnostics for Parasitic Neglected Tropical Diseases. Clin Microbiol Rev 2021; 34:e0032920. [PMID: 34378956 PMCID: PMC8404699 DOI: 10.1128/cmr.00329-20] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
Parasitic neglected tropical diseases (NTDs) affect over one billion people worldwide, with individuals from communities in low-socioeconomic areas being most at risk and suffering the most. Disease management programs are hindered by the lack of infrastructure and resources for clinical sample collection, storage, and transport and a dearth of sensitive diagnostic methods that are inexpensive as well as accurate. Many diagnostic tests and tools have been developed for the parasitic NTDs, but the collection and storage of clinical samples for molecular and immunological diagnosis can be expensive due to storage, transport, and reagent costs, making these procedures untenable in most areas of endemicity. The application of membrane technology, which involves the use of specific membranes for either sample collection and storage or diagnostic procedures, can streamline this process, allowing for long-term sample storage at room temperature. Membrane technology can be used in serology-based diagnostic assays and for nucleic acid purification prior to molecular analysis. This facilitates the development of relatively simple and rapid procedures, although some of these methods, mainly due to costs, lack accessibility in low-socioeconomic regions of endemicity. New immunological procedures and nucleic acid storage, purification, and diagnostics protocols that are simple, rapid, accurate, and cost-effective must be developed as countries progress control efforts toward the elimination of the parasitic NTDs.
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Affiliation(s)
- Madeleine J. Rogers
- School of Chemistry and Molecular Biosciences, University of Queensland, Brisbane, Queensland, Australia
- Molecular Parasitology Laboratory, QIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia
| | - Donald P. McManus
- Molecular Parasitology Laboratory, QIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia
| | - Stephen Muhi
- Victorian Infectious Diseases Service, The Royal Melbourne Hospital, Parkville, Victoria, Australia
| | - Catherine A. Gordon
- Molecular Parasitology Laboratory, QIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia
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6
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Travi BL, Delos Santos MB, Shelite TR, Santos RP, Rosales LA, Castellanos-Gonzalez A, Saldarriaga O, Melby PC. Diagnostic Efficacy of Recombinase-Polymerase-Amplification Coupled with Lateral Flow Strip Reading in Patients with Cutaneous Leishmaniasis from the Amazonas Rainforest of Perú. Vector Borne Zoonotic Dis 2021; 21:941-947. [PMID: 34665665 DOI: 10.1089/vbz.2021.0038] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
Abstract
Cutaneous leishmaniasis (CL) is highly prevalent in rural and sylvatic regions of Latin America, with an estimated 55,000 annual cases. Diagnosis in resource-limited areas still relies on microscopy of dermal scrapings, while more sensitive methods like PCR are not attainable due to costs and lack of adequate health infrastructure. Isothermal amplification of Leishmania DNA can be performed without sophisticated equipment and training and may become a point of care (POC) test for health care centers with scarce resources. We evaluated the efficacy of recombinase-polymerase-amplification (RPA-LF) to diagnose CL in 226 patients attending a clinic in Puerto Maldonado within the Peruvian Amazon basin. Conventional PCR targeting kinetoplast DNA (kDNA-PCR) was used as the gold standard. Eight of 226 patients were considered true negatives (microscopy, kDNA-PCR, and RPA-LF negative), while RPA-LF resulted positive in 186 of 204 kDNA-PCR positive patients, yielding 91.2% (confidence interval [CI] = 86.5-94.4%) sensitivity and 93% (CI 88.6-95.8%) positive predictive value. There were 14% (32/226) discrepant samples alternating positive and negative results in similar proportions between both tests. Quantitative PCR used to resolve the discrepancies suggested that they occurred in samples with scarce parasite numbers as determined by high cycle threshold (Ct) values (≥32; cutoff 35.5). Microscopy had the lowest sensitivity of all methods (45.4%). Nested real-time PCR performed in 71 samples determined that Leishmania (Viannia) braziliensis was highly prevalent (69/71), and Leishmania (Viannia) lainsoni was present in only two isolates. Results indicated that RPA-LF has POC potential for CL endemic areas, yet further simplification and optimization coupled with field validation will be necessary to confirm its broad applicability.
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Affiliation(s)
- Bruno L Travi
- Division of Infectious Diseases, Department of Internal Medicine, University of Texas Medical Branch, Galveston, Texas, USA.,Center for Tropical Diseases, University of Texas Medical Branch, Galveston, Texas, USA
| | - Maxy B Delos Santos
- Department of Parasitology, U.S. Naval Medical Research Unit 6 (NAMRU-6), Lima, Peru
| | - Thomas R Shelite
- Division of Infectious Diseases, Department of Internal Medicine, University of Texas Medical Branch, Galveston, Texas, USA
| | - Rocio P Santos
- Department of Parasitology, U.S. Naval Medical Research Unit 6 (NAMRU-6), Lima, Peru
| | - Luis A Rosales
- Department of Parasitology, U.S. Naval Medical Research Unit 6 (NAMRU-6), Lima, Peru
| | - Alejandro Castellanos-Gonzalez
- Division of Infectious Diseases, Department of Internal Medicine, University of Texas Medical Branch, Galveston, Texas, USA.,Center for Tropical Diseases, University of Texas Medical Branch, Galveston, Texas, USA
| | - Omar Saldarriaga
- Division of Infectious Diseases, Department of Internal Medicine, University of Texas Medical Branch, Galveston, Texas, USA
| | - Peter C Melby
- Division of Infectious Diseases, Department of Internal Medicine, University of Texas Medical Branch, Galveston, Texas, USA.,Center for Tropical Diseases, University of Texas Medical Branch, Galveston, Texas, USA
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Kariyawasam R, Valencia BM, Lau R, Shao E, Thompson CA, Stevens M, Kincaid L, Del Castillo ALQ, Cruz-Arzapalo LO, Llanos-Cuentas A, Boggild AK. Evaluation of a point-of-care molecular detection device for Leishmania spp. and intercurrent fungal and mycobacterial organisms in Peruvian patients with cutaneous ulcers. Infection 2021; 49:1203-1211. [PMID: 34368941 DOI: 10.1007/s15010-021-01673-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2021] [Accepted: 07/26/2021] [Indexed: 11/26/2022]
Abstract
PURPOSE Overlapping clinical features of cutaneous leishmaniasis (CL) with ulcers caused by fungi and mycobacteria necessitate confirmatory diagnostic testing. We evaluated a handheld battery-operated device for detection of CL and common fungal and mycobacterial causes of ulcers. METHODS We validated Palm PCR™ for detection of common ulcerative skin pathogens using ATCC® reference and clinical strains of Leishmania, mycobacteria, and fungi in the lab and field. Amplified products were Sanger sequenced. Performance characteristics were calculated using conventional PCR as a reference standard. RESULTS Palm PCR™ detected 100% of ATCC® strains of Leishmania, fungi, and mycobacteria, with sensitivity and specificity of 90% and 91.7%, respectively. In the field, the sensitivity for detection of Leishmania in patients with suspected CL was 100%. In 61% of CL patients, co-colonization with genera such as Malassezia, Aspergillus, Candida, and Cladosporium was detected. In 50% of CL patients with an inflammatory (secondarily infected) phenotype, detected fungal species had known associations with human cutaneous disease. CONCLUSIONS Palm PCR™ performs comparably to conventional PCR for detection of Leishmania, fungi, and mycobacteria. This work has implications for the diagnostic approach to tropical ulcers, and has the potential to improve field detection of ulcerative pathogens in resource constrained areas.
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Affiliation(s)
| | - Braulio M Valencia
- Instituto de Medicina Tropical "Alexander Von Humboldt", Lima, Peru
- Kirby Institute, University of New South Wales, Sydney, Australia
| | - Rachel Lau
- Public Health Ontario Laboratory, Toronto, ON, Canada
| | - Eric Shao
- Department of Microbiology and Immunology, Western University, London, ON, Canada
| | - Courtney A Thompson
- Department of Medicine, University of Toronto, Toronto, ON, Canada
- Tropical Disease Unit, Toronto General Hospital, 200 Elizabeth Street, 13EN-218, Toronto, ON, M5G 2C4, Canada
- Markham-Stouffville Hospital, Markham, ON, Canada
| | - Michael Stevens
- Division of Clinical Dermatology and Cutaneous Science, Department of Medicine, Dalhousie University, Halifax, NS, Canada
| | - Leah Kincaid
- Alliance Dermatology Associates, Lawrenceville, NJ, USA
| | | | | | - Alejandro Llanos-Cuentas
- Instituto de Medicina Tropical "Alexander Von Humboldt", Lima, Peru
- Facultad de Ciencias, Universidad Peruana Cayetano Heredia, Lima, Peru
| | - Andrea K Boggild
- Institute of Medical Science, University of Toronto, Toronto, ON, Canada.
- Department of Medicine, University of Toronto, Toronto, ON, Canada.
- Tropical Disease Unit, Toronto General Hospital, 200 Elizabeth Street, 13EN-218, Toronto, ON, M5G 2C4, Canada.
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Zorrilla VO, Lozano ME, Espada LJ, Kosoy M, McKee C, Valdivia HO, Arevalo H, Troyes M, Stoops CA, Fisher ML, Vásquez GM. Comparison of sand fly trapping approaches for vector surveillance of Leishmania and Bartonella species in ecologically distinct, endemic regions of Peru. PLoS Negl Trop Dis 2021; 15:e0009517. [PMID: 34260585 PMCID: PMC8279425 DOI: 10.1371/journal.pntd.0009517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Accepted: 05/28/2021] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND In Peru, the information regarding sand fly vectors of leishmaniasis and bartonellosis in the Amazon region is limited. In this study, we carried out sand fly collections in Peruvian lowland and highland jungle areas using different trap type configurations and screened them for Leishmania and Bartonella DNA. METHODOLOGY/PRINCIPAL FINDINGS Phlebotomine sand flies were collected in Peruvian Amazon jungle and inter Andean regions using CDC light trap, UV and color LED traps, Mosquito Magnet trap, BG Sentinel trap, and a Shannon trap placed outside the houses. Leishmania spp. screening was performed by kDNA PCR and confirmed by a nested cytochrome B gene (cytB) PCR. Bartonella spp. screening was performed by ITS PCR and confirmed by citrate synthase gene (gltA). The PCR amplicons were sequenced to identify Leishmania and Bartonella species. UV and Blue LED traps collected the highest average number of sand flies per hour in low jungle; UV, Mosquito Magnet and Shannon traps in high jungle; and Mosquito Magnet in inter Andean region. Leishmania guyanensis in Lutzomyia carrerai carrerai and L. naiffi in Lu. hirsuta hirsuta were identified based on cytB sequencing. Bartonella spp. related to Bartonella bacilliformis in Lu. whitmani, Lu. nevesi, Lu. hirsuta hirsuta and Lu. sherlocki, and a Bartonella sp. related to Candidatus B. rondoniensis in Lu. nevesi and Lu. maranonensis were identified based on gltA gene sequencing. CONCLUSIONS/SIGNIFICANCE UV, Blue LED, Mosquito Magnet and Shannon traps were more efficient than the BG-Sentinel, Green, and Red LED traps. This is the first report of L. naiffi and of two genotypes of Bartonella spp. related to B. bacilliformis and Candidatus B. rondoniensis infecting sand fly species from the Amazon region in Peru.
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Affiliation(s)
- Victor O. Zorrilla
- Department of Entomology, U.S. Naval Medical Research Unit No.6, Bellavista, Peru
- * E-mail:
| | - Marisa E. Lozano
- Department of Entomology, U.S. Naval Medical Research Unit No.6, Bellavista, Peru
- Vysnova Partners, Lima, Peru
| | - Liz J. Espada
- Department of Entomology, U.S. Naval Medical Research Unit No.6, Bellavista, Peru
- Vysnova Partners, Lima, Peru
| | - Michael Kosoy
- KB One Health LLC, Fort Collins, Colorado, United States of America
| | - Clifton McKee
- Graduate Degree Program in Ecology, Colorado State University, Fort Collins, Colorado, United States of America
- Department of Biology, Colorado State University, Fort Collins, Colorado, United States of America
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, United States of America
| | - Hugo O. Valdivia
- Department of Parasitology, U.S. Naval Medical Research Unit No.6, Bellavista, Peru
| | - Heriberto Arevalo
- Laboratorio Referencial de Salud, Tarapoto, Direccion Regional de Salud San Martin, Peru
| | | | - Craig A. Stoops
- Department of Entomology, U.S. Naval Medical Research Unit No.6, Bellavista, Peru
| | - Michael L. Fisher
- Department of Entomology, U.S. Naval Medical Research Unit No.6, Bellavista, Peru
| | - Gissella M. Vásquez
- Department of Entomology, U.S. Naval Medical Research Unit No.6, Bellavista, Peru
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Kato H, Seki C, Kubo M, Gonzales-Cornejo L, Caceres AG. Natural infections of Pintomyia verrucarum and Pintomyia maranonensis by Leishmania (Viannia) peruviana in the Eastern Andes of northern Peru. PLoS Negl Trop Dis 2021; 15:e0009352. [PMID: 33857155 PMCID: PMC8078796 DOI: 10.1371/journal.pntd.0009352] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Revised: 04/27/2021] [Accepted: 04/01/2021] [Indexed: 12/03/2022] Open
Abstract
The natural infection of sand flies by Leishmania was investigated in Andean areas located between the Central and Eastern Cordilleras of northern Peru where cutaneous leishmaniasis caused by Leishmania (Viannia) peruviana is endemic. Sand flies were captured at five locations along the Utcubamba River in the Department of Amazonas, and morphologically identified under a microscope. Among 422 female sand flies dissected, the most dominant species was Pintomyia verrucarum (320 flies), followed by Pi. maranonensis (83 flies), Pi. robusta (13 flies), and Lutzomyia castanea (6 flies). Genetic analysis of sand flies from these areas together with those from other areas revealed that individuals of Pi. verrucarum were closely related regardless of morphological variation of their spermathecae. On the other hand, individuals of Pi. maranonensis collected in the study area were distant from those of other areas with genetic distances over the intraspecific level but mostly below the interspecific level, suggesting the unique characteristics of sand flies in this area. The natural infection of sand flies by flagellate parasites was detected mainly in the hindgut of each one of Pi. verrucarum and Pi. maranonensis. Both parasite species were identified as L. (V.) peruviana based on cytochrome b and mannose phosphate isomerase gene analyses. In addition, parasite species obtained from the lesion of a patient with cutaneous leishmaniasis in the study area in this period was identified as L. (V.) peruviana. These results strongly suggest that Pi. verrucarum and Pi. maranonensis are responsible for the transmission of L. (V.) peruviana in these areas. This is the first report of the natural infection of Pi. maranonensis by L. (V.) peruviana. Phlebotomine sand flies are tiny insects of the family Psychodidae in the order Diptera, and female sand flies suck blood for egg production. Approximately 1,020 sand fly species have been recorded in the world, of which about 550 species are in the New World. Only a part of them are associated with medically important infectious diseases such as leishmaniasis, and importantly, each vector species transmits specific species of Leishmania. Since the infecting Leishmania species is the major determinant of the clinical outcome and its endemicity is largely dependent on the prevalence of the vector species, the identification of circulating sand flies and vector species, which determine transmissible parasite species, is important to predict the risk and expansion of the disease in endemic and surrounding areas. However, the vector species involved in disease transmission remains unidentified in most endemic areas because the infection rate in sand fly populations is very low. In the present study, sand flies were investigated in the Department of Amazonas in the Eastern Andes of northern Peru, in which cutaneous leishmaniasis caused by Leishmania (Viannia) peruviana is endemic, to clarify the transmission mechanism of leishmaniasis in these areas. In addition, genetic analyses of circulating sand flies were performed to elucidate the characteristics of sand flies in these areas.
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Affiliation(s)
- Hirotomo Kato
- Division of Medical Zoology, Department of Infection and Immunity, Jichi Medical University, Tochigi, Japan
- * E-mail:
| | - Chisato Seki
- Division of Medical Zoology, Department of Infection and Immunity, Jichi Medical University, Tochigi, Japan
| | - Makoto Kubo
- Division of Immunology, Kitasato University School of Allied Health Sciences, Kanagawa, Japan
| | - Lizandro Gonzales-Cornejo
- Laboratorio Referencial de Salud Pública and Laboratorio de Entomología, Dirección Regional de Salud Amazonas, Peru
| | - Abraham G. Caceres
- Sección de Entomología, Instituto de Medicina Tropical “Daniel A. Carrión” y Departamento Académico de Microbiología Médica, Facultad de Medicina Humana, Universidad Nacional Mayor de San Marcos, Lima, Peru
- Laboratorio de Entomología, Instituto Nacional de Salud, Lima, Peru
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10
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Kato H, Cáceres AG, Gomez EA, Tabbabi A, Mizushima D, Yamamoto DS, Hashiguchi Y. Prevalence of Genetically Complex Leishmania Strains With Hybrid and Mito-Nuclear Discordance. Front Cell Infect Microbiol 2021; 11:625001. [PMID: 33732663 PMCID: PMC7959773 DOI: 10.3389/fcimb.2021.625001] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Accepted: 01/14/2021] [Indexed: 12/02/2022] Open
Abstract
Approximately 20 Leishmania species are known to cause cutaneous, mucocutaneous, and visceral disorders in humans. Identification of the causative species in infected individuals is important for appropriate treatment and a favorable prognosis because infecting species are known to be the major determinant of clinical manifestations and may affect treatments for leishmaniasis. Although Leishmania species have been conventionally identified by multilocus enzyme electrophoresis, genetic analysis targeting kinetoplast and nuclear DNA (kDNA and nDNA, respectively) is now widely used for this purpose. Recently, we conducted countrywide epidemiological studies of leishmaniasis in Ecuador and Peru to reveal prevalent species using PCR-RFLP targeting nDNA, and identified unknown hybrid parasites in these countries together with species reported previously. Furthermore, comparative analyses of kDNA and nDNA revealed the distribution of parasites with mismatches between these genes, representing the first report of mito-nuclear discordance in protozoa. The prevalence of an unexpectedly high rate (~10%) of genetically complex strains including hybrid strains, in conjunction with the observation of mito-nuclear discordance, suggests that genetic exchange may occur more frequently than previously thought in natural Leishmania populations. Hybrid Leishmania strains resulting from genetic exchanges are suggested to cause more severe clinical symptoms when compared with parental strains, and to have increased transmissibility by vectors of the parental parasite species. Therefore, it is important to clarify how such genetic exchange influences disease progression and transmissibility by sand flies in nature. In addition, our aim was to identify where and how the genetic exchange resulting in the formation of hybrid and mito-nuclear discordance occurs.
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Affiliation(s)
- Hirotomo Kato
- Division of Medical Zoology, Department of Infection and Immunity, Jichi Medical University, Tochigi, Japan
| | - Abraham G Cáceres
- Sección de Entomología, Instituto de Medicina Tropical "Daniel A. Carrión" y Departamento Académico de Microbiología Médica, Facultad de Medicina Humana, Universidad Nacional Mayor de San Marcos, Lima, Peru.,Laboratorio de Entomología, Instituto Nacional de Salud, Lima, Peru
| | - Eduardo A Gomez
- Departamento de Parasitología y Medicina Tropical, Facultad de Ciencias Médicas, Universidad Católica de Santiago de Guayaquil, Guayaquil, Ecuador
| | - Ahmed Tabbabi
- Division of Medical Zoology, Department of Infection and Immunity, Jichi Medical University, Tochigi, Japan
| | - Daiki Mizushima
- Division of Medical Zoology, Department of Infection and Immunity, Jichi Medical University, Tochigi, Japan
| | - Daisuke S Yamamoto
- Division of Medical Zoology, Department of Infection and Immunity, Jichi Medical University, Tochigi, Japan
| | - Yoshihisa Hashiguchi
- Departamento de Parasitología y Medicina Tropical, Facultad de Ciencias Médicas, Universidad Católica de Santiago de Guayaquil, Guayaquil, Ecuador
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11
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Valdivia HO, Zorrilla VO, Espada LJ, Perez JG, Razuri HR, Vera H, Fernandez R, Tong C, Ghersi BM, Vasquez GM, Burrus RG, Lescano AG, Montgomery JM. Diversity, distribution and natural Leishmania infection of sand flies from communities along the Interoceanic Highway in the Southeastern Peruvian Amazon. PLoS Negl Trop Dis 2021; 15:e0009000. [PMID: 33566811 PMCID: PMC7875382 DOI: 10.1371/journal.pntd.0009000] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Accepted: 11/20/2020] [Indexed: 01/24/2023] Open
Abstract
The Peruvian-Brazilian border is a highly endemic tegumentary leishmaniasis region in South America. The interoceanic highway is a commercial route that connects Peru and Brazil through Madre de Dios and has raised concerns about its impact on previously undisturbed areas. In order to assess leishmaniasis transmission risk along this highway, we conducted a surveillance study of the sand fly populations in this area. Sand flies were collected between 2009 and 2010 along transects at 200 m, 600 m and 1000 m from six study sites located along the highway (Iberia, La Novia, Alto Libertad, El Carmen, Florida Baja, Mazuko and Mavila) and an undisturbed area (Malinowski). Collected specimens were identified based on morphology and non-engorged females of each species were pooled and screened by kinetoplast PCR to detect natural Leishmania infections. A total of 9,023 specimens were collected belonging to 54 different Lutzomyia species including the first report of Lu. gantieri in Peru. Four species accounted for 50% of all specimens (Lutzomyia carrerai carrerai, Lu. davisi, Lu. shawi and Lu. richardwardi). El Carmen, Alto Libertad, Florida Baja and Malinowski presented higher Shannon diversity indexes (H = 2.36, 2.30, 2.17 and 2.13, respectively) than the most human disturbed sites of Mazuko and La Novia (H = 1.53 and 1.06, respectively). PCR detected 10 positive pools belonging to Lu. carrerai carrerai, Lu. yuilli yuilli, Lu. hirsuta hirsuta, Lu. (Trichophoromyia) spp., and Lu. (Lutzomyia) spp. Positive pools from 1,000 m transects had higher infectivity rates than those from 600 m and 200 m transects (9/169 = 5.3% vs 0/79 = 0% and 1/127 = 0.8%, p = 0.018). El Carmen, accounted for eight out of ten positives whereas one positive was collected in Florida Baja and Mazuko each. Our study has shown differences in sand fly diversity, abundance and species composition across and within sites. Multiple clustered Lutzomyia pools with natural Leishmania infection suggest a complex, diverse and spotty role in leishmaniasis transmission in Madre de Dios, with increased risk farther from the highway.
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Affiliation(s)
- Hugo O. Valdivia
- Department of Parasitology, U.S. Naval Medical Research Unit 6, Lima, Peru
- * E-mail:
| | - Victor O. Zorrilla
- Department of Entomology, U.S. Naval Medical Research Unit 6, Lima, Peru
| | - Liz. J. Espada
- Department of Entomology, U.S. Naval Medical Research Unit 6, Lima, Peru
| | - Jocelyn G. Perez
- Department of Parasitology, U.S. Naval Medical Research Unit 6, Lima, Peru
| | - Hugo R. Razuri
- Department of Emerging Infections, U.S. Naval Medical Research Unit 6, Lima, Peru
| | - Hubert Vera
- Dirección Regional de Salud de Madre de Dios, Puerto Maldonado, Peru
| | - Roberto Fernandez
- Department of Entomology, U.S. Naval Medical Research Unit 6, Lima, Peru
| | - Carlos Tong
- Department of Entomology, U.S. Naval Medical Research Unit 6, Lima, Peru
| | - Bruno M. Ghersi
- Department of Emerging Infections, U.S. Naval Medical Research Unit 6, Lima, Peru
| | | | - Roxanne G. Burrus
- Department of Entomology, U.S. Naval Medical Research Unit 6, Lima, Peru
| | - Andres G. Lescano
- Emerge, Emerging Diseases and Climate Change Research Unit, and Clima, Latin American Center of Excellence for Climate Change and Health, Universidad Peruana Cayetano Heredia, Lima, Peru
| | - Joel M. Montgomery
- Department of Emerging Infections, U.S. Naval Medical Research Unit 6, Lima, Peru
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12
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Kalendar R, Boronnikova S, Seppänen M. Isolation and Purification of DNA from Complicated Biological Samples. Methods Mol Biol 2021; 2222:57-67. [PMID: 33301087 DOI: 10.1007/978-1-0716-0997-2_3] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The isolation of nucleic acids from a biological sample is an important step for many molecular biology applications and medical diagnostic assays. This chapter describes an efficient protocol using established acidic CTAB (with a pH value of 5.0 to 6.8) based extraction method for isolation and/or purification of high molecular weight genomic DNA from a range of fresh and difficult sources from plant, animal, fungi, and soil material. This protocol is suitable for many sequencing and genotyping applications, including large-scale sample screening.
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Affiliation(s)
- Ruslan Kalendar
- Department of Agricultural Sciences, Viikki Plant Science Centre and Helsinki Sustainability Centre, University of Helsinki, Helsinki, Finland. .,National Laboratory Astana, Nazarbayev University, Nur-Sultan, Kazakhstan.
| | - Svetlana Boronnikova
- Department of Botany and Genetics of Plants, Faculty of Biology, Perm State University, Perm, Russia
| | - Mervi Seppänen
- Department of Agricultural Sciences, Viikki Plant Science Centre and Helsinki Sustainability Centre, University of Helsinki, Helsinki, Finland
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13
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Nuclear and kinetoplast DNA analyses reveal genetically complex Leishmania strains with hybrid and mito-nuclear discordance in Peru. PLoS Negl Trop Dis 2020; 14:e0008797. [PMID: 33075058 PMCID: PMC7595639 DOI: 10.1371/journal.pntd.0008797] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Revised: 10/29/2020] [Accepted: 09/16/2020] [Indexed: 02/05/2023] Open
Abstract
Polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) analysis of the mannose phosphate isomerase (mpi) gene was applied to 134 skin samples collected from patients with cutaneous leishmaniasis (CL) in Peru for identification of the infecting parasite at the species level, and the results were compared with those of cytochrome b (cyt b) gene sequencing obtained in previous studies. Although most results (121/134) including 4 hybrids of Leishmania (Viannia) braziliensis and L. (V.) peruviana corresponded to those obtained in the previous study, PCR-RFLP analyses revealed the distribution of putative hybrid strains between L. (V.) peruviana and L. (V.) lainsoni in two samples, which has never been reported. Moreover, parasite strains showing discordance between kinetoplast and nuclear genes (kDNA and nDNA), so-called mito-nuclear discordance, were identified in 11 samples. Of these, six strains had the kDNAs of L. (V.) braziliensis or L. (V.) peruviana and nDNAs of L. (V.) guyanensis, and three strains had the kDNAs of L. (V.) shawi and nDNAs of L. (V.) braziliensis. The rest were identified as mito-nuclear discordance strains having kDNAs of L. (V.) braziliensis or L. (V.) peruviana and nDNAs of L. (V.) lainsoni, and kDNAs of L. (V.) lainsoni and nDNAs of L. (V.) braziliensis. The results demonstrate that Leishmania strains in Peru are genetically more complex than previously considered. Protozoan parasites of the genus Leishmania are able to undergo genetic exchange during their growth. The previous description of hybrids in Peru and the recent discovery of unexpected genetically complex strains having characteristics of both hybrid and mito-nuclear discordance in its neighbouring country (Ecuador) with a similar eco-epidemiological situation led us to consider that the genetic structure of Leishmania strains in Peru is more complicated than previously thought. In an effort to revise the data on Leishmania strain dispersion in Peru and to search for evidence of genetic recombination, the present study was conducted. A polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) analysis targeting the mannose phosphate isomerase (mpi) gene sequence was performed to identify the infecting parasite at the species level in 134 skin samples collected from patients with cutaneous leishmaniasis (CL) in Peru, and the results were compared with those of cytochrome b (cyt b) gene sequencing obtained in previous studies. Most results (121/134) including 4 hybrids between L. (V.) braziliensis and L. (V.) peruviana showed agreement between PCR-RFLP of the mpi gene and cyt b gene sequence analysis; however, 13 of 134 samples revealed the distribution of strains with hybrids and mito-nuclear discordance. The results demonstrate that genetically complex Leishmania strains are present in Peru. These findings indicate that Leishmania strain dispersion in Peru is genetically more complex than previously considered. Further prospective studies including larger samples and the isolation of parasite strains are required to update the available data.
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14
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Hashiguchi Y, Hashiguchi K, Zambrano FC, Parraga FD, Martillo VP, Torres EX, Velez LN, Villegas NV, Gomez EA, Kato H. Natural Leishmania (Leishmania) mexicana infection and biting activity of anthropophilic sand fly Lutzomyia ayacuchensis in the Ecuadorian Andes. Acta Trop 2020; 203:105321. [PMID: 31877283 DOI: 10.1016/j.actatropica.2019.105321] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Revised: 12/21/2019] [Accepted: 12/21/2019] [Indexed: 11/18/2022]
Abstract
To elucidate the transmission mode of Andean cutaneous leishmaniasis (Andean-CL), natural Leishmania infection and biting activity of sand flies were tested in a selected sylvatic focus of the endemic area of the Ecuadorian Andes. Monthly sand fly collections and dissections were conducted during 12 months from July 2018 to June 2019. The Leishmania positive specimens/slides with innumerable amounts of actively mobile flagellates made us easy to detect positive sand flies. The promastigotes observed located in the anterior and posterior midgut, without the hindgut localization. The parasite isolated was identified as L. (L.) mexicana by cytochrome b gene analysis. No other Leishmania or flagellate species parasitic in sand flies was observed in the area. Only Lu. ayacuchensis was caught throughout. Monthly microscopic examination of Lu. ayacuchensis revealed 0.75-8.33% of natural L. (L.) mexicana infection rates. Higher Leishmania infection months were present at the end of the wet season of the Andes, while higher sand fly numbers occurred during the dry season. Diurnal biting (blood meal seeking) activity of sand flies started around 17:30 before sunset, increased between 18:00 and 19:30, and thereafter decreased drastically probably because of low temperature (15-18 °C) in the area. The results provide information important for the planning of vector control strategy and management of the disease in the Andean-CL endemic area of Ecuador.
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Affiliation(s)
- Yoshihisa Hashiguchi
- Departamento de Parasitologia y Medicina Tropical, Carrera de Medicina, Facultad de Ciencias Medicas, Universidad Catolica de Santiago de Guayaquil, Guayaquil, Ecuador; Leishmaniasis Project (SINDE-SIU #415-214), Facultad de Ciencias Medicas, Universidad Catolica de Santiago de Guayaquil, Guayaquil, Ecuador; Department of Parasitology, Kochi Medical School, Kochi University, Kochi, Japan.
| | - Kazue Hashiguchi
- Leishmaniasis Project (SINDE-SIU #415-214), Facultad de Ciencias Medicas, Universidad Catolica de Santiago de Guayaquil, Guayaquil, Ecuador
| | - Flavio C Zambrano
- Leishmaniasis Project (SINDE-SIU #415-214), Facultad de Ciencias Medicas, Universidad Catolica de Santiago de Guayaquil, Guayaquil, Ecuador; Ministerio de Salud Publica, Ecuador
| | | | - Viriginia P Martillo
- Leishmaniasis Project (SINDE-SIU #415-214), Facultad de Ciencias Medicas, Universidad Catolica de Santiago de Guayaquil, Guayaquil, Ecuador; Ministerio de Salud Publica, Ecuador
| | - Edison X Torres
- Leishmaniasis Project (SINDE-SIU #415-214), Facultad de Ciencias Medicas, Universidad Catolica de Santiago de Guayaquil, Guayaquil, Ecuador; Ministerio de Salud Publica, Ecuador
| | - Lenin N Velez
- Departamento de Parasitologia y Medicina Tropical, Carrera de Medicina, Facultad de Ciencias Medicas, Universidad Catolica de Santiago de Guayaquil, Guayaquil, Ecuador; Leishmaniasis Project (SINDE-SIU #415-214), Facultad de Ciencias Medicas, Universidad Catolica de Santiago de Guayaquil, Guayaquil, Ecuador; Ministerio de Salud Publica, Ecuador
| | - Nancy V Villegas
- Departamento de Parasitologia y Medicina Tropical, Carrera de Medicina, Facultad de Ciencias Medicas, Universidad Catolica de Santiago de Guayaquil, Guayaquil, Ecuador; Leishmaniasis Project (SINDE-SIU #415-214), Facultad de Ciencias Medicas, Universidad Catolica de Santiago de Guayaquil, Guayaquil, Ecuador
| | - Eduardo A Gomez
- Departamento de Parasitologia y Medicina Tropical, Carrera de Medicina, Facultad de Ciencias Medicas, Universidad Catolica de Santiago de Guayaquil, Guayaquil, Ecuador; Leishmaniasis Project (SINDE-SIU #415-214), Facultad de Ciencias Medicas, Universidad Catolica de Santiago de Guayaquil, Guayaquil, Ecuador; Ministerio de Salud Publica, Ecuador
| | - Hirotomo Kato
- Division of Medical Zoology, Department of Infection and Immunity, School of Medicine, Jichi Medical University, Tochigi, Japan
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15
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El Daous H, Mitoma S, Elhanafy E, Thi Nguyen H, Thi Mai N, Hara A, Duangtathip K, Takezaki Y, Kaneko C, Norimine J, Sekiguchi S. Establishment of a novel diagnostic test for Bovine leukaemia virus infection using direct filter PCR. Transbound Emerg Dis 2020; 67:1671-1676. [PMID: 32034996 DOI: 10.1111/tbed.13506] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Revised: 01/09/2020] [Accepted: 02/03/2020] [Indexed: 12/22/2022]
Abstract
Enzootic bovine leucosis (EBL) is a neoplastic disease of cattle caused by Bovine leukaemia virus (BLV). EBL causes great economic losses, so a fast and reliable diagnostic method is critical for understanding the status of BLV. This will allow us to control BLV infections efficiently and mitigate economic losses. In this study, we established a direct diagnostic test for BLV using dried blood-spotted filter papers without sample pre-treatment. The study was based on 159 clinical blood specimens collected in EDTA from one farm in Kyushu, Japan. The blood-spotted filter papers were used as the template for direct filter PCR. When an ELISA was used as the diagnostic gold standard, the sensitivity and specificity of the direct filter PCR were 90.1% and 97.5%, respectively. The kappa value for the direct filter PCR and real-time PCR methods was 0.97. The dried blood samples spotted onto filter papers were stable for at least 10 days at room temperature, even when the samples were from cattle with a low BLV proviral load. Direct filter PCR is a rapid, easy, reliable and cost-effective diagnostic test that directly detects the BLV proviral genome in clinical blood specimens without DNA extraction. Moreover, it simplifies the collection, transportation and storage procedures for clinical blood specimens.
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Affiliation(s)
- Hala El Daous
- Graduate School of Medicine and Veterinary Medicine, University of Miyazaki, Miyazaki, Japan.,Faculty of Veterinary Medicine, Benha University, Toukh, Egypt
| | - Shuya Mitoma
- Graduate School of Medicine and Veterinary Medicine, University of Miyazaki, Miyazaki, Japan
| | - Eslam Elhanafy
- Faculty of Veterinary Medicine, Benha University, Toukh, Egypt.,Graduate School of Agriculture, University of Miyazaki, Miyazaki, Japan
| | | | - Ngan Thi Mai
- Graduate School of Medicine and Veterinary Medicine, University of Miyazaki, Miyazaki, Japan.,Faculty of Veterinary Medicine, Vietnam National University of Agriculture, Hanoi, Vietnam
| | - Akihiro Hara
- Department of Veterinary Science, Faculty of Agriculture, University of Miyazaki, Miyazaki, Japan
| | - Karn Duangtathip
- Kasetsart University Veterinary Teaching Hospital Hua-Hin, Prachuap Khiri Khan, Thailand
| | - Yuka Takezaki
- Graduate School of Medicine and Veterinary Medicine, University of Miyazaki, Miyazaki, Japan
| | - Chiho Kaneko
- Center for Animal Disease Control, University of Miyazaki, Miyazaki, Japan
| | - Junzo Norimine
- Department of Veterinary Science, Faculty of Agriculture, University of Miyazaki, Miyazaki, Japan.,Center for Animal Disease Control, University of Miyazaki, Miyazaki, Japan
| | - Satoshi Sekiguchi
- Department of Veterinary Science, Faculty of Agriculture, University of Miyazaki, Miyazaki, Japan.,Center for Animal Disease Control, University of Miyazaki, Miyazaki, Japan
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16
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Copa GN, Almazán MC, Aramayo LV, Krolewiecki AJ, Cajal SP, Juarez M, Lauthier JJ, Korenaga M, Barroso P, Nasser JR, Marco JD, Gil JF. Tegumentary leishmaniasis and sand flies in a border area between Argentina and Bolivia. Trans R Soc Trop Med Hyg 2020; 113:91-100. [PMID: 30418628 DOI: 10.1093/trstmh/try113] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2018] [Accepted: 09/21/2018] [Indexed: 11/12/2022] Open
Abstract
Background Some sand flies are of medical importance because they are vectors of Leishmania parasites that are responsible for leishmaniasis. The aim of this study was to make a retrospective epidemiological analysis of tegumentary leishmaniasis (TL), to identify Leishmania spp. from patient isolates and to describe the diversity of sand flies from a border area between Bolivia and Argentina. Methods TL cases included in the study were diagnosed in an endemic area of the north of Argentina from 1985 to 2017. The parasites isolated were characterized by the cytochrome B method. Sand flies were captured with Centers for Disease Control traps in Aguas Blancas and Media Luna-Algarrobito localities. Results A total of 118 cases of TL were analysed. Eight isolates were characterized as Leishmania (Viannia) braziliensis. A total of 1291 sand flies were captured, including Nyssomyia neivai, Cortelezzii complex, Evandromyia sallesi, Migonemyia migonei and Micropygomyia quinquefer. Within the area, sand flies were found in the backyards of houses. Conclusions In this region there exists the possibility of peridomestic transmission of TL in the neighbourhoods peripheral to the urban area and in rural environments as well as the risk of transmission to travellers that pass through the customs offices.
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Affiliation(s)
- Griselda N Copa
- Instituto de Investigaciones de Enfermedades Tropicales (IIET), Sede Regional Orán, Facultad de Ciencias de la Salud, Universidad Nacional de Salta. Alvarado 751 - San Ramón de la Nueva Orán-C.P.4530.,Cátedra de Química Biológica y Biología Molecular, Facultad de Ciencias Naturales, Universidad Nacional de Salta. Universidad Nacional de Salta. Av. Bolivia 5150 - CP
| | - María C Almazán
- Instituto de Investigaciones de Enfermedades Tropicales (IIET), Sede Regional Orán, Facultad de Ciencias de la Salud, Universidad Nacional de Salta. Alvarado 751 - San Ramón de la Nueva Orán-C.P.4530.,Cátedra de Química Biológica y Biología Molecular, Facultad de Ciencias Naturales, Universidad Nacional de Salta. Universidad Nacional de Salta. Av. Bolivia 5150 - CP
| | - Lorena V Aramayo
- Cátedra de Química Biológica y Biología Molecular, Facultad de Ciencias Naturales, Universidad Nacional de Salta. Universidad Nacional de Salta. Av. Bolivia 5150 - CP
| | - Alejandro J Krolewiecki
- Instituto de Investigaciones de Enfermedades Tropicales (IIET), Sede Regional Orán, Facultad de Ciencias de la Salud, Universidad Nacional de Salta. Alvarado 751 - San Ramón de la Nueva Orán-C.P.4530
| | - Silvana P Cajal
- Instituto de Investigaciones de Enfermedades Tropicales (IIET), Sede Regional Orán, Facultad de Ciencias de la Salud, Universidad Nacional de Salta. Alvarado 751 - San Ramón de la Nueva Orán-C.P.4530
| | - Marisa Juarez
- Instituto de Investigaciones de Enfermedades Tropicales (IIET), Sede Regional Orán, Facultad de Ciencias de la Salud, Universidad Nacional de Salta. Alvarado 751 - San Ramón de la Nueva Orán-C.P.4530
| | - Juan J Lauthier
- Parasitology Department, Kochi Medical School, Kochi University, Oko, Nankoku, Kochi, Japan
| | - Masataka Korenaga
- Parasitology Department, Kochi Medical School, Kochi University, Oko, Nankoku, Kochi, Japan
| | - Paola Barroso
- Instituto de Patología Experimental (IPE-CONICET), Facultad de Ciencias de la Salud, Universidad Nacional de Salta. Av. Bolivia 5150 - CP
| | - Julio R Nasser
- Instituto de Investigaciones de Enfermedades Tropicales (IIET), Sede Regional Orán, Facultad de Ciencias de la Salud, Universidad Nacional de Salta. Alvarado 751 - San Ramón de la Nueva Orán-C.P.4530.,Cátedra de Química Biológica y Biología Molecular, Facultad de Ciencias Naturales, Universidad Nacional de Salta. Universidad Nacional de Salta. Av. Bolivia 5150 - CP
| | - Jorge D Marco
- Instituto de Patología Experimental (IPE-CONICET), Facultad de Ciencias de la Salud, Universidad Nacional de Salta. Av. Bolivia 5150 - CP
| | - José F Gil
- Instituto de Investigaciones de Enfermedades Tropicales (IIET), Sede Regional Orán, Facultad de Ciencias de la Salud, Universidad Nacional de Salta. Alvarado 751 - San Ramón de la Nueva Orán-C.P.4530.,Instituto de Investigación en Energía No Convencional (INENCO-CONICET), Departamento de Física, Universidad Nacional de Salta. Av. Bolivia 5150 - CP
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17
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Bassi D, Orrù L, Cabanillas Vasquez J, Cocconcelli PS, Fontana C. Peruvian chicha: A Focus on the Microbial Populations of This Ancient Maize-Based Fermented Beverage. Microorganisms 2020; 8:E93. [PMID: 32284502 PMCID: PMC7022331 DOI: 10.3390/microorganisms8010093] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Revised: 12/30/2019] [Accepted: 01/01/2020] [Indexed: 12/25/2022] Open
Abstract
Peruvian chicha de jora is one of the most ancient traditional beverages produced through maize fermentation, still popular to modern consumers, but less studied in terms of microbial compositions. In this work, the bacterial biodiversity of 27 chicha samples collected from 14 different "chicherias" in seven provinces of Peru was investigated by Next-Generation Sequencing (NGS). A large dissimilarity in chicha microbial composition was a direct consequence of ingredients, manufacturing processes and geographical influences. The core microbiome was represented by six main genera, belonging to Lactic Acid Bacteria (LAB) and Acetic Acid Bacteria (AAB). Lactobacillus prevailed (more than 50% of sequences belong to this genus) followed by Weissella, Leuconostoc, Lactococcus and Streptococcus. Acetobacter was the only AAB genus identified in chicha. The occurrence of sequences associated to spoiling and pathogenic bacteria, such as Bacillus, Clostridium, and Enterobacteriaceae, was observed only in a few samples, validating the safety of this beverage. Predictive functional annotation of metagenomic sequences revealed that carbohydrate and amino acid metabolisms and coenzyme transport are the main KEGG categories associated to chicha fermentation pathways. The old recipes and traditional processing of each chicherias helps maintain native microorganisms as a resource of biodiversity with potential technological and health-beneficial properties.
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Affiliation(s)
- Daniela Bassi
- DISTAS, Università Cattolica del Sacro Cuore, via Emilia Parmense 84, 29122 Piacenza, Italy. Biotechnology Research Centre (CRB), via Milano 24, 26100 Cremona, Italy; (D.B.); (P.S.C.)
| | - Luigi Orrù
- Consiglio per la Ricerca e la Sperimentazione in Agricoltura e l’Analisi dell’Economia Agraria, Centro di Ricerca per la Genomica Vegetale (CREA-GPG), 29017 Fiorenzuola d’Arda, Italy;
| | - Jeison Cabanillas Vasquez
- Universidad Católica Sedes Sapientia, Esquina Constelaciones y Sol de Oro S/N, Urbanización Sol de Oro, Cercado de Lima 15302, Peru;
| | - Pier Sandro Cocconcelli
- DISTAS, Università Cattolica del Sacro Cuore, via Emilia Parmense 84, 29122 Piacenza, Italy. Biotechnology Research Centre (CRB), via Milano 24, 26100 Cremona, Italy; (D.B.); (P.S.C.)
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Nzelu CO, Kato H, Peters NC. Loop-mediated isothermal amplification (LAMP): An advanced molecular point-of-care technique for the detection of Leishmania infection. PLoS Negl Trop Dis 2019; 13:e0007698. [PMID: 31697673 PMCID: PMC6837287 DOI: 10.1371/journal.pntd.0007698] [Citation(s) in RCA: 78] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
Leishmaniasis, caused by protozoan parasites of the Leishmania genus, represents an important health problem in many regions of the world. Lack of effective point-of-care (POC) diagnostic tests applicable in resources-limited endemic areas is a critical barrier to effective treatment and control of leishmaniasis. The development of the loop-mediated isothermal amplification (LAMP) assay has provided a new tool towards the development of a POC diagnostic test based on the amplification of pathogen DNA. LAMP does not require a thermocycler, is relatively inexpensive, and is simple to perform with high amplification sensitivity and specificity. In this review, we discuss the current technical developments, applications, diagnostic performance, challenges, and future of LAMP for molecular diagnosis and surveillance of Leishmania parasites. Studies employing the LAMP assay to diagnose human leishmaniasis have reported sensitivities of 80% to 100% and specificities of 94% to 100%. These observations suggest that LAMP offers a good molecular POC technique for the diagnosis of leishmaniasis and is also readily applicable to screening at-risk populations and vector sand flies for Leishmania infection in endemic areas.
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Affiliation(s)
- Chukwunonso O. Nzelu
- Snyder Institute for Chronic Diseases, Departments of Microbiology, Immunology, and Infectious Diseases, Cumming School of Medicine and Comparative Biology and Experimental Medicine, Faculty of Veterinary Medicine, University of Calgary, Calgary, Canada
- * E-mail: (CON); (NCP)
| | - Hirotomo Kato
- Division of Medical Zoology, Department of Infection and Immunity, Jichi Medical University, Tochigi, Japan
| | - Nathan C. Peters
- Snyder Institute for Chronic Diseases, Departments of Microbiology, Immunology, and Infectious Diseases, Cumming School of Medicine and Comparative Biology and Experimental Medicine, Faculty of Veterinary Medicine, University of Calgary, Calgary, Canada
- * E-mail: (CON); (NCP)
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Kato H, Cáceres AG, Seki C, Silupu García CR, Holguín Mauricci C, Castro Martínez SC, Moreno Paico D, Castro Muniz JL, Troyes Rivera LD, Villegas Briones ZI, Guerrero Quincho S, Sulca Jayo GL, Tineo Villafuerte E, Manrique de Lara Estrada C, Arias FR, Passara FS, Ruelas Llerena N, Kubo M, Tabbabi A, Yamamoto DS, Hashiguchi Y. Further insight into the geographic distribution of Leishmania species in Peru by cytochrome b and mannose phosphate isomerase gene analyses. PLoS Negl Trop Dis 2019; 13:e0007496. [PMID: 31220120 PMCID: PMC6605678 DOI: 10.1371/journal.pntd.0007496] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2019] [Revised: 07/02/2019] [Accepted: 05/27/2019] [Indexed: 11/18/2022] Open
Abstract
To obtain further insight into geographic distribution of Leishmania species in Peru, a countrywide survey, including central to southern rainforest areas where information on causative parasite species is limited, was performed based on cytochrome b (cyt b) and mannose phosphate isomerase (mpi) gene analyses. A total of 262 clinical samples were collected from patients suspected of cutaneous leishmaniasis (CL) in 28 provinces of 13 departments, of which 99 samples were impregnated on FTA (Flinders Technology Associates) cards and 163 samples were Giemsa-stained smears. Leishmania species were successfully identified in 83 (83.8%) of FTA-spotted samples and 59 (36.2%) of Giemsa-stained smear samples. Among the 142 samples identified, the most dominant species was Leishmania (Viannia) braziliensis (47.2%), followed by L. (V.) peruviana (26.1%), and others were L. (V.) guyanensis, L. (V.) lainsoni, L. (V.) shawi, a hybrid of L. (V.) braziliensis and L. (V.) peruviana, and Leishmania (Leishmania) amazonensis. Besides the present epidemiological observations, the current study provided the following findings: 1) A hybrid of L. (V.) braziliensis and L. (V.) peruviana is present outside the Department of Huanuco, the only place reported, 2) Many cases of CL due to L. (V.) lainsoni, an uncommon causative species in Peru, were observed, and 3) L. (V.) shawi is widely circulating in southern Amazonian areas in Peru.
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Affiliation(s)
- Hirotomo Kato
- Division of Medical Zoology, Department of Infection and Immunity, Jichi Medical University, Tochigi, Japan
| | - Abraham G. Cáceres
- Sección de Entomología, Instituto de Medicina Tropical “Daniel A. Carrión” y Departamento Académico de Microbiología Médica, Facultad de Medicina Humana, Universidad Nacional Mayor de San Marcos, Lima, Perúu
- Laboratorio de Entomología, Instituto Nacional de Salud, Lima, Perúu
| | - Chisato Seki
- Division of Medical Zoology, Department of Infection and Immunity, Jichi Medical University, Tochigi, Japan
| | - Carmen Rosa Silupu García
- Laboratorio de Parasitología, Dirección de Laboratorio de Salud Pública, Dirección Regional de Salud Piura, Piura, Peru
| | - Carlos Holguín Mauricci
- Laboratorio de Parasitología, Dirección de Laboratorio de Salud Pública, Dirección Regional de Salud Piura, Piura, Peru
| | - Salvadora Concepción Castro Martínez
- Laboratorio del Centro de Salud Motupe, Micro Red de Salud Motupe, Red de Salud Lambayeque, Gerencia Regional de Salud Lambayeque, Lambayeque, Peru
| | - Dafne Moreno Paico
- Laboratorio del Centro de Salud Motupe, Micro Red de Salud Motupe, Red de Salud Lambayeque, Gerencia Regional de Salud Lambayeque, Lambayeque, Peru
| | - Josefa Leila Castro Muniz
- Laboratorio del Comité Local de Administración en Salud (CLAS) de Colasay, Sub Región de Salud Jaén, Dirección Regional de Salud Cajamarca, Cajamarca, Peru
| | - Lucinda Doriz Troyes Rivera
- Laboratorio del Comité Local de Administración en Salud (CLAS) de Colasay, Sub Región de Salud Jaén, Dirección Regional de Salud Cajamarca, Cajamarca, Peru
| | - Zoila Isabel Villegas Briones
- Laboratorio del Comité Local de Administración en Salud (CLAS) de Colasay, Sub Región de Salud Jaén, Dirección Regional de Salud Cajamarca, Cajamarca, Peru
| | - Silvia Guerrero Quincho
- Laboratorio de Referencia Regional de Salud Pública, Dirección Regional de Salud Ayacucho, Ayacucho, Peru
| | - Guísela Lucy Sulca Jayo
- Laboratorio de Referencia Regional de Salud Pública, Dirección Regional de Salud Ayacucho, Ayacucho, Peru
| | - Edwin Tineo Villafuerte
- Laboratorio de Referencial Regional de Salud Púbica, Dirección Regional de Salud Madre de Dios, Madre de Dios, Peru
| | | | - Fernando Rafael Arias
- Laboratorio de Referencia Regional de Salud Pública, Dirección Regional de Salud Puno, Puno, Peru
| | - Fredy Santiago Passara
- Laboratorio de Referencia Regional de Salud Pública, Dirección Regional de Salud Puno, Puno, Peru
| | - Nancy Ruelas Llerena
- Departamento de Microbiología y Patología, Facultad de Medicina, Universidad Nacional de San Agustín, Arequipa, Peru
| | - Makoto Kubo
- Division of Immunology, Kitasato University School of Allied Health Sciences, Kanagawa, Japan
| | - Ahmed Tabbabi
- Division of Medical Zoology, Department of Infection and Immunity, Jichi Medical University, Tochigi, Japan
| | - Daisuke S. Yamamoto
- Division of Medical Zoology, Department of Infection and Immunity, Jichi Medical University, Tochigi, Japan
| | - Yoshihisa Hashiguchi
- Departamento de Parasitologia y Medicina Tropical, Facultad de Ciencias Medicas, Universidad Catolica de Santiago de Guayaquil, Guayaquil, Ecuador
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Kato H, Gomez EA, Seki C, Furumoto H, Martini-Robles L, Muzzio J, Calvopiña M, Velez L, Kubo M, Tabbabi A, Yamamoto DS, Hashiguchi Y. PCR-RFLP analyses of Leishmania species causing cutaneous and mucocutaneous leishmaniasis revealed distribution of genetically complex strains with hybrid and mito-nuclear discordance in Ecuador. PLoS Negl Trop Dis 2019; 13:e0007403. [PMID: 31059516 PMCID: PMC6522058 DOI: 10.1371/journal.pntd.0007403] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2019] [Revised: 05/16/2019] [Accepted: 04/22/2019] [Indexed: 01/19/2023] Open
Abstract
PCR-Restriction Fragment Length Polymorphism (RFLP) analyses targeting multiple nuclear genes were established for the simple and practical identification of Leishmania species without using expensive equipment. This method was applied to 92 clinical samples collected at 33 sites in 14 provinces of Ecuador, which have been identified at the species level by the kinetoplast cytochrome b (cyt b) gene sequence analysis, and the results obtained by the two analyses were compared. Although most results corresponded between the two analyses, PCR-RFLP analyses revealed distribution of hybrid strains between Leishmania (Viannia) guyanensis and L. (V.) braziliensis and between L. (V.) guyanensis and L. (V.) panamensis, of which the latter was firstly identified in Ecuador. Moreover, unexpected parasite strains having the kinetoplast cyt b gene of L. (V.) braziliensis and nuclear genes of L. (V.) guyanensis, L. (V.) panamensis, or a hybrid between L. (V.) guyanensis and L. (V.) panamensis were identified. This is the first report of the distribution of a protozoan parasite having mismatches between kinetoplast and nuclear genes, known as mito-nuclear discordance. The result demonstrated that genetically complex Leishmania strains are present in Ecuador. Since genetic exchanges such as hybrid formation were suggested to cause higher pathogenicity in Leishmania and may be transmitted by more species of sand flies, further country-wide epidemiological studies on clinical symptoms, as well as transmissible vectors, will be necessary.
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Affiliation(s)
- Hirotomo Kato
- Division of Medical Zoology, Department of Infection and Immunity, Jichi Medical University, Tochigi, Japan
| | - Eduardo A. Gomez
- Departamento de Parasitologia y Medicina Tropical, Facultad de Ciencias Medicas, Universidad Catolica de Santiago de Guayaquil, Guayaquil, Ecuador
| | - Chisato Seki
- Division of Medical Zoology, Department of Infection and Immunity, Jichi Medical University, Tochigi, Japan
| | - Hayato Furumoto
- Laboratory of Parasitology, Department of Disease Control, Graduate School of Veterinary Medicine, Hokkaido University, Hokkaido, Japan
| | - Luiggi Martini-Robles
- Hospital de Especialidades Guayaquil “Dr. Abel Gilberto Pinton”, Ministerio de Salud Publica, Guayaquil, Ecuador
| | - Jenny Muzzio
- Departamento de Parasitologia, Insitituto de Investigacion de Salud Publica, Guayaquil, Ecuador
| | - Manuel Calvopiña
- Escuela de Medicina, Facultad de Ciencias de la Salud, Universidad De Las Américas (UDLA), Quito, Ecuador
| | - Lenin Velez
- Departamento de Parasitologia y Medicina Tropical, Facultad de Ciencias Medicas, Universidad Catolica de Santiago de Guayaquil, Guayaquil, Ecuador
| | - Makoto Kubo
- Division of Immunology, Kitasato University School of Allied Health Sciences, Kanagawa, Japan
| | - Ahmed Tabbabi
- Division of Medical Zoology, Department of Infection and Immunity, Jichi Medical University, Tochigi, Japan
| | - Daisuke S. Yamamoto
- Division of Medical Zoology, Department of Infection and Immunity, Jichi Medical University, Tochigi, Japan
| | - Yoshihisa Hashiguchi
- Departamento de Parasitologia y Medicina Tropical, Facultad de Ciencias Medicas, Universidad Catolica de Santiago de Guayaquil, Guayaquil, Ecuador
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Rojas-Jaimes J, Rojas-Palomino N, Pence J, Lescano AG. Leishmania species in biopsies of patients with different clinical manifestations identified by high resolution melting and nested PCR in an Endemic district in Peru. Parasite Epidemiol Control 2019; 4:e00095. [PMID: 30847411 PMCID: PMC6378838 DOI: 10.1016/j.parepi.2019.e00095] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2018] [Revised: 01/10/2019] [Accepted: 02/09/2019] [Indexed: 12/01/2022] Open
Abstract
Background The parasite of the genus Leishmania causes a neglected disease known as leishmaniasis, which has different clinical aspects depending on the species that infects the person and the immune response of the patient. The objective was to determine, using molecular biology, the current circulating species of Leishmania in biopsies of different types of cutaneous leishmaniasis (CL) from the endemic district in the region of “Madre de Dios”, Peru. Methods The study's 19 samples were obtained in the Huepethue district in the “Madre de Dios” region from patients who were diagnosed for suspected leishmaniasis infection with three clinical manifestations. These were analyzed using kDNA-PCR, Nested-PCR and HRM-PCR to identify the genus of an infecting parasite as well as its species. Results kDNA-PCR detected all tests for the genus of Leishmania to be positive, while the Nested-PCR could not detect 20.9% of species (one L. (V.) braziliensis and three L. (V.) amazonensis), and the HRM-PCR detected all species presented in the samples. The most prevalent species was L. (V.) braziliensis (73.7%), and the clinical manifestations were ulcers (63.2%), superficial scabs (5.3%) and diffuse form (5.3%), followed by L. (V.) amazonensis (15.8%), manifesting ulcers (15.6%), and L. (V.) lainsoni (10.5%), manifesting superficial scabs (5.3%) and ulcers (5.3%). L. (V.) braziliensis, L. (V.) amazonensis and L. (V.) lainsoni were detected effectively using HRM-PCR in the samples with different clinical manifestations. Conclusions Highlighting the findings of a high diversity of Leishmania species using High Resolution Melting PCR in biopsies with different clinical manifestations of cutaneous leishmaniasis.
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Affiliation(s)
| | | | - James Pence
- Escuela de Medicina Humana, Universidad Científica del Sur, Lima, Peru
| | - Andres G Lescano
- Facultad de Salud Pública y Administración, Universidad Peruana Cayetano Heredia, Lima, Peru
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Paniz Mondolfi AE, Colmenares Garmendia A, Mendoza Pérez Y, Hernández-Pereira CE, Medina C, Vargas F, Sandoval D, Agüero J, Román D, Forlano-Riera M, Salas Y, Peraza M, Romero P, Aldana F, Castillo T, Santeliz S, Perez G, Suarez-Alvarado MJ, Morales-Panza RJ, Kato H. Autochthonous cutaneous leishmaniasis in urban domestic animals (Felis catus / Canis lupus familiaris) from central-western Venezuela. Acta Trop 2019; 191:252-260. [PMID: 30633896 DOI: 10.1016/j.actatropica.2019.01.006] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2018] [Revised: 01/06/2019] [Accepted: 01/07/2019] [Indexed: 11/18/2022]
Abstract
Leishmaniasis is a zoonotic disease caused by intracellular protozoa of the Leishmania genus that are spread and transmitted by sandflies. Natural infection and clinical disease in domestic cats and dogs appear to be rare or perhaps largely under-reported in endemic areas. However, previous reports on infected domestic animals usually implicate the same Leishmania species that affect humans in tropical and subtropical areas of the world suggesting a potential role for zoonotic transmission. In the present study we assessed a representative sample of cats and dogs from endemic urban / suburban areas of Lara state in central western Venezuela. In both dogs and cats, cutaneous disease exhibits a spectrum of manifestations that range from single papules or nodules, which may evolve into ulcerative, plaque-like or scaly lesions. Cytochrome b (cyt b) PCR gene sequence analysis revealed L. mexicana as the causative agent in all cases, including two human cases proceeding from the same study area at the same time the study was carried out. In order to improve our understanding on feline/canine infection with Leishmania mexicana, and address potential zoonotic concerns it is necessary to characterize its enzootic reservoirs and vectors as well as the possible anthropophilic players linking to the peridomestic and domestic cycles.
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Affiliation(s)
- A E Paniz Mondolfi
- Clínica IDB Cabudare, Instituto de Investigaciones Biomédicas IDB, Department of Tropical Medicine and Infectious Diseases, Cabudare, Lara State 3023, Venezuela; Instituto Venezolano de los Seguros Sociales (IVSS), Caracas, Venezuela.
| | - A Colmenares Garmendia
- Infectious Diseases Research Incubator and the Zoonosis and Emerging Pathogens Regional Collaborative Network, Department of Tropical Medicine and Infectious Diseases, Clínica IDB Cabudare, Instituto de Investigaciones Biomédicas IDB, Cabudare, Lara State 3023, Venezuela; Health Sciences Department, School of Veterinary Medicine, Universidad Centrooccidental Lisandro Alvarado, Cabudare, Lara State 3023, Venezuela
| | - Y Mendoza Pérez
- Infectious Diseases Research Incubator and the Zoonosis and Emerging Pathogens Regional Collaborative Network, Department of Tropical Medicine and Infectious Diseases, Clínica IDB Cabudare, Instituto de Investigaciones Biomédicas IDB, Cabudare, Lara State 3023, Venezuela; Health Sciences Department, School of Veterinary Medicine, Universidad Centrooccidental Lisandro Alvarado, Cabudare, Lara State 3023, Venezuela
| | - C E Hernández-Pereira
- Infectious Diseases Research Incubator and the Zoonosis and Emerging Pathogens Regional Collaborative Network, Department of Tropical Medicine and Infectious Diseases, Clínica IDB Cabudare, Instituto de Investigaciones Biomédicas IDB, Cabudare, Lara State 3023, Venezuela; Health Sciences Department, College of Medicine. Universidad Centrooccidental Lisandro Alvarado. Barquisimeto, Lara State 3001, Venezuela
| | - C Medina
- Department of Public Health, Epidemiology and Zoonoses, School of Veterinary Medicine Universidad Centrooccidental Lisandro Alvarado, Cabudare, Lara State 3023, Venezuela
| | - F Vargas
- Department of Medicine and Surgery, School of Veterinary Medicine Universidad Centrooccidental Lisandro Alvarado, Cabudare, Lara State 3023, Venezuela
| | - D Sandoval
- Health Sciences Department, School of Veterinary Medicine, Universidad Centrooccidental Lisandro Alvarado, Cabudare, Lara State 3023, Venezuela
| | - J Agüero
- Departments of Small Animals and Dermatology, "Dr. Luis de Leon Clinic", Barquisimeto, Lara State 3023, Venezuela
| | - D Román
- Department of Surgery of Small Animals, INSUAGRO, Barquisimeto, Lara State, 3023, Venezuela
| | - M Forlano-Riera
- Department of Public Health, Veterinarian Parasitology, School of Veterinary Medicine Universidad Centrooccidental Lisandro Alvarado, Cabudare, Lara State 3023, Venezuela
| | - Y Salas
- Department of Medicine, Surgery and Pathology, School of Veterinary Medicine Universidad Centrooccidental Lisandro Alvarado, Cabudare, Lara State 3023, Venezuela
| | - M Peraza
- Department of Small Animals, School of Veterinary Medicine Universidad Centrooccidental Lisandro Alvarado, Cabudare, Lara State 3023, Venezuela
| | - P Romero
- Department of Medicine and Surgery, School of Veterinary Medicine Universidad Centrooccidental Lisandro Alvarado, Cabudare, Lara State 3023, Venezuela
| | - F Aldana
- Department of Small Animals, School of Veterinary Medicine Universidad Centrooccidental Lisandro Alvarado, Cabudare, Lara State 3023, Venezuela
| | - T Castillo
- Department of Medicine and Surgery, School of Veterinary Medicine Universidad Centrooccidental Lisandro Alvarado, Cabudare, Lara State 3023, Venezuela
| | - S Santeliz
- Department of Medicine and Surgery, School of Veterinary Medicine Universidad Centrooccidental Lisandro Alvarado, Cabudare, Lara State 3023, Venezuela
| | - G Perez
- Department of Medicine and Surgery, School of Veterinary Medicine Universidad Centrooccidental Lisandro Alvarado, Cabudare, Lara State 3023, Venezuela
| | - M J Suarez-Alvarado
- Infectious Diseases Research Incubator and the Zoonosis and Emerging Pathogens Regional Collaborative Network, Department of Tropical Medicine and Infectious Diseases, Clínica IDB Cabudare, Instituto de Investigaciones Biomédicas IDB, Cabudare, Lara State 3023, Venezuela; Health Sciences Department, College of Medicine. Universidad Centrooccidental Lisandro Alvarado. Barquisimeto, Lara State 3001, Venezuela
| | - R J Morales-Panza
- Department of Medicine and Surgery, School of Veterinary Medicine Universidad Centrooccidental Lisandro Alvarado, Cabudare, Lara State 3023, Venezuela
| | - H Kato
- Division of Medical Zoology, Department of Infection and Immunity, Jichi Medical University, Tochigi, Japan
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Leishmaniasis caused by Leishmania (Viannia) guyanensis in north-central Pacific region of Ecuador: A clinico-epidemiological feature. Acta Trop 2018; 185:204-211. [PMID: 29852129 DOI: 10.1016/j.actatropica.2018.05.016] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Revised: 05/08/2018] [Accepted: 05/26/2018] [Indexed: 10/14/2022]
Abstract
The current four year study was undertaken to investigate the clinical and epidemiological features of Leishmania (Viannia) guyanensis infections in Valle Hermoso, Santo Domingo de Los Tsachilas province, north-central Pacific areas of Ecuador. A total of 155 parasitologically confirmed (Leishmania-amastigote-positive) clinical cases diagnosed at a rural health center during January 2014-December 2017 were analyzed thoroughly. Molecular characterization of the causative Leishmania parasites from different endemic sites within the study areas was performed by PCR amplification of cytochrome b (cyt b) sequencing. All the FTA-card and/or smear impregnated materials tested were characterized, and identified as L. (V.) guyanensis, without detecting any other Leishmania species. The following features were described: 1) the majority of patients were suffered from a single ulcer lesion (simple and mild to chronic), followed by multiple lesions, including recidiva cutis-"like" and Chiclero's ulcer-"like" clinical forms; 2) the majority (65.70%) of lesions were less than 10 mm in size, and distributed mainly on the upper body regions (arm, forearm, face, and neck including ear and head); 3) about 30% (29.68%) of the subjects tested were less than 10 years of age, strongly suggesting the intra- and/or peri-domestic transmission of the disease in the areas. The current clinico-epidemiological feature detected emphasizes the need for further such investigations of the L. (V.) guyanensis infections prevalent at different Pacific ecoregions of Ecuador, including Amazon regions.
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Hashiguchi Y, Gomez EAL, Cáceres AG, Velez LN, Villegas NV, Hashiguchi K, Mimori T, Uezato H, Kato H. Andean cutaneous leishmaniasis (Andean-CL, uta) in Peru and Ecuador: the causative Leishmania parasites and clinico-epidemiological features. Acta Trop 2018; 177:135-145. [PMID: 29017878 DOI: 10.1016/j.actatropica.2017.09.028] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2017] [Revised: 09/18/2017] [Accepted: 09/30/2017] [Indexed: 11/28/2022]
Abstract
This study provides comprehensive information on the past and current status of the Andean cutaneous leishmaniasis (Andean-CL, uta) in Peru and Ecuador, mainly focusing on the causative Leishmania parasites and clinico-epidemiological features. Available information and data including our unpublished works were analyzed thoroughly. Endemic regions of the Andean-CL (uta) in Peru run from the north Piura/Cajamarca to the south Ayacucho at a wide range of the Pacific watersheds of the Andes through several departments, while in Ecuador those exist at limited and spotted areas in the country's mid-southwestern two provinces, Azuay and Chimborazo. The principal species of the genus Leishmania are completely different at subgenus level, L. (Viannia) peruviana in Peru, and L. (Leishmania) mexicana and L. (L.) major-like (infrequent occurrence) in Ecuador. The Peruvian uta is now prevalent in different age and sex groups, being not clearly defined as found in the past. The precise reasons are not known and should be elucidated further, though probable factors, such as emergence of other Leishmania parasites, non-immune peoples' migration into the areas, etc., were discussed briefly in the text. The Andean-CL cases in Ecuador are more rural than before, probably because of a rapid development of the Leishmania-positive communities and towns, and the change of life-styles of the inhabitants, including newly constructed houses and roads in the endemic areas. Such information is helpful for future management of the disease, not only for Leishmania-endemic areas in the Andes but also for other endemic areas.
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Affiliation(s)
- Yoshihisa Hashiguchi
- Departamento de Parasitologia y Medicina Tropical, Centro de Biomedicina, Carrera de Medicina, Facultad de Ciencias Medicas, Universidad Catolica de Santiago de Guayaquil, Guayaquil, Ecuador; Leishmaniasis Project, Facultad de Ciencias Medicas, Universidad Catolica de Santiago de Guayaquil, Guayaquil, Ecuador; Department of Parasitology, Kochi Medical School, Kochi University, Kochi, Japan.
| | - Eduardo A L Gomez
- Departamento de Parasitologia y Medicina Tropical, Centro de Biomedicina, Carrera de Medicina, Facultad de Ciencias Medicas, Universidad Catolica de Santiago de Guayaquil, Guayaquil, Ecuador; Leishmaniasis Project, Facultad de Ciencias Medicas, Universidad Catolica de Santiago de Guayaquil, Guayaquil, Ecuador
| | - Abraham G Cáceres
- Seccion de Entomologia, Instituto de Medicina Tropical "Daniel A. Carrion" y Departamento Academico de Microbiologia, Facultad de Medicina Humana, Universidad Nacional Mayor de San Marcos, Lima, Peru; Laboratorio de Entomologia, Instituto Nacional de Salud, Lima, Peru
| | - Lenin N Velez
- Departamento de Parasitologia y Medicina Tropical, Centro de Biomedicina, Carrera de Medicina, Facultad de Ciencias Medicas, Universidad Catolica de Santiago de Guayaquil, Guayaquil, Ecuador; Leishmaniasis Project, Facultad de Ciencias Medicas, Universidad Catolica de Santiago de Guayaquil, Guayaquil, Ecuador
| | - Nancy V Villegas
- Departamento de Parasitologia y Medicina Tropical, Centro de Biomedicina, Carrera de Medicina, Facultad de Ciencias Medicas, Universidad Catolica de Santiago de Guayaquil, Guayaquil, Ecuador; Leishmaniasis Project, Facultad de Ciencias Medicas, Universidad Catolica de Santiago de Guayaquil, Guayaquil, Ecuador
| | - Kazue Hashiguchi
- Leishmaniasis Project, Facultad de Ciencias Medicas, Universidad Catolica de Santiago de Guayaquil, Guayaquil, Ecuador
| | - Tatsuyuki Mimori
- Department of Microbiology, Faculty of Life Sciences, Graduate School of Health Sciences, Kumamoto University, Kumamoto, Japan
| | - Hiroshi Uezato
- Department of Dermatology, Faculty of Medicine, University of the Ryukyus, Okinawa, Japan
| | - Hirotomo Kato
- Division of Medical Zoology, Department of Infection and Immunity, Jichi Medical University, Tochigi, Japan
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Distribution and identification of sand flies naturally infected with Leishmania from the Southeastern Peruvian Amazon. PLoS Negl Trop Dis 2017; 11:e0006029. [PMID: 29107954 PMCID: PMC5673161 DOI: 10.1371/journal.pntd.0006029] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2017] [Accepted: 10/10/2017] [Indexed: 11/27/2022] Open
Abstract
Background Cutaneous leishmaniasis (CL) is an important health problem in the New World affecting civilian and military populations that are frequently exposed in endemic settings. The Peruvian region of Madre de Dios located near the border with Brazil is one of the most endemic CL regions in South America with more than 4,451 reported cases between 2010 and 2015 according to the Peruvian epidemiology directorate. However, little is known regarding the diversity and distribution of sand fly vectors in this region. In this study, we aimed to characterize the sand fly fauna in this endemic setting and identify sand fly species naturally infected with Leishmania possibly involved in pathogen transmission. Methods Sand fly collections were carried out during 2014 and 2015 in the communities of Flor de Acre, Villa Primavera, Mavila and Arca Pacahuara using CDC light traps and Shannon traps. Collected specimens were identified and non-blood-fed females were selected for Leishmania infection screening using kinetoplastid DNA-PCR (kDNA-PCR) and nested Real time PCR for species identification. Results A total of 10,897 phlebotomines belonging to the genus Lutzomyia (58 species) and Brumptomyia (2 species) were collected. Our study confirmed the widespread distribution and abundance of Lutzomyia (Trichophoromyia) spp. (24%), Lu. whitmani (19.4%) and Lu. yucumensis (15.8%) in the region. Analysis of Shannon diversity index indicates variability in sand fly composition across sites with Villa Primavera presenting the highest sand fly diversity and abundance. Leishmania screening by kDNA-PCR resulted in 45 positive pools collected from Flor de Acre (34 pools), Mavila (10 pools) and Arca Pacahuara (1 pool) and included 14 species: Lu. yucumensis, Lu. aragoi, Lu. sallesi, Lu. sherlocki, Lu. shawi, Lu. walkeri, Lu nevesi, Lu. migonei, Lu. davisi, Lu. carrerai, Lu. hirsuta, Lu. (Trichophoromyia) spp., Lu. llanosmartinsi and Lu. whitmani. Lutzomyia sherlocki, Lu. walkeri and Lu. llanosmartinsi had the highest infection rates (8%, 7% and 6%, respectively). We identified Leishmania guyanensis in two Lu. whitmani pools, and L. braziliensis in two Lu. llanosmartinsi pools and one Lu. davisi pool. Conclusions Based on our collections there is high sand fly diversity in Madre de Dios, with differences in sand fly abundance and species composition across sites. We identified 14 sand fly species naturally infected with Leishmania spp., having detected natural infection with L. (V.) guyanensis and L. (V.) braziliensis in three sand fly species. These results suggest the presence of several potential vectors that vary in their spatial and geographical distribution, which could explain the high prevalence of CL cases in this region. Leishmaniasis is a neglected disease that affects more than 2 million people worldwide. The identification of putative Leishmania vectors is an important step towards the design of better control strategies and estimating the risk of transmission in endemic areas. In this paper the authors explored the distribution of sand flies and identified potential vectors in a largely unexplored setting in the Southeastern Peruvian Amazon Basin. Three new sand fly species Lutzomyia naiffi, Lu. dereuri and Lu. flabellata are reported for Peru. In addition, they found fourteen sand fly species naturally infected with Leishmania that comprised seven new reports for Peru and one for the Americas. This information will serve as a baseline for future surveillance and intervention studies in this highly endemic area.
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Hashiguchi Y, Velez LN, Villegas NV, Mimori T, Gomez EA, Kato H. Leishmaniases in Ecuador: Comprehensive review and current status. Acta Trop 2017; 166:299-315. [PMID: 27919688 DOI: 10.1016/j.actatropica.2016.11.039] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2016] [Revised: 11/17/2016] [Accepted: 11/27/2016] [Indexed: 10/20/2022]
Abstract
This article reviews current knowledge about leishmaniases in Ecuador, proceeding from 1920, when the first human case was described, to the present, mainly focusing on the recent research events published. Regarding basic situations, it appears that 23 of Ecuador's 24 provinces have leishmaniasis-case reports. The disease is one of the mandatory notification infectious diseases in the country since 2005. All the 21,305 cases notified to the Ministry of Public Health, during the period from 2001 through 2014, were said to involve different clinical features of cutaneous leishmaniasis (CL) but not visceral (VL). Eight Leishmania species, L. (Viannia) guyanensis, L. (V.) panamensis, L. (V.) braziliensis, L. (Leishmania) mexicana, L. (L.) amazonensis, L. (L.) major-like, L. (V.) naiffiand L. (V.) lainsoni were characterized. The last two species were most recently reported from the Ecuadorian Amazon regions. Of the 73 Ecuadorian Lutzomyia species (43 man-biting species) recorded, only four, Lu. trapidoi, Lu. gomezi, Lu. ayacuchensis, and Lu. tortura were incriminated as vectors of the Leishmania parasites. Current knowledge on the reservoir hosts of Leishmania in Ecuador is extremely poor. Recently, in Ecuador different kinds of molecular techniques were developed for diagnosis and mass screening of the disease, employing various materials derived from patients and sand fly vectors. These are PCR-RFLP, colorimetric FTA-LAMP etc. Brief comments and recommendations were also given, for future research and control of leishmaniases in Ecuador.
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Kato H, Gomez EA, Martini-Robles L, Muzzio J, Velez L, Calvopiña M, Romero-Alvarez D, Mimori T, Uezato H, Hashiguchi Y. Geographic Distribution of Leishmania Species in Ecuador Based on the Cytochrome B Gene Sequence Analysis. PLoS Negl Trop Dis 2016; 10:e0004844. [PMID: 27410039 PMCID: PMC4943627 DOI: 10.1371/journal.pntd.0004844] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2016] [Accepted: 06/22/2016] [Indexed: 11/18/2022] Open
Abstract
A countrywide epidemiological study was performed to elucidate the current geographic distribution of causative species of cutaneous leishmaniasis (CL) in Ecuador by using FTA card-spotted samples and smear slides as DNA sources. Putative Leishmania in 165 samples collected from patients with CL in 16 provinces of Ecuador were examined at the species level based on the cytochrome b gene sequence analysis. Of these, 125 samples were successfully identified as Leishmania (Viannia) guyanensis, L. (V.) braziliensis, L. (V.) naiffi, L. (V.) lainsoni, and L. (Leishmania) mexicana. Two dominant species, L. (V.) guyanensis and L. (V.) braziliensis, were widely distributed in Pacific coast subtropical and Amazonian tropical areas, respectively. Recently reported L. (V.) naiffi and L. (V.) lainsoni were identified in Amazonian areas, and L. (L.) mexicana was identified in an Andean highland area. Importantly, the present study demonstrated that cases of L. (V.) braziliensis infection are increasing in Pacific coast areas.
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Affiliation(s)
- Hirotomo Kato
- Division of Medical Zoology, Department of Infection and Immunity, Jichi Medical University, Tochigi, Japan
- Laboratory of Parasitology, Department of Disease Control, Graduate School of Veterinary Medicine, Hokkaido University, Hokkaido, Japan
- * E-mail:
| | - Eduardo A. Gomez
- Departamento de Parasitologia y Medicina Tropical, Facultad de Ciencias Medicas, Universidad Catolica de Santiago de Guayaquil, Guayaquil, Ecuador
| | - Luiggi Martini-Robles
- Departamento de Parasitologia, Insitituto de Investigacion de Salud Publica, Guayaquil, Ecuador
| | - Jenny Muzzio
- Departamento de Parasitologia, Insitituto de Investigacion de Salud Publica, Guayaquil, Ecuador
| | - Lenin Velez
- Departamento de Parasitologia y Medicina Tropical, Facultad de Ciencias Medicas, Universidad Catolica de Santiago de Guayaquil, Guayaquil, Ecuador
| | - Manuel Calvopiña
- Centro de Biomedicina, Facultad de Medicina, Universidad Central del Ecuador, Quito, Ecuador
| | - Daniel Romero-Alvarez
- Centro de Biomedicina, Facultad de Medicina, Universidad Central del Ecuador, Quito, Ecuador
| | - Tatsuyuki Mimori
- Department of Microbiology, Faculty of Life Sciences, Graduate School of Health Sciences, Kumamoto University, Kumamoto, Japan
| | - Hiroshi Uezato
- Department of Dermatology, Faculty of Medicine, University of the Ryukyus, Okinawa, Japan
| | - Yoshihisa Hashiguchi
- Departamento de Parasitologia y Medicina Tropical, Facultad de Ciencias Medicas, Universidad Catolica de Santiago de Guayaquil, Guayaquil, Ecuador
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Koarashi Y, Cáceres AG, Saca FMZ, Flores EEP, Trujillo AC, Alvares JLA, Yoshimatsu K, Arikawa J, Katakura K, Hashiguchi Y, Kato H. Identification of causative Leishmania species in Giemsa-stained smears prepared from patients with cutaneous leishmaniasis in Peru using PCR-RFLP. Acta Trop 2016; 158:83-87. [PMID: 26943992 DOI: 10.1016/j.actatropica.2016.02.024] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2016] [Revised: 02/18/2016] [Accepted: 02/27/2016] [Indexed: 11/15/2022]
Abstract
A PCR-Restriction Fragment Length Polymorphism (RFLP) targeting the mannose phosphate isomerase gene was established to differentiate Leishmania species distributed near the Department of Huanuco, Peru. The technique was applied to 267 DNA samples extracted from Giemsa-stained smears of cutaneous lesions taken from patients suspected for cutaneous leishmaniasis in the area, and the present status of causative Leishmania species was identified. Of 114 PCR-amplified samples, 22, 19, 24 and 49 samples were identified to be infected by Leishmania (Viannia) braziliensis, L. (V.) peruviana, L. (V.) guyanensis, and a hybrid of L. (V.) braziliensis/L. (V.) peruviana, respectively, and the validity of PCR-RFLP was confirmed by sequence analysis. Since PCR-RFLP is simple and rapid, the technique will be a useful tool for the epidemiological study of leishmaniasis.
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Affiliation(s)
- Yu Koarashi
- Laboratory of Parasitology, Department of Disease Control, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo, Japan; Department of Microbiology, Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Abraham G Cáceres
- Sección de Entomología, Instituto de Medicina Tropical "Daniel A. Carrión" y Departamento Académico de Microbiología Médica, Facultad de Medicina Humana, Universidad Nacional Mayor de San Marcos, Lima, Peru; Laboratorio de Entomología, Instituto Nacional de Salud, Lima, Peru
| | | | | | | | - José Luis Abanto Alvares
- Vigilancia Entomológica y Control Vectorial, Dirección de Saneamiento Ambiental, DIRESA Huánuco, Peru
| | - Kumiko Yoshimatsu
- Department of Microbiology, Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Jiro Arikawa
- Department of Microbiology, Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Ken Katakura
- Laboratory of Parasitology, Department of Disease Control, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo, Japan
| | - Yoshihisa Hashiguchi
- Parasitologia y Medicina Tropical, Facultad de Medicina, Universidad Catolica de Santiago de Guayaquil, Guayaquil, Ecuador; Department of Parasitology, Kochi Medical School, Kochi University, Kochi, Japan
| | - Hirotomo Kato
- Laboratory of Parasitology, Department of Disease Control, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo, Japan.
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Teles CBG, Medeiros JF, Santos APDAD, Freitas LARD, Katsuragawa TH, Cantanhêde LM, Ferreira RDGM, Camarg LMA. MOLECULAR CHARACTERIZATION OF AMERICAN CUTANEOUS LEISHMANIASIS IN THE TRI‑BORDER AREA OF ASSIS BRASIL, ACRE STATE, BRAZIL. Rev Inst Med Trop Sao Paulo 2016; 57:343-7. [PMID: 26422160 PMCID: PMC4616921 DOI: 10.1590/s0036-46652015000400012] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
In this study, Leishmaniaspecies were identified by Polymerase Chain Reaction (PCR). The epidemiology of patients suspected of having American Cutaneous Leishmaniasis in the municipality of Assis Brasil, Acre State, located in the Brazil/Peru/Bolivia triborder was also investigated. By PCR, the DNA of Leishmaniawas detected in 100% of the cases (37 samples) and a PCR-Restriction Fragment Length Polymorphism (RFLP) of the hsp 70gene identified the species in 32 samples: Leishmania (Viannia) braziliensis (65.6%) , L. (V.) shawi (28.1%) , L. (V.) guyanensis (3.1%) and mixed infection L. (V.) guyanensis and L. (Leishmania) amazonensis (3.1%)This is the first report of L. (V.) shawiand L. (L.) amazonensis in Acre. The two predominant species were found in patients living in urban and rural areas. Most cases were found in males living in rural areas for at least three years and involved in rural work. This suggests, in most cases, a possible transmission of the disease from a rural/forest source, although some patients had not engaged in activities associated with permanence in forestall areas, which indicate a possible sandflies adaptation to the periurban setting.
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First Human Cases of Leishmania (Viannia) lainsoni Infection and a Search for the Vector Sand Flies in Ecuador. PLoS Negl Trop Dis 2016; 10:e0004728. [PMID: 27191391 PMCID: PMC4871579 DOI: 10.1371/journal.pntd.0004728] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2015] [Accepted: 05/02/2016] [Indexed: 11/19/2022] Open
Abstract
An epidemiological study of leishmaniasis was performed in Amazonian areas of Ecuador since little information on the prevalent Leishmania and sand fly species responsible for the transmission is available. Of 33 clinical specimens from patients with cutaneous leishmaniasis (CL), causative parasites were identified in 25 samples based on cytochrome b gene analysis. As reported previously, Leishmania (Viannia) guyanensis and L. (V.) braziliensis were among the causative agents identified. In addition, L. (V.) lainsoni, for which infection is reported in Brazil, Bolivia, Peru, Suriname, and French Guiana, was identified in patients with CL from geographically separate areas in the Ecuadorian Amazon, corroborating the notion that L. (V.) lainsoni is widely distributed in South America. Sand flies were surveyed around the area where a patient with L. (V.) lainsoni was suspected to have been infected. However, natural infection of sand flies by L. (V.) lainsoni was not detected. Further extensive vector searches are necessary to define the transmission cycle of L. (V.) lainsoni in Ecuador. In Ecuador, leishmaniasis is endemic in Pacific coast subtropical, Amazonian, and Andean highland areas. Seven Leishmania species, Leishmania (Leishmania) mexicana, L. (L.) amazonensis, L. (L.) major-like, Leishmania (Viannia) guyanensis, L. (V.) panamensis, L. (V.) braziliensis, and L. (V.) naiffi, are reported to be associated with human cutaneous (CL) and mucocutaneous leishmaniases (MCL). Causative parasites have been studied extensively in Pacific coast and Andean areas; however, information such as prevalent Leishmania species and their vector sand fly species is very sparse in Amazonian areas. Giemsa-stained smears taken from patients’ skin ulcers and used for routine diagnosis of CL and Flinders Technology Associates (FTA) card-spotted samples were utilized as DNA sources, and causative parasites were identified on the basis of cytochrome b gene analysis. Causative parasites in 25 samples were successfully identified, and, in addition to previously reported species, L. (V.) guyanensis and L. (V.) braziliensis, L. (V.) lainsoni was identified from two patients living in different areas situated more than 200 km apart. Sand flies were examined in areas where one of the L. (V.) lainsoni infected patient was suspected to have been infected. Although 1,104 female sand flies were dissected and examined for species identification and detection of natural infection with flagellates in the gut, human-infective Leishmania species including L. (V.) lainsoni were not detected. Further extensive investigation of sand fly fauna is necessary to incriminate the vector of this parasite in Ecuador.
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Hashiguchi Y, Gomez EL, Kato H, Martini LR, Velez LN, Uezato H. Diffuse and disseminated cutaneous leishmaniasis: clinical cases experienced in Ecuador and a brief review. Trop Med Health 2016; 44:2. [PMID: 27398061 PMCID: PMC4934146 DOI: 10.1186/s41182-016-0002-0] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2015] [Accepted: 10/28/2015] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND In Ecuador, cutaneous leishmaniasis (CL) is prevalent countrywide, but only one case of diffuse-CL and two cases of disseminated-CL were experienced during our research activities more than 30 years from 1982 to date. These three patients suffered from multiple lesions distributed at a wide range of the body surface, revealing difficulty to clinically differentiate each other. METHODS There is a considerable confusion of the use and/or differentiation of the terminologies (terms) between the two disease forms, diffuse-CL and disseminated-CL. One of the aims of the present study is to clarify the difference between the two disease forms, mainly based on the cases experienced in Ecuador. RESULTS The disseminated-CL case newly reported here was clinically very similar to the diffuse-CL case, but the former showed the following marked differences from the latter: (1) the organisms isolated were identified as the parasites of Leishmania (Viannia) guyanensis/panamensis, which are also known as the causative agents of disseminated-CL in different endemic countries of the New World; (2) the patient was sensitive against antimonials; and (3) mucosal involvement was observed, which is never observed in diffuse-CL. CONCLUSIONS In the text, three clinical cases, one diffuse-CL and two disseminated-CL, were presented. Furthermore, a bibliographic comparison of the features between the two disease forms was made, and a brief comment was also given.
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Affiliation(s)
- Yoshihisa Hashiguchi
- />Facultad de Medicina, Universidad Catolica de Santiago de Guayaquil, Guayaquil, Ecuador
- />Proyecto Prometeo, Secretaría Nacional de Educación Superior, Ciencia, Tecnología e Innovación (SENESCYT), Quito, Ecuador
- />Department of Parasitology, Kochi Medical School, Kochi University, Kochi, Japan
| | - Eduardo L. Gomez
- />Departamento de Medicina Tropical, Facultad de Medicina, Universidad Católica de Santiago de Guayaquil, Guayaquil, Ecuador
- />Servicio Nacional de Erradicacion de la Malaria (SNEM), Ministerio de Salud, Guayaquil, Ecuador
| | - Hirotomo Kato
- />Laboratory of Parasitology, Department of Disease Control, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo, Japan
| | - Luiggi R. Martini
- />Departamento de Parasitología, Instituto Nacional de Investigación de la Salud Pública, Guayaquil, Ecuador
| | - Lenin N. Velez
- />Departamento de Medicina Tropical, Facultad de Medicina, Universidad Católica de Santiago de Guayaquil, Guayaquil, Ecuador
- />Servicio Nacional de Erradicacion de la Malaria (SNEM), Ministerio de Salud, Guayaquil, Ecuador
| | - Hiroshi Uezato
- />Department of Dermatology, Faculty of Medicine, University of the Ryukyus, Okinawa, Japan
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Izadi S, Mirhendi H, Jalalizand N, Khodadadi H, Mohebali M, Nekoeian S, Jamshidi A, Ghatee MA. Molecular Epidemiological Survey of Cutaneous Leishmaniasis in Two Highly Endemic Metropolises of Iran, Application of FTA Cards for DNA Extraction From Giemsa-Stained Slides. Jundishapur J Microbiol 2016; 9:e32885. [PMID: 27127596 PMCID: PMC4842251 DOI: 10.5812/jjm.32885] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2015] [Revised: 11/11/2015] [Accepted: 12/01/2015] [Indexed: 01/06/2023] Open
Abstract
Background: PCR has been used for confirmation of leishmaniasis in epidemiological studies, but complexity of DNA extraction and PCR approach has confined its routine use in developing countries. Objectives: In this study, recent epidemiological situation of cutaneous leishmaniasis (CL) in two hyper-endemic metropolises of Shiraz and Isfahan in Iran was studied using DNA extraction by commercial FTA cards and kinetoplastid DNA (kDNA)-PCR amplification for detection/identification of Leishmania directly from stained skin scraping imprints. Patients and Methods: Fifty four and 30 samples were collected from clinically diagnosed CL patients referred to clinical laboratories of leishmaniasis control centers in Isfahan and Shiraz cities, respectively. The samples were examined by direct microscopy and then scrapings of the stained smears were applied to FTA cards and used directly as DNA source in a nested-PCR to amplify kDNA to detect and identify Leishmania species. Results: Fifty four of 84 (64.2%) slides obtained from patients had positive results microscopically, while 79/84 (94%) of slides had positive results by FTA card-nested-PCR. PCR and microscopy showed a sensitivity of 96.4% and 64.2% and specificity of 100% and 100%, respectively. Interestingly, Leishmania major as causative agent of zoonotic CL was identified in 100% and 90.7% of CL cases from Isfahan and Shiraz cities, respectively, but L. tropica was detected from only 9.3% of cases from Shiraz city. All cases from central regions of Shiraz were L. tropica and no CL case was found in Isfahan central areas. Conclusions: Filter paper-based DNA extraction can facilitate routine use of PCR for diagnosis of CL in research and diagnostic laboratories in Iran and countries with similar conditions. Epidemiologic changes including dominancy of L. major in suburbs of Shiraz and Isfahan metropolises where anthroponotic CL caused by L. tropica had been established, showed necessity of precise studies on CL epidemiology in old urban and newly added districts in the suburbs.
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Affiliation(s)
- Shahrokh Izadi
- Department of Medical Parasitology and Mycology, School of Public Health, Tehran University of Medical Sciences, Tehran, IR Iran
| | - Hossein Mirhendi
- Department of Medical Parasitology and Mycology, School of Public Health, Tehran University of Medical Sciences, Tehran, IR Iran
- Department of Medical Parasitology and Mycology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, IR Iran
| | - Niloufar Jalalizand
- National Health Research Center, Isfahan Health Research Center, Isfahan, IR Iran
| | - Hossein Khodadadi
- Department of Medical Parasitology and Mycology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, IR Iran
| | - Mehdi Mohebali
- Department of Medical Parasitology and Mycology, School of Public Health, Tehran University of Medical Sciences, Tehran, IR Iran
| | - Shahram Nekoeian
- Cellular and Molecular Department, Isfahan Province Health Center, Isfahan, IR Iran
| | - Ali Jamshidi
- Department of Medical Parasitology and Mycology, School of Medicine, Yasuj University of Medical Sciences, Yasuj, IR Iran
| | - Mohammad Amin Ghatee
- Department of Medical Parasitology and Mycology, School of Medicine, Yasuj University of Medical Sciences, Yasuj, IR Iran
- Cellular and Molecular Research Center, Yasuj University of Medical Sciences, Yasuj, IR Iran
- Corresponding author: Mohammad Amin Ghatee, Department of Medical Parasitology and Mycology, School of Medicine, Yasuj University of Medical Sciences, Yasuj, IR Iran. Tel: +98-7433230290, Fax: +98-7433235153, E-mail:
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Polymerase Chain Reaction Diagnosis of Leishmaniasis: A Species-Specific Approach. Methods Mol Biol 2016. [PMID: 26843051 DOI: 10.1007/978-1-4939-3360-0_11] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
Abstract
Leishmaniasis is an infectious disease caused by protozoan parasites of the genus Leishmania which are transmitted to humans through bites of infected sand flies. The variable clinical manifestations and the evolution of the disease are determined by the infecting species. Recognition at a species level is of utmost importance since this greatly impacts therapy decision making as well as predicts outcome for the disease. This chapter describes the application of polymerase chain reaction (PCR) in the detection of Leishmania parasites across the disease spectrum, including protocols for sample collection and transportation, genomic material extraction, and target amplification methods with special emphasis on PCR amplification of the cytochrome b gene for Leishmania spp. species identification.
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Kato H, Cáceres AG, Hashiguchi Y. First Evidence of a Hybrid of Leishmania (Viannia) braziliensis/L. (V.) peruviana DNA Detected from the Phlebotomine Sand Fly Lutzomyia tejadai in Peru. PLoS Negl Trop Dis 2016; 10:e0004336. [PMID: 26735142 PMCID: PMC4703407 DOI: 10.1371/journal.pntd.0004336] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2015] [Accepted: 12/07/2015] [Indexed: 11/18/2022] Open
Abstract
The natural infection of sand flies by Leishmania was examined in the Department of Huanuco of Peru, where cutaneous leishmaniasis caused by a hybrid of Leishmania (Viannia) braziliensis/L. (V.) peruviana is endemic. A total of 2,997 female sand flies were captured by CDC light traps and Shannon traps, of which 2,931 and 66 flies were identified as Lutzomyia tejadai and Lu fischeri, respectively. Using crude DNA extracted from individual sand flies as a template, Leishmania DNA was detected from one Lu. tejadai. The parasite species was identified as a hybrid of L. (V.) braziliensis/L. (V.) peruviana on the basis of cytochrome b and mannose phosphate isomerase gene analyses. The result suggested that Lu. tejadai is responsible for the transmission of the hybrid Leishmania circulating in this area.
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Affiliation(s)
- Hirotomo Kato
- Laboratory of Parasitology, Department of Disease Control, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo, Japan
- * E-mail:
| | - Abraham G. Cáceres
- Sección de Entomología, Instituto de Medicina Tropical “Daniel A. Carrión” y Departamento Académico de Microbiología Médica, Facultad de Medicina Humana, Universidad Nacional Mayor de San Marcos, Lima, Peru
- Laboratorio de Entomología, Instituto Nacional de Salud, Lima, Peru
| | - Yoshihisa Hashiguchi
- Centro de Biomedicina, Facultad de Medicina, Universidad Central del Ecuador, Quito, Ecuador
- Prometeo, Secretaría Nacional de Educacion Superior, Ciencia, Tecnologia e Innovacion (SENESCYT), Quito, Ecuador
- Department of Parasitology, Kochi Medical School, Kochi University, Kochi, Japan
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Nzelu CO, Cáceres AG, Guerrero-Quincho S, Tineo-Villafuerte E, Rodriquez-Delfin L, Mimori T, Uezato H, Katakura K, Gomez EA, Guevara AG, Hashiguchi Y, Kato H. A rapid molecular diagnosis of cutaneous leishmaniasis by colorimetric malachite green-loop-mediated isothermal amplification (LAMP) combined with an FTA card as a direct sampling tool. Acta Trop 2016; 153:116-9. [PMID: 26516109 DOI: 10.1016/j.actatropica.2015.10.013] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2015] [Revised: 10/15/2015] [Accepted: 10/20/2015] [Indexed: 01/01/2023]
Abstract
Leishmaniasis remains one of the world's most neglected diseases, and early detection of the infectious agent, especially in developing countries, will require a simple and rapid test. In this study, we established a quick, one-step, single-tube, highly sensitive loop-mediated isothermal amplification (LAMP) assay for rapid detection of Leishmania DNA from tissue materials spotted on an FTA card. An FTA-LAMP with pre-added malachite green was performed at 64°C for 60min using a heating block and/or water bath and DNA amplification was detected immediately after incubation. The LAMP assay had high detection sensitivity down to a level of 0.01 parasites per μl. The field- and clinic-applicability of the colorimetric FTA-LAMP assay was demonstrated with 122 clinical samples collected from patients suspected of having cutaneous leishmaniasis in Peru, from which 71 positives were detected. The LAMP assay in combination with an FTA card described here is rapid and sensitive, as well as simple to perform, and has great potential usefulness for diagnosis and surveillance of leishmaniasis in endemic areas.
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Barroso PA, Nevot M, Hoyos CL, Locatelli FM, Lauthier JJ, Ruybal P, Cardozo RM, Russo PD, Vassiliades CN, Mora MC, Estévez J, Hashiguchi Y, Korenaga M, Basombrío MA, Marco JD. Genetic and clinical characterization of canine leishmaniasis caused by Leishmania (Leishmania) infantum in northeastern Argentina. Acta Trop 2015; 150:218-23. [PMID: 26277067 DOI: 10.1016/j.actatropica.2015.08.007] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2015] [Revised: 08/05/2015] [Accepted: 08/09/2015] [Indexed: 10/23/2022]
Abstract
Leishmaniases comprise zoonotic diseases caused by protozoan flagellates of the Leishmania genus. They are endemic to South America, and the visceral form has been recently reported in Argentina. Dogs can play different roles in the Leishmania transmission cycles, depending mainly on the species of parasite involved. Here we focused on the clinical characterization of canine leishmaniasis (CanL) in Northeast Argentina and on the molecular typing of its etiological agent. The nested polymerase chain reaction and sequence analysis of the Leishmania cytochrome b (cyt b) gene was performed on DNA templates purified from lymph nodes, bone marrow or spleen aspirates obtained from 48 dogs previously diagnosed by the observation of Leishmania amastigotes on smears from these aspirates. Their clinical and epidemiological data were also recorded. Systemic abnormalities were observed in 46 subjects (95.8%), most frequently lymphadenopathy, and emaciation (89.6 and 75%). Furthermore, 87% also presented tegumentary abnormalities, such as alopecia (54.2%) or secondary skin lesions (47.9%), among others. Twenty three dogs were positive for cyt b amplification. The sequence analysis showed the presence of two genotypes, LiA1 and LiA2, assigned to Leishmania (Leishmania) infantum, with 99.9 and 100% homology with the reference strain MHOM/TN/80/IPT1 respectively. LiA1 was identified in 18 cases (78.3%) and LiA2 in five (21.7%). Two cyt b variants of L. (L.) infantum were incriminated as the causative agents of CanL cases from three cities: Posadas, Garupá, and Ituzaingó. All three cities are located in the northeastern area of the country, where these parasites seem to be spreading in urban areas.
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Use of FTA technology for detection of Trichomonas gallinae. Vet Parasitol 2015; 212:396-9. [DOI: 10.1016/j.vetpar.2015.07.017] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2015] [Revised: 07/06/2015] [Accepted: 07/14/2015] [Indexed: 10/23/2022]
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de Vries HJC, Reedijk SH, Schallig HDFH. Cutaneous leishmaniasis: recent developments in diagnosis and management. Am J Clin Dermatol 2015; 16:99-109. [PMID: 25687688 PMCID: PMC4363483 DOI: 10.1007/s40257-015-0114-z] [Citation(s) in RCA: 240] [Impact Index Per Article: 26.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
This review focuses on recent developments in the diagnosis, treatment, management, and strategies for the prevention and control of cutaneous leishmaniasis (CL) caused by both Old and New World Leishmania species. CL is caused by the vector-borne protozoan parasite Leishmania and is transmitted via infected female sandflies. The disease is endemic in more than 98 countries and an estimated 350 million people are at risk. The overall prevalence is 12 million cases and the annual incidence is 2–2.5 million. The World Health Organization considers CL a severely neglected disease and a category 1 emerging and uncontrolled disease. The management of CL differs from region to region and is primarily based on local experience-based evidence. Most CL patients can be treated with topical treatments, but some Leishmania species can cause mucocutaneous involvement requiring a systemic therapeutic approach. Moreover, Leishmania species can vary in their sensitivity to available therapeutic options. This makes species determination critical for the choice of treatment and the clinical outcome of CL. Identification of the infecting parasite used to be laborious, but now the Leishmania species can be identified relatively easy with new DNA techniques that enable a more rational therapy choice. Current treatment guidelines for CL are based on poorly designed and reported trials. There is a lack of evidence for potentially beneficial treatments, a desperate need for large well-conducted studies, and standardization of future trials. Moreover, intensified research programs to improve vector control, diagnostics, and the therapeutic arsenal to contain further incidence and morbidity are needed.
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Affiliation(s)
- Henry J C de Vries
- Department of Dermatology, Academic Medical Center (AMC), University of Amsterdam, P.O. Box 22700, 1100 DE, Amsterdam, The Netherlands,
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Abstract
Leishmania is an infectious protozoan parasite related to African and American trypanosomes. All Leishmania species that are pathogenic to humans can cause dermal disease. When one is confronted with cutaneous leishmaniasis, identification of the causative species is relevant in both clinical and epidemiological studies, case management, and control. This review gives an overview of the currently existing and most used assays for species discrimination, with a critical appraisal of the limitations of each technique. The consensus taxonomy for the genus is outlined, including debatable species designations. Finally, a numerical literature analysis is presented that describes which methods are most used in various countries and regions in the world, and for which purposes.
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Affiliation(s)
- Gert Van der Auwera
- Institute of Tropical Medicine, Department of Biomedical Sciences, Antwerp, Belgium
| | - Jean-Claude Dujardin
- Institute of Tropical Medicine, Department of Biomedical Sciences, Antwerp, Belgium Antwerp University, Department of Biomedical Sciences, Antwerp, Belgium
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Locatelli FM, Cajal SP, Barroso PA, Lauthier JJ, Mora MC, Juarez M, Kato H, Nasser JR, Hashiguchi Y, Korenaga M, Marco JD. The isolation and molecular characterization of Leishmania spp. from patients with American tegumentary leishmaniasis in northwest Argentina. Acta Trop 2014; 131:16-21. [PMID: 24291551 DOI: 10.1016/j.actatropica.2013.11.015] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2013] [Revised: 11/17/2013] [Accepted: 11/19/2013] [Indexed: 11/26/2022]
Abstract
American tegumentary leishmaniasis (ATL) is a group of zoonotic diseases caused by kinetoplastid flagellates of the genus Leishmania. A total of 66 patients diagnosed as positive ATL cases from northwest Argentina were included in this study. Leishmania stocks were isolated in vitro and analyzed over promastigote cultures sown on FTA through nested PCR and sequence of cytochrome b (cyt b). The molecular analysis resulted in the incrimination of L. (Viannia) braziliensis as the predominant species in the studied area, identifying two genotypes of L. (V.) braziliensis, 24 cases of Ab-1 cyt b and 41 cases of Ab-2 cyt b. One L. (V.) guyanensis strain was obtained from a traveler from the Brazilian Amazon. The prevalence of different genotypes was in agreement with previous studies, suggesting the necessity for new systems to study the genetic diversity in more detail. Most of the cases typified in this study were registered in the area of Zenta Valley (Orán, Hipólito Yrigoyen, and Pichanal cities), pointing a link between genotype and geographical origin of the sample. Sex and age distribution of the patients indicate that the transmission was predominantly associated with rural areas or rural activities, although the results might not exclude the possibility of peri-urban transmission. This work represents, so far, the largest isolation and molecular characterization of ATL cases in Argentina.
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Kato H, Calvopiña M, Criollo H, Hashiguchi Y. First human cases of Leishmania (Viannia) naiffi infection in Ecuador and identification of its suspected vector species. Acta Trop 2013; 128:710-3. [PMID: 24044975 DOI: 10.1016/j.actatropica.2013.09.001] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2013] [Accepted: 09/02/2013] [Indexed: 10/26/2022]
Abstract
Epidemiological surveillance of leishmaniasis was conducted in a northern Amazonian region of Ecuador, in which cutaneous leishmaniasis cases were recently reported. Sand flies were captured in the military training camp, and the natural infection of sand flies by Leishmania species was examined. Out of 334 female sand flies dissected, the natural infection by flagellates was microscopically detected in 3.9% of Lutzomyia yuilli yuilli and 3.7% of Lutzomyia tortura, and the parasite species were identified as Endotrypanum and Leishmania (Viannia) naiffi, respectively. After the sand fly surveillance, specimens from cutaneous leishmaniasis (CL) patients considered to have acquired the infection in the training camp area were obtained, and the infected parasite species were identified as L. (V.) naiffi. The present study reported first cases of CL caused by L. (V.) naiffi infection in Ecuador. In addition, a high ratio of infection of Lu. tortura by L. (V.) naiffi in the same area strongly suggested that Lu. tortura is responsible for the transmission of L. (V.) naiffi in this area.
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Suzuki W, Osaka T, Sekizawa A, Kitagawa M, Honma I. Development of a fibrous DNA chip for cost-effective β-thalassemia genotyping. Int J Hematol 2012; 96:301-7. [PMID: 22847765 DOI: 10.1007/s12185-012-1153-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2012] [Revised: 07/17/2012] [Accepted: 07/18/2012] [Indexed: 10/28/2022]
Abstract
β-thalassemia is one of the most common genetic disorders worldwide. Concerted efforts are being made to prevent the disease, as the medical and economic burden of thalassemia represents a major public health problem. The molecular diagnosis of the β-globin mutations that cause the disease currently involves a combination of classic methodologies. A microarray-based assay for parallel one-shot detection of mutations has been developed, but the assay remains too expensive for routine application. We developed a cost-effective plastic fiber-based DNA chip for the fast and reliable detection of 25 types of β-thalassemia mutations. Assay conditions were established and genotyping was successfully performed on a genomic sample from a β-thalassemia patient. Our data show that this β-thalassemia genotyping chip is an advantageous platform for mass genotyping because of its low cost, rapid results, and reliability.
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Affiliation(s)
- Wakako Suzuki
- Department of Physiology, Showa University School of Medicine, Hatanodai 1-5-8, Shinagawa-ku, Tokyo 142-8555, Japan
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Valdivia HO, De Los Santos MB, Fernandez R, Baldeviano GC, Zorrilla VO, Vera H, Lucas CM, Edgel KA, Lescano AG, Mundal KD, Graf PCF. Natural Leishmania infection of Lutzomyia auraensis in Madre de Dios, Peru, detected by a fluorescence resonance energy transfer-based real-time polymerase chain reaction. Am J Trop Med Hyg 2012; 87:511-7. [PMID: 22802444 DOI: 10.4269/ajtmh.2012.11-0708] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
Leishmania species of the Viannia subgenus are responsible for most cases of New World tegumentary leishmaniasis. However, little is known about the vectors involved in disease transmission in the Amazon regions of Peru. We used a novel real-time polymerase chain reaction (PCR) to assess Leishmania infections in phlebotomines collected in rural areas of Madre de Dios, Peru. A total of 1,299 non-blood fed female sand flies from 33 species were captured by using miniature CDC light traps. Lutzomyia auraensis was the most abundant species (63%) in this area. Seven of 164 pools were positive by PCR for Leishmania by kinetoplast DNA. The real-time PCR identified four Lu. auraensis pools as positive for L. (Viannia) lainsoni and L. (V.) braziliensis. The minimum infection prevalence for Lu. auraensis was estimated to be 0.6% (95% confidence interval = 0.20-1.42%). Further studies are needed to assess the importance of Lu. auraensis in the transmission of New World tegumentary leishmaniasis in hyperendemic areas of Peru.
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Fujita M, Kato H, Cáceres AG, Gomez EA, Velez L, Mimori T, Zhang F, Iwata H, Korenaga M, Sakurai T, Katakura K, Hashiguchi Y. Genotyping of sand fly species in Peruvian Andes where leishmaniasis is endemic. Acta Trop 2012; 121:93-8. [PMID: 22015424 DOI: 10.1016/j.actatropica.2011.10.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2011] [Revised: 09/30/2011] [Accepted: 10/06/2011] [Indexed: 11/16/2022]
Abstract
Genotyping of sand fly species circulating in Peru was established on the basis of PCR-restriction fragment length polymorphisms (RFLPs) of the 18S ribosomal RNA (rRNA) gene. The sequences of 18S rRNA gene fragments from 12 Lutzomyia and 1 Warileya species were determined and their RFLP-patterns were analyzed. Consequently, RFLP analysis with the restriction enzyme AfaI and then HapII or KpnI, followed by XspI successfully differentiated them. Intraspecific genetic diversity affecting RFLP-patterns was not detected in the specimens collected from 24 areas of 8 departments. The genotyping was applied to the surveillance of sand flies collected from Andean areas where leishmaniasis is endemic, and its usability was verified. The present method promises to be a powerful tool for the classification and surveillance of sand flies circulating in Peru.
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Affiliation(s)
- Megumi Fujita
- Laboratory of Veterinary Hygiene, Faculty of Agriculture, Yamaguchi University, Japan
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Kato H, Watanabe J, Mendoza Nieto I, Korenaga M, Hashiguchi Y. Leishmania species identification using FTA card sampling directly from patients' cutaneous lesions in the state of Lara, Venezuela. Trans R Soc Trop Med Hyg 2011; 105:561-7. [PMID: 21907375 DOI: 10.1016/j.trstmh.2011.05.009] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2010] [Revised: 05/20/2011] [Accepted: 05/20/2011] [Indexed: 11/30/2022] Open
Abstract
A molecular epidemiological study was performed using FTA card materials directly sampled from lesions of patients with cutaneous leishmaniasis (CL) in the state of Lara, Venezuela, where causative agents have been identified as Leishmania (Viannia) braziliensis and L. (Leishmania) venezuelensis in previous studies. Of the 17 patients diagnosed with CL, Leishmania spp. were successfully identified in 16 patients based on analysis of the cytochrome b gene and rRNA internal transcribed spacer sequences. Consistent with previous findings, seven of the patients were infected with L. (V.) braziliensis. However, parasites from the other nine patients were genetically identified as L. (L.) mexicana, which differed from results of previous enzymatic and antigenic analyses. These results strongly suggest that L. (L.) venezuelensis is a variant of L. (L.) mexicana and that the classification of L. (L.) venezuelensis should be reconsidered.
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Affiliation(s)
- Hirotomo Kato
- Laboratory of Parasitology, Department of Disease Control, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo, Japan.
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Kato H, Gomez EA, Cáceres AG, Vargas F, Mimori T, Yamamoto K, Iwata H, Korenaga M, Velez L, Hashiguchi Y. Natural infections of man-biting sand flies by Leishmania and Trypanosoma species in the northern Peruvian Andes. Vector Borne Zoonotic Dis 2010; 11:515-21. [PMID: 20954867 DOI: 10.1089/vbz.2010.0138] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
The natural infection of sand flies by Leishmania species was studied in the Andean areas of Peru where cutaneous leishmaniasis caused by Leishmania (Viannia) peruviana is endemic. Sand flies were captured by human bait and Center for Disease Control (CDC) light trap catches at Nambuque and Padregual, Department of La Libertad, Peru, and morphologically identified. Among 377 female sand flies dissected, the two dominant man-biting species were Lutzomyia (Helcocyrtomyia) peruensis (211 flies) and Lutzomyia (Helcocyrtomyia) caballeroi (151 flies). Another sand fly species captured by light trap was Warileya phlebotomanica (15 flies). The natural infection of sand flies by flagellates was detected in 1.4% of Lu. (H.) peruensis and 2.6% of Lu. (H.) caballeroi, and the parasite species were identified as Le. (V.) peruviana and Trypanosoma avium, respectively, by molecular biological methods. The results indicated that the vector species responsible for the transmission of leishmaniasis in the study areas is Lu. (H.) peruensis. In addition, the presence of Trypanosoma in man-biting sand fly species means that more careful consideration is necessary for vector research in areas of Andean Peru where leishmaniasis is endemic.
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Affiliation(s)
- Hirotomo Kato
- Laboratory of Veterinary Hygiene, Faculty of Agriculture, Yamaguchi University, Yamaguchi, Japan.
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