2026-06-14T03:40:47Zhttps://repisalud.isciii.es/rest/oai/requestoai:repisalud.isciii.es:20.500.12105/141592024-09-27T23:19:21Zcom_20.500.12105_2052com_20.500.12105_2051col_20.500.12105_19609
Repisalud
author
Ortega-García, María Victoria
author
Salguero, Francisco Javier
author
García, Nerea
author
Dominguez-Rodriguez, Mercedes
author
Moreno-Iruela, Inmaculada
author
Berrocal, Alexis
funder
Ayuntamiento de Madrid (España)
funder
Unión Europea. Fondo Europeo de Desarrollo Regional (FEDER/ERDF)
2022-04-22T15:31:45Z
2022-04-22T15:31:45Z
2021-08-02
Vet Med Sci. 2021; Aug. 1-6
10.1002/vms3.587
2053-1095
Veterinary Medicine and Science
34342158
http://hdl.handle.net/20.500.12105/14159
Background: Cutaneous forms of leishmaniosis due to Leishmania braziliensis have been reported in horses in the New World. Domestic animals play a role in the transmission of the disease. In Costa Rica, human cases of L. braziliensis, L. panamensis and L. infantum have been reported. Objectives: The present report describes five cases of equine cutaneous leishmaniosis in Costa Rica. The aetiological diagnosis was based on the presence of the parasite within the lesions. Methods: Skin biopsies were used to perform histopathological analyses of the lesions. Immunohistochemistry was used to detect the presence of the Leishmania spp. antigens in tissue sections. Laser-capture micro-dissection and quantitative real-time PCR techniques were carried out to detect the pathogen nucleic acid within the microscopic lesions. Results: Histopathological analyses showed a granulomatous inflammation within the dermis, with multi-nucleated giant cells, macrophages, lymphocytes and few neutrophils and eosinophils. We detected the parasite by immunohistochemistry, using a rabbit polyclonal antibody raised against Leishmania spp. However, we could not identify Leishmania spp. by quantitative real-time PCR in formalin-fixed paraffin-embedded tissues, using specific primers for the conserved region in the minicircle of the Leishmania DNA kinetoplast. Conclusions: Our results emphasise the importance of Leishmania spp. not only as a causative agent of equine cutaneous disease in the New World, but also as a possible emerging pathogen. Leishmaniosis is one of the most prevalent parasitic public health problems worldwide, and equines may have a role in the epidemiology of the disease.
eng
Leishmania spp
Cutaneous leishmaniosis
Histopathology
Horse
Immunohistochemistry
Leishmaniosis
Equine infection with Leishmania spp. in Costa Rica: Study of five cases
journal article
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EquineInfectionWithLeishmania_2021.pdf.txt