Abstract：
BACKGROUND:Certain municipalities in the Belo Horizonte Metropolitan Area (BHMA), Minas Gerais, Brazil, have the highest human visceral leishmaniasis (VL) mortality rates in the country and also demonstrate high canine seropositivity. In Brazil, the etiologic agent of VL is Leishmania (Leishmania) infantum. The aim of this study was to evaluate the intraspecific genetic variability of parasites from humans and from dogs with different clinical forms of VL in five municipalities of BHMA using PCR-RFLP and two target genes: kinetoplast DNA (kDNA) and gp63. METHODS:In total, 45 samples of DNA extracted from clinical samples (n = 35) or L. infantum culture (n = 10) were evaluated. These samples originated from three groups: adults (with or without Leishmania/HIV co-infection; n = 14), children (n = 18) and dogs (n = 13). The samples were amplified for the kDNA target using the MC1 and MC2 primers (447 bp), while the Sg1 and Sg2 (1330 bp) primers were used for the gp63 glycoprotein target gene. RESULTS:The restriction enzyme patterns of all the samples tested were monomorphic. CONCLUSIONS:These findings reveal a high degree of genetic homogeneity for the evaluated gene targets among L. infantum samples isolated from different hosts and representing different clinical forms of VL in the municipalities of BHMA studied.
journal_name
Parasit Vectorsjournal_title
Parasites & vectorsauthors
da Silva TA,Gomes LI,Oliveira E,Coura-Vital W,Silva Lde A,Pais FS,Ker HG,Reis AB,Rabello A,Carneiro Mdoi
10.1186/s13071-015-0837-ysubject
Has Abstractpub_date
2015-04-15 00:00:00pages
226issn
1756-3305pii
10.1186/s13071-015-0837-yjournal_volume
8pub_type
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