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  • Title: Leishmania (Viannia) braziliensis genotypes identified in lesions of patients with atypical or typical manifestations of tegumentary leishmaniasis: evaluation by two molecular markers.
    Author: Baptista C, Schubach AO, Madeira MF, Leal CA, Pires MQ, Oliveira FS, Conceição-Silva F, Rosalino CM, Salgueiro MM, Pacheco RS.
    Journal: Exp Parasitol; 2009 Apr; 121(4):317-22. PubMed ID: 19135053.
    Abstract:
    Analyses of MLEE, RAPD and LSSP-PCR were used to compare the panel of american tegumentary leishmaniasis (ATL) isolates obtained from lesions of patients with rare clinical manifestations of the disease and typical lesions. All of the 34 samples analyzed by MLEE demonstrated similar electromorphic profiles with Leishmania (Viannia) braziliensis reference strain. Through the RAPD analysis, nine genetic profiles (genotypes) were identified. LSSP-PCR corroborates the initial screening and phenetic analysis has grouped the isolates into two major clusters comprising the nine different genotypes. Prevalent genotype defined as LbmtDNAgen1 was detected in the largest number of isolates. There was no association between genotypes and clinical symptoms. However, two different genotypes could be identified in the initial (LbmtDNAGen9) and reactivated lesion (LbmtDNAGen3) of the same patient. Our results support the idea of a less pronounced genotypic diversity among L. (V.) braziliensis circulating in the State of Rio de Janeiro and demonstrate the useful application of these molecular markers in genetics variability studies.
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