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The microbiological signature of human cutaneous leishmaniasis lesions exhibits restricted bacterial diversity compared to healthy skin
Salgado, Vanessa R; Queiroz, Artur TL de; Sanabani, Sabri S; Oliveira, Camila I de; Carvalho, Edgar M; Costa, Jackson ML; Barral-Netto, Manoel; Barral, Aldina.
  • Salgado, Vanessa R; Fundação Oswaldo Cruz. Centro de Pesquisas Gonçalo Moniz. Salvador. BR
  • Queiroz, Artur TL de; Fundação Oswaldo Cruz. Centro de Pesquisas Gonçalo Moniz. Salvador. BR
  • Sanabani, Sabri S; Fundação Oswaldo Cruz. Centro de Pesquisas Gonçalo Moniz. Salvador. BR
  • Oliveira, Camila I de; Fundação Oswaldo Cruz. Centro de Pesquisas Gonçalo Moniz. Salvador. BR
  • Carvalho, Edgar M; Fundação Oswaldo Cruz. Centro de Pesquisas Gonçalo Moniz. Salvador. BR
  • Costa, Jackson ML; Fundação Oswaldo Cruz. Centro de Pesquisas Gonçalo Moniz. Salvador. BR
  • Barral-Netto, Manoel; Fundação Oswaldo Cruz. Centro de Pesquisas Gonçalo Moniz. Salvador. BR
  • Barral, Aldina; Fundação Oswaldo Cruz. Centro de Pesquisas Gonçalo Moniz. Salvador. BR
Mem. Inst. Oswaldo Cruz ; 111(4): 241-251, Apr. 2016. tab, graf
Article in English | LILACS | ID: lil-779002
ABSTRACT
Localised cutaneous leishmaniasis (LCL) is the most common form of cutaneous leishmaniasis characterised by single or multiple painless chronic ulcers, which commonly presents with secondary bacterial infection. Previous culture-based studies have found staphylococci, streptococci, and opportunistic pathogenic bacteria in LCL lesions, but there have been no comparisons to normal skin. In addition, this approach has strong bias for determining bacterial composition. The present study tested the hypothesis that bacterial communities in LCL lesions differ from those found on healthy skin (HS). Using a high throughput amplicon sequencing approach, which allows for better populational evaluation due to greater depth coverage and the Quantitative Insights Into Microbial Ecology pipeline, we compared the microbiological signature of LCL lesions with that of contralateral HS from the same individuals.Streptococcus, Staphylococcus,Fusobacterium and other strict or facultative anaerobic bacteria composed the LCL microbiome. Aerobic and facultative anaerobic bacteria found in HS, including environmental bacteria, were significantly decreased in LCL lesions (p < 0.01). This paper presents the first comprehensive microbiome identification from LCL lesions with next generation sequence methodology and shows a marked reduction of bacterial diversity in the lesions.
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Full text: Available Index: LILACS (Americas) Main subject: Skin / Leishmaniasis, Cutaneous / Gram-Negative Bacteria / Gram-Positive Bacteria Limits: Adult / Female / Humans / Male Language: English Journal: Mem. Inst. Oswaldo Cruz Journal subject: Tropical Medicine / Parasitology Year: 2016 Type: Article / Project document Affiliation country: Brazil Institution/Affiliation country: Fundação Oswaldo Cruz/BR

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Full text: Available Index: LILACS (Americas) Main subject: Skin / Leishmaniasis, Cutaneous / Gram-Negative Bacteria / Gram-Positive Bacteria Limits: Adult / Female / Humans / Male Language: English Journal: Mem. Inst. Oswaldo Cruz Journal subject: Tropical Medicine / Parasitology Year: 2016 Type: Article / Project document Affiliation country: Brazil Institution/Affiliation country: Fundação Oswaldo Cruz/BR