A comparison of molecular markers to detect Lutzomyia longipalpis naturally infected with Leishmania (Leishmania) infantum

The aim of the present study was to detect natural infection by Leishmania (Leishmania) infantum in Lutzomyia longipalpis captured in Barcarena, state of Pará, Brazil, through the use of three primer sets. With this approach, it is unnecessary to previously dissect the sandfly specimens. DNA of 280...

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Main Authors: Kárita Cláudia Freitas-Lidani, Iara J de Messias-Reason, Edna Aoba Y Ishikawa
Format: Article
Language:English
Published: Fundação Oswaldo Cruz (FIOCRUZ) 2014-07-01
Series:Memorias do Instituto Oswaldo Cruz
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02762014000400442&lng=en&tlng=en
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author Kárita Cláudia Freitas-Lidani
Iara J de Messias-Reason
Edna Aoba Y Ishikawa
author_facet Kárita Cláudia Freitas-Lidani
Iara J de Messias-Reason
Edna Aoba Y Ishikawa
author_sort Kárita Cláudia Freitas-Lidani
collection DOAJ
description The aim of the present study was to detect natural infection by Leishmania (Leishmania) infantum in Lutzomyia longipalpis captured in Barcarena, state of Pará, Brazil, through the use of three primer sets. With this approach, it is unnecessary to previously dissect the sandfly specimens. DNA of 280 Lu. longipalpis female specimens were extracted from the whole insects. PCR primers for kinetoplast minicircle DNA (kDNA), the mini-exon gene and the small subunit ribosomal RNA (SSU-rRNA) gene of Leishmania were used, generating fragments of 400 bp, 780 bp and 603 bp, respectively. Infection by the parasite was found with the kDNA primer in 8.6% of the cases, with the mini-exon gene primer in 7.1% of the cases and with the SSU-rRNA gene primer in 5.3% of the cases. These data show the importance of polymerase chain reaction as a tool for investigating the molecular epidemiology of visceral leishmaniasis by estimating the risk of disease transmission in endemic areas, with the kDNA primer representing the most reliable marker for the parasite.
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spelling doaj.art-01aaabb2e2104919a3a9e1ac433925ee2023-08-02T08:19:12ZengFundação Oswaldo Cruz (FIOCRUZ)Memorias do Instituto Oswaldo Cruz1678-80602014-07-01109444244710.1590/0074-0276130285S0074-02762014000400442A comparison of molecular markers to detect Lutzomyia longipalpis naturally infected with Leishmania (Leishmania) infantumKárita Cláudia Freitas-LidaniIara J de Messias-ReasonEdna Aoba Y IshikawaThe aim of the present study was to detect natural infection by Leishmania (Leishmania) infantum in Lutzomyia longipalpis captured in Barcarena, state of Pará, Brazil, through the use of three primer sets. With this approach, it is unnecessary to previously dissect the sandfly specimens. DNA of 280 Lu. longipalpis female specimens were extracted from the whole insects. PCR primers for kinetoplast minicircle DNA (kDNA), the mini-exon gene and the small subunit ribosomal RNA (SSU-rRNA) gene of Leishmania were used, generating fragments of 400 bp, 780 bp and 603 bp, respectively. Infection by the parasite was found with the kDNA primer in 8.6% of the cases, with the mini-exon gene primer in 7.1% of the cases and with the SSU-rRNA gene primer in 5.3% of the cases. These data show the importance of polymerase chain reaction as a tool for investigating the molecular epidemiology of visceral leishmaniasis by estimating the risk of disease transmission in endemic areas, with the kDNA primer representing the most reliable marker for the parasite.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02762014000400442&lng=en&tlng=envisceral leishmaniasisLeishmania (Leishmania) infantumLutzomyia longipalpis
spellingShingle Kárita Cláudia Freitas-Lidani
Iara J de Messias-Reason
Edna Aoba Y Ishikawa
A comparison of molecular markers to detect Lutzomyia longipalpis naturally infected with Leishmania (Leishmania) infantum
Memorias do Instituto Oswaldo Cruz
visceral leishmaniasis
Leishmania (Leishmania) infantum
Lutzomyia longipalpis
title A comparison of molecular markers to detect Lutzomyia longipalpis naturally infected with Leishmania (Leishmania) infantum
title_full A comparison of molecular markers to detect Lutzomyia longipalpis naturally infected with Leishmania (Leishmania) infantum
title_fullStr A comparison of molecular markers to detect Lutzomyia longipalpis naturally infected with Leishmania (Leishmania) infantum
title_full_unstemmed A comparison of molecular markers to detect Lutzomyia longipalpis naturally infected with Leishmania (Leishmania) infantum
title_short A comparison of molecular markers to detect Lutzomyia longipalpis naturally infected with Leishmania (Leishmania) infantum
title_sort comparison of molecular markers to detect lutzomyia longipalpis naturally infected with leishmania leishmania infantum
topic visceral leishmaniasis
Leishmania (Leishmania) infantum
Lutzomyia longipalpis
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02762014000400442&lng=en&tlng=en
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