Results 11 to 20 of about 178 (86)

Leishmaniose cutânea na Amazônia: isolamento de Leishmania (Viannia) lainsoni do roedor Agouti paca (Rodentia: Dasyproctidae), no estado do Pará, Brasil [PDF]

Revista Do Instituto De Medicina Tropical De Sao Paulo, 1991
Fez-se o registro, pela primeira vez, do isolamento de Leishmania (V.) lainsoni de um mamífero silvestre, o roedor Agouti paca (Rodentia: Dasyproctidae), no Estado do Pará, Brasil. As amostras do parasita foram isoladas da pele, aparentemente íntegra, de 3 espécimes desse roedor, capturados no município de Tucuruí (ilha de Tocantins), em área que seria
Fernando Tobias Silveira, Ralph Lainson, Jeffrey J Shaw   +2 more
exaly   +4 more sources

Experimental Susceptibility of Nyssomyia antunesi and Lutzomyia longipalpis (Psychodidae: Phlebotominae) to Leishmania (Viannia) lainsoni and L. (V.) lindenbergi (Trypanosomatidae: Leishmaniinae)

Microorganisms
The present work assessed the experimental susceptibility of Nyssomyia antunesi and Lutzomyia longipalpis to Leishmania (Viannia) lainsoni and L. (V.) lindenbergi. A L. (Leishmania) chagasi–Lu.
Yetsenia del Valle Sánchez Uzcátegui, Fernando Tobias Silveira, Thais Gouvea de Morais, Rodrigo Ribeiro Furtado, Thiago Vasconcelos dos Santos, Marinete Marins Póvoa   +5 more
doaj   +4 more sources

Leishmaniose cutânea experimental. III- Aspectos histopatológicos do comportamento evolutivo da lesão cutânea produzida em Cebus apella (Primates: Cebidae) por Leishmania (Viannia) lainsoni, L. (V.) braziliensis e L. (Leishmania) amazonensis [PDF]

Revista Do Instituto De Medicina Tropical De Sao Paulo, 1990
Estudaram-se os aspectos histopatológicos relativos à evolução da infecção experimental produzida em Cebus apella (Primates: Cebidae) por Leishmania (V.) lainsoni, L. (V.) braziliensis e L. (L.) amazonensis. O exame microscópico de biópsias seqüênciais, obtidas dos animais a intervalos definidos de tempo (a primeira, às 48 ou 72 horas após a inoculação,
Fernando Tobias Silveira, Jeffrey J Shaw, R Lainson   +2 more
exaly   +6 more sources

Antigenic reactivity of Leishmania (Viannia) lainsoni axenic amastigote proved to be a suitable alternative for optimizing Montenegro skin test

Parasites & Vectors
Background Laboratory diagnosis of American cutaneous leishmaniasis (ACL) requires a tool amenable to the epidemiological status of ACL in Brazil. Montenegro skin test (MST), an efficient immunological tool used for laboratory diagnosis of ACL, induces ...
Leonardo Viana de Melo, Thiago Vasconcelos dos Santos, Patrícia Karla Ramos, Luciana Vieira Lima, Marliane Batista Campos, Fernando Tobias Silveira   +5 more
doaj   +4 more sources

Population structure and evidence for both clonality and recombination among Brazilian strains of the subgenus Leishmania (Viannia). [PDF]

PLoS Neglected Tropical Diseases, 2013
Parasites of the subgenus Leishmania (Viannia) cause varying clinical symptoms ranging from cutaneous leishmaniases (CL) with single or few lesions, disseminated CL (DL) with multiple lesions to disfiguring forms of mucocutaneous leishmaniasis (MCL).
Katrin Kuhls, Elisa Cupolillo, Soraia O Silva, Carola Schweynoch, Mariana Côrtes Boité, Maria N Mello, Isabel Mauricio, Michael Miles, Thierry Wirth, Gabriele Schönian   +9 more
doaj   +3 more sources

Leishmania naiffi and Leishmania guyanensis reference genomes highlight genome structure and gene evolution in the Viannia subgenus [PDF]

Royal Society Open Science, 2018
The unicellular protozoan parasite Leishmania causes the neglected tropical disease leishmaniasis, affecting 12 million people in 98 countries. In South America, where the Viannia subgenus predominates, so far only L. (Viannia) braziliensis and L.
Simone Coughlan, Ali Shirley Taylor, Eoghan Feane, Mandy Sanders, Gabriele Schonian, James A. Cotton, Tim Downing   +6 more
doaj   +3 more sources

An Innovative Field-Applicable Molecular Test to Diagnose Cutaneous Leishmania Viannia spp. Infections. [PDF]

PLoS Neglected Tropical Diseases, 2016
Cutaneous and mucosal leishmaniasis is widely distributed in Central and South America. Leishmania of the Viannia subgenus are the most frequent species infecting humans. L. (V.) braziliensis, L.
Omar A Saldarriaga, Alejandro Castellanos-Gonzalez, Renato Porrozzi, Gerald C Baldeviano, Andrés G Lescano, Maxy B de Los Santos, Olga L Fernandez, Nancy G Saravia, Erika Costa, Peter C Melby, Bruno L Travi   +10 more
doaj   +2 more sources

New insights on taxonomy, phylogeny and population genetics of Leishmania (Viannia) parasites based on multilocus sequence analysis. [PDF]

PLoS Neglected Tropical Diseases, 2012
The Leishmania genus comprises up to 35 species, some with status still under discussion. The multilocus sequence typing (MLST)--extensively used for bacteria--has been proposed for pathogenic trypanosomatids. For Leishmania, however, a detailed analysis
Mariana C Boité, Isabel L Mauricio, Michael A Miles, Elisa Cupolillo   +3 more
doaj   +4 more sources

Geographic Distribution of Leishmania Species in Ecuador Based on the Cytochrome B Gene Sequence Analysis.

PLoS Neglected Tropical Diseases, 2016
A countrywide epidemiological study was performed to elucidate the current geographic distribution of causative species of cutaneous leishmaniasis (CL) in Ecuador by using FTA card-spotted samples and smear slides as DNA sources.
Hirotomo Kato, Eduardo A Gomez, Luiggi Martini-Robles, Jenny Muzzio, Lenin Velez, Manuel Calvopiña, Manuel Calvopiña, Daniel Romero-Alvarez, Tatsuyuki Mimori, Hiroshi Uezato, Yoshihisa Hashiguchi   +10 more
doaj   +2 more sources

Further insights into the eco-epidemiology of American cutaneous leishmaniasis in the Belem metropolitan region, Pará State, Brazil

Revista da Sociedade Brasileira de Medicina Tropical, 2020
INTRODUCTION: In the Belém Metropolitan Region (BMR), Pará State, Brazil, American cutaneous leishmaniasis (ACL) is endemic; however, very little is known regarding its causative agents.
Lucas Pantoja Gonçalves, Thiago Vasconcelos dos Santos, Marliane Batista Campos, Luciana Vieira do Rêgo Lima, Edna Aoba Yassui Ishikawa, Fernando Tobias Silveira, Patrícia Karla Santos Ramos   +6 more
doaj   +2 more sources