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Registros recuperados: 6
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Domestic feline cutaneous leishmaniasis in the municipality of Ribas do Rio Pardo, Mato Grosso do Sul state, Brazil: a case report J. Venom. Anim. Toxins incl. Trop. Dis.
Souza,AI; Nunes,VLB; Borralho,VM; Ishikawa,EAY.
Cutaneous leishmaniases are anthropozoonoses that involve many species of Leishmania and a wide variety of wild mammalian hosts, thus presenting high importance to public health. This study reports the second case of feline leishmaniasis in Mato Grosso do Sul state, in which Leishmania (Leishmania) amazonensis was found in a domestic cat from Ribas do Rio Pardo. Clinical signs were similar to those observed in other diseases commonly diagnosed in cats, such as cryptococcosis and sporotrichosis. Cutaneous leishmaniasis should, therefore, be added to differential diagnoses by feline veterinary practitioners, and also adequate investigations should be carried out to verify the relevance of domestic cats as L. amazonensis reservoirs.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Cutaneous leishmaniasis; Leishmania (Leishmania) amazonensis; Domestic cat; Mato Grosso do Sul state.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992009000200017
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Effect of phospholipase A2 inhibitors during infection caused by Leishmania (Leishmania) amazonensis J. Venom. Anim. Toxins incl. Trop. Dis.
Bordon,Maria L. A. C.; Laurenti,Márcia D.; Ribeiro,Susan Pereira; Toyama,Marcos H.; Toyama,Daniela de O.; Passero,Luiz Felipe D..
Abstract Background: Lipid metabolites play an important role in parasite differentiation and virulence. Studies have revealed that Leishmania sp. uses prostaglandins to evade innate barriers, thus enabling the parasites to survive inside immune cells. Despite the role of the enzyme Phospholipase A2 (PLA2) in prostaglandins production, few studies have investigated the role of parasite PLA2 during the interaction between L. (L.) amazonensis and the host (in vitro and in vivo) immune cells. Methods: In the present work, the leishmanicidal effect of PLA2 inhibitors, methyl arachidonyl fluorophosphonate (MAFP), bromoenol lactone (BEL) and aristolochic acid (AA) were investigated in vitro (promastigote and intracellular amastigote forms of L. (L.)...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Leishmania (Leishmania) amazonensis; Macrophages; BALB/c mice; Phospholipase A2; Phospholipase A2inhibitors.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992018000100312
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Natural infection of phlebotomines (Diptera: Psychodidae) by Leishmania (Leishmania) amazonensis in an area of ecotourism in Central-Western Brazil J. Venom. Anim. Toxins incl. Trop. Dis.
Brilhante,Andreia Fernandes; Nunes,Vânia Lúcia Brandão; Kohatsu,Kleber Augusto; Galati,Eunice Aparecida Bianchi; Rocca,Maria Elizabeth Ghizzi; Ishikawa,Edna Aoba Yassui.
AbstractBackground Bonito municipality, known as an area of ecoturism, in Mato Grosso do Sul state, Brazil, is also a focus of visceral and cutaneous leishmaniases, with cases registered in both human and canine populations. This study sought to investigate natural infection by flagellate forms of Leishmania in phlebotomines of the urban area of Bonito.Findings Sand flies were collected fortnightly from October 2005 to July 2006 with modified automatic light traps installed in peridomiciles and animal shelters in the center and on the outskirts of the city. The females were dissected and their guts observed under an optical microscope. A total of 1977 specimens were captured, Lutzomyia longipalpis (88.4 %) and Bichromomyia flaviscutelata (3.0 %) being the...
Tipo: Info:eu-repo/semantics/report Palavras-chave: Bichromomyia flaviscutellata; Lutzomyia longipalpis; Natural infection; Leishmania (Leishmania) amazonensis.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992015000100502
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Role of Leishmania (Leishmania) amazonensis amastigote glycosphingolipids in macrophage infectivity BJMBR
Tanaka,A.K.; Gorin,P.A.J.; Takahashi,H.K.; Straus,A.H..
The role of glycosphingolipids (GSLs) present in amastigote forms of Leishmania (Leishmania) amazonensis during infection of macrophages was analyzed, with particular emphasis on GSLs presenting the terminal Galpß1-3Galpa disaccharide. Macrophage invasion by L. (L.) amazonensis amastigotes was reduced by 37% when the disaccharide Galpß1-3Galp (1 mM) was added to the culture medium. The putative macrophage receptor/lectin for ß-Gal-globotriaosylceramide (Galpß1-3Galpa1-4Galpß1-4Glc pß1-1Cer) and other structurally related GSLs from L. (L.) amazonensis amastigotes were analyzed by micelles and parasite binding assay to peritoneal macrophage proteins fractionated by SDS-PAGE under nonreducing conditions. Micelles containing purified amastigote GSLs or a...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Leishmania (Leishmania) amazonensis; Amastigote; Glycosphingolipid; Macrophage binding protein.
Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2007000600008
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The role of complement in the early phase of Leishmania (Leishmania) amazonensis infection in BALB/c mice BJMBR
Laurenti,M.D.; Örn,A.; Sinhorini,I.L.; Corbett,C.E.P..
Complement-depleted and -non-depleted BALB/c mice were inoculated with Leishmania (Leishmania) amazonensis promastigotes into the hind footpad to study the role of the complement system in cutaneous leishmaniasis. Total serum complement activity was measured by hemolytic assay and C3 fragment deposit at the inoculation site was determined by direct immunofluorescence in the early period of infection, i.e., at 3, 24, 48 h and 7 days post-infection. The inflammatory reaction and the parasite burden were evaluated in the skin lesion at 7 and 30 days post-infection. Total serum complement activity decreased in the early phase of infection, from 3 to 24 h, in non-depleted mice compared to non-infected and non-depleted mice. C3 fragment deposit at the site of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Cutaneous leishmaniasis; Leishmania (Leishmania) amazonensis; Complement; Pathology.
Ano: 2004 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2004000300021
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The role of natural killer cells in the early period of infection in murine cutaneous leishmaniasis BJMBR
Laurenti,M.D.; Gidlund,M.; Ura,D.M.; Sinhorini,I.L.; Corbett,C.E.P.; Goto,H..
In order to study the role of natural killer (NK) cells during the early period of Leishmania infection, BALB/c mice were selectively and permanently depleted of NK cells by injection with 90Sr and subsequently infected with Leishmania (Leishmania) amazonensis (HSJD-1 strain). 90Sr is known to selectively deplete NK cells, leaving an intact T- and B-cell compartment and preserving the ability to produce both interferon alpha and IL-2. This method of depletion has advantages when compared with depletion using anti-NK cell monoclonal antibodies because the effect is permanent and neither activates complement nor provokes massive cell death. In the present study, after one month of treatment with 90Sr, the depletion of NK cells was shown by a more than...
Tipo: Info:eu-repo/semantics/other Palavras-chave: Cutaneous leishmaniasis; NK cells; Strontium 90; Leishmania (Leishmania) amazonensis.
Ano: 1999 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1999000300012
Registros recuperados: 6
Primeira ... 1 ... Última
 

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