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Naphthoquinones isolated from Eleutherine plicata herb: in vitro antimalarial activity and molecular modeling to investigate their binding modes
(Springer Verlag, 2020)Plasmodium falciparum is the cause of malaria and has become resistant to the drugs used to treat the disease. Therefore, the development for novel compounds with antimalarial activity has become urgent. Plant species, ... -
Natural antibody responses against the non-repeat-sequence-based B-cell epitopes of the Plasmodium falciparum circumsporozoite protein.
(American Society for Microbiology, 1993)Synthetic peptides and human serum or plasma samples from regions of Brazil, Papua New Guinea, and Kenya in which malaria is endemic were used to identify B-cell epitopes localized outside the repeat region of the ... -
Natural Leishmania (Viannia) infections of phlebotomines (Diptera: Psychodidae) indicate classical and alternative transmission cycles of American cutaneous leishmaniasis in the Guiana Shield, Brazil
(EDP Open, 2017)From 1996 to 1999 multi-trapping methods (Center of Diseases Control, CDC) light traps, light-baited Shannon traps, and aspiration on tree bases) were used to study the phlebotomine fauna of the “Serra do Navio” region of ... -
Natural Leishmania (Viannia) spp. infections in phlebotomine sand flies (Diptera : Psychodidae) from the Brazilian Amazon region reveal new putative transmission cycles of American cutaneous leishmaniasis
(EDP Sciences, 2016)In Amazonian Brazil the etiological agents of American cutaneous leishmaniasis (ACL) belong to at least seven Leishmania species but little is known about the putative phlebotomine sand fly vectors in different biomes. In ... -
Natural Plasmodium infections in Brazilian wild monkeys: reservoirs for human infections?
(Elsevier, 2008)Four hundred and forty-eight samples of total blood from wild monkeys living in areas where human autochthonous malaria cases have been reported were screened for the presence of Plasmodium using microscopy and PCR ... -
Neotropical echinococcosis: second report of Echinococcus vogeli natural infection in its main definitive host, the bush dog (Speothos venaticus)
(Elsevier, 2014)The bush dog (Speothos venaticus) acts as the natural definitive host in the life cycle of Echinococcus vogeli, the causative agent of polycystic hydatid disease, a zoonotic neglected disease in the South America. We report ... -
Nested PCR using thick blood smears as source of Plasmodium DNA: an alternative to study archival blood films
(Instituto Evandro Chagas, 2016)The study aimed to evaluate a protocol of nested PCR using archival Giemsa-stained thick blood smears (GTS)as source of Plasmodium DNA. A total of 138 GTS from patients of five municipalities from Pará State (Amazon ... -
A new haemosporidian of lizards, Saurocytozoon tupinambi gen.nov., sp.nov., in Tupinambus nigropunctatus (Teiidae)
(Cambridge University Press, 1969)Saurocytozoon tupinambi gen.nov., sp.nov. (Haemosporidiidea, Leucocytozoidae) is described in the teiid lizard, Tupinambus nigropunctatus, from Pará State, Brazil. This would appear to be the first record of a member of ... -
New host records for Plasmodium diploglossi, P. tropiduri Aragão and Neiva, 1909, and P. cnemidophori Carini, 1941
(Cambridge University Press, 1969)Plasmodium (Sauramoeba) diploglossi Aragão & Neiva, 1909, has been rediscovered in the skink Mabuya mabouya (Scincidae). This appears to be the first time that this malaria parasite has been re-encountered since its ... -
New phlebotomine sandflies of the walkeri group (Diptera: Psychodidae) from Pará state, Brazil, with a pictorial key 1
(Instituto Oswaldo Cruz, 1986)The male and female of Lutzomyia carmelinoi n.sp., and the female only of L. baculus and L. williamsi (Diptera:Psychodidae) are described and illustrated from specimens collected in Pará state, Brazil. A pictorial key is ... -
A new polymerase chain reaction/restriction fragment length polymorphism protocol for Plasmodium vivax circumsporozoite protein genotype (VK210, VK247, and P. vivax-like) determination
(Elsevier, 2007)For the molecular diagnosis of Plasmodium vivax variants (VK210, VK247, and P. vivax-like) using DNA amplification procedures in the laboratory, the choice of rapid and inexpensive identification products of the 3 different ... -
New record of preclinical diagnosis of American visceral leishmaniasis in Amazonian Brazil encourages optimizing disease control
(Elsevier, 2020)The clinical-immunological spectrum of human Leishmania (L.) infantum chagasi-infection in Amazonian Brazil has recently been reviewed based on the combined use of the delayed-type hypersensitivity (DTH) and indirect ... -
A new species of Psychodopygus Mangabeira (Diptera, Phebotomidae) from the Transamazônica higway, Pará State, Brazil
(Cambridge University Press, 1974)A new species of sandfly, Psychodopygus lainsoni, is described from specimens captured in ' terra firme' rain forest at km 46 Altamira-Itaituba on the Transamazônica highway. In many respects the male resembles those of ... -
Nota sobre a infeccao de Lutzomyia evandroi (Diptera: Psychodidae) por Ascocystis chagasi (Adler & Mayrink, 1961) no Estado do Maranhão
(Instituto Oswaldo Cruz, 1984)Encontramos a gregarina Ascocystis chagasi bem como um nematodeo e um tripanosoma nao identificados, em Lutzomyia evandroi da ilha de Sao Luis, Maranhão. -
Nota sobre Leishmaniose canina no noroeste do Estado do Paraná, sul do Brasil
(Universidade de São Paulo, 1993)Em área endêmica de leishmaniose tegumentar americana no Município de Jussara, Estado do Paraná, Brasil, detectaram-se três cães domésticos infectados por Leishmania (Viannia) brasiliensis -
Notas sobre a transmissão da leishmaniose visceral americana
(Livraria Freitas Bastos, 1938) -
A note on Sporozoa of undetermined taxonomic position in an Armadillo and a Heifer Calf
(Wiley, 1972)A sporozoan parasite of undetermined taxonomic position is described in the nine-banded armadillo, Dasypus novemcinctus, from British Honduras, Central America. Schizonts, giving rise to approximately 60 merozoites, are ... -
Novas evidências sobre o valor diagnóstico da reação de imunofluorescência indireta e reação intradérmica de hipersensibilidade tardia na infecção humana por Leishmania (L) infantum chagasi na Amazônia, Brasil
(Instituto Evandro Chagas, 2010)Estudo prospectivo realizado no período de maio/2006-setembro/2008, numa coorte de 1.099 indivíduos, ambos os sexos, com idades de 1 a 84 anos (média 24,4 anos), residente em área endêmica de leishmaniose visceral americana ... -
Novas observações sobre o foco de oncocercose da área do Rio Toototobi, Estado do Amazonas, Brasil
(Fundação Serviços de Saúde Pública, 1977)Após quase três anos, novo inquérito para oncocercose foi levado a cabo nas aldeias Yanomamas da área do rio Toototobi, Estado do Amazonas. No primeiro, feito em julho de 1973, os autores, utilizando uma única biopsia de ... -
Novas observações sobre o foco de oncocercose do Rio Auaris, Território de Roraima
(Fundação Serviços de Saúde Pública, 1977)