6 documents found, page 1 of 1
Trypanosoma cruzi discrete typing unit TcIV implicated in a case of acute Chaga...
Vasconcelos,Luciene Almeida Siqueira de; Oliveira,Josué Costa; Silva Junior,Rubens Celso Andrade da; Justiniano,Silvia Cássia BrandãoAbstract Chagas disease is caused by the protozoan Trypanosoma cruzi. Seven lineages have been identified based on different molecular markers, namely TcI, TcII, TcIII, TcIV, TcV, TcVI, and TcBat. Dogs play the role of epidemiological sentinels being domestic reservoirs of T. cruzi. The aim of the current study was to report the first case of CD in a domestic dog in Manaus, Amazonas, Brazil, infected with T. cr...
Polymerase chain reaction-based method for the identification of Leishmania (Vi...
Prestes,Suzane Ribeiro; Guerra,Jorge Augusto de Oliveira; Romero,Gustavo Adolfo Sierra; Magalhaes,Laylah Kelre Costa; Santana,Rosa Amelia GonçalvesABSTRACTINTRODUCTION: In the Americas, mucosal leishmaniasis is primarily associated with infection by Leishmania (Viannia) braziliensis. However, Leishmania (Viannia) guyanensis is another important cause of this disease in the Brazilian Amazon. In this study, we aimed at detecting Leishmaniadeoxyribonucleic acid (DNA) within paraffin-embedded fragments of mucosal tissues, and characterizing the infecting para...
Chagas disease in the State of Amazonas: history, epidemiological evolution, ri...
Barbosa,Maria das Graças Vale; Ferreira,João Marcos Bemfica Barbosa; Arcanjo,Ana Ruth Lima; Santana,Rosa Amélia Gonçalves; Magalhães,Laylah Kelre CostaChagas disease (CD) is a parasitic infection that originated in the Americas and is caused by Trypanosoma cruzi. In the last few years, the disease has spread to countries in North America, Asia and Europe due to the migration of Latin Americans. In the Brazilian Amazon, CD has an endemic transmission, especially in the Rio Negro region, where an occupational hazard was described for piaçaveiros (piassaba gathe...
Biological behavior of Trypanosoma cruzi stocks obtained from the state of Amaz...
Monteiro,Wuelton Marcelo; Magalhães,Laylah Kelre Costa; Oliveira,Josué Costa; Guerra,Jorge Augusto de Oliveira; Silveira,HenriqueINTRODUCTION: The biological diversity of circulating Trypanosoma cruzi stocks in the Amazon region most likely plays an important role in the peculiar clinic-epidemiological features of Chagas disease in this area. METHODS: Seven stocks of T. cruzi were recently isolated in the State of Amazonas, Brazil, from humans, wild mammals, and triatomines. They belonged to the TcI and Z3 genotypes and were biologically...
Plasmodium falciparum infection in pregnant women attending antenatal care in L...
Campos,Paulo Adão; Valente,Bianor; Campos,Rosa Bessa; Gonçalves,Luzia; Rosário,Virgílio Estóliodo; Varandas,Luís; Silveira,HenriqueINTRODUCTION: Malaria during pregnancy remains a serious public health problem. The aim of this study was to establish the prevalence and possible risk factors for malaria in pregnant women attending antenatal care at Augusto Ngangula Specialized General Hospital in Luanda, Angola. METHODS: Pregnant women (679 total) who attended antenatal care from April to September 2008 were included in the study after signi...
Alterações climáticas na Europa: efeito nas doenças parasitárias humanas
Abrantes,Patrícia; Silveira,HenriqueO clima da Terra não é constante e a sua variação natural obedece a ciclos relativamente bem definidos. O aumento anormal da temperatura que tem sido observado recentemente tem excedido largamente as variações climáticas naturais dos últimos 1000 anos. Segundo os estudos mais recentes, a origem do aquecimento global tem estado associada ao aumento da emissão de gases com efeito de estufa resultantes da activida...