Results: 17

Plasmodium falciparum malarial parasites from Brazil lack artemisinin resistance-associated mutations in the kelch13 gene

Abstract INTRODUCTION Mutations in the propeller domain of the Plasmodium falciparum kelch13 (k13) gene are associated with artemisinin resistance. METHODS: We developed a PCR protocol to sequence the pfk13 gene and determined its sequence in a batch of 50 samples collected from 2003 to 2016 in Brazi...

Antiprotozoal action of synthetic cinnamic acid analogs

Abstract INTRODUCTION Leishmaniasis, Chagas disease, and malaria cause morbidity globally. The drugs currently used for treatment have limitations. Activity of cinnamic acid analogs against Leishmania spp., Trypanosoma cruzi, and Plasmodium falciparum was evaluated in the interest of identifying new an...

Antiplasmodial and antileishmanial activities of compounds from Piper tuberculatum Jacq fruits

Abstract INTRODUCTION This study assessed the activity of compounds from Piper tuberculatum against Plasmodium falciparum and Leishmania guyanensis. METHODS The effects of compounds from P. tuberculatum fruits on P. falciparum and L. guyanensis promastigote growth in vitro were determined. Hemolytic ...

Plasmodium falciparum parasites overexpressing farnesyl diphosphate synthase/geranylgeranyl diphosphate synthase are more resistant to risedronate

Mem. Inst. Oswaldo Cruz; 113 (10), 2018
Farnesyl diphosphate synthase/geranylgeranyl diphosphate synthase (FPPS/GGPPS) is a key enzyme in the synthesis of isoprenic chains. Risedronate, a bisphosphonate containing nitrogen (N-BP), is a potent inhibitor of blood stage Plasmodium. Here, we show that P. falciparum parasites overexpressing FPPS/GG...

Insights into cytochrome bc1 complex binding mode of antimalarial 2-hydroxy-1, 4-naphthoquinones through molecular modelling

Mem. Inst. Oswaldo Cruz; 112 (4), 2017
BACKGROUND Malaria persists as a major public health problem. Atovaquone is a drug that inhibits the respiratory chain of Plasmodium falciparum, but with serious limitations like known resistance, low bioavailability and high plasma protein binding. OBJECTIVES The aim of this work was to perform molecu...

Evaluation of the antiplasmodial and leishmanicidal potential of Myrciaria dubia (Myrtaceae) extract

Abstract INTRODUCTION: Malaria and leishmaniasis are prevalent in tropical regions, which have environmental characteristics that are highly favorable to protozoa and vectors of these diseases; the transmission of these infections in sub-tropical regions, although recognized, represents only a small fra...

Malaria: tratamiento y quimioprofilaxis
Malaria: treatment and prophylaxis

Rev. chil. infectol; 17 (supl.1), 2000
Malaria es una patología reemergente en el mundo y en América en particular; se revisan aspectos epidemiológicos de la enfermedad en Perú. Las nuevas medidas de control propuestas por la OMS para reducir la mortalidad por malaria y su impacto socio-económico son: diagnóstico y tratamiento precoz de...

Malaria congénita
Congenital malaria

Rev. chil. infectol; 16 (2), 1999
La malaria congénita tiene una incidencia variable, se describe en promedio en el 8 por ciento de los embarazos de mujeres con malaria, con cifra máxima de 25 por ciento. La transmisión transplacentaria depende de varios factores, entre ellos la paridad e inmunidad materna. La infección placentaria e...

Síndrome febril en mujer embarazada proveniente de Africa
Febril syndrome in a pregnant woman arriving from Africa

Rev. chil. infectol; 16 (2), 1999