Resultados: 7

Effect of mass dihydroartemisinin-piperaquine administration in southern Mozambique on the carriage of molecular markers of antimalarial resistance

PLos ONE; 15 (10), 2020
Background Mass drug administration (MDA) can rapidly reduce the burden of Plasmodium falciparum (Pf). However, concerns remain about its contribution to select for antimalarial drug resistance. Methods We used Sanger sequencing and real-time PCR to determine the proportion of molecular markers associate...

Differential expression of var subgroups and PfSir2a genes in afebrile Plasmodium falciparum malaria: a matched case-control study

Malar. j. (Online); 18 (1), 2019
Background: Poor knowledge on the afebrile Plasmodium falciparum biology limits elimination approaches to target asymptomatic malaria. Therefore, the association of parasite factors involved in cytoadhesion, parasite multiplication and gametocyte maturation with afebrile malaria was assessed. Methods: Pl...

Differential expression of var subgroups and PfSir2a genes in afebrile Plasmodium falciparum malaria: a matched case-control study

Malar. j. (Online); 18 (1), 2019
Background: Poor knowledge on the afebrile Plasmodium falciparum biology limits elimination approaches to target asymptomatic malaria. Therefore, the association of parasite factors involved in cytoadhesion, parasite multiplication and gametocyte maturation with afebrile malaria was assessed. Methods: Pl...

Molecular surveillance of pfhrp2 and pfhrp3 deletions in plasmodium falciparum isolates from mozambique

Malar. j. (Online); 16 (416), 2017
Background: Malaria programmes use Plasmodium falciparum histidine-rich protein-2 (PfHRP2) based rapid diagnos tic tests (RDTs) for malaria diagnosis. The deletion of this target antigen could potentially lead to misdiagnosis, delayed treatment and continuation of active transmission. Methods: Plasmodium...

IgG against Plasmodium falciparum variant surface antigens and growth inhibitory antibodies in Mozambican children receiving intermittent preventive treatment with sulfadoxine-pyrimethamine

Immunobiology (1979); 216 (7), 2011
This study aimed to evaluate whether intermittent preventive treatment in infants with sulfadoxine-pyrimethamine (IPTi-SP) had an effect on the acquisition of IgG against Plasmodium falciparum variant surface antigens (VSA) and growth-inhibitory antibodies in Manhiça, Mozambique. In addition, we assesse...

Sub-microscopic infections and long-term recrudescence of Plasmodium falciparum in Mozambican pregnant women

Malar. j. (Online); 8 (9), 2009
Background: Control of malaria in pregnancy remains a public health challenge. Improvements in its correct diagnosis and the adequacy of protocols to evaluate anti-malarial drug efficacy in pregnancy, are essential to achieve this goal. Methods: The presence of Plasmodium falciparum was assessed by real-...

Rapid increase of Plasmodium falciparum dhfr/dhps resistant haplotypes, after the adoption of sulphadoxine-pyrimethamine as first line treatment in 2002, in southern Mozambique

Malar. j. (Online); 7 (115), 2008
In late 2002, the health authorities of Mozambique implemented sulphadoxine-pyrimethamine (SP)/amodiaquine (AQ) as first-line treatment against uncomplicated falciparum malaria. In 2004, this has been altered to SP/artesunate in line with WHO recommendations of using Artemisinin Combination Therapies (AC...