نتایج جستجو برای: p vivax
تعداد نتایج: 1272557 فیلتر نتایج به سال:
Plasmodium vivax Duffy binding protein (DBP) is a conserved functionally important protein. P. vivax DBP is an asexual blood-stage malaria vaccine candidate because adhesion of P. vivax DBP to its erythrocyte receptor is essential for the parasite to continue development in human blood. We developed a soluble recombinant protein of P. vivax DBP (rDBP) and examined serologic activity to it in re...
BACKGROUND & OBJECTIVES The northeastern States of India are co-endemic for Plasmodium falciparum and P. vivax malaria. The transmission intensity is low-to-moderate resulting in intermediate to stable malaria. Malaria control prioritized P. falciparum being the predominant and life threatening infection (>70%). P. vivax malaria remained somewhat neglected. The present study provides a status r...
INTRODUCTION Plasmodium vivax malaria has a wide geographic distribution and poses challenges to malaria elimination that are likely to be greater than those of P. falciparum. Diagnostic tools for P. vivax infection in non-reference laboratory settings are limited to microscopy and rapid diagnostic tests but these are unreliable at low parasitemia. The development and validation of a high-throu...
We estimate that the global burden of malaria due to Plasmodium vivax is approximately 70-80 million cases annually. Probably approximately 10-20% of the world's cases of P. vivax infection occur in Africa, south of the Sahara. In eastern and southern Africa, P. vivax represents around 10% of malaria cases but < 1% of cases in western and central Africa. Outside of African, P. vivax accounts fo...
BACKGROUND When both parasite species are co-endemic, Plasmodium vivax incidence peaks in younger children compared to P. falciparum. To identify differences in the number of blood stage infections of these species and its potential link to acquisition of immunity, we have estimated the molecular force of blood-stage infection of P. vivax ((mol)FOB, i.e. the number of genetically distinct blood...
Pyrimethamine and WR99210 exert opposing selection on dihydrofolate reductase from Plasmodium vivax.
Plasmodium vivax is a major public health problem in Asia and South and Central America where it is most prevalent. Until very recently, the parasite has been effectively treated with chloroquine, but resistance to this drug has now been reported in several areas. Affordable alternative treatments for vivax malaria are urgently needed. Pyrimethamine-sulfadoxine is an inhibitor of dihydrofolate ...
Plasmodium vivax is the most widely distributed human parasite and the main cause of human malaria outside the African continent. However, the knowledge about the genetic variability of P. vivax is limited when compared to the information available for P. falciparum. We present the results of a study aimed at characterizing the genetic structure of P. vivax populations obtained from pregnant wo...
BACKGROUND Plasmodium vivax invasion requires interaction between the human Duffy antigen on the surface of erythrocytes and the P. vivax Duffy binding protein (PvDBP) expressed by the parasite. Given that Duffy-negative individuals are resistant and that Duffy-negative heterozygotes show reduced susceptibility to blood-stage infection, we hypothesized that antibodies directed against region tw...
background: one of the most important enzymatic disorders that interact with malaria is deficiency of g6pd (gloucose-6-phosphate dehydrogenase). this enzyme protects red blood cells from hydrogen peroxide and other oxidative damages. distribution of this enzyme deficiency usually accompanies with low level distribution of malaria disease in most malarious areas. so this hypothesis may be consid...
background: plasmodium vivax is the predominant species causes of malaria with about 90% total annual reported malaria in iran. this study conducted to determine the susceptibility of plasmodium vivax isolates to chloroquine in sistan and balochistan province, southeastern iran. methods: a total 270 subjects with symptomatic malaria and confirmed p. vivax infection completed the designed 28-day...
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