نتایج جستجو برای: vivax
تعداد نتایج: 4808 فیلتر نتایج به سال:
Resistance to Plasmodium vivax blood-stage infection has been widely recognised to result from absence of the Duffy (Fy) blood group from the surface of red blood cells (RBCs) in individuals of African descent. Interestingly, recent studies from different malaria-endemic regions have begun to reveal new perspectives on the association between Duffy gene polymorphism and P. vivax malaria. In Pap...
The circumsporozoite protein (CSP) of the Plasmodium vivax infective sporozoite is considered to be a major target for the development of recombinant malaria vaccines. The Duffy blood group molecule acts as the red blood cell receptor for P. vivax. We review the frequency of P. vivax CSP variants and report their association with the Duffy blood group genotypes from Brazilian Amazon patients ca...
background: plasmodium vivax is responsible for approximately 80 million malaria cases in the world. apical membrane antigen1 (ama-1) is a type i integral membrane protein present in all plasmodium species. ama-1 interferes in critical steps of invasion of human hepatocytes by sporozoites and red blood cells by merozoites and is one of the most immunodominant antigens for eliciting a protect...
background: the present study was formulated in order to determine polymorphism of dihydropteroate synthetase gene (dhps) of plasmodium vivax (p . vivax ) in hormozgan province, southern iran and mutations at codons 382, 383, 512, 553, and 585 associated with resistance of p. vivax to sulfadoxine. method : one-hundred eighteen isolates of p. vivax were prepared within 2007-2008 to determine di...
BACKGROUND Malaria is a major public health problem in the malaria endemic zones of the world. Various factors influence the prevalence of malaria. This study was conducted to determine the variation in frequency of Plasmodium vivax and Plasmodium falciparum malaria in different seasons of the year in Khyber Teaching Hospital, Peshawar. METHODS A total of 411 patients were included in the stu...
background: plasmodium vivax malaria accounts for approximately 88% of malaria cases in iran. there is limited information on genetic diversity of p. vivax in the country and a need to develop and apply an effective vaccine against the disease is necessary. among many potential candidates, msp -3β gene is promising target. this study was designed and carried out to determine the variation of...
background: parasite lactate dehydrogenase ( p ldh) is extensively employed as malaria rapid diagnostic tests (rdts). moreover, it is a well-known drug target candidate. however, the genetic diversity of this gene might influence performance of rdt kits and its drug target candidacy. this study aimed to determine polymorphism of p ldh gene from iranian isolates of p. vivax and p. falciparum. m...
UNLABELLED Prevention of relapse of Plasmodium vivax infection is a key treatment goal in malaria. Use of P. vivax genotyping in a multicenter, double-blind, randomized, placebo-controlled phase 2b study in Peru, India, Thailand, and Brazil allowed determination of genetically heterologous or homologous P. vivax infection recurrence following receipt of chloroquine plus one of 4 doses of tafeno...
BACKGROUND Plasmodium vivax is the most prevalent human malaria parasite, causing serious public health problems in malaria-endemic countries. Until recently the Duffy-negative blood group phenotype was considered to confer resistance to vivax malaria for most African ethnicities. We and others have reported that P. vivax strains in African countries from Madagascar to Mauritania display capaci...
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