نتایج جستجو برای: antimalarial

تعداد نتایج: 6488  

2011
Fátima Nogueira

Malaria is a mosquito-borne disease caused by parasites of the genus . In humans, parasites multiply in the liver and then infect red blood cells. The life cycle consists of a sexual phase in the mosquito vector (sporogony) and an asexual phase in the vertebrate host (schizogony); both life cycle phases can be detected in assays. In general, and are the two basic approaches routinely used to ev...

2013
Appolinary AR Kamuhabwa Richard Silumbe

BACKGROUND Irrational prescribing and dispensing of antimalarials has been identified as a contributing factor in the emergence of malaria parasites resistant to existing antimalarial drugs. Factors that contribute to such irrational prescribing and dispensing should therefore be identified to address this problem. The aim of this study was to assess irrational antimalarial drug dispensing and ...

2015
Shuo Shen Shu-Zhi Liu Yu-Shi Zhang Mao-Bo Du Ai-Hua Liang Li-Hua Song Zu-Guang Ye

Malaria is still a serious public health problem in some parts of the world. The problems of recurrence and drug resistance are increasingly more serious. Thus, it is necessary to develop a novel antimalarial agent. The objectives of this study were to construct a novel compound antimalarial transdermal nanosystem-ethosomal cataplasm, to investigate its characteristics and efficiency, and to sy...

2017
Susy Tjahjani

BACKGROUND Malaria especially falciparum malaria still causes high morbidity and mortality in tropical countries. Several factors have been linked to this situation and the most important one is the rapid spread of parasite resistance to the currently available antimalarials, including artemisinin. Artemisinin is the main component of the currently recommended antimalarial, artemisinin based co...

Journal: :Antimicrobial agents and chemotherapy 2003
Giancarlo A Biagini Eric Richier Patrick G Bray Michèle Calas Henri Vial Stephen A Ward

Quaternary ammonium compounds have received recent attention due to their potent in vivo antimalarial activity based on their ability to inhibit de novo phosphatidylcholine synthesis. Here we show that in addition to this, heme binding significantly contributes to the antimalarial activity of these compounds. For the study, we used a recently synthesized bis-quaternary ammonium compound, T16 (1...

Journal: :Environmental Health Perspectives 2004

Journal: :Journal of vector borne diseases 2003
Walter R Taylor Jean Rigal Piero L Olliaro

Antimalarial drug resistance has now become a serious global challenge and is the principal reason for the decline in antimalarial drug efficacy. Malaria endemic countries need inexpensive and efficacious drugs. Preserving the life spans of antimalarial drugs is a key part of the strategy for rolling back malaria. Artemisinin-based combinations offer a new and potentially highly effective way t...

2015
Bryan T. Mott Richard T. Eastman Rajarshi Guha Katy S. Sherlach Amila Siriwardana Paul Shinn Crystal McKnight Sam Michael Norinne Lacerda-Queiroz Paresma R. Patel Pwint Khine Hongmao Sun Monica Kasbekar Nima Aghdam Shaun D. Fontaine Dongbo Liu Tim Mierzwa Lesley A. Mathews-Griner Marc Ferrer Adam R. Renslo James Inglese Jing Yuan Paul D. Roepe Xin-zhuan Su Craig J. Thomas

Drug resistance in Plasmodium parasites is a constant threat. Novel therapeutics, especially new drug combinations, must be identified at a faster rate. In response to the urgent need for new antimalarial drug combinations we screened a large collection of approved and investigational drugs, tested 13,910 drug pairs, and identified many promising antimalarial drug combinations. The activity of ...

Journal: :Journal of chemical information and modeling 2013
Liying Zhang Denis Fourches Alexander Sedykh Hao Zhu Alexander Golbraikh Sean Ekins Julie Clark Michele C. Connelly Martina Sigal Dena Hodges Armand Guiguemde R. Kiplin Guy Alexander Tropsha

Quantitative structure-activity relationship (QSAR) models have been developed for a data set of 3133 compounds defined as either active or inactive against P. falciparum. Because the data set was strongly biased toward inactive compounds, different sampling approaches were employed to balance the ratio of actives versus inactives, and models were rigorously validated using both internal and ex...

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