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Artemisia annua: A New Version of a Traditional Tea under Randomized, Controlled Clinical Trial for the Treatment of Malaria

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Advances in Bioscience and Biotechnology 2016年第12期7卷 545-563页

作者： Pedro Melillo de Magalhães Glyn Mara Figueira José Maria de Souza Ana Maria Revorêdo Ventura Maria Deise de Oliveira Ohnishi Darci Rodrigues da Silva Luiz Alberto Gonçalves Lobo Fabrício Bezerra Eleres Rosana Libonati Merlin Willcox eloisa cavassani pimentel University of Campinas Campinas Brazil Evandro Chagas Institute Belém Brazil Federal University of Pará Belém Brazil University of Oxford (Research Initiative for Traditional Antimalarial Methods) Oxford UK Campinas Municipal Centre of Health Campinas Brazil

Introduction: The traditional antimalarial tea Artemisia annua, indicated for centuries in China to treat fevers, is again arousing interest for the treatment of malaria due to improvements attained in the plant composition by a few Institutions throughout the world, including the State University of Campinas (UNICAMP), Brazil, increasing its principal component by more than 100 times as from standard varieties, giving 1% in artemisinin and an expressive biomass yield such as 2 tons of dried leaves/hectare. Clinical trials carried out with this material in African countries have proven its therapeutic potential for a new generation of Artemisia tea in the treatment of falciparum malaria. In addition to artemisinin, recent studies have identified and quantified other compounds present in the crude extract and characterized their contributions to the anti-malarial efficacy, including their action against chloroquine-resistant strains. The majority of the clinical trials carried out with Artemisia tea in African countries have shown that the control of the parasitaemia is efficient in the initial treatment period, but few trials have followed the patients up to the 28th day. This first clinical trial carried out in Brazil with the A. annua infusion, after toxicological trials that defined the safety of this form of medication. Methods: The therapeutic efficacy of the tea was measured in patients with falciparum malaria over 28 days, comparing it with the current first-line treatment namely artemether-lumefantrine (Coartem?). The trial was carried out in controlled groups according to official protocol approved by the National Ethics in Research Committee (CONEP: 77/ 2011) and a rigorous control of the 17 patients with non-serious cases of falciparum malaria, recruited in the following three municipalities of the State of Pará, Brazil: Tucuruí, Goianésia do Pará and Anajás. The tea group received the infusion prepared in the proportion of 1.25 g of

关键词： Malaria Herbal Medicine Artemisia annua Clinical Trial

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