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- W2146594405 abstract "In traditional medicine whole plants or mixtures of plants are used rather than isolated compounds. There is evidence that crude plant extracts often have greater in vitro or/and in vivo antiplasmodial activity than isolated constituents at an equivalent dose. The aim of this paper is to review positive interactions between components of whole plant extracts, which may explain this. Narrative review. There is evidence for several different types of positive interactions between different components of medicinal plants used in the treatment of malaria. Pharmacodynamic synergy has been demonstrated between the Cinchona alkaloids and between various plant extracts traditionally combined. Pharmacokinetic interactions occur, for example between constituents of Artemisia annua tea so that its artemisinin is more rapidly absorbed than the pure drug. Some plant extracts may have an immunomodulatory effect as well as a direct antiplasmodial effect. Several extracts contain multidrug resistance inhibitors, although none of these has been tested clinically in malaria. Some plant constituents are added mainly to attenuate the side-effects of others, for example ginger to prevent nausea. More clinical research is needed on all types of interaction between plant constituents. This could include clinical trials of combinations of pure compounds (such as artemisinin + curcumin + piperine) and of combinations of herbal remedies (such as Artemisia annua leaves + Curcuma longa root + Piper nigum seeds). The former may enhance the activity of existing pharmaceutical preparations, and the latter may improve the effectiveness of existing herbal remedies for use in remote areas where modern drugs are unavailable." @default.
- W2146594405 created "2016-06-24" @default.
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- W2146594405 creator A5055513458 @default.
- W2146594405 creator A5073370481 @default.
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- W2146594405 date "2011-03-15" @default.
- W2146594405 modified "2023-10-15" @default.
- W2146594405 title "Whole plant extracts versus single compounds for the treatment of malaria: synergy and positive interactions" @default.
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- W2146594405 doi "https://doi.org/10.1186/1475-2875-10-s1-s4" @default.
- W2146594405 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/3059462" @default.
- W2146594405 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/21411015" @default.
- W2146594405 hasPublicationYear "2011" @default.
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