Wild ginger (Siphonochilus aethiopicus (Schweinf) B.L Burtt) is used in traditional medicines in the West and South of Africa. In the present study, the crude hexane extract of wild ginger was evaluated for in vitro bioactivity. The components isolated from the plant for the first time are: epi-curzerenone, furanodienone (sesquiterpenes), 8(17),12E-labdadiene-15,16-dial, 15-hydroxy-8(17),12E-labdadiene-16-al and 16-oxo-8(17),12E-labdadiene-15-oic acid (labdanes). Cytotoxicity determinations using five cell lines: SH-SY5Y (human, Caucasian, bone marrow, neuroblastoma), Jurkat (human, peripheral blood, leukaemia T cell), L929 (mouse, CH3/connective tissue, areolar and adipose tumour cells), Hep G2 (human, Caucasian, hepatocellular carcinoma) and Hs 27 (normal, human, foreskin cells) were carried out. Anti-trypanosomal activity against Trypanosoma brucei brucei (S427) blood stream forms and anti-bacterial activity against Mycobacterium aurum (CIP .104482) were also investigated. Activity against M. aurum was moderate and at 100µg/ml, the crude extract together with the labdanes showed specific cytotoxicity, indicating anti-cancer potency. Anti-trypanosomal activity was observed in the crude extract which increased with the pure components: 8(17),12E-labdadiene-15,16-dial (MIC = 5.3 µM) and the sesquiterpenoids (MIC = 6.9 µM) as compared to suramin activity (MIC = 10 µM). This anti-trypanosomal activity which is being reported for the first time indicates possible usage against sleeping sickness and nagana in cattle.
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| http://dx.doi.org/10.4314/ajtcam.v9i1.13 | DOI Listing |
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Article Synopsis
- The study investigates the differences in essential oil (EO) and ethanol extract (EE) content and composition in certain traditional Chinese medicinal plants, considering the impact of geographical locations and root-drying methods.
- Four drying methods were tested, revealing that soil removal and shade drying resulted in the lowest EO content, while GC-MS analysis identified 78 EO components and LC-MS found 888 EE components, highlighting significant variations.
- The pharmacodynamic effects demonstrated that both EO and EE can reduce swelling in mice, with EO being more effective than EE, indicating that different species of the plants have variations in their chemical composition which affects their medicinal properties.
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