The world's first wiki where authorship really matters (Nature Genetics, 2008). Due credit and reputation for authors. Imagine a global collaborative knowledge base for original thoughts. Search thousands of articles and collaborate with scientists around the globe.

wikigene or wiki gene protein drug chemical gene disease author authorship tracking collaborative publishing evolutionary knowledge reputation system wiki2.0 global collaboration genes proteins drugs chemicals diseases compound
Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

New cytotoxic 6-oxygenated 8,9-dihydrofurocoumarins, hedyotiscone A - C, from Hedyotis biflora.

Using the bioactivity-guided fractionation method, three new 6-oxygenated 8,9-dihydrofurocoumarin-type compounds, hedyotiscones A, B, and C were isolated from the methanol extract of Hedyotis biflora together with seven known compounds. The structures of all isolated compounds were determined on the basis of mass and spectroscopic evidence. Compounds, oleanolic acid, and 6'-(beta-sitosteryl-3- O-beta- D-glucopyranosidyl) pentadecanoate showed marginal cytotoxicity against Hep G2 cells (human liver cancer cells) with IC50 values of 14.4, 17.4, 4.9, 8.0, and 9.2 microg/mL, respectively. Ursolic acid showed significant cytotoxicity against MDA-MB-231 cells (human breast carcinoma cells) with an IC50 value of 1.49 microg/mL.[1]


  1. New cytotoxic 6-oxygenated 8,9-dihydrofurocoumarins, hedyotiscone A - C, from Hedyotis biflora. Chen, Y.H., Chang, F.R., Wu, C.C., Yen, M.H., Liaw, C.C., Huang, H.C., Kuo, Y.H., Wu, Y.C. Planta Med. (2006) [Pubmed]
WikiGenes - Universities