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  • Title: Cytotoxic and anticarcinogenic activity of the ent-kaurene diterpenoid, melissoidesin, from Isodon wightii (Bentham) H. Hara.
    Author: Thirugnanasampandan R, Jayakumar R.
    Journal: Nat Prod Res; 2009; 23(16):1499-506. PubMed ID: 19844824.
    Abstract:
    Isodon wightii is a common plant found in the Western Ghats of South India. The ent-kaurene diterpenoid melissoidesin, isolated from the leaves of I. wightii, showed significant cytotoxicity against lung cancer and neuroblastoma cell lines with IC(50) values of 6 and 4.2 microg mL(-1), respectively. The prevention of deoxyribose degradation activity of melissoidesin was significant and the IC(50) value was calculated to be 163.1 microg mL(-1). The anticarcinogenic activity of melissoidesin by comet assay showed significant DNA damage protecting activity in a dose-dependent manner.
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