Biomedical subjects
Publications and source records attributed to E Röder.
The furanoacridone alkaloid isogravacridonchlorine has been isolated from the roots of Ruta graveolens, the structure was elucidated by spectroscopic means. Its mutagenic activity and mode of action was characterized without as well as with metabolic activation using different Salmonella typhimurium strains.
An alkaloid extract of Symphytum officinale was investigated for its chromosome-damaging effect in human lymphocytes in vitro. In concentrations of 1.4 micrograms/ml and 14 micrograms/ml the alkaloids had no effect, in concentrations of 140 micrograms/ml and 1400 micrograms/ml the alkaloids induced sister chromatid exchanges (SCE) as well as chromosome aberrations. Additionally, the influence of rat liver enzymes (S9) was tested. The SCE-inducing capacity and the clastogenic effect of Symphytum alkaloids was increased by simultaneous application of S9-Mix.
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