[Mechanism of silybin action, III. Resorption of the flavonolignane derivative silybin into rat liver cells (author's transl)].

After tritium labelling of silybin the time-dependent uptake of the flavonolignane derivative into rat liver was measured. Within the liver cells the distribution of silybin (and -metabolites) in cytosol, nuclear constituents and membrane material was determined and the accumulation of the flavonolignane derivative in cytosol and nuclear membranes confirmed by autoradiography. Within the nuclei a preferential binding on chromosomal proteins was found.