Effect of vitamin E on the accumulation of fluorescent material in cultured cerebral cortical cells of mice.
The effect of vitamin E on the accumulation of lipofuscin-containing fluorescent material in the mouse cerebral cortical cells in primary culture was studied. Fluorescent material was extracted in ethanol:diethylether (3:1) and autofluorescence intensity of the extracts was measured by a spectrofluorophotometer. Although vitamin E at the concentration of 0.005 IU/ml was not effective, 0.01 IU/ml vitamin E inhibited the accumulation of fluorescent material. Fluorescent material accumulation was reduced to 76.3-86.4% of the control level in 6-, 12-, or 18-day treatment of 0.01 IU/ml vitamin E. High doses of vitamin E (0.05 or 0.1 IU/ml) were toxic for cultured cells. Ethanol, the vehicle of vitamin E, at the final concentration of 0.005% was also effective on the reduction of fluorescent material accumulation (81.0% of the control level at 18 days). The inhibitory effects of vitamin E as well as ethanol on the accumulation of fluorescent material in cultured cells are explained by their nature as free radical scavengers.
Kan
S
S
Zoological Institute, Faculty of Science, University of Tokyo, Japan.
Devi
S A
SA
Kawashima
S
S
D000818:Animals; D002478:Cells, Cultured; D016922:Cellular Senescence; D002540:Cerebral Cortex / Q000737:chemistry / Q000166:cytology / Q000378:metabolism*; D005453:Fluorescence; D008062:Lipofuscin / Q000378:metabolism*; D051379:Mice; D014020:Tissue Extracts / Q000378:metabolism; D014810:Vitamin E / Q000494:pharmacology*
D008062:Lipofuscin; D014020:Tissue Extracts; D014810:Vitamin E