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“The phenomenon occurs at concentrations in the range 10-50 microM. beta-tocopherol addition together with alpha-tocopherol , prevents both cell growth and protein kinase C inhibition.”
Biochemistry and molecular biology international • 1997 | View Paper
“In these experiments, alpha-Toch strongly inhibited thrombin-induced PKC activity and endothelin secretion in a dose-dependent manner, whereas beta-Toch was more than 10-fold less active than alpha-Toch in inhibiting these stimulations.”
Proceedings of the National Academy of Sciences of the United States of America • 1995 | View Paper
“ D-beta-Tocopherol , a poor inhibitor of smooth muscle cell proliferation, has been shown to be capable of preventing and reversing the inhibition by D-alpha-tocopherol.”
“The competition between D-alpha-tocopherol and D-beta-tocopherol suggests the existence of a common binding site for the two molecules.”