rb+-discrimination ratios calculated on the basis of rb+ and k+ contents of both , cortical cell cytoplasm and cerebrospinal fluid , are higher in vitamin e deficient rats than in the controls ( +20 % ) , which supports the view that the enhanced membrane lipid peroxidation induced by vitamin e deficiency impairs the passive membrane permeability for rb+ ( and k+ ) .
C0007634
cell
C0010834
cytoplasm