administration to experimental animals of vitamin a in a dose of 30 000 iu , that does not provoke toxic hypervitaminosis , simulates vital activity of the cells , manifesting in the increased area of the nuclei and cytoplasm , in the enlargement of the total cytoplasm protein and of the content of nuclear rna and cytoplasm , in the increased weight of the mammary gland and body weight .
C0007634
cells
C0010834
cytoplasm