ultrastructurometry has revealed that daily entry of lead acetate in a dose of 50-100 mg/kg per body weight for 1-2.5 months increases chromatin condensation in nuclei , promotes swelling and myelin-like degeneration of the mitochondria , hyperplasia of the endoplasmic net , as well as appearance of the `` '' enlightment '' '' zones in the cytoplasm of endotheliocytes and perivascular cells of the capillaries from a metaphyseal zone of the rat femur .
C0008546
chromatin
C0007610
nuclei