[Hyperthyroidism: increase in the electrical stability of membranes from liver mitochondria lipids]

Electrical stability of the membranes was assessed in bilayer lipid membranes and liposomes. It was shown that the break down potential of the membranes prepared from mitochondrial phospholipids of hyperthyroid rabbits' liver is higher than that for the membranes from mitochondrial lipids of the control animals. It is suggested that the increased electrical stability of the membranes is consequent on the changes in the phospholipid content of liver mitochondrial membranes in hyperthyrosis.