The resistance of muscle larvae of Trichinella spiralis to exposure to low temperatures]

It has been shown that the resistance of muscular larvae of Trichinella spiralis to the effect of low temperatures depends on the conditions of freezing and composition of media possessing cryoprotective properties. It has been established that under optimal conditions (medium of microenvironment, conditions of freezing) during the storage in liquid nitrogen muscular larvae of T. spiralis preserve 50 to 60% of their resistance by the character of mobility and 11 to 15% by their capacity for reproduction. The question of creation of low-temperature bank for Trichinella is discussed.     

Phosphorylation of lactate dehydrogenase by purified plasma membranes of loach liver cells: stimulation with insulin

It is established that insulin enhances the ability of the loach liver plasma membranes to phosphorylate lactate dehydrogenase. In the case of insulin-treated plasma membranes the amount of incorporated 32P is more than 4 times higher than that of the basal level. It is concluded that insulin-stimulated plasma membrane-dependent phosphorylation of the enzyme is one of the possible molecular mechanisms of hormone action on intracellular metabolism.