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  • Title: Functional changes in mitochondrial properties as a result of their membrane cryodestruction. I. Influence of freezing and thawing on succinate-ferricyanide reductase of intact liver mitochondria.
    Author: Tsvetkov T, Tsonev L, Meranzov N, Minkov I.
    Journal: Cryobiology; 1985 Feb; 22(1):47-54. PubMed ID: 3979077.
    Abstract:
    The interaction of the succinate dehydrogenase complex of rat liver mitochondria with an artificial electron acceptor (K3Fe(CN)6), impermeable to the mitochondrial membrane as an index of a cryoinjury is investigated. It is shown that the freeze-thawing stimulates succinate-ferricyanide reductase (SFCR) activity of intact mitochondria. The increase of the freezing and thawing rates leads to a decrease in the released SFCR activity. The released SFCR activity after low-temperature treatment is a consequence of a nonspecific change in membrane ferricyanide permeability. The released SFCR activity decreases as the freezing and thawing rates increase.
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