Adaptation to cold includes adaptive changes at the organism and molecular levels. One of the interesting facts is induction of cytochromes P450 subfamily 1A (CYP1A) in the liver of rats, inducible enzymes participating in biotransformation of procarcinogenic xenobiotics, under the effect of moderate cold exposure. Cold activation of CYP1A can be mediated by adaptive changes and the resultant redistribution or intensification of the synthesis of mediator compounds. This hypothesis is verified in the present study. The role of bilirubin, tocopherol, and corticosterone as mediators of cold induction of CYP1A in the rat liver was evaluated. The results indicate that these compounds can be involved in cold induction of CYP1A, but none of them is the only mediator in this process.
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Translated from Byulleten’ Eksperimental’noi Biologii i Meditsiny, Vol. 154, No. 11, pp. 593–597, November, 2012
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Perepechaeva, M.L., Grishanova, A.Y. Cold-Induced Activities of Cytochromes P450 1A1 and 1A2 in Rat Liver: Putative Role of Endogenous Compounds in Induction Mechanism. Bull Exp Biol Med 154, 638–641 (2013). https://doi.org/10.1007/s10517-013-2019-2
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DOI: https://doi.org/10.1007/s10517-013-2019-2