| Literature DB >> 5676528 |
Abstract
Long chain free fatty acids interfere with the inhibitory action of phenethylbiguanide and related compounds on mitochondrial respiration in vitro. This interference depends on binding of fatty acids to mitochondria and diminishes with decreasing chain length. Reversal of guanidine-derivative inhibition by fatty acids differs from that caused by dinitrophenol in that the effect of fatty acid is achieved without alteration in coupling or respiratory control. The binding of phenethylbiguanide to mitochondria is inhibited by both fatty acid and dinitrophenol. Serum albumin potentiates the inhibitory potency of guanidine derivatives, probably by removing endogenous mitochondrial free fatty acids.Entities:
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Year: 1968 PMID: 5676528 PMCID: PMC297398 DOI: 10.1172/JCI105919
Source DB: PubMed Journal: J Clin Invest ISSN: 0021-9738 Impact factor: 14.808