Liver mitochondrial coupling efficiency and its relationship to oxidative capacity and adenine nucleotide translocase content: A comparative study among crocodiles, birds and mammals
Damien Roussel , Nathan Roussel , Yann Voituron , Benjamin Rey
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Abstract
The primary objective of this study was to assess whether adenine nucleotide translocase (ANT) content could be associated with phylogenetic disparities in mitochondrial coupling efficiency, within liver mitochondria obtained from rats, crocodiles, and ducklings. Our measurements included mitochondrial membrane conductance, ANT content, and oxidative phosphorylation fluxes at various steady-state rates. We observed significant variations in liver mitochondrial coupling efficiency across the three species. These variations correlated with interspecific differences in mitochondrial oxidative capacity and, to a lesser extent, the ANT content of liver mitochondria. These findings expand upon previous research by highlighting the pivotal role of oxidative capacity and ANT in modulating mitochondrial efficiency on an interspecific scale.
期刊介绍：
Mitochondrion is a definitive, high profile, peer-reviewed international research journal. The scope of Mitochondrion is broad, reporting on basic science of mitochondria from all organisms and from basic research to pathology and clinical aspects of mitochondrial diseases. The journal welcomes original contributions from investigators working in diverse sub-disciplines such as evolution, biophysics, biochemistry, molecular and cell biology, genetics, pharmacology, toxicology, forensic science, programmed cell death, aging, cancer and clinical features of mitochondrial diseases.
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