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Van den Berg 2010 Metabolism
Coupling states OXPHOS  + , ET  +
Has abstract Considerable variation in energy expenditu
Considerable variation in energy expenditure is observed in C57Bl/6 mice on a high-fat diet. Because muscle tissue is a major determinant of whole-body energy expenditure, we set out to determine the variation in energy expenditure and its possible association with skeletal muscle mitochondrial function upon high-fat diet intervention. Metabolic cages using indirect calorimetry were used to assess whole-body energy metabolism in C57Bl/6 male mice during the first 3 days of high-fat diet intervention. Mice were grouped in a negative or positive residual nocturnal energy expenditure group after correction of total nocturnal energy expenditure for body mass by residual analysis. The positive residual energy expenditure group was characterized by higher uncorrected total nocturnal energy expenditure and food intake. On day 7, mitochondria were isolated from the skeletal muscle of the hind limb. Mitochondrial density was determined by mitochondrial protein content and did not differ between the positive and negative residual energy expenditure groups. Using high-resolution respirometry, mitochondrial oxidative function was assessed using various substrates. Mitochondria from the positive residual energy expenditure group were characterized by a lower adenosine diphosphate-stimulated respiration and lower respiratory control rates using palmitoyl-coenzyme A as substrate. These results indicate that reduced mitochondrial coupling is associated with positive residual energy expenditure and high rates of total energy expenditure ''in vivo''.
s of total energy expenditure ''in vivo''.  +
Has info [ PMID: 20494374]  +
Has publicationkeywords Energy expenditure  + , C57Bl6  + , Coupling  + , High resolution respirometry  +
Has title van den Berg SA, Nabben M, Bijland S, Vosh
van den Berg SA, Nabben M, Bijland S, Voshol PJ, van Klinken JB, Havekes LM, Romijn JA, Hoeks J, Hesselink MK, Schrauwen P, van Dijk KW (2010) High levels of whole-body energy expenditure are associated with a lower coupling of skeletal muscle mitochondria in C57Bl/6 mice. Metabolism 59:1612-8.
ria in C57Bl/6 mice. Metabolism 59:1612-8.  +
Instrument and method Oxygraph-2k  +
Mammal and model Mouse  +
MiP area Respiration  + , Exercise physiology;nutrition;life style  +
Preparation Isolated mitochondria  +
Respiration and regulation ADP  + , Coupling efficiency;uncoupling  + , Substrate  + , Uncoupler  + , Fatty acid  +
Tissue and cell Skeletal muscle  +
Was published by MiPNetLab NL Maastricht Schrauwen P +
Was published in journal Metabolism +
Was published in year 2010  +
Was written by Van den Berg SA + , Nabben M + , Bijland S + , Voshol PJ + , Van Klinken JB + , Havekes LM + , Romijn JA + , Hoeks J + , Hesselink MK + , Schrauwen P + , Van Dijk KW +
Categories Publications
Modification date
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14:24:56, 13 November 2017  +
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