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Measuring and interpreting oxygen consumption rates in whole fly head segments.
J. Vis. Exp. 143, accepted (2018)
Regulated metabolic activity is essential for the normal functioning of living cells. Indeed, altered metabolic activity is causally linked with the progression of cancer, diabetes, neurodegeneration, and aging to name a few. For instance, changes in mitochondrial activity, the cell's metabolic powerhouse, have been characterized in many such diseases. Generally, the oxygen consumption rates of mitochondria were considered a reliable readout of mitochondrial activity and measurements in some of these studies were based on isolated mitochondria or cells. However, such conditions may not represent the complexity of a whole tissue. Recently, we have developed a novel method that enables the dynamic measurement of oxygen consumption rates from whole isolated fly heads. By utilizing this method, we have recorded lower oxygen consumption rates of the whole head segment in young versus aged flies. Secondly, we have discovered that lysine deacetylase inhibitors rapidly alter the oxygen consumption in the whole head. Our novel technique may therefore aid in uncovering new properties of various drugs, which may impact metabolic rates. Furthermore, our method may give a better understanding of metabolic behavior in an experimental setup that more closely resembles physiological states.
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Schlagwörter Biochemistry ; Issue 143 ; Oxygen Consumption ; Whole Head Measurement ; Energy Metabolism ; Epigenetics ; Kdac Inhibitors ; Drosophila; Histone Acetylation; Life-span; Metabolism; Diseases
Zeitschrift Journal of Visualized Experiments
Quellenangaben Band: 143 Heft: 143
Verlagsort 1 Alewife Center, Ste 200, Cambridge, Ma 02140 Usa
Institut(e) Institute of Experimental Genetics (IEG)