Seahorse Xf 24

Oxygen consumption rate indicates how actively cells are using oxygen during respiration, while extracellular acidification rate reflects changes associated with glycolytic activity. Examining both measurements helps distinguish shifts in respiratory and glycolytic behavior rather than treating cellular energy use as a single process. Their real-time patterns can reveal how cells alter metabolism during an experiment.

Sequential addition creates a controlled comparison within the same measurement sequence. Researchers can observe baseline metabolic behavior, introduce a substrate, inhibitor, or other compound, and then evaluate the resulting change in oxygen consumption or extracellular acidification. This approach helps connect a metabolic response to a specific experimental manipulation and supports assessment of mitochondrial function, glycolysis, or drug response.

The two readouts describe different but related aspects of energy metabolism. Oxygen consumption provides information about respiratory activity, whereas extracellular acidification indicates glycolytic changes. Comparing their responses can show whether an experimental condition primarily affects respiration, glycolysis, or the balance between them. This combined interpretation is especially useful when evaluating metabolic flexibility or altered cell physiology.

Cells are studied in the instrument’s 24-well microplate while the sensor cartridge records metabolic changes over time. During the assay, researchers can sequentially introduce selected substrates, inhibitors, or other compounds and compare measurements before and after each addition. The resulting oxygen consumption and extracellular acidification profiles are then interpreted to assess cellular energy metabolism under the chosen conditions.

The platform supports experiments that vary the metabolic substrate, inhibitor, or other compound applied to cells, along with the biological condition being tested. Researchers can compare how cells respond across these conditions by monitoring changes in respiration and glycolytic activity. Such comparisons can identify altered mitochondrial function, changes in metabolic flexibility, or sensitivity to a drug-related treatment.

Seahorse Xf 24 measurements are useful when investigators need real-time evidence of how living cells use energy under experimental conditions. Applications described for the platform include studies of cell physiology, disease mechanisms, toxicology, mitochondrial function, glycolysis, and drug responses. The paired metabolic readouts can help characterize how a condition changes cellular bioenergetics.