Mitochondrial Bioenergetics
Mitochondrial Bioenergetics - Related Videos
11:40
Bioenergetics and the Oxidative Burst: Protocols for the Isolation and Evaluation of Human Leukocytes and Platelets
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Cited by 74 •
2014
Blood leukocytes and platelets can be used as a marker of overall bioenergetic health of an individual and so have the potential to monitor pathological processes and the impact of treatments. Here we describe a method to isolate and measure mitochondrial function and the oxidative burst in these cells.
07:20
Bioenergetic Profile Experiment using C2C12 Myoblast Cells
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Cited by 190 •
2010
A description of a method for profiling mitochondrial function in cells is provided. The mitochondrial profile generated provides four parameters of mitochondrial function that can be measured in one experiment: basal respiration rate, ATP-linked respiration, proton leak, and reserve capacity.
06:15
Evaluation of Bioenergetic Function in Cerebral Vascular Endothelial Cells
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Cited by 11 •
2016
Endothelial cell mitochondria are critical to maintain blood-brain-barrier integrity. We introduce a protocol to measure bioenergetic function in cerebral vascular endothelial cells.
09:39
Real-Time Measurement of the Mitochondrial Bioenergetic Profile of Neutrophils
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Cited by 3 •
2023
We describe stepwise protocols measuring the mitochondrial respiration of mouse and human neutrophils and HL60 cells using the metabolic extracellular flux analyzer.
08:04
Measuring Mitochondrial Electron Transfer Complexes in Previously Frozen Cardiac Tissue from the Offspring of Sow: A Model to Assess Exercise-Induced Mitochondrial Bioenergetics Changes
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2021
Preparation of mitochondria-enriched samples from previously frozen archived solid tissues allowed the investigators to perform both functional and analytical assessments of mitochondria in various experimental modalities. This study demonstrates how to prepare mitochondria-enriched preparations from frozen heart tissue and perform analytical assessments of mitochondria.
FAQs
A single readout does not describe the entire energy state of a cell. Oxygen consumption indicates respiratory activity, ATP measurements reflect usable energy production, membrane potential reports the electrochemical condition across the inner membrane, and metabolite-use analysis shows which nutrients support metabolism. Examining these variables together helps distinguish altered respiration, energy availability, membrane function, and nutrient utilization.
Membrane potential reflects the electrochemical gradient generated across the inner mitochondrial membrane. Because this gradient supports ATP synthase activity, changes in potential can indicate altered mitochondrial function even when total ATP measurements appear unchanged. Monitoring it alongside oxygen consumption and ATP production helps researchers connect mitochondrial changes with immune-cell activation, differentiation, and inflammatory signaling.
Changes in mitochondrial energy pathways can affect how immune cells activate, develop specialized states, and regulate inflammatory signaling. The relevant outcome is not limited to ATP abundance; nutrient use, respiratory activity, and membrane potential also provide information about the metabolic conditions accompanying these cellular decisions. This makes mitochondrial measurements useful for linking metabolism with immune function.
Microbial invasion can be studied in relation to changes in host oxygen consumption, ATP production, membrane potential, and metabolite use. Comparing these measurements helps identify whether infection is associated with altered respiratory activity, disrupted energy availability, or changed nutrient utilization. Such patterns provide metabolic context for understanding how pathogens influence host-cell function and disease progression.
Researchers can evaluate oxygen consumption, ATP production, membrane potential, and metabolite use as complementary indicators. A practical analysis compares these variables across relevant cellular or infection conditions rather than relying on one measurement. The resulting profile can show whether a change is associated mainly with respiratory activity, energy output, membrane status, or nutrient metabolism.
Bioenergetic measurements can connect mitochondrial dysfunction with weakened immune responses and altered disease behavior. Reduced or changed values across oxygen consumption, ATP production, membrane potential, or metabolite use may identify disrupted host metabolism. In immunology and infection studies, these data help characterize how metabolic changes accompany impaired immunity, inflammatory responses, microbial invasion, or progression of disease.