Glucose Depletion
Glucose Depletion - Related Videos
05:52
In Vitro Glucose Depletion Assay: A Fluorescence-Based Method to Quantify Cellular Glucose Uptake via Extracellular Glucose Depletion Measurement
0 Views •
2025
This video demonstrates an in vitro assay to indirectly measure intracellular glucose uptake. The assay uses a fluorescently-labeled glucose analog to establish a correlation between extracellular glucose depletion and intracellular glucose uptake.
03:04
Measurement of Extracellular Fluorescent Glucose Analog Depletion: A Surrogate Measurement Technique to Assess Glucose Uptake in Mouse Organs Ex Vivo
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2025
In this video, we demonstrate an ex vivo technique to measure extracellular glucose analog depletion in harvested mouse organs. It involves incubating the mouse tissue in a solution containing fluorescently-labeled deoxyglucose, which is taken up by the cells. The glucose analog uptake can be indirectly determined by measuring the fluorescence of the incubated medium.
10:35
Extracellular Glucose Depletion as an Indirect Measure of Glucose Uptake in Cells and Tissues Ex Vivo
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Cited by 1 •
2022
Extracellular depletion of fluorescently labeled glucose correlates with glucose uptake and could be used for high-throughput screening of glucose uptake in excised organs and cell cultures.
06:17
Depletion of Specific Cell Populations by Complement Depletion
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Cited by 15 •
2010
To effectively study the function of immune cell populations their purification is often required. Complement depletion is a fast and inexpensive technique for the isolation of immune cell populations with high purity.
02:23
Oral Glucose Tolerance Test (OGTT): Measuring Glucose Metabolism in Mice
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2023
This video introduces how to perform an oral glucose tolerance test on a laboratory mouse.
FAQs
During glucose depletion, reduced glucose availability lowers glycolytic flux, limiting the pathway’s contribution to energy production and biosynthetic precursor supply. Cells can compensate by mobilizing glycogen, increasing gluconeogenesis, or shifting toward alternative carbon sources. Which response dominates depends on the cellular metabolic program, so the state provides a way to examine how carbon flow is redirected when glucose is scarce.
Energy-conservation pathways become important because scarce glucose threatens both cellular energy production and biosynthetic activity. Their activation links nutrient sensing to metabolic regulation: the cell detects reduced carbon availability and adjusts pathway use rather than maintaining the same glycolytic state. Studying this transition helps reveal how biochemical systems balance energy preservation with continued macromolecule synthesis under changing nutrient conditions.
Mobilizing glycogen and increasing gluconeogenesis represent different compensatory strategies. Glycogen mobilization draws on stored carbohydrate, whereas gluconeogenesis increases production of glucose from available metabolic resources. Examining which response accompanies glucose depletion can distinguish storage utilization from endogenous glucose generation and clarify how cells preserve metabolic function when external glucose no longer supports normal pathway activity.
Shifting to alternative carbon sources changes more than the immediate energy supply. It can also alter biosynthetic activity, growth, and survival, making glucose depletion useful for comparing cellular phenotypes. In biochemistry experiments, observing these outcomes alongside pathway responses can show whether a cell mainly conserves energy, reroutes carbon, or maintains macromolecule synthesis despite reduced glucose availability.
To study glucose depletion experimentally, researchers can impose controlled glucose withdrawal and compare the resulting cells with cells maintained under glucose-replete conditions. The comparison should focus on pathway responses and cellular outcomes rather than glucose concentration alone. This design makes it possible to evaluate how altered availability affects metabolic regulation, growth, survival, and macromolecule synthesis.
Useful outcomes include changes in pathway responses, growth, survival, and macromolecule synthesis. Together, these measurements connect metabolic regulation with cellular performance: pathway changes indicate adaptation, while growth and survival reveal the broader consequence of reduced glucose. Macromolecule synthesis further shows whether limited carbon availability affects biosynthetic capacity, not only energy production.
Phenotypic comparison reveals whether cells respond similarly or differently to the same nutrient limitation. Because glucose depletion can trigger glycogen mobilization, gluconeogenesis, alternative carbon use, or energy-conservation pathways, distinct phenotypes may reflect different metabolic adaptations. Such comparisons help biochemists connect observable growth or survival differences with underlying regulation of carbon flow.
The condition provides a controlled way to probe nutrient sensing and metabolic regulation as linked biochemical processes. It can reveal how changing glucose availability reorganizes carbon use, influences biosynthetic activity, and shapes cellular adaptation. This makes the approach relevant for studying pathway coordination, energy supply, and the relationship between nutrient conditions and macromolecule production.