Sodium Glucose Linked Transporters
Sodium Glucose Linked Transporters - Related Videos
01:27
Glucose Transporters
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Glucose transporters facilitate the transport of glucose across the cell membrane. In addition to glucose, some glucose transporters can also aid the movement of other hexoses such as fructose, mannose, and galactose. Facilitated diffusion-glucose transporters (GLUTs) are encoded by the solute-linked carrier (SLC) family 2, subfamily A gene family, or SLC2A. The 14 GLUT protein members are distributed into three classes: Class I comprises GLUT1 to GLUT4 and GLUT14. Class II has GLUT5, GLUT7,...
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Monocytes are integral components of the human innate immune system that rely on glycolytic metabolism when activated. We describe a flow cytometry protocol to measure glucose transporter expression and glucose uptake by total monocytes and monocyte subpopulations in fresh whole blood.
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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.
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Preparation of Cross-Linked Sodium Alginate Microspheres with Different Metal Ions Using the Microfluidic Electrospray Technology
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The protocol describes the preparation of sodium alginate microspheres cross-linked with different metal ions using a microfluidic device for drug carrier design. The antimicrobial properties and slow drug release of these microspheres were also investigated.
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This video introduces how to perform an oral glucose tolerance test on a laboratory mouse.
FAQs
The sodium gradient provides the energy needed to move glucose against its concentration gradient. Sodium tends to enter the cell along its electrochemical gradient, and glucose movement is coupled to that ion flow. This indirect energy transfer allows uptake without the transporter directly using ATP, linking membrane ion balance to nutrient transport.
The sodium-potassium ATPase establishes the sodium gradient that powers cotransport. By maintaining the difference in sodium concentration across the membrane, it preserves the driving force for sodium entry and associated glucose uptake. If this gradient cannot be sustained, the energy source for moving glucose against its concentration gradient is reduced.
In the small intestine, these transporters help absorb glucose from dietary nutrients. In the kidney, they reclaim glucose that has already been filtered, reducing its loss and contributing to energy balance. Their shared transport principle therefore supports two distinct physiological tasks: nutrient acquisition and recovery of a valuable circulating fuel.
Epithelial tissues form functional barriers between body compartments, so glucose movement across their cell membranes directly affects absorption and recovery. Transporter activity in these locations helps control how much glucose enters the body from the intestine and how much filtered glucose is retained by the kidney. This makes tissue-specific transporter roles important in physiology.
They influence processes connected to blood glucose levels, including intestinal glucose absorption and renal glucose reclamation. Because these transporters operate in tissues that regulate glucose availability, studying their function can clarify aspects of glucose handling in diabetes research. Their physiological roles also provide a basis for investigating approaches that alter sodium-coupled glucose transport.
Inhibitors are being developed because selectively reducing transporter activity could modify glucose handling in the intestine or kidney. Their development reflects the transporters' roles in dietary glucose absorption, filtered glucose reclamation, and blood glucose regulation. These compounds are also useful within research focused on understanding how sodium-coupled glucose movement contributes to metabolic physiology.
Their activity links a cellular electrochemical gradient to organism-level nutrient management. The sodium gradient, maintained by the sodium-potassium ATPase, drives glucose uptake, while intestinal absorption and renal reclamation determine how glucose is acquired or retained. Together, these processes help explain how membrane transport contributes to energy balance and glucose regulation.