Publication

Cerebral Glucose Transport and Homeostasis

2012
Book Chapters

Abstract

Cerebral glucose homeostasis is maintained by the equilibrium between glucose transport across the blood-brain-barrier (BBB), which occurs through facilitative carriers, and glucose consumption mainly initiated by hexokinase phosphorylation. Glucose concentrations can be quantified non invasively by nuclear magnetic resonance (NMR) spectroscopy and such measurements, through appropriate mathematical modelling, allow to determine the kinetics of glucose transport and metabolism. This chapter summarizes the insights gained into brain glucose transport from the measurement of the brain glucose concentration, particularly reviewing state of the art NMR methods for non invasive determination of glucose homeostasis and discussing the employment of mathematical models of glucose transport.

Official source

https://infoscience.epfl.ch/entities/publication/5328dddb-f844-45f5-ad61-23701b24adc8

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2012
Book Chapters

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/5328dddb-f844-45f5-ad61-23701b24adc8

About this result

Related concepts (32)

Glucose

Glucose is a sugar with the molecular formula . Glucose is overall the most abundant monosaccharide, a subcategory of carbohydrates. Glucose is mainly made by plants and most algae during photosynthesis from water and carbon dioxide, using energy from sunlight, where it is used to make cellulose in cell walls, the most abundant carbohydrate in the world. In energy metabolism, glucose is the most important source of energy in all organisms. Glucose for metabolism is stored as a polymer, in plants mainly as starch and amylopectin, and in animals as glycogen.

Blood–brain barrier

The blood–brain barrier (BBB) is a highly selective semipermeable border of endothelial cells that prevents solutes in the circulating blood from non-selectively crossing into the extracellular fluid of the central nervous system where neurons reside. The blood–brain barrier is formed by endothelial cells of the capillary wall, astrocyte end-feet ensheathing the capillary, and pericytes embedded in the capillary basement membrane.

Nuclear magnetic resonance

Nuclear magnetic resonance (NMR) is a physical phenomenon in which nuclei in a strong constant magnetic field are perturbed by a weak oscillating magnetic field (in the near field) and respond by producing an electromagnetic signal with a frequency characteristic of the magnetic field at the nucleus. This process occurs near resonance, when the oscillation frequency matches the intrinsic frequency of the nuclei, which depends on the strength of the static magnetic field, the chemical environment, and the magnetic properties of the isotope involved; in practical applications with static magnetic fields up to ca.

Related publications (32)

Cerebral Glucose Transport and Homeostasis

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