Publication

In vivo real-time metabolic studies in mice at physiological concentrations following 1-13C lactate injection

Arnaud Comment
2012
Posters

Abstract

The real-time metabolic transformation of lactate in the mouse head was monitored following the injection of hyperpolarized 1-13C lactate at physiological doses. The results were compared with metabolic studies performed with hyperpolarized 1-13C pyruvate at similar blood concentration. From the observation that the lactate to alanine ratio was nearly identical following both the pyruvate and the lactate injections, we concluded that the substrate and its metabolites can be detected in real time at physiological concentrations after the injection of lactate.

Official source

https://infoscience.epfl.ch/entities/publication/540467ee-823f-46dd-8982-418f49aaeaaa

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Arnaud Comment
2012
Posters

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/540467ee-823f-46dd-8982-418f49aaeaaa

About this result

Related concepts (25)

Oxidative phosphorylation

Oxidative phosphorylation (UK ɒkˈsɪd.ə.tɪv, US ˈɑːk.sɪˌdeɪ.tɪv ) or electron transport-linked phosphorylation or terminal oxidation is the metabolic pathway in which cells use enzymes to oxidize nutrients, thereby releasing chemical energy in order to produce adenosine triphosphate (ATP). In eukaryotes, this takes place inside mitochondria. Almost all aerobic organisms carry out oxidative phosphorylation. This pathway is so pervasive because it releases more energy than alternative fermentation processes such as anaerobic glycolysis.

Blood plasma

Blood plasma is a light amber-colored liquid component of blood in which blood cells are absent, but which contains proteins and other constituents of whole blood in suspension. It makes up about 55% of the body's total blood volume. It is the intravascular part of extracellular fluid (all body fluid outside cells). It is mostly water (up to 95% by volume), and contains important dissolved proteins (6–8%; e.g., serum albumins, globulins, and fibrinogen), glucose, clotting factors, electrolytes (Na+, Ca2+, Mg2+, , Cl−, etc.

Metabolic pathway

In biochemistry, a metabolic pathway is a linked series of chemical reactions occurring within a cell. The reactants, products, and intermediates of an enzymatic reaction are known as metabolites, which are modified by a sequence of chemical reactions catalyzed by enzymes. In most cases of a metabolic pathway, the product of one enzyme acts as the substrate for the next. However, side products are considered waste and removed from the cell. These enzymes often require dietary minerals, vitamins, and other cofactors to function.

Related publications (2)

In vivo real-time metabolic studies in mice at physiological concentrations following 1-13C lactate injection

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