Triglycerides control neurons in the reward circuit (IMAGE)
Caption
Food is a source of various circulating nutrients, including triglycerides (TG), which are the postprandial (ie after a meal) lipid source. TG can enter the brain, where they act directly on the neurons that release or respond to dopamine (DA). This mechanism is lipoprotein lipase-mediated (LPL) TG hydrolysis and is translated by inhibition of these neurons in the reward system. In rodents when TG act on neurons in the reward system that exerts control over dopamine-dependant behaviours (pleasure from eating, response to psychostimulants, etc.). In humans, postprandial TG variations are narrowly correlated with the way the brain perceived and responds to a dietary stimulus.
Credit
Chloe Berland et al.
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