“We found that lactate stimulates synaptic activity-dependent genes in the short-term and genes involved in regulating neuronal excitability in the long-term,” explains the first author of the paper Michael Margineanu, a KAUST Master’s student.
Study illustrates the links between brain energy metabolism and neuronal activity.
A genome-wide study led by Dean Pierre Magistretti sheds light on the mechanisms through which lactate regulates long-term memory formation and neuroprotection.
The breakdown of sugar in non-neuronal brain cells, called astrocytes, produces lactate, which gets shuttled to neurons as a source of energy. This lactate not only supports the energy demands of neurons, but also rapidly and transiently activates multiple genes that modulate neuronal activity and regulate brain function.
