​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.

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Image: Fluorescently labeled neuronal dendritric ramifications.
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