How do the brain cells called astrocytes ensure the protection of neurons? By studying the protagonists in the protection and satisfactory functioning of neurons, scientists have found a mechanism that clarifies the role of astrocytes. Crucial to this mechanism, RORalpha protein is revealed as an essential regulator of inflammatory factors. This discovery constitutes a new path for research on novel drugs in the event of cerebral lesions (e.g. neurodegenerative diseases or trauma).