by Shinshu University Fig. 1. Cerebellar granule cells cause cell death in mice lacking all neurexins 1, 2 and 3. The disappearance of cerebellar granule cells causes the cerebellum to atrophy. Credit: Takeshi Uemura, Shinshu University Neurexin, associated with neurodevelopmental disorders, is an essential molecule for the survival of nerve cells called cerebellar granule cells...