Research ArticleResearch Article: New Research, Disorders of the Nervous System Georgia Buscaglia, Kyle R. Northington, Jeffrey K. Moore and Emily Anne Bates eNeuro 17 March 2020, 7 (2) ENEURO.0045-20.2020; DOI: https://doi.org/10.1523/ENEURO.0045-20.2020 Abstract Newly born neurons express high levels of TUBA1A α-tubulin to assemble microtubules for neurite extension and to provide tracks for intracellular transport. In the adult brain, Tuba1a expression decreases dramatically.