New Insights Into the Roles of Retinoic Acid Signaling in Nervous System Development and the Establishment of Neurotransmitter Systems

Quite a bit.
Special attention is given to the still poorly understood influence of RA signaling on the neurotransmitter identity of specific neuronal subsets, including catecholaminergic, serotonergic,
glutamatergic, and GABAergic neurons.

https://www.researchgate.net/profile/Elisabeth-Zieger/publication/311568583_New_Insights_Into_the_Roles_of_Retinoic_Acid_Signaling_in_Nervous_System_Development_and_the_Establishment_of_Neurotransmitter_Systems/links/5d42901492851cd04696fae3/New-Insights-Into-the-Roles-of-Retinoic-Acid-Signaling-in-Nervous-System-Development-and-the-Establishment-of-Neurotransmitter-Systems.pdf