“Moreover, since DAO also metabolises other D-amino acids,1 D-serine is not the only substrate that might be affected by an increase in DAO activity.”
“… DAO … D-serine and, other things being equal, contribute to a reduced synaptic availability of D-serine, potentially impairing NMDAR function.1 As such, our findings … synthesis by serine racemase,6,9 and its release and reuptake.10 Alterations in these processes could counteract – or exacerbate – enhanced DAO activity.”