Stellate Neuron (image) Rockefeller University Share Print E-Mail Caption Acetyl-L-carnitine acts on neurons (pictured here) that release the neurotransmitter glutamate. Researchers believe that, by altering glutamate levels, the molecule affects systems involved in depression. Credit Harold and Margaret Milliken Hatch Laboratory of Neuroendrocrinology at The Rockefeller University Usage Restrictions Image may be used only to illustrate the research described in the accompanying release. Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.