The atmosphere is quite dusty, giving the Martian sky a light brown or orange-red color when seen from the surface; data from the Mars Exploration Rovers indicate that suspended dust particles of roughly 1.5 micrometres diameter.
Glutamate is a powerful excitatory neurotransmitter that is released by nerve cells in the brain. It is responsible for sending signals between nerve cells, and under normal conditions it plays an important role in learning and memory.
For some time now, experimental drugs have been investigated because they block the actions of glutamic acid (glutamate). Following is a very brief overview of glutamate toxicity, some of drugs being designed to overcome glutamate toxicity, and disease conditions that drug manufacturers hope to ameliorate.abapentin is thought to decrease the production of glutamate. Glutamate is an excitatory amino acid in the brain. It acts as the major excitory neurotransmitter in the central nervous system. Glutamate, in excessive amounts, is toxic to motor neurons.