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.
Budipine and Other Glutamate Blockers. A number of experimental drugs are being investigated for Parkinsons disease because they block the actions of glutamate, an amino acid that is a particularly potent nerve cell killer. Some of these drugs block a receptor group to glutamate called N-methyl-D-aspartate (NMDA).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.