LAGUNA DESIGN / SCIENCE PHOTO LIBRARY LAGUNA DESIGN / SCIENCE PHOTO LIBRARY
Administering dopamine. Conceptual computer artwork of treating Parkinson's disease with dopamine. Dopamine is a very important hormone and neurotransmitter of the central nervous system (CNS). It plays a critical role in the way the brain controls movement, memory and decision making. Underproduction of dopamine results in the movement disorder Parkinson's disease. Here, treatment is represented as an injection of dopamine (blue) directly into a chemical synapse (red) between two nerve cells. In reality, it is administered in an inactive form, but once in the CNS, it is metabolised to dopamine. Dopamine is not administered directly because it is unable to cross the blood-brain barrier.
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