One of the reasons that cause a lack of dopamine comes from the activity of the enzyme Mono amines sabi oxidation degradation in the brain that Act among neurotransmitter amines one village.
Reason for the lack of dopamine from the activity of the enzyme mono amine oxidase B in the brain that acts as a neurotransmitter degradation with an amine group.
One reason that caused the lack of dopamine from the enzyme activity of mono amine oxidase B in the brain that was decomposed with the amine neurotransmitters, one group.