Outline abnormalities of four biochemical/neurotransmitters that are involved in the cause of tourette's disorder?

I. Dopamine abnormalities
A. Excess dopamine levels in the brain
B. Dysregulation of dopamine receptors
C. Dysfunction in dopamine transporters

II. Serotonin abnormalities
A. Low levels of serotonin in the brain
B. Imbalance in serotonin receptors
C. Impaired serotonin synthesis and metabolism

III. Glutamate abnormalities
A. Dysregulation of glutamate receptors
B. Excessive glutamate release in the brain
C. Dysfunction in glutamate transporters

IV. GABA abnormalities
A. Reduced GABA levels in the brain
B. Imbalance in GABA receptors
C. Impaired GABAergic neurotransmission