Neuropharmacology of Dopamine Receptors : Implications in Neuropsychiatric Diseases

Frank I. Tarazi


There has been an extraordinary recent accumulation of information concerning the neurobiology and neuropharmacology of dopamine (DA) receptors in the mammalian central nervous system. Many new DA molecular entities have been cloned, their gene, peptide sequences and structures have been identified, their anatomical distributions in the mammalian brain described, and their pharmacology characterized. Progress has been made toward developing selective ligands and drug-candidates for different DA receptors. The new discoveries have greatly stimulated preclinical and clinical studies to explore the neuropharmacology of DA receptors and their implications in the neuropathophysiology of different neuropsychiatric diseases including schizophrenia, Parkinson’s disease and attention- deficit hyperactivity disorder. Accordingly, it seems timely to review the salient aspects of this specialized area of preclinical neuropharmacology and its relevance to clinical neuropsychiatry. 


Antipsychotics, ADHD, basal ganglia, dopamine receptors, Parkinson’s disease, schizophrenia

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Sultan Qaboos University Medical Journal, College of Medicine and Health Sciences, Sultan Qaboos University, PO Box 35, Postal Code 123, Al-Khod, Muscat, Oman

ISSN (Print edition): 2075-051X ISSN (Internet edition): 2075-0528

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