Dopamine, in addition to its importance as a precursor of
norepinephrine, is now known to be an important neurotransmitter in
regulating functional activities in a number of major organ systems,
including the central ner- vous system. the cardiovascular system, the
kidney, and the gut. Recent advances in our understanding of the
functional role of dopamine, its mechanism of action and the
pharmacology of dopaminergic agents have occurred on a broad front. The
last few years have witnessed significant progress in the identification
and classification of central and peripheral dopamine receptors and the
factors that affect their responsiveness to inhibitory and stimulatory
ligands. These advances have been paralleled by new insights into the
contribution of alterations in dopaminergic reg- ulation in causing
disease and the utility of dopamine agonists and an- tagonists as
therapeutic modalities. This volume, the first in a series of
publications arising from the annual Smith Kline and French Research
Symposium on New Horizons in Therapeutics, provides a comprehensive
survey of current research on peripheral dopamine receptors and the
physiologic and therapeutic con- sequences of stimulating pre-and
postsynaptic dopamine receptors. Research in dopamine pharmacology
mirrors the remarkable ad- vances that are occurring in the field of
pharmacology at large as a con- sequence of the involvement of an
ever-larger number of scientific dis- ciplines in the study of drug
action.