Accurate control of dopamine levels and/or the resulting dopamine-receptor interaction is essential for brain function. Indeed, several human neurological and psychiatric disorders are characterized by dysfunctions of the dopaminergic system. Dopamine has been reported to exert either protective or toxic effects on neurons, yet it is unclear whether these effects are receptor-dependent and, if so, which dopamine receptor could be involved. The D-2 dopamine receptor occupies a privileged position because its signalling might be neuroprotective in human diseases, such as Parkinson's disease, ischaemia and epilepsy. Unravelling the role of D-2 receptors in neuronal death and survival might be central to understanding the mechanisms that underlie several neuropathologies.
机构:
Columbia Univ, Dept Pharmacol, New York, NY 10032 USAColumbia Univ, Dept Psychiat, New York, NY 10032 USA
Desteno, D. A.
Schmauss, C.
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机构:
Columbia Univ, Dept Psychiat, New York, NY 10032 USA
New York State Psychiat Inst & Hosp, Div Mol Therapeut, New York, NY 10032 USAColumbia Univ, Dept Psychiat, New York, NY 10032 USA