School of Medicine, 1 Hikarigaoka, Fukushima 960- 1295
Japan
Review Article
Are D-Neurons and Trace Amine-Associated Receptor, Type 1 Involved in Mesolimbic Dopamine Hyperactivity of Schizophrenia?
Author(s): Keiko IkemotoKeiko Ikemoto
Although dopamine (DA) dysfunction is a well-known hypothesis for etiology of schizophrenia, molecular basis of mesolimbic DA hyperactivity has not yet been clarified. To explain this, modulating function of trace amines on DA neurotransmission and the decreased number of striatal D-neurons, trace amine-producing neurons, were considered. Notably, Trace Amine-Associated Receptor, Type 1 (TAAR1), a subtype of trace amine receptors, has a large number of ligands, including tyramine, β-phenylethylamine and methamphetamine that influence on human mental state, and is now regarded as a target receptor for novel neuroleptics. Reduced stimulation of TAAR1 on DA neurons in the midbrain ventral tegmental area (VTA) has been revealed to increase firing frequency of VTA DA neurons. The author and her colleagues reported the decrease of D-neurons in the striatum and nucleus accumbens of post.. Read More»
DOI:
10.4172/2161-0444.1000111
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