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. 2003 Aug 20;23(20):7659–7669. doi: 10.1523/JNEUROSCI.23-20-07659.2003

Figure 7.

Figure 7.

Postsynaptic mGluR5 immunoreactivity at dopaminergic synapses in the monkey striatum. A, Two perisynaptic gold particles (arrows) are associated with an en passant axosomatic symmetric synapse (arrowheads) established by an axonal process that displays the ultrastructural features of a dopaminergic nigrostriatal terminal. B, C, Examples of perisynaptic labeling for mGluR5 (arrows) at dopaminergic synapses. In B, the TH-positive axonal process (TH+) forms an en passant-type synaptic contact (arrowhead) with a dendrite (den), whereas in C, the TH-positive axon terminal (TH+) is in contact with a spine neck (Sp). Scale bars: A, 0.25 μm; (in B), B, C, 0.25 μm.