Fig. 5.
Immunoreactivity for mGluR2/3 (A), mGluR7a (B), and mGluR7b (C) in CA3 stratum lucidum. Axon bundle-like profiles are immunopositive for mGluR2/3, whereas punctate decorations of dendrites are immunopositive for mGluR7a and mGluR7b in stratum lucidum (Lu). The pyramidal cell layer (Py) is devoid of immunoreactivity. Scale bar, 25 μm.