Co-localization of neurotensin-like immunoreactivity and 3H-glycine uptake system in sustained amacrine cells of turtle retina

Amacrine cells are axonless intrinsic neurones of the vertebrate retina which have cell bodies in the proximal inner nuclear layer and processes contributing to the synaptic network of the inner plexiform layer. They receive input from bipolar, interplexiform and other amacrine cells, and synapse onto these and ganglion cells1,2. Amino acid and monoamine transmitters are found in most retinal neurones3, but peptide transmitters are exclusively …