Abstract
Electron tomography of the chemical synapse provides important architectural information regarding the organization of synaptic organelles including synaptic vesicles, Nissl bodies, and early endosomes. Here, we describe methods for the preparation of select murine brain regions for high-pressure freezing, freeze substitution, and EM tomographic analysis of synaptic structures. The method uses fresh brain slices prepared using a vibratome and biopsy punches to collect specific brain regions of interest suitable for subsequent preservation and EM tomographic imaging.
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