Intracardiac neuron (ICN) samples were collected from a female rat heart using laser capture microdissection. We acquired transcriptomics data for 154 genes from the 151 samples we collected. Images of sampled neurons allow for 3D reconstruction of data.

We developed an approach to appreciating the 3D organization of the ICN while at the same time permitting single cell transcriptomics and connectomics. Through serial cryostat sectioning of a cryopreserved heart with imaging of serially collected and stained sections, it is possible to reconstruct the 3D context and collect single neurons using laser microdissection. The transcriptional profiles of these isolated neurons can be determined down to single cell resolution and mapped back into the 3D context generated by stacking the serial images.
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