Mapping the Brain’s Cellular Universe: A New Atlas Integrates Form, Function, and Genetics
A landmark study has produced the first quantitative, three-dimensional atlas of cell type density distributions in the mouse brain that integrates transcriptomic, morphological, and electrophysiological features. This resource addresses a critical gap, as existing atlases lack comprehensive spatial data linking these three fundamental properties of neuronal identity. The team began by generating a transcriptomic atlas, scaling regional density estimates from brain slices using cell counts and anatomical dimensions. For densely packed regions like the cerebellum, they applied sophisticated voxel-wise corrections based on Nissl staining intensity to refine the estimates.
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