Neuroscientists draw up a ‘parts list’ covering 133 different types of brain cells

How many different kinds of cells are there in the brain? At least 133 kinds, including two types of neurons not recognized before, according to a pair of studies featured on the cover of this week’s issue of the journal Nature. The “parts list” builds on 15 years of work at Seattle’s Allen Institute, focused on analyzing genetic activity in nearly 24,000 of the 100 million brain cells in the mouse cortex. Each cell type exhibited a different combination of genes that were turned on or off. “This is by far the most comprehensive, most in-depth analysis of any regions… Read More