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. 2020 Jul 30;14:31. doi: 10.3389/fnana.2020.00031

FIGURE 4.

FIGURE 4

VIM-IR astrocytes display diverse morphological features. (A) Two adjacent VIM-IR astrocyte cell somas (arrowheads) displaying a twin cell morphology were commonly observed in all human brain regions examined. (B) In the caudate nucleus, we observed long bundles of parallel VIM-IR fibers (arrowheads) of no immediately discernable cell origin or target, but which often received contacts from neighboring VIM-IR astrocytes. (C) Some VIM-IR astrocytes extended parallel projections (arrowheads) which may be the origin of the fiber bundles illustrated in (C) and which appear (black outline) from outside of the z-plane of the section, suggesting that VIM-IR astrocytes contact distal targets. Scale bars = 50 μm.