Microglia affect the density of neuronal connections. Microglial cells (stained in green), the immune cells of the mouse brain, send branches into areas with many neuronal connections (stained blue).
thus damaging vulnerable neuron types. These effects range from the acceleration of neurodegeneration caused by mutant SOD1 acting in astrocytes and microglia to the direct production of ...
“Together, these results suggest that microglia are being activated by human neuron–produced APOE4 and, in turn, are potentially helping form the misfolded protein aggregates we see in Alzheimer’s,” ...