Figure 1.

SeNPs dose-dependently induce the generation of Ca²⁺ signals in astrocytes, but not in neurons of various parts of the brain. (A–D) Generation of Ca²⁺ signals in astrocytes (B,D) in response to the application of 0.5 and 5 µg/mL SeNPs, respectively; (A,C) absence of Ca²⁺ signals in neurons. Ca²⁺ signals in neurons and astrocytes in response to SeNPs application in one experiment are presented here.