Extended Data Fig. 2.
I-S1 is uniformly taken up by all brain regions. Mice were given an injection of I-S1 (RayBiotech) and olfactory bulb, whole brain, and blood were collected 10 min later. Brains were dissected into the 10 regions shown. One-way ANOVA with brain regions as the independent variable showed a trend for differences (p = 0.09) and post-hoc multiple comparisons tests showed no differences among the brain regions. N = 11 mice. FCtx =frontal cortex, PCtx = parietal cortex, OCtx = occipital cortex.