Figure 2.

The uptake of [³H]PMPA and D-[¹⁴C]mannitol into the different CNS regions measured against perfusion time. Data at each time point represents mean ± S.E.M., n = 3–8. When the uptake of [³H]PMPA was significantly greater than that for D-[¹⁴C]mannitol the level of significance is indicated. Elsewhere there was no significant difference between [³H]PMPA and D-[¹⁴C]mannitol in that tissue compartment at that time point.