Figure 3.

Effects of muscimol concentration on ³⁶Cl⁻ uptake by membrane vesicles prepared from the cerebral cortex of rats in estrus, on day 19 of pregnancy, or 2 days after delivery. Net uptake indicates the influx of ³⁶Cl⁻ (nmol/mg of protein) in 5 s induced by muscimol at 1–50 μM (basal uptake was subtracted from all values). Data are means ± SEM from 4–7 different experiments, each performed with two rats per group. Basal ³⁶Cl⁻ uptake values (nmol/mg of protein) were 11.2 ± 0.4 (estrus), 10.8 ± 0.5 (day 19 of pregnancy), and 11.7 ± 0.6 (2 days after delivery). ∗, P < 0.05 vs. corresponding estrus value.