Distribution of GABA Receptors in the Rat Cerebellum

Abstract
GABA receptor distribution in the cerebellum is not homogeneous. In comparison with detergent-treated membranes from the whole tissue the number of [3H]muscimol binding sites/mg protein (Bmax) is about doubled in preparations enriched in large fragments of the cerebellar glomeruli, and it is about 1/3 in the dissected deep nuclei. The apparent affinity (Kd) is similar in the different preparations. Heterogeneity may exist in cerebellar GABA receptors and/or their control.