However, GABAB receptors are located at both pre- and postsynaptic sites of symmetric, as well as asymmetric synapses (putative excitatory synapses).

• 功能学研究进一步揭示，激活苍白球突触前膜GABA(下标 B)自身和异源性受体可分别减少GABA和谷氨酸释放；