GABA uptake inhibitor nipecotic acid induced increase of MAP was blocked by GABA A receptor antagonist bicuculline, but not by GABA B antagonist CGP 35348;

• GABAA受体拮抗剂荷包牡丹碱能逆转GABA摄取抑制剂3－哌啶甲酸引起的血压升高，GABAB受体拮抗剂CGP35348则不能；