中国康复理论与实践Issue(2)：141-145,5.DOI:10.3969/j.issn.1006-9771.2016.02.004
内皮素A受体拮抗剂BQ-123对蛛网膜下腔出血大鼠学习记忆能力及海马区神经细胞自噬的影响
Effects of Endothelin A Receptor Antagonist BQ-123 on Learning and Memory Ability and Neurons Autophagy in Hippocampus in Rats with Subarachnoid Hemorrhage
摘要
Abstract
Objective To investigate the effect of BQ-123 on the ability of learning and memory and nerve cell autophagy in hippocam-pus in rats with subarachnoid hemorrhage (SAH). Methods 72 male Sprague-Dawley rats were randomly divided into sham group, SAH model group (SAH group) and BQ-123 group with 24 rats in each group. SAH model was established by injecting the autologous blood into cisterna magna twice. The sham group was not injected blood. BQ-123 group received intracerebroventricular injection with BQ-123 18μg 30 minutes before modeling. 6, 24, 72 and 144 hours after modeling, the passive avoidance latency (PAL) and active avoidance reaction rate (AARR) were tested with Shutter Box Test, the nerve cell morphological changes of hippocampus were observed with HE staining, and the expressions of Beclin-1 and LC3-II were detected with immunohistochemical staining. Results Compared with the sham group, the PAL pro-longed, the AARR decreased (P<0.05), the nerve cells in the hippocampus reduced (P<0.05), and the expressions of Beclin-1 and LC3-II in-creased (P<0.05) in SAH group. Compared with SAH group, PAL shortened (P<0.05), AARR increased (P<0.05), the nerve cells in the hip-pocampus increased (P<0.05), and the expressions of Beclin-1 and LC3-II increased (P<0.05) in BQ-123 group. Conclusion BQ-123 can promote the recovery of learning and memory ability, which may relate to the activation of nerve cell autophagy in the hippocampus.关键词
蛛网膜下腔出血/BQ-123/学习记忆/自噬/海马/大鼠Key words
subarachnoid hemorrhage/BQ-123/learning and memory/autophagy/hippocampus/rats分类
医药卫生引用本文复制引用
刘俊杰,赵旭,赵雅宁,李建民,徐继伟..内皮素A受体拮抗剂BQ-123对蛛网膜下腔出血大鼠学习记忆能力及海马区神经细胞自噬的影响[J].中国康复理论与实践,2016,(2):141-145,5.基金项目
河北省重大医学课题(No.ZD2013093)。 （No.ZD2013093）
