吴俊芳*, 刘天培
Jun-Fang Wu*, Tian-Pei Liu
摘要: 双侧颈总动脉及左侧椎动脉结扎造成兔不完全性脑缺血。Ber在体外能显著抑制胶原, ADP和AA诱导的脑缺血兔血小板聚集, IC50分别为0.15, 0.46和0.51 mg·mL-1。兔脑缺血30 min后, iv Ber 5 mg·kg-1能使胶原诱导的血小板聚集程度降低; 而iv Ber 25, 或50 mg·kg-1, 90 min后, 可使胶原、ADP和AA诱导的血小板聚集程度明显降低。Ber能显著降低脑缺血兔TXB2的血浆水平, 但6-酮前列腺素F1α变化不明显。提示Ber致血浆血栓素B2水平下降是其抗脑缺血作用机制之一。
Supporting: *Present Address: Department of Pharmacology, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050