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本研究采用离体大鼠肺动脉环，借助特异性一氧化氮（ＮＯ）合酶（ＮＯＳ）抑制剂ＬＮＡＭＥ研究川芎嗪（ＬＴ）舒血管作用机制，为ＬＴ在临床上更为广泛的应用提供理论依据。材料与方法 雄性Ｗｉｓｔａｒ大鼠重１８０～２６０ｇ，断头处死，速开胸取心肺组织置０℃Ｋｒｅｂ?
In this study, rat pulmonary artery rings were used to study the vasorelaxation mechanism of tetramethylpyrazine (LT) with the help of specific nitric oxide synthase (NOS) inhibitor L NAME, which is a more widely used clinical application of LT. Provide theoretical basis. Materials and Methods Male Wistar rats weighing 180-260g were sacrificed by decapitation. Cardiopulmonary tissue at 0°CKreb was obtained by rapid thoracotomy.