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实验用114只雄性Wistar大鼠,体重63±2 g,随机分成两组,其中1组喂缺Mg饲料(含Mg 80 mg/kg)另一组喂对照饲料(含Mg960mg/kg),大鼠均饮蒸馏水。动脉收缩压和心率采用尾动脉搏动法(tail-cuff)测定。心血管敏感性(CVR)的测定方法是:苯巴比妥钠(30mg/kg)腹腔注射麻醉大鼠,在颈动脉处插一根聚乙烯塑料管并与Statham 23 DB血压测定仪相连,颈静脉内插
114 male Wistar rats weighing 63 ± 2 g were randomly divided into two groups. One group fed with Mg-deficient diet (containing Mg 80 mg / kg) and the other group fed with control diet (containing Mg 960 mg / kg) All drink distilled water. Arterial systolic pressure and heart rate were measured by tail-cuff. Cardiovascular sensitivity (CVR) was measured by intraperitoneal injection of phenobarbital sodium (30 mg / kg) into a polyethylene plastic tube at the carotid artery and connected to a Statham 23 DB blood pressure monitor Intravenous insertion