丹参饮不同提取工艺样品对急性心肌缺血模型小鼠的保护作用
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篇名: 丹参饮不同提取工艺样品对急性心肌缺血模型小鼠的保护作用
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摘要: 目的:观察丹参饮不同提取工艺样品对急性心肌缺血模型小鼠的保护作用。方法:取96只小鼠随机分为空白对照(生理盐水)组、模型(生理盐水)组、阳性药物[复方丹参片,4.6 mg(生药)/(kg·d)]组和水提液、超临界CO2萃取物及超临界CO2萃取物+药渣水提液的高、中、低剂量[24、12、6 mg(生药)/(kg·d)]组,共12组,每组8只,ig给药,每天1次。第6天给药30 min 后,除空白对照组外其余各组小鼠均按20 mg/kg ih 异丙肾上腺素复制急性心肌缺血模型,每天1次,连续3 d。观察各组小鼠心电图ST段的变化,快速断头后观察各组小鼠张口呼吸次数及呼吸持续时间,测定血清中肌酸激酶(CK)、乳酸脱氢酶(LDH)的活性。结果:与空白对照组比较,模型组小鼠心电图ST段和血清中CK、LDH活性升高,断头后张口呼吸次数减少、呼吸持续时间缩短(P<0.01);与模型组比较,各给药组上述指标均得到改善(P<0.01),且与药物质量浓度呈正相关;超临界CO2萃取物+药渣水提液组各指标与空白对照组小鼠最为接近。结论:丹参饮不同提取工艺的样品对急性心肌缺血小鼠均具有一定的保护作用,且以超临界CO2萃取物+药渣水提液样品的保护作用最强。
ABSTRACT: OBJECTIVE: To observe the protective effect of different extraction samples from Salvia miltiorrhiza decoction on acute myocardial ischemia model mice. METHODS: 96 mice were randomized into blank control group (normal saline), model group (normal saline), positive drug group [Compound Salvia miltiorrhiza tablet, 4.6 mg (crude drug)/(kg·d)], high-dose, medium-dose and low-dose groups of water extract, supercritical CO2 extract and supercritical CO2 extract+dregs water extract [24, 12, 6 mg (crude drug)/(kg·d)], with 8 mice in each group, 12 groups in total. They were given medicine intragastrically once a day. On sixth day, 30 min after giving drugs, those groups were given isoprenaline 20 mg/kg, ih, to induce myocardial ischemia model except for blank control group, once a day, for consecutive 3 d. Electrocardiogram ST segment variation of mice were observed. The times and duration of buccal respiration were observed after rapid decapitation, and the activities of CK and LDH in serum were determined. RESULTS: Compared with blank control group, electrocardiogram ST segment and the activity of CK and LDH increased in model group, while the times and duration of buccal respiration after rapid decapitation reduced (P<0.01); compared with model group, above indicators of medication groups had been improved (P<0.01), and were positively correlated to drug concentration; the indicators of supercritical CO2 extract+dregs water extract group were most close to those of blank control group. CONCLUSIONS: Different extraction samples from Saliva miltiorrhiza decoction all have protective effect on acute myocardial ischemia model mice, and the protective effect of supercritical CO2 extracting+dregs water extracting sample of Salvia Miltiorrhiza decoction is best.
期刊: 2016年第27卷第7期
作者: 舒海燕,杨仕林
AUTHORS: SHU Haiyan,YANG Shilin
关键字: 丹参饮;心肌缺血;超临界CO2萃取物;药渣水提液;保护作用;小鼠
KEYWORDS: Salvia miltiorrhiza decoction; Myocardial ischemia; Supercritical CO2 extract; Dregs water extract; Protective effect; Mice
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