本研究建立同时测定蒙药蓝刺头中7种有机酸类成分含量的方法。采用Waters HSS T3 C18色谱柱(4.6 mm 250 mm,5 m),流动相为乙腈(A)-0.08%三氟乙酸水溶液(B),梯度洗脱,流速1.0 mL/min,检测波长为325 nm,柱温为室温。同时测定蓝刺头中5-咖...本研究建立同时测定蒙药蓝刺头中7种有机酸类成分含量的方法。采用Waters HSS T3 C18色谱柱(4.6 mm 250 mm,5 m),流动相为乙腈(A)-0.08%三氟乙酸水溶液(B),梯度洗脱,流速1.0 mL/min,检测波长为325 nm,柱温为室温。同时测定蓝刺头中5-咖啡酰奎尼酸、绿原酸、咖啡酸、芦丁、3,4-二咖啡酰奎尼酸、3,5-O-二咖啡酰基奎宁酸和4,5-O-二咖啡酰奎宁酸等7个有机酸的含量。5-咖啡酰奎尼酸在0.936~93.6μg/mL、绿原酸在1.021~102.1μg/mL、咖啡酸在0.952~95.2μg/mL、芦丁在0.932~93.2μg/mL、3,4-二咖啡酰奎尼酸在0.928~92.8μg/mL、3,5-O-二咖啡酰基奎宁酸在0.964~96.4μg/mL、4,5-O-二咖啡酰奎宁酸在0.927~92.7μg/mL范围内具有良好的线性关系。7种成分的回收率分别在97.89%~99.67%,RSD分别在1.54%~2.11%,表明回收率良好。采用本方法可同时测定蓝刺头中7个有机酸类成分的含量,具有可行性与专属性。展开更多
Background and Aim: Sarcocephalus latifolius is a medicinal plant commonly used in traditional medicine to treat various diseases. The aim of the present study is to evaluate the hepatoprotective activity of Sarcoceph...Background and Aim: Sarcocephalus latifolius is a medicinal plant commonly used in traditional medicine to treat various diseases. The aim of the present study is to evaluate the hepatoprotective activity of Sarcocephalus latifolius fruits aqueous extract against paracetamol-induced liver damage in rats. Material and Methods: Aqueous extract of Sarcocephalus latifolius fruits at doses of 100, 250 and 500 mg/kg were administered orally to rats with paracetamol-induced hepatotoxicity (1 g/kg). The treatment with the extract and paracetamol lasted 7 days. Silymarin (50 mg/kg) was given as reference control. All tested drugs were administered orally. Results: Our results show that the Sarcocephalus latifolius fruits extract induced a significant reduction (p < 0.05) of serum enzymes alanine aminotransferase (ALAT), aspartate aminotransferase (ASAT), alkaline phosphatase (PAL) and total bilirubin (TB). Then, the extract at the dose of 500 mg/kg showed a better protection (p < 0.001) of hepatocytes with a percentage of protection of 43.59% ± 2.03%;59.43% ± 4.12%;73.29% ± 5.72% and 62.55% ± 7.48% for ALAT, ASAT, PAL and TB, respectively. The histology of livers exposed to paracetamol shows an inflammation of the hepatocytes. In addition, there was a significant alteration of the liver parenchyma. The 500 mg/kg extract showed a resorption of the inflammation. Histopathological examination showed that the extract regenerated paracetamol-induced liver damage. Conclusion: Aqueous extract of Sarcocephalus latifolius fruits has hepatoprotective activity against paracetamol-induced hepatotoxicity in rats. But it would be important to evaluate the activity of aqueous extract of Sarcocephalus latifolius fruits on oxidative stress parameters in vivo in rats. .展开更多
文摘本研究建立同时测定蒙药蓝刺头中7种有机酸类成分含量的方法。采用Waters HSS T3 C18色谱柱(4.6 mm 250 mm,5 m),流动相为乙腈(A)-0.08%三氟乙酸水溶液(B),梯度洗脱,流速1.0 mL/min,检测波长为325 nm,柱温为室温。同时测定蓝刺头中5-咖啡酰奎尼酸、绿原酸、咖啡酸、芦丁、3,4-二咖啡酰奎尼酸、3,5-O-二咖啡酰基奎宁酸和4,5-O-二咖啡酰奎宁酸等7个有机酸的含量。5-咖啡酰奎尼酸在0.936~93.6μg/mL、绿原酸在1.021~102.1μg/mL、咖啡酸在0.952~95.2μg/mL、芦丁在0.932~93.2μg/mL、3,4-二咖啡酰奎尼酸在0.928~92.8μg/mL、3,5-O-二咖啡酰基奎宁酸在0.964~96.4μg/mL、4,5-O-二咖啡酰奎宁酸在0.927~92.7μg/mL范围内具有良好的线性关系。7种成分的回收率分别在97.89%~99.67%,RSD分别在1.54%~2.11%,表明回收率良好。采用本方法可同时测定蓝刺头中7个有机酸类成分的含量,具有可行性与专属性。
文摘Background and Aim: Sarcocephalus latifolius is a medicinal plant commonly used in traditional medicine to treat various diseases. The aim of the present study is to evaluate the hepatoprotective activity of Sarcocephalus latifolius fruits aqueous extract against paracetamol-induced liver damage in rats. Material and Methods: Aqueous extract of Sarcocephalus latifolius fruits at doses of 100, 250 and 500 mg/kg were administered orally to rats with paracetamol-induced hepatotoxicity (1 g/kg). The treatment with the extract and paracetamol lasted 7 days. Silymarin (50 mg/kg) was given as reference control. All tested drugs were administered orally. Results: Our results show that the Sarcocephalus latifolius fruits extract induced a significant reduction (p < 0.05) of serum enzymes alanine aminotransferase (ALAT), aspartate aminotransferase (ASAT), alkaline phosphatase (PAL) and total bilirubin (TB). Then, the extract at the dose of 500 mg/kg showed a better protection (p < 0.001) of hepatocytes with a percentage of protection of 43.59% ± 2.03%;59.43% ± 4.12%;73.29% ± 5.72% and 62.55% ± 7.48% for ALAT, ASAT, PAL and TB, respectively. The histology of livers exposed to paracetamol shows an inflammation of the hepatocytes. In addition, there was a significant alteration of the liver parenchyma. The 500 mg/kg extract showed a resorption of the inflammation. Histopathological examination showed that the extract regenerated paracetamol-induced liver damage. Conclusion: Aqueous extract of Sarcocephalus latifolius fruits has hepatoprotective activity against paracetamol-induced hepatotoxicity in rats. But it would be important to evaluate the activity of aqueous extract of Sarcocephalus latifolius fruits on oxidative stress parameters in vivo in rats. .