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Effect of dexamethasone,anisodamine and rhubarb therapy on rats with acute pancreatitis
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作者 yang zheng'an Ji Zongzheng Wang Zhidong 《Journal of Medical Colleges of PLA(China)》 CAS 2009年第3期155-160,共6页
Objective:To investigate the therapeutic effects of dexamethasone,anisodamine and rhubarb(DAR) on endotoxin,tumor necrosis factor-α(TNF-α),interleukin-6(IL-6),and pancreatic damage in rat models of acute pancreatiti... Objective:To investigate the therapeutic effects of dexamethasone,anisodamine and rhubarb(DAR) on endotoxin,tumor necrosis factor-α(TNF-α),interleukin-6(IL-6),and pancreatic damage in rat models of acute pancreatitis(AP).Methods:The AP rat models were prepared and randomly assigned to AP group(n=10) and DAR group(n=10),while other healthy rats were assigned to the sham-operated group(n=10).The rats were euthanized at 6 h after operation,and then the serum levels of endotoxin,TNF-α,IL-6 and histology of pancreas were determined as the indexes of therapeutic effects.Results:At 6 h after operation,serum levels of endotoxin,TNF-α and IL-6,and pancreatic damage were significantly increased in AP group compared with those in sham-operated group(P<0.01).Compared with the AP group,DAR therapy remarkably attenuated the endotoxin,TNF-α,IL-6 levels and reduced pancreatic damage(P<0.05).Conclusion:The inhibition of pancreatic damage by DAR in rats with AP might contribute,in part at least,to the amelioration of pancreatic inflammation.The present study provides beneficial evidence that DAR may be useful in the treatment of AP model of rats. 展开更多
关键词 Acute pancreatitis DEXAMETHASONE ANISODAMINE RHUBARB TNF-Α
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高效液相色谱法与pH示差法测定紫荚豌豆花青素含量的比较 被引量:8
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作者 刘芳芳 向成钢 +5 位作者 张宏 徐加莲 刘琼枝 赵凯 杨正安 韩曙 《食品科技》 CAS 北大核心 2022年第1期298-303,共6页
目的:采用高效液相色谱法(High performance liquid chromatography,HLPC)测定不同豌豆品种的花青素单体及含量,并与pH示差法测定结果进行了比较,旨在研究紫荚豌豆花青素定量分析方法的差异及其花青素的种类及功能。方法:紫荚豌豆以乙... 目的:采用高效液相色谱法(High performance liquid chromatography,HLPC)测定不同豌豆品种的花青素单体及含量,并与pH示差法测定结果进行了比较,旨在研究紫荚豌豆花青素定量分析方法的差异及其花青素的种类及功能。方法:紫荚豌豆以乙醇和盐酸作为萃取剂,采用安捷伦1260高效液相色谱仪进行测定,以10%的甲酸溶液、10%的甲酸甲醇溶液为流动相进行梯度洗脱,在波长520 nm的条件下检测紫荚豌豆花青素含量。pH示差法使用紫外分光光度计,在缓冲液pH值为1.0和4.5,30 ℃水浴60 min,波长为520 nm条件下测定花青素总含量。结果:利用高效液相色谱法测定紫荚豌豆的花色苷含量和种类,紫荚豌豆中含有飞燕草色素和矢车菊色素这2种花色苷,其中飞燕草色素含量显著高于矢车菊色素。利用紫外分光光度计检测总花青素,T0183的花青素含量最高。结论:相较于pH示差法测定紫荚豌豆花色苷总含量的结果,高效液相色谱法的测定含量更低,两者间的差异可能与紫荚豌豆中花色苷的种类和含量、HPLC法和pH示差法的花色苷标准品的选择以及pH示差法仪器准确度较低等相关。文章采用高效液相色谱法和pH示差法相结合的方式进行紫荚豌豆花青素定量分析,提高了花青素检测的稳定性与准确性。 展开更多
关键词 紫荚豌豆 花色苷 高效液相色谱法(HPLC法) PH示差法
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