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Laggera alata extract prevents acetamidophenol-induced liver damage in mice
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- Author:
- No author available
- Journal Title:
- WORLD CHINESE JOURNAL OF DIGESTOLOGY
- Issue:
- 7
- DOI:
- 10.3969/j.issn.1009-3079.2010.07.015
- Key Word:
- 六棱菊;二咖啡酰奎尼酸类化合物;醋氨酚;保肝作用
Abstract： 目的:探讨六棱菊提取物(LAE)对药物性肝损伤的抑制作用.方法:采用Folin Ciocalteu和HPLC方法对LAE的主要成分进行定量分析:通过预防给药探讨LAE对大剂量(1000 mg/kg)醋氨酚引起的小鼠中毒死亡的影响:运用醋氨酚引起的小鼠急性肝损伤模型评价LAE大(200 mg/kg)、中(100 mg/kg)、小(50 mg/kg)剂量对药物性肝损伤的抑制作用.结果:Folin Ciocalteu法测定结果表明LAE的总酚含量为56.5 g GAE/100 g提取物;HPLC分析结果显示LAE的主要成分为是二咖啡酰奎尼酸类化合物,其含量为53.0%.醋氨酚中毒保护试验表明,LAE在100 mg/kg剂量下对大剂量醋氨酚所致小鼠死亡有明显抑制作用.药效评价结果显示:LAE在50、100和200 mg/kg剂量下灌胃给药,均能明显降低肝损伤小鼠血清AST和ALT水平,其中100和200 mg/kg剂量具有显著性影响;病理组织学检测表明,模型组小鼠肝组织呈现以中央静脉为中心的放射状坏死和脂肪变性,LAE大、中、小剂量组小鼠肝损伤均有一定程度的改善.结论:六棱菊对醋氨酚所致的药物性肝损伤具有较强的抑制作用.二咖啡酰奎尼酸类化合物可能是六棱菊保肝作用的主要物质基础.
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