浙江农业学报

• 动物科学 • 上一篇    下一篇

复方柴芩颗粒对实验性黄曲霉毒素慢性中毒鸭CYP450酶表达的影响

  

  1. (四川农业大学 动物医学院,四川 成都 611130)
  • 出版日期:2016-02-25 发布日期:2016-03-10

Effects of Compound Chai Qin Particles on mRNA expression and protein expression of CYP450 in aflatoxicosis chronic poisoned ducklings#br#

  1. (College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China)
  • Online:2016-02-25 Published:2016-03-10

摘要: 建立肉鸭黄曲霉毒素(AFB1)慢性中毒模型,设立正常组、AFB1模型组、亚硒酸钠组、中药高剂量组、中药中剂量组和中药低剂量组,采用荧光定量PCR(RT-PCR)法和免疫蛋白印迹(Western\|bolt)法检测肝标本中 CYP3A4,CYP1A2,CYP2E1的mRNA和蛋白表达来探讨复方柴芩颗粒对鸭黄曲霉毒素慢性中毒肝脏微粒体细胞色素P450(cytochrome P450,CYP450)酶系CYP3A4,CYP1A2和CYP2E1表达的影响,并借此深入探讨其解毒机制。结果显示,与模型组相比,中药高、中、低3个剂量组用药7,14和21 d后肝脏微粒体细胞色素P450酶系CYP3A4,CYP1A2和CYP2E1的mRNA相对表达量显著降低。与模型组相比,中药高、中、低3个剂量组用药7~14 d,则CYP3A4,CYP1A2和CYP2E1蛋白表达量显著降低;用药21 d后高剂量组3种基因型蛋白表达量显著降低。研究表明,复方柴芩颗粒连续用药1~2周能有效地降低由鸭黄曲霉毒素慢性中毒引起的CYP1A2,CYP2E1,CYP3A4 mRNA相对表达量和蛋白表达量升高的趋势,但随用药时间增加,各组的CYP1A2,CYP2E1,CYP3A4 mRNA相对表达量和蛋白表达量逐渐升高。

关键词: 细胞色素CYP1A2, 细胞色素CYP3A4, 细胞色素CYP2E1, 复方柴芩颗粒, 黄曲霉毒素B1, mRNA表达, 蛋白表达

Abstract: The aflatoxin B1(AFB1) chronic poisoning model of ducklings was set up, and one-day-old ducklings were divided into 6 groups. The real-time fluorescence quantitative PCR and western blot were used to investigate the influence of Compound Chai Qin Particles on the mRNA expression and protein expression of CYP3A4, CYP1A2 and CYP2E1 in treated ducks. The mRNA expressions of CYP3A4, CYP1A2 and CYP2E1 of the high-dose, middle-dose, low-dose groups were significantly lower than those of model group in this experiment. The protein expressions of CYP3A4, CYP1A2 and CYP2E1 of the high-dose, middle-dose, low-dose groups were significantly lower than those of model group in experimental 7th to 14th day. And the protein expressions of CYP3A4, CYP1A2 and CYP2E1 of the high-dose groups were significantly lower than those of model group on 21st day. It was concluded that Compound Chai Qin Particles could effectively decrease mRNA expression and protein expression of CYP1A2, CYP2E1 and CYP3A4 in liver microsomes of AFB1 chronic poisoned ducklings. However, with the medication time extended, the mRNA expression and protein expression of CYP1A2, CYP2E1 and CYP3A4 gradually increased.

Key words: cytochrome CYP 1A2, cytochrome CYP 3A4, cytochrome CYP 2E1, Compound Chai Qin Particles, aflatoxin B1, mRNA expression, protein expression