畜牧兽医学报 ›› 2014, Vol. 45 ›› Issue (7): 1189-1195.doi: 10.11843/j.issn.0366-6964.2014.07.023

• 临床兽医 • 上一篇    下一篇

中药治疗呼吸道疾病临床发病猪肺组织中PDE4、IL-6和TNF-α的变化

张美华1,张倩1,孟乐2,李佳1,周双海3,姜代勋1*,陈武1*   

  1. (1.北京农学院兽医学(中医药)北京市重点实验室,北京 102206;2.天津市宁河原种猪场,天津 301504;3.北京农学院动物科学技术学院,北京 102206)
  • 收稿日期:2013-11-26 出版日期:2014-07-23 发布日期:2014-07-23
  • 通讯作者: 陈武(1966-),陕西周至人,教授,主要从事中西兽医结合研究,E-mail:tcvmchenwu@hotmail.com; 姜代勋(1978-),山东青岛人,副教授,主要从事中药抗炎机制研究, E-mail:dx_tcvm@126.com
  • 作者简介:张美华(1987-),女,河南商丘人,硕士,主要从事中西结合临床兽医学研究,E-mail:zhangmeihua0702889@163.com
  • 基金资助:

    北京市属高等学校人才强教计划项目(PHR201107134);北京市自然科学基金项目(6112007)

Variety of Phosphodiesterase4 and IL-6,TNF-α in Lung of Clinical Porcine Respiratory Disease under the Treatment of Chinese Herbal Medicine

ZHANG Mei-hua1,ZHANG Qian1,MENG Le2,LI Jia1,ZHOU Shuang-hai3,JIANG Dai-xun1*,CHEN Wu1*   

  1. (1.Beijing Key Laboratory of Traditional Chinese Veterinary Medicine,Beijing 102206,China;2.Tianjin Ninghe Breeding Pig Farm,Tianjin 301504,China;3.Animal Science and Technology College,Beijing University of Agriculture,Beijing 102206,China)
  • Received:2013-11-26 Online:2014-07-23 Published:2014-07-23

摘要:

观察猪呼吸道疾病(PRDC)肺组织磷酸二酯酶4(PDE4)活性及PDE4各亚型表达和白介素-6(IL-6)、肿瘤坏死因子-α(TNF-α)含量的变化及自拟中药方对其的影响与疗效,为呼吸道炎症的病理机制与中药防治积累资料。选取呼吸道病猪随机分为患病组和治疗组,正常猪为对照组,治疗组灌服由芦根、黄芪、白芍、甘草组成的生药浓度1 g•mL-1的中药,1.5 mL•kg-1,每日2次,连续给药10 d。停药后检测各组猪外周血白细胞数目,取肺组织HPLC检测PDE4活性,Real-time PCR法测定PDE4各亚型相对表达量,ELISA试剂盒测定肺组织匀浆IL-6、TNF-α的含量。结果如下:与对照组比,患病组PDE4活性、IL-6含量和白细胞数显著升高(P<0.05),PDE4各亚型表达量和TNF-α含量有所升高,无显著差异(P>0.05)。与患病组比,治疗组PDE4活性极显著降低(P<0.01),白细胞数目和IL-6含量显著降低(P<0.05);PDE4A、4C、4D的表达下调不显著(P>0.05),PDE4B表达下调极显著(P<0.01);TNF-α含量差异不显著(P>0.05)。PRDC存在肺组织PDE4活性、IL-6含量和外周血白细胞数目显著升高的异常炎症反应;自拟中药方可改善呼吸道病猪临床症状,其作用机制与降低白细胞数目,抑制肺组织PDE4活性、PDE4B表达和降低IL-6含量相关。

Abstract:

The study was conducted to observe the variety of activity of phosphodiesterase 4 (PDE4),expression of different subtype PDE4 and the content of IL-6,TNF-α in lung tissue of porcine respiratory disease complex,and evaluate the therapeutic effect and influence of self-made Chinese herbal prescription for accumulating information of respiratory inflammation pathological mechanism and its prevention.The pigs with respiratory disease were divided into disease group and treatment group,and normal ones as control group.The pigs of treatment group were drenched with Chinese herbal prescription (contain 1 g crude drug per mL),which was composed of Reed Rhizome,Mongolian Milkvetch Root,White Peony Root and Liquorice Root,twice a day and 1.5 mL•kg-1 of body weight for ten days.The changes of the number of white blood cell in peripheral blood were observed,and lung tissue of each group was collected.HPLC was used to detect the PDE4 activity.Real-time PCR was used to test the relative gene expression each subtype of PDE4,and ELISA kit was used to test the content of IL-6,TNF-α of lung tissue.The results were as follows:Compared with control group,the PDE4 activity,the content of IL-6 and the number of white blood cell in disease group increased significantly (P<0.05).The mRNA expression of PDE4A,4B,4C,4D and the content of TNF-α increased with indistinctive differences (P>0.05).Compared with the disease group,PDE4 activity decreased quite significantly (P<0.01),the number of white blood cell and content of IL-6 in treatment group decreased significantly (P<0.05),the content of TNF-α and mRNA expression of PDE4A,4C,4D decreased indistinctive differences (P>0.05),while PDE4B reduced quite significantly (P<0.01).Abnormal inflammatory reaction exists in lung of porcine respiratory system disease,PDE4 activity,content of IL-6 and the number of white blood cell increase significantly.Self-made Chinese herbal prescription can improve the clinical symptoms of the disease,of which the function mechanism is related to the reduction of the number of white blood cell,inhibition of PDE4 activity and PDE4B expression,and reduction content of IL-6 in lung tissue.

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