畜牧兽医学报 ›› 2015, Vol. 46 ›› Issue (8): 1432-1437.doi: 10.11843/j.issn.0366-6964.2015.08.020

• 基础兽医 • 上一篇    下一篇

维拉帕米对肉鸡肺动脉高压发生过程中肺动脉平滑肌细胞c-Fos表达的影响

王建琳1,乔健2*   

  1. (1.青岛农业大学动物科技学院,青岛 266109;2.中国农业大学动物医学院,北京 100193)
  • 收稿日期:2014-10-30 出版日期:2015-08-23 发布日期:2015-08-23
  • 通讯作者: 乔健,教授,博士生导师,E-mail:qiaojian@cau.edu.cn
  • 作者简介:王建琳(1976-),女,山西沁源人,副教授,博士,主要从事禽病发生机制的研究,E-mail:bjsxxw@126.com
  • 基金资助:

    山东省自然科学基金(ZR2013CL022);国家自然科学基金(30371063)

The Effect of Verapamil on the c-Fos Expression of Pulmonary Artery Smooth Muscular Cells in the Development of Pulmonary Hypertension in Broilers Induced by Low Ambient Temperature

WANG Jian-lin1,QIAO Jian2*   

  1. (1.College of Animal Science and Veterinary Medicine,Qingdao Agricultural University,Qingdao 266109,China;2.College of Veterinary Medicine,China Agricultural University,Beijing 100193,China)
  • Received:2014-10-30 Online:2015-08-23 Published:2015-08-23

摘要:

研究低温诱发肉鸡肺动脉高压过程中肺动脉平滑肌细胞c-Fos的表达情况,及钙拮抗剂维拉帕米对c-Fos表达和肺动脉压的影响,从而探讨肉鸡肺动脉高压的发生机制。180只AA肉鸡14日龄随机分为对照组、低温处理组和维拉帕米组,14~49日龄,每组每周随机取6只测定肺动脉压,取肺组织固定做石蜡组织切片进行c-Fos免疫组织化学染色分析。结果显示,低温处理1周后肉鸡肺动脉压明显升高(P<0.05),20~50 μm肺动脉平滑肌细胞c-Fos表达在处理后1周开始明显升高,50~100 μm肺动脉c-Fos表达在处理后2周开始明显升高(P<0.05),而维拉帕米组肉鸡肺动脉压和c-Fos的表达在相应的时间内较低温组明显降低(P<0.05)。结果表明肺动脉平滑肌细胞c-Fos在低温诱发的肉鸡肺动脉压升高的过程中表达增强,阻断钙通道可抑制肉鸡肺动脉平滑肌细胞c-Fos的过高表达和肺动脉压升高。

Abstract:

The c-Fos expression of the pulmonary arterial smooth muscle cells in the development of the pulmonary hypertension in broilers induced by low ambient temperature and the effect of verapamil on c-Fos expression were dynamically studied.One hundred and eighty 14-day-old AA broilers were randomised into three groups,control group (21 ℃±1 ℃),low temperature group (10 ℃±1 ℃) and verapamil group (10 ℃±1 ℃,add 0.01% verapamil in drinking water).Then their pulmonary arterial pressures were measured;and the lungs of broilers were fixed to study the expression of c-Fos.The results showed that the pulmonary arterial pressure in low temperature group significantly higher than those in control group and verapamil group after exposure to low temperature one week (P<0.05),the expression of c-Fos in 20-50 μm and 50-100 μm pulmonary arteries in low temperature group were significantly higher than those in control group and verapamil group after exposure to low temperature one and two weeks respectively (P<0.05).The results suggested that the expression of c-Fos in pulmonary arteries were significantly increased and verapamil can prevent the high expression of c-Fos and the increase of pulmonary arterial pressure.

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