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Changes of hepatocellular apoptosis and hepatic function in pigs with intestinal perforations due to abdominal firearm wound in dry-heat desert environment

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Author:
No author available
Journal Title:
WORLD CHINESE JOURNAL OF DIGESTOLOGY
Issue:
11
DOI:
10.3969/j.issn.1009-3079.2008.11.017
Key Word:
腹部;火器伤;肝损伤;凋亡;沙漠干热环境

Abstract´╝Ü 目的:观察沙漠干热环境下猪腹部肠管火器伤后肝细胞凋亡和肝脏功能的变化,并探讨肝细胞凋亡和肝脏损害的关系.方法:沙漠干热环境组和常温环境组各健康长白仔猪42头随机等分为对照组和伤后1、2、4、8、12和24h组,实验组建立腹部肠管火器伤动物模型后,采用TUNEL法观察肝细胞凋亡情况,同时测定各时间点血清ALT水平.结果:伤后各组肝细胞凋亡指数明显高于对照组(沙漠干热环境:21.18%±2.23%,49.51%±4.18%,42.61%±3.20%,76.47%±3.64%,72.26%±4.98%.61.41%±98% vs 2.98%±0.74%,P<0.05;常温环境:60.37%±3.99%,73.40%±2.93%,48.97%±1.73%,32.17%±1.50%,42.92%±1.98%,19.04%±0.72%vs2.65%±0.37%,P<0.05),并于伤后2h出现第1个高峰,沙漠干热环境组和常温环境组分别于伤后8h和12h出现第2个高峰;血清ALT的变化趋势与肝细胞凋亡的趋势一致;在沙漠干热环境和常温环境下,肝细胞凋亡指数和ALT均呈正相关(r=0.91,0.93;均P<0.01).结论:肝细胞凋亡在肝脏的损害过程中起重要作用,干预肝细胞凋亡可能是腹部肠管火器伤后减少肝损伤的有效措施.

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