实验动物与比较医学 ›› 2021, Vol. 41 ›› Issue (3): 238-243.DOI: 10.12300/j.issn.1674-5817.2020.119

• 论著:人类疾病动物模型 • 上一篇    下一篇

高原多脏器功能障碍综合征蕨麻猪模型C反应蛋白及炎性因子的变化

肖攀1, 牛廷献1, 罗晓红2, 王红义1, 郭晓宇1, 陆璐1, 冯小明1   

  1. 1.联勤保障部队第九四〇医院基础医学实验室,兰州 730050;
    2.联勤保障部队第九四〇医院内分泌科,兰州 730050
  • 收稿日期:2020-08-14 修回日期:2021-01-14 出版日期:2021-06-25 发布日期:2021-07-05
  • 作者简介:肖 攀(1991—), 男, 本科, 技师, 主要研究方向: 实验动物质量控制及开发。E-mail: 997078955@qq.com
  • 基金资助:
    军队实验动物专项科研课题 (SYDW[2018]12号)

Changes of C-reactive Protein and Inflammatory Factors in Juema Pig Model with High Altitude Multiple Organ Dysfunction Syndrome

XIAO Pan1, NIU Tingxian1, LUO Xiaohong2, WANG Hongyi1, GUO Xiaoyu1, LU Lu1, FENG Xiaoming1   

  1. 1. Department of Basic Medical Laboratory, Joint Service Support Unit Army No. 940 Hospital of PLA, Lanzhou 730050, China;
    2. Department of Endocrine, Joint Service Support Unit Army No. 940 Hospital of PLA, Lanzhou 730050, China
  • Received:2020-08-14 Revised:2021-01-14 Online:2021-06-25 Published:2021-07-05

摘要: 目的 研究高原多脏器功能障碍综合征(high altitude multiple organ dysfunction syndrome,H-MODS)蕨麻猪模型肿瘤坏死因子-α(tumor necrosis factor-α,TNF-α)、白细胞介素-1β(interleukin-1β,IL-1β)及C反应蛋白(C-reactive protein,CRP)在炎性反应过程中的变化特点。方法 选用3个剂量(0.25、0.35和0.50 mg/kg)的内毒素脂多糖(lipopolysaccharide,LPS)诱导高原土生蕨麻猪成功建立H-MODS模型(B、C、D组),同时设生理盐水对照组(A组)。检测不同时间点的血清TNF-α、IL-1β及CRP表达水平。结果 各组蕨麻猪泵入LPS后TNF-α、IL-1β表达量均急剧升高,并在6h升至最高,在3~12h时与同组0h及同时间点A组相比均明显升高(P<0.05或P<0.01),12 h后逐渐下降;B、D组TNF-α表达量在24 h后与同组0 h及同时间点A组相比均明显升高(P<0.05),在72 h后B组明显高于A组(P<0.05)。24 h的IL-1β表达量D组高于0 h和A组(P<0.05),之后其表达量逐渐下降,在48 h、72 h时与0 h和A组相比均明显降低(P<0.05或P<0.01)。静脉泵入LPS后,B、C、D组CRP表达量开始升高,并在24~48 h时表达量达到最大;其各组CRP表达量在6~72 h时与0 h和A组相比均明显升高(P<0.05或P<0.01)。结论 H-MODS形成时机体产生严重的炎性反应,炎性因子TNF-α、IL-1β表达量迅速升高,但在免疫调节作用下其表达量迅速下调,并在短时间内出现急剧波动而达到平衡状态;而CRP表达量变化相对缓慢,伴随于体内炎性反应的整个过程。

关键词: 高原多脏器功能障碍综合征, 蕨麻猪, 肿瘤坏死因子-α, 白细胞介素-1β, C反应蛋白

Abstract: Objective To investigate the changes of tumor necrosis factor-α (TNF-α), interleukin-1β (IL-1α) and C-reactive protein (CRP) in the development of inflammation in the Juma pig odel with high altitude multiple organ dysfunction syndrome (H-MODS). Methods Three doses (0.25, 0.35, and 0.50 mg/kg) of endotoxin lipopolysaccharide (LPS) were used to induce the H-MODS model (group B, C and D), and normal saline was used as control (group A). The serum levels of TNF-α, IL-1β and CRP were detected at different time points. Results The expression levels of TNF-α and IL-1β increased sharply after LPS infusion to the pigs, and reached the highest level at 6 h; the levels at 3-12 h of the pigs treated with LPS were increased compared with the level at 0 h of the pigs with the same treatment and the level of compared group A at the same time point (P < 0.05 or P < 0.01), and then decreased gradually. The expression levels of TNF-α at 24 h in groups B and D were significantly higher than that in the same group at 0 h and group A at the same time point (P < 0.05), and the expression level of TNF-α was significantly higher in group B than that in group A at 72 h (P < 0.05). The expression level of IL-1β at 24 h in group D was higher than that at 0 h and that in group A at the same time point (P < 0.05), and then decreased gradually. Compared with 0 h and group A, the expression levels of IL-1α in group D decreased significantly at 48 h and 72 h (P < 0.05 or P < 0.01). After intravenous infusion of LPS, the expression levels of CRP in groups B, C and D began to increase, and reached the maximum at 24-48 h; the expression levels of CRP in the other groups at 6-72 h were significantly higher than those in group A and at 0 h (P < 0.05 or P < 0.01). Conclusion Severe inflammatory reaction occurs during the development of H-MODS, and the expressions of inflammatory factors TNF-α and IL-1β increase rapidly first and then decrease sharply under immune regulation, displaying large fluctuations in short time until achieving an equilibrium; the CRP expression changes slowly throughout the inflammatory reaction in vivo.

Key words: High altitude multiple organ dysfunction syndrome, Juema pigs, Tumor necrosis factor-α, Interleukin-1β, C-reactive protein

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