|本期目录/Table of Contents|

[1]曹丽睿,查玉杰,何庆.山柰酚对大鼠高原肺水肿的预防作用及机制研究[J].天津医科大学学报,2022,28(01):58-64.
 CAO Li-rui,ZHA Yu-jie,HE Qing.Preventive effect and mechanism of kaempferol on high altitude pulmonary edema in rats[J].Journal of Tianjin Medical University,2022,28(01):58-64.
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山柰酚对大鼠高原肺水肿的预防作用及机制研究(PDF)
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《天津医科大学学报》[ISSN:1006-8147/CN:12-1259/R]

卷:
28卷
期数:
2022年01期
页码:
58-64
栏目:
基础研究
出版日期:
2022-01-20

文章信息/Info

Title:
Preventive effect and mechanism of kaempferol on high altitude pulmonary edema in rats
文章编号:
1006-8147(2022)01-0058-07
作者:
曹丽睿1查玉杰1何庆2
(1. 西南交通大学医学院,成都610036;2. 西南交通大学附属医院成都市第三人民医院,成都 610030)
Author(s):
CAO Li-rui1ZHA Yu-jie1HE Qing2
(1.Medical College,Southwest Jiaotong University,Chengdu 610030,China; 2.Affiliated Hospital of Southwest Jiaotong University,Third People′s Hospital,Chengdu 610036,China)
关键词:
山柰酚高原肺水肿PI3K/Akt信号通路保护机制
Keywords:
kaempferolacute high altitude pulmonary edemaPI3K/Akt signal pathwayprotective mechanism
分类号:
R563.9
DOI:
-
文献标志码:
A
摘要:
目的:探究山柰酚干预对大鼠急性高原肺水肿的保护作用和可能存在的机制。方法:将32只雄性Sprauge-Dawley(SD)大鼠随机分为对照组(N组)、模型组(M组)、山柰酚组(KA组)和乙酰唑胺组(ACZ组),每组8只,预给药7 d后利用高原性疾病环境模拟系统(模拟海拔6 000 m高原环境)建立急性高原肺水肿大鼠模型。造模完成后,观察各组大鼠肺组织病理学变化,计算肺含水量,试剂盒检测肺组织超氧化物歧化酶(SOD)和一氧化氮合酶(NOS)活性、丙二醛(MDA)含量、炎症因子肿瘤坏死因子-α(TNF-α)和白细胞介素-6(IL-6)水平,并检测肺组织磷脂酰肌醇3激酶(Phosphatidylinositol-3 kinase,PI3K)、丝氨酸苏氨酸蛋白激酶(Protein-serine-threonine kinase,Akt)mRNA水平和蛋白相对含量。结果:与N组相比,M组肺含水量上升,肺水肿病理表现显著,肺组织TNF-α、IL-6水平升高(t=14.753、7.666,均P<0.01),SOD和NOS活性下降(t=9.663、4.681,均P<0.01),MDA含量上升(t=13.906,P<0.01);与M组比较,KA组的肺含水量降低,肺水肿病理表现减轻,炎症因子TNF-α和IL-6水平均明显下降(t=9.104、3.843,均P<0.01),SOD活性上升(t=3.715,P<0.01),NOS活性上升(t=2.629,P<0.05),MDA含量下降(t=9.196,P<0.01)。与N组相比,M组PI3K、Akt1 mRNA表达水平升高(t=7.069、5.896,均P<0.01)、蛋白相对含量升高(t=3.552、7.930,均P<0.05);与M组比较,KA组PI3K、Akt1 mRNA表达水平降低(t=8.468、5.871,均P<0.01)、蛋白含量降低(t=6.701、4.010,均P<0.05)。结论:山柰酚可以通过减轻氧化损伤和抑制炎症反应,预防低压低氧诱导的急性高原肺水肿的发生,这种保护作用可能与下调PI3K/Akt信号通路有关。
Abstract:
Objective: To explore the protective effect and possible mechanism of kaempferol intervention on acute high altitude pulmonary edema in rats. Methods: Thirty-two male Sprauge-Dawley(SD) rats were randomly divided into control group (N group),model group (M group),kaempferol group(KA group) and acetazolamide group(ACZ group),with 8 rats in each group. After 7 days of pre-administration,the acute high altitude pulmonary edema model was established through a high-altitude disease environment simulation system(simulating environment of 6 000 m at high altitude). After the modeling was completed,the pathological changes of lung tissue,the lung wet/dry ratio,superoxide dismutase (SOD),nitric oxide synthase (NOS),malondialdehyde (MDA),tumor necrosis factor-α(TNF-α),interleukin-6 (IL-6) levels,the mRNA level and protein expression of phosphatidylinositol 3 kinase(PI3K) and serine threonine protein kinase(Akt) were detected. Results: Compared with group N,group M showed increased wet/dry ratio,marked pathological changes,increased levels of TNF-α and IL-6 in lung tissues(t=14.753,7.666,both P<0.01),and decreased SOD and NOS activities(t=9.663, 4.681,both P<0.01),the content of MDA increased(t=13.906,P<0.01). Compared with group M,the wet/dry ratio of group KA was reduced,the pathological manifestations of pulmonary edema were alleviated,and the levels of TNF-α and IL-6 decreased significantly(t=9.104,3.839,both P<0.01),SOD and NOS activity increased(t=3.715,2.629,P<0.01,P<0.05),MDA content decreased(t=9.196,P<0.01). Compared with group N,the PI3K and Akt1 mRNA expression of group M increased(t=7.069,

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备注/Memo

备注/Memo:
基金项目 四川省科技计划重点研发项目(2017FZ0058)
作者简介 曹丽睿(1994-),女,硕士在读,研究方向:急性高原缺氧;通信作者:何庆,E-mail: 123hq@163.com。
更新日期/Last Update: 2022-01-20