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1.河北省中医院重症医学科,石家庄 050011
2.河北中医药大学临床医学院,石家庄 050011
3.河北省中医院药学部,石家庄 050011
4.河北省中医院血管外科,石家庄 050011
5.河北省中医院产科,石家庄 050011
6.河北省中医院感染控制科,石家庄 050011
讲师。研究方向:重症医学。E-mail:mga829@163.com
讲师。研究方向:感染控制。E-mail:lkrc06@163.com
收稿日期:2024-09-30,
修回日期:2025-02-24,
录用日期:2025-02-24,
纸质出版日期:2025-03-15
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王灿,李岩涛,周正,等.马钱苷对脓毒症大鼠炎症反应及肠道屏障损伤的影响[J].中国药房,2025,36(05):574-578.
WANG Can,LI Yantao,ZHOU Zheng,et al.Effects of loganin on inflammatory response and intestinal barrier damage in septic rats[J].ZHONGGUO YAOFANG,2025,36(05):574-578.
王灿,李岩涛,周正,等.马钱苷对脓毒症大鼠炎症反应及肠道屏障损伤的影响[J].中国药房,2025,36(05):574-578. DOI: 10.6039/j.issn.1001-0408.2025.05.12.
WANG Can,LI Yantao,ZHOU Zheng,et al.Effects of loganin on inflammatory response and intestinal barrier damage in septic rats[J].ZHONGGUO YAOFANG,2025,36(05):574-578. DOI: 10.6039/j.issn.1001-0408.2025.05.12.
目的
2
探讨马钱苷通过调节Ras同源基因家族成员A(RhoA)/Rho相关卷曲螺旋形成蛋白激酶1(ROCK1)信号通路对脓毒症大鼠炎症反应及肠道屏障损伤的影响及机制。
方法
2
采用盲肠结扎和穿刺法建立脓毒症大鼠模型,并随机分为脓毒症组、马钱苷低剂量组(50 mg/kg马钱苷,灌胃)、马钱苷高剂量组(200 mg/kg马钱苷,灌胃)、阳性对照组(0.2 mg/kg阿托伐他汀,腹腔注射)、马钱苷高剂量+溶血磷脂酸(LPA)组(200 mg/kg马钱苷,灌胃+10 mg/kg RhoA激活剂LPA,腹腔注射),另设假手术组,每组10只,每6 h给药1次,连续给药4次。末次给药24 h后,检测大鼠血清中炎症因子白细胞介素6(IL-6)、肿瘤坏死因子α(TNF-α)、IL-1β水平;观察大鼠回肠组织病理学变化并进行Chiu’s肠黏膜损伤评分;检测大鼠回肠组织中D-乳酸、D-氨基酸氧化酶(DAO)、内毒素水平,闭锁小带蛋白(ZO-1)、闭锁蛋白(Occludin)阳性染色面积百分比以及RhoA、ROCK1的蛋白相对表达水平。
结果
2
与脓毒症组比较,马钱苷低剂量组、马钱苷高剂量组大鼠的ZO-1、Occludin阳性染色面积百分比均显著升高,IL-6、TNF-α、IL-1β、DAO、D-乳酸、内毒素水平和Chiu
’s肠黏膜损伤评分以及RhoA、ROCK1蛋白的相对表达水平均显著降低(
P
<0.05),大鼠回肠组织的破坏程度得到缓解,组织水肿及炎性浸润均明显减轻,且马钱苷高剂量组的改善效果均优于马钱苷低剂量组(
P
<0.05);与马钱苷高剂量组比较,RhoA激活剂LPA可显著逆转上述指标的变化趋势(
P
<0.05)。
结论
2
马钱苷能减轻脓毒症大鼠炎症反应及肠道屏障损伤,其机制与抑制RhoA/ROCK1信号通路有关。
OBJECTIVE
2
To investigate the effects of loganin on inflammatory response and intestinal barrier damage in septic rats by regulating the Ras homolog gene family member A (RhoA)/Rho-associated coiled-coil forming protein kinase 1 (ROCK1) signaling pathway.
METHODS
2
A sepsis rat model was established by cecal ligation and puncture, and randomly divided into sepsis group, loganin low-dose group (50 mg/kg loganin, gavage), loganin high-dose group (200 mg/kg loganin, gavage), positive control group (0.2 mg/kg atorvastatin, intraperitoneal injection), and loganin high-dose + lysophosphatidic acid (LPA) group (200 mg/kg loganin gavage and intraperitoneal injection of 10 mg/kg RohA activator LPA). An additional sham surgery group was established. Each group consisted of 10 rats, and medications were administered once every 6 hours for 4 times. After 24 hours of the last intervention, the levels of serum inflammatory factors interleukin-6 (IL-6), tumor necrosis factor-α (TNF-α), and IL-1β were detected. The pathological changes of ileal tissue were observed and Chiu’s intestinal mucosal injury score was also performed. The levels of intestinal function-lactate dehydrogenase (D-lactate), D-amino acid oxidase (DAO) and endotoxin, the percentages of zonula occludens-1 protein (ZO-1) and Occludin positive staining area, as well as protein expressions of RhoA, and ROCK1 were all detected.
RESULTS
2
Compared with the sepsis group, the percentages of ZO-1 and Occludin positive areas increased significantly in loganin low-dose and high-dose groups; while the levels of IL-6, TNF-α, IL-1β, DAO, D-la
ctate and endotoxin, Chiu’s intestinal mucosal injury score as well as protein expressions of RhoA and ROCK1 decreased significantly (
P
<0.05); the destruction of rat ileal tissue was alleviated, and tissue edema and inflammatory infiltration were significantly reduced; moreover, the improvement effect in loganin high-dose group was superior to that in loganin low-dose group (
P
<0.05). Compared with loganin high-dose group, RhoA activator LPA reversed the trend of changes in the above indicators (
P
<0.05).
CONCLUSIONS
2
Loganin can alleviate inflammatory response and intestinal barrier damage in septic rats, the mechanism of which may be associated with inhibiting RhoA/ROCK1 signaling pathway.
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