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1.贵州中医药大学第一附属医院妇科, 贵阳 550001
2.贵州医科大学临床微生物与免疫学教研室,贵阳 550001
3.贵州中医药大学第一附属医院优生研究中心,贵阳 550001
4.贵州中医药大学第二附属医院产科,贵阳 550002
Received:11 May 2023,
Revised:2023-08-18,
Accepted:30 August 2023,
Published:15 October 2023
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孙哲,刘莲,张泰魏,等.当归多糖改善先兆流产模型大鼠Th1/Th2失衡及保胎作用[J].中国药房,2023,34(19):2344-2349.
SUN Zhe,LIU Lian,ZHANG Taiwei,et al.Angelica sinensis polysaccharides improve Th1/Th2 imbalance and protect pregnancy in threatened abortion model rats[J].ZHONGGUO YAOFANG,2023,34(19):2344-2349.
孙哲,刘莲,张泰魏,等.当归多糖改善先兆流产模型大鼠Th1/Th2失衡及保胎作用[J].中国药房,2023,34(19):2344-2349. DOI: 10.6039/j.issn.1001-0408.2023.19.08.
SUN Zhe,LIU Lian,ZHANG Taiwei,et al.Angelica sinensis polysaccharides improve Th1/Th2 imbalance and protect pregnancy in threatened abortion model rats[J].ZHONGGUO YAOFANG,2023,34(19):2344-2349. DOI: 10.6039/j.issn.1001-0408.2023.19.08.
目的
2
研究当归多糖通过调节磷脂酰肌醇3激酶(PI3K)/蛋白激酶B(AKT)信号通路对先兆流产模型大鼠的保胎作用及Th1/Th2平衡的影响。
方法
2
将妊娠大鼠随机分为对照组、模型组、当归多糖组(200 mg/kg)、PI3K/AKT信号通路抑制剂LY294002组(5 mg/kg)和当归多糖+LY294002组(200 mg/kg当归多糖+5 mg/kg LY294002),每组10只。除对照组外其余各组大鼠均灌胃米非司酮(8.3 mg/kg)和米索前列醇(100 μg/kg)建立先兆流产模型,并灌胃或腹腔注射相应药物。检测大鼠血清中雌激素、孕激素、干扰素γ(IFN-γ)、肿瘤坏死因子α(TNF-α)、白细胞介素4(IL-4)水平;测定大鼠子宫卵巢指数及胚胎死亡率;观察大鼠子宫组织形态;检测大鼠外周血中Th1/Th2平衡以及子宫组织中PI3K/AKT信号通路相关蛋白的表达。
结果
2
与对照组比较,模型组大鼠子宫组织出现病理损伤;血清中雌激素、孕激素、IL-4水平,子宫卵巢指数、外周血中Th2细胞比例,子宫组织中p-PI3K/PI3K、p-AKT/AKT比值均显著降低(
P
<0.05);胚胎死亡率、Th1细胞比例、Th1/Th2比值和血清中IFN-γ、TNF-α水平均显著升高(
P
<0.05)。与模型组比较,当归多糖组大鼠子宫组织病理损伤减轻,上述指标均显著改善(
P
<0.05),且LY294002可减弱当归多糖对模型大鼠的改善作用(
P
<0.05)。
结论
2
当归多糖可通过激活PI3K/AKT信号通路改善先兆流产模型大鼠Th1/Th2失衡,进而抑制免疫炎症,促使胚胎存活。
OBJECTIVE
2
To study the tocolysis effects of
Angelica sinensis
polysaccharides on threatened abortion model rats and their impacts on Th1/Th2 balance by regulating the phosphoinositide 3-kinase (PI3K)/protein kinase B (AKT) signaling pathway.
METHODS
2
Pregnant rats were randomly grouped into the control group, model group,
A. sinensis
polysaccharide group (200 mg/kg), PI3K/AKT signaling pathway inhibitor LY294002 group (5 mg/kg), and
A. sinensis
polysaccharide+LY294002 group (200 mg/kg
A. sinensis
polysaccharide+5 mg/kg LY294002), with 10 rats in each group. Except for the control group, rats in all other groups were given mifepristone (8.3 mg/kg) and misoprostol (100 μg/kg) intragastri
cally to establish a threatened abortion model, and intragastric or intraperitoneal injection of corresponding drugs. The serum levels of estrogen, progesterone, interferon-γ (IFN-γ), tumor necrosis factor-α (TNF-α), and interleukin-4 (IL-4) in each group of rats were detected, and the uterine ovarian index and embryonic mortality rate of rats in each group were measured; the morphology of uterine tissue in rats was observed in each group; Th1/Th2 balance in peripheral blood of rats as well as the expression of PI3K/AKT signaling pathway-related proteins in the uterine tissues of rats in each group were detected.
RESULTS
2
Compared with the control group, the uterine tissue of rats in the model group showed pathological damage; the serum levels of estrogen, progesterone and IL-4, uterine ovarian index, peripheral blood Th2 cell ratio, and the ratios of phosphorylated PI3K (p-PI3K)/PI3K and phosphorylated AKT (p-AKT)/AKT in uterine tissue were all decreased (
P
<0.05); the embryo mortality rate, Th1 cell ratio, Th1/Th2 ratio, and serum levels of IFN-γ and TNF-α were increased (
P
<0.05). Compared with the model group, the pathological damage of uterine tissue in the
A. sinensis
polysaccharide group was reduced, and the above indexes were all improved significantly (
P
<0.05); LY294002 could weaken the effect of
A. sinensis
polysaccharide on model rats (
P
<0.05).
CONCLUSIONS
2
A. sinensis
polysaccharides can improve Th1/Th2 imbalance in threatened abortion model rats by activating the PI3K/AKT signaling pathway, thereby inhibiting immune inflammation, and promoting embryo survival.
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