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大豆异黄酮对先兆流产模型大鼠的保胎作用及机制研究
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李三阳 ,金蓬勃 ,王秋红 ,王晶晶 ,苗 婷 ,陈东方 ,郑伯媛(1.郑州卫生健康职业学院妇儿教研室, 河南
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荥阳 450199;2.郑州大桥医院妇产科,郑州 450053;3.河南中医药大学第一附属医院妇产科,郑州 450003)
中图分类号 R965;R285 文献标志码 A 文章编号 1001-0408(2024)12-1482-07
DOI 10.6039/j.issn.1001-0408.2024.12.12
摘 要 目的 研究大豆异黄酮对先兆流产大鼠的保胎作用及可能机制。方法 取雌鼠促情,与雄鼠交配、妊娠后随机分为正常组
(纯化水灌胃,n=10)、模型组(纯化水灌胃,n=9)、阳性对照药组(黄体酮4 mg/kg,肌内注射,n=9)和大豆异黄酮低、中、高剂量组
(25、50、100 mg/kg灌胃,n=10)。除正常组外,其余各组大鼠均于孕8 d以米非司酮+米索前列醇灌胃建立先兆流产模型。各组大
鼠分别于孕1~7 d、孕9~12 d给药/纯化水,每天1次。孕14 d时,计算各组大鼠的保胎率,检测大鼠血清中β-人绒毛膜促性腺激
素(β-HCG)、孕酮(P)水平,观察大鼠胎盘与蜕膜组织病理形态学变化并检测其细胞凋亡指数,检测胎盘组织中凋亡相关因子
(Fas)、凋亡相关因子配体(FasL)、增殖细胞核抗原(PCNA)和肝素结合表皮生长因子(HB-EGF) mRNA及其蛋白表达,检测蜕膜
组织中Fas、PCNA和HB-EGF mRNA及其蛋白表达。结果 模型组大鼠胎盘组织充血扩张明显,血管较少且形态不规则,可见大
量严重基质水肿、炎症细胞浸润和铁胆黄素沉积。与模型组比较,大豆异黄酮各剂量组大鼠的保胎率,血清β-HCG、P水平,胎盘
与蜕膜组织中PCNA、HB-EGF mRNA及其蛋白表达水平均显著升高(P<0.05),病理学变化显著改善;胎盘与蜕膜组织细胞凋亡
指数,胎盘组织中Fas、FasL mRNA及其蛋白表达水平,蜕膜组织中Fas mRNA及其蛋白表达水平均显著降低(P<0.05),且大豆异
黄酮的上述作用呈剂量依赖性(P<0.05)。结论 大豆异黄酮对先兆流产模型大鼠有保胎作用;其作用机制可能与下调母-胎界面
Fas、FasL mRNA及其蛋白表达,上调PCNA、HB-EGF mRNA及其蛋白表达有关。
关键词 大豆异黄酮;先兆流产;母-胎界面;凋亡相关因子;凋亡相关因子配体;增殖细胞核抗原;肝素结合表皮生长因子
Study on the protective effect and mechanism of soybean isoflavones against threatened miscarriage model
rats
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LI Sanyang ,JIN Pengbo ,WANG Qiuhong ,WANG Jingjing ,MIAO Ting ,CHEN Dongfang ,ZHENG Boyuan 3
(1. Women and Children’s Teaching and Research Section, Zhengzhou Health Vocational College, Henan
Xingyang 450199, China;2. Dept. of Obstetrics and Gynecology, Zhengzhou Bridge Hospital, Zhengzhou
450053, China;3. Dept. of Obstetrics and Gynecology, the First Affiliated Hospital of Henan University of
Chinese Medicine, Zhengzhou 450003,China)
ABSTRACT OBJECTIVE To study the protective effect and possible mechanism of soybean isoflavones against threatened
miscarriage rats. METHODS Female mice were selected to promote estrus and mate with male mice. After pregnancy, they were
randomly divided into normal group (purified water, i.g., n=10), model group (purified water, i.g., n=9), positive control drug
group (progesterone 4 mg/kg, i.m., n=9), low-, medium- and high-dose soybean isoflavone groups (25, 50 and 100 mg/kg, i.g.,
n=10). Except for the normal group, the rest were given mifepristone+misoprostol on the 8th day of pregnancy to establish
threatened miscarriage model, and then given purified water or drugs, once a day, on days 1-7 and 9-12 of pregnancy,
respectively. At 14 days of pregnancy, the rates of fetal protection were counted. Serum levels of β-human chorionic gonadotrophin
(β-HCG) and progesterone (P) in rats were detected. Pathological and morphological changes in rat placenta and decidua tissues
were observed, and the apoptosis indexes of cells were detected; mRNA and protein expressions of factor of apoptosis related
(Fas), factor of apoptosis related ligand (FasL), proliferating cell nuclear antigen (PCNA) and heparin binding epidermal growth
factor (HB-EGF) were determined in placenta tissues, and mRNA and protein expressions of Fas, PCNA and HB-EGF in decidua
tissues were detected. RESULTS In the model group, the
Δ 基金项目 河南省中医药科学研究专项课题(No.2019JDZX- placental tissues of rats were hyperemia and dilatation, with
2094) fewer and irregular blood vessels; severe stromal edema,
*第一作者 主治医师,助教,硕士。研究方向:围产与生殖医学、
inflammatory cell infiltration and iron-choledrin deposition
教育学。E-mail:kpqo6ppq@126.com
# 通信作者 副教授,硕士。研究方向:流行病学、统计学。 were observed. Compared with model group, the fetal survival
E-mail:15981868989@163.com rates, serum levels of β-HCG and P, the expressions of PCNA
· 1482 · China Pharmacy 2024 Vol. 35 No. 12 中国药房 2024年第35卷第12期