健脾化痰方调控HMGB1/RAGE通路改善大鼠多囊卵巢综合征的机制研究
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| 篇名: | 健脾化痰方调控HMGB1/RAGE通路改善大鼠多囊卵巢综合征的机制研究 |
| TITLE: | Mechanism of Jianpi huatan formula improving polycystic ovary syndrome in rats by regulating the HMGB1/RAGE signaling pathway |
| 摘要: | 目的 探究健脾化痰方(JPHTF)调控高迁移率族蛋白B1(HMGB1)/晚期糖基化终末产物受体(RAGE)信号通路对多囊卵巢综合征(PCOS)大鼠的影响。方法将大鼠随机分为正常(Con)组、PCOS组、JPHTF低剂量(JPHTF-L,5.54g/kg)组、JPHTF高剂量(JPHTF-H,11.07g/kg)组、JPHTF-H+重组HMGB1蛋白(JPHTF11.07g/kg+rHMGB18μg/kg)组和二甲双胍(0.27g/kg)组,每组12只。除Con组大鼠以1%羧甲基纤维素钠溶液灌胃,同时喂食普通饲料外,其余大鼠通过高脂饮食联合来曲唑制备PCOS模型。造模成功后,各给药组大鼠灌胃/尾静脉注射相应药物,每日1次,连续4周。干预结束24h后,称量大鼠体重,计算卵巢系数,检测空腹血糖(FBG)和血清中空腹胰岛素(FINS)、促卵泡素(FSH)、黄体生成素(LH)、睾酮(T)、雌二醇(E2)水平,计算胰岛素抵抗稳态模型评估指数,以及检测卵巢组织中肿瘤坏死因子α(TNF-α)、白细胞介素18(IL-18)、IL-1β水平和HMGB1、RAGE、磷酸化核因子κB(p-NF-κB)和NF-κB蛋白表达水平,观察卵巢组织形态及囊性卵泡和黄体数量。结果与PCOS组比较,JPHTF-L组、JPHTF-H组和二甲双胍组大鼠卵巢组织多囊性病变均有不同程度改善;体重,卵巢系数,FBG,囊性卵泡数量,血清中FINS、HOMA-IR、T、LH、LH/FSH水平,卵巢组织中TNF-α、IL-18、IL-1β水平和HMGB1、RAGE蛋白表达水平以及NF-κB蛋白磷酸化水平均显著降低;黄体数量和血清中E2、FSH水平均显著升高(P<0.05)。与JPHTF-H组比较,JPHTF-H+rHMGB1组大鼠上述指标变化均显著逆转(P<0.05)。结论JPHTF可通过抑制HMGB1/RAGE信号通路来降低PCOS大鼠炎症反应,减轻卵巢损伤,调节激素平衡,改善胰岛素抵抗和卵泡发育。 |
| ABSTRACT: | OBJECTIVE To explore the effects of the Jianpi huatan formula (JPHTF) on polycystic ovary syndrome (PCOS) in rats by regulating the high mobility group box 1 protein (HMGB1)/receptor for advanced glycation end products (RAGE) signaling pathway. METHODS The rats were randomly divided into the normal (Con) group, the PCOS group, the JPHTF-L group (5.54 g/kg), the JPHTF-H group (11.07 g/kg), the JPHTF-H+rHMGB1 group (11.07 g/kg of JPHTF+8 μg/kg of rHMGB1), and metformin group (0.27 g/kg), with 12 rats in each group. Except for the rats of Con group, which were given 1% sodium carboxymethyl cellulose intragastrically and fed with normal chow, the remaining rats were induced to develop PCOS models by using a high-fat diet combined with letrozole. Af ter successful modeling, rats in each drug group were administered the corresponding drugs by gavage or tail vein injection once a day for 4 consecutive weeks. 24 h after the intervention, body weight and ovarian coefficient were detected. The levels of fasting blood glucose (FBG), serum levels of fasting insulin (FINS), follicle stimulating hormone (FSH), luteinizing hormone (LH), testosterone (T) and estradiol (E 2 ) were detected. The homeostasis model assessment of insulin resistance (HOMA-IR) was calculated. The levels of tumor necrosis factor-α (TNF-α), interleukin-18 (IL-18) and IL-1β and the protein expressions of HMGB1, RAGE, phosphorylated nuclear factor-κB (p-NF-κB) and NF-κB in the ovarian tissues of rats were detected. The morphology of ovarian tissue was observed, and the numbers of cystic follicles and corpora lutea were counted. RESULTS Compared with PCOS group, polycystic changes of ovarian tissue in rats showed varying degrees of improvement in the JPHTF-L group, JPHTF-H group, and metformin group; body weight, ovarian coefficient, FBG, the number of cystic follicles, serum levels of FINS, HOMA-IR, T, LH, LH/FSH, the levels of TNF-α, IL-18 and IL-1β and protein expressions of HMGB1 and RAGE in ovarian tissue as well as phosphorylation level of NF-κB protein all significantly decreased; the number of corpora lutea and the serum levels of E 2 and FSH significantly increased ( P <0.05). Compared with JPHTF-H group, above indexes of rats were reversed significantly in JPHTF-H+rHMGB1 group ( P <0.05). CONCLUSIONS JPHTF can reduce the inflammatory response in PCOS rats, mitigate ovarian injury, regulate hormone balance, and improve insulin resistance and follicular development by inhibiting the HMGB1/RAGE signaling pathway. |
| 期刊: | 2026年第37卷第08期 |
| 作者: | 徐静;向英 |
| AUTHORS: | XU Jing,XIANG Ying |
| 关键字: | 健脾化痰方;多囊卵巢综合征;HMGB1/RAGE信号通路;胰岛素抵抗;卵泡发育;炎症反应 |
| KEYWORDS: | Jianpi huatan formula; polycystic ovary syndrome; HMGB1/RAGE signaling pathway; insulin resistance; |
| 阅读数: | 1 次 |
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