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1.河北中医药大学 药学院,石家庄 050200
2.河北省中药资源利用与质量评价国际联合研究中心,石家庄 050200
3.河北中医药大学 基础医学院,石家庄 050200
4.河北省中医院, 石家庄 050011
5.河北中医药大学 研究生学院,石家庄 050200
Received:08 April 2025,
Revised:2025-06-04,
Accepted:11 June 2025,
Published Online:13 June 2025,
Published:20 February 2026
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沈浩然,顾亚茹,张睦清等.基于5-HT信号通路探讨越鞠丸治疗功能性消化不良的机制[J].中国实验方剂学杂志,2026,32(04):20-28.
SHEN Haoran,GU Yaru,ZHANG Muqing,et al.Mechanism of Yueju Wan in Treatment of Functional Dyspepsia Based on Regulation of 5-HT Signaling Pathway[J].Chinese Journal of Experimental Traditional Medical Formulae,2026,32(04):20-28.
沈浩然,顾亚茹,张睦清等.基于5-HT信号通路探讨越鞠丸治疗功能性消化不良的机制[J].中国实验方剂学杂志,2026,32(04):20-28. DOI: 10.13422/j.cnki.syfjx.20251237.
SHEN Haoran,GU Yaru,ZHANG Muqing,et al.Mechanism of Yueju Wan in Treatment of Functional Dyspepsia Based on Regulation of 5-HT Signaling Pathway[J].Chinese Journal of Experimental Traditional Medical Formulae,2026,32(04):20-28. DOI: 10.13422/j.cnki.syfjx.20251237.
目的
2
通过观察越鞠丸对功能性消化不良(FD)大鼠5-羟色胺(5-HT)信号通路的影响,探讨其治疗FD的作用机制。
方法
2
60只SD大鼠随机分为正常组,模型组,莫沙必利组(1.575 mg·kg
-1
)和越鞠丸低、中、高剂量组(0.735、1.47、2.94 g·kg
-1
),采用郭氏夹尾刺激联合不规则喂养法复制FD大鼠模型,造模14 d后灌胃给药治疗28 d。治疗结束后检测大鼠胃排空率及小肠推进率;采用酶联免疫吸附测定法(ELISA)检测血清5-HT、色氨酸羟化酶(TPH)、P物质(SP)的含量;化学法检测乙酰胆碱(ACh)含量;苏木素-伊红(HE)染色法观察胃窦组织病理形态学变化;实时荧光定量聚合酶链式反应(Real-time PCR)和蛋白免疫印迹法(Western blot)观察大鼠结肠组织5-羟色胺4受体(5-HT4R)、SP、乙酰胆碱酯酶(AChE)和下丘脑组织5-羟色胺3受体(5-HT3R)、SP、AChE 信使核糖核酸(mRNA)和蛋白的表达水平;免疫组化(IHC)法观察大鼠结肠5-HT、5-HT4R和下丘脑中5-HT、5-HT3R的表达。
结果
2
与正常组比较,模型组大鼠胃排空率及小肠推进率显著下降(
P
<
0.01);血清5-HT、SP、ACh、TPH含量显著降低(
P
<
0.01);胃窦组织腺体排列不规则,黏膜层有轻微萎缩现象,少量炎性细胞浸润;结肠组织5-HT4R、SP、AChE和下丘脑组织5-HT3R、SP、AChE mRNA及蛋白表达显著降低(
P
<
0.01);结肠和下丘脑5-HT蛋白表达显著降低(
P
<
0.01)。与模型组比较,越鞠丸各剂量组胃排空率及小肠推进率显著升高(
P
<
0.01);胃窦组织黏膜腺体排列较为规则,未见炎性细胞浸润;血清5-HT、SP、ACh、TPH含量显著升高(
P
<
0.01);结肠组织5-HT4R、SP、AChE和下丘脑组织5-HT3R、SP、AChE mRNA及蛋白表达明显升高(
P
<
0.05,
P
<
0.01);结肠和下丘脑5-HT蛋白表达显著升高(
P
<
0.01)。
结论
2
越鞠丸具有防治FD的作用,其机制可能与调节5-HT信号通路,促进脑肠肽分泌,增强胃动力有关。
Objective
2
To investigate the effects of Yueju Wan on the 5-hydroxytryptamine (5-HT) signaling pathway in rats with functional dyspepsia (FD) and to explore its therapeutic mechanism in the treatment of FD.
Methods
2
Sixty Sprague-Dawley (SD) rats were randomly divided into a normal group, model group, mosapride group (1.575 mg·kg
-1
), and Yueju Wan low-, medium-, and high-dose groups (0.735, 1.47, and 2.94 g·kg
-1
, respectively). The FD rat model was established using GUO's tail-clamping stimulation combined with irregular feeding. After 14 days of modeling, rats were administered the corresponding drugs by gavage for 28 days. After treatment, gastric emptying rate and small intestinal propulsion rate were measured. Serum levels of 5-HT, tryptophan hydroxylase (TPH
), and substance P (SP) were detected by enzyme-linked immunosorbent assay (ELISA), and acetylcholine (ACh) levels were determined by chemical methods. Histopathological changes in the gastric antrum were observed using hematoxylin-eosin (HE) staining. Real-time quantitative polymerase chain reaction (Real-time PCR) and Western blot were used to assess the mRNA and protein expression levels of 5-hydroxytryptamine 4 receptor (5-HT4R), SP, and acetylcholinesterase (AChE) in colon tissue, as well as 5-hydroxytryptamine 3 receptor (5-HT3R), SP, and AChE in hypothalamic tissue. Immunohistochemistry (IHC) was used to examine the expression of 5-HT and 5-HT4R in the colon and 5-HT and 5-HT3R in the hypothalamus.
Results
2
Compared with the normal group, the gastric emptying rate and small intestinal propulsion rate in the model group were significantly decreased (
P
<
0.01). Serum levels of 5-HT, SP, ACh, and TPH were significantly reduced (
P
<
0.01). Histopathological examination revealed irregular arrangement of glands in the gastric antrum, slight mucosal atrophy, and mild inflammatory cell infiltration. The mRNA and protein expression levels of 5-HT4R, SP, and AChE in colon tissue, as well as 5-HT3R, SP, and AChE in hypothalamic tissue, were significantly decreased (
P
<
0.01), and 5-HT protein expression in both the colon and hypothalamus was also significantly reduced (
P
<
0.01). Compared with the model group, all Yueju Wan groups showed significantly increased gastric emptying rate and small intestinal propulsion rate (
P
<
0.01). The glands in the gastric antrum were more regularly arranged, with no inflammatory cell infiltration observed. Serum levels of 5-HT, SP, ACh, and TPH were significantly increased (
P
<
0.01). The mRNA and protein expression levels of 5-HT4R, SP, and AChE in colon tissue and 5-HT3R, SP, and AChE in hypothalamic tissue were significantly upregulated (
P
<
0.05,
P
<
0.01), and 5-HT protein expression in both the colon and hypothalamus was significantly increased (
P
<
0.01).
Conclusion
2
Yueju Wan has preventive and therapeutic effects on FD, and its mechanism may be related to regulation of the 5-HT signaling pathway, promotion of brain-gut peptide secretion, and enhancement of gastric motility.
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