1.Pathogenesis and Syndrome Differentiation Treatment of Heart Failure Based on "Spleen-mitochondria" and Theory of "Dampness, Turbidity, Phlegm, and Fluid-related Diseases"
Rui ZHANG ; Fuyun JIA ; Jingshun YAN ; Xuan LIU ; Yadong WANG ; Yinan MA ; Yan LIU ; Qiang XU
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(10):265-274
Guided by Academician Zhang Boli's theory of "dampness, turbidity, phlegm, and fluid-related diseases",this paper elaborated on the pathogenesis and syndrome differentiation treatment of heart failure from the perspective of the "spleen-mitochondria". It analyzed the essential similarities between "spleen-mitochondria" and "dampness, turbidity, phlegm, and fluid-related diseases", as well as their close association with the onset of heart failure. Furthermore,it explored the connection between spleen function and mitochondrial function in traditional Chinese medicine (TCM),positing that the spleen's role in transportation and transformation is analogous to mitochondrial material metabolism and energy conversion,with spleen deficiency closely related to mitochondrial dysfunction. It thus concluded that mitochondrial material metabolism and energy conversion represent the microscopic essence of the spleen's role in transportation and transformation,and mitochondrial dysfunction is a contributing factor to pathological products like dampness and turbid phlegm,which are closely associated with the occurrence of heart failure. The four elements of dampness,turbidity,phlegm,and fluid are a series of related symptoms resulting from abnormal fluid transportation and transformation,serving as both factors in the onset of heart failure and the core pathological basis for its deterioration. Therefore,during the treatment of heart failure,it is essential to regulate mitochondrial function. Early intervention should focus on eliminating dampness and turbidity to improve mitochondrial function and restore normal energy metabolism. In the middle and late stages,emphasis should be placed on resolving phlegm,promoting blood circulation,warming Yang,and reducing water retention to alleviate mitochondrial damage and improve cardiac function. Supporting Qi and strengthening the spleen should be a continuous approach,and treatment should be adjusted to enhance mitochondrial function and stabilize the condition,thereby improving prognosis. This paper discussed the role of the spleen and mitochondria in the pathogenesis of heart failure,examined the evolution of heart failure mechanisms from the perspective of dampness, turbidity, phlegm, and fluid-related diseases,and proposed a phased treatment strategy. It enriched the theory of dampness, turbidity, phlegm, and fluid-related diseases and offered new strategies for heart failure treatment. However,in practical application,TCM strategies for treating heart failure need to be integrated with modern medical approaches to provide a more solid scientific foundation for treatment.
2.Preliminary exploration of differentiating and treating multiple system atrophy from the perspective of the eight extraordinary meridians
Di ZHAO ; Zhigang CHEN ; Nannan LI ; Lu CHEN ; Yao WANG ; Jing XUE ; Xinning ZHANG ; Chengru JIA ; Xuan XU ; Kaige ZHANG
Journal of Beijing University of Traditional Chinese Medicine 2025;48(3):392-397
Multiple system atrophy (MSA) is a rare neurodegenerative disease with complex clinical manifestations, presenting substantial challenges in clinical diagnosis and treatment. Its symptoms and the eight extraordinary meridians are potentially correlated; therefore, this article explores the association between MSA symptom clusters and the eight extraordinary meridians based on their circulation and physiological functions, as well as their treatment strategies. The progression from deficiency to damage in the eight extraordinary meridians aligns with the core pathogenesis of MSA, which is characterized by "the continuous accumulation of impacts from the vital qi deficiency leading to eventual damage". Liver and kidney deficiency and the emptiness of the eight extraordinary meridians are required for the onset of MSA; the stagnation of qi deficiency and the gradual damage to the eight extraordinary meridians are the key stages in the prolonged progression of MSA. The disease often begins with the involvement of the yin and yang qiao mai, governor vessel, thoroughfare vessel, and conception vessel before progressing to multiple meridian involvements, ultimately affecting all eight extraordinary meridians simultaneously. The treatment approach emphasizes that "the direct method may be used for joining battle, but indirect method will be needed in order to secure victory" and focuses on "eliminate pathogenic factors and reinforce healthy qi". Distinguishing the extraordinary meridians and focusing on the primary symptoms are pivotal to improving efficacy. Clinical treatment is aimed at the target, and tailored treatment based on careful clinical observation ensures precision in targeting the disease using the eight extraordinary meridians as the framework and core symptoms as the specific focus. Additionally, combining acupuncture, daoyin therapy, and other method may help prolong survival. This article classifies clinical manifestations based on the theory of the eight extraordinary meridians and explores treatment.
3.Clinical Efficacy of TCM Multi-channel Intervention Plus Antagonist Regimen on Ovarian Function,TCM Syndromes and Natural Conception in Poor Ovarian Responders Undergoing IVF-ET
Yunji XU ; Wanting XIA ; Xuan ZHANG ; Qianhong MA ; Jinzhu HUANG ; Qian ZENG
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(9):93-100
ObjectiveTo objectively analyze the effects of traditional Chinese Medicine (TCM) multi-channel intervention on the ovarian function,TCM syndromes and natural conception of poor ovarian responders(kidney-Yin deficiency,liver depression and blood stasis pattern) who planned to receive another in vitro fertilization embryo transfer(IVF-ET)antagonist regimen. MethodThe 128 low-prognosis patients (kidney Yin deficiency,liver depression and blood stasis pattern) who attended the West China Second University Hospital, Sichuan University and the Hospital of Chengdu University of Traditional Chinese Medicine from August 2020 to February 2023 and met the inclusion criteria were selected,and then divided into the treatment group and the control group according to the random number table,with 64 patients in each group. The control group was treated with oral dehydroepiandrosterone(DHEA),while the treatment group was treated with multi-channel TCM(oral TCM decoction + auricular point sticking + Bushen Huoxue prescription through retention enema). After 3 menstrual cycles,the relevant indicators for ovarian function evaluation,TCM syndrome scores and natural conception were collected from both groups. ResultCompared with the situation before treatment,the basal follicle stimulating hormone(bFSH),bFSH/basal luteinizing hormone(bLH),basal estradiol(bE2),antral follicle count(AFC),the number of oocytes obtained,the number of normal fertilization,the number of superior embryos and TCM syndrome scores in the treatment group were improved after treatment(P<0.05,P<0.01). For the control group, the bFSH/bLH and TCM syndrome scores were increased after treatment(P<0.05), while the bFSH,bFSH/bLH,bE2,AFC,the number of oocytes obtained,the number of normal fertilization,and the number of superior embryos showed no significant difference after treatment. Compared with the control group after treatment,bFSH,bFSH/bLH,bE2,AFC,the number of normal fertilization,the number of superior embryos and TCM syndrome scores in the treatment group were better (P<0.05,P<0.01),while there was no significant difference in the number of oocytes obtained. After treatment,there were 3 cases of natural conception in the treatment group,while there were no natural conception in the control group. ConclusionFor patients with poor ovarian response and kidney Yin deficiency,liver depression and blood stasis pattern,multi-channel intervention of TCM plus the antagonist regimen can reduce bFSH,bFSH/bLH values,improve the levels of bE2,increase AFC,the number of oocytes obtained,the number of normal fertilization and the number of superior embryos,improve ovarian function,menstruation and TCM syndromes,improve their quality of life,and even enable some patients to get pregnant naturally before re-progression and improve their pregnancy outcome.
4.Combined Therapies of Traditional Chinese Medicine Treat Low-prognosis Patients Undergoing IVF-ET Again
Xuan ZHANG ; Wanting XIA ; Jinzhu HUANG ; Qianhong MA ; Yunji XU ; Qian ZENG
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(1):160-169
ObjectiveTo objectively evaluate the clinical efficacy of multiple therapies of traditional Chinese medicine (TCM) in low-prognosis patients who received antagonist protocol for in vitro fertilization and embryo transfer (IVF-ET) again. MethodA total of 128 patients with kidney Yin deficiency, liver depression, and blood stasis who planned to receive antagonist protocol for IVF-ET in the West China Second Hospital of Sichuan University were enrolled and assigned into two groups by random number table method. The observation group (64 casces) was treated by oral administration of Chinese medicine decoction + enema of kidney-tonifying and blood-activating method + auricular point sticking + oral administration of dehydroepiandrosterone (DHEA), while the control group (64 casces) was treated by only oral administration of DHEA. After treatment for three menstrual cycles, both groups received the antagonist protocol for IVF-ET. The TCM syndrome scores, basic sex hormone levels, antral follicle count (AFC), the usage of gonadotropin (Gn), endometrial receptivity indicators, embryo quality indicators, and pregnancy outcomes were compared between the two groups. ResultAfter treatment, the observation group showed decreased follicle-stimulating hormone (FSH)/luteinizing hormone (LH) ratio, lowered level of estradiol (E2), increased AFC, decreased amount and days of Gn usage, improved endometrial receptivity indicators (endometrial thickness on trigger and ET days, proportion of endometrial type A in endometrial types and the level of E2 on trigger day) and embryo quality indicators (the rates of mature follicles, fertilization, normal fertilization, and premium embryos), and decreased TCM syndrome scores (P<0.05, P<0.01). Moreover, the observation group had lower FSH/LH ratio, E2 level, and amount of Gn usage, higher AFC, poorer endometrial receptivity and embryo quality indicators, and lower TCM syndrome scores than the control group after treatment (P<0.05, P<0.01). In addition, except for 3 cases of natural pregnancy, the observation group outperformed the control group in terms of improving the clinical pregnancy rates during initiation cycle and transplantation cycle and clinical pregnancy rate and decreasing biochemical pregnancy rate and early abortion rate (P<0.05). ConclusionCombined therapies of TCM can alleviate the clinical symptoms, reduce TCM syndrome scores, reduce the Gn usage amount, improve the number and quality of embryos and endometrial receptivity, and coordinate the synchronous development of endometrium and embryo. In this way, they can increase the clinical pregnancy rate and reduce biochemical pregnancy rate and early abortion rate in the low prognosis patients with kidney yin deficiency, liver depression, and blood stasis who are undergoing IVF-ET again.
5.Mechanism of Yishen Tongluo Prescription in Inhibiting Endoplasmic Reticulum Stress and Improving Apoptosis of Renal Tubular Epithelial Cells Based on PERK/ATF4/CHOP
Xuan SU ; Liang ZHAO ; Mengmeng WANG ; Jing DING ; Zhenqiang ZHANG ; Xiaowei ZHANG ; Jiangyan XU ; Zhishen XIE
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(2):26-36
ObjectiveTo investigate the effect of Yishen Tongluo prescription (YSTLP) on apoptosis of renal tubular epithelial cells and explore the mechanism based on endoplasmic reticulum stress pathway of protein kinase R-like endoplasmic reticulum kinase (PERK)/activating transcription factor 4 (ATF4)/transcription factor C/EBP homologous protein (CHOP). MethodThe db/db mice were randomly divided into model group, valsartan group (10 mg·kg-1), and low, middle, high-dose YSTLP groups (1, 2.5, 5 g·kg-1). Samples were collected after eight weeks of drug intervention. In addition, db/m mice in the same litter served as the control group. Human renal tubular epithelial cells (HK-2) were cultured in vitro and divided into the control group, advanced glycated end-product (AGE) group, and AGE + low, middle, and high-dose YSTLP groups (100, 200, 400 mg·L-1). TdT-mediated dUTP nick end labeling (TUNEL) staining was used to detect the apoptosis rate of HK-2 cells. Methylthiazolyldiphenyl-tetrazolium bromide (MTT) assay was conducted to detect the viability of HK-2 cells. Calcium fluorescence probe staining and luciferase reporter gene method were adopted to detect the luciferase activity of folded protein response element (UPRE) and endoplasmic reticulum stress. Immunohistochemical (IHC) analysis was carried out to measure the protein expressions of phosphorylated PKR (p-PERK), CHOP, and ATF4. Real-time polymerase chain reaction (Real-time PCR) was used to measure the mRNA expression levels of CHOP and X-box binding protein 1 (XBP1) in mouse kidney and HK-2 cells. Western blot was used to detect the protein expression level of p-PERK, PERK, CHOP, ATF4, B-cell lymphoma-2 (Bcl-2), Bcl-2 associated X protein (Bax), and cleaved Caspase-3 in mouse kidney and HK-2 cells. ResultIn the cellular assay, HK-2 cell viability was significantly reduced, and the apoptosis rate was elevated in the AGE group compared with the control group (P<0.01). The mRNA and protein expression levels of apoptosis-related factor Bcl-2 were significantly reduced (P<0.01), and those of Bax were significantly increased (P<0.01). The protein expression level of cleaved Caspase-3 was significantly increased (P<0.01). Compared with the AGE group, YSTLP administration treatment resulted in elevated cell viability and reduced apoptosis rate (P<0.01). The mRNA and protein expression levels of Bcl-2 were significantly elevated in a time- and dose-dependent manner (P<0.01), and those of Bax were significantly reduced in a time- and dose-dependent manner. The protein expression level of cleaved Caspase-3 was significantly reduced in a time- and dose-dependent manner (P<0.01). The intracellular Ca2+ imbalance and UPRE luciferase fluorescence intensity were increased in the AGE group compared with the control group (P<0.01). The mRNA levels of endoplasmic reticulum stress-related factors CHOP and XBP1 were significantly increased (P<0.01), and the protein expression levels of p-PERK, CHOP, and ATF4 were significantly increased (P<0.05). Compared with the AGE group, YSTLP effectively improved intracellular Ca2+ imbalance in HK-2 cells and decreased UPRE luciferase fluorescence intensity in a dose-dependent manner (P<0.01). It reduced the mRNA levels of endoplasmic reticulum stress-related factors CHOP and XBP1 (P<0.01) and the protein expression levels of intracellular p-PERK, CHOP, and ATF4 in a dose- and time-dependent manner (P<0.01). In animal experiments, the protein expression level of Bcl-2 was significantly reduced(P<0.01), and that of cleaved Caspase-3 and Bax was significantly increased in the model group compared with the control group (P<0.05). The protein expression level of Bcl-2 was dose-dependently elevated, and that of cleaved Caspase-3 and Bax was dose-dependently decreased in the YSTLP groups compared with the model group (P<0.01). Compared with the control group, the mRNA expression levels of CHOP and XBP1 were significantly elevated in the model group (P<0.05, P<0.01), and the protein expression levels of p-PERK, CHOP, and ATF4 were significantly increased (P<0.05). Compared with the model group, YSTLP significantly decreased the mRNA expression levels of CHOP and XBP1 (P<0.01) and the protein expression levels of p-PERK, CHOP, and ATF4 (P<0.01). ConclusionYSTLP can effectively inhibit endoplasmic reticulum stress and improve apoptosis of renal tubular epithelial cells, and its mechanism may be related to the regulation of the PERK/AFT4/CHOP pathway.
6.A Preliminary Study on the Construction and Visualization of Knowledge Graph for the Ancient Chinese Medical Book Ling Shu
Ying-Xuan CHEN ; Wei-Hao XIE ; Fan CHEN ; Qian XU ; Rong-Yao LI ; Zhen-Hu CHEN ; Xiu-Feng LIU
Journal of Guangzhou University of Traditional Chinese Medicine 2024;41(3):782-790
Objective To explore the construction and visualization for knowledge graph of Ling Shu(Spiritual Pivot),with a view to providing ideas for the structured storage and display of the theoretical knowledge of the ancient Chinese medical books.Methods Using the professional idea of constructing knowledge graphs for reference,text mining technology was applied to construct the thesaurus,and then word division,entity recognition,and relationship extraction for the original text of Ling Shu were performed to get the elements of knowledge graph construction.The graph database Neo4j was used for the storage and query of the knowledge graph,and then the visual display of the knowledge graph was achieved.Results The 1 216 high-quality words consisting of the thesaurus of Ling Shu were obtained,and the construction of the knowledge graph of the theory of Ling Shu was realized.The constructed knowledge graph basically displayed the traditional Chinese medicine theories such as the correlation of visceral manifestations with essence qi,and the relationship between emotions and the five-zang organs described in Ling Shu,which made the retrieval and utilization of the related entities and relationships possible,and provided ideas for the structured storage and display of the theoretical knowledge of the ancient books of Chinese medicine.Conclusion The knowledge graph construction technology can be used to obtain the Chinese medicine theoretical knowledge graph of Ling Shu,and to display the knowledge connections of yin-yang and the five elements,and the internal organs and meridians expressed in the Ling Shu.The construction of the knowledge graph and its storage in the graph database enable the knowledge graph involved in the text of Ling Shu to be displayed in the form of visualized semantic network graph,and also make the embedding of other search systems such as the semantic search and semantic wiki possible,which will be helpful for the development of Chinese medicine intelligent medical services.
7.Effects of MYD88 overexpression on proliferation and apoptosis of diffuse large B cell lymphoma cells and its mechanism
Piaopiao HU ; Chengrui XUAN ; Hua DU ; Shirong LI ; Lixin WENG ; Ling HAI ; Yunga WU ; Xiaoyan XU
Chinese Journal of Clinical and Experimental Pathology 2024;40(1):44-50
Purpose To investigate the effect of MYD88 gene overexpression on the proliferation and apoptosis of human diffuse large B cell lymphoma(DLBCL)cells,and to prelimi-narily explore the mechanism of MYD88 gene action.Methods PEGFP-C2-MYD88 overexpressing MYD88 L265P gene was transfected into DLBCL cells by plasmid transfection.The exper-iment was divided into blank control group,negative control group and MYD88 L265P overexpression group.The fluores-cence expression of MYD88 L265P after overexpression was ob-served under inverted fluorescence microscope.RT-PCR and Western blot were used to detect the mRNA and protein expres-sion of MYD88 L265P,IRAK4,NF-κB and BCL2 in DLBCL cells before and after overexpression of MYD88 L265.CCK8 method was used to detect DLBCL cells proliferation and Ho-echst staining was used to detect DLBCL cells apoptosis.Re-sults After overexpression of MYD88 L265P,compared with the blank control group(0.670 4±0.017 5)and the negative control group(0.715 3±0.019 6),the MYD88L265P overex-pression group(1.157 2±0.010 2)increased significantly,with statistical significance(all P<0.05).After overexpression of MYD88 L265P,compared with the blank control group(0.69 ±0.04)and the negative control group(0.81±0.07),the MYD88L265P overexpression group(0.48±0.05)was signifi-cantly decreased,with statistical significance(all P<0.05).After overexpression of MYD88 L265P,compared with the blank control group(mRNA:1.0158±0.0115,0.987 3±0.010 2,1.007 6±0.015 3,protein:0.183 4±0.058 9,0.096 8± 0.015 7,0.147 5±0.0418)and negative control group(mR-NA:0.9132±0.0098,1.0032±0.0156,0.9327± 0.011 2,protein:0.187 9±0.042 3,0.088 9±0.0513,0.134 8±0.050 1),the mRNA(3.243 2±0.013 6,2.976 6 ±0.0213,1.585 9±0.019 8)and protein expressions(0.452 7±0.052 4,0.218 9±0.047 5,0.301 4±0.059 8)of IRAK4,NF-κB and anti-apoptosis protein BCL2 in MYD88L265P overexpression group were significantly increased,which was statistically significant(all P<0.05).Conclusion After overexpression of MYD88 L265P,the apoptosis rate of DLBCL cells decreased and the cell proliferation rate increased.The mechanism may be related to the mutation of MYD88 L265P gene,activation and amplification of NF-κB pathway,and pro-motion of the overexpression of antiapoptotic protein BCL2.
8.Exploring the Effect of Shuwei Decoction (舒胃汤) for Rats with Functional Dyspepsia of Liver-Depression and Spleen-Deficiency Syndrome Model on the Ultrastructure of ENS-PDGFRα+ Cell-SMC Network in Gastric Sinusoidal Tissues
Junyao LIANG ; Xuan GUO ; Dexu ZHANG ; Man ZHOU ; Jie XIAO ; Chusen TANG ; Hui FENG ; Yin XU
Journal of Traditional Chinese Medicine 2024;65(12):1269-1278
ObjectiveBased on the ultrastructure of enteric nervous system (ENS)-platelet-derived growth factor receptor α positive (PDGFRα+) cell - smooth muscle cell (SMC) network, the effect and mechanism of Shuwei Decoction (舒胃汤) for rats with functional dyspepsia (FD) of liver-depression and spleen-deficiency syndrome were explored. MethodsFifty SD rats were divided into blank group, model group, low-, medium- and high-dose Shuwei Decoction groups randomly, with 10 rats in each group. The blank group was not set up, and the other 4 groups were set up with the modified composite cause (chronic restraint stress + tail irritation + excessive fatigue + diet disorder) for 21 days, resulting in FD model rats with liver-depression and spleen-deficiency syndrome. After successful modelling, rats in the low-, medium- and high-dose groups were given 3.78, 7.56 and 15.12 g/(kg·d) of Shuwei Decoction by gavage, respectively, while rats in the blank group and the model group were given 10 ml/(kg·d) of saline by gavage; all of them were given gavage once a day for 14 days. Body mass increase were collected before and after gavage, and compared after the experiment; the elevated cross maze experiment was conducted to observe the percentage of staying time and the percentage of times entering the open arm of rats; the gastric emptying rate and small intestinal propulsion rate were measured by black semi-solid paste; HE staining was used to observe histopathology of the gastric antrum; the Western Blotting and RT-qPCR were used to detect the expression levels of PDGFRα, small conductance calcium activated potassium (SK3), and purinergic G protein-coupled receptor P2Y1 (P2Y1 R), and mRNA expression in gastric antrum; immunofluorescence double staining was used to detect the co-localization of PDGFRα with receptor tyrosine kinase (C-kit), protein gene product 9.5 (PGP9.5), Sk3, and smooth muscle cells (SMCs) in gastric sinusoidal tissues; and transmission electron microscopy was used to observe the ultrastructure of the ENS-PDGFRα+ cell-SMC network. ResultsHE staining results showed that the mucosal folds of gastric tissue were clear in all groups, no organic lesions such as bleeding, ulceration and swelling were observed, and the arrangement of gastric glands in the lamina propria of gastric sinusoidal tissues in model group and low-dose Shuwei Decoction group was disordered. The arrangement of gastric glands in lamina propria in medium- and high-dose Shuwei Decoction groups was more orderly, and the lesion degree was less than that in model group and low-dose Shuwei Decoction group. Compared with the blank group, the growth value of body mass, the percentage of open arm retention time, the percentage of times entering the open arm, the small intestine propulsion rate, and the gastric empty rate of rats in the model group significantly decreased after gavage; the expressions of PDGFRα, Sk3, P2Y1 protein and mRNA in gastric sinusoidal tissues decreased; the co-localization expression of PDGFRα with C-kit, Sk3, SMC and PGP9.5 significantly decreased (P<0.05 or P<0.01); the ultrastructure of ENS-PDGFRα+ cell-SMC network was damaged without gap junction. Compared with model group and low-dose Shuwei Decoction group, the growth value of body mass, the percentage of open arm retention time, the percentage of times entering the open arm, the small intestine propulsion rate, and the gastric empting rate of rats in medium- and high-dose Shuwei Decoction groups increased after gavage; the expressions of PDGFRα, Sk3, P2Y1 protein and mRNA in gastric sinusoidal tissues increased; the co-localization expression of PDGFRα with C-kit, Sk3, SMC and PGP9.5 significantly increased (P<0.05 or P<0.01); the ultrastructure of ENS-PDGFRα+ cell-SMC network was intact. Compared with medium-dose Shuwei Decoction group, the protein expressions of PDGFRα, Sk3 and P2Y1, the mRNA expressions of PDGFRα and Sk3, and the co-localization expressions of PDGFRα and C-kit, Sk3, SMC, and PGP9.5 in high-dose Shuwei Decoction group increased (P<0.05 or P<0.01). ConclusionShuwei Decoction can improve the pathological lesion of the gastric antrum in the FD model rats with liver-depression and spleen-deficiency syndrome and increase the gastric emptying rate as well as the small intestinal propusion rate. The mechanism of Shuwei Decoction on FD rats with liver-depression and spleen-deficiency syndrome is related to the protection of the ultrastructural integrity of ENS-PDGFRα+ cell-SMC network.
9.Effects of Electroacupuncture at "Neiguan" (PC6) - "Zhongwan" (RN12) for Rats with Functional Dyspepsia on Gastric Motility and Metabolites of Antral Tissue
Jingying ZHOU ; Hongzhi YIN ; Qian LIU ; Xuan XU ; Yitian LAI ; Guoshan ZHANG ; Huan ZHONG ; Mi LIU
Journal of Traditional Chinese Medicine 2024;65(14):1478-1487
ObjectiveTo investigate the possible mechanism of electroacupuncture at "Neiguan" (PC6) and "Zhongwan" (RN12) in the treatment of functional dyspepsia (FD). MethodsSPF male SD rats were randomly divided into model group, Neiguan (PC6) group, Zhongwan (RN12) group, and Neiguan-Zhongwan (PC6-RN12) group, with 8 rats in each group. Except for the normal group, the other groups of rats were cogavaged with 0.1% sucrose iodoacetamide solution combined with small platform standing training to establish FD rat models. After successful modeling, the rats in the normal group and model group were tied up for 30 min/d for 7 days; the Neiguan group, Zhongwan group, and Neiguan-Zhongwan group were treated with electroacupuncture intervention at "Neiguan" (PC6), "Zhongwan" (RN12), and "Neiguan" - "Zhongwan" (PC6-RN12) acupoints, respectively, using continuous wave, frequency of 2 Hz, current intensity of 1 mA, 30 min/d, and continuous intervention for 7 days. The general condition of rats in each group was observed. After treatment, the body weight and food intake of rats were measured, and the gastric emptying rate was calculated; HE staining was performed on the gastric antrum tissue of rats to observe the histopathologic changes; the expressions of calcitonin gene-related peptide (CGRP) and Ghrelin protein in gastric antrum were detected by Western Blot; the metabolites in gastric antrum tissues were detected by liquid chromatography-mass spectrometry (LC-MS), and differential metabolites were screened by correlation analysis, then Metabo Analyst 5.0 and KEGG databases were used for metabolic pathway analysis. ResultsUnder light microscope, the gastric antrum structure was complete and the glands were abundant. No obvious inflammation and edema were found in gastric mucosa. Compared with the normal group, the body weight, food intake, and gastric emptie rate of rats in model group decreased, the expression of Ghrelin protein decreased and the expression of CGRP protein increased in gastric antrum tissue (P<0.01). Compared with model group, the body weight, food intake, and gastric emptance rate of rats in Neiguan group, Zhongwan group and Neiguan-Zhongwan group all increased, CGRP protein expression decreased in Neiguan group, and Ghrelin protein expression increased and CGRP protein expression decreased in Zhongwan group and Neiguan-Zhongwan group (P<0.01 or P<0.05). Compared with Neiguan-Zhongwan group, Ghrelin protein expression decreased and CGRP protein expression increased in Neiguan group and Zhongwan group (P<0.05 or P<0.01). Metabolomics results showed that compared with normal group, the content of metabolites adenosine diphosphate ribose, adenosine monophosphate and adenosine diphosphate in gastric antrum tissue of model group decreased; compared with model group, the contents of adenosine diphosphate, adenosine diphosphate and citicoline in Neiguan group increased, the contents of nicotine adenine dinucleotide, cytidine diphosphate ethanolamine and citicoline in Zhongwan group increased, and the contents of adenosine diphosphate, cytidine diphosphate and citicoline in Neiguan-Zhongwan group increased (P<0.05 or P<0.01). Compared with model group, the main metabolic pathways of different metabolites in PC6-RN12 group were glycerophospholipid metabolism, taurine and hypotaurine metabolism, purine metabolism, starch and sucrose metabolism. ConclusionElectroacupuncture at “Neiguan” and “Zhongwan” acupoints can effectively regulate gastrointestinal motility and improve FD symptoms in FD rats, and the effect is better than that of "Neiguan" or "Zhongwan" acupoints alone. The mechanism may be related to the influence of related metabolites on energy metabolism, glucose metabolism and nucleotide metabolism, thereby regulating gastrointestinal motility hormones.
10.Neurobiology of N-glycosylation modification and its roles in neurological disorders
Ke-Xing XU ; Meng-Xuan WANG ; Xue-Kun LI
Acta Anatomica Sinica 2024;55(2):241-246
Neurodevelopment and neuronal function are modulated by multiple factors including environment,genetics and epigenetics.As a post-translational modification,N-glycosylation is catalyzed by glycosyltransferase and involves in diverse biological processes.N-glycosylation is abundant in neuronal system,regulates the development and maturation of synapse,and inflammatory response of glial cells.The dysregulation of N-glycosylation induces neurological disorders including Alzheimer's disease,congenital disorders of glycosylation,schizophrenia and epilepsy.In the present review,we have summarized the progresses of N-glycosylation in regulating neuronal and astrocytic function,and its roles in neurological disorders and related mechanisms.


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