1.Mechanisms of Mahuang Lianqiao Chixiaodoutang in Improving Obesity-type Polycystic Ovary Syndrome in Rats Based on PI3K/Akt Signaling Pathway
Shiwei HU ; Biran ZHU ; Jinrong ZHANG ; Luyao RUAN ; Ji KUANG ; Jianghuan HUA ; Zhe LIU ; Yanyue YAO ; Ji WANG ; Min ZHAO
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(8):21-31
ObjectiveTo investigate the mechanisms by which Mahuang Lianqiao Chixiaodoutang (MLC) improves obesity-type polycystic ovary syndrome (PCOS) through the phosphatidylinositol 3-kinase (PI3K)/protein kinase B (Akt) signaling pathway. MethodsThirty-six female Sprague-Dawley (SD) rats were randomly divided into a blank control group (Con) and an obesity-type PCOS model preparation group. The model was induced by gavage with letrozole (1 mg·kg-1) combined with a high-fat diet (HFD). After model establishment, the obesity-type PCOS model preparation group was further divided into the model group (Mod, normal saline), metformin group (Met, 0.3 g·kg-1), low-dose MLC group (MLC-L, 4.3 g·kg-1), medium-dose MLC group (MLC-M, 8.6 g·kg-1), and high-dose MLC group (MLC-H, 17.2 g·kg-1). Active components of MLC and targets of obesity-type PCOS were screened from databases, a protein-protein interaction (PPI) network was constructed, and gene ontology(GO)and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analysis was performed. The gut microbiota structure was analyzed based on 16S rRNA sequencing and correlated with network pharmacology pathways. Body weight and estrous cycle were dynamically monitored. Ovarian morphology was observed by hematoxylin-eosin (HE) staining. Cell apoptosis was detected by terminal deoxynucleotidyl transferase-mediated dUTP nick-end labeling (TUNEL). Enzyme-linked immunosorbent assay (ELISA) was used to detect levels of follicle-stimulating hormone (FSH), luteinizing hormone (LH), anti-Müllerian hormone (AMH), testosterone (T), and estradiol (E2). Western blot was used to detect the protein expression levels of phosphorylated PI3K/PI3K (p-PI3K/PI3K), phosphorylated Akt/Akt (p-Akt/Akt), B-cell lymphoma-2 (Bcl-2), and Bcl-2-associated X protein (Bax). ResultsNetwork pharmacology screening identified 124 active components of MLC and 408 overlapping targets between the herbal formula and the disease. Core targets such as Akt1 and Bcl-2 were revealed. As indicated by 16S rRNA sequencing, the abundances of Lachnospiraceae, Lachnoclostridium, and Dorea were increased in the MLC groups (P<0.05), while the abundance of Veillonella was decreased (P<0.05). KEGG correlation analysis integrating network pharmacology and gut microbiota data showed significant enrichment of the PI3K/Akt signaling pathway. Animal experiments showed that, compared with the Mod group, body weight decreased to normal levels in the Met, MLC-M, and MLC-H groups. The estrous cycle became regular. The number of corpora lutea increased and cystic follicles decreased. Serum levels of T, FSH, and LH/FSH were reduced (P<0.05, P<0.01), while the E2 level was increased (P<0.01). Ovarian cell apoptosis was reduced (P<0.01), and the protein expression levels of p-PI3K/PI3K, p-Akt/Akt, and Bcl-2 in ovarian tissue were significantly increased, whereas Bax protein expression was significantly decreased (P<0.05, P<0.01). ConclusionMLC can regulate gut microbiota structure, effectively improve ovarian pathology in rats with obesity-type PCOS, and inhibit ovarian granulosa cell apoptosis. The mechanism may be associated with upregulation of the PI3K/Akt signaling pathway.
2.Mechanisms of Mahuang Lianqiao Chixiaodoutang in Improving Obesity-type Polycystic Ovary Syndrome in Rats Based on PI3K/Akt Signaling Pathway
Shiwei HU ; Biran ZHU ; Jinrong ZHANG ; Luyao RUAN ; Ji KUANG ; Jianghuan HUA ; Zhe LIU ; Yanyue YAO ; Ji WANG ; Min ZHAO
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(8):21-31
ObjectiveTo investigate the mechanisms by which Mahuang Lianqiao Chixiaodoutang (MLC) improves obesity-type polycystic ovary syndrome (PCOS) through the phosphatidylinositol 3-kinase (PI3K)/protein kinase B (Akt) signaling pathway. MethodsThirty-six female Sprague-Dawley (SD) rats were randomly divided into a blank control group (Con) and an obesity-type PCOS model preparation group. The model was induced by gavage with letrozole (1 mg·kg-1) combined with a high-fat diet (HFD). After model establishment, the obesity-type PCOS model preparation group was further divided into the model group (Mod, normal saline), metformin group (Met, 0.3 g·kg-1), low-dose MLC group (MLC-L, 4.3 g·kg-1), medium-dose MLC group (MLC-M, 8.6 g·kg-1), and high-dose MLC group (MLC-H, 17.2 g·kg-1). Active components of MLC and targets of obesity-type PCOS were screened from databases, a protein-protein interaction (PPI) network was constructed, and gene ontology(GO)and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analysis was performed. The gut microbiota structure was analyzed based on 16S rRNA sequencing and correlated with network pharmacology pathways. Body weight and estrous cycle were dynamically monitored. Ovarian morphology was observed by hematoxylin-eosin (HE) staining. Cell apoptosis was detected by terminal deoxynucleotidyl transferase-mediated dUTP nick-end labeling (TUNEL). Enzyme-linked immunosorbent assay (ELISA) was used to detect levels of follicle-stimulating hormone (FSH), luteinizing hormone (LH), anti-Müllerian hormone (AMH), testosterone (T), and estradiol (E2). Western blot was used to detect the protein expression levels of phosphorylated PI3K/PI3K (p-PI3K/PI3K), phosphorylated Akt/Akt (p-Akt/Akt), B-cell lymphoma-2 (Bcl-2), and Bcl-2-associated X protein (Bax). ResultsNetwork pharmacology screening identified 124 active components of MLC and 408 overlapping targets between the herbal formula and the disease. Core targets such as Akt1 and Bcl-2 were revealed. As indicated by 16S rRNA sequencing, the abundances of Lachnospiraceae, Lachnoclostridium, and Dorea were increased in the MLC groups (P<0.05), while the abundance of Veillonella was decreased (P<0.05). KEGG correlation analysis integrating network pharmacology and gut microbiota data showed significant enrichment of the PI3K/Akt signaling pathway. Animal experiments showed that, compared with the Mod group, body weight decreased to normal levels in the Met, MLC-M, and MLC-H groups. The estrous cycle became regular. The number of corpora lutea increased and cystic follicles decreased. Serum levels of T, FSH, and LH/FSH were reduced (P<0.05, P<0.01), while the E2 level was increased (P<0.01). Ovarian cell apoptosis was reduced (P<0.01), and the protein expression levels of p-PI3K/PI3K, p-Akt/Akt, and Bcl-2 in ovarian tissue were significantly increased, whereas Bax protein expression was significantly decreased (P<0.05, P<0.01). ConclusionMLC can regulate gut microbiota structure, effectively improve ovarian pathology in rats with obesity-type PCOS, and inhibit ovarian granulosa cell apoptosis. The mechanism may be associated with upregulation of the PI3K/Akt signaling pathway.
3.Banxia Xiexin Decoction suppresses malignant phenotypes of colon cancer cells via PARG/PARP1/NF-κB signaling pathway.
Yu-Qing HUANG ; Jia-Mei WANG ; Heng-Zhou LAI ; Chong XIAO ; Feng-Ming YOU ; Qi-Xuan KUANG ; Yi-Fang JIANG
China Journal of Chinese Materia Medica 2025;50(2):496-506
This study aims to delve into the influences and underlying mechanisms of Banxia Xiexin Decoction(BXD) on the proliferation, apoptosis, invasion, and migration of colon cancer cells. Firstly, the components of BXD in blood were identified by UPLC-MS/MS, and subsequently the content of these components were determined by HPLC. Then, different concentrations of BXD were used to treat both the normal intestinal epithelial cells(NCM460) and the colon cancer cells(HT29 and HCT116). The cell viability and apoptosis were examined by the cell counting kit-8(CCK-8) and flow cytometry, respectively. Western blot was employed to determine the expression of the apoptosis regulators B-cell lymphoma-2(Bcl-2) and Bcl-2-associated X(Bax). The cell wound healing assay and Transwell assay were employed to measure the cell migration and invasion, respectively. Additionally, Western blot was employed to determine the expression levels of epithelial-mesenchymal transition(EMT)-associated proteins, including epithelial cadherin(E-cadherin), neural cadherin(N-cadherin), and vimentin. The protein and mRNA levels of the factors in the poly(ADP-ribose) glycohydrolase(PARG)/poly(ADP-ribose) polymerase 1(PARP1)/nuclear factor kappa-B p65(NF-κB p65) signaling pathway were determined by Western blot and RT-qPCR, respectively. The results demonstrated that following BXD intervention, the proliferation of HT29 and HCT116 cells was significantly reduced. Furthermore, BXD promoted the apoptosis, enhanced the expression of Bcl-2, and suppressed the expression of Bax in colon cancer cells. At the same time, BXD suppressed the cell migration and invasion and augmented the expression of E-cadherin while diminishing the expression of N-cadherin and vimentin. In addition, BXD down-regulated the protein and mRNA levels of PARG, PARP1, and NF-κB p65. In conclusion, BXD may inhibit the malignant phenotypes of colon cancer cells by mediating the PARG/PARP1/NF-κB signaling pathway.
Colonic Neoplasms/pathology*
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Drugs, Chinese Herbal/pharmacology*
;
Phenotype
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Signal Transduction/drug effects*
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Cell Proliferation/drug effects*
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Apoptosis
;
Cell Movement/drug effects*
;
Neoplasm Invasiveness
;
HCT116 Cells
;
Proto-Oncogene Proteins c-bcl-2/biosynthesis*
;
Humans
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Poly (ADP-Ribose) Polymerase-1
;
Glycoside Hydrolases
;
bcl-2-Associated X Protein
;
NF-kappa B p50 Subunit
4.Banxia Xiexin Decoction reshapes tryptophan metabolism to inhibit progression of colon cancer.
Yi-Fang JIANG ; Yu-Qing HUANG ; Heng-Zhou LAI ; Xue-Ke LI ; Liu-Yi LONG ; Feng-Ming YOU ; Qi-Xuan KUANG
China Journal of Chinese Materia Medica 2025;50(5):1310-1320
This study explores the effect and mechanism of Banxia Xiexin Decoction(BXD) in inhibiting colon cancer progression by reshaping tryptophan metabolism. Balb/c mice were assigned into control, model, low-dose BXD(BXD-L), and high-dose BXD(BXD-H) groups. Except the control group, the other groups were subcutaneously injected with CT26-Luc cells for the modeling of colon cancer, which was followed by the intervention with BXD. Small animal live imaging was employed to monitor tumor growth, and the tumor volume and weight were measured. Hematoxylin-eosin(HE) staining was used to observe the pathological changes in mouse tumors. Immunohistochemistry was used to detect Ki67 expression in tumors. Immunofluorescence and flow cytometry were used to detect the infiltration and number changes of CD3~+/CD8~+ T cells in the tumor tissue. Enzyme-linked immunosorbent assay(ELISA) was employed to measure the levels of interferon-gamma(IFN-γ) and interleukin-2(IL-2) in tumors. Targeted metabolomics was employed to measure the level of tryptophan(Trp) in the serum, and the Trp content in the tumor tissue was measured. Western blot and RT-qPCR were employed to determine the protein and mRNA levels, respectively, of indoleamine 2,3-dioxygenase 1(IDO1), MYC proto-oncogene, and solute carrier family 7 member 5(SLC7A5) in the tumor tissue. Additionally, a co-culture model with CT26 cells and CD8~+ T cells was established in vitro and treated with the BXD-containing serum. The cell counting kit-8(CCK-8) assay was used to examine the viability of CT26 cells. The content of Trp in CT26 cells and CD8~+ T cells, as well as the secretion of IFN-γ and IL-2 by CD8~+ T cells, was measured. RT-qPCR was used to determine the mRNA levels of MYC and SLC7A5 in CT26 cells. The results showed that BXD significantly inhibited the tumor growth, reduced the tumor weight, and decreased the tumor volume in the model mice. In addition, the model mice showed sparse arrangement of tumor cells, varying degrees of patchy necrosis, and downregulated expression of Ki67 in the tumor tissue. BXD elevated the levels of IFN-γ and IL-2 in the tumor tissue, while upregulating the ratio of CD3~+/CD8~+ T cells and lowering the levels of Trp, IDO1, MYC, and SLC7A5. The co-culture experiment showed that BXD-containing serum reduced Trp uptake by CT26 cells, increased Trp content in CD8~+T cells, enhanced IL-2 and IFN-γ secretion of CD8~+T cells, and down-regulated the mRNA levels of MYC and SLC7A5 in CT26 cells. In summary, BXD can inhibit the MYC/SLC7A5 pathway to reshape Trp metabolism and adjust Trp uptake by CD8~+ T cells to enhance the cytotoxicity, thereby inhibiting the development of colon cancer.
Animals
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Tryptophan/metabolism*
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Colonic Neoplasms/pathology*
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Mice
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Drugs, Chinese Herbal/administration & dosage*
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Mice, Inbred BALB C
;
Humans
;
Cell Line, Tumor
;
Indoleamine-Pyrrole 2,3,-Dioxygenase/metabolism*
;
Female
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Disease Progression
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Cell Proliferation/drug effects*
;
Proto-Oncogene Mas
;
Male
6.Efficacy and safety of acupuncture therapies for adult patients with mild and moderate major depressive disorder: A systematic review and meta-analysis.
Hong-Jun KUANG ; Hui-Sheng YANG ; Yi-Xuan FENG ; Han TANG ; Qi FAN ; Yu-Qin XU ; Shuo CUI ; Richard MUSIL ; Hedi LUXENBURGER ; Yi-Xuan ZHANG ; Hong ZHAO ; Yu-Qing ZHANG
Journal of Integrative Medicine 2025;23(5):471-491
BACKGROUND:
Acupuncture therapy provides a complementary and alternative approach to treating major depressive disorder (MDD), but its efficacy and safety have still not been comprehensively assessed. Recently published systematic reviews remain confusing and inconclusive.
OBJECTIVE:
This systematic review evaluated the efficacy and safety of acupuncture therapy alone or combined with antidepressants for adult patients with mild and moderate MDD.
SEARCH STRATEGY:
Chinese Biomedical Literature Database, China National Knowledge Infrastructure Database, Wanfang Database, Chinese Science and Technology Journal Database, PubMed, Embase, and Cochrane Library were searched from their inceptions to March 2025.
INCLUSION CRITERIA:
Randomized controlled trials that compared acupuncture therapy with antidepressants, or acupuncture therapy plus antidepressants with acupuncture therapy or antidepressants for adult patients with mild and moderate MDD were included.
DATA EXTRACTION AND ANALYSIS:
Five reviewers independently extracted data from original literature using a standardized form, and the data were verified by two reviewers to ensure accuracy. Statistical meta-analyses, publication bias analyses, and subgroup analyses were performed by using Review Manager 5.3 software. The Grading of Recommendations Assessment, Development, and Evaluation approach was used to assess the certainty of the evidence.
RESULTS:
A total of 60 eligible studies including 4675 participants were included. Low-certainty evidence showed that compared with antidepressants, acupuncture therapy (standardized mean difference [SMD] = -0.57; 95% confidence interval [CI] = [-0.87, -0.27]; I2 = 86%; P = 0.006) or acupuncture therapy plus antidepressants (SMD = -1.00; 95% CI = [-1.18, -0.81]; I2 = 77%; P < 0.00001) may reduce the severity of depression at the end of treatment. Low-certainty evidence indicated that compared with acupuncture therapy alone, acupuncture therapy plus antidepressants slightly reduced the severity of depression at the end of treatment (SMD = -0.38; 95% CI = [-0.61, -0.14]; I2 = 18%; P = 0.002). Similar results were also found for acupuncture's relief of insomnia. The reported adverse effects of acupuncture therapy were mild and transient. For most of the subgroup analyses, acupuncture type, scale type, and the course of treatment did not show a significant relative effect.
CONCLUSION
Acupuncture therapy may provide antidepressant effects and relieve insomnia with mild adverse effects for adult patients with mild and moderate MDD. But the certainty of evidence was very low. More high-quality, well designed, large-scale studies with long-term follow-up are needed in the future. Please cite this article as: Kuang HJ, Yang HS, Feng YX, Tang H, Fan Q, Xu YQ, Cui S, Musil R, Luxenburger H, Zhang YX, Zhao H, Zhang YQ. Efficacy and safety of acupuncture therapies for adult patients with mild and moderate major depressive disorder: A systematic review and meta-analysis. J Integr Med. 2025; 23(5):471-491.
Humans
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Acupuncture Therapy/methods*
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Depressive Disorder, Major/therapy*
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Adult
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Antidepressive Agents/therapeutic use*
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Treatment Outcome
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Randomized Controlled Trials as Topic
7.Impact of Temperature Intervention on Pain and Catheterization Outcomes in Premature Infants Undergoing PICC Placement
Yonglin QI ; Fang WANG ; Xiangjuan KUANG ; Lijuan YIN
Journal of Kunming Medical University 2025;46(1):167-172
Objective To investigate the impact of temperature intervention on pain and catheterization outcomes in premature infants undergoing peripherally inserted central catheter(PICC)placement.Methods A total of 70 premature infants who underwent PICC placement and met the inclusion criteria were selected from the Neonatology Department of a tertiary children's hospital in Kunming,Yunnan,from January 2023 to December 2023.They were randomly divided into a control group(n=35)and an observation group(n=35)using a random number table.The control group underwent the standard PICC placement procedure;the observation group underwent temperature intervention measures based on the control group,which included using iodine tincture warmed to 37℃for disinfection,applying warm compresses to the catheterization site with heated hands of the operator,and using saline warmed to 37℃during catheter insertion and skin cleansing.Pain scores measured by the Premature Infant Pain Profile(PIPP),blood oxygen saturation,heart rate,success rates of single puncture and single catheter insertion,incidence of complications,and occurrence of hypothermia post-catheterization were compared between the two groups.Results The PIPP during disinfection,puncture,catheter insertion,and cleansing were significantly lower in the observation group than in the control group(P<0.05);the average blood oxygen saturation in the observation group was higher than that in the control group,with a lower difference compared to the control group(P<0.05);the difference and average heart rate during catheterization in the observation group were both lower than those in the control group(P<0.05);the success rates of single puncture and single catheter insertion,as well as the incidence of hypothermia post-catheterization in the observation group,were both lower than those in the control group(P<0.05),while the comparison of complication rates between the two groups showed no statistically significant difference(P>0.05).Conclusion Implementing temperature intervention during PICC placement in premature infants can effectively reduce pain,maintain stable vital signs,improve the success rates of single puncture and catheter insertion,and effectively prevent the incidence of hypothermia.
8.RNA-seq-based screening of autophagy-related genes during lung infection by highly antibiotic-resistant and highly virulent Staphylococcus aureus
Jinhong Zha ; Qi Kuang ; Chengxi Wu ; Xiaoyu Zhu ; Duo Su ; Lili Zhang ; Meng Lyu ; Lingfei Hu ; Dongsheng Zhou ; Wenhui Yang
Acta Universitatis Medicinalis Anhui 2025;60(9):1689-1696
Objective :
To identify autophagy-related genes involved in pulmonary infection caused by the highly drug-resistant and virulent methicillin-resistant Staphylococcus aureus strain USA300 ( USA300) ,and to explore the underlying molecular mechanisms , thereby providing potential targets for immunotherapy.
Methods:
The GSE220943 dataset of a USA300-induced pulmonary infection mouse model was obtained from the GEO database. Differentially expressed genes ( DEGs ) were identified using the DESeq2 package. Autophagy-related genes ( ARGs) were retrieved from the MSigDB and Autophagy databases.Weighted gene co-expression network analysis ( WGCNA) was performed to construct gene co-expression modules.Genes overlapping among DEGs,ARGs,and WGCNA modules were identified as autophagy-related DEGs.Gene Ontology ( GO) enrichment analysis was con- ducted using the clusterProfiler R package,while Kyoto Encyclopedia of Genes and Genomes ( KEGG) pathway en- richment analysis was performed via the Metascape platform.Immune cell infiltration was analyzed using the Immu- CellAI-mouse website.A protein - protein interaction ( PPI) network was constructed using the STRING database, and hub genes were identified through topological analysis in Cytoscape. Receiver operating characteristic curve ( ROC) curves were plotted via the website https: / /www.bioinformatics.com.cn. Finally,key gene expression was validated in mouse lung tissues by real-time quantitative reverse transcription PCR ( RT-qPCR) .
Results:
A total of 6 135,4 075,3 680,and 2 342 differentially expressed genes ( DEGs) were identified at 12,24,48,and 96 hours post-infection,respectively.By integrating DEGs,autophagy-related genes ( ARGs) ,and WGCNA mod- ules,19 autophagy-related DEGs were identified. GO and KEGG enrichment analyses indicated that these genes were mainly involved in CD4 + T cell activation and regulation,innate immune responses,and autophagosome mem- brane formation.Immune infiltration analysis revealed that innate immune cells such as neutrophils and dendritic cells predominated during the early phase of infection,while γδ T cells and M2 macrophages became more promi- nent in the later stages.PPI network analysis identified 12 hub autophagy-related genes,among which three upreg- ulated key genes ( Eif2ak2,Ikbke,and Nfkbiz) were further confirmed.The area under the ROC curve for all three genes was 1. 000.RT-qPCR validation demonstrated significantly elevated expression of these three genes in lung tissues at 24 hours post-infection ( all P<0. 05) .
Conclusion
Eif2ak2,Ikbke,and Nfkbiz may be involved in the pulmonary infection caused by USA300 by promoting autophagy and hold promise as potential targets for immuno- therapy.
9.Construction of Knowledge Service and Clinical Application System of"Prevention of Disease"in Traditional Chinese Medicine Based on Big Data Convergence
Xiuying KUANG ; Qi YU ; Jinghua LI ; Guoxiang LI ; Xianhong LI ; Weimin ZHAO ; Fan YAO
World Science and Technology-Modernization of Traditional Chinese Medicine 2024;26(1):236-241
Objective To explore the construction idea and application method of knowledge base and knowledge mining system for the prevention and treatment of diseases in traditional Chinese medicine.Methods Guided by the theory of traditional Chinese medicine(TCM),firstly,the knowledge system of TCM Prevention and treatment was sorted out,and the structure and relationship of TCM Prevention and treatment knowledge base were designed according to the classification method of TCM Prevention and treatment;Secondly,according to the needs of pre treatment research,the ancient and modern literature data sources and knowledge collection methods of TCM pre treatment database are proposed;Then,under the framework of the pre treatment classification system,the core knowledge is studied in the aspects of professional annotation,relationship extraction,knowledge audit,and a variety of data mining algorithms are introduced to analyze and mine the knowledge;Finally,the massive data obtained are combined with big data analysis and computer machine learning to realize intelligent information collection,disease analysis and diagnosis and treatment suggestions.Results Under the guidance of traditional Chinese medicine theory,the knowledge base of traditional Chinese medicine for prevention and treatment of diseases can digitize,digitize and intellectualize the basic knowledge and clinical knowledge of traditional Chinese medicine for prevention and treatment of diseases,and can objectively mine and analyze the data,providing a basis for the service and sharing of knowledge of traditional Chinese medicine for prevention and treatment of diseases.Conclusion The knowledge base of TCM Prevention and treatment is an important way for the digital storage of TCM Prevention and treatment knowledge,and provides literature knowledge support and objective evidence of data mining for TCM Prevention and treatment research.
10.Effect of Tongluo Juanbi Granules on Inflammatory Injury and Apoptosis of Osteoarthritis Based on TLR4/MyD88/NF-κB Signaling Pathway
Qi QI ; Liang OU ; Weichen HUANG ; Zehua CHEN ; Daoqing XU ; Weiwei HU ; Jingjing LI ; Jianjun KUANG
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(10):29-36
ObjectiveTo investigate the effects of Tongluo Juanbi granules on chondrocyte apoptosis and Toll-like receptor 4 (TLR4)/myeloid differentiation factor 88 (MyD88)/nuclear factor-κB (NF-κB) signaling pathway of rabbits with knee osteoarthritis (KOA) and study the mechanism of Tongluo Juanbi granules in the prevention and treatment of KOA. MethodThirty New Zealand rabbits were randomly assigned to the following five groups (n=6): sham group, model group, low-dose and high-dose groups of Tongluo Juanbi granules (4.1 and 8.2 g·kg-1·d-1), and celecoxib group (10.9 mg·kg-1·d-1). The KOA model was established by destabilization of the medial meniscus (DMM) for six weeks. Six weeks after the modeling, the drug was given once a day for eight weeks. The pathological changes of cartilago articularis were observed by hematoxylin-eosin (HE) staining and Safranin O-Fast Green staining. Terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL) staining was performed to detect chondrocyte apoptosis. Enzyme-linked immunosorbent assay (ELISA) was used to detect the contents of interleukin-1β (IL-1β) and tumor necrosis factor-α (TNF-α) in synovial fluid. The mRNA and protein expression levels of genes related to the TLR4/MyD88/NF-κB signaling pathway were detected by real-time fluorescence quantitative polymerase chain reaction (Real-time PCR) and Western blot, respectively. ResultCompared with the sham group, the cartilago articularis of the model group significantly degenerated. Mankin's score was increased (P<0.01), and the contents of IL-1β and TNF-α in synovial fluid were increased (P<0.01). The number of apoptosis of chondrocytes was increased (P<0.01). The mRNA and protein expressions of TLR4, MyD88, and NF-κB p65 in cartilage tissue were up-regulated (P<0.01), while the mRNA and protein expressions of Bcl-2 were down-regulated (P<0.01). Compared with the model group, chondrocyte degeneration in both low-dose and high-dose groups of Tongluo Juanbi granules was improved, and Mankin's score was decreased (P<0.01). The contents of IL-1β and TNF-α were decreased (P<0.01), and the number of apoptosis of chondrocytes was decreased (P<0.01). The mRNA and protein expressions of TLR4, MyD88, and NF-κB p65 in cartilage tissue were down-regulated (P<0.01), while the mRNA and protein expressions of Bcl-2 were up-regulated (P<0.01). In addition, in the above observation indicators, the high-dose group of Tongluo Juanbi granules was significantly superior to the low-dose group of Tongluo Juanbi granules. ConclusionTongluo Juanbi granules could inhibit chondrocyte apoptosis in rabbits with KOA and improve cartilage degeneration, which may be related to inhibiting inflammatory responses mediated by TLR4/MyD88/NF-κB signaling pathway.


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