1.Treatment Principles and Paradigm of Diabetic Microvascular Complications Responding Specifically to Traditional Chinese Medicine
Anzhu WANG ; Xing HANG ; Lili ZHANG ; Xiaorong ZHU ; Dantao PENG ; Ying FAN ; Min ZHANG ; Wenliang LYU ; Guoliang ZHANG ; Xiai WU ; Jia MI ; Jiaxing TIAN ; Wei ZHANG ; Han WANG ; Yuan XU ; .LI PINGPING ; Zhenyu WANG ; Ying ZHANG ; Dongmei SUN ; Yi HE ; Mei MO ; Xiaoxiao ZHANG ; Linhua ZHAO
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(5):272-279
To explore the advantages of traditional Chinese medicine (TCM) and integrative TCM-Western medicine approaches in the treatment of diabetic microvascular complications (DMC), refine key pathophysiological insights and treatment principles, and promote academic innovation and strategic research planning in the prevention and treatment of DMC. The 38th session of the Expert Salon on Diseases Responding Specifically to Traditional Chinese Medicine, hosted by the China Association of Chinese Medicine, was held in Beijing, 2024. Experts in TCM, Western medicine, and interdisciplinary fields convened to conduct a systematic discussion on the pathogenesis, diagnostic and treatment challenges, and mechanism research related to DMC, ultimately forming a consensus on key directions. Four major research recommendations were proposed. The first is addressing clinical bottlenecks in the prevention and control of DMC by optimizing TCM-based evidence evaluation systems. The second is refining TCM core pathogenesis across DMC stages and establishing corresponding "disease-pattern-time" framework. The third is innovating mechanism research strategies to facilitate a shift from holistic regulation to targeted intervention in TCM. The fourth is advancing interdisciplinary collaboration to enhance the role of TCM in new drug development, research prioritization, and guideline formulation. TCM and integrative approaches offer distinct advantages in managing DMC. With a focus on the diseases responding specifically to TCM, strengthening evidence-based support and mechanism interpretation and promoting the integration of clinical care and research innovation will provide strong momentum for the modernization of TCM and the advancement of national health strategies.
2.Mechanism of Action of Kaixinsan in Ameliorating Alzheimer's Disease
Xiaoming HE ; Xiaotong WANG ; Dongyu MIN ; Xinxin WANG ; Meijia CHENG ; Yongming LIU ; Yetao JU ; Yali YANG ; Changbin YUAN ; Changyang YU ; Li ZHANG
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(1):20-29
ObjectiveTo investigate the mechanism of action of Kaixinsan in the treatment of Alzheimer's disease (AD) based on network pharmacology, molecular docking, and animal experimental validation. MethodsThe Traditional Chinese Medicine Systems Pharmacology Database and Analysis Platform(TCMSP) and the Encyclopedia of Traditional Chinese Medicine(ETCM) databases were used to obtain the active ingredients and targets of Kaixinsan. GeneCards, Online Mendelian Inheritance in Man(OMIM), TTD, PharmGKB, and DrugBank databases were used to obtain the relevant targets of AD. The intersection (common targets) of the active ingredient targets of Kaixinsan and the relevant targets of AD was taken, and the network interaction analysis of the common targets was carried out in the STRING database to construct a protein-protein interaction(PPI) network. The CytoNCA plugin within Cytoscape was used to screen out the core targets, and the Metascape platform was used to perform gene ontology(GO) functional enrichment analysis and Kyoto encyclopedia of genes and genomes(KEGG) pathway enrichment analysis. The “drug-active ingredient-target” interaction network was constructed with the help of Cytoscape 3.8.2, and AutoDock Vina was used for molecular docking. Scopolamine (SCOP) was utilized for modeling and injected intraperitoneally once daily. Thirty-two male C57/BL6 mice were randomly divided into blank control (CON) group (0.9% NaCl, n=8), model (SCOP) group (3 mg·kg-1·d-1, n=8), positive control group (3 mg·kg-1·d-1 of SCOP+3 mg·kg-1·d-1 of Donepezil, n=8), and Kaixinsan group (3 mg·kg-1·d-1 of SCOP+6.5 g·kg-1·d-1 of Kaixinsan, n=8). Mice in each group were administered with 0.9% NaCl, Kaixinsan, or Donepezil by gavage twice a day for 14 days. Morris water maze experiment was used to observe the learning memory ability of mice. Hematoxylin-eosin (HE) staining method was used to observe the pathological changes in the CA1 area of the mouse hippocampus. Enzyme linked immunosorbent assay(ELISA) was used to determine the serum acetylcholine (ACh) and acetylcholinesterase (AChE) contents of mice. Western blot method was used to detect the protein expression levels of signal transducer and activator of transcription 3(STAT3) and nuclear transcription factor(NF)-κB p65 in the hippocampus of mice. ResultsA total of 73 active ingredients of Kaixinsan were obtained, and 578 potential targets (common targets) of Kaixinsan for the treatment of AD were screened out. Key active ingredients included kaempferol, gijugliflozin, etc.. Potential core targets were STAT3, NF-κB p65, et al. GO functional enrichment analysis obtained 3 124 biological functions, 254 cellular building blocks, and 461 molecular functions. KEGG pathway enrichment obtained 248 pathways, mainly involving cancer-related pathways, TRP pathway, cyclic adenosine monophosphate(cAMP) pathway, and NF-κB pathway. Molecular docking showed that the binding of the key active ingredients to the target targets was more stable. Morris water maze experiment indicated that Kaixinsan could improve the learning memory ability of SCOP-induced mice. HE staining and ELISA results showed that Kaixinsan had an ameliorating effect on central nerve injury in mice. Western blot test indicated that Kaixinsan had a down-regulating effect on the levels of NF-κB p65 phosphorylation and STAT3 phosphorylation in the hippocampal tissue of mice in the SCOP model. ConclusionKaixinsan can improve the cognitive impairment function in SCOP model mice and may reduce hippocampal neuronal damage and thus play a therapeutic role in the treatment of AD by regulating NF-κB p65, STAT3, and other targets involved in the NF-κB signaling pathway.
3.The level of HBV cccDNA in liver tissue and its clinical significance in patients in the convalescence stage of hepatitis B virus-related acute-on-chronic liver failure
Zhekai CAI ; Long XU ; Wenli LIU ; Yingqun XIAO ; Qingmei ZHONG ; Wei ZHANG ; Min WU
Journal of Clinical Hepatology 2025;41(1):57-62
ObjectiveTo investigate the expression level of HBV cccDNA in patients in the convalescence stage of hepatitis B virus-related acute-on-chronic liver failure (HBV-ACLF) and its correlation with HBV markers and liver histopathological changes. MethodsA total of 30 patients in the convalescence stage of HBV-ACL who were hospitalized in The Ninth Hospital of Nanchang from January 2015 to October 2023 were enrolled as liver failure group, and 9 patients with chronic hepatitis B (CHB), matched for sex and age, were enrolled as control group. The content of HBV cccDNA in liver tissue was measured, and its correlation with clinical data and laboratory markers was analyzed. The independent-samples t test or the Mann-Whitney U test was used for comparison of continuous data between two groups, and a one-way analysis of variance or the Kruskal-Wallis H test was used for comparison between multiple groups; the Fisher’s exact test was used for comparison of categorical data between groups. A Spearman correlation analysis was performed. ResultsThe liver failure group had a significantly lower content of HBV cccDNA in liver tissue than the control group (-0.92±0.70 log10 copies/cell vs -0.13±0.91 log10 copies/cell, t=2.761, P=0.009). In the liver failure group, there was no significant difference in the content of HBV cccDNA in liver tissue between the HBeAg-positive patients and the HBeAg-negative patients (P>0.05); there was no significant difference in the content of HBV cccDNA in liver tissue between the patients with different grades (G0-G2, G3, and G4) of liver inflammatory activity (P>0.05); there was no significant difference in the content of HBV cccDNA in liver tissue between the patients with different stages (S0-S2, S3, and S4) of liver fibrosis (P>0.05); there was no significant difference in the content of HBV cccDNA in liver tissue between the patients with negative HBV DNA and those with positive HBV DNA (P>0.05). For the liver failure group, the content of HBV cccDNA in liver tissue was positively correlated with the content of HBV DNA in liver tissue (r=0.426, P=0.043) and was not significantly correlated with the content of HBV DNA in serum (P>0.05). ConclusionThere is a significant reduction in the content of HBV cccDNA in liver tissue in the convalescence stage of HBV-ACLF. HBV cccDNA exists continuously and stably in liver tissue and can better reflect the persistent infection and replication of HBV than HBV DNA in serum and liver tissue.
4.Effect of Shenqi Yiliu Formula (参芪抑瘤方) Drug-Containing Serum on the Cycle of Gastric Cancer Cell AGS and Wnt/β-Catenin Pathway
Na WEI ; Chongyuan GUO ; Min BAI ; Yaorong AN ; Sichao ZHANG ; Liyang WU ; Yongqiang DUAN
Journal of Traditional Chinese Medicine 2025;66(4):399-406
ObjectiveTo investigate the potential mechanism of Shenqi Yiliu Formula (参芪抑瘤方) in treating precancerous lesions of gastric cancer (PLGC) by the Wnt/β-catenin signaling pathway. MethodsThe CCK-8 assay was used to determine the optimal intervention time for Shenqi Yiliu Formula drug-containing serum and the concentration of the Wnt/β-catenin pathway inhibitor XAV939 depends on the survival rate of AGS gastric cancer cell line. AGS cells were divided into the gastric cancer cell group (15% blank serum), inhibitor group (selected concentration of XAV939), high-dose Shenqi Yiliu Formula group (12% Shenqi Yiliu Formula drug-containing serum + 3% blank serum), medium-dose Shenqi Yiliu Formula group (6% Shenqi Yiliu Formula drug-containing serum + 9% blank serum), and low-dose Shenqi Yiliu Formula group (3% Shenqi Yiliu Formula drug-containing serum + 12% blank serum). Each group was tested in triplicate. After culturing for 24 and 48 hours, cell migration and invasion were assessed by scratch assays; after a selected intervention period (48 hours), cell cycle distribution was analyzed using flow cytometry, Ki67 protein levels were detected by immunofluorescence, the protein levels of Wnt, β-catenin, GSK-3β, and intranuclear T-cell specific factor(TCF) were measured by the protein immunoblotting assay, and the mRNA expressions of these above factors were determined by quantitative real-time PCR. ResultsThe optimal intervention time for Shenqi Yiliu Formula drug-containing serum was determined to be 48 hours, and the effective concentration of XAV939 was 20 μmol/L. Compared with the gastric cancer cell group, Shenqi Yiliu Formula at all doses reduced the cell migration rate at 24 and 48 hours (P<0.05), except for the low-dose group at 24 hours. Compared to the low-dose group at corresponding time points, high- and medium-dose Shenqi Yiliu Formula groups showed significantly reduced migration rates, particularly the high-dose group at 48 hours (P<0.05). Compared with the gastric cancer cell group, the high-dose Shenqi Yiliu Formula and inhibitor groups exhibited reduced protein and mRNA levels of Wnt, β-catenin, and TCF, along with reduced Ki67 protein levels and a decreased proportion of cells in the S and G2 phases of the cell cycle, but GSK-3β protein levels, GSK-3β mRNA expression, and the proportion of cells in the G1 phase increased (P<0.05). Compared to the inhibitor group, the high-dose Shenqi Yiliu Formula group showed a decreased proportion of G1-phase cells and an increased proportion of G2-phase cells (P<0.05), although differences in Wnt and β-catenin protein levels and mRNA expressions were not statistically significant (P>0.05). ConclusionShenqi Yiliu Formula drug-containing serum inhibits the migration and invasion of gastric cancer AGS cells and block the cell cycle at G1 phase, and its underlying mechanism may be related to the regulation of the Wnt/β-catenin signaling pathway.
5.Processing History and Modern Research of Jianghuanglian: A Review
Ying LI ; Yun WANG ; Zhe JIA ; Lin YAN ; Min JIN ; Cun ZHANG
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(6):275-282
Jianghuanglian is one of the representative processed products of Coptidis Rhizoma for treating cold syndrome with drugs of heat nature, and ginger is used to restrict the bitter cold of Coptidis Rhizoma, which can be traced back to Bojifang, and it is suitable for stagnation of damp-heat in middle-jiao, cold-heat mutual knots and other symptoms. Jianghuanglian retains the alkaloids, phenylpropanoids and flavonoids of Coptidis Rhizoma, and also introduces gingerol components such as 6-gingerol in ginger, which has pharmacological activities such as anti-inflammatory, antibacterial, anti-tumor, and improving gastrointestinal function. The 2020 edition of Chinese Pharmacopoeia and many local processing specifications have included the traditional processing process and quality standards of Jianghuanglian, but the specific process parameters and quality standards are incomplete, which limits the production and clinical application of this processed product. By summarizing the processing history, process research, quality evaluation, pharmacodynamic and medicinal property changes and application of Jianghuanglian in the past 20 years, there are differences in the processing methods and standards in various provinces and cities, which are mainly reflected in the preparation method, dosage, processing process and quantitative standards of ginger juice. In addition, there are also certain differences in the changes of the main components of Jianghuanglian prepared from ginger or dried ginger, as well as their efficacy and medicinal properties. The research on the processing process of Jianghuanglian plays an important role in improving its quality standards, and this review can provide a reference for improving the quality evaluation system of Jianghuanglian.
6.Effect of a novel initiation model on initiating behavioral requests in children with autism spectrum disorder
Guanzhu ZHANG ; Qiaoyun LIU ; Min LIU ; Yuexin ZHANG ; Lian XU
Chinese Journal of Rehabilitation Theory and Practice 2025;31(2):136-140
ObjectiveTo explore the effect of a novel initiation model on initiating behavioral requests in children with autism spectrum disorder (ASD). MethodsFrom November to December, 2022, 44 children with ASD were selected from Jiaxing Sunlight Rehabilitation Kindergarten, and divided into prelinguistic group (n = 23) and linguistic group (n = 21) according to the language function. The initiation-requested skills, and types and frequency of initiation-requested behaviors were observed under the novel initiation model and the conventional initiation model. ResultsBoth the groups scored higher in the novel initiation model than in the conventional initiation model for initiation-requested skills (|t| > 2.794, P < 0.05) and types of initiation-requested behaviors (|t| > 3.697, P < 0.01), and it increased for the frequency of the use of two- and three-behavioral initiation of requests (χ2 > 7.986, P < 0.05). ConclusionThe novel initiation model can improve initiation request skills in children with ASD.
7.Mechanism of Ruyan Neixiao Cream in Promoting Ferroptosis in Breast Precancerous Lesion Cells by Regulating Nrf2/SLC7A11/GPX4 Signaling Pathway
Haotian ZHANG ; Yebei QIU ; Ran SU ; Xianxin YAN ; Min MA
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(7):98-107
ObjectiveTo explore the mechanism by which Ruyan Neixiao cream (RUC) induces ferroptosis in breast precancerous lesion (BPL) cells, and to enrich the theoretical foundation for its use in the treatment of BPL. MethodsThe inhibition of cell proliferation by 1%, 2%, and 4% concentrations of Ruyanneixiao Cream transdermal solution (RUT) was assessed using cell counting kit-8 (CCK-8) and a colony formation assay. Reactive oxygen species (ROS) were measured using the DCFH-DA probe, and the levels of ferrous ions (Fe2+), glutathione (GSH), and malondialdehyde (MDA) were determined using appropriate kits. Lipid peroxidation was detected with the C11-BODIPY581/591 fluorescent probe. The expression of nuclear factor E2-related factor 2 (Nrf2), solute carrier family 7 member 11 (SLC7A11), and glutathione peroxidase 4 (GPX4) proteins was analyzed by Western blot. The BPL rat model was constructed using 2,2′-bis(hydroxymethyl)butyric acid (DMBA) combined with estrogen and progesterone, and the rats were treated with RUC for external application. After the 12th cycle, the rats were euthanized, and histopathological changes in breast tissue were observed by hematoxylin-eosin (HE) staining. Fe2+ and MDA levels in breast tissue were measured using corresponding kits. The expression of Nrf2, SLC7A11, and GPX4 proteins in BPL rat breast tissue was detected by immunohistochemistry (IHC) and Western blot. ResultsCompared with the matrix group, the cell viability of MCF-10AT cells in the 1%, 2%, and 4% RUT groups was significantly reduced (P<0.05) in a concentration-dependent manner, with the 24-hour half inhibitory concentration (IC50) being 2.23%. Compared with the 4% RUT group, cell viability in the RUT + Fer-1 group was significantly increased (P<0.05). Compared with the matrix group, the colony formation rates of MCF-10AT cells in the 1%, 2%, and 4% RUT groups were significantly decreased (P<0.05). Compared with the 4% RUT group, the cell colony formation rate of the RUT + Fer-1 group was significantly increased (P<0.05). Compared with the matrix group, the levels of ROS and Fe2+ in the 1%, 2%, and 4% RUT groups were significantly increased (P<0.05), while GSH levels were significantly decreased (P<0.05), and MDA and lipid peroxidation levels were significantly increased (P<0.05). Compared with the 4% RUT group, ROS and Fe2+ levels in the RUT + Fer-1 group were significantly reduced (P<0.05), while GSH levels were significantly increased (P<0.05), and MDA and lipid peroxidation levels were significantly reduced (P<0.05). Compared with the matrix group, the protein expression levels of Nrf2, SLC7A11, and GPX4 in the 1%, 2%, and 4% RUT groups were significantly decreased (P<0.05). Compared with the 4% RUT group, the protein expression levels of Nrf2, SLC7A11, and GPX4 in the RUT + Fer-1 group were significantly increased (P<0.05). In the in vivo experiment, compared with the matrix group, the breast tissue histopathological status of the BPL rats in the RUC group was effectively improved, with less dilatation of the mammary ducts and more orderly duct arrangement. No pathological morphology indicative of invasive cancer was observed. Compared with the matrix group, Fe2+ and MDA levels in the mammary tissue of the RUC group were significantly increased (P<0.05). Compared with the matrix group, the protein expression levels of Nrf2, SLC7A11, and GPX4 in the mammary tissue of the RUC group were significantly reduced (P<0.05). ConclusionRUC may induce ferroptosis in BPL cells by inhibiting the Nrf2/SLC7A11/GPX4 signaling pathway, increasing Fe2+ accumulation, and promoting lipid peroxidation.
8.Mechanism of Ruyan Neixiao Cream in Promoting Ferroptosis in Breast Precancerous Lesion Cells by Regulating Nrf2/SLC7A11/GPX4 Signaling Pathway
Haotian ZHANG ; Yebei QIU ; Ran SU ; Xianxin YAN ; Min MA
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(7):98-107
ObjectiveTo explore the mechanism by which Ruyan Neixiao cream (RUC) induces ferroptosis in breast precancerous lesion (BPL) cells, and to enrich the theoretical foundation for its use in the treatment of BPL. MethodsThe inhibition of cell proliferation by 1%, 2%, and 4% concentrations of Ruyanneixiao Cream transdermal solution (RUT) was assessed using cell counting kit-8 (CCK-8) and a colony formation assay. Reactive oxygen species (ROS) were measured using the DCFH-DA probe, and the levels of ferrous ions (Fe2+), glutathione (GSH), and malondialdehyde (MDA) were determined using appropriate kits. Lipid peroxidation was detected with the C11-BODIPY581/591 fluorescent probe. The expression of nuclear factor E2-related factor 2 (Nrf2), solute carrier family 7 member 11 (SLC7A11), and glutathione peroxidase 4 (GPX4) proteins was analyzed by Western blot. The BPL rat model was constructed using 2,2′-bis(hydroxymethyl)butyric acid (DMBA) combined with estrogen and progesterone, and the rats were treated with RUC for external application. After the 12th cycle, the rats were euthanized, and histopathological changes in breast tissue were observed by hematoxylin-eosin (HE) staining. Fe2+ and MDA levels in breast tissue were measured using corresponding kits. The expression of Nrf2, SLC7A11, and GPX4 proteins in BPL rat breast tissue was detected by immunohistochemistry (IHC) and Western blot. ResultsCompared with the matrix group, the cell viability of MCF-10AT cells in the 1%, 2%, and 4% RUT groups was significantly reduced (P<0.05) in a concentration-dependent manner, with the 24-hour half inhibitory concentration (IC50) being 2.23%. Compared with the 4% RUT group, cell viability in the RUT + Fer-1 group was significantly increased (P<0.05). Compared with the matrix group, the colony formation rates of MCF-10AT cells in the 1%, 2%, and 4% RUT groups were significantly decreased (P<0.05). Compared with the 4% RUT group, the cell colony formation rate of the RUT + Fer-1 group was significantly increased (P<0.05). Compared with the matrix group, the levels of ROS and Fe2+ in the 1%, 2%, and 4% RUT groups were significantly increased (P<0.05), while GSH levels were significantly decreased (P<0.05), and MDA and lipid peroxidation levels were significantly increased (P<0.05). Compared with the 4% RUT group, ROS and Fe2+ levels in the RUT + Fer-1 group were significantly reduced (P<0.05), while GSH levels were significantly increased (P<0.05), and MDA and lipid peroxidation levels were significantly reduced (P<0.05). Compared with the matrix group, the protein expression levels of Nrf2, SLC7A11, and GPX4 in the 1%, 2%, and 4% RUT groups were significantly decreased (P<0.05). Compared with the 4% RUT group, the protein expression levels of Nrf2, SLC7A11, and GPX4 in the RUT + Fer-1 group were significantly increased (P<0.05). In the in vivo experiment, compared with the matrix group, the breast tissue histopathological status of the BPL rats in the RUC group was effectively improved, with less dilatation of the mammary ducts and more orderly duct arrangement. No pathological morphology indicative of invasive cancer was observed. Compared with the matrix group, Fe2+ and MDA levels in the mammary tissue of the RUC group were significantly increased (P<0.05). Compared with the matrix group, the protein expression levels of Nrf2, SLC7A11, and GPX4 in the mammary tissue of the RUC group were significantly reduced (P<0.05). ConclusionRUC may induce ferroptosis in BPL cells by inhibiting the Nrf2/SLC7A11/GPX4 signaling pathway, increasing Fe2+ accumulation, and promoting lipid peroxidation.
9.Troxerutin modulates nuclear factor-kappaB signaling pathway to inhibit brain injury and neuronal apoptosis in cerebral infarction rats
Zhezhe LIU ; Meiqing YU ; Tingting WANG ; Min ZHANG ; Baiyan LI
Chinese Journal of Tissue Engineering Research 2025;29(6):1137-1143
BACKGROUND:Troxerutin has been found to have a significant ameliorative effect on brain disorders,but there are fewer studies on the effects of troxerutin on the treatment of cerebral infarction and on neuronal cells. OBJECTIVE:To investigate the mechanism by which troxerutin regulates nuclear factor-κB signaling pathway to reduce brain injury and neuronal apoptosis in cerebral infarction rats. METHODS:Fifty clean grade rats were randomized into healthy group,model group,and troxerutin+nuclear factor-κB agonist group,troxerutin group,and nuclear factor-κB inhibitor group.Except for the healthy group,all other groups were used to establish a rat model of cerebral infarction by arterial ligation.The healthy and model groups were treated once a day with an equal amount of physiological saline by gavage.The troxerutin+nuclear factor-κB agonist group was intervened with 72 mg/kg troxerutin by gavage+20 mg/kg RANK intraperitoneally.The troxerutin group was treated with 72 mg/kg troxerutin by gavage.The nuclear factor κB inhibitor group was intervened intraperitoneally with 120 mg/kg nuclear factor κB inhibitor pyrrolidine disulfiram.Administration in each group was given once a day for 30 continuous days.Zea-longa was used to detect neurological damage in rats,hematoxylin-eosin staining was used to observe pathological changes,TUNEL was used to detect neuronal apoptosis,and immunoblotting and PCR were used to detect the expression of nuclear factor-κB p65 and nuclear factor-κB p50 at protein and mRNA levels,respectively. RESULTS AND CONCLUSION:Compared with the healthy group,the neurological function score,neuronal apoptosis rate,nuclear factor-κB p65,nuclear factor-κB p50 mRNA and protein expression levels were elevated in the model group(P<0.05).Compared with the model group,the neurological function score,neuronal apoptosis rate,nuclear factor-κB p65 and nuclear factor-κB p50 mRNA and protein expression levels were decreased in the troxerutin+nuclear factor-κB agonist group(P<0.05).Compared with the troxerutin+nuclear factor-κB agonist group,the neurological function score,neuronal apoptosis rate,nuclear factor-κB p65 and nuclear factor-κB p50 mRNA and protein expression levels were reduced in the troxerutin group and nuclear factor-κB inhibitor group(P<0.05).In addition,there was no difference between the troxerutin group and the nuclear factor-κB inhibitor group(P>0.05).In the model group,there was a large number of cytoplasmic vacuolation,obvious edema and necrosis,and a large number of inflammatory cell infiltrations.In the troxerutin+nuclear factor-κB agonist,the swelling of brain tissue was reduced,and reticulate structures and condensed cells were reduced,still with some edema.In the troxerutin group and nuclear factor-κB inhibitor group,brain tissue swelling,neuronal edema degeneration,cytoplasmic vacuolation and neuronal nucleus consolidation were reduced,and the inflammatory cell infiltration was significantly decreased.To conclude,troxrutin can reduce the expression of neurological impairment,inhibit neuronal apoptosis and improve the pathological injury of brain tissue in rats with cerebral infarction,and its mechanism of action may be related to the modulation of nuclear factor-κB expression and related signaling pathways.
10.Cistanoside A mediates p38/MAPK pathway to inhibit osteoclast activity
Yueyao LI ; Min ZHANG ; Jiaju YANG
Chinese Journal of Tissue Engineering Research 2025;29(6):1144-1151
BACKGROUND:Cistanoside A has the effects of anti-inflammation,antioxidation,antioxidation,reducing renal damage and anti-osteoporosis,but its effect on osteoclast differentiation,function and its underlying molecular mechanisms remain unclear. OBJECTIVE:To investigate the effect of Cistanoside A on osteoclast differentiation and bone resorption induced by receptor activator of nuclear factor kappa-B ligand(RANKL)in vitro and its mechanism. METHODS:Bone marrow macrophages were obtained from the femur and tibia of 4-6-week-old C57BL/6 mice.The cytotoxic effect of Cistanoside A(5,10,20,40,80,and 160 μmol/L)on bone marrow macrophage viability was examined using the cell counting kit-8 assay kit.Tartrate-resistant acid phosphatase staining was performed to observe the effect of different concentrations of Cistanoside A on osteoblast differentiation and its effective intervention concentration was determined.There was positive control group,Cistanoside A low,medium,and high dose groups(40,80,and 160 μmol/L).After cell attachment,50 ng/mL RANKL was added to induce osteoblast differentiation,and the corresponding dose of Cistanoside A was added to the Cistanoside A low,medium,and high dose groups,respectively.F-actin ring and 2-(4-Amidinophenyl)-6-indolecarbamidine dihydrochloride staining were performed to detect the effects of Cistanoside A on the formation of osteoclasts.Toluidine blue staining of bone abrasion slices was used to observe the effects of Cistanoside A on bone resorption function of osteoclasts.The expression of upstream and downstream proteins of the JNK/MAPK pathway was detected by Western blot.The expression of genes related to osteoclast differentiation and bone resorption function such as tartrate-resistant acid phosphatase,DC-STAMP,Nfatc-1,Ctsk and c-Fos was detected by RT-qPCR. RESULTS AND CONCLUSION:Tartrate-resistant acid phosphatase staining,F-actin ring staining and resorption pit assay showed that Cistanoside A significantly inhibited RANKL-induced osteoclast differentiation and bone resorption in a dose-dependent manner compared with the positive control group.The results of RT-qPCR showed that compared with the positive control group,both high and low dose groups of Cistanoside A could significantly downregulate the mRNA expression of tartrate-resistant acid phosphatase,DC-STAMP,Nfatc-1,Ctsk and c-Fos in a dose-dependent manner.The results of western blot assay showed that the high dose group of Cistanoside A significantly inhibited the expression of p-JNK protein at 10,20,30 and 60 minutes of intervention;compared with the positive control group,Cistanoside A significantly inhibited the expression of Nfatc1 and c-Fos proteins in a dose-dependent manner.To conclude,Cistanoside A could inhibit the formation and bone resorption of osteoclasts by reducing the level of p-JNK protein,inhibiting the activation of MAPK pathway and the expression of key genes in osteoclasts.

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