1.A study on the preparation of a BGN-loaded thermosensitive adhesive and its performance in barrier membrane fixation
WANG Yuzhu ; GU Junting ; LI Zhiting ; BAI Que ; DANG Gaopeng ; WANG Yifei ; SUN Xiaotang ; NIU Lina ; FANG Ming
Journal of Prevention and Treatment for Stomatological Diseases 2026;34(1):41-53
Objective:
To investigate the barrier membrane fixation performance and enhanced guided bone regeneration (GBR) capability of a thermosensitive adhesive containing bioactive glass nanoparticles in order to provide a novel solution for membrane fixation during GBR procedures.
Methods:
M2NP@BGN (methoxyethyl acrylate-co-N-isopropylacrylamide-co-protocatechuic acid@Bioactive glass nanoparticle), a thermosensitive adhesive, was synthesized via free radical polymerization by compositing methoxyethyl acrylate, N-isopropylacrylamide, and protocatechuic acid into a basic adhesive that was modified with bioactive glass nanoparticle (BGN). The successful fabrication of basic adhesive M2NP was characterized by attenuated total reflection-Fourier transform infrared spectroscopy and nuclear magnetic resonance spectroscopy. The thermosensitive adhesive M2NP@BGN (BGN concentration of 1 mg/mL) was characterized by scanning electron microscopy and a rheometer. By adjusting the BGN concentration (0.1 mg/mL, 0.5 mg/mL, 1 mg/mL, and 2 mg/mL), the adhesive and mechanical strengths were investigated with a universal testing machine. Biocompatibility was evaluated with a cell counting kit-8 assay and hemolysis test to identify the optimal formulation. The optimal material’s extract was co-cultured with mouse bone marrow mesenchymal stem cells, and its osteogenic activity was examined in vitro by quantitative real-time PCR, alkaline phosphatase, and alizarin red S staining. The rat mandibular defect model was established, filled with bone graft, and divided into 3 groups based on membrane fixation method: M2NP@BGN (BGN concentration of 1 mg/mL) fixation group (M2NP@BGN), titanium nail fixation group (Nail), and unfixed control group (Negative). Bone regeneration was analyzed after 8 weeks by micro computed tomography and histological staining.
Results:
M2NP@BGN (BGN concentration of 1 mg/mL) was successfully synthesized and demonstrated rapid gelation under warm, humid conditions. The adhesive with a BGN concentration of 1 mg/mL exhibited the highest adhesive strength (P < 0.001) and significantly enhanced mechanical strength (P < 0.001) under 37℃ wet conditions. All formulations showed excellent biocompatibility, with cell viability > 80% and hemolysis ratio < 5%. M2NP@BGN (BGN concentration of 1 mg/mL) significantly upregulated the expression of Runx2 and Col I (P < 0.001) and enhanced the activity of osteogenic differentiation markers (P < 0.05). In the animal model, the M2NP@BGN group (BGN concentration of 1 mg/mL) achieved significantly higher bone volume fraction and better bone maturity compared to the negative and nail groups (P < 0.05).
Conclusion
M2NP@BGN (BGN concentration of 1 mg/mL) combines excellent wet adhesion with potent osteogenic activity, enhances the bone augmentation efficacy of membranes, and presents a novel fixation strategy with significant clinical translation potential for GBR therapy.
2.Regulation of Relevant Signaling Pathways by Traditional Chinese Medicine in Intervention of Pancreatic Cancer: A Review
Quanyou ZHAO ; Conghui ZHAO ; Yu ZHANG ; Yiping FU ; Yuting LIU ; Xiaoran WANG ; Zhanzhan LI ; Mingsan MIAO ; Li BAI
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(5):280-289
Pancreatic cancer is a highly malignant solid tumor of the digestive system with extremely poor treatment prognosis. Although its incidence rate is low, its mortality rate is extremely high. In recent years, the number of diagnosed cases worldwide has continued to rise, making pancreatic cancer the sixth leading cause of cancer-related deaths globally. Currently, clinical treatment primarily relies on operation and chemotherapy to suppress tumors. However, these approaches face challenges such as suboptimal efficacy, high postoperative recurrence rates, and severe adverse reactions. Therefore, identifying safe and effective treatment modalities remains a pressing challenge for the medical community. In recent years, research on traditional Chinese medicine (TCM) interventions for pancreatic cancer has increased significantly. Multiple studies have shown that single-herb TCM, TCM formulas, and their derived single compounds can regulate the levels of tumor cell signaling pathways through multiple action targets. They inhibit the development and progression of pancreatic cancer by inhibiting cancer cell proliferation, promoting cell apoptosis, inhibiting tumor angiogenesis, reducing cancer cell invasion and migration capabilities, regulating the cell cycle, and modulating the tumor microenvironment. Additionally, TCM has the advantages of significantly enhancing the anticancer efficacy of chemotherapy drugs and causing fewer adverse reactions. However, the specific action mechanisms by which TCM intervenes in pancreatic cancer remain unclear. Further extensive research is still needed to validate the role of regulating classical signaling pathways such as phosphoinositide 3-kinase (PI3K)/protein kinase B (Akt)/mammalian target of rapamycin (mTOR), Wnt/β-catenin, nuclear transcription factor-κB (NF-κB), notch, and hedgehog in the treatment of pancreatic cancer. Therefore, this paper reviewed Chinese and international studies on TCM intervention in pancreatic cancer through relevant signaling pathways in recent years, summarized the potential action mechanisms of TCM in the treatment of pancreatic cancer, and provided references for related research in the future.
3.Mechanism of Sangpi Zhike Prescription in Treating Cough After Respiratory Syncytial Virus Infection Based on "Lung-intestine Co-treatment" Theory
Chuang SUO ; Xiaohong BAI ; Zhitong YU ; Xue GONG ; Chan XIU ; Qihui LYU ; Zhihui LIU ; Kelin LI
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(4):126-137
ObjectiveTo explore the mechanism of Sangpi Zhike prescription in treating cough after respiratory syncytial virus (RSV) infection through the "lung-intestine co-treatment" approach using network pharmacology and animal experimental validation. MethodsActive ingredients and targets of Sangpi Zhike prescription were retrieved from the Traditional Chinese Medicine Systems Pharmacology (TCMSP) database. Disease targets were obtained from GeneCards and Online Mendelian Inheritance in Man(OMIM) databases. Protein-protein interaction (PPI) networks and drug-component-target networks were constructed using overlapping targets between drugs and diseases to identify core targets. Gene ontology(GO) and Kyoto encyclopedia of genes and genomes(KEGG) pathway enrichment analyses were performed on the overlapping targets. Sixty mouse models were established: 10 as the normal group, and the remaining mice were infected with RSV via slow nasal drip of RSV suspension, with cough induced using capsaicin solution. After modeling, mice were divided into a model group, a Montelukast Sodium group (1 mg·kg-1·d-1), and low, medium, and high dose groups of Sangpi Zhike prescription (4.875,9.75,and 19.5 g·kg-1·d-1), with 10 mice per group. From day 14 after RSV infection, the normal and model groups received saline via gavage, while other groups received corresponding drug treatments once daily for 5 d. Hematoxylin-eosin(HE) staining was used to observe pathological changes in lung and intestinal tissue. The protein content of extracellular signal-regulated kinase 1/2 (ERK1/2) and phosphorylated (p)-ERK1/2 in the lung and colon tissue of mice was detected by Western blot. Real-time polymerase chain reaction(Real-time PCR) detected ERK1/2 mRNA expression in lung and intestinal tissue. Immunohistochemistry assessed p-MEK1/2, p-ERK1/2, p-c-Fos protein levels, and inflammatory cytokines interleukin(IL)-4 and (TNF)-α in lung and colon tissue. ResultsNetwork pharmacology identified 184 active ingredients and 684 targets in Sangpi Zhike prescription, with 1 344 RSV-related disease targets and 209 overlapping targets. Core targets included TNF, Fos, and Jun. KEGG enrichment revealed 179 pathways, primarily mitogen-activated protein kinase(MAPK), cancer, TNF, and IL-17 signaling pathways. Animal experiments showed that, compared to those of the normal group, the lung tissue sections of the model group showed typical inflammatory damage, infiltration of inflammatory cells, rupture of alveolar septa, extensive alveolar fusion, and disruption of tight junctions between single-layer columnar epithelial cells in the intestinal tissue. The values of p-ERK1/2 and ERK1/2 in lung and intestinal tissue were significantly increased (P<0.01), and the expression level of ERK1/2 mRNA was significantly elevated (P<0.01). The levels of ERK1/2, p-MEK1/2, p-ERK1/2, p-c-Fos, IL-4, and TNF-α along the ERK pathway were significantly increased (P<0.05, P<0.01). Compared to the model group, Sangpi Zhike prescription groups showed reduced lung and intestinal inflammation, decreased p-ERK1/2/ERK1/2 ratios (P<0.05,P<0.01), lower ERK1/2 mRNA levels, and downregulated ERK pathway proteins (P<0.05,P<0.01). ConclusionSangpi Zhike prescription alleviates cough and intestinal symptoms after RSV infection via the "lung-intestine co-treatment" mechanism by suppressing expression levels of ERK1/2, p-MEK1/2, p-ERK1/2, p-c-Fos, IL-4, and TNF-α on ERK pathway components, thereby mitigating lung and intestinal pathological damage.
4.A systematic review on the integrated application of evidence-based narrative education and undergraduate nursing teaching
Nannan BAI ; Meng LI ; Qian LIANG ; Chou YAO ; Yan WANG ; Ju HAN ; Chenyang HOU ; Nana XING
Chinese Medical Ethics 2026;39(2):229-237
ObjectiveTo systematically evaluate the application of narrative education in undergraduate nursing teaching, to understand the current application status of narrative education, and to provide a theoretical basis for the subsequent establishment of a sound narrative education system. MethodsA systematic search was conducted for studies published in Chinese and English databases on applying narrative education to undergraduate nursing teaching, with the search period ranging from database inception to February 23, 2025. Literature was screened, and relevant information was extracted. A rigorous quality evaluation was conducted on the included studies, and a descriptive analysis was performed on their content. ResultsA total of 20 papers were included, involving 3,180 research subjects, all of whom were undergraduate nursing students. The results of descriptive analysis showed that the teaching model of narrative education primarily encompassed reading narrative works, watching films and videos, performing narrative scenarios, and writing reflective journals. The course setting and content covered pre-teaching preparation and in-teaching implementation. The evaluation of teaching effectiveness included the evaluation of teachers’ teaching methods (student evaluation/self-evaluation) and the evaluation of students’ learning effectiveness (course grade evaluation/humanistic care scale/empathy scale assessment, and others). ConclusionNarrative education combines abstract concepts with concrete clinical situations, which not only enriches students’ learning experiences but also enhances their humanistic literacy. Meanwhile, it provides teachers with opportunities to develop their narrative teaching skills, which requires them to possess profound professional knowledge and employ narrative techniques to guide students in reflection and critical thinking, thereby improving teaching quality and learning outcomes. Future efforts should consistently deepen the connotation research of narrative education and build a systematic nursing education system.
5.Exploring Mechanism of Modified Banxia Xiexintang in Ameliorating Metabolic Disorders and Reproductive Function in PCOS-IR Rats Based on Metabolomics and Transcriptomics
Donghan BAI ; Ruying TANG ; Longfei LIN ; Yuling LIU ; Dongxue ZHENG ; Qiling ZHANG ; Xinmin LIU ; Hui LI
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(7):140-149
ObjectiveTo evaluate the therapeutic effects of modified Banxia Xiexintang(MBXT) on polycystic ovary syndrome with insulin resistance(PCOS-IR) rats and reveal its potential mechanisms based on the integrated analysis of transcriptomics and metabolomics. MethodsFemale SD rats were selected, and a PCOS-IR model was established by intragastric administration of letrozole combined with a high-fat diet for 21 days. The modeled rats were randomly divided into the model group, MBXT low-, medium-, and high-dose groups(6.62, 13.23, 26.46 g·kg-1), and metformin group(0.158 g·kg-1), with a normal group set up separately. After 14 days of administration, the estrous cycle was observed, ovarian morphology was examined by hematoxylin-eosin(HE) staining, and the levels of testosterone(T), estradiol(E2), follicle-stimulating hormone(FSH), and luteinizing hormone(LH) in serum were detected by enzyme-linked immunosorbent assay(ELISA). Serum metabolites and ovarian tissue gene expression were detected using ultra-performance liquid chromatography-quadrupole-electrostatic orbitrap mass spectrometry(UPLC-Q-Orbitrap-MS) and RNA-Seq technology, respectively, followed by multi-omics integrated analysis. ResultsPharmacodynamic findings revealed that all MBXT dose groups could reversed abnormal estrous cycles in PCOS-IR rats, improve polycystic ovarian lesions, and normalize dysregulated serum hormone levels(T, LH, E2, FS, P<0.05, P<0.01). Metabolomic analysis revealed that compared with the model group, MBXT reversed 278 differential metabolites such as estrone and S-formylglutathione, mainly involving pathways such as steroid hormone biosynthesis, glutathione metabolism, and lipid peroxidation regulation. Transcriptomic analysis identified 434 differentially expressed genes, and enrichment analysis revealed that MBXT significantly regulated lipid peroxidation defense systems, including glutathione metabolism, peroxisome function, and fatty acid metabolism, thereby intervening in ferroptosis processes. It also engaged in inflammation-related pathways such as the chemokine signaling pathway. Integrated analysis revealed that both metabolomics and transcriptomics co-enriched metabolic pathways associated with ferroptosis and fatty acid metabolism. And key Hub genes[such as Ras-related C3 botulinum toxin substrate 2 gene(Rac2) and Fas ligand gene(Faslg)] showed significant correlations with differential metabolites. ConclusionMBXT can effectively ameliorate reproductive dysfunction and metabolic disorders in PCOS-IR rats. Its mechanism may be related to remodeling the immune-metabolism network, particularly by regulating MHC-mediated immune responses, inhibiting local ovarian ferroptosis, and enhancing steroid hormone synthesis pathways.
6.Investigation on Mechanism of Modified Banxia Xiexintang in Improving Ovarian Dysfunction of PCOS-IR Rats by Inhibiting Ferroptosis via AMPK/FASN/GPX4 Signaling Pathway
Donghan BAI ; Ruying TANG ; Longfei LIN ; Yuling LIU ; Dongxue ZHENG ; Qiling ZHANG ; Xinmin LIU ; Hui LI
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(7):150-160
ObjectiveTo investigate the mechanism of modified Banxia Xiexintang(MBXT) in improving ovarian dysfunction in polycystic ovary syndrome with insulin resistance(PCOS-IR) rats by inhibiting ferroptosis through the adenosine monophosphate(AMP)-activated protein kinase(AMPK)/fatty acid synthase(FASN)/glutathione peroxidase 4(GPX4) signaling pathway. MethodsSeventy-six female SD rats were randomly divided into a normal group(n=13) and a modeling group(n=63). The modeling group established a PCOS-IR model by intragastric administration of letrozole combined with a high-fat diet for 21 days. After successful modeling, these rats were randomly divided into the model group, MBXT low-, medium-, and high-dose groups(6.62, 13.23, 26.46 g·kg-1), metformin group(0.158 g·kg-1), and high-dose of MBXT combined with ferroptosis inducer Erastin group(15 mg·kg-1), with 10 rats in each group. After 14 days of intervention, ovarian pathological morphology was observed by hematoxylin-eosin(HE) staining, the mitochondrial ultrastructure of granulosa cells was observed by transmission electron microscopy(TEM), ovarian reactive oxygen species(ROS) levels were detected by dihydroethidium(DHE) probe, biochemical methods were used to detect Fe2+, malondialdehyde(MDA), glutathione(GSH) and other indicators in ovarian tissues, serum sex hormone and insulin levels were measured by enzyme-linked immunosorbent assay(ELISA), and the protein expressions of AMPK, FASN, acyl-CoA synthetase long-chain family member 4(ACSL4), GPX4, and solute carrier family 7 member 11(SLC7A11) in ovarian tissues were detected by Western blot. ResultsCompared with the normal group, the model group showed polycystic changes in the ovaries, with atrophy of mitochondria in granulosa cells and increased membrane density. Serum levels of testosterone(T), luteinizing hormone(LH), and insulin were significantly increased(P<0.01). The levels of ROS, MDA, 4-hydroxynonenal(4-HNE), and Fe2+ in ovarian tissues were significantly elevated(P<0.01), while adenosine triphosphate(ATP), GSH, and reduced nicotinamide adenine dinucleotide phosphate (NADPH) levels were significantly decreased(P<0.01). The phosphorylation levels of AMPK and acetyl-CoA carboxylase (ACC), as well as the protein expressions of SLC7A11, GPX4, and ferroptosis suppressor protein 1(FSP1) were significantly downregulated(P<0.01), whereas the expressions of FASN, ACSL4, and nuclear receptor coactivator 4(NCOA4) were significantly upregulated(P<0.01). Compared with the model group, MBXT intervention at various doses improved the above pathological changes and biochemical indicators in a dose-dependent manner, with the high-dose group showing the most significant effect(P<0.01). Compared with the MBXT high-dose group, the high-dose of MBXT combined with ferroptosis inducer Erastin group restored ovarian ferroptosis characteristics in rats, with increased ROS and lipid peroxidation products, and altered expressions of key proteins(P<0.05, P<0.01). ConclusionMBXT can effectively improve ovarian function and metabolic disorders in PCOS-IR rats. Its mechanism may be related to activating the AMPK/ACC signaling pathway, downregulating FASN and ACSL4 to reduce lipid peroxidation substrates, and restoring glucose-6-phosphate dehydrogenase/phosphoglycerate dehydrogenase(G6PD/PHGDH) metabolic flux to enhance the GPX4/FSP1 antioxidant defense system, thereby inhibiting ferroptosis in ovarian granulosa cells.
7.Molecular Characteristics of Prognosis and Chemotherapy Response in Breast Cancer: Biomarker Identification Based on Gene Mutations and Pathway
Liyan LI ; Hongwei LYU ; Qian CHEN ; Yating BAI ; Jing YU ; Ruigang CAI
Journal of Breast Cancer 2025;28(2):61-71
Purpose:
This study aimed to investigate the molecular characteristics associated with better prognosis in breast cancer.
Methods:
We performed targeted sequencing of 962 genes in 56 samples, categorizing them into long-term and short-term survival groups as well as chemotherapy-sensitive and chemotherapy-resistant groups for further analyses.
Results:
The results indicated that the tumor mutational burden values were significantly higher in the short-term survival and chemotherapy-resistant groups (p = 0.008 and p = 0.003, respectively). Somatic mutation analysis revealed that the mutation frequencies of BCL9L and WHSC1 were significantly lower in the long-term survival group than those in the short-term survival group (p = 0.029 and p = 0.024, respectively). CREB-regulated transcription coactivator 1 (CRTC1) mutations occurred significantly more frequently in the chemotherapy-resistant group (p = 0.027) and were associated with shorter progression-free survival (p = 0.036).Signature weighting analysis showed a significant increase in Signature.3, which is associated with homologous recombination repair deficiency in the chemotherapy-sensitive group (p = 0.045). Conversely, signatures related to effective DNA repair mechanisms, Signature.1 and Signature.15, were significantly reduced (p = 0.002 and p < 0.001, respectively). Kyoto Encyclopedia of Genes and Genomes pathway analysis indicated that gene mutations were significantly enriched in the JAK-STAT signaling pathway.
Conclusion
This study, through intergroup comparative analysis, found that immunotherapy (using programmed death 1/programmed death-ligand 1 inhibitors) may improve the prognosis of patients with short survival and chemotherapy resistance. Additionally, the study revealed that mutations in BCL9L and WHSC1 could serve as biomarkers for breast cancer prognosis, while CRTC1 mutations and Signature.3 could predict chemotherapy response. The study also found that the JAK-STAT pathway might be a potential therapeutic target for chemotherapy resistance. Therefore, this study identifies molecular characteristics that influence the prognosis of breast cancer patients, providing important theoretical insights for the development of personalized treatment strategies.
8.Clinical diagnostic value of 18 MHz color Doppler ultrasonography in epiretinal membrane
Jun ZHAO ; Ya'nan LI ; Hongqiang JIA ; Min LIU ; Junping BAI
International Eye Science 2025;25(1):144-147
AIM: To explore the diagnostic value of 18 MHz color Doppler ultrasonography for epiretinal membrane.METHODS: A total of 44 cases(80 eyes)of patients with proposed diagnosis of cataract and vitreous opacity by fundus examination in our hospital between January 2020 and January 2022 were collected, and the affected eyes were examined by optical coherence tomography(OCT)and 18 MHz color Doppler ultrasonography, and the differences in the diagnostic sensitivity, specificity, and accuracy were compared between 18 MHz color Doppler ultrasonography and OCT for the diagnosis of epiretinal membrane.RESULTS: In the 80 eyes detected by 18 MHz color Doppler ultrasonography, 62 had epiretinal membrane and 18 had non epiretinal membrane. Totally 54 eyes were confirmed to have epiretinal membrane by OCT, 13 eyes were not diagnosed with epiretinal membrane, 5 eyes were missed diagnosis, and 8 eyes were misdiagnosed. The diagnostic consistency between 18 MHz color Doppler ultrasonography and OCT was high(Kappa=0.892, P<0.05); the 18 MHz color Doppler ultrasonography detection sensitivity of epiretinal membrane was 92%, specificity was 62%, missed diagnosis rate was 8%, misdiagnosis rate was 38%, and accuracy was 84%; compared with OCT detection, 18 MHz color Doppler ultrasonography detected a lower specificity, correct rate, positive prediction accuracy, negative prediction accuracy, and higher misdiagnosis rate(all P<0.05), and the difference in diagnostic sensitivity compared with leakage rate was not statistically significant(all P>0.05).CONCLUSION: 18 MHz color Doppler ultrasonography has some value in identifying epiretinal membrane lesions and is consistent with OCT testing.
9.Effect of Rhei Radix et Rhizoma Before and After Steaming with Wine on Intestinal Flora and Immune Environment in Constipation Model Mice
Yaya BAI ; Rui TIAN ; Yajun SHI ; Chongbo ZHAO ; Jing SUN ; Li ZHANG ; Yonggang YAN ; Yuping TANG ; Qiao ZHANG
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(2):192-199
ObjectiveTo study on the different therapeutic effects and potential mechanisms of Rhei Radix et Rhizoma(RH) before and after steaming with wine on constipation model mice. MethodsFifty-four male ICR mice were randomly divided into control group, model group, lactulose group(1.5 mg·kg-1), high, medium and low dose groups of RH and RH steaming with wine(PRH)(8, 4, 1 g·kg-1). Except for the control group, the constipation model was replicated by gavage of loperamide hydrochloride(6 mg·kg-1) in the other groups. After 2 weeks of modeling, each administration group was gavaged with the corresponding dose of drug solution, and the control and model groups were given an equal volume of normal saline, 1 time/d for 2 consecutive weeks. After administration, the feces were collected for 16S rRNA sequencing, the levels of gastrin(GAS), motilin(MTL), interleukin-6(IL-6), γ-interferon(IFN-γ) in the colonic tissue were detected by enzyme-linked immunosorbent assay(ELISA), the histopathological changes of colon were observed by hematoxylin-eosin(HE) staining, flow cytometry was used to detect the proportion changes of CD4+, CD8+ and regulatory T cell(Treg) in peripheral blood. ResultsCompared with the control group, the model group showed significantly decrease in fecal number in 24 h, fecal quality and fecal water rate(P<0.01), the colon was seen to have necrotic shedding of mucosal epithelium, localized intestinal glands in the lamina propria were degenerated, necrotic and atrophied, a few lymphocytes were seen to infiltrate in the necrotic area in a scattered manner, the contents of GAS and MTL, the proportions of CD4+, CD8+ and Treg were significantly reduced(P<0.01), the contents of IL-6 and IFN-γ were significantly elevated(P<0.05, P<0.01). Compared with the model group, the fecal number in 24 h, fecal quality and fecal water rate of high-dose groups of RH and PRH were significantly increased(P<0.05, P<0.01), the pathological damage of the colon was alleviated to varying degrees, the contents of GAS, MTL, IL-6 and IFN-γ were significantly regressed(P<0.05, P<0.01), and the proportions of CD4+ and CD8+ were significantly increased(P<0.01), although the proportion of Treg showed an upward trend, there was no significant difference. In addition, the results of intestinal flora showed that the number of amplicon sequence variant(ASV) and Alpha diversity were decreased in the model group compared with the control group, and there was a significant difference in Beta diversity, with a decrease in the relative abundance of Lactobacillus and an increase in the relative abundances of Bacillus and Helicobacter. Compared with the model group, the ASV number and Alpha diversity were increased in the high-dose groups of RH and PRH, and there was a trend of regression of Beta diversity to the control group, the relative abundance of Lactobacillus increased, and the relative abundances of Bacillus and Helicobacter decreased. ConclusionRH and PRH can improve dysbacteriosis, promote immune system activation, inhibit the release of inflammatory factors for enhancing the gastrointestinal function, which may be one of the potential mechanisms of their therapeutic effect on constipation.
10.Qingre Sanzhuo Decoction Treats Gouty Arthritis Combined with Hyperuricaemia in Rats via NLRP3/ASC/Caspase-1 Pathway
Haolin LI ; Qian BAI ; Weigang CHENG ; Weiqing LI ; Juanjuan YANG ; Peixin HE ; Huijun YANG ; Haidong WANG
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(3):49-57
ObjectiveTo investigate the effect and mechanism of Qingre Sanzhuo decoction in treating gouty arthritis (GA) combined with hyperuricaemia (HUA). MethodsSixty male SD rats were randomized into normal, model, colchicine (0.5 mg·kg-1), and low-, medium-, and high-dose (17, 34, 68 g·kg-1, respectively) Qingre Sanzhuo decoction groups (n=10). The rats in other groups except the normal group were treated with the modified method for the modeling of GA combined with HUA. The drug intervention groups were administrated with corresponding drugs by gavage in the afternoon every day and the normal group and the model group were administrated with an equal volume of sterile normal saline by gavage. The level of uric acid (SUA) in the serum was measured 2 h after the last administration. The degree of ankle joint swelling was calculated 0.5, 12, 24, 48 h after modeling, and joint inflammation was scored. The pathological changes of ankle joints were observed by hematoxylin-eosin staining, and the serum levels of tumor necrosis factor-α (TNF-α), interleukin-1β (IL-1β), C reactive protein (CRP), and interleukin-18 (IL-18) were measured by enzyme-linked immunosorbent assay. Real-time PCR was performed to determine the mRNA levels of NOD-like receptor protein 3 (NLRP3), apoptosis-associated speck-like protein containing CARD (ASC), cysteinyl aspartate-specific protease-1 (Caspase-1), gasdermin D (GSDMD), and nuclear factor-kappa B (NF-κB) in the synovial tissue of ankle joints. Western blot was employed to determine the protein levels of NLRP3, ASC, and Caspase-1 in ankle joints. The immunohistochemical method was used to detect the expression of GSDMD and NF-κB in the synovial tissue of ankle joints. ResultsCompared with the normal group, the model group showed increased SUA in the serum (P<0.05), ankle joint swelling and joint inflammation (P<0.05), increased number of blood vessels in the synovium, inflammatory cell foci in the synovial bursa, elevated serum levels of TNF-α, IL-1β, CRP, and IL-18 (P<0.05), and up-regulated mRNA and protein levels of NLRP3, ASC, Caspase-1, GSDMD, and NF-κB in the synovial tissue of ankle joints (P<0.05). Compared with the model group, the medium- and high-dose Qingre Sanzhuo decoction groups showed reduced SUA in the serum (P<0.05), alleviated ankle joint swelling and joint inflammation (P<0.05), lowered serum levels of TNF-α, IL-1β, CRP, and IL-18 (P<0.05), and down-regulated mRNA and protein levels of NLRP3, ASC, Caspase-1, GSDMD, and NF-κB in the synovial tissue of ankle joints (P<0.05). However, in terms of ameliorating the pathological changes of ankle joints, only the high-dose Qingre Sanzhuo decoction group showed normal morphology of the synovial membrane of ankle joints and no obvious lesion in the articular cartilage. ConclusionQingre Sanzhuo decoction may play a role in preventing and controlling GA combined with HUA by down-regulating the activity of NLRP3/ASC/Caspase-1 pathway and inhibiting the expression of inflammatory cytokines, such as TNF-α, IL-1β, CRP, and IL-18.


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