1.Qishao Capsules Improve Diabetic Renal Injury in db/db Mice by Inhibiting Podocyte Apoptosis via Regulating Caspase-8 and Caspase-3
Jingwei LIU ; Zhenhua WU ; Bing YANG ; Fengwen YANG ; Miao TAN ; Tingting LI ; Jinchuan TAN
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(2):126-135
ObjectiveTo observe the effect of Qishao capsules on renal injury in db/db mice with diabetic kidney disease (DKD),and explore its mechanism of protecting the kidney by inhibiting podocyte apoptosis. Methodsdb/m mice (7 mice) were used as the normal group,and db/db mice (35 mice) were randomly divided into a model group,a dapagliflozin group (0.001 g·kg-1·d-1),and low-,medium-,and high-dose groups of Qishao capsules (0.341 3,0.682 5,and 1.365 g·kg-1·d-1,respectively). Drug intervention lasted for 8 consecutive weeks. After sampling,the serum renal function indicators [creatinine(SCr),and urea nitrogen(BUN)],fasting blood glucose (FBG),24 h urinary protein quantification (24 h-UTP), and other indicators of the mice were measured. The pathological tissue morphology of the kidney was observed by periodic acid-silver methenamine (PASM) and Masson's trichrome (Masson) staining. Immunohistochemical detection of cysteine-dependent aspartate-specific protease (Caspase)-3 and B-cell lymphoma 2 (Bcl-2) was performed. Western blot was used to detect the protein expression of Caspase-8,Caspase-7,Caspase-3, and other molecules. Terminal deoxynucleotidyl transferase dUTP nick End labeling (TUNEL) staining was used to observe apoptosis in renal tissue. Immunofluorescence staining of Wilms tumor suppressor gene-1
2.Sanren Runchang Formula Regulates Brain-gut Axis to Treat IBS-C: A Randomized Controlled Trial
Teng LI ; Xinrong FAN ; He YAN ; Zhuozhi GONG ; Mengxi YAO ; Na YANG ; Yuhan WANG ; Huikai HU ; Wei WEI ; Tao LIU
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(2):154-161
ObjectiveTo observe the clinical efficacy of Sanren Runchang formula in treating constipation-predominant irritable bowel syndrome (IBS-C) by regulating the brain-gut axis and the effects of the formula on serum levels of 5-hydroxytryptamine (5-HT), vasoactive intestinal peptide (VIP), and substance P (SP). MethodsA randomized controlled design was adopted, and 72 IBS-C patients meeting Rome Ⅳ criteria were randomized into observation and control groups (36 cases).The observation group received Sanren Runchang formula granules twice daily, and the control group received lactulose oral solution daily for 4 weeks. IBS Symptom Severity Scale (IBS-SSS), IBS Quality of Life Scale (IBS-QOL), and Bristol Stool Form Scale (BSFS) were used to assess clinical symptoms, and bowel movement frequency was recorded. The Self-Rating Anxiety Scale (SAS) and Self-Rating Depression Scale (SDS) were employed to evaluate psychological status. ELISA was employed to measure the serum levels of 5-HT, VIP, and SP. ResultsThe total response rate in the observation group was 91.67% (33/36), which was higher than that (77.78%, 28/36) in the control group (χ2=4.50, P<0.05). After treatment, both groups showed increased defecation frequency and BSFS scores, decreased IBS-SSS total score, abdominal pain and bloating scores, IBS-QOL health anxiety, anxiety, food avoidance, and behavioral disorders scores, SAS and SDS scores, serum 5-HT and VIP levels, and increased SP levels (P<0.05, P<0.01). Moreover, the observation group showed more significant changes in the indicators above than the control group (P<0.05, P<0.01). The SP level showed no significant difference between the two groups. During the 4-week follow-up, the recurrence rate was 5.88% in the observation group and 31.25% in the control group. No adverse events occurred in observation group, and 2 cases of mild diarrhea occurred in the control group. ConclusionSanren Runchang formula demonstrated definitive efficacy in alleviating gastrointestinal symptoms and improving the psychological status and quality of life in IBS-C patients, with a low recurrence rate. The formula can regulate serum levels of neurotransmitters such as 5-HT and VIP, suggesting its potential regulatory effect on the brain-gut axis through modulating neurotransmitters and neuropeptides. However, its complete mechanism of action requires further investigation through detection of additional brain-gut axis-related biomarkers.
3.Joint Relation Extraction of Famous Medical Cases with CasRel Model Combining Entity Mapping and Data Augmentation
Yuxin LI ; Xinghua XIANG ; Hang YANG ; Dasheng LIU ; Jiaheng WANG ; Zhiwei ZHAO ; Jiaxu HAN ; Mengjie WU ; Qianzi CHE ; Wei YANG
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(2):218-225
ObjectiveTo address the challenges of unstructured classical Chinese expressions, nested entity relationships, and limited annotated data in famous traditional Chinese medicine(TCM) case records, this study proposes a joint relation extraction framework that integrates data augmentation and entity mapping, aiming to support the construction of TCM diagnostic knowledge graphs and clinical pattern mining. MethodsWe developed an annotation structure for entities and their relationships in TCM case texts and applied a data augmentation strategy by incorporating multiple ancient texts to expand the relation extraction dataset. A cascade binary tagging framework for relation triple extraction(CasRel) model for TCM semantics was designed, integrating a pre-trained bidirectional encoder representations from transformers(BERT) layer for classical TCM texts to enhance semantic representation, and using a head entity-relation-tail entity mapping mechanism to address entity nesting and relation overlapping issues. ResultsExperimental results showed that the CasRel model, combining data augmentation and entity mapping, outperformed the pipeline-based Bert-Radical-Lexicon(BRL)-bidirectional long short-term memory(BiLSTM)-Attention model. The overall precision, recall, and F1-score across 12 relation types reached 65.73%, 64.03%, and 64.87%, which represent improvements of 14.26%, 7.98%, and 11.21% compared to the BRL-BiLSTM-Attention model, respectively. Notably, the F1-score for tongue syndrome relations increased by 22.68%(69.32%), and the prescription-syndrome relations performed the best with the F1-score of 70.10%. ConclusionThe proposed framework significantly improves the semantic representation and complex dependencies in TCM texts, offering a reusable technical framework for structured mining of TCM case records. The constructed knowledge graph can support clinical syndrome differentiation, prescription optimization, and drug compatibility, providing a methodological reference for TCM artificial intelligence research.
4.Discussion on Theory of "Gaozhuo" and Syndrome Differentiation and Treatment for Microcirculatory Disorders in Diabetic Retinopathy
Kai WU ; Yunfeng YU ; Xiangning HUANG ; Qianhong LIU ; Fangfang LI ; Rong YU ; Xiaolei YAO
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(2):245-252
Retinal microcirculatory disorder is a key factor in the occurrence and development of diabetic retinopathy (DR), and also an important link in the prevention and treatment of DR. The theory of "Gaozhuo" holds that the microcirculatory disorder in DR is based on the deficiency of spleen Qi and is characterized by the obstruction caused by "Gaozhuo" and blood stasis. The deficiency of spleen Qi is an essential precondition for the endogenous formation and accumulation of Gaozhuo, while Gaozhuo invasion is the direct cause of microcirculatory disorders in DR. The deficiency of spleen Qi and the endogenous formation of Gaozhuo mean the process in which glucose metabolism dysfunction induces an excessive production of inflammatory factors and lipid metabolites. The obstruction caused by "Gaozhuo" and blood stasis is the direct pathogenesis of microcirculatory disorders in DR, encompassing two stages: Gaozhuo obstruction and turbidity and stasis stagnation. Gaozhuo obstruction and turbidity and stasis stagnation represent the process in which inflammatory factors and lipid metabolites damage the retinal microcirculation and induce thrombosis, thus mediating microcirculatory disorders. Turbidity and stasis stagnation and blood extravasation outside the vessels reveal the progression to microvascular rupture and hemorrhage resulting from the microcirculatory disorders. According to the pathogenesis evolution of the theory of "Gaozhuo", microcirculatory disorders in DR can be divided into deficiency of spleen Qi with Gaozhuo obstruction, deficiency of spleen Qi with turbidity and stasis stagnation, and turbidity and stasis stagnation with blood extravasation outside the vessels. Clinically, treatment principles should focus on strengthening the spleen and benefiting Qi, resolving turbidity, and dispersing stasis. Different syndrome patterns should be addressed with tailored therapies, such as enhancing the spleen and benefiting Qi while regulating Qi and reducing turbidity, strengthening the spleen and benefiting Qi while resolving turbidity and dispelling stasis, and strengthening the spleen and resolving turbidity while removing stasis and stopping bleeding. Representative prescriptions include modified Wendantang, modified Buyang Huanwutang, modified Danggui Buxuetang, Zhuixue Mingmu decoction, Tangmuqing, Shengqing Jiangzhuo Tongluo Mingmu prescription, Danhong Huayu decoction, and Yiqi Yangyin Huoxue Lishui formula.
5.Effect of Traditional Chinese Medicine Monomers and Compounds on Regulating JAK/STAT Signaling Pathway in Rheumatoid Arthritis Treatment: A Review
Xiaonan YAN ; Jigao LI ; Ruixiang YANG ; Ruilin LIU ; Quan ZHOU ; Zhen LI ; Yan LIU
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(2):289-298
Rheumatoid arthritis (RA) is a common chronic systemic autoimmune disease with synovitis as the main manifestation, which often causes joint swelling and pain or even deformity. It is considered to be an incurable lifelong disease. Although the current Western medicine treatment can alleviate the progression of the disease, it has the clinical limitations of liver injury, cardiovascular complications, and other adverse reactions, along with easy recurrence. Traditional Chinese medicine (TCM) has a long history and has the advantages of individualized treatment and fewer adverse reactions. It can effectively relieve the symptoms of joint swelling and pain in RA patients and slow down the progression of bone destruction, which has attracted wide concern in the medical community. Janus kinase (JAK)/signal transducer and activator of transcription (STAT) signaling pathway is an important intracellular pathway involved in cell proliferation, differentiation, apoptosis, immune regulation, and other biological behaviors, and plays an important role in the pathophysiological process of RA. In recent years, many studies have confirmed that TCM monomers and compounds can inhibit inflammation and angiogenesis by regulating the JAK/STAT signaling pathway, induce apoptosis and inhibit proliferation of fibroblast-like synoviocytes (FLS), regulate immune response, and thus exert an effect in the treatment of RA. However, there is still a lack of comprehensive and systematic induction and overview. Therefore, by searching the relevant literature in China National Knowledge Infrastructure (CNKI) and PubMed databases from 2009 to 2024, this study described the mechanism of the JAK/STAT signaling pathway in the occurrence and development of RA and summarized the research progress of TCM monomers and compounds in regulating the JAK/STAT signaling pathway in RA intervention. The study aims to provide new ideas and strategies for the clinical treatment of RA with TCM and the research and development of new drugs.
6.Mechanism of Action of Guishenwan in Treatment of Ovarian Insufficiency Diseases: A Review
Yao CHEN ; Sainan TIAN ; Bin'an WANG ; Shengyu WANG ; Wen'e LIU ; Lei LEI ; Li TANG
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(2):317-324
Guishenwan (GSW), originating from Jingyue Quanshu (Zhang Jingyue's Complete Works), is a classic traditional Chinese medicine (TCM) formula with a history of over 400 years. Designed for kidney essence deficiency syndrome, it is clinically applied to treat diseases associated with essence-blood deficiency, such as ovarian insufficiency diseases in women, oligospermia-induced infertility in men, and lumbar disc herniation. Numerous studies have confirmed its significant efficacy and advantages in managing ovarian insufficiency diseases, including diminished ovarian reserve (DOR), premature ovarian insufficiency (POI), and premature ovarian failure (POF). According to recent literature, the therapeutic mechanisms of GSW in treating ovarian insufficiency diseases involve regulating the hypothalamic-pituitary-ovarian axis (HPOA) function, ameliorating reproductive endocrine disorders, improving ovarian function, modulating relevant signaling pathways, and exerting immunoregulatory and anti-inflammatory effects. A review of GSW in clinical treatment revealed that clinical applications of GSW, particularly in combination with Western medicine, not only alleviate symptoms but also compensate for the limitations of hormone replacement therapy, thereby reducing recurrence, minimizing adverse reactions, and enhancing safety. This review aims to provide a scientific basis for the rational clinical use of GSW in ovarian insufficiency diseases, offer innovative TCM strategies for developing novel ovarian-protective drugs, promote the integration of TCM and Western medicine in reproductive medicine, and ultimately contribute a Chinese approach to global management of ovarian insufficiency diseases.
7.Serum nitric oxide synthase 4 and matrix metalloproteinase-2 expression in patients with diabetic neovascular glaucoma and their clinical significance
Xiaomin LIU ; Jingfei BAN ; Jing LYU ; Wenwen LI ; Jingke LI ; Shunling YANG
International Eye Science 2026;26(1):103-108
AIM: To investigate and analyze serum nitric oxide synthase 4(NOX4)and matrix metalloproteinase(MMP)-2 expressions in patients with diabetes mellitus(DM)complicated with neovascular glaucoma(NVG)and their clinical significance.METHODS: A prospective study was conducted on 161 patients with DM complicated with NVG admitted to Handan City Eye Hospital(The Third Hospital of Handan)from June 2020 to June 2023. Based on whether complications occurred 1 a after trabeculectomy in the study group patients, they were divided into a group with good prognosis(n=90)and a group with poor prognosis(n=71). During the same period, 161 patients with chronic angle-closure glaucoma without iris neovascularization were selected as the control group. ELISA method was applied to detect the expression levels of serum NOX4 and MMP-2. ROC curve was plotted to evaluate the diagnostic value and postoperative complication prediction value of NOX4 and MMP-2 in patients with DM complicated with NVG. Pearson method was applied to analyze the correlation of NOX4 and MMP-2 with vascular endothelial growth factor(VEGF)and interleukin-6(IL-6). Multivariate Logistic regression was applied to analyze the influencing factors of postoperative complications in the study group.RESULTS:The general information of the study group and control group of patients is comparable. Compared with the control group, the expression levels of serum NOX4, MMP-2, VEGF, and IL-6 in the study group were significantly increased(P<0.001). According to Pearson analysis, serum NOX4 and MMP-2 levels significantly positively correlated with VEGF and IL-6 levels, respectively(P<0.001). According to ROC curve, the AUC of NOX4 combined with MMP-2 in the diagnosis of DM complicated with NVG was better than that of individual diagnosis of NOX4(Z=3.341, P<0.05)and MMP-2(Z=2.788, P<0.05). The duration of DM, the proportion of people with intraocular pressure >21 mmHg, and the expression levels of NOX4, MMP-2, VEGF, and IL-6 in the poor prognosis group were all higher than those in the good prognosis group(P<0.001). The duration of DM, intraocular pressure >21 mmHg, the levels of NOX4, MMP-2, VEGF, and IL-6 were all risk factors for poor prognosis in DM patients with NVG(P<0.001). According to ROC curve, the combined prediction of NOX4 and MMP-2 for postoperative complications in patients with DM complicated by NVG was superior to the AUC predicted by NOX4(Z=3.727, P<0.05)and MMP-2(Z=2.219, P<0.05), respectively.CONCLUSION:NOX4 and MMP-2 are upregulated in the serum of patients with DM complicated by NVG. Combined detection of these two markers holds significant clinical value for the early diagnosis and prognosis of patients with DM complicated by NVG.
8.Mechanisms of Sini San in Regulation of Gut Microbiota Against Depression and Liver Injury in CUMS Rats
Junling LI ; Yan ZHANG ; Lei WANG ; Fang QI ; Zhenzhen CHEN ; Tianxing CHEN ; Yuhang LIU ; Xueying WANG ; Xianwen TANG ; Yubo LI
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(3):33-40
ObjectiveTo explore the efficacy and mechanisms of Sini San in the treatment of depression and liver injury based on gut microbiota. MethodsThirty-two male Sprague-Dawley (SD) rats were randomly divided into a normal group, model group (M), Sini San group (MS, 2.5 g·kg-1), and fluoxetine group (MF, 2 mg·kg-1). Except for the normal group, rats in the other three groups were subjected to chronic unpredictable mild stress (CUMS). After 8 weeks, the open-field test and sucrose preference test were conducted. Enzyme-linked immunosorbent assay (ELISA) was used to detect serum corticosterone (CORT), adrenocorticotropic hormone (ACTH), corticotropin-releasing factor (CRF), lipopolysaccharide (LPS), Zonulin, interleukin-6 (IL-6), tumor necrosis factor-α (TNF-α), interleukin-1β (IL-1β), γ-aminobutyric acid (GABA) levels in the hippocampus and prefrontal cortex, and brain-derived neurotrophic factor (BDNF) levels in the hippocampus. Real-time quantitative polymerase chain reaction (Real-time PCR) was used to detect hippocampal BDNF mRNA expression. Serum alanine aminotransferase (ALT) and aspartate aminotransferase (AST) levels were measured using the ultraviolet lactate dehydrogenase method. The ultrastructure of the intestinal epithelium was observed by electron microscopy, and gut microbiota in rat feces were analyzed using 16S rDNA high-throughput sequencing. ResultsCompared with the normal group, the sucrose preference of rats in the model group was significantly reduced (P0.01), whereas it was significantly increased in the Sini San group compared with the model group (P0.05). Compared with the normal group, hippocampal GABA protein levels and BDNF mRNA expression in the model group were significantly decreased (P0.05), and compared with the model group, both were significantly increased in the Sini San group (P0.05, P0.01). Compared with the normal group, serum LPS and Zonulin levels in the model group were significantly increased (P0.05, P0.01), and compared with the model group, Zonulin levels in the Sini San group were significantly decreased (P0.05). No obvious changes were observed in the ultrastructure of the jejunal mucosa among groups. Compared with the normal group, widened and blurred tight junctions, sparse and shortened microvilli, and mitochondrial swelling with cristae disruption in epithelial cells were observed in the ileal and colonic mucosa of the model group, which were markedly improved in the Sini San and fluoxetine groups. The results of 16S rDNA high-throughput sequencing showed that Sini San improved CUMS-induced dysbiosis of Bacteroidetes and Proteobacteria. Correlation analysis indicated that Bacteroidetes and Proteobacteria were significantly correlated with depression-related indicators, liver function, and intestinal mucosal permeability. ConclusionSini San exerts antidepressant and hepatoprotective effects by improving Bacteroidetes and Proteobacteria and inhibiting the increase in intestinal mucosal permeability in CUMS rats.
9.Exploration in Mechanism of Sini San for Inhibiting Ferroptosis and Ameliorating Isoprenaline-induced Myocardial Infarction in Mice Based on Bioinformatics and Experimental Validation
Shupeng LIU ; Zhiguang HAN ; Jiaying LI ; Jiayao XU ; Weihao GAO ; Yanping WU ; Guangguo BAN ; Yongmin LI ; Hongxia YANG
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(3):67-77
ObjectiveTo explore the mechanism by which Sini San (SNS) inhibits ferroptosis, alleviates inflammation and myocardial injury, and improves myocardial infarction (MI). MethodsThe active ingredients of SNS were obtained by searching the Traditional Chinese Medicine System Pharmacology Platform (TCMSP) database, its target sites were predicted using the SwissTargetPrediction Database, and the core components were screened out using the CytoNCA plug-in. The targets of MI and ferroptosis were obtained by using GeneCards, Online Mendelian Inheritance in Man (OMIM) database, DrugBank, Therapeutic Target Database (TTD), FerrDb database and literature review, respectively. The intersection of these targets of SNS-MI-ferroptosis was plotted as a Venn diagram. The protein-protein interaction (PPI) network was constructed using the STRING database, and the visualization graph was prepared using Cytoscape. The core targets were screened out using the CytoNCA plug-in, and the biological functions were clustered by the MCODE plug-in. Gene Ontology (GO) functional enrichment analysis and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analysis were performed using the David database. Molecular docking was performed using AutoDock and visualized with PyMOL2.5.2. The Kunming mice were randomly divided into the control group, the model group, the SNS group, and the trimetazidine (TMZ) group. The mice were subcutaneously injected with isoprenaline (ISO, 5 mg·kg-1·d-1) to establish an MI model. The drug was continuously intervened for 7 days. The ST-segment changes were recorded by electrocardiogram (ECG), and the tissue morphology changes were observed by hematoxylin-eosin (HE) staining. Cardiomyocyte ferroptosis was investigated by transmission electron microscopy. Serum creatine kinase (CK), creatine kinase isoenzyme (CK-MB), lactate dehydrogenase (LDH), reduced glutathione (GSH), and malondialdehyde (MDA) levels were detected by biochemical assay. Enzyme-linked immunosorbent assay (ELISA) was used to detect serum levels of interleukin (IL)-6 and 4-hydroxynonenal (4-HNE). Immunohistochemical staining was employed to detect IL-6 and phosphorylated signal transducer and transcription activator 3 (p-STAT3) in cardiac tissues. Western blot was used to detect STAT3 and p-STAT3 in cardiac tissues. Real-time PCR was used to detect the levels of IL-6, IL-18, solute carrier family 7 member 11 (SLC7A11), arachidonic acid 15-lipoxygenase (ALOX15), and glutathione peroxidase 4 (GPx4) in cardiac tissues. ResultsA total of 121 active ingredients of SNS were obtained, and 58 potential targets of SNS in the treatment of MI by regulating ferroptosis were screened. The three protein modules with a score5 were mainly related to the inflammatory response. The GO function was mainly related to inflammation, and KEGG enrichment analysis showed that SNS mainly regulated ferroptosis- and inflammation- related signaling pathways. Molecular docking indicated that the core component had a higher binding force to the target site. Animal experiments confirmed that SNS reduced the level of p-STAT3 (P0.01), down-regulated the expression of ALOX15 mRNA (P0.01), up-regulated the level of serum GSH, and the expressions of SLC7A11 and GPx4 mRNA, reduced MDA and 4-HNE levels (P0.05, P0.01). Additionally, SNS improved the mitochondrial injury induced by cardiomyocyte ferroptosis, reduced the area of MI, alleviated inflammation and myocardial injury, lowered the levels of serum CK, CK-MB, LDH, IL-6, and the mRNA expression levels of IL-16 and IL-18 (P0.05), and improved ST segment elevation. ConclusionSNS can reduce ISO-induced STAT3 phosphorylation levels, inhibit ferroptosis in cardiomyocytes, alleviate inflammation and myocardial injury, thereby improving MI.
10.Mechanisms of Shenqi Wenfei Prescription in Intervening in Chronic Obstructive Pulmonary Disease in Rats Based on ROS/TXNIP/NLRP3 Signaling Pathway
Di WU ; Mengyao SHI ; Lu ZHANG ; Tong LIU ; Jiabing TONG ; Cheng YANG ; Zegeng LI
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(3):78-87
ObjectiveTo investigate the effects and underlying mechanisms of Shenqi Wenfei prescription (SQWF) on chronic obstructive pulmonary disease (COPD). MethodsA rat model of COPD with lung Qi deficiency was established using lipopolysaccharide (LPS) combined with cigarette smoke. Forty-eight SD rats were randomly divided into a blank group, a model group, low-, medium-, and high-dose SQWF groups (2.835, 5.67, 11.34 g·kg-1), and a Yupingfeng group (1.35 g·kg-1). Drug administration began on day 29 after modeling and continued for 2 weeks. The general condition of the rats was observed, and the lung function in each group was assessed. Hematoxylin-eosin (HE) staining was used to observe pathological changes in lung tissue. The proportion of inflammatory cells in bronchoalveolar lavage fluid (BALF) was measured. Apoptosis in lung tissue was examined by terminal deoxynucleotidyl transferase-mediated dUTP nick end-labeling (TUNEL) staining. The release level of lactate dehydrogenase (LDH) in BALF was detected by a microplate assay. Reactive oxygen species (ROS) levels in lung tissue were detected using fluorescent probes. The levels of malondialdehyde (MDA), total superoxide dismutase (SOD), and reduced glutathione (GSH) in BALF were measured by biochemical methods. Ultrastructural changes in lung cells were observed via transmission electron microscopy. Double immunofluorescence staining was performed to detect the expression of thioredoxin-interacting protein (TXNIP) and nucleotide-binding oligomerization domain-like receptor protein 3 (NLRP3) in lung tissue. Western blot analysis was used to detect the protein expression of TXNIP, NLRP3, apoptosis-associated speck-like protein containing a CARD (ASC), cysteinyl aspartate-specific protease-1 (Caspase-1), Caspase-1 p20, gasdermin D (GSDMD), GSDMD N-terminal active fragment (GSDMD-N), interleukin-1β (IL-1β), and IL-18 in lung tissue. Serum IL-1β and IL-18 levels were measured by ELISA. ResultsCompared with the blank group, the model group showed lassitude, fatigue, tachypnea, and audible phlegm sounds, and lung function significantly declined (P0.01). Pulmonary emphysema and inflammatory cell infiltration were obvious. The level of inflammatory cells in BALF increased significantly (P0.05). The number of TUNEL-positive cells increased (P0.01). Levels of LDH, ROS, and MDA in BALF increased significantly (P0.01), while GSH and SOD activities decreased significantly (P0.01). Lung tissue cells showed irregular morphology, swollen mitochondria, disrupted cell membranes, and abundant vesicles, i.e., pyroptotic bodies. Protein levels of TXNIP, NLRP3, ASC, Caspase-1, Caspase-1 p20, GSDMD, GSDMD-N, IL-1β, and IL-18 in lung tissue were significantly elevated (P0.01), and serum IL-1β and IL-18 levels also increased significantly (P0.01). Compared with the model group, each medication group showed alleviation of qi deficiency symptoms and improved lung function (P0.01). Pulmonary emphysema and inflammatory cell infiltration were reduced. Inflammatory cell levels decreased (P0.05). The number of TUNEL-positive cells decreased significantly (P0.01). Levels of LDH, ROS, and MDA decreased significantly (P0.05), while GSH and SOD activities significantly increased (P0.01). Morphological and structural damage in lung tissue was improved to varying degrees. Protein levels of TXNIP, NLRP3, ASC, Caspase-1, Caspase-1 p20, GSDMD, GSDMD-N, IL-1β, and IL-18 in lung tissue significantly decreased (P0.01), and serum IL-1β and IL-18 levels also decreased significantly (P0.05). ConclusionSQWF can improve lung function and alleviate inflammatory responses in COPD rats. Its mechanism may be related to regulating the ROS/TXNIP/NLRP3 pathway and inhibiting pyroptosis.

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