1.Comparison of Efficacy and Mechanism in Warming Yang and Dispersing Cold of Aconiti Radix Lateralis Praeparata Processed by ZHANG Zhongjing's Method and Pharmacopoeia Method
Mingjie JIAO ; Qian CHEN ; Shuyu YAN ; Yiyan SONG ; Jia ZHANG ; Fei LI
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(2):207-217
ObjectiveTo investigate the therapeutic effects and mechanism of decoctions from four kinds of processed products of Aconiti Radix Lateralis Praeparata(ARLP) in deficiency-cold syndrome. MethodsA total of 36 SD rats were randomly divided into the control group, model group, Shengfupian(SFP) group, Paofuzi(PFZ) group, Heishunpian(HSP) group and Paofupian(PFP) group with 6 rats in each group. Except for the control group, rats in other groups were administered hydrocortisone sodium succinate via intramuscular injection to induce a cold deficiency syndrome model. After 14 consecutive days, each ARLP decoction pieces was administered via continuous gastric lavage at a dose of 12 g·kg-1·d-1 for 7 d, while the control and model groups received an equivalent volume of physiological saline. After the end of administration, body weight, spleen weight and thymus weight were measured for calculating the spleen and thymus indexes. Hematoxylin-eosin(HE) staining was used to observe the pathological morphology of adrenal tissue. The fully automatic biochemistry analyzer was used to measure the total cholesterol(TC), triglyceride(TG), lactic dehydrogenase(LDH) and lactate(LAC) levels in serum. Enzyme-linked immunosorbent assay(ELISA) was employed to measure the contents of 17-hydroxycorticosteroid(17-OHCS), cortisol(CORT), triiodothyronine(T3), thyroxine(T4), thyrotropin(TSH), immunoglobulin(Ig) M, IgG, cyclic adenosine monophosphate(cAMP) and cyclic guanosine monophosphate(cGMP). Western blot was used to measure the protein expression levels of protein kinase A(PKA), cAMP response element-binding protein(CREB), silent information regulator 1(Sirt1) and peroxisome proliferator-activated receptor γ coactivator-1α(PGC-1α). And high performance liquid chromatography(HPLC) was used to determine the content of major alkaloids, followed by Pearson correlation analysis with pharmacodynamic indicators. ResultsAfter modeling, compare with the control group, the model rats exhibited symptoms such as lethargy and loose stools, mild abnormalities were observed in adrenal tissue structure, and both spleen and thymus indices were significantly reduced(P<0.01). Thyroid, adrenal and immune system functions were suppressed, with decreased serum cAMP level and significantly elevated cGMP level(P<0.01). Compared with the model group, the adrenal injury by hydrocortisone sodium succinate were repaired and the spleen index were increased significantly in all four ARLP groups(P<0.05, P<0.01). The thymus index in SFP and PFZ groups were increased significantly(P<0.05). The contents of T3, TSH, 17-OHCS and CORT were increased significantly in SFP and PFZ groups(P<0.05). In addition, the content of IgG in SFP, PFZ and PFP groups were increased significantly(P<0.01), while the content of IgM in PFZ and HSP groups were also increased significantly(P<0.05). Regarding the cyclic nucleotide system, PFZ significantly elevated cAMP level while reducing cGMP level(P<0.05), exhibiting the most pronounced effect among the four decoction pieces. For energy metabolism indicators, PFZ significantly improved abnormal markers including TC, TG, LDH, and LAC(P<0.05). HSP showed marked improvement effects on TG, LDH, and LAC(P<0.05). Both PFZ and SFP significantly elevated the expression levels of PKA, CREB, Sirt1, and PGC-1α proteins(P<0.01). Additionally, the diester alkaloids in ARLP showed a strong positive correlation with TG, IgG, and CORT, a strong negative correlation with LAC, a moderate positive correlation with T4, and moderate negative correlations with cAMP and spleen index. Monomeric alkaloids showed strong positive correlations with TG and IgG, strong negative correlations with LAC, moderate positive correlations with CORT and T4, and moderate negative correlations with cAMP and spleen index. However, the content of water-soluble alkaloids showed strong positive correlations with TC, LDH, 17-OHCS, T3, TSH, and thymus index, moderate positive correlations with cAMP, CORT, T4, and spleen index, and moderate negative correlation with cGMP. ConclusionAmong different processed ARLP decoction pieces, PFZ processed according to ZHANG Zhongjing's method exhibits the most potent warming and cold-dispelling effects. Its pharmacological actions are mediated through regulating the thyroid, adrenal, immune, cyclic nucleotide systems, and material-energy metabolism pathways. Among these, water-soluble alkaloids show strong or moderate correlations with more indicators of deficiency-cold syndrome and exhibit the highest content in PFZ. Therefore, PFZ processed according to ZHANG Zhongjing's method may exert its warming and cold-dispelling effects through water-soluble alkaloids.
2.Current Status and Strategies of Integrated Traditional Chinese and Western Medicine in the Treatment of Helicobacter pylori Infection
Xuezhi ZHANG ; Xia DING ; Zhen LIU ; Hui YE ; Xiaofen JIA ; Hong CHENG ; Zhenyu WU ; Xudong TANG
Journal of Traditional Chinese Medicine 2026;67(1):111-116
This paper systematically reviews the current status of integrated traditional Chinese and western medicine in the treatment of Helicobacter pylori (Hp) infection, as well as recent progress in clinical and basic research both in China and internationally. It summarizes the advantages of traditional Chinese medicine (TCM) in Hp infection management, including improving Hp eradication rates, enhancing antibiotic sensitivity, reducing antimicrobial resistance, decreasing drug-related adverse effects, and ameliorating gastric mucosal lesions. These advantages are particularly evident in patients who are intolerant to bismuth-containing regimens, those with refractory Hp infection, and individuals with precancerous gastric lesions. An integrated, whole-process management approach and individualized, staged comprehensive treatment strategies combining TCM and western medicine are proposed for Hp infection. Future prevention and control of Hp infection should adopt an integrative Chinese-western medical strategy, emphasizing prevention, strengthening primary care, implementing proactive long-term monitoring, optimizing screening strategies, and advancing the development of novel technologies and mechanistic studies of Chinese herbal interventions. These efforts aim to provide a theoretical basis and practical pathways for the establishment and improvement of Hp infection prevention and control systems.
3.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.
4.Level and related factors of latent tuberculosis infection in junior and senior high school freshmen in Lanzhou from 2023 to 2024
FANG Qian, ZHANG Li, QIAO Xiaowei, WANG Yuhong, JIA Juanli, HOU Yan
Chinese Journal of School Health 2026;47(2):287-290
Objective:
To investigate the current status of latent tuberculosis infection (LTBI) among freshmen in junior and senior high schools in Lanzhou, so as to provide scientific basis for improving the tuberculosis prevention and control strategy in schools.
Methods:
The screening results of 74 516 freshmen in senior and boarding junior high schools in Lanzhou during 2023 and 2024 were collected. The Chi square test and multivariate Logistic regression model were applied to analyze LTBI level, strongly positive risk for tuberculin skin test (TST) and related factors of the freshmen.
Results:
During 2023 and 2024, the screening rate of tuberculosis among freshmen in senior and boarding junior high schools in Lanzhou was 93.45%, of which the positive rate for TST was 5.71%, the infection rate for LTBI was 3.80%, and the strongly positive rate for TST was 1.24%. There were statistically significant differences in the screening rate of tuberculosis among freshmen in different years, grades, regions, school types and districts ( χ 2=5.34, 2 463.88, 3 516.13, 132.34, 4 436.56, all P <0.05). Multivariate Logistic regression analysis showed that senior high schools ( OR =1.62, 2.18) and urban areas ( OR =2.08, 3.07 ) were all related factors for LTBI and strong positivity for TST among freshmen; schools located in Xigu District, Honggu District, Yongdeng County, Yuzhong County, and Lanzhou New Area ( OR =3.57, 5.67, 9.12, 3.70, 3.64) were related factors of strong positivity for TST among freshmen (all P <0.05).
Conclusions
The LTBI level among freshmen in senior and boarding junior high schools in Lanzhou is relatively low. Grades and regions are related factors for LTBI and strong positivity for TST.
5.QingNangTCM: a parameter-efficient fine-tuning large language model for traditional Chinese medicine
Xuming TONG ; Liyan LIU ; Yanhong YUAN ; Xiaozheng DING ; Huiru JIA ; Xu YANG ; Sio Kei IM ; Mini Han WANG ; Zhang XIONH ; Yapeng WANG
Digital Chinese Medicine 2026;9(1):1-12
Objective:
To develop QingNangTCM, a specialized large language model (LLM) tailored for expert-level traditional Chinese medicine (TCM) question-answering and clinical reasoning, addressing the scarcity of domain-specific corpora and specialized alignment.
Methods:
We constructed QnTCM_Dataset, a corpus of 100 000 entries, by integrating data from ShenNong_TCM_Dataset and SymMap v2.0, and synthesizing additional samples via retrieval-augmented generation (RAG) and persona-driven generation. The dataset comprehensively covers diagnostic inquiries, prescriptions, and herbal knowledge. Utilizing P-Tuning v2, we fine-tuned the GLM-4-9B-Chat backbone to develop QingNangTCM. A multi-dimensional evaluation framework, assessing accuracy, coverage, consistency, safety, professionalism, and fluency, was established using metrics such as bilingual evaluation understudy (BLEU), recall-oriented understudy for gisting evaluation (ROUGE), metric for evaluation of translation with explicit ordering (METEOR), and LLM-as-a-Judge with expert review. Qualitative analysis was conducted across four simulated clinical scenarios: symptom analysis, disease treatment, herb inquiry, and failure cases. Baseline models included GLM-4-9B-Chat, DeepSeek-V2, HuatuoGPT-II (7B), and GLM-4-9B-Chat (freeze-tuning).
Results:
QingNangTCM achieved the highest scores in BLEU-1/2/3/4 (0.425/0.298/0.137/0.064), ROUGE-1/2 (0.368/0.157), and METEOR (0.218), demonstrating a balanced and superior normalized performance profile of 0.900 across the dimensions of accuracy, coverage, and consistency. Although its ROUGE-L score (0.299) was lower than that of HuatuoGPT-II (7B) (0.351), it significantly outperformed domain-specific models in expert-validated win rates for professionalism (86%) and safety (73%). Qualitative analysis confirmed that the model strictly adheres to the “symptom-syndrome-pathogenesis-treatment” reasoning chain, though occasional misclassifications and hallucinations persisted when dealing with rare medicinal materials and uncommon syndromes.
Conclusion
Combining domain-specific corpus construction with parameter-efficient prompt tuning enhances the reasoning behavior and domain adaptation of LLMs for TCM-related tasks. This work provides a technical framework for the digital organization and intelligent utilization of TCM knowledge, with potential value for supporting diagnostic reasoning and medical education.
6.Analysis of postoperative lipid control status and influencing factors in patients undergoing coronary artery bypass grafting surgery
Xiaoyu XU ; Zehua ZHANG ; Tianyu JIA ; Bangrong SONG ; Ran DONG ; Yang LIN
Chinese Journal of Clinical Thoracic and Cardiovascular Surgery 2026;33(04):605-610
Objective To understand the current status of low-density lipoprotein cholesterol (LDL-C) control in patients after coronary artery bypass grafting (CABG). Methods Clinical data of patients who underwent isolated CABG in Beijing Anzhen Hospital in 2023 were collected. All patients returned to our hospital approximately one year after surgery (10-13 months) for a lipid level recheck. We analyzed their LDL-C attainment status and influencing factors. Patients were categorized into two groups based on whether their LDL-C met the target: a LDL-C attainment group and a LDL-C non-attainment group. Results This study included 1456 patients who underwent CABG, including 320 females and 1136 males, with an average age of (61.41±9.12) years. One year post-surgery, 234 patients achieved the LDL-C target, with an attainment rate of 16.07%. The proportion of patients in the LDL-C attainment group who were ultra-high risk (77.35% vs. 92.06%, P<0.001), female (16.24% vs. 23.08%, P=0.021), and those with comorbid hypertension (55.98% vs. 63.18%, P=0.038) was significantly lower than those in the LDL-C non-attainment group. Additionally, the baseline body mass index (BMI) [(25.37±3.24) kg/m2 vs. (26.03±3.56) kg/m2, P=0.017], total cholesterol levels [(3.30±0.84) mmol/L vs. (4.01±1.03) mmol/L, P<0.001], LDL-C [(1.62±0.63) mmol/L vs. (2.25±0.85) mmol/L, P<0.001], and high-density lipoprotein cholesterol [(0.98±0.26) mmol/L vs. (1.02±0.24) mmol/L, P=0.049] upon admission in the attainment group were all lower than those in the non-attainment group. Moreover, the lipid-lowering drug usage rate in the attainment group (100.00% vs. 96.24%, P=0.003) and the proportion using two types of drugs together (25.21% vs. 10.72%, P<0.001) were both higher than those in the non-attainment group, while the statin monotherapy rate was lower than that in the non-attainment group (74.79% vs. 85.19%, P<0.001). Logistic regression analysis showed that baseline BMI (OR=0.928, P=0.012) and baseline LDL-C levels (OR=0.207, P<0.001), patient cardiovascular risk stratification (OR=0.155, P<0.001) and lipid-lowering drug treatment regimen (OR=3.758, P<0.001) are significant factors affecting the LDL-C control status. Conclusion The LDL-C compliance rate of patients undergoing CABG is at a relatively low level 1 year after surgery. Patients with very high risk of atherosclerotic cardiovascular disease, high baseline LDL-C levels, and overweight or obesity should be strengthened lipid management. For these patients, the intensity of lipid-lowering drug use or combination medication should be increased upon discharge.
7.Tangbikang Granules Improve Diabetic Peripheral Neuropathy by Inhibiting Ferroptosis via AMPK/Nrf2 Signaling Pathway
Zehong YANG ; Tonghua LIU ; Xiaohong MU ; Yaqi ZHANG ; Huizhong BAI ; Lingling QIN ; Xiaolei JIA
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(9):52-60
ObjectiveTo explore the mechanism by which Tangbikang granules improve diabetic peripheral neuropathy based on ferroptosis mediated by the adenosine monophosphate-activated protein kinase/nuclear factor erythroid 2-related factor 2 (AMPK/Nrf2) signaling pathway. MethodsA diabetes model was established using spontaneous male Zucker diabetic fatty (ZDF) rats. After successful modeling, the rats were divided into a normal group, a model group, high-, medium-, and low-dose Tangbikang granules groups, and a metformin hydrochloride group. The high-, medium-, and low-dose Tangbikang granules groups were administered by gavage at doses of 2.5, 1.25, 0.625 g·kg-1, respectively. The metformin hydrochloride group received 0.135 g·kg-1 by gavage, while the remaining groups received an equal volume of deionized water. Administration continued for 12 weeks. Blood glucose levels were measured after administration, and at 4, 8, 12 weeks. Following the 12-week intervention, the thermal pain threshold and the sciatic nerve conduction velocity (SNCV) were measured. The levels of malondialdehyde (MDA), superoxide dismutase (SOD), and adenosine triphosphate (ATP) in the sciatic nerve were measured using enzyme-linked immunosorbent assay (ELISA). Morphological changes in the sciatic nerve were observed using hematoxylin and eosin (HE) staining, and the ultrastructural changes were examined using transmission electron microscopy. The levels of glutathione peroxidase 4 (GPx4) were detected using immunofluorescence (IF) assay. The protein expression levels of p-AMPK, Nrf2, GPx4, and acyl-CoA synthetase long-chain family member 4 (ACSL4) were detected using Western blot. ResultsCompared with the normal group, the model group had significantly higher blood glucose levels after administration and at weeks 4, 8 and 12 (P<0.01). The thermal pain threshold was significantly prolonged (P<0.01), and the SNCV was significantly slowed down (P<0.01). The SOD and ATP levels significantly decreased (P<0.01), while the MDA levels significantly increased (P<0.01). Pathologically, the sciatic nerve fibers in the model group showed a dispersed structure, disordered and sparse arrangement, axonal atrophy, irregular myelin sheath halo, increased and swollen Schwann cell nuclei, obvious endoneurial fibrosis, and collagen hyperplasia. Immunofluorescence assay revealed fragmented red fluorescence and significantly reduced expression of GPx4 (P<0.01). Western blot analysis showed significantly decreased protein expression levels of p-AMPK, Nrf2, and GPx4 (P<0.01), and significantly increased expression of ACSL4 (P<0.01) in the model group. Compared with the model group, fasting blood glucose level decreased significantly in the high-dose Tangbikang granules group at weeks 4 and 12 (P<0.05). The thermal pain threshold was significantly shortened in the high- and medium-dose Tangbikang granules groups (P<0.01). The SNCV was significantly accelerated in the high- and medium-dose Tangbikang granules groups (P<0.01). The SOD levels were significantly elevated in the high-dose Tangbikang granules group (P<0.01). The MDA levels significantly decreased in all Tangbikang granules groups (P<0.01). Both the metformin hydrochloride group and the high-dose Tangbikang granules group exhibited relatively orderly and densely arranged sciatic nerve fibers with more regular myelin sheath halos. The GPx4 expression significantly increased in both the metformin hydrochloride group and all Tangbikang granules groups (P<0.01). The protein expression levels of p-AMPK, Nrf2, and GPx4 were significantly increased (P<0.01), while ACSL4 protein expression significantly decreased (P<0.01). ConclusionTangbikang granules may improve peripheral neuropathy by suppressing ferroptosis through the regulation of the AMPK/Nrf2 signaling pathway.
8.Effect and Mechanism of Liangyi Paste on Hepatic Lipid Deposition in Naturally Aged Mice with High-fat Diet via Cuproptosis/Oxidative Stress Pathway
Meiling ZHANG ; Yuanguang DONG ; Xiaofei SUN ; Jiaxin WANG ; Yu LIU ; Jingxuan ZHU ; Qun WANG ; Nan SONG ; Guoyuan SUI ; Lianqun JIA
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(9):91-99
ObjectiveTaking the cuproptosis/oxidative stress pathway as the entry point, this study investigated the effect and mechanism of Liangyi Paste on hepatic lipid deposition in naturally aged mice fed with a high-fat diet. MethodsAfter adaptive feeding, 80 ten-week-old male C57BL/6 mice were used. Thirty of them were randomly divided into three groups (10 mice per group): The 12-month-old control group (12MCON), the 15-month-old control group (15MCON), and the 15-month-old group with a high-fat diet (15MHFD). The 12MCON and 15MCON groups were continuously fed a standard diet, while the 15MHFD group started receiving a high-fat diet at 12 months of age. Tissue samples were collected at the corresponding time points for each group. The remaining 50 mice were randomly divided into five groups (10 mice per group): the 20-month-old control group (20MCON), the model group, and the low-, medium-, and high-dose Liangyi Paste groups (2.91 , 5.82 , 11.64 g·kg-1·d-1, respectively). The 20MCON group was continuously fed a standard diet, while the other groups started receiving a high-fat diet at 15 months of age. At 18 months of age, the Liangyi Paste groups were administered the corresponding doses of Liangyi Paste by gavage, while the 20MCON and model groups were given an equal volume of saline by gavage. After 8 weeks of continuous gavage (when the mice reached 20 months of age), tissue samples were collected. Hepatic TG levels were measured using assay kits; liver histology and lipid deposition were observed via hematoxylin-eosin (HE) and oil red O staining; reactive oxygen species (ROS) were detected by enzyme-linked immunosorbent assay (ELISA); Cu2+, superoxide dismutase (SOD), and malondialdehyde (MDA) levels were measured by colorimetry; mRNA and protein expression of genes related to cuproptosis and oxidative stress pathways were analyzed by Real-time polymerase chain reaction(Real-time PCR) and Wes automated protein expression system. ResultsCompared with 12MCON, the 15MCON group showed significantly increased hepatic TG, Cu2+, ROS, and MDA levels (P<0.01), decreased SOD (P<0.01), hepatocyte swelling, and disordered arrangement. The mRNA and protein levels of ferredoxin 1 (FDX1), dihydrolipoamide S-acetyltransferase (DLAT), heat shock protein 70 (HSP70), dihydrolipoamide dehydrogenase (DLD), pyruvate dehydrogenase E1 subunit-β (PDHB), nuclear factor erythroid 2-related factor 2 (Nrf2), and peroxisome proliferator-activated receptor γ (PPARγ) were significantly elevated (P<0.05, P<0.01). Compared with 15MCON group, the 15MHFD and 20MCON groups exhibited further increases in TG, Cu2+, ROS, and MDA (P<0.01), reduced SOD (P<0.01), and aggravated hepatocyte swelling and disorder. There were increased lipid droplets with mild vacuolization in the 15MHFD group, and no significant lipid deposition was observed in the 20MCON group. FDX1, DLAT, HSP70, DLD, PDHB, Nrf2, and PPARγ mRNA and protein levels were significantly increased (P<0.05, P<0.01). Compared with 20MCON group, the model group demonstrated markedly elevated TG, Cu2+, ROS, and MDA (P<0.01), reduced SOD (P<0.01), severe hepatic steatosis, and upregulated expression of FDX1, DLAT, HSP70, DLD, PDHB, Nrf2, and PPARγ mRNA and proteins (P<0.05, P<0.01). All abnormalities were significantly reversed after Liangyi Paste treatment. ConclusionLiangyi paste can ameliorate hepatic lipid deposition in naturally aged mice with a high-fat diet by modulating the cuproptosis/oxidative stress pathway.
9.Evaluation of Pulmonary Air-Blood Barrier Damage in Ulcerative Colitis Inflammatory Cancer Transformation Model Mice:Based on the "Lung-Intestine Correlation" Theory
Huiyan XU ; Haimei ZHANG ; Xinyu ZHAN ; Fanwu WU ; Yongsen JIA ; Chenxi WU ; Lingyu KONG ; Xin YAN
Journal of Traditional Chinese Medicine 2026;67(7):776-783
ObjectiveTo dynamically observe and evaluate the damage to the pulmonary air-blood barrier in mice during the inflammatory cancer transformation process of ulcerative colitis (UC) based on the "lung-intestine correlation" theory. MethodsSixty-five C57BL/6 mice were divided into a normal group (n=25) and a model group (n=40) using a random number table. Azoxymethane/dextran sodium sulfate (DSS) method was used to establish a mouse model of UC inflammation cancer transformation in the modeling group. According to the tissue collection time points at 5, 8, 11, 13, and 15 weeks, the normal group mice were randomly divided into the normal 5w, 8w, 11w, 13w, and 15w groups. The model group mice, 10 mice of which died after the first cycle of DSS administration, were randomly divided into model 5w, 8w, 11w, 13w, and 15w groups. During the experiment, the general condition of the mice was observed daily, and their body weight was measured weekly. At the corresponding tissue collection time points, the colon length of each group was measured. Histopathology of mouse lung and colon tissues was examined using HE staining. Immunofluorescence was used to detect changes in the positive expression of tight junction protein (ZO-1), vascular endothelial cadherin (VE-cadherin), and cytoskeletal protein (F-actin) in lung and colon tissues. RT-PCR was used to detect the mRNA expression of apoptosis regulatory proteins B-cell lymphoma-2 (Bcl-2), BCL2-associated X protein (Bax), and Cysteine aspartic acid protease-3 (Caspase-3) in lung tissues. Western Blot was employed to measure protein levels of ZO-1, VE-cadherin, and F-actin in lung tissues. ResultsCompared to the normal group at the same time point, the mice in the model group at each time point generally had poorer conditions, with weight loss and shortened colon length (P<0.05 or P<0.01). In the model 5w group, there was significant inflammatory cell infiltration in the colon tissue; in the model 8w group, there was mild atypical hyperplasia; in the model 11w group, the crypt structure was disordered, and moderate to severe atypical hyperplasia occurred; in the model 13w and 15w groups, tumors appeared. Pulmonary interstitial lesions, inflammation, vasculitis, and fibrosis were observed at all stages of UC inflammation cancer transformation. The protein levels of ZO-1, VE-cadherin, and F-actin, as well as Bcl-2 mRNA expression in lung tissue decreased during the acute inflammatory recovery period, atypical hyperplasia period, and canceration period, while the expressions of Bax and Caspase-3 mRNA increased; the expressions of ZO-1, VE-cadherin, and F-actin proteins in colon tissue decreased during the acute inflammatory recovery period, atypical hyperplasia period, and canceration period (P<0.01 or P<0.05). Compared to the model 5w group, the ZO-1 and F-actin protein levels and Bcl-2 mRNA expression in lung tissue in the other model groups increased in the atypical hyperplasia period and canceration period, while the expressions of Bax and Caspase-3 mRNA decreased; the expression of ZO-1 protein in colon tissue increased in the canceration period, and the expression of VE-cadherin protein decreased in the atypical hyperplasia period (P<0.01 or P<0.05). ConclusionIn the process of "inflammatory response-atypical hyperplasia-carcinogenesis" in UC inflammatory cancer transformation mice, there were damage to air-blood barrier.
10.Mechanism of action of gut microbiota in chronic pancreatitis fibrosis and related treatment strategies
Yunjun YAN ; Liang SHENG ; Qi WANG ; Shun PENG ; Jia LI ; Lei ZHANG
Journal of Clinical Hepatology 2026;42(2):484-489
Chronic pancreatitis (CP) is a common disease in clinical practice characterized by progressive inflammatory fibrosis of the pancreas. Gut microbiota, known as the “second genome” of humans, bidirectionally modulates the progression of fibrosis in CP via the gut-pancreas axis. This article systematically elaborates on the characteristics of gut microbiota during the progression of CP and its molecular mechanism in mediating pancreatic fibrosis through bacterial translocation, metabolites, immune regulatory networks, and microbe-pancreatic stellate cell interactions, with a focus on the pivotal role of short-chain fatty acids and inflammatory cytokine networks in pancreatic stellate cell activation and extracellular matrix deposition. In addition, this article explores the potential value of gut microbiota-targeted interventions in the prevention and treatment of CP fibrosis, such as probiotics, prebiotics, and fecal microbiota transplantation, and discusses the translational potential of using multi-omics technologies to identify diagnostic biomarkers and novel therapeutic targets for CP, in order to provide new ideas for the precise diagnosis and treatment of CP.


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