1.WANG Yaoxian's Experience in Treating Diabetic Kidney Disease from the Perspective of Spleen and Stomach:Based on the Theory of "Internal Heat Leading to Concretions"
Bo ZHANG ; Yuxin HU ; Cong ZHAO ; Jiale ZHANG ; Weimin JIANG ; Chang YU ; Yang LIU ; Liqiao SUN ; Weiwei SUN ;
Journal of Traditional Chinese Medicine 2026;67(5):482-486
This paper summarizes Professor WANG Yaoxian's experience in treating diabetic kidney disease (DKD) from the perspective of spleen and stomach based on the "internal heat leading to concretions" theory. It is considered that internal heat leading to concretions constitutes the core pathogenesis of DKD, with the spleen and stomach serving as the source of internal heat; therefore, treatment should be based on regulating the spleen and stomach. In the early stage of DKD, dysfunction of the spleen and stomach leads to the initial generation of internal heat. Common syndrome patterns include gastrointestinal heat accumulation and constrained heat in the liver and stomach, for which modified Gegen Qinlian Decoction (葛根芩连汤) can be used to clear heat bind while modified Dachaihu Decoction (大柴胡汤) is used to clear stomach and soothe liver, respectively. In the middle stage of DKD, weakness of the spleen and stomach results in the initial formation of concretions and conglomerations. Common patterns include spleen deficiency with prevalence of dampness and deficiency of both the spleen and kidney. Treatment emphasizes strengthening the spleen and resolving dampness, raising yang and boosting the stomach with modified Shengyang Yiwei Decoction (升阳益胃汤), or supplementing spleen and boosting kidney, dissipating bind and dispe-ring concretions with modified Shenqi Dihuang Decoction (参芪地黄汤), respectively. In the late stage of DKD, it is characterized by spleen and stomach depletion, and rampant accumulation of turbidity and toxin, and the common syndrome patterns are damp-turbidity obstruction in the middle jiao (焦) and spleen-kidney yang deficiency. Treatment aims to remove turbidity and harmonize the stomach, or to warm the kidney and strengthen the spleen while elimina-ting turbidity, using modified Dahuang Gancao Decoction(大黄甘草汤) and Jupi Zhuru Decoction (橘皮竹茹汤) or modified Baoyuan Decoction (保元汤) and Lizhong Decoction (理中汤), respectively. In clinical practice, appropriate formulas and medications are flexibly selected according to specific syndromes.
2.A cross-sectional study on healthy lifestyle and the risk of anxiety and depression among adults undergoing health examinations.
Yangyiyi YU ; Jiale LIU ; Pu PENG ; Ting YUAN ; Jinrong ZENG ; Jianyun LU
Journal of Central South University(Medical Sciences) 2025;50(8):1428-1442
OBJECTIVES:
Depressive and anxiety disorders are among the most common mental disorders worldwide and are associated with unhealthy lifestyle behaviors. The Life's Simple 7 (LS7) guideline proposed by the American Heart Association aims to reduce cardiovascular risk by improving behaviors such as diet and physical activity, but its impact on mental health is not yet fully clear. This study examined the association between LS7 scores and symptoms of anxiety and depression in adults undergoing routine health examinations.
METHODS:
Data were collected from individuals who underwent health examinations from May 2015 to December 2024 at the Health Management Center of the Third Xiangya Hospital. All participants completed the LS7 assessments, the Self-Rating Depression Scale (SDS), and the Self-Rating Anxiety Scale (SAS). Participants were categorized into 4 LS7 score groups: Low (≤7), average (8-9), good (10), and excellent (11-14). Those with SDS or SAS≥50 were classified as having mental disorder symptoms; with this group, SAS≥50 indicated anxiety, SDS≥50 indicated depression, and SDS and SAS≥50 indicated comorbid anxiety-depression. Binary logistic regression was used to assess associations between LS7 score and mental symptoms, calculating odds ratio (OR) and 95% confidence interval (CI). A restricted cubic spline (RCS) regression model was used to analyze the dose-response relationship between LS7 score (continuous variable) and the risk of mental symptoms. Nodes were set at the 5th, 35th, 65th, and 95th percentiles of the LS7 score, with the 5th percentile as the reference point. All models were adjusted for covariates such as gender, age, living alone, drinking status, education level, and sleep quality. Logistic regression framework was used to fit and calculate the adjusted OR (aOR) and 95% CI. Nonlinear relationship tests were also conducted. Subgroup analysis was performed to explore the interaction between gender, age, drinking habits, education level, and other factors and the LS7 score in influencing the risk of mental symptoms.
RESULTS:
A total of 5 449 participants were included; 1 363 (25.01%) had depressive symptoms, 398 (7.30%) had anxiety symptoms, and 259 (4.75%) had comorbid anxiety-depression. The prevalence of mental symptoms decreased significantly as LS7 scores increased. Univariate and multivariate Logistic regression indicated that LS7 score≥8 was protective against mental symptoms. Multivariate Logistic regression demonstrated moderate discriminative ability (AUC=0.672). Among individuals with anxiety, depression, or comorbid symptoms, LS7 score distributions showed a graded decrease from poor to excellent groups. After adjustment, an excellent LS7 score was associated with a 39% lower risk of depression (aOR=0.61, 95% CI 0.47 to 0.78, P<0.001), a 63% lower risk of anxiety (aOR=0.37, 95% CI 0.22 to 0.59, P<0.001), and a 66% lower risk of comorbid anxiety-depression (aOR=0.34, 95% CI 0.17 to 0.62, P=0.001). The AUC values of the anxiety model, depression model, and comorbid anxiety and depression model were 0.632, 0.672, and 0.619, respectively. All models demonstrated moderate discriminatory ability, which was statistically significant, but their capacity to distinguish cases from non-cases was limited. RCS analysis confirmed a linear inverse relationship between LS7 score and mental symptom risk. Not smoking and regular physical activity were the strongest protective behaviors. Subgroup analysis suggested stronger protective effects in men, younger adults (≤60), non-drinkers, and those with higher education levels, and revealed a significant interaction between alcohol use and LS7 score (P for interaction=0.021), indicating that alcohol consumption may weaken the protective effect of LS7.
CONCLUSIONS
Ideal healthy lifestyle behaviors, as reflected by higher LS7 scores, are associated with lower risks of anxiety and depression in adults. Promoting LS7-based lifestyle practices may serve as a practical and effective strategy for the prevention and management of anxiety and depression in both clinical and daily life settings.
Humans
;
Cross-Sectional Studies
;
Depression/epidemiology*
;
Anxiety/epidemiology*
;
Adult
;
Male
;
Female
;
Middle Aged
;
Healthy Lifestyle
;
Risk Factors
;
Anxiety Disorders/epidemiology*
;
Exercise
;
Physical Examination
;
Aged
3.Artificial intelligence-based sequential ultrasound-MRI strategy for ovarian masses:dual evaluation of diagnostic accuracy and healthcare costs
Jingjing YU ; Ruixia DAI ; Xiaomin LIU ; Peijun HU ; Xiaochen WANG ; Sihui HU ; Shanshan ZHANG ; Wenqian WANG ; Yu TIAN ; Jiale QIN
Chinese Journal of Ultrasonography 2025;34(9):759-765
Objective:To develop an artificial intelligence(AI)-based sequential ultrasound-magnetic resonance imaging(US-MRI)diagnostic strategy to optimize the imaging workflow for ovarian masses.Methods:A total of 1 120 patients with pathologically confirmed ovarian masses who underwent both preoperative pelvic ultrasound and MRI between January 2021 and December 2023 at Women's Hospital,Zhejiang University School of Medicine were retrospectively included. Patients were randomly divided into the training( n=672)and internal test set( n=448)at a ratio of 6∶4. An external test set( n=128)was established at the Forth Affiliated Hospital of School of Medicine. Deep learning was used for automated segmentation of MRI lesions,followed by radiomic feature extraction and machine learning classification to construct both a US-MRI multimodal model and sequential US-MRI strategy. Diagnostic performance and potential healthcare cost-saving effects were evaluated across strategies. Results:In the internal test set( n=448),the AI-based sequential US-MRI strategy achieved a F1 score of 0.863 and a diagnostic accuracy of 82.14%,with no significant difference compared to the US-MRI multi-modal model( P>0.05). The sequential strategy identified 82 cases(18.30%,82/448)of patients as low-risk true negatives during initial ultrasound screening,suggesting a potential to reduce the need for MRI examinations in future clinical practice. In the external test set( n=128),the strategy achieved an F1 score of 0.800 and a confirmed diagnosis rate of 85.94%,with a theoretical reduction of 26.56%(34 cases)in MRI utilization while maintaining a diagnostic accuracy rate higher than that of the multi-modal model(82.18%). Conclusions:The AI-based US-MRI sequential diagnostic strategy demonstrates favorable diagnostic accuracy while offering the potential to optimize MRI utilization. This approach may enhance the efficiency of imaging resource allocation and reduce healthcare burden in the management of ovarian masses.
4.FTO-regulated m6A modification of pri-miR-139 represses papillary thyroid carcinoma metastasis.
Jiale LI ; Ping ZHOU ; Juan DU ; Hongwei SHEN ; Yongfeng ZHAO ; Shanshan YU
Journal of Central South University(Medical Sciences) 2025;50(5):815-826
OBJECTIVES:
Increasing detection of low-risk papillary thyroid carcinoma (PTC) is associated with overdiagnosis and overtreatment. N6-methyladenosine (m6A)-mediated microRNA (miRNA) dysregulation plays a critical role in tumor metastasis and progression. However, the functional role of m6A-miRNAs in PTC remains unclear. This study aims to elucidate the regulatory mechanism of m6A-miR-139-5p expression in PTC, determine its association with PTC metastasis, and evaluate its potential as a diagnostic biomarker for PTC metastasis, thereby providing experimental evidence for precision diagnosis and therapy.
METHODS:
Expression profiles of m6A-miRNAs were compared between the The Cancer Genome Atlas (TCGA) and GSE130512 cohorts to identify metastasis-associated candidates. Clinical specimens from 13 metastasis and 18 non-metastasis PTC patients were analyzed to assess m6A-miR-139-5p expression and its correlation with metastasis. Functional experiments were conducted to investigate the effect of fat mass and obesity-associated protein (FTO) on pri-miR-139 methylation and processing, clarifying its regulatory role in miR-139-5p expression. In TPC-1 cells, MTT assays were performed to evaluate whether miR-139-5p overexpression could counteract FTO-mediated cell proliferation. Transwell invasion assays were used to determine the impact of miR-139-5p on PTC cell invasion, exploring whether it functions through the ZEB1/E-cadherin axis.
RESULTS:
By comparing TCGA and GSE130512 cohorts, it was found that circulating m6A-miR-139-5p could serve as a biological indicator for detecting PTC metastasis. Detection of 13 metastatic and 18 non-metastatic clinical specimens showed that FTO inhibited the processing of pri-miR-139 by reducing its methylation level, leading to the dysregulation of miR-139-5p in PTC (P<0.05). In TPC-1 cells, MTT assay showed that overexpression of miR-139-5p could partially reverse FTO overexpression-mediated cell proliferation (P<0.05). In addition, miR-139-5p inhibited the invasive ability of PTC cells by targeting the ZEB1/E-cadherin axis, while FTO overexpression could partially weaken this inhibitory effect.
CONCLUSIONS
Circulating miR-139-5p can be a potential marker for evaluating PTC metastasis. FTO affects the expression and function of miR-139-5p by regulating m6A modification of pri-miR-139, but its clinical value needs further verification.
Humans
;
MicroRNAs/metabolism*
;
Thyroid Cancer, Papillary/metabolism*
;
Alpha-Ketoglutarate-Dependent Dioxygenase FTO/metabolism*
;
Thyroid Neoplasms/metabolism*
;
Cell Line, Tumor
;
Neoplasm Metastasis
;
Adenosine/genetics*
;
Gene Expression Regulation, Neoplastic
;
Female
;
Male
;
Cadherins/metabolism*
;
Cell Proliferation
;
Zinc Finger E-box-Binding Homeobox 1/genetics*
5.Hypoxic transcriptional phenotype and cellular ultrastructural changes of tumor-associated macrophages in gliomas
Haizhen FAN ; Lixia WANG ; Yue CHENG ; Lujing WANG ; Qianying RUAN ; Jiale JI ; Mengru WANG ; Zhen QIN ; Yi ZHANG ; Zhicheng HE ; Yifang PING ; Yu SHI
Journal of Army Medical University 2025;47(9):904-911
Objective To investigate the effects of hypoxia on the transcriptional phenotype and ultrastructure of tumor-associated macrophages(TAMs)in glioma.Methods CD14+monocytes were isolated from healthy human peripheral blood samples collected from the Blood Bank of the First Affiliated Hospital of Army Medical University,and the cells were induced to differentiate into TAMs through co-culture with glioma cell-conditioned medium.Hypoxic TAM models were established using varying concentrations of cobalt chloride hexahydrate(CoCl2,50~400 μmol/L)or hypoxic conditions(1%,5%,10%O2)for 48 h,while normoxic TAM models(21%O2)served as controls.RT-qPCR and transcriptome sequencing were employed to analyze transcriptional changes in TAMs under normoxic and hypoxic conditions.Gene set enrichment analysis(GSEA)was applied to compare the differences in angiogenesis,glycolysis and other hypoxia-responsive pathways between the 2 conditions.Transmission electron microscopy(TEM)or immunofluorescence staining was conducted to assess the ultrastructural alterations in cytoskeleton,endoplasmic reticulum(ER),and mitochondria in normoxic and hypoxic TAMs(1%O2).Results Hypoxic TAMs exhibited up-regulated transcription of hypoxia-responsive markers(oxygen transport,glycolysis,pro-angiogenesis),with the effects correlating with hypoxia severity(P<0.05).GSEA revealed significant up-regulation of hypoxia,angiogenesis regulation,glycolysis and gluconeogenesis,and starvation stress pathways,alongside down-regulation of innate immunity,macrophage activation,cytoskeleton,and protein maturation pathways in hypoxic TAMs(P<0.05).TEM and immunofluorescence staining demonstrated obvious ultrastructure changes,including disrupted cytoskeletal organization,shortened rough ER with reduced ribosomes,mitochondrial swelling with cristae damage,and diminished ER-mitochondria contacts in hypoxic TAMs.Conclusion CoCl2 and hypoxia induce a hypoxic transcriptional phenotype in TAMs,which may potentially associated with ultrastructural remodeling of the cytoskeleton,ER,and mitochondria.
6.Clinical-MRI radiomics combined model for differentiating borderline ovarian tumor from epithelial ovarian cancer
Xiaomin LIU ; Yu ZOU ; Jingjing YU ; Xiaochen WANG ; Yuhan LIN ; Jiale QIN
Chinese Journal of Medical Imaging Technology 2025;41(10):1701-1705
Objective To explore the value of clinical-MRI radiomics combined model for differentiating borderline ovarian tumor(BOT)from epithelial ovarian cancer(EOC).Methods Totally 139 patients with BOT(BOT group)and 307 patients with EOC(EOC group)confirmed by postoperative pathology and underwent preoperative pelvic MRI were retrospectively enrolled and randomly divided into training set(n=312)and test set(n=134)at a ratio of 7∶3.Multivariable logistic regression was used to identify independent clinical predictors for differentiating BOT and EOC,then a clinical model was constructed.Radiomics features were extracted from the volumes of interest(VOI)of lesions on T2WI,diffusion weighted imaging(DWI)and apparent diffusion coefficient(ADC)images,respectively,and single-sequence and multi-sequence MRI radiomics models were built using extreme gradient boosting(XGBoost)based on data in training set.The optimal MRI radiomics model was selected according to the highest area under the curve(AUC)in test set,and a clinical-MRI radiomics combined model was constructed combined the optimal radiomics model with independent clinical predictors.The performances of clinical model,the optimal MRI radiomics model and the combined model for differentiating BOT and EOC were compared in test set.SHapley Additive exPlanations(SHAP)analysis was applied to interpret key predictive features in the best model.Results Patients' age,carbohydrate antigen 153(CA153)and carbohydrate antigen 125(CA125)were all independent predictors for differentiating BOT and EOC(all P<0.05).Multi-sequence MRI radiomics model was the optimal MRI radiomics model.The combined model showed superior performance(AUC=0.929)for discriminating BOT and EOC compared with clinical model(AUC=0.881)and multi-sequence MRI radiomics model(AUC=0.871)(both P<0.05).SHAP beeswarm plot revealed that the top 10 important features of combined model included age,CA153 and CA125,as well as entropy,kurtosis and gray level non-uniformity from ADC and DWI sequences.Conclusion Clinical-MRI radiomics combined model based on multi-sequence MRI radiomics features and clinical features could be used to effectively differentiate BOT from EOC.
7.A Retrospective Cohort Study on the Improvement of Prognosis of Hospitalized COVID-19 Patients Using Traditional Chinese Medicine Preparations
Li DOU ; Wei WANG ; Manshu YU ; Sicheng YUAN ; Jingyi HU ; Yuwen ZHUANG ; Minghao QI ; Yuanyuan WANG ; Fei YANG ; Jiale MENG ; Tao GUO ; Xiaoxiao WANG
Journal of Nanjing University of Traditional Chinese Medicine 2025;41(11):1585-1595
OBJECTIVE The emergence of evolving variants of Coronavirus disease 2019(COVID-19)has fostered the need for change of newer and adaptive treatments for these infections.During the COVID-19 pandemic and persists,traditional Chinese medicine(TCM)herbs exhibit significant bioactivity and therapeutic effect.This study is aimed to evaluate the efficacy of four TCM preparations on 28-day mortality risk of patients and changes of the laboratory indicators.METHODS The retrospective cohort study included patients with COVID-19 who were admitted to the Jiangsu Province Hospital of Chinese Medicine from December 15,2022 to January 15,2023,and those died within 48 hours of admission or cannot be tracked for outcomes were excluded.The pri-mary outcome was survival status in 28 days(death or survival)starting from the day of admission.The second outcomes were labora-tory indicators,including absolute lymphocyte count,lactate dehydrogenase,creatinine,and blood urea nitrogen.Binary logistic re-gressions were used to estimate the effect of TCM preparations on the primary and secondary outcomes in main analysis.Meanwhile,heterogeneity and robustness of results from main analysis were assessed by subgroup analyses and multiple sensitivity analyses.RESULTS 1 816 eligible patients were included in analysis dataset,including 573 patients received standard care(control group)and 1 243 patients received TCM preparations(hospital preparation group).The 28-day mortality rate of hospital preparation group was lower than that of control group(4.75%vs.14.83%),and the difference was statistically significant(χ2=54.666,P<0.001).The risk of 28-day mortality was 0.535 times lower in the hospital preparation group as compared with the control group(OR=0.46,95%CI:0.305-0.708,P<0.001)showed by multivariable binary logistic regressions.Subgroup analyses showed that taking TCM preparations reduced the 28-day mortality risk.Sensitivity analyses demonstrated that the results of the main analysis for primary outcomes were robust.For secondary outcomes,the risk of abnormal absolute lymphocyte counts at discharge in the hospital prepara-tion group decreased by 0.284 times(OR=0.703,95%CI:0.515-0.961,P=0.027).CONCLUSION Compared with standard of care,taking four hospital preparations including Kanggan Heji,Feining Heji,Qishen Gubiao Keli,and Qianghuo Qushi Qingwen Heji decreased risk of 28-day mortality among hospitalized COVID-19 patients.TCM therapy achieves adequate therapeutic effects in COVID-19.
8.Plumbagin ameliorates pulmonary fibrosis by modulating TGF-β1/Smad2 and Nrf2/NOX4 pathways
Hui LI ; Hengzhao HU ; Tingting YU ; Huixian HU ; Jiale WANG ; Jing WU ; Wei HAO
Chinese Journal of Clinical Pharmacology and Therapeutics 2025;30(1):61-69
AIM:To investigate the protective ef-fect of plumbagin(PL)against pulmonary fibrosis(PF)and its possible mechanisms.METHODS:Sixty male C57BL/6 mice were randomly divided into control,bleomycin group(BLM),low dose PL group(1 mg/kg)and high dose PL group(2 mg/kg).The mice PF model was replicated using intratracheal injection of BLM(3 mg/kg),and then PL(1 or 2 mg/kg)was injected intraperitoneally for 3 weeks and the animals were executed.HE and Masson staining were used to observe morphological changes in lung tissue and collagen deposition.The activities or levels of superoxide dismutase(SOD),glutathione(GSH),malondialdehyde(MDA)and hy-droxyproline(HYP)were measured in mouse lung tissue;ELISA for interleukin-6(IL-6)in mouse lung tissue.Immunohistochemical detection of nuclear factor-related factor 2(Nrf2)and reduced nicotin-amide adenine dinucleotide phosphate oxidase 4(NOX4)positive cell expression in mouse lung tis-sue.The expression levels of α-smooth muscle ac-tin(α-SMA),collagen Ⅰ(Col Ⅰ),collagen Ⅲ(Col Ⅲ),IL-6,transforming growth factor-β1(TGF-β1),p-Smad2,Nrf2 and NOX4 were detected by Western blotting.RESULTS:Compared with the BLM group,PL treatment attenuated lung parenchymal and in-terstitial injury and extracellular matrix deposition in mice,reduced HYP content(P<0.01,P<0.05),de-creased protein expression of α-SMA,collagen Ⅰand Ⅲ(P<0.01,P<0.05),diminished IL-6 secretion(P<0.01);improved the body's antioxidant capacity(increased SOD and GSH activity and decreased MDA content,P<0.01,P<0.05),significantly down-regulated TGF-β1,p-Smad2 and NOX4-positive cells and protein expression(P<0.01,P<0.05)and up-regulated Nrf2-positive cells and protein expression(P<0.01,P<0.05).CONCLUSION:PL may slow down the PF process by modulating the TGF-β1/Smad2 and Nrf2/NOX4 pathways to attenuate inflammato-ry responses and collagen deposition and improve the body's antioxidant capacity.
9.A Retrospective Cohort Study on the Improvement of Prognosis of Hospitalized COVID-19 Patients Using Traditional Chinese Medicine Preparations
Li DOU ; Wei WANG ; Manshu YU ; Sicheng YUAN ; Jingyi HU ; Yuwen ZHUANG ; Minghao QI ; Yuanyuan WANG ; Fei YANG ; Jiale MENG ; Tao GUO ; Xiaoxiao WANG
Journal of Nanjing University of Traditional Chinese Medicine 2025;41(11):1585-1595
OBJECTIVE The emergence of evolving variants of Coronavirus disease 2019(COVID-19)has fostered the need for change of newer and adaptive treatments for these infections.During the COVID-19 pandemic and persists,traditional Chinese medicine(TCM)herbs exhibit significant bioactivity and therapeutic effect.This study is aimed to evaluate the efficacy of four TCM preparations on 28-day mortality risk of patients and changes of the laboratory indicators.METHODS The retrospective cohort study included patients with COVID-19 who were admitted to the Jiangsu Province Hospital of Chinese Medicine from December 15,2022 to January 15,2023,and those died within 48 hours of admission or cannot be tracked for outcomes were excluded.The pri-mary outcome was survival status in 28 days(death or survival)starting from the day of admission.The second outcomes were labora-tory indicators,including absolute lymphocyte count,lactate dehydrogenase,creatinine,and blood urea nitrogen.Binary logistic re-gressions were used to estimate the effect of TCM preparations on the primary and secondary outcomes in main analysis.Meanwhile,heterogeneity and robustness of results from main analysis were assessed by subgroup analyses and multiple sensitivity analyses.RESULTS 1 816 eligible patients were included in analysis dataset,including 573 patients received standard care(control group)and 1 243 patients received TCM preparations(hospital preparation group).The 28-day mortality rate of hospital preparation group was lower than that of control group(4.75%vs.14.83%),and the difference was statistically significant(χ2=54.666,P<0.001).The risk of 28-day mortality was 0.535 times lower in the hospital preparation group as compared with the control group(OR=0.46,95%CI:0.305-0.708,P<0.001)showed by multivariable binary logistic regressions.Subgroup analyses showed that taking TCM preparations reduced the 28-day mortality risk.Sensitivity analyses demonstrated that the results of the main analysis for primary outcomes were robust.For secondary outcomes,the risk of abnormal absolute lymphocyte counts at discharge in the hospital prepara-tion group decreased by 0.284 times(OR=0.703,95%CI:0.515-0.961,P=0.027).CONCLUSION Compared with standard of care,taking four hospital preparations including Kanggan Heji,Feining Heji,Qishen Gubiao Keli,and Qianghuo Qushi Qingwen Heji decreased risk of 28-day mortality among hospitalized COVID-19 patients.TCM therapy achieves adequate therapeutic effects in COVID-19.
10.Plumbagin ameliorates pulmonary fibrosis by modulating TGF-β1/Smad2 and Nrf2/NOX4 pathways
Hui LI ; Hengzhao HU ; Tingting YU ; Huixian HU ; Jiale WANG ; Jing WU ; Wei HAO
Chinese Journal of Clinical Pharmacology and Therapeutics 2025;30(1):61-69
AIM:To investigate the protective ef-fect of plumbagin(PL)against pulmonary fibrosis(PF)and its possible mechanisms.METHODS:Sixty male C57BL/6 mice were randomly divided into control,bleomycin group(BLM),low dose PL group(1 mg/kg)and high dose PL group(2 mg/kg).The mice PF model was replicated using intratracheal injection of BLM(3 mg/kg),and then PL(1 or 2 mg/kg)was injected intraperitoneally for 3 weeks and the animals were executed.HE and Masson staining were used to observe morphological changes in lung tissue and collagen deposition.The activities or levels of superoxide dismutase(SOD),glutathione(GSH),malondialdehyde(MDA)and hy-droxyproline(HYP)were measured in mouse lung tissue;ELISA for interleukin-6(IL-6)in mouse lung tissue.Immunohistochemical detection of nuclear factor-related factor 2(Nrf2)and reduced nicotin-amide adenine dinucleotide phosphate oxidase 4(NOX4)positive cell expression in mouse lung tis-sue.The expression levels of α-smooth muscle ac-tin(α-SMA),collagen Ⅰ(Col Ⅰ),collagen Ⅲ(Col Ⅲ),IL-6,transforming growth factor-β1(TGF-β1),p-Smad2,Nrf2 and NOX4 were detected by Western blotting.RESULTS:Compared with the BLM group,PL treatment attenuated lung parenchymal and in-terstitial injury and extracellular matrix deposition in mice,reduced HYP content(P<0.01,P<0.05),de-creased protein expression of α-SMA,collagen Ⅰand Ⅲ(P<0.01,P<0.05),diminished IL-6 secretion(P<0.01);improved the body's antioxidant capacity(increased SOD and GSH activity and decreased MDA content,P<0.01,P<0.05),significantly down-regulated TGF-β1,p-Smad2 and NOX4-positive cells and protein expression(P<0.01,P<0.05)and up-regulated Nrf2-positive cells and protein expression(P<0.01,P<0.05).CONCLUSION:PL may slow down the PF process by modulating the TGF-β1/Smad2 and Nrf2/NOX4 pathways to attenuate inflammato-ry responses and collagen deposition and improve the body's antioxidant capacity.

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