1.Clinical Effect of Xiaozhi Hugan Capsules in Treatment of Patients with Non-alcoholic Steatohepatitis and Its Impact on Serum IL-6 and MCP-1
Xiaoyan LIU ; Suping MA ; Qingliang MA ; Chunxiao LI ; Lihui ZHANG ; Huaxin CHEN ; Wenxia ZHAO
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(12):185-192
ObjectiveTo observe the clinical effect of Xiaozhi Hugan capsules in treating patients with non-alcoholic steatohepatitis (NASH) combined with phlegm-dampness and blood stasis syndrome and its effects on serum interleukin-6 (IL-6) and monocyte chemoattractant protein-1 (MCP-1). MethodsA total of 124 patients with NASH combined with phlegm-dampness and blood stasis syndrome who were admitted to the Department of Spleen, Stomach, and Hepatobiliary Diseases, the First Affiliated Hospital of Henan University of Chinese Medicine from July 2020 to December 2022 were selected. According to the random number table method, patients were randomly divided into an observation group (62 cases) and a control group (62 cases). The treatment duration was 6 months. The observation group received Xiaozhi Hugan capsules orally, while the control group received polyene phosphatidylcholine capsules. The efficacy indicators included alanine aminotransferase (ALT), aspartate aminotransferase (AST), controlled attenuation parameter (CAP), liver stiffness measurement (LSM), traditional Chinese medicine (TCM) syndrome scores (discomfort/dull pain/distending pain in liver region, fatigue, etc.), body mass index (BMI), waist-to-height ratio (WHtR), high-density lipoprotein cholesterol (HDL-C), total cholesterol (TC), triglycerides (TG), homeostatic model assessment for insulin resistance (HOMA-IR) [including fasting blood glucose (FBG) and fasting insulin level (INS)], free fatty acids (FFA), IL-6, and MCP-1. Adverse drug reactions were recorded. ResultsAfter treatment, the total effective rate in the observation group was 92.3% (48/52), while that in the control group was 75.5% (39/49). The total effective rate in the observation group was higher than that in the control group (χ2=5.339, P<0.05). After treatment, the TCM syndrome scores in both groups were significantly reduced (P<0.05), and the post-treatment scores in the observation group were better than those in the control group (P<0.05). After treatment, the levels of ALT, AST, TC, FFA, fasting insulin (FINS), HOMA-IR, MCP-1, IL-6, CAP, LSM, BMI, and WHtR were decreased (P<0.05) significantly in both groups, and the observation group showed superior improvement in the above indicators compared to the control group (P<0.05). The observation group exhibited significant reductions in TG and FBG (P<0.05) and an increase in HDL-C (P<0.05), while no significant changes were observed in the control group. The observation group was superior to the control group after treatment (P<0.05). No severe adverse reactions occurred in either group during the treatment. ConclusionXiaozhi Hugan capsules have significant clinical efficacy in treating patients with NASH combined with phlegm-dampness and blood stasis syndrome. It reduces hepatic steatosis, lowers liver stiffness, inhibits the expression of serum inflammatory factors, and alleviates liver inflammation. No obvious adverse reactions occur, suggesting it is suitable for clinical application.
2.Clinical Effect of Xiaozhi Hugan Capsules in Treatment of Patients with Non-alcoholic Steatohepatitis and Its Impact on Serum IL-6 and MCP-1
Xiaoyan LIU ; Suping MA ; Qingliang MA ; Chunxiao LI ; Lihui ZHANG ; Huaxin CHEN ; Wenxia ZHAO
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(12):185-192
ObjectiveTo observe the clinical effect of Xiaozhi Hugan capsules in treating patients with non-alcoholic steatohepatitis (NASH) combined with phlegm-dampness and blood stasis syndrome and its effects on serum interleukin-6 (IL-6) and monocyte chemoattractant protein-1 (MCP-1). MethodsA total of 124 patients with NASH combined with phlegm-dampness and blood stasis syndrome who were admitted to the Department of Spleen, Stomach, and Hepatobiliary Diseases, the First Affiliated Hospital of Henan University of Chinese Medicine from July 2020 to December 2022 were selected. According to the random number table method, patients were randomly divided into an observation group (62 cases) and a control group (62 cases). The treatment duration was 6 months. The observation group received Xiaozhi Hugan capsules orally, while the control group received polyene phosphatidylcholine capsules. The efficacy indicators included alanine aminotransferase (ALT), aspartate aminotransferase (AST), controlled attenuation parameter (CAP), liver stiffness measurement (LSM), traditional Chinese medicine (TCM) syndrome scores (discomfort/dull pain/distending pain in liver region, fatigue, etc.), body mass index (BMI), waist-to-height ratio (WHtR), high-density lipoprotein cholesterol (HDL-C), total cholesterol (TC), triglycerides (TG), homeostatic model assessment for insulin resistance (HOMA-IR) [including fasting blood glucose (FBG) and fasting insulin level (INS)], free fatty acids (FFA), IL-6, and MCP-1. Adverse drug reactions were recorded. ResultsAfter treatment, the total effective rate in the observation group was 92.3% (48/52), while that in the control group was 75.5% (39/49). The total effective rate in the observation group was higher than that in the control group (χ2=5.339, P<0.05). After treatment, the TCM syndrome scores in both groups were significantly reduced (P<0.05), and the post-treatment scores in the observation group were better than those in the control group (P<0.05). After treatment, the levels of ALT, AST, TC, FFA, fasting insulin (FINS), HOMA-IR, MCP-1, IL-6, CAP, LSM, BMI, and WHtR were decreased (P<0.05) significantly in both groups, and the observation group showed superior improvement in the above indicators compared to the control group (P<0.05). The observation group exhibited significant reductions in TG and FBG (P<0.05) and an increase in HDL-C (P<0.05), while no significant changes were observed in the control group. The observation group was superior to the control group after treatment (P<0.05). No severe adverse reactions occurred in either group during the treatment. ConclusionXiaozhi Hugan capsules have significant clinical efficacy in treating patients with NASH combined with phlegm-dampness and blood stasis syndrome. It reduces hepatic steatosis, lowers liver stiffness, inhibits the expression of serum inflammatory factors, and alleviates liver inflammation. No obvious adverse reactions occur, suggesting it is suitable for clinical application.
3.Clinical Study on Treatment of Non-alcoholic Steatohepatitis Patients with Dyslipidemia by Dizhuo Huayu Prescription with Catgut Embedding Therapy
Xiaoyan LIU ; Dongfang SHANG ; Lihui ZHANG ; Chenlu ZHAO ; Siying WANG ; Huaxin CHEN ; Wenxia ZHAO
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(20):152-159
ObjectiveTo observe the clinical efficacy and safety of Dizhuo Huayu prescription combined with catgut embedding therapy in patients with nonalcoholic steatohepatitis (NASH) and dyslipidemia and explore the effect of the combined therapy on inflammatory cytokines interleukin (IL)-18 and IL-1β. MethodsA total of 82 patients with NASH and dyslipidemia from the Gastroenterology Department of the First Affiliated Hospital of Henan University of Chinese Medicine were randomly divided into a control group and a treatment group, with 41 patients in each group. The control group received Polyene Polyenylphosphatidylcholine Capsules, while the treatment group received Dizhuo Huayu prescription granules combined with catgut embedding. The treatment duration was 24 weeks for both groups. At weeks 0, 12, and 24, the traditional Chinese medicine (TCM) syndrome score, body mass index (BMI), liver fat content assessed by Fibroscan (CAP value), the level of alanine transaminase (ALT), aspartate aminotransferase (AST), gamma-glutamyl transferase (GGT), total cholesterol (TC), triglyceride (TG), high-density lipoprotein cholesterol (HDL-C), low-density lipoprotein cholesterol (LDL-C), and free fatty acid (FFA), and the expression of inflammatory cytokines IL-18 and IL-1β in serum were observed. Adverse reactions in both groups were recorded. ResultsA comparison of the comprehensive therapeutic effects between the two groups after 24 weeks of treatment revealed that the total effective rate was 62.16% (23/37) in the control group and 85.71% (30/35) in the treatment group, with a statistically significant difference (χ2 = 5.14, P<0.05). At weeks 12 and 24 after treatment, the TCM syndrome score, BMI, CAP value, TC, TG, LDL-C, and FFA were all significantly lower in both groups compared to pre-treatment levels, while the HDL-C level significantly increased (P<0.05). The effect was better at week 24 (P<0.05) than at week 12 (P<0.05), and the treatment group showed better outcomes than the control group at weeks 12 and 24 after treatment (P<0.05). After 24 weeks of treatment, both groups exhibited significant reductions in IL-18 and IL-1β levels (P<0.05). The treatment group demonstrated superior efficacy compared to the control group after treatment (P<0.05). Both groups experienced decreases in ALT, AST, and GGT levels after treatment (P<0.05). However, there were no statistically significant differences between the 12-week and 24-week post-treatment values within each group, nor were there significant differences between the two groups. No significant adverse reactions were observed in both groups. ConclusionThe Dizhuo Huayu prescription combined with catgut embedding therapy is safe and effective in treating patients with NASH and dyslipidemia, exhibiting hepatoprotective, anti-inflammatory, lipid-regulating, and weight-reducing effects.
4.Evidence that metformin promotes fibrosis resolution via activating alveolar epithelial stem cells and FGFR2b signaling.
Yuqing LV ; Yanxia ZHANG ; Xueli GUO ; Baiqi HE ; Haibo XU ; Ming XU ; Lihui ZOU ; Handeng LYU ; Jin WU ; Pingping ZENG ; Saverio BELLUSCI ; Xuru JIN ; Chengshui CHEN ; Young-Chang CHO ; Xiaokun LI ; Jin-San ZHANG
Acta Pharmaceutica Sinica B 2025;15(9):4711-4729
Idiopathic pulmonary fibrosis (IPF) is a progressive disease lacking effective therapy. Metformin, an antidiabetic medication, has shown promising therapeutic properties in preclinical fibrosis models; however, its precise cellular targets and associated mechanisms in fibrosis resolution remain incompletely defined. Most research on metformin's effects has focused on mesenchymal and inflammatory responses with limited attention to epithelial cells. In this study, we utilized Sftpc lineage-traced and Fgfr2b conditional knockout mice, along with BMP2/PPARγ and AMPK inhibitors, to explore metformin's impact on alveolar epithelial cells in a bleomycin-induced pulmonary fibrosis model and cell culture. We found that metformin increased the proliferation and differentiation of alveolar type 2 (AT2) cells, particularly the recently identified injury-activated alveolar progenitors (IAAPs)-a subpopulation characterized by low SFTPC expression but enriched for PD-L1. Single-cell RNA sequencing revealed a reduction in apoptosis among mature AT2 cells. Interestingly, metformin's therapeutic effects were not significantly affected by BMP2 or PPARγ inhibition, which blocked the lipogenic differentiation of myofibroblasts. However, Fgfr2b deletion in Sftpc lineage cells significantly impaired metformin's ability to promote fibrosis resolution, a process linked to AMPK signaling. In conclusion, metformin alleviates fibrosis by directly activating AT2 cells, especially the IAAPs, through a mechanism that involves AMPK and FGFR2b signaling, but is largely independent of BMP2/PPARγ pathways.
5.Screening and validation of chemoresistance marker in lung adenocarcinoma based on gene expression profile
Handong Wei ; Shuxing Chen ; Linting Liu ; Zihan Jing ; Yiting Yang ; Qiong Song ; Wenchu Wang ; Chunlin Zou ; Lihui Wang
Acta Universitatis Medicinalis Anhui 2025;60(10):1818-1827
Objective:
To discover molecular markers associated with lung adenocarcinoma diagnosis/prognosis and drug resistance through screening of differentially expressed genes based on published chip data in gene expression databases using bioinformatics methods.
Methods:
Comprehensive analysis was performed in available mRNA microarray datasets including lung adenocarcinoma tissues dataset GSE32863 and lung adenocarcinoma taxane-platin resistance dataset GSE77209 from the gene expression omnibus(GEO) database. Gene ontology enrichment analysis, gene pathway enrichment analysis and protein interaction network analysis were performed based on significantly correlated genes. The expression level of genes was validated in the cancer genome atlas(TCGA) dataset. Survival differences were assessed by the log-rank test in TCGA lung adenocarcinoma dataset. Based on the publications genomics of drug sensitivity in cancer(GDSC) database in CellMiner cross database(CellMiner CDB), Pearson correlation analysis was used to analyze the correlation between differentially expressed genes and the half-maximal inhibitory concentration(IC50) of anticancer drugs.
Results :
There were a total of 77 genes which had a different expression in resistance lung adenocarcinoma cells and lung adenocarcinoma cancer tissues. The functional enrichment analysis showed that these co-different expression genes were mainly enriched in microtubule, extracellular exosome, cell cycle and signaling by nuclear receptors. Protein-protein interactions(PPI) network screened 6 most connected genes as molecular complex(MCODE). Among the MCODE, overexpressed ubiquitin conjugating enzyme E2 T(UBE2T), kinesin family member 20A(KIF20A), PCNA clamp associated factor(KIAA0101), pituitary tumor-transforming gene 1(PTTG1) and NIMA related kinase 2(NEK2) were associated with poor outcomes. Survival analysis results showed that these five genes were upregulated in lung adenocarcinoma tissues and drug-resistant cells and were significantly associated with poor prognosis in lung adenocarcinoma patients. Drug sensitivity analysis results suggested that high expression of PTTG1 and UBE2T was significantly associated with sensitivity to multiple anticancer drugs, including paclitaxel and docetaxel. RT-PCR validation showed that PTTG1 andUBE2T were highly expressed in docetaxel-resistant cells A549-TXR and H358-TXR.
Conclusion
PTTG1 andUBE2T holds the potential to be chemoresistance markers in lung adenocarcinoma.
6.Relationship between early dialysis anemia status and prognosis in maintenance hemodialysis patients
Hui FANG ; Bin PAN ; Siyu CHEN ; Yongchun HE ; Lihui QU ; Qi GUO ; Jianghua CHEN ; Ping ZHANG
Chinese Journal of Nephrology 2024;40(2):85-93
Objective:To analyze the status of anemia at the beginning of dialysis in maintenance hemodialysis (MHD) adult patients, and to explore the relationship between early dialysis anemia and early survival and long-term survival.Methods:It was a retrospective cohort study. The baseline demographic and clinical data of newly admitted MHD patients from January 1, 2013 to December 31, 2020 were retrospectively analyzed. According to the hemoglobin (Hb) level at the beginning of dialysis, the patients were divided into high Hb group (Hb≥110 g/L), middle Hb group (80 g/L≤Hb<110 g/L) and low Hb group (Hb<80 g/L). The baseline data among the three groups were compared, and the changing trend of Hb level in MHD patients during the 8 years was analyzed. The follow-up ended at peritoneal dialysis, kidney transplantation, death or on December 31, 2021. All-cause death event within 6 months after the initiation of dialysis was defined as early death, while all-cause death event more than 6 months after the initiation of dialysis was defined as long-term death. Kaplan-Meier survival curve was used to analyze the survival rate, and log-rank test was used to compare the survival rates among the three groups. Multivariate Cox regression analysis model was used to analyze the association between anemia (Hb<110 g/L) at the beginning of dialysis and both early and long-term mortality.Results:A total of 36 216 MHD patients were included in this study, with age of (61.3±15.5) years old and 22 163 males (61.20%). The Hb at the beginning of dialysis was (89.33±20.89) g/L. The compliance rate of Hb (≥110 g/L) was 16.43% (5 952/36 216). There were 12 232 patients (33.78%), 18 032 patients (49.79%), and 5 952 patients (16.43%) in low Hb group, middle Hb group, and high Hb group, respectively. There were statistically significant differences in gender distribution, age, serum creatinine, blood phosphorus, blood calcium, C-reactive protein, intact parathyroid hormone, blood leukocytes, platelets, serum albumin, triglyceride, total cholesterol, and proportions of chronic glomerulonephritis, diabetic nephropathy, diabetes mellitus, cardiovascular and cerebrovascular diseases, tumors, emporary catheter, long-term catheter and autologous arteriovenous fistula among the three groups (all P<0.05). During the 8-year period, the Hb level had an increased trend steadily each year, and Hb was (88.48±22.07) g/L, (88.52±21.43) g/L, (87.86±21.29) g/L, (88.93±20.69) g/L, (88.87±20.69) g/L, (90.03±20.47) g/L, (90.74±20.31) g/L and (90.31±20.54) g/L year by year. There were 2 176 early deaths (6.01%), and 6 557 long-term deaths (18.10%) by the end of follow-up. Kaplan-Meier survival curve showed that early survival rate of low Hb group was significantly lower than those of high Hb group (log-rank test, χ2=57.115, P<0.001) and middle Hb group (log-rank test, χ2=49.918, P<0.001), and long-term survival rates of low Hb group (log-rank test, χ2=107.097, P<0.001) and middle Hb group (log-rank test, χ2=47.430, P<0.001) were significantly lower than that of high Hb group. Multivariate Cox regression analysis showed that Hb<80 g/L at the beginning of dialysis was an independent influencing factor of early death (Hb ≥110 g/L as a reference, HR=1.307, 95% CI 1.096-1.559), and 80 g/L≤Hb<110 g/L and Hb<80 g/L at the beginning of dialysis were the independent influencing factors of long-term death (Hb≥110 g/L as a reference, HR=1.108, 95% CI 1.021-1.203; HR=1.228, 95% CI 1.127-1.339, respectively) in MHD patients. Conclusions:The compliance rate of Hb at the beginning of dialysis in MHD patients is low. Hb <80 g/L at the beginning of dialysis is an independent risk factor of early death, and Hb <110 g/L at the beginning of dialysis is an independent risk factor of long-term death in MHD patients.
7.Expression and in vitro activity of a neutralizing antibody against West Nile virus that reduces antibody-dependent enhancement
Xiangjun HAO ; Nan CHEN ; Wanlu ZHU ; Jing WANG ; Guojiang CHEN ; Chunxia QIAO ; Xinying LI ; Beifen SHEN ; Jiannan FENG ; Lihui CHAI ; He XIAO
Chinese Journal of Microbiology and Immunology 2024;44(1):44-49
Objective:To establish an antibody expression system to reduce the antibody-dependent enhancement (ADE) effect of target antibody.Methods:Site-directed mutagenesis was used to mutate the 234 and 235 sites of the Fc region of the mammalian cell antibody expression vector-L234A and L235A to establish the antibody expression vector pFRT-IgG1κ-FcM. An antibody Wt-WNV with significant ADE effect obtained in previous work was selected and expressed by the pFRT-IgG1κ-FcM system to obtain mutant antibody FcM-WNV. The binding ability of FcM-WNV to target antigen West Nile virus envelope protein-DⅢ (WNV E-DⅢ) was detected by ELISA, and the its binding ability to human high-affinity IgG Fc receptor hFcγRⅠ (hCD64 ) was analyzed by flow cytometry. The neutralizing activity of FcM-WNV in vitro was detected by pseudovirus infection of host cells (BHK21 and K562). Results:The expression levels of FcM-WNV and Wt-WNV were comparable, and FcM-WNV could recognize and bind to WNVE-DIII in a concentration-dependent manner. Compared with Wt-WNV, the binding ability of FcM-WNV to hCD64 was significantly weakened, showing a significant decrease in fluorescence intensity. Consistent with the previous experimental results, Wt-WNV at a concentration of 5 μg/ml significantly enhanced the infection of K562 by WNV pseudovirus, while FcM-WNV at a concentration of 5 μg/ml could effectively block pseudovirus infection in both K562 and BHK21 cells.Conclusions:The established antibody expression system can effectively reduce the ADE effect of the target antibody.
8.Mechanism of Yantiao Fang regulating the Rho/ROCK signaling pathway in apoptosis of intestinal epithelial cells in mice with acute gastrointestinal injury caused by sepsis
Qian CHEN ; Di WANG ; Dingyi ZHANG ; Sailei JIA ; Lihui WANG ; Yujing CAO ; Xian LI ; Yanhong LI
Chinese Journal of Comparative Medicine 2024;34(2):16-24
Objective To investigate the effect of Yantiao Fang on apoptosis of intestinal epithelial cells in mice with acute gastrointestinal injury caused by sepsis by regulating the Rho/ROCK signaling pathway.Methods Seventy BALB/c mice were randomly divided into normal,sham,and model groups.Except for normal and sham groups,mice were subjected to cecal ligation and perforation to establish a mouse model of acute gastrointestinal injury caused by sepsis.The mouse models were randomly divided into model,Low,Medium,and High dose of Yantiao Fang,and ROCK inhibitor groups.Histopathological changes of the ileum were observed by HE staining.Serum levels of IL-1β,IL-6,TNF-α,and IL-10 were measured by ELISA.PCNA and Ki-67 expression was detected by immunohistochemistry.Cleaved caspase3 and Bax expression was detected by Western blot.ROCK and MLC mRNA expression in the ileum was measured by RT-qPCR.Results Compared with normal and sham groups,Chiu's pathological score,proinflammatory factor(IL-1β,IL-6,and TNF-α)levels,cleaved caspase3 and Bax protein expression,and ROCK and MLC mRNA levels were increased in the model group(P<0.05).Moreover,anti-inflammatory mediator IL-10 and expression of PCNA and Ki-67 in the ileum were decreased in the model group(P<0.05).Compared with the model group,histopathological changes of the ileum in all Yantiao Fang groups were improved by various degrees with the increase in dose.Chiu's pathological score,IL-1β,IL-6,and TNF-α serum levels,cleaved caspase3 and Bax protein expression,and ROCK and MLC mRNA levels were decreased in Yantian Fang groups(P<0.05).The IL-10 level and expression of PCNA and Ki-67 in the ileum were increased in Yantian Fang groups(P<0.05).Conclusions Yantiao Fang may inhibit apoptosis of intestinal epithelial cells in mice with acute gastrointestinal injury due to sepsis by regulating the Rho/ROCK signaling pathway,thereby alleviating intestinal tissue inflammation and ultimately preventing intestinal mucosal tissue injury.
9.Anxiety and depression in primary and middle school students quarantined in hotels during the COVID-19 epidemic
Min CHEN ; Lu TONG ; Guohua LI ; Yanhua YU ; Lihui GAO ; Yunhe ZHANG ; Zhanzhou YU ; Yanyan CHEN ; Xiaojie SUI ; Yinxia BAI
Chinese Mental Health Journal 2024;38(3):260-264
Objective:To investigate symptoms of anxiety and depression among primary and middle school students quarantined in hotels during the COVID-19 epidemic.Methods:Anxiety and depression symptoms among 726 primary and middle school students quarantined in hotels were investigated with The Screen for Child Anxiety Related Emotional Disorders(SCARED)and Depression Self-rating Scale for Children(DSRSC)from September to October 2022 in Chifeng City,Inner Mongolia Autonomous Region.There were 624 students completed investi-gation with response rate of 86%.The positive score of SCARED was ≥23 and DSRSC was ≥ 15.Results:The detection rates of anxiety and depression were 17.9%and 15.4%respectively.The detection rates of anxiety and depression were higherin middle school students than inprimary school students(Ps<0.05).The scores of general-ized anxiety and social phobia factors were higher in female students than in male students(Ps<0.05).The scores of dissociative anxiety factor and depression were higher in middle school students than in primary school students(Ps<0.05).Conclusion:During the COVID-19 epidemic,middle school students quarantined in hotels are more likely to have anxiety and depression symptoms than primary school students,and female students are more likely to have anxiety symptoms than male students.
10.Exploring the Protective Effect of Modified Taoren Chengqi Decoction on Ventilator-induced Lung Injury in Rats Based on the Nrf2/GPX4-ferroptosis Pathway
Zhixia SUN ; Lihui WANG ; Hongliang SUO ; Hua LI ; Qian CHEN
Traditional Chinese Drug Research & Clinical Pharmacology 2024;35(9):1281-1288
Objective To explore the protective effect of modified Taoren Chengqi Decoction on ventilator-induced lung injury(VILI)in rats based on the nuclear factor-erythroid 2-related factor 2(Nrf2)/glutathione peroxidase 4(GPX4)-ferroptosis pathway.Methods Rats were randomly separated into the control group,the model group,the modified Taoren Chengqi Decoction group,the ML385(Nrf2 inhibitor)group,and the modified Taoren Chengqi Decoction+ML385 group,with 12 rats in each group.The rats in control group underwent tracheal intubation and kept spontaneous breathing.The rats of other groups were subjected to mechanical ventilation for 4 hours.Seven days before mechanical ventilation,medication treatment was carried out once a day for seven days.After mechanical ventilation,ELISA was applied to detect the levels of tumor necrosis factor-α(TNF-α)and interleukin 6(IL-6)in bronchoalveolar lavage fluid(BALF).Lung wet/dry weight ratio and lung tissue pathology of rat were detected.The reagent kit was applied to detect the content of glutathione(GSH),malonaldehyde(MDA),and Fe2+in rat lung tissue.The relative fluorescence intensity of reactive oxygen species(ROS)and 4-hydroxynonenal(4-HNE)in lung tissue was detected by immunofluorescence staining.The mRNA and protein expressions of solute carrier family 7 member 11(SLC7A11),Nrf2,GPX4 were detected.Results Compared with the control group,the lung tissue of rats in model group was severely damaged,the levels of TNF-α and IL-6 in BALF increased,lung wet/dry weight ratio,content of MDA and Fe2+,and the relative fluorescence intensity of ROS and 4-HNE increased,but the content of GSH,the mRNA and protein expressions of Nrf2,SLC7A11,and GPX4 decreased(P<0.01).Compared with the model group,the pathological damage of lung tissue in the modified Taoren Chengqi Decoction group was improved,the levels of TNF-α and IL-6 in BALF decreased,lung wet/dry weight ratio,content of MDA and Fe2+,the relative fluorescence intensity of ROS and 4-HNE decreased,the content of GSH,the mRNA and protein expressions of Nrf2,SLC7A11,and GPX4 increased(P<0.01).However,an opposite trend for corresponding indicators in the ML385 group was found(P<0.01).The pathological injury of lung tissue was alleviated,the levels of TNF-α and IL-6 in BALF decreased,lung wet/dry weight ratio,content of MDA and Fe2+,and the relative fluorescence intensity of ROS and 4-HNE decreased,GSH content,the mRNA expression of Nrf2,SLC7A11 and GPX4,as well as the protein expression of Nrf2 and GPX4 increased in modified Taoren Chengqi Decoction+ML385 group(P<0.01,P<0.05).Compared with ML385 group,the pathological injury of lung tissue was alleviated,the levels of TNF-α and IL-6 in BALF decreased,lung wet/dry weight ratio,the content of MDA and Fe2+,and the relative fluorescence intensity of ROS and 4-HNE decreased,GSH content,the mRNA and protein expression of Nrf2,SLC7A11 and GPX4 increased in modified Taoren Chengqi Decoction+ML385 group(P<0.01).Compared with the modified Taoren Chengqi Decoction group,the pathological damage in lung tissue of rats was intensified,the levels of TNF-α and IL-6 in BALF increased,lung wet/dry weight ratio,the content of MDA and Fe2+,the relative fluorescence intensity of ROS and 4-HNE increased,the content of GSH,the mRNA and protein expressions of Nrf2,SLC7A11,and GPX4 decreased(P<0.01)in modified Taoren Chengqi Decoction+ML385 group.Conclusion Modified Taoren Chengqi Decoction may improve rat VILI by activating the Nrf2/GPX4 pathway to inhibit ferroptosis.


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