1.Inhibition of Epithelial-mesenchymal Transition Mechanism in Chronic Atrophic Gastritis Rats by Banxia Xiexintang via Regulating IL-17/ERK/C/EBPβ Signaling Pathway
Wenyu WU ; Xinyu ZENG ; Hao LI ; Weiqi SUN ; Jiahui REN ; Yang YU ; Tingting ZHOU ; Aili XU ; Wei WEI
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(4):1-10
ObjectiveThis study aimed to investigate the action mechanism by which Banxia Xiexintang (BXT) inhibits epithelial-mesenchymal transition (EMT) in chronic atrophic gastritis (CAG) rats by regulating the interleukin-17(IL-17)/extracellular regulated protein kinases(ERK)/CCAAT enhancer binding protein β(C/EBPβ)signaling pathway, thereby providing new theoretical evidence for the treatment of CAG with classic traditional Chinese medicine formulas. MethodsA CAG rat model was established by using the combined factor method. After successful modeling, the rats were randomly divided into the model group, low-, medium-, and high-dose groups (0.549, 1.098, 2.196 g·kg-1, respectively) of BXT, and the positive drug group (vitacoenzyme, 0.3 g·kg-1). A normal control group was also set up. After 8 weeks of intervention, the pathological changes of gastric tissue were evaluated. The enzyme-linked immunosorbent assay (ELISA) was used to detect the contents of IL-17, tumor necrosis factor-α (TNF-α), cyclooxygenase-2 (COX-2), and C/EBPβ in serum, as well as the contents of EMT markers in gastric mucosal tissue including E-cadherin, N-cadherin, and vimentin. The immunohistochemistry method was employed to determine the localization and protein expression levels of IL-17, p-ERK, and C/EBPβ in gastric mucosal tissue. Western blot was used to detect the protein expressions of C/EBPβ, ERK, and its phosphorylated form (p)-ERK in gastric mucosa. Real-time polymerase chain reaction (Real-time PCR) was applied to measure the mRNA expression levels of ERK, COX-2, and C/EBPβ in gastric mucosa. ResultsCompared with those in the normal control group, the rats in the model group showed gastric mucosal glandular atrophy and inflammatory cell infiltration. The protein and their related mRNA expressions of C/EBPβ, ERK, and p-ERK in gastric mucosa were significantly increased (P<0.05,P<0.01). The levels of IL-17, TNF-α, COX-2, and C/EBPβ in serum were significantly increased (P<0.01). The contents of N-cadherin and vimentin in gastric mucosal tissue were significantly increased, while the content of E-cadherin was significantly decreased (P<0.01). Compared with the model group, after intervention with different doses of BXT, the pathological damage of the gastric mucosa was improved to varying degrees. The protein and mRNA expressions of C/EBPβ, ERK, and p-ERK in gastric mucosa were significantly reduced (P<0.05,P<0.01). The levels of IL-17, TNF-α, COX-2, and C/EBP β in serum were significantly decreased (P<0.01). The contents of N-cadherin and vimentin in gastric mucosa tissue were decreased, while the content of E-cadherin was increased (P<0.05,P<0.01). ConclusionBXT can effectively improve the pathological damage of gastric mucosal tissue in CAG rats. Its action mechanism may be related to reducing the levels of IL-17 and TNF-α in serum, regulating the IL-17/ERK/C/EBPβ signaling pathway and inhibiting the EMT process.
2.Exploring Mechanism of Yiqi Huoxue Jiedu Formula in Alleviating Immune Cell Exhaustion in Sepsis Based on Transcriptomics and Metabolomics
Rui CHEN ; Qiusha PAN ; Kaiqiang ZHONG ; Shuqi MA ; Wei HUANG ; Jiahua LAI ; Ruifeng ZENG ; Xiaotu XI ; Jun LI
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(3):109-118
ObjectiveTo observe the effects of Yiqi Huoxue Jiedu formula(YHJF) on immune cell exhaustion in the spleen of septic mice and to explore and validate its potential intervention targets. MethodsMice were randomly divided into the sham-operated, model, low-dose YHJF(4.1 g·kg-1), and high-dose YHJF(8.2 g·kg-1) groups. Except for the sham-operated group, a cecal ligation and puncture(CLP) procedure was performed to establish a mouse sepsis model. The treatment groups received oral administration of the corresponding doses, while the sham-operated and model groups received an equal volume of physiological saline. After the intervention, the 7-day survival rate of each group was recorded, and spleen samples were collected 72 h post-intervention, and the spleen index was calculated. Terminal deoxynucleotidyl transferase deoxyuridine triphosphate(dUTP) nick end labeling(TUNEL) staining was used to detect apoptosis in spleen cells. Enzyme-linked immunosorbent assay(ELISA) was performed to measure the levels of interleukin(IL)-4 and IL-10 in the serum. Transcriptomics and metabolomics were used to screen for differentially expressed genes(DEGs) and differential metabolites in the spleen, followed by bioinformatics analysis to identify key targets. Real-time quantitative polymerase chain reaction(Real-time PCR), flow cytometry, and multiplex immunofluorescence were used to verify the expressions of key genes and proteins. ResultsThe high-dose YHJF group significantly improved the 7-day survival rate of septic mice(P0.05). Compared with the sham-operated group, the model group showed a significant increase in apoptosis of spleen cells and a decrease in the spleen index at 72 h post-modeling, with markedly elevated peripheral serum IL-4 and IL-10 levels(P0.01). Compared with the model group, the high-dose YHJF group showed a reduction in apoptosis of spleen cells, an increase in the spleen index, and a significant decrease in peripheral serum IL-4 and IL-10 levels(P0.05). Spleen transcriptomics identified 255 DEGs between groups, potentially serving as intervention targets for YHJF. Gene Ontology(GO) enrichment analysis revealed that DEGs were mainly involved in biological processes such as natural killer(NK) cell-mediated positive immune regulation, cell killing, cytokine production, positive regulation of innate immune cells, and interferon production. Kyoto Encyclopedia of Genes and Genomes(KEGG) pathway enrichment analysis showed that DEGs were mainly involved in cytokine-cytokine receptor interactions, viral protein interactions with cytokines and cytokine receptors, chemokine signaling pathway, and nuclear transcription factor-κB(NF-κB) signaling pathway. Protein-protein interaction(PPI) network analysis identified CD160, granzyme B(GZMB), and chemokine ligand 4(CCL4) as key targets for YHJF in treating sepsis. Metabolomics identified 46 differential metabolites that were significantly reversed by YHJF intervention, and combined transcriptomics and metabolomics analysis identified 17 differential metabolites closely related to CD160. Pathway enrichment revealed that these metabolites were mainly involved in glycerophospholipid metabolism, arachidonic acid metabolism, glycosylphosphatidylinositol(GPI) anchor biosynthesis, linoleic acid metabolism, and α-linolenic acid metabolism pathways. Verification results showed that, compared with the sham-operated group, the model group exhibited significantly elevated CD160 mRNA expression level in the spleen, along with markedly decreased CCL4 and GZMB mRNA expression, and had a significant increase in CD160 expression on the surface of natural killer T(NKT) cells in the spleen(P0.01). Compared with the model group, the high-dose YHJF group had a significant decrease in CD160 mRNA expression in the spleen, a significant increase in CCL4 and GZMB mRNA expressions. Further flow cytometry and immunofluorescence revealed that compared with the sham-operated group, CD160 expression on the surface of splenic NKT cells in the model group was significantly increased(P0.01), while high-dose YHJF intervention significantly reduced CD160 expression(P0.01). ConclusionYHJF may alleviate NKT cell exhaustion in sepsis by downregulating the expression of the negative co-stimulatory molecule CD160, and this regulatory effect is closely related to fatty acid metabolism pathways. This study provides new insights and targets for further exploration of strengthening vital Qi and detoxifying strategy to improve immune cell exhaustion in acute deficiency syndrome of sepsis.
3.Exploring Mechanism of Yiqi Huoxue Jiedu Formula in Alleviating Immune Cell Exhaustion in Sepsis Based on Transcriptomics and Metabolomics
Rui CHEN ; Qiusha PAN ; Kaiqiang ZHONG ; Shuqi MA ; Wei HUANG ; Jiahua LAI ; Ruifeng ZENG ; Xiaotu XI ; Jun LI
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(3):109-118
ObjectiveTo observe the effects of Yiqi Huoxue Jiedu formula(YHJF) on immune cell exhaustion in the spleen of septic mice and to explore and validate its potential intervention targets. MethodsMice were randomly divided into the sham-operated, model, low-dose YHJF(4.1 g·kg-1), and high-dose YHJF(8.2 g·kg-1) groups. Except for the sham-operated group, a cecal ligation and puncture(CLP) procedure was performed to establish a mouse sepsis model. The treatment groups received oral administration of the corresponding doses, while the sham-operated and model groups received an equal volume of physiological saline. After the intervention, the 7-day survival rate of each group was recorded, and spleen samples were collected 72 h post-intervention, and the spleen index was calculated. Terminal deoxynucleotidyl transferase deoxyuridine triphosphate(dUTP) nick end labeling(TUNEL) staining was used to detect apoptosis in spleen cells. Enzyme-linked immunosorbent assay(ELISA) was performed to measure the levels of interleukin(IL)-4 and IL-10 in the serum. Transcriptomics and metabolomics were used to screen for differentially expressed genes(DEGs) and differential metabolites in the spleen, followed by bioinformatics analysis to identify key targets. Real-time quantitative polymerase chain reaction(Real-time PCR), flow cytometry, and multiplex immunofluorescence were used to verify the expressions of key genes and proteins. ResultsThe high-dose YHJF group significantly improved the 7-day survival rate of septic mice(P0.05). Compared with the sham-operated group, the model group showed a significant increase in apoptosis of spleen cells and a decrease in the spleen index at 72 h post-modeling, with markedly elevated peripheral serum IL-4 and IL-10 levels(P0.01). Compared with the model group, the high-dose YHJF group showed a reduction in apoptosis of spleen cells, an increase in the spleen index, and a significant decrease in peripheral serum IL-4 and IL-10 levels(P0.05). Spleen transcriptomics identified 255 DEGs between groups, potentially serving as intervention targets for YHJF. Gene Ontology(GO) enrichment analysis revealed that DEGs were mainly involved in biological processes such as natural killer(NK) cell-mediated positive immune regulation, cell killing, cytokine production, positive regulation of innate immune cells, and interferon production. Kyoto Encyclopedia of Genes and Genomes(KEGG) pathway enrichment analysis showed that DEGs were mainly involved in cytokine-cytokine receptor interactions, viral protein interactions with cytokines and cytokine receptors, chemokine signaling pathway, and nuclear transcription factor-κB(NF-κB) signaling pathway. Protein-protein interaction(PPI) network analysis identified CD160, granzyme B(GZMB), and chemokine ligand 4(CCL4) as key targets for YHJF in treating sepsis. Metabolomics identified 46 differential metabolites that were significantly reversed by YHJF intervention, and combined transcriptomics and metabolomics analysis identified 17 differential metabolites closely related to CD160. Pathway enrichment revealed that these metabolites were mainly involved in glycerophospholipid metabolism, arachidonic acid metabolism, glycosylphosphatidylinositol(GPI) anchor biosynthesis, linoleic acid metabolism, and α-linolenic acid metabolism pathways. Verification results showed that, compared with the sham-operated group, the model group exhibited significantly elevated CD160 mRNA expression level in the spleen, along with markedly decreased CCL4 and GZMB mRNA expression, and had a significant increase in CD160 expression on the surface of natural killer T(NKT) cells in the spleen(P0.01). Compared with the model group, the high-dose YHJF group had a significant decrease in CD160 mRNA expression in the spleen, a significant increase in CCL4 and GZMB mRNA expressions. Further flow cytometry and immunofluorescence revealed that compared with the sham-operated group, CD160 expression on the surface of splenic NKT cells in the model group was significantly increased(P0.01), while high-dose YHJF intervention significantly reduced CD160 expression(P0.01). ConclusionYHJF may alleviate NKT cell exhaustion in sepsis by downregulating the expression of the negative co-stimulatory molecule CD160, and this regulatory effect is closely related to fatty acid metabolism pathways. This study provides new insights and targets for further exploration of strengthening vital Qi and detoxifying strategy to improve immune cell exhaustion in acute deficiency syndrome of sepsis.
4.Pathogenic Mechanisms of Spleen Deficiency-Phlegm Dampness in Obesity and Traditional Chinese Medicine Prevention and Treatment Strategies:from the Perspective of Immune Inflammation
Yumei LI ; Peng XU ; Xiaowan WANG ; Shudong CHEN ; Le YANG ; Lihua HUANG ; Chuang LI ; Qinchi HE ; Xiangxi ZENG ; Juanjuan WANG ; Wei MAO ; Ruimin TIAN
Journal of Traditional Chinese Medicine 2026;67(1):31-37
Based on spleen deficiency-phlegm dampness as the core pathogenesis of obesity, and integrating recent advances in modern medicine regarding the key role of immune inflammation in obesity, this paper proposes a multidimensional pathogenic network of "obesity-spleen deficiency-phlegm dampness-immune imbalance". Various traditional Chinese medicine (TCM) herbs that strengthen the spleen, regulate qi, and resolve phlegm and dampness can treat obesity by improving spleen-stomach transport and transformation, promoting water-damp metabolism, and regulating immune homeostasis. This highlights immune inflammation as an important entry point to elucidate the TCM concepts of "spleen deficiency-phlegm dampness" and the therapeutic principle of "strengthening the spleen and eliminating dampness to treat obesity". By systematically analyzing the intrinsic connection between "spleen deficiency generating dampness, internal accumulation of phlegm dampness" and immune dysregulation in obesity, this paper aims to provide theoretical support for TCM treatment of obesity based on dampness.
5.Survey of post-discharge exercise behavior and analysis of factors influencing exercise intensity in patients undergoing lung surgery
Hongyu ZENG ; Xiang WANG ; Tian ZHANG ; Yaqin WANG ; Xing WEI ; Zhen DAI ; Liping ZHANG ; Xiaoqin LIU ; Qiang LI ; Qiuling SHI ; Wei DAI ; Jia LIAO
Chinese Journal of Clinical Thoracic and Cardiovascular Surgery 2026;33(05):734-742
Objective To investigate the post-discharge exercise behavior and factors influencing moderate to vigorous intensity physical activity (MVPA) in patients undergoing lung surgery. Methods A total of 2874 patients from the large prospective, observational perioperative lung symptom study cohort (CN-PRO-Lung 3) in the Department of Thoracic Surgery at Sichuan Cancer Hospital between April 7, 2021, and January 31, 2024, were selected as the survey subjects. A survey was conducted using the Investigation of Exercise Behavior after Lung Surgery questionnaire and the International Physical Activity Questionnaire-Short Form (IPAQ-SF) among patients who underwent lung surgery. Binary logistic regression was used to analyze the factors influencing patients’ engagement in MVPA. Results A total of 702 patients were surveyed, including 252 males and 450 females, with an average age of (52.4±10.2) years. Patients with lung cancer accounted for 85.9%. Only 36.0% of the patients had regular exercise habits, while 42.3% did not engage in any physical activity. The three main barriers for postoperative exercise were physical discomfort (pain, coughing, shortness of breath, etc, 54.7%), lack of professional guidance (41.7%), and concerns about the surgical wound (28.9%). The proportions of patients engaging in vigorous, moderate, and low-intensity physical activity were 5.7%, 28.2%, and 66.1%, respectively. Multivariate analysis showed that patients with a personal annual income ≥50000 yuan (OR=1.52, 95%CI 1.01-2.29, P=0.044), high school education or above (OR=1.92, 95%CI 1.33-2.76, P<0.001), and lobectomy (OR=1.44, 95%CI 1.02-2.03, P=0.037) engaged in more MVPA. Conclusion Patients undergoing lung surgery have inadequate physical activity after discharge, particularly lacking in MVPA. Patients with higher income, higher educational levels, and lobectomy are more frequently engaged in MVPA. Measures such as symptom control, providing exercise guidance, and enhancing education on wound care may potentially improve the inadequate physical activity in lung surgery patients after discharge.
6.Effect of refractive status before small incision lenticule extraction surgery on postoperative accommodative function
Meiluo ZHANG ; Chunyu TIAN ; Qinghua YANG ; Liexi JIA ; Hongtao ZHANG ; Manmei LI ; Zhengqing DU ; Zhuo ZENG ; Xue WANG ; Wei ZHANG
International Eye Science 2025;25(2):323-327
AIM: To investigate the abnormal conditions and change patterns of accommodative facility in patients with different refractive states before and after small incision lenticule extraction(SMILE)surgery.METHODS:A prospective clinical cohort study was conducted. A total of 59 patients(118 eyes)who underwent SMILE surgery and had visual function files established in our hospital from June to December 2023 were randomly selected, including 37 males and 22 females, aged 18-35 years(with an average age of 25.19±5.65 years). According to the preoperative spherical equivalent(SE), they were divided into two groups: the low-to-moderate myopia group(SE≥-6.00 DS)with 40 patients(80 eyes), and the high myopia group(SE<-6.00 DS)with 19 patients(38 eyes). The monocular and binocular accommodative facility before surgery and at 1 wk and 1 mo after surgery were compared, and the changes in accommodative facility before and after SMILE surgery in the two groups of patients were analyzed.RESULTS:All surgeries were completed successfully. In the low-to-moderate myopia group, 33 cases(66 eyes)completed the 1-month follow-up after surgery, with a loss to follow-up rate of 17.5%(7/40). In the high myopia group, 15 patients(30 eyes)completed the 1-month follow-up after surgery, with a loss to follow-up rate of 21.1%(4/19). After SMILE surgery, the uncorrected visual acuity and SE of both low-to-moderate myopia and high myopia were significantly improved(all P<0.05). The accommodative facility of the right eyes in all the patients at 1 mo after surgery was better than that before surgery and at 1 wk after surgery(P=0.002, 0.006), the accommodative facility of the left eyes was significantly increased at 1 mo after surgery than that at 1 wk after surgery(P=0.005), and the binocular accommodative facility at 1 mo after surgery was significantly increased compared with that before surgery(P<0.017). Furthermore, there were statistical significance in accommodative facility of the right eyes in the low-to-moderate group at 1 mo compared with that before surgery and at 1 wk after surgery(P=0.011, 0.004); it was significantly increased in the left eyes at 1 mo after surgery compared with that at 1 wk after surgery(P=0.001), and binocular accommodative facility at 1 mo after surgery was significantly better than that before surgery(P<0.001). Furthermore, there was no statistical significance in the right, left and binocular accommodative facility of patients in the high myopia group(all P>0.017).CONCLUSION: After SMILE surgery, the monocular accommodative facility shows a transient decrease and then exceeds the preoperative level at 1 mo after surgery, and the binocular accommodative facility gradually improves after surgery. SMILE surgery has a positive impact on the monocular and binocular accommodative facility in patients with low-to-moderate myopia, but has no significant impact on the accommodative facility in patients with high myopia. It is of clinical significance to strengthen the detection of monocular and binocular accommodative facility before and after SMILE surgery.
7.Panax notoginseng saponins regulate differential miRNA expression in osteoclast exosomes and inhibit ferroptosis in osteoblasts
Hongcheng TAO ; Ping ZENG ; Jinfu LIU ; Zhao TIAN ; Qiang DING ; Chaohui LI ; Jianjie WEI ; Hao LI
Chinese Journal of Tissue Engineering Research 2025;29(19):4011-4021
BACKGROUND:Steroid-induced femoral head necrosis is mostly caused by long-term and extensive use of hormones,but its specific pathogenesis is not yet clear and needs further study. OBJECTIVE:To screen out the differential miRNAs in osteoclast exosomes after the intervention of Panax notoginseng saponins,and on this basis,to further construct an osteogenic-related ferroptosis regulatory network to explore the potential mechanism and research direction of steroid-induced osteonecrosis of the femoral head. METHODS:MTT assay was used to detect the toxic effects of different concentrations of dexamethasone and different mass concentrations of Panax notoginseng saponins on Raw264.7 cell line.Tartrate resistant acid phosphatase staining and TUNEL assay were used to detect the effects of Panax notoginseng saponins on osteoclast inhibition and apoptosis.Exosomes were extracted from cultured osteoclasts with Panax notoginseng saponins intervention.Exosomes from different groups were sequenced to identify differentially expressed miRNAs.CytoScape 3.9.1 was used to construct and visualize the regulatory network between differentially expressed miRNAs and mRNAs.Candidate mRNAs were screened by GO analysis and KEGG analysis.Finally,the differential genes related to ferroptosis were screened out,and the regulatory network of ferroptosis-related genes was constructed. RESULTS AND CONCLUSION:(1)The concentration of dexamethasone(0.1 μmol/L)and Panax notoginseng saponins(1 736.85 μg/mL)suitable for intervention of Raw264.7 cells was determined by MTT assay.(2)Panax notoginseng saponins had an inhibitory effect on osteoclasts and could promote their apoptosis.(3)Totally 20 differentially expressed miRNAs were identified from osteoclast-derived exosome samples,and 11 differentially expressed miRNAs related to osteogenesis were predicted by target mRNAs.The regulatory networks of 4 up-regulated differentially expressed miRNAs corresponding to 155 down-regulated candidate mRNAs and 7 down-regulated differentially expressed miRNAs corresponding to 238 up-regulated candidate mRNAs were constructed.(4)Twenty-four genes related to ferroptosis were screened out from the differential genes.Finally,12 networks were constructed(miR-98-5p/PTGS2,miR-23b-3p/PTGS2,miR-425-5p/TFRC,miR-133a-3p/TFRC,miR-185-5p/TFRC,miR-23b-3p/NFE2L2,miR-23b-3p/LAMP2,miR-98-5p/LAMP2,miR-182-5p/LAMP2,miR-182-5p/TLR4,miR-23b-3p/ZFP36,and miR-182-5p/ZFP36).These results indicate that Panax notoginseng saponins may regulate osteoblast ferroptosis by regulating the expression of miRNAs derived from osteoclast exosomes,thus providing a new idea for the study of the mechanism of steroid-induced femoral head necrosis.
8.Deep learning model based on fundus images for detection of coronary artery disease with mild cognitive impairment
Yi YE ; Wei FENG ; Yao-dong DING ; Qing CHEN ; Yang ZHANG ; Li LIN ; Tong MA ; Bin WANG ; Xian-gang CHANG ; Zong-yuan GE ; Xiao-yi WANG ; Long-jun CAI ; Yong ZENG
Chinese Journal of Interventional Cardiology 2025;33(6):303-311
Objective To develop a deep learning model based on fundus retinal images to improve the detection rate of mild cognitive impairment(MCI)in patients with coronary heart disease,achieve early intervention and improve prognosis.Methods The study was a single-center cross-sectional study that retrospectively included patients diagnosed with coronary heart disease(CHD)by coronary angiography(≥50% stenosis of at least one coronary vessel)from Beijing Anzhen Hospital between November 2021 and December 2022.The whole data set was randomly divided into the training set and the testing set according to the ratio of 8∶2 for model development.After that,the patient data of the same center from January 2023 to April 2023 were included in the time verification method to verify the model.The diagnostic criteria for MCI were MMSE<27 or MoCA<26.Four kinds of convolutional neural network(CNN)architectures were used to train fundus images,and a comprehensive vision model of MCI detection was established through model integration.The area under the curve(AUC),sensitivity and specificity of the receiver operating curve(ROC)were used to evaluate the performance of the AI model.Results We collected 5 880 eligible fundus images from 3 368 CHD patients.Based on the results of the MMSE scale,the algorithm was labeled,including 2 898 males and 527 MCI patients.The AUC of the deep learning model in the test group is 0.733(95%CI 0.688-0.778),and the sensitivity of the algorithm in the test group is 0.577(95%CI 0.528-0.625)by using the operating point with the maximum sum of sensitivity and specificity.With a specificity of 0.758(95%CI 0.714-0.802),corresponding to a validated AUC of 0.710(95%CI 0.601-0.818).Based on the results of the MoCA scale,the algorithm labels 2 437 males and 1 626 MCI patients.The AUC of the deep learning model in the test group was 0.702(95%CI 0.671-0.733).The operating point with the maximum sum of sensitivity and specificity was selected,and the sensitivity of the algorithm was 0.749(95%CI 0.719-0.778)and the specificity was 0.561(95%CI 0.527-0.595),corresponding to the AUC value of the verification group was 0.674(95%CI 0.622-0.726).Conclusions The deep learning algorithm model based on fundus images has good diagnostic performance,and may be used as a new non-invasive,convenient and rapid screening method for MCI in CHD population.
9.Pharmaceutical practice in the treatment of one case of ventilator-associated pneumonia caused by extensively drug-resistant Klebsiella pneumoniae
Minglu YUAN ; Wei ZENG ; Genzhu WANG ; Xiaoying WANG ; Zhongdong LI
Chinese Journal of Pharmacoepidemiology 2025;34(6):708-714
This article reports a postcraniotomy patient with renal insufficiency and electrolyte imbalance who developed ventilator-associated pneumonia caused by extensively drug-resistant Klebsiella pneumoniae.According to the patient's pathophysiological characteristics,bacterial epidemiological characteristics,and bacterial culture results,combined with the latest guidelines and the pharmacokinetic/pharmacodynamic characteristics of antibiotics,a full-dose ceftazidime/avibactam regimen was initially suggested by the clinical pharmacist,and which was adopted by doctor.When the effect of ceftazidime/avibactam was poor and no guideline-recommended alternatives were available,the clinical pharmacist,in conjunction with clinical experience,proposed a combination therapy of colistin sulfate and tigecycline,with the implementation of adverse reaction monitoring and mucin sulfate blood concentration monitoring.Finally,the pneumonia was effectively controlled,the inflammatory indicators such as temperature and the white blood cell count returned to normal,no adverse drug reactions occurred,and the patient was successfully transferred to the rehabilitation institution.Clinical pharmacists stay updated on the latest medication knowledge both domestically and internationally,recommend advanced drug treatment protocols for clinical practice,assist in managing severe infections,and play an important role in the clinical team.
10.Diagnostic value of a combined clinical-radiomics model based on MRI for the assessment of renal fibrosis in chronic kidney disease
Chaogang WEI ; Ying ZENG ; Qing MA ; Zhicheng JIN ; Yilin XU ; Ye ZHU ; Xiaojing LI ; Junkang SHEN ; Zhen JIANG
Chinese Journal of Radiology 2025;59(10):1163-1169
Objective:To explore the diagnostic value of a clinical-radiomics model based on the T 1 mapping and apparent diffusion coefficient (ADC)-based radiomics, and the clinical indicator for renal fibrosis (RF) caused by chronic kidney disease (CKD). Methods:This cross-sectional study prospectively and consecutively enrolled 122 patients with CKD at the Second Affiliated Hospital of Soochow University from September 2021 to December 2023 who were randomly allocated to a training set ( n=85) or a validation set ( n=37) in an approximate 7∶3 ratio using simple random sampling. Patients underwent T 1 mapping and diffusion-weighted imaging scans. Renal biopsy was performed within 3 days after the MRI scans. Patients were categorized into three groups based on the degree of RF: no RF ( n=25), mild RF ( n=55), and moderate to severe RF ( n=42). To differentiate the presence of RF (no RF vs. any RF) and the severity of RF (mild RF vs. moderate to severe RF), univariate and multivariate logistic regression were used to optimize the independent clinical predictor, which constituted the clinical model. Radiomics features were extracted from regions of interest delineated within the renal parenchyma of the right kidney on T 1 mapping and ADC maps. Features were selected using least absolute shrinkage and selection operator regression to build the radiomics model. A clinical-radiomics model was subsequently constructed by integrating the independent clinical predictors with the selected radiomics features. Model diagnostic performance was evaluated using the area under the receiver operating characteristic curve (AUC). Calibration curve was plotted to assess model calibration, and decision curve analysis was performed to evaluate clinical net benefit. Results:Univariate logistic regression analysis revealed that estimated glomerular filtration rate (eGFR), serum creatinine, and blood urea nitrogen exhibited statistically significant differences ( P0.05) in distinguishing both the presence and severity of RF. Multivariate analysis identified eGFR as an independent clinical predictor for both the presence of RF ( OR=0.939, 95% CI 0.898-0.982, P=0.006) and RF severity ( OR=0.956, 95% CI 0.917-0.997, P=0.037). From the MRI images, 7 radiomics features were selected to build the radiomics model for distinguishing the presence of RF, and 8 features were selected for the model assessing RF severity. These radiomics models were then combined with eGFR to construct the clinical-radiomics models. The clinical-radiomics models demonstrated the highest diagnostic performance, with an AUC of 0.935 (95% CI 0.859-0.977) for RF presence and 0.967 (95% CI 0.891-0.995) for RF severity in the training set, and 0.914 (95% CI 0.774-0.981) and 0.908 (95% CI 0.748-0.981) in the validation set. Calibration curves and decision curve analysis confirmed that the clinical-radiomics models exhibited excellent calibration and provided the highest clinical net benefit for assessing RF in CKD patients. Conclusion:The clinical-radiomics model integrating T 1 mapping and ADC-based radiomics and eGFR can effectively improve the diagnostic performance for RF in CKD patients.

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