1.Network meta-analysis of non-invasive brain stimulation in the treatment of lower limb motor dysfunction after stroke
Yuanyuan YANG ; Shanshan ZHOU ; Xiaofei CHENG ; Luye FENG ; Jiqin TANG
Chinese Journal of Tissue Engineering Research 2026;30(4):1008-1018
OBJECTIVE:Most of the existing studies are based on traditional Meta-analysis to study the efficacy of single stimulation protocols such as repetitive transcranial magnetic stimulation and transcranial direct current stimulation on lower limb motor dysfunction in stroke patients,and it is not possible to clarify which stimulation protocol is the optimal choice.This study used network meta-analysis to systematically evaluate the clinical efficacy of different regimens of non-invasive brain stimulation in the treatment of lower limb motor dysfunction after stroke.METHODS:CNKI,WanFang,VIP,CBM,PubMed,Medline and Web of Science databases were searched to collect randomized controlled trials on different regimens of non-invasive brain stimulation for lower limb motor dysfunction after stroke from inception to October 1,2024.Data extraction was performed on the included studies.RevMan 5.4.1 software was used for traditional meta-analysis and the quality of the included studies was evaluated.Stata 17.0 software was used for network meta-analysis.RESULTS:(1)A total of 39 studies involving 2 920 patients were included,involving 6 treatment methods:conventional rehabilitation training,high-frequency repetitive transcranial magnetic stimulation,low-frequency repetitive transcranial magnetic stimulation,intermittent theta burst stimulation,continuous theta burst stimulation,and transcranial direct current stimulation.(2)The results of network meta-analysis showed that high-frequency repetitive transcranial magnetic stimulation,low-frequency repetitive transcranial magnetic stimulation,intermittent theta burst stimulation,and transcranial direct current stimulation were superior to conventional rehabilitation training in the Fugl-Meyer assessment for lower extremity motor function.(3)In terms of improving Berg balance scale score,high-frequency repetitive transcranial magnetic stimulation,low-frequency repetitive transcranial magnetic stimulation,and intermittent theta burst stimulation were significantly different from conventional rehabilitation training(P<0.05),and there was a significant difference between high-frequency repetitive transcranial magnetic stimulation and intermittent theta burst stimulation(P<0.05).(4)In improving modified Barthel index and Barthel index,high-frequency repetitive transcranial magnetic stimulation,low-frequency repetitive transcranial magnetic stimulation,intermittent theta burst stimulation,and transcranial direct current stimulation were superior to conventional rehabilitation training.(5)Under the cumulative ranking chart,high-frequency repetitive transcranial magnetic stimulation showed the best efficacy in Fugl-Meyer assessment for lower extremity motor function,Berg balance scale score,modified Barthel index and Barthel index,followed by low-frequency repetitive transcranial magnetic stimulation.CONCLUSION:Both high-and low-frequency repetitive transcranial magnetic stimulation can improve the lower limb motor function and balance function of patients with stroke,and can improve the activities of daily living of patients to varying degrees.Moreover,the effect of high-frequency repetitive transcranial magnetic stimulation is better than that of low-frequency repetitive transcranial magnetic stimulation.
2.Network meta-analysis of non-invasive brain stimulation in the treatment of lower limb motor dysfunction after stroke
Yuanyuan YANG ; Shanshan ZHOU ; Xiaofei CHENG ; Luye FENG ; Jiqin TANG
Chinese Journal of Tissue Engineering Research 2026;30(4):1008-1018
OBJECTIVE:Most of the existing studies are based on traditional Meta-analysis to study the efficacy of single stimulation protocols such as repetitive transcranial magnetic stimulation and transcranial direct current stimulation on lower limb motor dysfunction in stroke patients,and it is not possible to clarify which stimulation protocol is the optimal choice.This study used network meta-analysis to systematically evaluate the clinical efficacy of different regimens of non-invasive brain stimulation in the treatment of lower limb motor dysfunction after stroke.METHODS:CNKI,WanFang,VIP,CBM,PubMed,Medline and Web of Science databases were searched to collect randomized controlled trials on different regimens of non-invasive brain stimulation for lower limb motor dysfunction after stroke from inception to October 1,2024.Data extraction was performed on the included studies.RevMan 5.4.1 software was used for traditional meta-analysis and the quality of the included studies was evaluated.Stata 17.0 software was used for network meta-analysis.RESULTS:(1)A total of 39 studies involving 2 920 patients were included,involving 6 treatment methods:conventional rehabilitation training,high-frequency repetitive transcranial magnetic stimulation,low-frequency repetitive transcranial magnetic stimulation,intermittent theta burst stimulation,continuous theta burst stimulation,and transcranial direct current stimulation.(2)The results of network meta-analysis showed that high-frequency repetitive transcranial magnetic stimulation,low-frequency repetitive transcranial magnetic stimulation,intermittent theta burst stimulation,and transcranial direct current stimulation were superior to conventional rehabilitation training in the Fugl-Meyer assessment for lower extremity motor function.(3)In terms of improving Berg balance scale score,high-frequency repetitive transcranial magnetic stimulation,low-frequency repetitive transcranial magnetic stimulation,and intermittent theta burst stimulation were significantly different from conventional rehabilitation training(P<0.05),and there was a significant difference between high-frequency repetitive transcranial magnetic stimulation and intermittent theta burst stimulation(P<0.05).(4)In improving modified Barthel index and Barthel index,high-frequency repetitive transcranial magnetic stimulation,low-frequency repetitive transcranial magnetic stimulation,intermittent theta burst stimulation,and transcranial direct current stimulation were superior to conventional rehabilitation training.(5)Under the cumulative ranking chart,high-frequency repetitive transcranial magnetic stimulation showed the best efficacy in Fugl-Meyer assessment for lower extremity motor function,Berg balance scale score,modified Barthel index and Barthel index,followed by low-frequency repetitive transcranial magnetic stimulation.CONCLUSION:Both high-and low-frequency repetitive transcranial magnetic stimulation can improve the lower limb motor function and balance function of patients with stroke,and can improve the activities of daily living of patients to varying degrees.Moreover,the effect of high-frequency repetitive transcranial magnetic stimulation is better than that of low-frequency repetitive transcranial magnetic stimulation.
3.Comparison of efficacy and safety of mizoribine and mycophenolate mofetil in kidney transplant recipients: a single-center retrospective study
Xinji YANG ; Weilong SHI ; Zaiwei SONG ; Zhifei XIE ; Herong ZHU ; Wenbin ZHANG ; Hongxian ZHANG ; Lei LIU ; Lei ZHAO ; Lu WANG ; Zhidan WANG ; Shudong ZHANG ; Qiming ZHANG ; Xiaofei HOU
Organ Transplantation 2026;17(4):625-634
Objective To compare the clinical efficacy and safety differences between the triple immunosuppressive regimen of mizoribine (MZR) or mycophenolate mofetil (MMF) combined with tacrolimus (Tac) and glucocorticoids of kidney transplant recipients in one year after transplantation. Methods A single-center retrospective cohort study design was adopted. The clinical data of 156 patients who underwent the first allogeneic kidney transplantation at the Third Hospital of Peking University from January 2022 to December 2024 were included. The patients were divided into the MZR group (78 cases) and the MMF group (78 cases) based on the initial immunosuppressive regimen after transplantation. The baseline data, medication use in one year after transplantation, blood routine indicators, adverse events and clinical outcomes were compared between the two groups. For the repeated-measurement longitudinal data, repeated-measurement analysis of variance was used to evaluate the main effects of the groups, time and their interaction effects. Results At the primary efficacy endpoint, there were no statistically significant differences in the one-year survival rate, graft survival rate and incidence of acute rejection between the two groups (all P > 0.05). In terms of medication patterns and laboratory test indicators, there were significant time main effects and "time × group" interaction effects for Tac dosage (all P < 0.05). The Tac dosage in the MZR group was lower than that in the MMF group from 2 to 3 months after transplantation, and it was higher in the MZR group than in the MMF group from 7 to 12 months and one year after transplantation. White blood cell count in the MZR group was higher at one month after transplantation, and the platelet count was higher one year after transplantation (all P < 0.05). In terms of infection, the incidence of novel coronavirus and Pneumocystis jirovecii pneumonia infections in the MZR group was lower (all P < 0.05). In terms of metabolic indicators, the post-transplantation uric acid level was better in the MZR group than in the MMF group, but the total cholesterol level was higher one year after transplantation (all P < 0.05). In terms of liver function, there was a brief and mild increase in transaminase in the early stage after transplantation in the MZR group. Conclusions During the one-year follow-up after transplantation, both the MZR and MMF regimens demonstrate comparable immunosuppressive efficacy and overall safety in Chinese kidney transplant recipients. The MZR regimen shows clear advantages in reducing specific infection risks, alleviating bone marrow suppression and improving uric acid metabolism, but its potential impact on blood lipids needs to be monitored. Therefore, the MZR regimen may be an effective and safe alternative immunosuppressive option for kidney transplant recipients, especially those with high infection risk, poor hematological tolerance, or comorbid hyperuricemia.
4.A practice guideline for therapeutic drug monitoring of mycophenolic acid for solid organ transplants.
Shuang LIU ; Hongsheng CHEN ; Zaiwei SONG ; Qi GUO ; Xianglin ZHANG ; Bingyi SHI ; Suodi ZHAI ; Lingli ZHANG ; Liyan MIAO ; Liyan CUI ; Xiao CHEN ; Yalin DONG ; Weihong GE ; Xiaofei HOU ; Ling JIANG ; Long LIU ; Lihong LIU ; Maobai LIU ; Tao LIN ; Xiaoyang LU ; Lulin MA ; Changxi WANG ; Jianyong WU ; Wei WANG ; Zhuo WANG ; Ting XU ; Wujun XUE ; Bikui ZHANG ; Guanren ZHAO ; Jun ZHANG ; Limei ZHAO ; Qingchun ZHAO ; Xiaojian ZHANG ; Yi ZHANG ; Yu ZHANG ; Rongsheng ZHAO
Journal of Zhejiang University. Science. B 2025;26(9):897-914
Mycophenolic acid (MPA), the active moiety of both mycophenolate mofetil (MMF) and enteric-coated mycophenolate sodium (EC-MPS), serves as a primary immunosuppressant for maintaining solid organ transplants. Therapeutic drug monitoring (TDM) enhances treatment outcomes through tailored approaches. This study aimed to develop an evidence-based guideline for MPA TDM, facilitating its rational application in clinical settings. The guideline plan was drawn from the Institute of Medicine and World Health Organization (WHO) guidelines. Using the Delphi method, clinical questions and outcome indicators were generated. Systematic reviews, Grading of Recommendations Assessment, Development, and Evaluation (GRADE) evidence quality evaluations, expert opinions, and patient values guided evidence-based suggestions for the guideline. External reviews further refined the recommendations. The guideline for the TDM of MPA (IPGRP-2020CN099) consists of four sections and 16 recommendations encompassing target populations, monitoring strategies, dosage regimens, and influencing factors. High-risk populations, timing of TDM, area under the curve (AUC) versus trough concentration (C0), target concentration ranges, monitoring frequency, and analytical methods are addressed. Formulation-specific recommendations, initial dosage regimens, populations with unique considerations, pharmacokinetic-informed dosing, body weight factors, pharmacogenetics, and drug-drug interactions are covered. The evidence-based guideline offers a comprehensive recommendation for solid organ transplant recipients undergoing MPA therapy, promoting standardization of MPA TDM, and enhancing treatment efficacy and safety.
Mycophenolic Acid/administration & dosage*
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Drug Monitoring/methods*
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Humans
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Organ Transplantation
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Immunosuppressive Agents/administration & dosage*
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Delphi Technique
5.A preclinical and first-in-human study of superstable homogeneous radiolipiodol for revolutionizing interventional diagnosis and treatment of hepatocellular carcinoma.
Hu CHEN ; Yongfu XIONG ; Minglei TENG ; Yesen LI ; Deliang ZHANG ; Yongjun REN ; Zheng LI ; Hui LIU ; Xiaofei WEN ; Zhenjie LI ; Yang ZHANG ; Syed Faheem ASKARI RIZVI ; Rongqiang ZHUANG ; Jinxiong HUANG ; Suping LI ; Jingsong MAO ; Hongwei CHENG ; Gang LIU
Acta Pharmaceutica Sinica B 2025;15(10):5022-5035
Transarterial radioembolization (TARE) is a widely utilized therapeutic approach for hepatocellular carcinoma (HCC), however, the clinical implementation is constrained by the stringent preparation conditions of radioembolization agents. Herein, we incorporated the superstable homogeneous iodinated formulation technology (SHIFT), simultaneously utilizing an enhanced solvent form in a carbon dioxide supercritical fluid environment, to encapsulate radionuclides (such as 131I,177Lu, or 18F) with lipiodol for the preparation of radiolipiodol. The resulting radiolipiodol exhibited exceptional stability and ultra-high labeling efficiency (≥99%) and displayed notable intratumoral radionuclide retention and in vivo stability more than 2 weeks following locoregional injection in subcutaneous tumors in mice and orthotopic liver tumors in rats and rabbits. Given these encouraging findings, 18F was authorized as a radiotracer in radiolipiodol for clinical trials in HCC patients, and showed a favorable tumor accumulation, with a tumor-to-liver uptake ratio of ≥50 and minimal radionuclide leakage, confirming the feasibility of SHIFT for TARE applications. In the context of transforming from preclinical to clinical screening, the preparation of radiolipiodol by SHIFT represents an innovative physical strategy for radionuclide encapsulation. Hence, this work offers a reliable and efficient approach for TARE in HCC, showing considerable promise for clinical application (ChiCTR2400087731).
6.A novel feedback loop: CELF1/circ-CELF1/BRPF3/KAT7 in cardiac fibrosis.
Yuan JIANG ; Bowen ZHANG ; Bo ZHANG ; Xinhua SONG ; Xiangyu WANG ; Wei ZENG ; Liyang ZUO ; Xinqi LIU ; Zheng DONG ; Wenzheng CHENG ; Yang QIAO ; Saidi JIN ; Dongni JI ; Xiaofei GUO ; Rong ZHANG ; Xieyang GONG ; Lihua SUN ; Lina XUAN ; Berezhnova Tatjana ALEXANDROVNA ; Xiaoxiang GUAN ; Mingyu ZHANG ; Baofeng YANG ; Chaoqian XU
Acta Pharmaceutica Sinica B 2025;15(10):5192-5211
Cardiac fibrosis is characterized by an elevated amount of extracellular matrix (ECM) within the heart. However, the persistence of cardiac fibrosis ultimately diminishes contractility and precipitates cardiac dysfunction. Circular RNAs (circRNAs) are emerging as important regulators of cardiac fibrosis. Here, we elucidate the functional role of a specific circular RNA CELF1 in cardiac fibrosis and delineate a novel feedback loop mechanism. Functionally, circ-CELF1 was involved in enhancing fibrosis-related markers' expression and promoting the proliferation of cardiac fibroblasts (CFs), thereby exacerbating cardiac fibrosis. Mechanistically, circ-CELF1 reduced the ubiquitination-degradation rate of BRPF3, leading to an elevation of BRPF3 protein levels. Additionally, BRPF3 acted as a modular scaffold for the recruitment of histone acetyltransferase KAT7 to facilitate the induction of H3K14 acetylation within the promoters of the Celf1 gene. Thus, the transcription of Celf1 was dramatically activated, thereby inhibiting the subsequent response of their downstream target gene Smad7 expression to promote cardiac fibrosis. Moreover, Celf1 further promoted Celf1 pre-mRNA transcription and back-splicing, thereby establishing a feedback loop for circ-CELF1 production. Consequently, a novel feedback loop involving CELF1/circ-CELF1/BRPF3/KAT7 was established, suggesting that circ-CELF1 may serve as a potential novel therapeutic target for cardiac fibrosis.
7.Identification and biomimetic synthesis of iphionanes and cyperanes from Artemisia hedinii and their anti-hepatic fibrosis activity.
Xiaofei LIU ; Xing WANG ; Chunping TANG ; Changqiang KE ; Bintao HU ; Sheng YAO ; Yang YE
Chinese Journal of Natural Medicines (English Ed.) 2025;23(7):871-880
Two novel skeleton sesquiterpenoids (1 and 6), along with four new iphionane-type sesquiterpenes (2-5) and six new cyperane-type sesquiterpenes (7-11), were isolated from the whole plant of Artemisia hedinii (A. hedinii). The two novel skeleton compounds (1 and 6) were derived from the decarbonization of iphionane and cyperane-type sesquiterpenes, respectively. Their structures were elucidated through a comprehensive analysis of spectroscopic data, including high-resolution electrospray ionization mass spectrometry (HR-ESI-MS) and 1D and 2D nuclear magnetic resonance (NMR) spectra. The absolute configurations were determined using electronic circular dichroism (ECD) spectra, single-crystal X-ray crystallographic analyses, time-dependent density functional theory (TDDFT) ECD calculation, density functional theory (DFT) NMR calculations, and biomimetic syntheses. The biomimetic syntheses of the two novel skeletons (1 and 6) were inspired by potential biogenetic pathways, utilizing a predominant eudesmane-type sesquiterpene (A) in A. hedinii as the substrate. All compounds were evaluated in LX-2 cells for their anti-hepatic fibrosis activity. Compounds 2, 8, and 10 exhibited significant activity in downregulating the expression of α-smooth muscle actin (α-SMA), a protein involved in hepatic fibrosis.
Artemisia/chemistry*
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Sesquiterpenes/chemical synthesis*
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Molecular Structure
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Humans
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Liver Cirrhosis/genetics*
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Biomimetics
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Plant Extracts/pharmacology*
8.Construction and validation of a novel prognostic risk scoring table for patients with acute-on-chronic liver failure
Zhanhu BI ; Haifeng HU ; Hong DU ; Linxu WANG ; Xiaofei YANG ; Yidi DING ; Jianqi LIAN
Journal of Clinical Hepatology 2025;41(10):2102-2109
ObjectiveTo investigate the clinical features of patients with acute-on-chronic liver failure (ACLF), and to construct a risk scoring table that can accurately predict the prognosis of patients in the early stage. MethodsA retrospective analysis was performed for the clinical data of 502 patients with ACLF who were admitted to Tangdu Hospital, Air Force Medical University, from January 1, 2010 to December 31, 2020 (training set), and the influencing factors for 28-day mortality rate were identified. The 69 ACLF patients who were admitted to Tangdu Hospital, Air Force Medical University, from January 1 to December 31, 2021 were enrolled as the validation set. The independent-samples t test or the Mann-Whitney U test was used for comparison of continuous data between two groups, and the chi-square test or the Fisher’s exact test was used for comparison of categorical data between two groups. A univariate Cox regression analysis was used to obtain the early warning indicators associated with the 28-day prognosis of ACLF patients, and variance inflation factors were used to assess multicollinearity among predictors; a multivariate Cox regression analysis was used to construct a risk model for ACLF prognosis (mortality). A risk scoring table for ACLF prognosis (mortality) was developed based on regression coefficients (β) from the model equation and weight assignments in the nomogram. Internal validation and comparison were performed for the risk model for ACLF prognosis (mortality), the scoring table for ACLF prognosis (mortality), and other scoring models (Child-Turcotte-Pugh [CTP] score, Model for End-Stage Liver Disease [MELD] score, MELD combined with serum sodium concentration [MELD-Na] score, and integrated MELD [iMELD] score) in the training set, while external validation and comprehensive evaluation of the scoring table and the other scoring models were performed in the validation set. The Nagelkerke’s R2 test and the Hosmer-Lemeshow test were used to assess the degree of fitting of the risk model for ACLF prognosis (mortality), the scoring table for ACLF prognosis (mortality), and other scoring models, and fitting curves were plotted. C-index was used to assess the discriminatory ability of the scoring table for ACLF prognosis (mortality) and the other scoring models, and the Z-test was used for comparison of C-index between different models. The decision curve analysis was used to compare the clinical benefits of the scoring table for ACLF prognosis (mortality) and the other scoring models. ResultsThe multivariate Cox regression analysis showed that age (hazard ratio [HR]=1.027, 95% confidence interval [CI]: 1.015 — 1.039, P<0.001), hepatic encephalopathy grade (grade 1: HR=2.928, 95%CI: 1.463 — 5.858, P=0.002; grade 2: HR=3.811, 95%CI: 2.078 — 6.988, P<0.001; grade 3: HR=3.916, 95%CI: 1.917 — 8.001, P<0.001; grade 4: HR=6.966, 95%CI: 4.559 — 10.644, P<0.001), an increase in total bilirubin (TBil) by ≥17.1 μmol/L per day (HR=1.771, 95%CI: 1.248 — 2.513, P=0.001), creatinine (HR=1.005, 95%CI: 1.004 — 1.006, P<0.001), neutrophil count (HR=1.092, 95%CI: 1.060 — 1.126, P<0.001), and international normalized ratio (HR=1.298, 95%CI: 1.187 — 1.418, P<0.001) were independent risk factors associated with the 28-day mortality rate of ACLF patients, and a risk scoring table was constructed for ACLF prognosis (mortality). The Nagelkerke’s R2 test showed that the risk scoring table for ACLF prognosis (mortality) had an R2 value of 0.599 in the training set and 0.722 in the validation set, which were higher than the R2 values of CTP, MELD, MELD-Na, and iMELD scores. The Hosmer-Lemeshow test showed that the risk scoring table for ACLF prognosis (mortality) had a P value of 0.280 in the training set and 0.788 in the validation set. The C-index analysis showed that the scoring table had a higher C-index than the other scoring models in the validation set (all P<0.001), as well as a higher C-index than CTP score in the training set (P<0.001). The decision curve analysis showed that the risk scoring table for ACLF prognosis (mortality) had higher clinical net benefits than the other scoring models. ConclusionCompared with other scoring models currently used in clinical practice, the novel risk scoring table for ACLF prognosis (mortality) constructed based on the six predictive factors of age, hepatic encephalopathy grade, an increase in TBil by ≥17.1 μmol/L per day, creatinine, neutrophil count, and international normalized ratio has a relatively high value in predicting the 28-day prognosis of ACLF patients.
9.Huoxue Jiedu Formulas (活血解毒方药) as an Adjunctive Therapy for Patients with Binding of Stasis and Toxin Syndrome during the Vulnerable Period after Myocardial Infarction:A Prospective Real-World Study
Xiaofei GENG ; Yingxi YANG ; Zhipeng YAN ; Xinbiao FAN ; Xitong SUN ; Boyu ZHU ; Zheng ZHANG ; Yongchun LIANG ; Xiaoyu SHAN ; Junping ZHANG
Journal of Traditional Chinese Medicine 2025;66(23):2467-2474
ObjectiveTo observe the efficacy of Huoxue Jiedu Formulas (活血解毒方药, HJF) as an adjunctive treatement for patients with binding of stasis and toxin syndrome during the vulnerable period after acute myocardial infarction (AMI) percutaneous coronary intervention (PCI) surgery, and to explore its potential mechanism from the perspective of serum neutrophil extracellular traps (NETs). MethodsA total of 129 patients with binding of stasis and toxin syndrome within 6 months after PCI for AMI were enrolled and divided into a treatment group (65 cases) and a control group (64 cases) based on patients' willingness to take Chinese herbal medicine. The control group received standard western medical therapy alone, while the treatment group additionally received HJF, one dose daily. Both groups were treated for four weeks. Before and after treatment, TCM syndrome scores were assessed. Seattle angina questionnaire (SAQ) was used to record angina stability and frequency scores, while the short form-36 health survey (SF-36) was employed to assess quality of life across eight dimensions, including physical functioning, role-physical, bodily pain, general health, vitality, social functioning, role-emotional, and mental health. The Pittsburgh sleep quality index (PSQI) was used to evaluate sleep quality, and the patient health questionnaire-15 (PHQ-15) was used to assess psychosomatic symptoms; Duke activity status index (DASI) was used to measure daily physical activity. Serum levels of neutrophil extracellular traps (NET) markers including myeloperoxidase-DNA (MPO-DNA), neutrophil elastase-DNA (NE-DNA), and citrullinated histone H3 (CitH3) were measured in 20 patients from the treatment group. ResultsAfter treatment, TCM syndrome score, PSQI score and PHQ-15 score in both groups significantly decreased, while DASI score, angina stability and frequency scores, and all eight dimensions of the SF-36 scale significantly increased (P<0.05). Compared to the control group, the treatment group had significantly lower TCM syndrome scores and significantly higher DASI, angina stability and frequency scores (P<0.05), as well as higher scores in the SF-36 dimensions of physical functioning, role-physical, social functioning, bodily pain, and vitality (P<0.05). After treatment, serum levels of MPO-DNA, CitH3, and NE-DNA in the treatment group were significantly reduced (P<0.05). ConclusionHJF combined with conventional therapy can significantly improve angina symptoms, TCM syndrome scores, and psychosomatic conditions in patients with binding of stasis and toxin syndrome during the vulnerable period after AMI. It also enhances quality of life, sleep quality, and daily physical activity. The underlying mechanism may be associated with the inhibition of serum NETs level.
10.Value of spectral CT multi-parameter imaging in preoperative prediction of lymphovascular invasion in invasive lung adenocarcinoma
Jinping MA ; Xiaoxu GUO ; Limin LEI ; Xiaofei YANG ; Yuhan ZHOU ; Yajie WANG ; Lina TAO ; Songwei YUE
Chinese Journal of Radiology 2025;59(9):997-1002
Objective:To investigate the value of quantitative parameters of dual-layer detector spectral CT (DLCT) in preoperative prediction of lymphovascular invasion (LVI) in invasive lung adenocarcinoma.Methods:This study employed a cross-sectional design. The data of 91 patients with primary lung adenocarcinoma confirmed by postoperative pathology who underwent DLCT enhanced scanning in the First Affiliated Hospital of Zhengzhou University from March 2022 to July 2024 were retrospectively collected. The patients were divided into LVI positive group and LVI negative group according to the postoperative pathology. Gender, age, smoking status, and lesion location were recorded,the clinical T-stage and N-stage were evaluated. Spectral base data images were generated based on the spectral reconstruction algorithm. Conventional CT features such as the size and density of the lesions were analyzed. The DLCT quantitative parameters such as 40 keV single-energy CT value (CT 40 keV), iodine density (ID), standardized iodine density (NID), and effective atomic number (Z eff) were measured. The differences of parameters between the two groups were compared using t-test, Mann-Whitney U test, or χ2 test. Multivariate logistic regression analysis was used to identify independent factors for predicting invasive lung adenocarcinoma LVI. The predictive performance of individual parameters and their combinations for LVI in invasive lung adenocarcinoma was evaluated using receiver operating characteristic curve analysis and area under the curve (AUC) measurements. Results:There were significant differences in age, T stage, N stage, maximum diameter, focal density, and arteriovenous stage NID and Z eff between the LVI positive group and the LVI negative group ( P<0.05). Multiple logistic regression analysis showed that age ( OR=0.890, 95% CI 0.821-0.966), N stage( OR=12.721, 95% CI 2.676-60.473) and venous stage Z eff( OR=0.012,95% CI 0-0.668) were independent factors for predicting invasive lung adenocarcinoma LVI ( P<0.05). The combination of age, N stage, and venous-phase Z eff values demonstrated the highest predictive efficacy for LVI in invasive lung adenocarcinoma, with an AUC of 0.916. Conclusions:The quantitative parameters of DLCT are helpful for preoperative prediction of LVI status of invasive lung adenocarcinoma. The Z eff in the venous stage is an independent predictor, the combination of multiple parameters can further improve the diagnostic efficiency.

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