Objectives:To investigate the predictive value of epicardial fat volume(EFV)and atrioventricular groove fat thickness(AVGT)—morphological biomarkers of epicardial adipose tissue—for major adverse cardiovascular events(MACE)in patients with dilated cardiomyopathy(DCM).Methods:This study enrolled 216 DCM patients.EFV and AVGT were obtained from cardiac magnetic resonance imaging(CMR).Patients were divided into event-free group(n=142)and event group(n=74)based on MACE occurrence during follow-up.Receiver operating characteristic(ROC)curve analysis was used to determine optimal cutoff values.Survival differences were assessed using Kaplan-Meier analysis,Cox proportional hazards regression analysis was used to identify independent risk factors,and restricted cubic spline(RCS)models were used to evaluate dose-response relationships.Results:AVGT and EFV were significantly higher in the event group than in event-free group(both P<0.05).ROC analysis identified optimal MACE-predicting cutoffs as follows:AVGT≥7.74 mm(area under the curve[AUC]=0.57)and EFV≥78.6 ml(AUC=0.62).Kaplan-Meier analysis revealed significantly lower MACE-free survival rates in patients with AVGT≥7.74 mm and EFV≥78.6 ml(both P<0.05).Cox regression analysis confirmed that AVGT(HR=2.18,95%CI:1.34-3.54)and EFV(HR=1.81,95%CI:1.11-2.96)were independent MACE risk factors(both P<0.05)in this patient cohort.RCS models demonstrated the significant linear associations between EFV/AVGT and MACE risk(bothoverall P<0.05).Conclusions:EFV and AVGT,the non-invasive imaging biomarkers quantifying and characterizing fat distribution,are independently correlated with elevated MACE risk in DCM patients.These metrics serve as potential prognostic indicators,enriching risk stratification indicators for early identification of high-risk patients and guiding personalized medication strategies.

Aim To systematically investigate the ac-tive components,targets,and regulatory pathways of Po-lygonum capitatum in intervening atherosclerosis(AS)through network pharmacology,molecular docking and animal experiments.Methods Active components of Polygonum capitatum and AS-related targets were screened and identified through database searches.Protein-protein interaction(PPI)network analysis was performed using the STRING database,followed by GO and KEGG enrichment analyses via the David plat-form.Molecular docking validation was conducted with AutoDock.An AS model was established in Syrian golden hamsters fed a high-fat diet.Predicted pathways and targets were validated using qPCR,ELISA,and histopathological assessment of aortic and hepatic tis-sues via HE staining.Results Network pharmacology identified 27 potential active components of Polygonum capitatum(primarily flavonoids such as quercetin and luteolin)and 110 drug-disease intersection targets,in-cluding core targets MMP-9,ALB,and AKT1.GO and KEGG analyses enriched 593 and 125 pathways,re-spectively,with the NF-κB inflammatory pathway,TNF signaling pathway and lipid metabolism/atherosclerosis pathways highlighted as key mechanisms.Animal ex-periments demonstrated that Polygonum capitatum im-proved serum lipid profiles(reduced TC,TG,LDL-C)in AS hamsters,suppressed the MMP-9/NF-κB signa-ling pathway(downregulated MMP-9,p65 phosphoryla-tion,TNF-α,and IL-6),and inhibited VSMC synthetic phenotypic transformation(upregulated α-SMA and myocardin)by downregulating MCPIP1.Additionally,Polygonum capitatum ameliorated aortic lesions and he-patic lipid deposition in AS hamsters.Conclusions Polygonum capitatum alleviates AS by synergistically regulating the MMP-9/NF-κB/MCPIP1 axis through flavonoid components,suppressing vascular inflammato-ry cascades and maintaining VSMC contractile pheno-types.This reflects Polygonum capitatum's multi-com-ponent,multi-pathway,and multi-target characteristics in combating AS.

Anticoagulants are widely used in the prevention and treatment of thromboembolism.Existing anticoagulants share the common feature of antagonizing or blocking critical steps in the coagulation cascade,which also increases the risk of bleeding.Studies have indicated that factor Ⅺ inhibitors represent a potential therapeutic option for balancing thrombosis and bleeding risks.In recent years,various factor Ⅺ inhibitors,including antisense oligonucleotides(ASOs),monoclonal antibodies,synthetic small molecules,natural peptides,and aptamers,have been extensively researched as potentially exploitable anticoagu-lants.Research findings also suggest that factor Ⅺ inhibitors can reduce bleeding risks while ensuring anticoagulant efficacy,ex-hibiting potential for thrombosis prevention and treatment in patient populations such as those with end-stage renal disease,non-cardioembolic ischemic stroke,and acute coronary syndrome.This article reviewed the mechanisms of action,drug classes,pharma-cological characteristics,and clinical research progress of factor Ⅺ inhibitors,aiming to provide insights into the development of new anticoagulants and clinical anticoagulant therapies.

Purpose To explore the clinical and pathological characteristics,diagnostic features,differential diag-nosis,and prognosis of polymorphous low-grade neuroepithelial tumor of the young(PLNTY).Methods Clinical and imaging data from 7 patients with PLNTY were collected.Morphological evaluation was performed using HE staining.Immunohistochemistry with the EnVision method was used to detect the expression of including CD34,BRAF,IDH1,GFAP,Ki67,and other proteins.BRAF gene mutations were detected by real-time PCR,CDKN2A/B and 1p/19q co-deletion were assessed by FISH,and next-generation sequencing(NGS)was performed on selected cases.Results Among the seven patients,six were male and one was female,aged 8-29 years(median age:22 years).Tumors were located in the temporal lobe(5 cases),left insula and anterior temporal lobe(1 case),and frontotemporal lobe(1 case).Six patients had a history of epilepsy.Histologically,all tumors displayed oligodendroglioma-like areas.Two cases exhibited perivascular pseudorosette-like arrangements,and two showed focal cellular pleomorphism.Calcifica-tion and capillary networks were observed in all cases.Immunohistochemically,all tumors were positive for GFAP and Olig-2 and negative for IDH1(R132H).CD34 showed diffuse positivity in all cases.BRAF was positive in five cases.The Ki67 proliferation index ranged from 1％to 5％.Molecularly,all cases were IDH-wild type,with no 1p/19q co-deletion or CDKN2A/B deletion.BRAF V600E mutants were identified in five cases,and FGFR alterations in two.During follow-up(5-48 months),all patients survived;five remained recurrence-free,while two experienced recur-rence.Conclusion As a rare low-grade neuroepithelial tumor,clinicians and pathologists should master the diagnostic key points and differential diagnosis of PLNTY to avoid misdiagnosis and missed diagnosis.

To establish a TaqMan-based multiplex RT-qPCR method for the identification of Japa-nese encephalitis virus(JEV),Porcine reproductive and respiratory syndrome virus(PRRSV),and Classical swine fever virus(CSFV),this study designed and synthesized three pairs of specific primers and probes based on the conserved sequences of JEV E,PRRSV ORF6,and CSFV E2 a-vailable in the NCBI GenBank.By optimizing the reaction system and protocol,a multiplex RT-qPCR method for detecting these three viruses was developed and applied to the detection of clini-cal samples.The results showed that the established TaqMan multiplex RT-qPCR specifically am-plified the gene fragments of JEV,PRRSV,and CSFV,and did not amplify other non-target genes,indicating good specificity of the method.Intra-assay and inter-assay repeatability tests showed that the coefficient of variation(Cv)values were all below 3％,demonstrating that the method has ex-cellent repeatability.Sensitivity tests revealed that the minimum detectable amount for the recom-binant plasmids of the three viruses was 100 copies/pL.Using the established method,a total of 969 samples,including blood,aborted fetuses,semen,and deceased pigs,from 26 pig farms in Guizhou Province were tested.The detection rates were 34.3％(332/969)for JEV,28.3％(274/969)for PRRSV,and 19.8％(192/969)for CSFV.The co-infection rates were 10.1％(98/969)for JEV and PRRSV,12.1％(117/969)for JEV and CSFV,and 14.6％(141/969)for CSFV and PRRSV.Additionally,the triple co-infection rate of JEV,PRRSV,and CSFV was 7.9％(77/969).These results indicate that the TaqMan multiplex RT-qPCR method developed in this study is ef-fective for detecting these three viruses in pig farms,providing technical support for identifying vi-ral causes of reproductive disorders.

In 2024,the Japanese Circulation Society(JCS)and the Japanese Heart Rhythm Society(JHRS)jointly released the updated guidelines for the management of cardiac arrhythmias.The guideline provided updates on strategies for arrhythmias management,including device therapy,catheter ablation,pharmacological treatment and comprehensive management of atrial fibrillation(AF).This article focuses on the management of AF,including stroke risk assessment,oral anticoagulation therapy,high-risk patients management,comprehensive strategies,and lifestyle interventions.The guideline proposed a new stroke risk scoring tool,the HELT-E2 S2 score,refined the management of anticoagulation therapy in special high-risk patients,and updated comprehensive management strategies and lifestyle interventions for AF.These updates aim to enhance the prognosis and quality of life for AF patients,and also provide valuable insights for the management optimization of AF patients in China.

Objective To explore the effects of preoperative transcatheter arterial chemoembolization(TACE)on early postoperative recurrence in the China liver cancer(CNLC)staging Ⅰb-Ⅱa patients with primary hepatocellular carcinoma.Methods The data of patients with CNLC Ⅰb-Ⅱa stage hepatocellular carcinoma who underwent curative liver resection in Xiangyang Central Hospital from May 2017 to May 2022 were retrospectively analyzed.A total of 76 patients were included,patients were divided into preoperative TACE group(n=32)and surgery group(n=44)according to whether they underwent preoperative TACE.Observe the postoperative recovery of patients.Combined with the postoperative pathological results,adjuvant TACE treatment is performed.Regular reexamination and follow-up are conducted after discharge.The Kaplan-Meier method was used to estimate survival time,calculate 95％CI,and plot the Disease-free(DFS)survival curve.The Cox proportional risk model was used for univariate and multivariate analysis.Results The 1-year disease-free survival rate in the preoperative TACE group was higher than that in the direct surgery group(96.9％vs.84.1％,P＞0.05).The 2-year disease-free survival rate in the preoperative TACE group was higher than that in the direct surgery group(90.6％vs.70.5％,P＜0.05).The disease-free survival of the preoperative TACE group was higher than the direct surgery group(23.03 months vs.20.14 months,P＜0.05).The incidence of treatment-related adverse events after surgery in the preoperative TACE group was higher than that in the direct surgery group(34.4％vs.20.5％,P＞0.05).Multivariate Cox regression analysis showed that different treatment methods,tumor number ≥ 2,and tumor microvascular invasion were prognostic factors affecting tumor recurrence.No severe adverse reactions occurred in either group,and no deaths caused by adverse reactions were observed.Conclusion Compared with direct surgery,preoperative TACE can help improve early postoperative recurrence,prolong patients'disease-free survival,and do not lead to serious adverse events.

The medical ultrasonic nebulizer was introduced in terms of composition,working principle and testing principle and method of the maximum nebulization rate.The testing characteristics of the volumetric and gravimetric methods were compared.A series of experiments were conducted using the whole-unit gravimetric approach.The initial liquid charge was indicated to be the primary factor affecting the maximum nebulization rate,and the influence increased significantly when the nebulizer's nominal volume got expanded.References were provided for medical testing staffs in selecting testing methods.

Objective To construct a quality control model for cervical liquid-based thin cell smears using two different artificial intelligence(AI)techniques and to compare the total use of the two methods to improve the level of quality control of cervical liquid-based thin cell smears through the assistance of hybrid AI.Methods In this study,105 cervical liquid-based thin cell smear samples were used.Convolutional neural network(CNN)algorithm and Transformer network algorithm were used as specific AI algorithms in the AI model.The labeled features included the number of cells in the slice,excessive red blood cells,excessive inflammatory cells,and air bubbles.The smear samples were pre-processed and digitized by smear,followed by image segmentation and feature extraction.Using the labeled feature data,machine learning models were trained and optimized.Statistical AI and physician QC results were analyzed by calculating KAPPA index,sensitivity,specificity,area under the curve(AUC),and other indexes for AI QC results.Results CNN algorithm QC results in normal smear,inflammatory background and bloody background were significantly different from the expert review QC results(P＜0.001).Transformer algorithm QC results were similar to the expert review results,with no statistical difference(P＞0.05).General practitioner QC results were statistically different from the expert review QC results in normal smear detection rate and bloody background(P＜0.001).CNN algorithm Kappa value was 0.567,which had medium consistency with expert review results.Transformer algorithm Kappa value was 0.890,with the best consistency with expert review results.General practitioner Kappa value was 0.675,which had better consistency with expert review results.Using the expert review results as a reference standard,the predictive efficacy of the Transformer algorithm and the general practitioners' QC results was evaluated,and the predictive efficacy of the Transformer algorithm was higher than that of the general practitioners in detecting hemorrhagic backgrounds and normal smears(inflammatory backgrounds:AUC=1.000;normal smears:AUC=0.768)(hemorrhagic backgrounds:AUC=0.849;normal smears:AUC=0.849;normal smear:AUC=0.500).Conclusion In this study,we found that the Transformer algorithm was effective in improving the quality control of cervical liquid-based thin-layer cell smears by assisting doctors to perform smear quality control scoring and improving the efficiency and accuracy of smear sample quality control.It can be used as a new quality control method for cervical cancer cytological screening and has potential clinical applications.

In 2024,the Japanese Circulation Society(JCS)and the Japanese Heart Rhythm Society(JHRS)jointly released the updated guidelines for the management of cardiac arrhythmias.The guideline provided updates on strategies for arrhythmias management,including device therapy,catheter ablation,pharmacological treatment and comprehensive management of atrial fibrillation(AF).This article focuses on the management of AF,including stroke risk assessment,oral anticoagulation therapy,high-risk patients management,comprehensive strategies,and lifestyle interventions.The guideline proposed a new stroke risk scoring tool,the HELT-E2 S2 score,refined the management of anticoagulation therapy in special high-risk patients,and updated comprehensive management strategies and lifestyle interventions for AF.These updates aim to enhance the prognosis and quality of life for AF patients,and also provide valuable insights for the management optimization of AF patients in China.