ObjectiveTo analyze the research hotspots and development trends in the field of spinal cord stimulation (SCS) for spinal cord injury (SCI). MethodsLiterature about SCS for SCI was retrieve from the Web of Science (WOS) Core Collection database, with a time range from January, 1999 to July, 2025. VOSviewer 1.6.20 and CiteSpace 6.4.R2 were used to analyze the annual publication volume, countries, authors, institutions, journals and keywords. ResultsA total of 636 literatures were included. From 1999 to 2025, the overall publication trend in this field showed an upward trajectory, with recent years fluctuating but tending to stabilize. The country with the most publications was the United States (429 papers), followed by Russia (98 papers) and China (70 papers). The institution with the highest number of publications was the University of California, Los Angeles (76 papers), the author with the most publications was V. Reggie Edgerton (70 papers), and the journal with the most publications was Journal of Clinical Medicine (31 papers). The most frequently cited study focused on exploring the combination of epidural spinal cord stimulation with task-specific training to restore motor function in patients with complete SCI. Keyword analysis showed that the research hotspots in this field were mainly focused on neuroregulation mechanisms, recovery of motor and autonomic nervous dysfunction, artificial intelligence, closed-loop stimulation and brain-computer interface technology innovations. In recent years, the research focus gradually shifted from basic mechanisms to personalized and precise multifunctional rehabilitation strategies. ConclusionThe field of SCS for SCI has undergone phases of basic mechanism exploration and clinical application expansion. Current research hotspots and future trends focus primarily on the development of new stimulation paradigms and combined innovative technologies.

ObjectiveTo evaluate the therapeutic effect of Shenji Guben prescription （SJGB） on chronic obstructive pulmonary disease （COPD） in mice and to explore its potential therapeutic mechanism via transcriptomics. MethodsA mouse model of COPD was established by combined exposure to lipopolysaccharide （LPS） and cigarette smoke. C57BL/6J mice were randomly allocated into a control group， a model group， an acetylcysteine （78 mg·kg^-1·d^-1） group， and low- （7.5 g·kg^-1·d^-1）， medium- （15 g·kg^-1·d^-1）， and high-dose （30 g·kg^-1·d^-1） SJGB groups. After 13 weeks of modeling， oral administration was initiated and continued for 28 days. The therapeutic effects of SJGB were assessed based on body weight， lung function， lung tissue pathology， and inflammatory factors in bronchoalveolar lavage fluid （BALF）. Ultra-high performance liquid chromatography-tandem mass spectrometry （UHPLC-MS/MS） was employed to identify the active ingredients in SJGB. Transcriptomic profiling of lung tissue was performed by RNA-seq to identify differentially expressed genes （DEGs）， followed by gene ontology （GO） enrichment analysis， Kyotoencyclopedia of Genes and Genomes （KEGG） enrichment analysis， Gene Set Enrichment Analysis （GSEA）， and protein-protein interaction （PPI） network construction. Key genes were further validated by Western blot and Real‑time polymerase chain reaction （Real-time PCR）. ResultsAfter drug intervention， the final body weights of mice in medium- and high-dose SJGB groups were higher than those in the model group （P<0.05）. Compared with the model group， SJGB groups demonstrated a significant decrease in expiratory time （Te）， along with increases in peak expiratory flow （PEF）， 50% expiratory flow （EF50）， tidal volume （TV）， and expiratory volume （EV） （P<0.05）. High-dose SJGB ameliorated pathological changes in the lung tissue， reduced peribronchial inflammation scores， and decreased mean linear intercept （MLI） （P<0.01）. Compared with the model group， medium- and high-dose SJGB groups showed reductions in interleukin-6 （IL-6） and interleukin-1β （IL-1β） levels （P<0.01）. UHPLC-MS/MS revealed that the five most abundant components in SJGB were （S）-actinidine， ephedrine， pyroglutamic acid， methylephedrine， and coumarin. Transcriptomic analysis revealed 219 DEGs regulated by SJGB， suggesting that the anti-COPD effects of SJGB may be mediated through key genes such as cluster of differentiation 68 （CD68）， integrin subunit alpha X （ITGAX）， and cathepsin S （CTSS）， primarily involved in the lysosomal pathway. Western blot and Real-time PCR results confirmed that SJGB inhibited the expression of CD68， ITGAX， and CTSS compared with the model group （P<0.05）. ConclusionSJGB effectively improved the lung function and attenuated lung tissue inflammation in the mouse model of COPD by modulating the lysosomal pathway and related genes including CD68， ITGAX， and CTSS.

Alzheimer's disease(AD)is a highly destructive neurodegenerative disorder,and due to its complex pathology and insuffi-cient treatment,it is urgent to explore new targets that can directly address the root cause of the disease.In recent years,numerous stud-ies have shown that triggering receptor expressed on myeloid cells 2(TREM2)in microglial cells has the function of delaying the pro-gression of AD,and its abnormality plays a key role in the development and progression of AD,with a potential of being used as a target for the treatment of AD.This article reviews the biological characteristics of TREM2 and discusses its important role in the three major pathological features of AD and its potential as a target for AD treatment,in order to deepen the understanding of the role of TREM2 in AD and provide a theoretical reference for exploring new targets for AD treatment in the future.

Objective To evaluate the efficacy and safety of obinutuzumab(OBZ)in the treatment of refractory primary membranous nephropathy(pMN).Methods The clinical data of 15 patients with refractory pMN who received OBZ treatment in Department of Nephrology of The First Affiliated Hospital of Naval Medical University between Jan.2022 and Sep.2024 were retrospectively analyzed,and they included basic information,relevant laboratory indexes,clinical and immunological outcomes,and adverse events.Results Among the 15 patients with refractory pMN,14(93.3％)were phospholipase A2 receptor(PLA2R)-associated membranous nephropathy(10 cases with positive PLA2R by renal biopsy and 4 cases with no recorded PLA2R results by renal biopsy but with positive serum PLA2R antibodies).During the follow-up period,all 15 patients achieved clinical remission,with 4(26.7％)patients achieving complete remission and 11(73.3％)patients achieving partial remission.Of the 12 patients with positive serum PLA2R antibodies,11 patients had continuously positive serum PLA2R antibodies before OBZ treatment,and 9(81.8％)patients achieved immunological remission after OBZ treatment.All the 15 patients had previously received immunosuppressive therapy,and all of them were classified as refractory pMN,with 7(46.7％)patients having been treated with cyclophosphamide combined with corticosteroids,2(13.3％)patients having been treated with calcineurin inhibitor combined with corticosteroids,11(73.3％)patients having received rituximab.During the treatment,2(13.3％)cases of adverse events were observed:1 patient experienced transient liver dysfunction,and the transaminase returned to normal after discontinuing atorvastatin;another patient developed a positive T-cell spot test for Tuberculosis infection during the intertreatment interval and successfully completed the subsequent OBZ treatment and achieved clinical remission after treatment with isoniazid and rifampicin.Conclusion OBZ demonstrates favorable clinical efficacy in the treatment of refractory pMN,with a low incidence of adverse events.

OBJECTIVE To investigate the selection strategy for recipient vessels in free flap reconstruction of head and neck defects.METHODS A retrospective analysis was conducted on 96 patients who underwent 99 free flap reconstructions for head and neck defects between January 2020 and December 2024.Recipient vessel selection,flap survival,and postoperative complications were analyzed based on defect location and flap type.RESULTS In 99 cases microvessel anastomosis,the recipient arteries were superior thyroid artery in 49 branches,facial artery in 28 branches,superficial temporal artery in 14 branches,lingual artery in 5 branches.external carotid artery in 1 branch,transverse cervical artery in 1 branch,and superior laryngeal artery in 1 branch.Venous anastomosis was performed in 104 branches,with 94 cases in 1 venous anastomosis and 5 cases in 2 venous anastomoses.The recipient veins selected were facial vein in 62 branches,external jugular vein in 21 branches,superficial temporal vein in 12 branches,retromandibular vein in 3 branches,middle thyroid vein in 2 branches,internal jugular vein in 2 branches,middle temporal vein in 1 branch,and superior thyroid vein in 1 branch.Complete flap necrosis occurred in 5 cases,and partial necrosis occurred in 4 cases.When the recipient vessels were deficient,the lingual artery was chosen in 3 cases,the facial artery in 1 case,the external jugular vein in 3 cases,the internal jugular vein with end-to-side anastomosis in 1 case,and the common facial vein with end-to-side anastomosis in 1 case.CONCLUSION In free flap reconstruction for head and neck defects,the superior thyroid artery,facial artery,and superficial temporal artery are commonly used as recipient arteries,while the facial vein,external jugular vein,and superficial temporal vein are frequently selected as recipient veins.When recipient vessels are scarce,the ipsilateral lingual artery,transverse cervical artery,and main trunk of the internal jugular vein can serve as alternative recipient vessels.

OBJECTIVE To explore the application of the facial artery musculomucosal(FAMM)flap for the reconstruction of head and neck defects.METHODS A retrospective analysis of 9 patients with head and neck defects reconstructed with the FAMM at the Department of Otolaryngology Head and Neck Surgery,Beijing Tongren Hospital,Capital Medical University,between May 2019 and March 2024.Data regarding defect location,flap size,and postoperative complications were analyzed.RESULTS The defect locations among the nine patients were as follows:hard palate(3 cases),soft palate(2 cases),nasal septum and columella(1 case),oropharyngeal lateral wall(1 case),retromolar region and oropharyngeal lateral wall(1 case),and lower lip(1 case).The FAMM flap sizes ranged from 1.5 cm×2.5 cm to 4 cm×6 cm.Primary closure of the donor site was achieved by direct intermittent suturing in 7 cases;one case was repaired using acellular dermal matrix,and 1 case was repaired using a buccal fat pad graft.Postoperatively,eight flaps survived completely,while 1 flap experienced necrosis.None of the patients developed trismus or malocclusion.CONCLUSION The FAMM flap is suitable for reconstructing defects of the hard palate,soft palate,lower lip or oropharyngeal lateral wall.With reliable blood supply and an intraoral donor site,it offers relatively favorable aesthetic outcomes and is worthy of widespread adoption.

As a new generation of time-of-flight mass spectrometry,multiple-reflection time-of-flight mass spectrometry(MR-TOF-MS)has been increasingly applied in the fields such as nuclear physics,chemistry,and biology due to its ultra-high resolution and rapid analysis capabilities.However,the analytical performance of MR-TOF-MS largely depends on the ion bunch state entering the mass analyzer.In this study,a rectangular ion trap(RIT)was developed,designed and processed using printed circuit board technology,as an ion accumulating and focusing device for MR-TOF mass analyzer.Compared to traditional ion traps composed of two sets of planar electrodes,this RIT had higher voltage utilization efficiency,resulting in more efficient ion collection and focusing.The ions were cooled to a sufficiently small bunch for precise mass measurement with MR-TOF-MS mass spectrometry in only 1 ms of cooling time in the RIT,then orthogonally ejected to the MR-TOF mass spectrometer for mass analysis.Experimental results indicated that the working cycle,ion flux,and ion focusing state of the RIT fully met the requirements of the MR-TOF mass analyzer.When coupled with the MR-TOF mass analyzer,the RIT enabled MR-TOF-MS to achieve a mass resolution of 1.5×105.

As a serine protease,thrombin can convert soluble fibrinogen into insoluble fibrin and plays a pivotal role in the coagulation cascade.Therefore,the accurate quantitative assay of thrombin levels is of great value in the evaluation of coagulation function,clinical screening and prognostic monitoring of coagulation-related diseases,and screening of drugs for targeted therapy.Existing methods for thrombin detection can be divided into two categories,e.g.,the assay of concentration levels using nucleic acid aptamers as the affinity elements and the assay of activity levels based on the hydrolytic cleavage of substrate peptides.In recent years,electrochemical biosensors have attracted much attention in thrombin detection due to high sensitivity,high selectivity,simple instrument,fast response,and good portability.In this review,the latest research progress in methods for electrochemical detection of thrombin was summarized,focusing on the detection principles and the applied signal amplification strategies of related electrochemical biosensors.In addition,the challenges with respect to the practical use of electrochemical thrombin biosensors and the prospects were discussed.

The 2024 National Education Work Conference pointed out that at the current juncture of the critical period for achieving the goals and tasks of the 14th Five-Year Plan,the implementation of the Education Powerhouse Construction Plan Outline should be taken as the main line of work,and building first-class disciplines is an crucial task for a higher education powerhouse.In 2022,forensic medicine was officially listed as a first-level discipline under the medical category,presenting an un-precedented historical opportunity for the development of forensic medicine.The forensic medicine dis-cipline of Southern Medical University comprehensively improves the quality of talent cultivation and facilitates the construction of first-class disciplines as its main direction.It aims to initiate and imple-ment a high-level faculty team building plan featuring"combining recruitment and cultivation,inter-disciplinary integration";make vigorous efforts to establish a first-level doctoral program,refine advan-tageous second-level disciplines and research directions;and establish an innovative research platform from a high starting point with deep integration.The discipline adheres to moral cultivation and the Five Domains of Education simultaneous development,to build a high-quality talent joint training model.Guided by the construction of the national legal system and industry needs,the discipline will enhance social service capabilities.The forensic medicine construction in our university will continue to contribute to the rule of law in China and educational power.

Objective To investigate the effect of erioside E on myocardial injury after myocardial infarction(MI)by regulating hypoxia-inducible factor-2α(HIF-2α)-mediated pyroptosis of cardiomyocytes and its possible mechanism.Methods Thirty rats were randomly divided into sham-operation group,MI group,and erioside E group,with 10 rats in each group.Cardiomyocytes H9C2 were cultured and divided into control group,hypoxia group,erioside E group and HIF-2α overexpression group.Masson staining was used to observe myocardial fibrosis and infarct size.The protein expressions of HIF-2α,NLRP3,Caspase-1 and GSDMD were detected by Western blotting.RT-qPCR was used to detect the mRNA expressions of HIF-2α,NLRP3,Caspase-1 and GSDMD.EdU kit was used to detect the proliferation of cardiomyocytes.The expressions of NLRP3,Caspase-1 and GSDMD proteins in cardiomyocytes were detected by immunofluorescence staining.Results Compared with the sham-operation group,the myocardial fibrosis level and infarct size were significantly increased in the MI group(P＜0.05),and the protein expressions of HIF-2α,pyroptosis-related proteins of NLRP3,Caspase-1 and GSDMD in myocardial tissue were increased(P＜0.05).Compared with the MI group,the level of myocardial fibrosis and infarct size were significantly decreased(P＜0.05),the protein expression of HIF-2α in myocardial tissue was increased,and the protein expressions of NLRP3,Caspase-1 and GSDMD were decreased in the erioside E group(P＜0.05).Compared with the control group,the hypoxia group had a significant reduction in the proliferation of cardiomyocytes and significant increase in the mRNA and protein expressions of HIF-2α,NLRP3,Caspase-1 and GSDMD(P＜0.05).Compared with the hypoxia group,the proliferation ability of cardiomyocytes was significantly increased,and the expressions of HIF-2α,NLRP3,Caspase-1 and GSDMD mRNA in cardiomyocytes were decreased in the erioside E group(P＜0.05),while the protein expression of HIF-2α in cardiomyocytes was increased in the HIF-2αoverexpression group.The protein expressions of NLRP3,Caspase-1 and GSDMD were significantly decreased(P＜0.05).Conclusion Erioside E can improve myocardial injury by upregulating HIF-2α to inhibit myocardial pyroptosis.