1.Effect of transcranial magneto-acousto-electrical stimulation on the plasticity of the prefrontal cortex network in mice
Shuai ZHANG ; Zichun LI ; Yihao XU ; Xiaofeng XIE ; Zhongsheng GUO ; Qingyang ZHAO
Chinese Journal of Tissue Engineering Research 2025;29(6):1108-1117
BACKGROUND:Transcranial magneto-acoustic-electrical stimulation is a novel non-invasive neural regulation technique that utilizes the induced electric field generated by the coupling effect of ultrasound and static magnetic field to regulate the discharge activity of the nervous system.However,the mechanism by which it affects synaptic plasticity in the brain is still not enough. OBJECTIVE:To explore the effect of transcranial magneto-acoustic-electrical stimulation intensity on synaptic plasticity of the prefrontal cortex neural network in mice. METHODS:(1)Animal experiment:Twenty-four C57 mice were equally and randomly divided into four groups:the control group receiving pseudo-stimulation,the 6.35 W/cm2 stimulation group receiving coupled stimulation of 0.3 T,6.35 W/cm2,the 17.36 W/cm2 stimulation group receiving coupled stimulation of 0.3 T,17.36 W/cm2,and the 56.25 W/cm2 stimulation group receiving coupled stimulation of 0.3 T,56.25 W/cm2.The local field potential signals and behavioral correctness were recorded during the execution of T-maze in mice.(2)Modeling and simulation experiments:A neural network model of the prefrontal cortex in mice stimulated by transcranial magneto-acoustic-electrical stimulation was constructed to compare the structural connectivity characteristics of the neural network under different stimulation intensities. RESULTS AND CONCLUSION:Transcranial magneto-acoustic-electrical stimulation could effectively shorten the behavior learning time,improve the working memory ability of mice(P<0.05),and continue to stimulate the frontal lobe of mice after learning behavior.There was no significant difference in the accuracy of the T-maze behavioral experiment among the experimental groups(P>0.1).Analysis of local field potential signals in the frontal lobe of mice revealed that transcranial magneto-acoustic-electrical stimulation promoted energy enhancement of β and γ rhythms.As the stimulation intensity increased,there was an asynchronous decrease in β and γ rhythms.Through β-γ phase amplitude coupling,it was found that stimuli could enhance the neural network's ability to adapt to new information and task requirements.Modeling and simulation experiments found that stimulation could enhance the discharge level of the neural network,increase the long-term synaptic weight level,and decrease the short-term synaptic weight level only when the stimulation intensity was high.To conclude,there is a complex nonlinear relationship between different stimulus intensities and the functional structure of neural networks.This neural regulation technique may provide new possibilities for the treatment of related neurological diseases such as synaptic dysfunction and neural network abnormalities.
2.Interpretation on the Chinese Guidelines for the Diagnosis and Treatment of Systemic Lupus Erythematosus (2025 edition)
Yangzhong ZHOU ; Jiuliang ZHAO ; Xinping TIAN ; Xiaofeng ZENG ; Mengtao LI
Medical Journal of Peking Union Medical College Hospital 2025;16(5):1193-1198
Systemic lupus erythematosus (SLE) is a highly heterogeneous systemic autoimmune disease characterized by multi-organ involvement, recurrent flares, and chronic progression. With advances in diagnostics and therapeutics, SLE management is shifting from disease control toward long-term remission and organ protection. Incorporating recent global evidence and characteristics of the Chinese population, the National Clinical Research Center for Dermatologic and Immunologic Diseases and the Chinese SLE Treatment and Research Group (CSTAR) have developed the
3.Preliminary experience of robotic-assisted kidney transplantation in a single center
Mingxiao ZHANG ; Zhenshan DING ; Jianfeng WANG ; Ying ZHAO ; Tianyu ZHANG ; Chuanzhen CAO ; Yisen DENG ; Xiaofeng ZHOU
Organ Transplantation 2024;15(3):422-428
Objective To evaluate the safety, effectiveness and feasibility of robotic-assisted kidney transplantation (RAKT). Methods Clinical data of 16 patients who underwent kidney transplantation were collected. Among them, 8 recipients received RAKT (RAKT group) and 8 cases underwent open kidney transplantation (OKT) with the contralateral kidney from the same donor (OKT group). Perioperative status and the recovery of renal allograft function were compared between two groups. Results All patients successfully completed the surgery. In the RAKT group, no patient was converted to open surgery. The operation time in the RAKT group was longer than that in the OKT group (P=0.015). No significant differences were observed in the serum creatinine levels before surgery and upon discharge between two groups (both P>0.05). In the OKT group, one recipient developed delayed graft function (DGF), and the remaining recipients did not experience perioperative complications. No significant difference was noted in the short-term recovery of renal allograft function between two groups (P>0.05). Conclusions Postoperative recovery of the recipients in the RAKT group is equivalent to that of their counterparts in the OKT group. RAKT is a safe and effective procedure for the team expertise in kidney transplantation.
4.Study on Zhou Meisheng's moxibustion treatment for epidemic hemorrhagic fever based on data mining and knowledge map
Bingyuan ZHOU ; Caifeng ZHU ; Haiyang ZHAO ; Xiaofeng QIN ; Fei DAI ; Na ZHANG ; Yumei JIA ; Anqi WU
International Journal of Traditional Chinese Medicine 2024;46(3):369-376
Objective:To explore the therapeutic law of moxibustion in Professor Zhou Meisheng's medical manuscripts for epidemic hemorrhagic fever (EHF) based on data mining and knowledge map technology.Methods:The manuscript data of Professor Zhou Meisheng's moxibustion treatment of EHFwere collected from Infectious Diseases Department of Dangshan County People's Hospital from December 16, 1985 to December 25, 1987. Graphpad Grism 8.0 software was used for descriptive analysis. PHP 5.4 program code was used for association rule analysis. SPSS Statistics 26.0 was used for clustering analysis. Neo4j Community 3.5.25 database was used to analyze the syndrome-weight graph.Results:205 prescriptions were included. There were 21 symptoms with frequency>40, in which the frequency of aversion to cold, fever, rash and irritability was 100%. The main types of moxibustion methods used in the treatment included moxibustion frame fumigation moxibustion, Wanying acupoint moxibustion pen moxibustion, and fire needle instead of moxibustion. There were 29 acupoints with a frequency of >25, including Zhongwan (CV12), Shenshu (BL23) and Mingmen (DU4), etc. Association rules showed that Sanyinjiao (SP6)-Zhongwan (CV12)-Feishu (BL13)-Shenshu (BL23)-Zhiyang (DU9) had the highest correlation. Six effective clustering combinations of moxibustion for EHF were summarized by clustering analysis. The weight graph can obtained the first 30 relationships with high correlation of target syndromes.Conclusions:Professor Zhou applied the idea of "moxibustion for heat syndrome" to the treatment of EHF, and took the method of "acupoint selection according to symptoms" as the main acupoint selection idea for moxibustion treatment of EHF. In clinical practice, moxibustion combined with auxiliary operation of TCM is often used to treat EHF, which can achieve good results.
5.Introduction to the revision of Diagnostic Standard for Occupational Medicamentose-like Dermatitis due to Trichloroethylene
Lihua XIA ; Ying ZHANG ; Xiaofeng DENG ; Shanyu ZHOU ; Yongshun HUANG ; Xiying LI ; Qifeng WU ; Muwei CAI ; Xiaowen LUO ; Fengling ZHAO
China Occupational Medicine 2024;51(1):37-42
With the development of clinical related disciplines, the update and establishment of relevant standards/guidelines at home and abroad, GBZ 185-2006 Diagnostic Criteria for Occupational Medicamentose-like Dermatitis due to Trichloroethylene (hereinafter referred to as “GBZ 185-2006”) was unable to meet clinical needs. Therefore, the GBZ 185-2006 was revised based on the principles of evidence-based medicine, in accordance with relevant laws/regulations and relevant standards/guidelines in combination with review of research data on occupational medicamentose-like dermatitis due to trichloroethylene (OMDT) home and abroad, and the development of clinical practice and clinical related disciplines. The main modifications include: adding terms and definitions of OMDT, modifying the description of clinical manifestations of the diagnostic principles, adjusting the description of latency, deleting the diagnostic requirement of the incidence probability, adding the specific allergen patch test as the etiological diagnostic index, standardizing the application scope, operating procedure and precautions of the specific allergen patch test. In addition, the relevant content of “Basic Characteristics and Clinical Types of Skin Damage of Medicamentose-like Dermatitis due to Trichloroethylene” in Appendix A is improved, the treatment principles are revised, and the content of new progress in treatment, artificial liver application, are added. The revised GBZ 185-2024 Diagnostic Standard for Occupational Medicamentose-like Dermatitis due to Trichloroethylene is more scientific and practical, and can provide technical basis for the standardized diagnosis and treatment of OMDT in medical and health institutions.
6.Factors affecting hospitalization costs among stroke patients in Nanshan District
ZOU Quan ; ZHAO Xinxing ; CHEN Hong' ; en ; WU Lanlan ; LIANG Xiaofeng ; WU Jing ; WANG Changyi
Journal of Preventive Medicine 2024;36(4):328-332,337
Objective:
To analyze the influencing factors for hospitalization costs among stroke patients with different subtypes, so as to provide the reference for reducing the economic burden of patients.
Methods:
Data of patients with hemorrhagic or ischemic stroke who were discharged from hospitals in Nanshan District, Shenzhen City from January 1, 2016 to December 31, 2021 were collected through Hospital Information System. Hospitalization costs were analyzed between hemorrhagic and ischemic stroke patients, and factors affecting hospitalization costs among stroke patients with different subtypes were identified using a structural equation model.
Results:
A total of 10 298 patients with stroke were recruited, including 2 820 patients with hemorrhagic stroke (27.38%) and 7 478 patients with ischemic stroke (72.62%). The patients with hemorrhagic stroke had a median duration of hospital stay of 19.00 (interquartile range, 18.00) d, and a median hospitalization cost of 26 759.48 (interquartile range, 51 000.87) Yuan. The patients with ischemic stroke had a median duration of hospital stay of 12.00 (interquartile range, 10.00) d, and a median hospitalization cost of 12 199.87 (interquartile range, 13 290.20) Yuan. Structural equation model analysis showed that department of hospitalization, discharge status, ways of leaving hospital, surgery and hypertension had direct effects on hospitalization costs and indirect effects on hospitalization costs through duration of hospital stay among hemorrhagic stroke patients, and duration of hospital stay had the highest total effect (0.684), followed by surgery (0.632). Employment status, admission route, department of hospitalization, ways of leaving hospital, payment mode, surgery and dyslipidemia had direct effects on hospitalization costs and indirect effects on hospitalization costs through duration of hospital stay among ischemic stroke patients, and duration of hospital stay (0.746), surgery (0.424) and department of hospitalization (0.151) ranked the top three in total effects.
Conclusion
The hospitalization cost is relatively high among stroke patients in Nanshan District, and duration of hospital stay and surgery have great influence on hospitalization costs among stroke patients with different subtypes.
7.Effects of Huatan Quyu Decoction on Cognitive Function and Expressions of GABA and VILIP-1 in Brain Tissue in Rats with Cerebral Small Vessel Disease
Yuqian TIAN ; Yongjun FANG ; Yali HU ; Hui ZHANG ; Xiaofeng HUANG ; Pengfang WEI ; Xinya ZHAO ; Yongmei YAN
Chinese Journal of Information on Traditional Chinese Medicine 2024;31(2):123-129
Objective To observe the effects of Huatan Quyu Decoction on cognitive function and the expressions of GABA and VILIP-1 in brain tissue of rats with cerebral small vessel disease;To discuss its mechanism for treatment on cerebral small vessel disease.Methods Totally 48 male SD rats were randomly divided into blank group,model group,Huatan Quyu Decoction low-and high-dosage groups,with 12 rats in each group.Except for the blank group,a rat model of cerebral small vessel disease was prepared by in vitro injection of homologous microemboli.Huatan Quyu Decoction low-and high-dosage groups were given Huatan Quyu Decoction 1.25 and 2.5 g/kg by gavage,the blank group and model group were gavage with equal amounts of distilled water for 28 consecutive days.Morris water maze experiment was conducted on day 1,7,14,and 28 after administration to evaluate the learning and memory abilities of rats,HE staining was used to observe pathological changes in hippocampal tissue,and immunohistochemical staining was used to detect the expressions of GABA and VILIP-1 proteins in brain tissue.Results Compared with the blank group,the escape latency of Morris water maze experiment in model group significantly prolonged(P<0.05),and the number of crossing platforms was significantly reduced(P<0.05);the arrangement of hippocampal tissue cells was disordered,gaps widen,and nuclei atrophy and necrosis,the GABA expression in brain tissue significantly decreased(P<0.05),while the VILIP-1 expression significantly increased(P<0.05).Compared with the model group,the escape latency of Morris water maze experiment in the Huatan Quyu Decoction low-and high-dosage groups significantly shortened(P<0.05)on day 7,14,and 28 of administration,and the number of crossing platforms significantly increased(P<0.05),GABA expression significantly increased(P<0.05),while VILIP-1 expression significantly decreased(P<0.05).Compared with the Huatan Quyu Decoction low-dosage group,the escape latency of Morris water maze experiment in Huatan Quyu Decoction high-dosage group decreased at various time points,and the number of crossing platforms increase,the pathological damage of hippocampal tissue was reduced,the expression of GABA in brain tissue increased,and the expression of VILIP-1 decreased,with statistical significance(P<0.05).Conclusion Huatan Quyu Decoction can increase the expression of GABA in brain tissue and inhibit the expression of VILIP-1,thereby improve the cognitive function of rats with cerebrovascular disease.
8.Quality Evaluation Status of Traditional Chinese Medicine Knowledge Bases and the Construction of Evaluation Indexes
Saisai ZHAO ; Yaqi FAN ; Yun ZHANG ; Weiguang WANG ; Zijie CHEN ; Xiaofeng LIU ; Shuangqing ZHAI
Journal of Traditional Chinese Medicine 2024;65(11):1115-1119
From the perspectives of traditional Chinese medicine (TCM) information knowledge base and assisted decision-making knowledge base, the construction status, quality evaluation status and existing problems of current TCM knowledge bases have been sorted out. And based on the quality evaluation strategies and dimensions of know-ledge bases in other disciplines, the evaluation indexes for TCM knowledge base is discussed, and the evaluation framework is initially formed, providing ideas for the improvement of the TCM knowledge base evaluation system. In terms of the evaluation indexes, there are basic evaluation dimensions which include data sources, data collection, and data application. The specific evaluation dimension of the information-based knowledge base is data quality, while that of the assisted decision-making knowledge base is data matching. Except for the data application dimension which counts the valid data items in the database for calculation, other indexes are scored based on the qualitative evaluation of "yes", "no" or "unknown". The basic evaluation score and the specific evaluation score are added to obtain the total score. The knowledge base is graded according to the score, and the results are presented in the form of grade plus number.
9.Effective Components and Antiarrhythmic Mechanisms of Wenxin Granules Based on CMC/UPLC-Q-TOF/MS
Lu YU ; Shule QIAN ; Haizhen GUO ; Yuke ZHAO ; Xiaofeng LI ; Wuxun DU
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(19):124-132
ObjectiveTo employ the effective components and antiarrhythmic mechanism of Wenxin Granules (WXKL) by cell membrane chromatography (CMC) and ultra-performance liquid chromatography-quadrupole time-of-flight mass spectrometry (UPLC-Q-TOF/MS), combined with network pharmacology. MethodIn this study, the CMC/UPLC-Q-TOF/MS technique was employed to identify the components in WXKL that could specifically bind to myocardial cell membranes. By utilizing databases such as SwissTarget Prediction and GeneCards, the targets of WXKL's effective components and arrhythmia-related targets were mined. Cytoscape software was used to construct a "component-target-disease" network. Gene ontology(GO) function and Kyoto encyclopedia of genes and genomes(KEGG) pathway enrichment analyses were carried out, and molecular docking of key components and targets was performed. Finally, further verification was conducted through in vivo experiment of rats. ResultA total of 39 effective components were identified in WXKL. These included 13 components derived from Panax notoginseng, 15 components from Codonopsis pilosula, seven components from Glycyrrhizae Radix et Rhizoma, one component from Succinum, one component from Polygonatum odoratum, one component shared by both P. odoratum and C. pilosula, and one component shared by both Panax notoginseng and C. pilosula. Network pharmacology predicted that WXKL had 16 core antiarrhythmic targets and 79 related pathways, mainly involving adrenergic signaling in cardiomyocytes, cyclic guanosine monophosphate (cGMP)/protein kinase G (PKG), calcium signal, cyclic adenosine monophosphate (cAMP), interleukin (IL)-17, mitogen-activated protein kinase (MAPK), and tumor necrosis factor (TNF) signaling pathways. The results of in vivo experiment of rats showed that WXKL significantly improved the expression of β1-adrenergic receptor (β1-AR), cAMP, TNF-α, and calcium voltage-gated channel subunit alpha 1C (CACNA1C). ConclusionWXKL can exert its antiarrhythmic effects through multiple components, multiple targets, and multiple pathways. This study provides a scientific basis for explaining the potential pharmacodynamic substance foundation and mechanism of action of traditional Chinese medicine in treating arrhythmia.
10.Palliative surgery versus simple medication therapy for secondary non-ischemic mitral regurgitation: A retrospective cohort study
Yiwei XU ; Mi ZHOU ; Jiaxi ZHU ; Lei KANG ; Xiaofeng YE ; Jiapei QIU ; Haiqing LI ; Zhe WANG ; Anqing CHEN ; Qiang ZHAO
Chinese Journal of Clinical Thoracic and Cardiovascular Surgery 2024;31(07):1000-1006
Objective To compare the effect of palliative mitral valve surgeries and medication therapies for secondary non-ischemic mitral regurgitation. Methods The clinical data of patients with non-ischemic functional mitral regurgitation treated in our hospital between 2009 and 2019 were retrospectively analyzed. Patients with a left ventricular ejection fraction (LVEF)<40% underwent a dobutamine stress test, and a positive result was determined when the LVEF improved by more than 15% compared to the baseline value. Positive patients were divided into a surgery group and a medication group. The surgery group underwent surgical mitral valve repair or replacement, while the medication group received simple medication treatment. Follow-up on survival and cardiac function status through outpatient or telephone visits every six months after surgery, and patients underwent cardiac ultrasound examination one year after surgery. The main research endpoint was a composite endpoint of all-cause death, heart failure readmission, and heart transplantation, and the differences in cardiac function and cardiac ultrasound parameters between the two groups were compared. Results Ultimately 41 patients were collected, including 28 males and 13 females with an average age of 55.5±11.1 years. Twenty-five patients were in the surgery group and sixteen patients in the medication group. The median follow-up time was 16 months, ranging 1-96 months. The occurrence of all-cause death in the surgery group was lower than that in the medication group (HR=0.124, 95%CI 0.024-0.641, P=0.034). The difference between the two groups was not statistically significant in the composite endpoint (HR=0.499, 95%CI 0.523-1.631, P=0.229). The New York Heart Association (NYHA) grade of the surgery group was better (NYHA Ⅰ-Ⅱ accounted for 68.0% in the surgury group and 18.8% in the medication group, P<0.01) as well as the grade of mitral valve regurgitation (87.5% of the patients in the medication group had moderate or above regurgitation at follow-up, while all the patients in the surgery group had moderate below regurgitation, P<0.01). There was no statistical difference in preoperative and follow-up changes in echocardiograph parameters between the two groups (P>0.05). Conclusion For non-ischemic functional mitral regurgitation, if the cardiac systolic function is well reserved, mitral valve surgery can improve survival and quality of life compare to simple medication therapy.


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