1.Sonogenetics and its application in military medicine
Ying-Tan ZHUANG ; Bo-Yu LUO ; Xiao-Dong ZHANG ; Tuo-Yu LIU ; Xin-Yue FAN ; Guo-Hua XIA ; Qing YUAN ; Bin ZHENG ; Yue TENG
Medical Journal of Chinese People's Liberation Army 2024;49(3):360-366
Sonogenetics is an emerging synthetic biology technique that uses sound waves to activate mechanosensitive ion channel proteins on the cell surface to regulate cell behavior and function.Due to the widespread presence of mechanically sensitive ion channel systems in cells and the advantages of non-invasion,strong penetrability,high safety and high accuracy of sonogenetics technology,it has great development potential in basic biomedical research and clinical applications,especially in neuronal regulation,tumor mechanism research,sonodynamic therapy and hearing impairment.This review discusses the basic principles of sonogenetics,the development status of sonogenetics and its application in the prevention and treatment of noise-induced hearing loss,summarizes and analyzes the current challenges and future development direction,thus providing a reference for further research and development of sonogenetics in the field of military medicine.
2.Distribution characteristics of sIgE antibodies against four components of egg white in children with egg allergy
Yuanmin SUN ; Xin TAN ; Lisheng ZHENG ; Bei ZHANG ; Xiaohui YANG ; Yang YU ; Huiqiang LI
Chinese Journal of Clinical Laboratory Science 2024;42(1):1-5
Objective To investigate the distribution characteristics of serum sIgE antibodies against four allergenic protein components of egg white in children with egg allergy,and then clarify the clinical application value of single component-resolved diagnostics of egg allergy.Methods Serum samples from 197 children with egg allergy were collected.The levels of serum sIgE antibodies against four major allergenic protein components of egg white,including ovomucin,ovalbumin,ovotransferrin,and lysozyme,were detected by the light-excited chemiluminescence assay(LiCA),and the distribution characteristics of sIgE antibodies were analyzed.Results The positive rates of serum sIgE antibodies against ovalbumin,ovomucin,ovotransferrin,and lysozyme in 197 chlidren with egg allergy were 77.16%(152/197),70.56%(139/197),35.02%(69/197),and 18.27%(36/197),respectively.The positive rate of serum sIgE antibody against both ovomucin and ovalbumin was 30.45%.There was a weak correlation between the levels of sIgE antibodies against egg and the cumulative levels of sIgE antibodies against four allergenic protein components(r=0.266 8,P<0.05).There were signifi-cant individual differences in the levels of serum sIgE antibodies against four allergenic protein components of egg white in the children with egg allergy.Conclusion There is individual heterogeneity in the levels of serum sIgE antibodies against four components of egg white in the children with egg allergy.The detection of sIgE antibodies against egg white components can distinguish different forms of egg allergies,which is of great value for the accurate diagnosis and precise desensitization of children's egg allergy.
3.Investigation,traceability analysis,and discussion of food poisoning caused by Salmonella typhimurium ST19
Shu-Kun YU ; Lang LIU ; Ya-Xin TAN ; Zi-Yan CUI ; Xing-Yu XU ; Zhi-Yang TAO
Chinese Journal of Zoonoses 2024;40(1):82-89
To perform a comprehensive analysis of the pathogenic causes of a food poisoning case in a district of Wuhan Cit-y,we investigated the molecular epidemiological relationships among pathogenic bacteria,to aid in traceability analysis of food-borne disease outbreaks,as well as clinical diagnosis and treatment.The pathogenic bacteria in this food poisoning case were i-solated and identified according to GB789.4-2016.The isolated strains were subjected to genotyping with pulsed field gel elec-trophoresis(PFGE).Drug resistance gene analysis,multi-locus sequence typing(MLST),and genome-wide single-nucleotide polymorphism analysis(wgSNP)were conducted via whole genome sequencing(WGS).The evolutionary tree for cluster analy-sis was constructed in fasttree software.Drug susceptibility testing was conducted with the broth microdilution method.A total of 12 strains of Salmonella were detected in seven anal swab samples and two fecal samples from the case,as well as three anal swab samples from unaffected individuals.The serotype of the strains was Salmonella typhimurium.The strain exhibited severe multiple drug resistance,including resistance to amikacin,ampi-cillin,cefazolin,gentamicin,piperacillin,and tetracycline,but susceptibility to other antibiotics.The coincidence rate between drug resistance genes and drug resistance phenotypes was high.PFGE revealed that nine strains from this food poisoning case were highly homologous.WGS revealed that the MLST type was ST19,and varying numbers of SNPs(1-6)were present a-mong strains.The phylogenetic tree revealed nine isolated strains forming a distinct cluster,differing from other Salmonella strains in the database and belonging to a novel clonal branch.The single nucleotide site in the strains was highly homologous to that of GCF in Jiangxi_020221795.1.The food poisoning case was caused by Salmonella typhimurium ST19,and all nine iso-lated strains originated from the same source.The chef is closely connected to this food poisoning case.This strain of Salmo-nella typhimurium belongs to a new clonal branch and exhibits multiple drug resistance.
4.The construction of integrated urban medical groups in China:Typical models,key issues and path optimization
Hua-Wei TAN ; Xin-Yi PENG ; Hui YAO ; Xue-Yu ZHANG ; Le-Ming ZHOU ; Ying-Chun CHEN
Chinese Journal of Health Policy 2024;17(1):9-16
This paper outlines the common aspects of constructing integrated urban medical groups,focusing on governance,organizational restructuring,operational modes,and mechanism synergy.It then delves into the challenges in China's group construction,highlighting issues with power-responsibility alignment,capacity evolution,incentive alignment,and performance evaluation.Finally,the paper suggests strategies to enhance China's compact urban medical groups,focusing on governance reform,capacity building,benefit integration,and performance evaluation.
5.Preparation and Application of Polypyrrole Conductive Hydrogels in Biomedical Field
Kun-Yu REN ; Ru-Min FU ; Yu TIAN ; Xin-Chang KANG ; Lei ZHOU ; Guo-Xin TAN
Chinese Journal of Analytical Chemistry 2024;52(1):1-12
Hydrogel is a kind of material with high water content,good biocompatibility and extracellular matrix-like property,among which polypyrrole(PPy)conductive hydrogels have both physical characteristics and excellent conductivity of hydrogels themselves.Its conductivity can be used to detect electrical signals generated in biological systems and provide electrical stimulation to regulate the activities and functions of cells and tissues.These characteristics make it widely used in the biomedical field.The recent progress of PPy conductive hydrogels in biomedical field was reviewed in this paper.In terms of classification,according to the cross-linking mechanism of PPy and hydrogel matrix,the non-covalent cross-linked PPy conductive hydrogels and covalent cross-linked PPy conductive hydrogels were divided.The applications of PPy conductive hydrogels in the biomedical field(Skin damage repair,nerve repair,myocardial repair and flexible sensing,etc.)were mainly introduced,and the development trend and challenges of PPy conductive hydrogels in the biomedical field were discussed.
6.Safety and efficacy of argatroban combined with antiplatelet therapy for acute mild-to-moderate ischemic stroke with large artery atherosclerosis
Jia YAN ; Shuai YU ; Hongxuan FENG ; Huimin ZHAO ; Xin TAN ; Qian GUI ; Guanhui WU
Journal of Clinical Medicine in Practice 2024;28(19):89-94
Objective To investigate the effectiveness and safety of argatroban combined with antiplatelet therapy in patients with acute mild-to-moderate atherosclerotic cerebral infarction within 72 hours after symptom onset. Methods A total of 452 patients with large atherosclerotic cerebral infarction were enrolled and divided into two groups. The combined therapy group (
7.Associations between the diet-related inflammation indices and digestive system cancer:a narrative review of epidemiological studies
Jing-Yu TAN ; Yan ZHANG ; Jun CHEN ; Dan-Ni YANG ; Yi-Xin ZOU ; Wan-Shui YANG ; Yong-Bing XIANG
Fudan University Journal of Medical Sciences 2024;51(3):404-414
The inflammatory effect of dietary is strongly related to the development of cancer,therefore,the diet-related inflammatory index was developed as a methodological tool to investigate the relationship between dietary,inflammation and tumors.In this paper,we summarized the results on diet-related inflammatory indices and common cancers of the digestive system based on relevant cancer epidemiological studies.The available epidemiological evidence suggests that pro-inflammatory diet is associated with an increased risk of gastrointestinal malignancies,with the strongest association with colorectal cancer,followed by esophageal and gastric cancers,and then pancreatic cancer,and the least evidence of studies with liver cancer.Among these studies,the level of evidence for esophageal cancer is lower than colorectal cancer,the study of gastric cancer has gender differences and problems in adjusting for confounders,and the study of pancreatic cancer has heterogeneous results.In view of the current research progress and deficiencies,prospective studies or population-based cohort studies,as well as strengthening nutritional epidemiological studies related to common tumors such as liver cancer could be considered in the future.This review is expecting to provide basic information and scientific basis for strengthening the related healthy eating behavior promotion in the prevention and control of digestive system tumors.
8.Epidemiological and Clinical Characteristics of Imported Malaria in Wuhan,China,2012-2019
Shu-Kun YU ; Shou-Nan ZHANG ; Li ZHANG ; Yu-Xin WANG ; Ya-Xin TAN ; Sheng WEI ; Zi-Wei SHI ; Kai WU ; Zhi-Yang TAO
Chinese Journal of Zoonoses 2024;40(6):583-589
Although indigenous malaria has been eliminated in Wuhan since 2013,imported malaria remains a potential threat as an infectious source of local malaria transmission.The epidemiological and clinical characteristics of imported malaria are particularly important in areas where local malaria has been eliminated.This study was aimed at analyzing the epidemiological and clinical characteristics of imported malaria in Wuhan from 2012 to 2019,to provide a basis for further improving the preven-tion and control of imported malaria.Patients in Wuhan diagnosed with imported malaria from January 1,2012,to December 31,2019,were included in this study.A case-control study was con-ducted to analyze the features of patients with severe malaria.Uni-variate and multivariate logistic regression was used to identify risk factors for prolonged hospital length of stay(LOS).Among 229 imported malaria cases,212(92.6%)were in Chinese citizens,and most cases were in men(96.5%).The gender ratio is 28:1,and the age of cases is mainly concertrated between 18 and 50 years old(89.1%).More than 80%of patients were mi-grant workers,and most cases were infections from African countries(92.6%).Plasmodium falciparum(80.8%)was the dominant species.Fifty-three severe malaria cases were identified during the study period.Compared with uncomplicated cases,severe cases tended to occur in patients with no history of malaria(P=0.008),patients infected with Plasmodium falciparum(P=0.009),and patients who were initially misdiagnosed(P<0.001).The median LOS was 6 days,and the species of infec-tion(Plasmodium falciparum),the use of antimalarial drugs(group B),antipyretic time(longer than 3 days),and the turn-around time of blood smear microscopy(longer than 3 days)were significantly associated with longer LOS(all P<0.05).Al-though malaria has been eradicated in Wuhan for many years,imported cases continue to pose a threat.Efforts should be made to strengthen malaria knowledge education for outbound personnel.Additionally,medical institutions must enhance diagnosis and treatment capabilities for malaria,and adhere to standardized treatment processes,and the development of drug resistance and occurrence of severe malaria must be prevented.
9.Risk factors and survival of EBV-infected aplastic anemia patients after haploid allogeneic hematopoietic stem cell transplantation
Xin-He ZHANG ; Jia FENG ; Zheng-Wei TAN ; Yue-Chao ZHAO ; Hui-Jin HU ; Jun-Fa CHEN ; Li-Qiang WU ; Qing-Hong YU ; Di-Jiong WU ; Bao-Dong YE ; Wen-Bin LIU
Chinese Journal of Infection Control 2024;23(10):1228-1235
Objective To analyze the risk factors and survival status of Epstein-Barr virus(EBV)infection in pa-tients with aplastic anemia(AA)after haploid allogeneic hematopoietic stem cell transplantation(Haplo-HSCT).Methods Clinical data of 78 AA patients who underwent Haplo-HSCT in the hematology department of a hospital from January 1,2019 to October 31,2022 were analyzed retrospectively.The occurrence and onset time of EBV viremia,EBV-related diseases(EBV diseases),and post-transplant lymphoproliferative disorders(PTLD)were ob-served,risk factors and survival status were analyzed.Results Among the 78 patients,38 were males and 40 were females,with a median age of 33(9-56)years old;53 patients experienced EBV reactivation,with a total inci-dence of 67.9%,and the median time for EBV reactivation was 33(13,416)days after transplantation.Among pa-tients with EBV reactivation,49 cases(62.8%)were simple EBV viremia,2 cases(2.6%)were possible EBV di-seases,and 2 cases(2.6%)were already confirmed EBV diseases(PTLD).Univariate analysis showed that age 1<40 years old at the time of transplantation,umbilical cord blood infusion,occurrence of acute graft-versus-host disease(aGVHD)after transplantation,and concurrent cytomegalovirus(CMV)infection were independent risk fac-tors for EBV reactivation in AA patients after Haplo-HSCT.Multivariate analysis showed that concurrent CMV in-fection was an independent risk factor for EBV reactivation in A A patients after Haplo-HSCT(P=0.048).Ritu-ximab intervention before stem cell reinfusion was a factor affecting the duration of EBV reactivation(P<0.05).The mortality of EBV viremia,EBV diseases,and PTLD alone were 8.2%,50.0%,and 100%,respectively.The 2-year overall survival rate of patients with and without EBV reactivation were 85.3%,and 90.7%,respectively,difference was not statistically significant(P=0.897).However,patients treated with rituximab had 2-year lower survival rate than those who did not use it,with a statistically significant difference(P=0.046).Conclusion EBV reactivation is one of the serious complications in AA patients after Haplo-HSCT,which affects the prognosis and survival of patients.
10.Curative effect of percutaneous microwave ablation therapy on hepatocellular carcinoma survival: a 15-year real-world study
Yanchun LUO ; Manlin LANG ; Wenjia CAI ; Zhiyu HAN ; Fangyi LIU ; Zhigang CHENG ; Xiaoling YU ; Jianping DOU ; Xin LI ; Shuilian TAN ; Xuejuan DONG ; Ping LIANG ; Jie YU
Chinese Journal of Hepatology 2024;32(4):332-339
Objective:To evaluate the long-term efficacy of percutaneous microwave ablation (MWA) therapy for hepatocellular carcinoma.Methods:2054 cases with Barcelona Clinic Liver Cancer (BCLC) stage 0~B at the Fifth Medical Center of the Chinese People's Liberation Army General Hospital from January 2006 to September 2020 were retrospectively collected. All patients were followed up for at least 2 years. The primary endpoint of overall survival and secondary endpoints (tumor-related survival, disease-free survival, and postoperative complications) of patients treated with ultrasound-guided percutaneous MWA were analyzed. Kaplan-Meier method was used for stratified survival rate analysis. Fine-and-Gray competing risk model was used to analyze overall survival.Results:A total of 5 503 HCC nodules [mean tumor diameter (2.6±1.6) cm] underwent 3 908 MWAs between January 2006 and September 2020, with a median follow-up time of 45.6 (24.0 -79.2) months.The technical effectiveness rate of 5 375 tumor nodules was 97.5%. The overall survival rates at 5, 10, and 15-years were 61.6%, 38.8%, and 27.0%, respectively. The tumor-specific survival rates were 67.1%, 47.2%, and 37.7%, respectively. The free tumor survival rates were 25.8%, 15.7%, and 9.9%, respectively. The incidence rate of severe complications was 2.8% (108/3 908). Further analysis showed that the technical effectiveness and survival rate over the passing three time periods from January 2006-2010, 2011-2015, and 2016-September 2020 were significantly increased, with P ?0.001, especially for liver cancer 3.1~5.0 cm ( P ?0.001). Conclusion:Microwave ablation therapy is a safe and effective method for BCLC stage 0-B, with significantly enhanced technical efficacy and survival rate over time.


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