1.Genetic characterization of varicella-zoster virus in Dali, Yunnan province, 2023-2024
Fei WANG ; Yanzhe HAO ; Jianbo ZHANG ; Hongxia LI ; Cuiling XU ; Yuxi CAO ; Libo WANG ; Yiman DONG ; Junyan LI ; Liying SHI ; Xiaoguang ZHANG
Chinese Journal of Experimental and Clinical Virology 2025;39(2):195-201
Objective:To analyze the genetic characteristics of the prevalent strains of Varicella-Zoster virus (VZV) in the population of Dali, Yunnan, and to understand its evolutionary status in the population of Dali.Methods:Herpes fluid and 163 sera were collected from 249 patients clinically suspected to have varicella or herpes zoster in the Department of Dermatology of the Second People′s Hospital of Dali city, Yunnan province, China, from 2023 to 2024. The levels of VZV-specific IgG and IgM antibodies in serum were detected using enzyme-linked immunoassay. Viral DNA was extracted from the herpes fluid, and the cycle threshold ( Ct) of the samples was detected using quantitative real-time polymerase chain reaction (qPCR), and some samples with Ct ≦ 22 were selected for sequencing by next-generation sequencing technology (next-generation sequencing). Next-generation sequencing (NGS) was used to obtain 90 whole genome sequences of VZV, and the sequencing result were compared with the sequences of reference strains for multiple sequence comparison and evolutionary analysis. Snapgene was used to translate the nucleotides into amino acids, and the result were compared with the amino acid sequences of the reference strain. Results:Of the 90 VZV whole-genome sequences, one whole-genome sequence was from an adult varicella patient, and the remaining 89 whole-genome sequences were from herpes zoster patients. The serum-specific IgG antibody positivity rate was 99.4%, and the IgM antibody positivity rate was 52.8%. The result of both single nucleotide polymorphism (SNPs) site typing and genome-wide phylogenetic tree analysis showed that 83 of the 90 VZV whole-genome sequences in this study were on the same branch as Clade 2, and 7 VZV whole-genome sequences were on the branch of Clade 9.Conclusions:The main endemic branch in Dali region in 2023-2024 was Clade 2, with the emergence of Clade 9 branch; there were amino acid mutations in the proteins encoded by ORF22 and ORF68 in 83 VZV whole genome sequences of Clade 2 branch, and the mutations did not cause significant changes to the protein structure.
2.Genetic characterization of varicella-zoster virus in Dali, Yunnan province, 2023-2024
Fei WANG ; Yanzhe HAO ; Jianbo ZHANG ; Hongxia LI ; Cuiling XU ; Yuxi CAO ; Libo WANG ; Yiman DONG ; Junyan LI ; Liying SHI ; Xiaoguang ZHANG
Chinese Journal of Experimental and Clinical Virology 2025;39(2):195-201
Objective:To analyze the genetic characteristics of the prevalent strains of Varicella-Zoster virus (VZV) in the population of Dali, Yunnan, and to understand its evolutionary status in the population of Dali.Methods:Herpes fluid and 163 sera were collected from 249 patients clinically suspected to have varicella or herpes zoster in the Department of Dermatology of the Second People′s Hospital of Dali city, Yunnan province, China, from 2023 to 2024. The levels of VZV-specific IgG and IgM antibodies in serum were detected using enzyme-linked immunoassay. Viral DNA was extracted from the herpes fluid, and the cycle threshold ( Ct) of the samples was detected using quantitative real-time polymerase chain reaction (qPCR), and some samples with Ct ≦ 22 were selected for sequencing by next-generation sequencing technology (next-generation sequencing). Next-generation sequencing (NGS) was used to obtain 90 whole genome sequences of VZV, and the sequencing result were compared with the sequences of reference strains for multiple sequence comparison and evolutionary analysis. Snapgene was used to translate the nucleotides into amino acids, and the result were compared with the amino acid sequences of the reference strain. Results:Of the 90 VZV whole-genome sequences, one whole-genome sequence was from an adult varicella patient, and the remaining 89 whole-genome sequences were from herpes zoster patients. The serum-specific IgG antibody positivity rate was 99.4%, and the IgM antibody positivity rate was 52.8%. The result of both single nucleotide polymorphism (SNPs) site typing and genome-wide phylogenetic tree analysis showed that 83 of the 90 VZV whole-genome sequences in this study were on the same branch as Clade 2, and 7 VZV whole-genome sequences were on the branch of Clade 9.Conclusions:The main endemic branch in Dali region in 2023-2024 was Clade 2, with the emergence of Clade 9 branch; there were amino acid mutations in the proteins encoded by ORF22 and ORF68 in 83 VZV whole genome sequences of Clade 2 branch, and the mutations did not cause significant changes to the protein structure.
3.Construction and Thinking of Data Science System of Chronic Atrophic Gastritis
Jianhui SUN ; Weichao XU ; Xia ZHANG ; Runxue SUN ; Yanzhe CHEN ; Shaopo WANG ; Yuman WANG ; Zhen LIU ; Yanru DU ; Qian YANG ; Jianming JIANG
Journal of Traditional Chinese Medicine 2024;65(12):1208-1212
Taking chronic atrophic gastritis (CAG) as an example, the frontier technologies in data science have been introduced into the inheritance, innovation and development of traditional Chinese medicine (TCM), providing reference for conducting real-world clinical research on specialized diseases of TCM. This paper put forward the construction of CAG data science system by elaborating the connotation of data science and its application value in TCM, and discussed the path to build CAG data science system, namely through "data acquisition-knowledge expression-knowledge reasoning" to establish CAG database, knowledge base and develop diagnosis platform differentiating diseases and syndromes. Besides, this paper analyzed the prospects of CAG data science in improving data governance ability and knowledge discovery efficiency, deepening the level of knowledge sharing, promoting interdisciplinary integration, and strengthening the integration process of industry, academia and research.
4.Diagnostic utility of electromagnetic navigation bronchoscopy combined with radial endobronchial ultrasound in peripheral pulmonary lesions
Min YU ; Shenyun SHI ; Yan LI ; Yanzhe YU ; Tingting ZHAO ; Qingqing XU ; Qi ZHAO ; Jingjing DING ; Anning FENG ; Jinghong DAI ; Yonglong XIAO
Chinese Journal of Clinical Thoracic and Cardiovascular Surgery 2022;29(01):44-49
Objective To investigate the diagnostic value and safety of electromagnetic navigation bronchoscopy combined with radial endobronchial ultrasound in peripheral pulmonary nodules. Methods The clinical imaging, surgical and pathological data of 60 patients with 76 peripheral pulmonary nodules who underwent electromagnetic navigation bronchoscopy combined with radial endobronchial ultrasound guided biopsy in the Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School from June 2020 to June 2021 were retrospectively analyzed. The diagnosis rate and complications were analyzed and summarized. The 76 pulmonary nodules were divided into a small pulmonary nodules group (10 nodules, diameter≤1 cm) and a pulmonary nodules group (1 cm
5.Research progress on liver injury in acute pancreatitis
Yanzhe XU ; Youming DING ; Bin WANG ; Junhui XU
Chinese Journal of Hepatobiliary Surgery 2015;21(4):284-288
Considerable clinical and experimental evidence supports that liver injury in acute pancreatitis (AP) is a sign for the potential progression to systemic inflammatory reaction.The Kupffer cells,various cytokines and macrophage migration inhibitory factor (MIF) play important roles in the pathogenesis of AP associated liver injury.However,the specific molecular mechanism of the liver damage remains uncertain.Therefore,efforts should be made to clarify the regulatory mechanism and related cell signaling disorders of liver injury in AP,which could not only identify novel therapeutic targets,but also provide new insight into improving the clinical treatment.Here our review discusses the recent research progress on the etiology,pathology and diagnosis and treatments of liver injury in AP.
6.Combining chemoembolization using microspheres with iodized oil in the treatment of hepatocellular carcinoma: a Meta-analysis of randomized controlled trials
Yanzhe XU ; Youming DING ; Yang YANG
Chinese Journal of Hepatobiliary Surgery 2014;20(1):24-28
Objective To evaluate the therapeutic effectiveness and safety of combining chemoembolization using microspheres with iodized oil in the treatment of patients with hepatocellular cancer.Methods According to the inclusion and exclusion criteria,two reviewers independently completed the whole process of data search,selection,collection and quality assessment.The Medline,Cancer Lit,PUBMED,EMBASE,Cochrane Library,CNKI,CBM,VIP,Wanfang Data and Grey literature were searched for randomized controlled trails (RCTs) on combining chemoembolization using microspheres with iodized oil in the treatment of liver cancer.The search was from January 2005 to December 2012.The software package Rev Man 5.1 (the Cochrane collaboration) was used to conduct the Meta-analysis and to analyze the data.Results Of the 159 trials selected out from January 2005 and December 2012 for review,only five RCT involving 471 patients were finally included into the analysis.When compared with chemoembolization by iodized oil alone,the combination treatment significantly improved the therapeutic effectiveness (CR + PR).However,there was no obvious difference between the two methods of treatment in the incidence of adverse reaction.Conclusions Combining chemoembolization using microspheres with iodized oil for patients with hepatocellular cancer was effective in controlling liver cancer progression.There is still a need to reduce the incidence of adverse reaction in future.
7.The mechanics analysis and clinical application of molar distalization with micro-implant combining with utility arch.
West China Journal of Stomatology 2013;31(3):320-322
Combined with a case, the mechanical analysis and clinical application of micro-implant combining with utility arch were introduced in this paper.
Humans
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Maxilla
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Molar
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Orthodontic Appliance Design
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Orthodontic Wires
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Tooth Movement Techniques
8.Impact of low-carbohydrate diet on the clinical indicators of non-alcoholic fatty liver disease
Junhui XU ; Youming DING ; Bin WANG ; Haifeng FU ; Yanzhe XU
Chinese Journal of Clinical Nutrition 2013;21(5):287-291
Objective To investigate the effects of low carbohydrate diet in treating non-alcoholic fatty liver disease (NAFLD) patients.Methods 58 male NAFLD patients selected in Renmin Hospital of Wuhan University from September 2010 to October 2012 were divided with random number table into low-carbohydrate diet group (L group,n =31) and medium-carbohydrate diet group (M group,n =27).Waistline,weight,serum glucose level,insulin secretion,glutamic-pyruvic transaminase (ALT),aspartate transaminase (AST)、high-density lipoprotein (HDL),low-density lipoprotein (LDL),total cholesterol (TC),and triglyceride (TG) of the patients were measured.Results Six patients were excluded from this research,2 in L group and 4 in M group.After 6-week's dietary intervention,blood glucose level and insulin secretion were significantly lower in L group than in M group [(4.3±1.4) mol/Lvs.(5.0±0.9) mol/L,P=0.004; (6.1 ±1.5) U/mlvs.(8.9 ± 1.4) U/ml,P =0.001].The levels of ALT and AST in L group were significantly lower than those in Mgroup[(30.23±3.34) U/Lvs.(42.33±4.46) U/L,P=0.003; (31.19±4.13) U/Lvs.(45.21±3.73) U/L,P =0.001].The levels of LDL and TG in L group were also significantly lower than those in M group [(1.13±0.22) mmol/Lvs.(2.71±0.67) mmol/L,P=0.001; (0.99±0.74) mmol/Lvs.(1.42±1.06) mmol/L,P =0.001].Conclusion In NAFLD patients,low-carbohydrate diet can improve blood glucose level,insulin secretion,liver function,and lipid metabolism disorders.

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