2.Campylobacter fetus subsp. fetus ST20 isolated and identified from the bacteremia patient
Bei WEI ; Fen GAO ; Yue LIU ; Yan ZHONG ; Yanfang LI ; Deju QIN ; Jincheng ZHOU ; Xuebin XU
Chinese Journal of Laboratory Medicine 2024;47(9):1102-1105
A 72-year-old female patient was admitted to the emergency department of Qintang District People′s Hospital of Guigang City in August 2023 due to chills and fever, abdominal distension and pain, diarrhea, cough and shortness of breath for 1 day. She had a history of chronic obstructive and pulmonary heart disease, stage Ⅲ hypertension, and ceftazidime allergy. Clinical diagnosis of acute bacterial infection of chronic obstructive pneumonia was made and levofloxacin combined with piperacillin/tazobactam were given as symptomatic treatment. The blood culture reported Campylobacter fetus after four days, and the patient was cured and discharged after seven days with negative blood culture. The morphology and mass spectrometry identification of the strain were consistent with the definition of Campylobacter fetus. Whole genome sequencing predicted the multi-site sequence type as Campylobacter fetus subsp. fetus( Cff) ST20, carrying the tetracycline resistance gene tet (O/M/O), 18 flagella genes (including rpoN gene from Campylobacter jejuni. these genes were not found in the other two Campylobacter fetus subspecies), and six virulence genes (including like-typhoidal toxin and typhoid toxin genes). The pathogen has the ecological characteristics of parasitic farmed animal colonization and the biological characteristics of high mobility and virulence. These attributes facilitated its entry into the bloodstream via the fecal-oral route, leading to invasive infections.
3.Geometric Shape Validation of Knee Statistical Shape Model
Huabing DUAN ; Xuelian GU ; Xiaohu LI ; Jincheng ZHOU ; Yihao CHANG ; Jie WANG ; Xiaochen GUO
Journal of Medical Biomechanics 2024;39(2):243-249
Objective To obtain the range of anatomical parameters of healthy knee joints in Chinese males and validate a statistical shape model(SSM)based on the geometric shape of a healthy knee to provide references for the design of knee SSM-based prostheses.Methods Computed tomography(CT)images of knee joints from 112 healthy males were acquired to build three-dimensional(3D)knee joint models.Each model was the target model separately,and the remaining models were used as the training set for principal component analysis(PCA).The obtained knee SSM was fitted to the target model to predict the SSM.The exact anatomical measurement points were marked on the sample and SSM prediction models,and 17 linear and 3 angular parameters were derived.The values of the anatomical parameters were statistically tested using an independent samples t-test and Mann-Whitney U-test,and the validity of the SSM in terms of geometric shape was demonstrated if the resulting P-values were all greater than 0.05.Results Qualitative and quantitative comparative analyses of anatomical parameters showed that the mean deviation of linear parameters was less than 6 mm,and that of angular parameters was less than 2.5°.The results of statistical tests showed P>0.05 for all anatomical parameters,proving that the knee SSM prediction model was not statistically different from the true healthy model in terms of geometric shape.Conclusions This study derived a reference range of anatomical parameters for a healthy knee and demonstrated that the knee SSM model was consistent with the real healthy model in terms of shape.The results provide a reference for the design of knee SSM-based prostheses.
4.Epidemiological characteristics of syphilis in Yangzhou from 2013 to 2023
Chun XU ; Jincheng LI ; Wenbin YANG ; Yan JIANG ; Kejiao YANG ; Tianqi ZHOU ; Jiaye LIU
Journal of Clinical Medicine in Practice 2024;28(21):22-27
Objective To analyze the epidemiological characteristics of syphilis in Yangzhou City from 2013 to 2023, to understand the syphilis epidemic trends, and provide a scientific basis for formulating prevention and control strategies. Methods Syphilis case reports in Yangzhou City from 2013 to 2023 were collected through the infectious disease surveillance module of the Chinese Center for Disease Control and Prevention Information System. The annual average reported incidence rate and annual average growth rate were calculated. Descriptive epidemiological methods were employed to analyze the overview of syphilis and its temporal, geographical and demographic distribution characteristics. Linear trend chi-square tests were conducted to analyze the syphilis epidemic trends. Results A total of 19, 457 syphilis cases were reported in Yangzhou City from 2013 to 2023, with an annual average reported incidence rate of 39.17/100, 000. The overall incidence of syphilis showed an upward trend, with the reported incidence rate increasing from 37.26/100, 000 in 2013 to 43.27/100, 000 in 2023 (
5.Research progress on ferroptosis in the treatment of oral cancer
TIAN Xiuyun ; ZHANG Pei ; HUANG Qingyang ; ZHOU Meiyun ; LUO Bin ; CHEN Xinru ; XU Jincheng
Journal of Prevention and Treatment for Stomatological Diseases 2023;31(3):217-222
Ferroptosis is a newly discovered method of programmed cell death. Current studies have shown that activation of ferroptosis-related pathways can inhibit the growth and proliferation of tumor cells and reverse their drug resistance. Oral cancer is a common malignant tumor with a high recurrence rate and high drug resistance. Inducing ferroptosis is a potential treatment strategy. There are still many uncertainties in the application of ferroptosis in the treatment of oral cancer, which need to be further explored. This article systematically introduces the mechanism of ferroptosis and its recent progress in oral cancer treatment to provide new mechanisms and methods for the clinical treatment of oral cancer. Current research shows that the mechanism of ferroptosis is mainly related to amino acid metabolism, Fe2+ metabolism, and lipid metabolism. Ferroptosis in oral cancer cells can reverse drug resistance in cancer cells and improve the activity of immune cells. New drugs, such as curcumin analogs and triptolide, can induce ferroptosis in oral cancer, and the development of nanomaterials has improved the utilization rate of drugs. Inhibiting the expression of the ferroptosis-related factors SLC7A11, NF-E2-related factor 2 (Nrf2), and ferritin heavy chain 1 (FTH1) can promote ferroptosis in oral cancer cells. It is a potential target for the clinical treatment of oral cancer, but its translation into clinical practice still needs further research.
6.Efficacy and safety of LY01005 versus goserelin implant in Chinese patients with prostate cancer: A multicenter, randomized, open-label, phase III, non-inferiority trial.
Chengyuan GU ; Zengjun WANG ; Tianxin LIN ; Zhiyu LIU ; Weiqing HAN ; Xuhui ZHANG ; Chao LIANG ; Hao LIU ; Yang YU ; Zhenzhou XU ; Shuang LIU ; Jingen WANG ; Linghua JIA ; Xin YAO ; Wenfeng LIAO ; Cheng FU ; Zhaohui TAN ; Guohua HE ; Guoxi ZHU ; Rui FAN ; Wenzeng YANG ; Xin CHEN ; Zhizhong LIU ; Liqiang ZHONG ; Benkang SHI ; Degang DING ; Shubo CHEN ; Junli WEI ; Xudong YAO ; Ming CHEN ; Zhanpeng LU ; Qun XIE ; Zhiquan HU ; Yinhuai WANG ; Hongqian GUO ; Tiwu FAN ; Zhaozhao LIANG ; Peng CHEN ; Wei WANG ; Tao XU ; Chunsheng LI ; Jinchun XING ; Hong LIAO ; Dalin HE ; Zhibin WU ; Jiandi YU ; Zhongwen FENG ; Mengxiang YANG ; Qifeng DOU ; Quan ZENG ; Yuanwei LI ; Xin GOU ; Guangchen ZHOU ; Xiaofeng WANG ; Rujian ZHU ; Zhonghua ZHANG ; Bo ZHANG ; Wanlong TAN ; Xueling QU ; Hongliang SUN ; Tianyi GAN ; Dingwei YE
Chinese Medical Journal 2023;136(10):1207-1215
BACKGROUND:
LY01005 (Goserelin acetate sustained-release microsphere injection) is a modified gonadotropin-releasing hormone (GnRH) agonist injected monthly. This phase III trial study aimed to evaluated the efficacy and safety of LY01005 in Chinese patients with prostate cancer.
METHODS:
We conducted a randomized controlled, open-label, non-inferiority trial across 49 sites in China. This study included 290 patients with prostate cancer who received either LY01005 or goserelin implants every 28 days for three injections. The primary efficacy endpoints were the percentage of patients with testosterone suppression ≤50 ng/dL at day 29 and the cumulative probability of testosterone ≤50 ng/dL from day 29 to 85. Non-inferiority was prespecified at a margin of -10%. Secondary endpoints included significant castration (≤20 ng/dL), testosterone surge within 72 h following repeated dosing, and changes in luteinizing hormone, follicle-stimulating hormone, and prostate specific antigen levels.
RESULTS:
On day 29, in the LY01005 and goserelin implant groups, testosterone concentrations fell below medical-castration levels in 99.3% (142/143) and 100% (140/140) of patients, respectively, with a difference of -0.7% (95% confidence interval [CI], -3.9% to 2.0%) between the two groups. The cumulative probabilities of maintaining castration from days 29 to 85 were 99.3% and 97.8%, respectively, with a between-group difference of 1.5% (95% CI, -1.3% to 4.4%). Both results met the criterion for non-inferiority. Secondary endpoints were similar between groups. Both treatments were well-tolerated. LY01005 was associated with fewer injection-site reactions than the goserelin implant (0% vs . 1.4% [2/145]).
CONCLUSION:
LY01005 is as effective as goserelin implants in reducing testosterone to castration levels, with a similar safety profile.
TRIAL REGISTRATION
ClinicalTrials.gov, NCT04563936.
Humans
;
Male
;
Antineoplastic Agents, Hormonal/therapeutic use*
;
East Asian People
;
Gonadotropin-Releasing Hormone/agonists*
;
Goserelin/therapeutic use*
;
Prostate-Specific Antigen
;
Prostatic Neoplasms/drug therapy*
;
Testosterone
7.Finite element analysis of five internal fixation modes in treatment of Day type Ⅱcrescent fracture dislocation of pelvis.
Xuan PEI ; Jincheng HUANG ; Shenglong QIAN ; Wei ZHOU ; Xi KE ; Guodong WANG ; Jianyin LEI ; Ximing LIU
Chinese Journal of Reparative and Reconstructive Surgery 2023;37(10):1205-1213
OBJECTIVE:
To compare the biomechanical differences among the five internal fixation modes in treatment of Day type Ⅱ crescent fracture dislocation of pelvis (CFDP), and find an internal fixation mode which was the most consistent with mechanical principles.
METHODS:
Based on the pelvic CT data of a healthy adult male volunteer, a Day type Ⅱ CFDP finite element model was established by using Mimics 17.0, ANSYS 12.0-ICEM, Abaqus 2020, and SolidWorks 2012 softwares. After verifying the validity of the finite element model by comparing the anatomical parameters with the three-dimensional reconstruction model and the mechanical validity verification, the fracture and dislocated joint of models were fixed with S 1 sacroiliac screw combined with 1 LC-Ⅱ screw (S 1+LC-Ⅱ group), S 1 sacroiliac screw combined with 2 LC-Ⅱ screws (S 1+2LC-Ⅱ group), S 1 sacroiliac screw combined with 2 posterior iliac screws (S 1+2PIS group), S 1 and S 2 sacroiliac screws combined with 1 LC-Ⅱ screw (S 1+S 2+LC-Ⅱ group), S 2-alar-iliac (S 2AI) screw combined with 1 LC-Ⅱ screw (S 2AI+LC-Ⅱ group), respectively. After each internal fixation model was loaded with a force of 600 N in the standing position, the maximum displacement of the crescent fracture fragments, the maximum stress of the internal fixation (the maximum stress of the screw at the ilium fracture and the maximum stress of the screw at the sacroiliac joint), sacroiliac joint displacement, and bone stress distribution around internal fixation were observed in 5 groups.
RESULTS:
The finite element model in this study has been verified to be effective. After loading 600 N stress, there was a certain displacement of the crescent fracture of pelvis in each internal fixation model, among which the S 1+LC-Ⅱ group was the largest, the S 1+2LC-Ⅱ group and the S 1+2PIS group were the smallest. The maximum stress of the internal fixation mainly concentrated at the sacroiliac joint and the fracture line of crescent fracture. The maximum stress of the screw at the sacroiliac joint was the largest in the S 1+LC-Ⅱ group and the smallest in the S 2AI+LC-Ⅱ group. The maximum stress of the screw at the ilium fracture was the largest in the S 1+2PIS group and the smallest in the S 1+2LC-Ⅱ group. The displacement of the sacroiliac joint was the largest in the S 1+LC-Ⅱ group and the smallest in the S 1+S 2+LC-Ⅱ group. In each internal fixation model, the maximum stress around the sacroiliac screws concentrated on the contact surface between the screw and the cortical bone, the maximum stress around the screws at the iliac bone concentrated on the cancellous bone of the fracture line, and the maximum stress around the S 2AI screw concentrated on the cancellous bone on the iliac side. The maximum bone stress around the screws at the sacroiliac joint was the largest in the S 1+LC-Ⅱ group and the smallest in the S 2AI+LC-Ⅱ group. The maximum bone stress around the screws at the ilium was the largest in the S 1+2PIS group and the smallest in the S 1+LC-Ⅱ group.
CONCLUSION
For the treatment of Day type Ⅱ CFDP, it is recommended to choose S 1 sacroiliac screw combined with 1 LC-Ⅱ screw for internal fixation, which can achieve a firm fixation effect without increasing the number of screws.
Adult
;
Male
;
Humans
;
Finite Element Analysis
;
Fracture Fixation, Internal/methods*
;
Fractures, Bone/surgery*
;
Pelvis
;
Spinal Fractures/surgery*
;
Fracture Dislocation/surgery*
;
Joint Dislocations/surgery*
;
Biomechanical Phenomena
8.Awareness of HIV non-occupational post-exposure prophylaxis among residents in Yangzhou City
ZHANG Qian ; LUO Dewei ; ZHOU Le ; YANG Huimin ; YANG Wenbin ; LIU Yan ; LI Jincheng
Journal of Preventive Medicine 2023;35(12):1093-1096
Objective:
To investigate the awareness of HIV non-occupational post-exposure prophylaxis (nPEP) among residents in Yangzhou City, Jiangsu Province, so as to provide basis for further publicity and application of nPEP in genenral population.
Methods:
Community residents at ages of 18 years and older in Yangzhou City were sampled using the multi-stage random sampling method from January to June, 2022, and a cross-sectional survey was conducted to collect their demographic information, acquired immune deficiency syndrome (AIDS)-related knowledge, attitude and behaviors and awareness of nPEP. A multivariable logistic regression model was used to identify factors affecting awareness of nPEP.
Results:
Totally 1 488 questionnaires were allocated, and 1 447 valid questionnaires were recovered, with an effective recovery rate of 97.24%. There were 644 males and 803 females, with mean age of (36.33±11.90) years. There were 585 residents (40.43%) employed by government agencies, enterprises and public institutions; 750 residents (51.83%) with awareness of AIDS; 413 (28.54%), 651 (44.99%) and 383 residents (26.47%) had low, medium and high levels of AIDS discrimination, respectively; 201 residents (13.89%) with HIV detection experience; and 792 residents (54.73%) with regular health checkup. The awareness rate of nPEP was 47.89%. Multivariable logistic regression analysis identified career (government agencies, enterprises and public institutions, OR=1.530, 95%CI: 1.170-1.999; students, OR=1.450, 95%CI: 1.027-2.047), awareness of AIDS (OR=3.201, 95%CI: 2.495-4.106), having HIV detection experience (OR=1.908, 95%CI: 1.339-2.719), regular health checkup (OR=2.308, 95%CI:1.807-2.949) and discrimination against AIDS (medium, OR=0.703, 95%CI: 0.532-0.928; high, OR=0.699, 95%CI: 0.502-0.974) as factors affecting awareness of nPEP.
Conclusions
The awareness of nPEP among residents in Yangzhou City needs to be improved. Employees in government agencies, enterprises and public institutions and students have higher awareness of nPEP.
9.Experience of Professor Hu Jingqing in Treating Pathogenesis of Intermingled Phlegm and Blood Stasis by using Purgative Method
Jincheng WANG ; Conghui ZHOU ; Yan YANG ; Jingqing HU
World Science and Technology-Modernization of Traditional Chinese Medicine 2023;25(9):2924-2928
Summarize the professor Hu Jingqing's experience in treating pathogenesis of intermingled phlegm and blood stasis by using purgative method.Intermingled phlegm and blood stasis is one of the most important pathogenesis of many difficult diseases in the contemporary era.From the perspective of TCM theory,the purgative method can dissipate phlegm,eliminate blood stasis and resolve masses,which is a suitable method for the treatment in pathogenesis of intermingled phlegm and blood stasis.In clinical practice,the professor Hu Jingqing emphasizes the specific classification of pathogenesis of phlegm and blood stasis in diagnosis,using the purgative methods according to different classifications of"excess heat"and"deficiency cold".And make flexible selections of various purgative drugs in prescription.Last but not least,it is suggested that the purgative method also should not be used as the only treating method.
10.Repurposed benzydamine targeting CDK2 suppresses the growth of esophageal squamous cell carcinoma.
Yubing ZHOU ; Xinyu HE ; Yanan JIANG ; Zitong WANG ; Yin YU ; Wenjie WU ; Chenyang ZHANG ; Jincheng LI ; Yaping GUO ; Xinhuan CHEN ; Zhicai LIU ; Jimin ZHAO ; Kangdong LIU ; Zigang DONG
Frontiers of Medicine 2023;17(2):290-303
Esophageal squamous cell carcinoma (ESCC) is one of the leading causes of cancer death worldwide. It is urgent to develop new drugs to improve the prognosis of ESCC patients. Here, we found benzydamine, a locally acting non-steroidal anti-inflammatory drug, had potent cytotoxic effect on ESCC cells. Benzydamine could suppress ESCC proliferation in vivo and in vitro. In terms of mechanism, CDK2 was identified as a target of benzydamine by molecular docking, pull-down assay and in vitro kinase assay. Specifically, benzydamine inhibited the growth of ESCC cells by inhibiting CDK2 activity and affecting downstream phosphorylation of MCM2, c-Myc and Rb, resulting in cell cycle arrest. Our study illustrates that benzydamine inhibits the growth of ESCC cells by downregulating the CDK2 pathway.
Humans
;
Benzydamine
;
Esophageal Neoplasms/drug therapy*
;
Esophageal Squamous Cell Carcinoma/drug therapy*
;
Molecular Docking Simulation
;
Phosphorylation
;
Cell Proliferation
;
Cell Line, Tumor
;
Apoptosis
;
Cyclin-Dependent Kinase 2


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