1.Research hotspots and trends in railway workers' health at home and abroad: A bibliometric analysis
Yan LIU ; Yu JIN ; Xueling CAO ; Lin JIANG ; Kezhi JIN
Journal of Environmental and Occupational Medicine 2024;41(2):184-192
Background The development of railways has a long history, but there is limited research on the health of railway workers at home and abroad. China's high-speed railway development has attracted worldwide attention in recent years, and it is of great significance to study how to promote the health of this occupational population to ensure the safety of railway transportation. Objective To identify development trends and hotspots in the field of railway workers' health at home and abroad. Methods The research literature related to the health of railroad workers dated from January 1, 1973 to December 31, 2022 was searched using the China Knowledge Network Infrastructure (CNKI) and Web of Science Core Collection (WoS) databases. After screening and cleaning, the included literature was subjected to bibliometric analysis by applying CiteSpace 6.1R6 software to visualize and analyze literature co-citation, keyword emergence, and keyword timeline graphs, and by VOSviewer 1.6.19 to visualize and analyze country/region collaboration, keyword co-occurrence, and keyword clustering. Results During the period from 1973 until 2022, a total of 273 Chinese literature and 165 English literature were found to report studies related to the health of railway workers. The Chinese literature began to grow rapidly in 2009 and peaked in 2015, and the number of English literature published in a relatively flat state over the studied period. The country with the most papers indexed by Science Citation Index (SCI) was the United States (58 papers), which also presented the richest international collaborations. The document with the highest domestic citation frequency was published in the Chinese Journal of Mental Health in 1994, and the document with the highest SCI citation frequency was published in the American Journal of Epidemiology in 1994. The keyword co-occurrence analysis showed that the included Chinese literature mainly focused on health checkups, health management, hypertension, mental health, and chronic diseases and their prevalence; the included English literature focused on mortality, lung cancer, epidemiology, and diesel engine exhaust and its exposure. The analysis of emergent words showed that health management, frontline workers, and occupational stress were the topics of interest in Chinese literature in the last five years, while occupational stress, diesel exhaust emissions, and noise exposure were the topics of interest in English literature in the last ten years. The results of the timeline graph analysis suggested that the recent research directions in Chinese literature were health intervention, humanistic care, staff canteens, etc. There were few English-language articles related to this area after 2010. Conclusion The research hotspots of railroad practitioners' health will keep changing with the development of high-speed railways in countries around the world. The outstanding rise of Chinese literature issued in the last decade has been in striking contrast to the slow progress and decreasing of English literature. The Chinese literature has gradually expanded the hotspots from chronic diseases to health management, occupational stress, and sleep disorders.
2.Associations of well-being and sleep quality with occupational stress among locomotive engineers in the Yangtze River Delta region
Yan LIU ; Feng YANG ; Yu JIN ; Huishuan WU ; Xueling CAO ; Yan YIN
Journal of Environmental and Occupational Medicine 2024;41(5):526-532
Background Occupational stress is an important factor affecting the health of working population, wellness is a topic that has received much attention in recent years, and sleep quality and wellness have a certain impact on occupational stress. Objective To understand the current situation of occupational stress among locomotive engineers in in the Yangtze River Delta, explore the influence of well-being and sleep quality on occupational stress, and provide a theoretical basis for occupational stress intervention among locomotive engineers. Methods Sampling was conducted from October to December 2022 using stratified random sampling. The Chinese version of the Brief Occupational Tension Questionnaire based on the Job Demand-Control Model (JDC model), the World Health Organization 5-item Well-Being Index (WHO-5), and the Pittsburgh Sleep Quality Index (PSQI) scale were used to investigate the occupational stress, well-being, and sleep quality of locomotive engineers. Logistic regression was used to analyze the effects of sleep quality and well-being on occupational stress, and additive and multiplicative interaction models were applied to evaluate the interactive effects of well-being and sleep quality on occupational stress. Results A total of 8243 questionnaires were collected from five locomotive companies, and after excluding unqualified questionnaires, a total of 7976 questionnaires were included in the analysis. The number of locomotive engineers in the Yangtze River Delta reporting positive occupational stress was 4633 (58.09%), the number of low-level well-being was 4949 (62.05%), and the number of poor sleep quality was 4129 (51.77%). The distribution of occupational stress varied by age, length of service, region, technical level, nature of vehicle, education, per capita monthly family income, marital status, smoking, drinking, number of exercise sessions per week, quality of sleep, work shifts, and length of commute (P<0.01). The results of logistic regression showed that a lower level of occupational stress was associated with >11000 yuan per capita monthly household income (OR=0.795, 95%CI: 0.656, 0.964), high level of well-being (OR=0.477, 95%CI: 0.430, 0.528), and good sleep quality (OR=0.588, 95%CI: 0.531, 0.651); a higher level of occupational stress was associated with night shifts: 1 or fewer night shifts (OR=1.707, 95%CI: 1.312, 2.221), 2 to 3 night shifts (OR=2.649, 95%CI: 2.111, 3.325), and 4 or more night shifts (OR=2.804, 95%CI: 2.202, 3.571); a higher level of occupational stress was associated with 60 min or more commuting time (OR=1.353, 95%CI: 1.111, 1.646). Regarding interaction between poor sleep quality and low well-being on occupational stress, the relative excess risk ratio (RERI), attributable risk index (API), and synergy index (SI) were 1.451 (1.059, 1.844), 0.417 (0.327, 0.507), and 2.407 (1.787, 3.241), respectively, and the result of the multiplicative interaction was an OR of 1.546 (95%CI: 1.262, 1.893). Conclusion The prevalence of occupational stress among locomotive engineers in the Yangtze River Delta region is generally at a medium level compared with other industries. Good sleep quality reduces the risk of occupational stress to a greater extent than high well-being, and poor sleep quality and low well-being can interact and further increase the risk of occupational stress.
3.Application of microfluidics in anti-infectious immunity
Boyang LIU ; Linjing ZHU ; Fang FANG ; Yan QI ; Xueling CUI
Chinese Journal of Microbiology and Immunology 2024;44(1):34-38
The immune response against infection is a multifaceted process encompassing the activation and migration of diverse immune cells, as well as the clearance of pathogens. The behaviors of immune cells and the identification of pathogens play pivotal roles as indicators for disease diagnosis and prediction. In recent years, the utilization of microfluidic chip technology has gained substantial attention within the areas of biology, pharmacology, and clinical research and diagnosis. This is primarily attributed to the numerous advantages it offers, including miniaturization, enhanced throughput, heightened sensitivity, expedited analysis, and reduced sample consumption. As a result, microfluidic technology has facilitated the development and utilization of immune cell behavioral assays, bacterial growth studies, and drug-screening assays. This paper is to review the application of microfluidic technology in the field of anti-infection immunity research, focusing on the analysis of migratory behavior of innate immune cells, deformation of their nuclei, and rapid identification of pathogenic bacteria and viruses. The primary objective of this review is to advance the application of microfluidic technology in research on both anti-infection immunity and clinical diagnosis.
4.Evaluation on the application effect of "flipped classroom" in general surgery practice teaching
Wen YI ; Chuan YANG ; Ying HE ; Zhengzheng LIU ; Xueling ZHANG ; Kepeng ZHU ; Yi LUO ; Junming YIN ; Li GUO ; Guocheng DU
Chinese Journal of Medical Education Research 2023;22(2):229-231
Objective:To explore the application and practice of "flipped classroom" in the teaching of general surgery interns.Methods:A total of 20 internship groups (3 to 5 people in each group) were randomly selected from the general surgery practice group in the Department of General Surgery of the Second Clinical Medical College of North Sichuan Medical College. They were randomly divided into the flipped group (45 people) and the traditional group (40 people), with 10 subgroups in each group. The flipped group adopted the flipped classroom teaching mode (students' self-study by handing out materials before class, students and teachers' discussion in class, and students and teachers' evaluation after class), while the control group adopted the current conventional teaching mode (students' preview before class, teachers' explanation in class, and teachers' question answering after class). At the end of the teaching, a questionnaire was used to evaluate the participation and completion of each student. The teaching effect was evaluated by medical history collection and case analysis. The participation, completion, and teaching effect between the two groups were compared and analyzed. SPSS 23.0 software was used for t-test and Chi-square test. Results:The participation of the flipped group was better than that of the traditional group [(17.45±1.83) vs. (15.57±1.52)], and the difference was statistically significant ( P < 0.05). There was no statistically significant difference between the flipped group and the traditional group. There was no significant difference in medical history collection scores between the two groups. The case analysis of the flipped group was better than that of the traditional group [(87.30±6.06) vs. (81.50±5.88), P < 0.05]. The questionnaire shows that about 90% of the students think that flipped classroom can improve their interest in learning [96% (43/45)], improve their autonomous learning ability [89% (40/45)], and have better learning effect. At the same time, 78% (35/45) of students think that learning time is too long. Conclusion:The flipped classroom teaching model can improve the teaching participation of general surgery students, improve students' interest in learning, improve their self-learning ability, and improve students' thinking ability of medical record analysis.
5.Qualitative study on psychological experience of cultural confidence among nursing undergraduates
Xueling ZHANG ; Chunling LIU ; Yuan WANG ; Tao LI
Chinese Journal of Modern Nursing 2023;29(5):623-627
Objective:To understand the true feelings of nursing undergraduates about their professional cultural confidence, and to provide reference for nursing educators and managers to formulate ideological and political education programs.Methods:Totally 33 undergraduate nursing students admitted into Guangzhou Medical University in 2020 were selected by purposive sampling from November to December 2020. This study adopted the phenomenological method in qualitative research. Semi-structured group focus interviews were conducted with the nursing undergraduates, and Colaizzi's 7-step analysis was used to analyze the data and refine the themes.Results:The nursing undergraduates showed both positive and negative psychological experience towards nursing culture. Positive experience themes included recognition, acceptance and love, while negative experience themes included conflict, resistance and confusion.Conclusions:This study reveals the psychological experience of nursing undergraduates' cultural confidence in this profession. It is recommended that nursing educators and managers pay attention to and strengthen the positive experience of nursing undergraduates, and devote themselves to ameliorating their negative experience. They should provide targeted education for general culture and nursing culture, help nursing undergraduates establish a positive and stable nursing culture perception, and cultivate their confidence in nursing culture.
6.A qualitative study on the status quo and dilemma of cultural care practice in diabetes specialist nurses
Xue LIAN ; Tao LI ; Xueling ZHANG ; Lianyi HUANG ; Xia LIU
Chinese Journal of Modern Nursing 2023;29(33):4539-4543
Objective:To explore the status quo of diabetes specialist nurses' practice of cultural care and the cultural care dilemma they encountered.Methods:Using descriptive research method, from March to August 2022, 12 diabetes specialist nurses from Class Ⅲ Grade A hospitals in Guangzhou were selected by objective sampling to conduct a one-on-one structured in-depth interview. Colaizzi 7-step analysis method was used to analyze and extract interview data.Results:A total of 3 themes and 10 sub-themes were extracted, including perception of cultural care (lack of understanding of the concept of cultural care), the main contents of cultural care practice (respecting the religious beliefs and customs of diabetes patients, providing language consistency communication for diabetes patients, offering personalized health guidance for diabetes patients, changing diabetes patients' bad health concepts to maintain patients' health, and seeking support systems for diabetes patients), obstacles to practicing cultural care (self-factors, patient factors, environmental factors, organizational management factors) .Conclusions:The diabetes specialist nurses lack the understanding of the concept and content of cultural care, and their cultural care ability is insufficient, but they have implemented some cultural care for diabetes patients in their nursing practice. In view of the cultural care dilemma encountered by this group in clinical work, efforts should be made to solve it through diabetes specialist nurses, relevant experts, hospitals, departments and so on.
7.Single-cell transcriptome analysis reveals the regulatory effects of artesunate on splenic immune cells in polymicrobial sepsis
Jiayun CHEN ; Xueling HE ; Yunmeng BAI ; Jing LIU ; Kwan-Yin WONG ; Lulin XIE ; Qian ZHANG ; Piao LUO ; Peng GAO ; Liwei GU ; Qiuyan GUO ; Guangqing CHENG ; Chen WANG ; Jigang WANG
Journal of Pharmaceutical Analysis 2023;13(7):817-829
Sepsis is characterized by a severe and life-threatening host immune response to polymicrobial infection accompanied by organ dysfunction.Studies on the therapeutic effect and mechanism of immunomod-ulatory drugs on the sepsis-induced hyperinflammatory or immunosuppression states of various im-mune cells remain limited.This study aimed to investigate the protective effects and underlying mechanism of artesunate(ART)on the splenic microenvironment of cecal ligation and puncture-induced sepsis model mice using single-cell RNA sequencing(scRNA-seq)and experimental validations.The scRNA-seq analysis revealed that ART inhibited the activation of pro-inflammatory macrophages recruited during sepsis.ART could restore neutrophils'chemotaxis and immune function in the septic spleen.It inhibited the activation of T regulatory cells but promoted the cytotoxic function of natural killer cells during sepsis.ART also promoted the differentiation and activity of splenic B cells in mice with sepsis.These results indicated that ART could alleviate the inflammatory and/or immunosuppressive states of various immune cells involved in sepsis to balance the immune homeostasis within the host.Overall,this study provided a comprehensive investigation of the regulatory effect of ART on the splenic microenvironment in sepsis,thus contributing to the application of ART as adjunctive therapy for the clinical treatment of sepsis.
8.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
10.Nationwide study of the characteristics of frequent attenders with multiple emergency department attendance patterns.
Pin Pin PEK ; Charla Yanling LAU ; Xueling SIM ; Kelvin Bryan TAN ; Desmond Ren Hao MAO ; Zhenghong LIU ; Andrew Fuwah HO ; Nan LIU ; Marcus Eng Hock ONG
Annals of the Academy of Medicine, Singapore 2022;51(8):483-492
INTRODUCTION:
The burden of frequent attenders (FAs) of emergency departments (EDs) on healthcare resources is underestimated when single-centre analyses do not account for utilisation of multiple EDs by FAs. We aimed to quantify the extent of multiple ED use by FAs and to characterise FAs.
METHODS:
We reviewed nationwide ED attendance in Singapore data from 1 January 2006 to 31 December 2018 (13 years). FAs were defined as patients with ≥4 ED visits in any calendar year. Single ED FAs and multiple ED FAs were patients who attended a single ED exclusively and ≥2 distinct EDs within the year, respectively. Mixed ED FAs were patients who attended a mix of a single ED and multiple EDs in different calendar years. We compared the characteristics of FAs using multivariable logistic regression.
RESULTS:
We identified 200,130 (6.3%) FAs who contributed to1,865,704 visits (19.6%) and 2,959,935 (93.7%) non-FAs who contributed to 7,671,097 visits (80.4%). After missing data were excluded, the study population consisted of 199,283 unique FAs. Nationwide-linked data identified an additional 15.5% FAs and 29.7% FA visits, in addition to data from single centres. Multiple ED FAs and mixed ED FAs were associated with male sex, younger age, Malay or Indian ethnicity, multiple comorbidities, median triage class of higher severity, and a higher frequency of ED use.
CONCLUSION
A nationwide approach is needed to quantify the national FA burden. The multiple comorbidities and higher frequency of ED use associated with FAs who visited multiple EDs and mixed EDs, compared to those who visited a single ED, suggested a higher level of ED burden in these subgroups of patients. The distinct characteristics and needs of each FA subgroup should be considered in future healthcare interventions to reduce FA burden.
Comorbidity
;
Emergency Service, Hospital
;
Ethnicity
;
Humans
;
Logistic Models
;
Male
;
Retrospective Studies
;
Triage

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