1.Effects of apixaban on cardiac function,serum levels of sST2,FGF-23 and inflammatory factors in patients with atrial fibrillation and coronary artery disease
Chao-peng JIANG ; Ping CUI ; Gui-liang SHI ; Hong-qiang ZHANG ; Chen-xian GUO
Chinese Journal of cardiovascular Rehabilitation Medicine 2025;34(5):640-645
Objective:To investigate the effects of apixaban on cardiac function,serum levels of soluble suppression of tumorigenicity 2(sST2),fibroblast growth factor-23(FGF-23)and inflammatory factors in patients with atrial fibrillation(AF)and coronary artery disease(CAD).Methods:This randomized controlled study enrolled 120 pa-tients with AF and CAD who admitted Changzhou Wujin Hospital of Traditional Chinese Medicine between July 2022 and December 2023.Patients were randomly divided into control group(n=60,warfarin therapy)and inter-vention group(n=60,apixaban therapy).Each group received corresponding medication based on routine therapy for 8 weeks.Cardiac function indicators,levels of serum sST2,FGF-23,inflammatory factors,myocardial fibrosis indicators,and incidence of adverse reactions were compared between the two groups.Results:Compared to those in the control group,participants in the intervention group had significantly higher left ventricular ejection fraction(LVEF)[(52.22±3.69)%vs.(48.37±4.14)%]and 6-minute walking distance(6MWD)[(456.29±56.47)m vs.(415.25±11.32)m](P<0.001 all),and significantly lower left ventricular end-diastolic diameter(LVEDd)[(44.98±4.55)mm vs.(50.26±3.61)mm],levels of N-terminal pro B-type natriuretic peptide(NT-proB-NP)[(341.16±29.51)pg/ml vs.(392.33±32.27)pg/ml],cardiac troponin I(cTnI)[(3.76±1.12)ng/ml vs.(5.22±1.36)ng/ml],creatine kinase isoenzyme-MB(CK-MB)[(25.71±6.51)U/L vs.(39.13±6.33)U/L],high sensitive C-reactive protein(hsCRP)[(1.63±0.51)mg/L vs.(1.98±0.46)mg/L],tumor necrosis fac-tor-alpha(TNF-α)[(27.17±5.11)ng/Lvs.(34.19±5.32)ng/L],sST2[(52.11±5.87)μg/L vs.(62.37±5.82)μg/L]and FGF-23[(45.73±4.29)μg/L vs.(56.09±5.25)μg/L](P<0.001 all).We detected signifi-cant lower incidence of adverse reactions in intervention group compared to control group(6.9%vs.26.3%,P=0.005).Conclusion:Apixaban could alleviate myocardial fibrosis,improve cardiac function,and reduce levels of heart failure biomarkers and inflammatory factors in patients with coronary artery disease and atrial fibrillation.
2.The predictive value of systemic immune inflammation index for pathological complete remission of triple negative breast cancer
Huan JIE ; Shirong ZHANG ; Chunna GUO ; Qiang LIU ; Danping JIANG ; Ruiwen LI ; Songbai WANG
Chinese Journal of Postgraduates of Medicine 2025;48(10):945-948
Objective:To investigate the predictive value of systemic immune inflammation index for the efficacyof neoadjuvant chemotherapy in triple negative breast cancer patients, and analyzed the relationship between pathological complete response (pCR) and prognosis.Methods:The clinical data of 146 patients with triple-negative breast cancer admitted to the 926th Hospital of the Joint Service Support Force of the PLA from January 2018 to December 2020 were retrospectively collected. All patients received neoadjuvant chemotherapy. After chemotherapy, the patients were divided into pCR group (62 cases) and non-pCR group (84 cases) according to whether the patients achieved pCR. Pathological characteristics and systemic immunoinflammatory index levels of the two groups were compared. Receiver operating characteristic (ROC) curve was used to analyze the predictive value of systemic immunoinflammatory index for pCR after neoadjuvant chemotherapy in patients with triple-negative breast cancer, and survival curves were drawn to compare the disease-free survival of the two groups.Results:The rate of axillary lymph node metastasis in pCR group was lower than that in non-pCR group: 37.10% (23/62) vs. 64.29% (54/84), there was statistical difference ( χ2 = 10.58, P<0.01). There were no significant differences in TNM stage, Ki-67 level and histological grade between the two groups ( P>0.05). Compared with the non -pCR group, the systemic immune inflammation index in the pCR group was significantly reduced: 617.42 ± 166.40 vs. 853.67 ± 202.41, P<0.01. Systemic immune inflammation index was valuable in predicting non-pCR of triple negative breast cancer patients after neoadjuvant chemotherapy, and the area under the curve was 0.807 (95% CI: 0.738 - 0.875, P<0.01). Compared with the non-pCR group, the disease-free survival of patients in the pCR group was significantly prolonged ( P = 0.033). Conclusions:Systemic immune inflammation index was related to the efficacy of neoadjuvant chemotherapy in triple negative breast cancer patients, and can be used as a biological indicator to predict the efficacy of neoadjuvant chemotherapy in triple negative breast cancer.
3.Lymph node metastasis in the prostatic anterior fat pad and prognosis after robot-assisted radical prostatectomy
Zhou-jie YE ; Yong SONG ; Jin-peng SHAO ; Wen-zheng CHEN ; Guo-qiang YANG ; Qing-shan DU ; Kan LIU ; Jie ZHU ; Bao-jun WANG ; Jiang-ping GAO ; Wei-jun FU
National Journal of Andrology 2025;31(3):216-221
Objective:To investigate lymph node metastasis(LNM)in the prostatic anterior fat pad(PAFP)of PCa patients after robot-assisted radical prostatectomy(RARP),and analyze the clinicopathological features and prognosis of LNM in the PAFP.Methods:We retrospectively analyzed the clinicopathological data on 1 003 cases of PCa treated by RARP in the Department of Urolo-gy of PLA General Hospital from January 2017 to December 2022.All the patients underwent routine removal of the PAFP during RARP and pathological examination,with the results of all the specimens examined and reported by pathologists.Based on the pres-ence and locations of LNM,we grouped the patients for statistical analysis,compared the clinicopathological features between different groups using the Student's t,Mann-Whitney U and Chi-square tests,and conducted survival analyses using the Kaplan-Meier and Log-rank methods and survival curves generated by Rstudio.Results:Lymph nodes were detected in 77(7.7%)of the 1 003 PAFP samples,and LNM in 11(14.3%)of the 77 cases,with a positive rate of 1.1%(11/1 003).Of the 11 positive cases,9 were found in the upgraded pathological N stage,and the other 2 complicated by pelvic LNM.The patients with postoperative pathological stage≥T3 constituted a significantly higher proportion in the PAFP LNM than in the non-PAFP LNM group(81.8%[9/11]vs 36.2%[359/992],P=0.005),and so did the cases with Gleason score ≥8(87.5%[7/8]vs 35.5%[279/786],P=0.009).No statisti-cally significant differences were observed in the clinicopathological features and biochemical recurrence-free survival between the pa-tients with PAFP LNM only and those with pelvic LNM only.Conclusion:The PAFP is a potential route to LNM,and patients with LNM in the PAFP are characterized by poor pathological features.There is no statistically significant difference in biochemical recur-rence-free survival between the patients with PAFP LNM only and those with pelvic LNM only.Routine removal of the PAFP and inde-pendent pathological examination of the specimen during RARP is of great clinical significance.
4.Effects of apixaban on cardiac function,serum levels of sST2,FGF-23 and inflammatory factors in patients with atrial fibrillation and coronary artery disease
Chao-peng JIANG ; Ping CUI ; Gui-liang SHI ; Hong-qiang ZHANG ; Chen-xian GUO
Chinese Journal of cardiovascular Rehabilitation Medicine 2025;34(5):640-645
Objective:To investigate the effects of apixaban on cardiac function,serum levels of soluble suppression of tumorigenicity 2(sST2),fibroblast growth factor-23(FGF-23)and inflammatory factors in patients with atrial fibrillation(AF)and coronary artery disease(CAD).Methods:This randomized controlled study enrolled 120 pa-tients with AF and CAD who admitted Changzhou Wujin Hospital of Traditional Chinese Medicine between July 2022 and December 2023.Patients were randomly divided into control group(n=60,warfarin therapy)and inter-vention group(n=60,apixaban therapy).Each group received corresponding medication based on routine therapy for 8 weeks.Cardiac function indicators,levels of serum sST2,FGF-23,inflammatory factors,myocardial fibrosis indicators,and incidence of adverse reactions were compared between the two groups.Results:Compared to those in the control group,participants in the intervention group had significantly higher left ventricular ejection fraction(LVEF)[(52.22±3.69)%vs.(48.37±4.14)%]and 6-minute walking distance(6MWD)[(456.29±56.47)m vs.(415.25±11.32)m](P<0.001 all),and significantly lower left ventricular end-diastolic diameter(LVEDd)[(44.98±4.55)mm vs.(50.26±3.61)mm],levels of N-terminal pro B-type natriuretic peptide(NT-proB-NP)[(341.16±29.51)pg/ml vs.(392.33±32.27)pg/ml],cardiac troponin I(cTnI)[(3.76±1.12)ng/ml vs.(5.22±1.36)ng/ml],creatine kinase isoenzyme-MB(CK-MB)[(25.71±6.51)U/L vs.(39.13±6.33)U/L],high sensitive C-reactive protein(hsCRP)[(1.63±0.51)mg/L vs.(1.98±0.46)mg/L],tumor necrosis fac-tor-alpha(TNF-α)[(27.17±5.11)ng/Lvs.(34.19±5.32)ng/L],sST2[(52.11±5.87)μg/L vs.(62.37±5.82)μg/L]and FGF-23[(45.73±4.29)μg/L vs.(56.09±5.25)μg/L](P<0.001 all).We detected signifi-cant lower incidence of adverse reactions in intervention group compared to control group(6.9%vs.26.3%,P=0.005).Conclusion:Apixaban could alleviate myocardial fibrosis,improve cardiac function,and reduce levels of heart failure biomarkers and inflammatory factors in patients with coronary artery disease and atrial fibrillation.
5.Expert consensus on the diagnosis and treatment of cemental tear.
Ye LIANG ; Hongrui LIU ; Chengjia XIE ; Yang YU ; Jinlong SHAO ; Chunxu LV ; Wenyan KANG ; Fuhua YAN ; Yaping PAN ; Faming CHEN ; Yan XU ; Zuomin WANG ; Yao SUN ; Ang LI ; Lili CHEN ; Qingxian LUAN ; Chuanjiang ZHAO ; Zhengguo CAO ; Yi LIU ; Jiang SUN ; Zhongchen SONG ; Lei ZHAO ; Li LIN ; Peihui DING ; Weilian SUN ; Jun WANG ; Jiang LIN ; Guangxun ZHU ; Qi ZHANG ; Lijun LUO ; Jiayin DENG ; Yihuai PAN ; Jin ZHAO ; Aimei SONG ; Hongmei GUO ; Jin ZHANG ; Pingping CUI ; Song GE ; Rui ZHANG ; Xiuyun REN ; Shengbin HUANG ; Xi WEI ; Lihong QIU ; Jing DENG ; Keqing PAN ; Dandan MA ; Hongyu ZHAO ; Dong CHEN ; Liangjun ZHONG ; Gang DING ; Wu CHEN ; Quanchen XU ; Xiaoyu SUN ; Lingqian DU ; Ling LI ; Yijia WANG ; Xiaoyuan LI ; Qiang CHEN ; Hui WANG ; Zheng ZHANG ; Mengmeng LIU ; Chengfei ZHANG ; Xuedong ZHOU ; Shaohua GE
International Journal of Oral Science 2025;17(1):61-61
Cemental tear is a rare and indetectable condition unless obvious clinical signs present with the involvement of surrounding periodontal and periapical tissues. Due to its clinical manifestations similar to common dental issues, such as vertical root fracture, primary endodontic diseases, and periodontal diseases, as well as the low awareness of cemental tear for clinicians, misdiagnosis often occurs. The critical principle for cemental tear treatment is to remove torn fragments, and overlooking fragments leads to futile therapy, which could deteriorate the conditions of the affected teeth. Therefore, accurate diagnosis and subsequent appropriate interventions are vital for managing cemental tear. Novel diagnostic tools, including cone-beam computed tomography (CBCT), microscopes, and enamel matrix derivatives, have improved early detection and management, enhancing tooth retention. The implementation of standardized diagnostic criteria and treatment protocols, combined with improved clinical awareness among dental professionals, serves to mitigate risks of diagnostic errors and suboptimal therapeutic interventions. This expert consensus reviewed the epidemiology, pathogenesis, potential predisposing factors, clinical manifestations, diagnosis, differential diagnosis, treatment, and prognosis of cemental tear, aiming to provide a clinical guideline and facilitate clinicians to have a better understanding of cemental tear.
Humans
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Dental Cementum/injuries*
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Consensus
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Diagnosis, Differential
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Cone-Beam Computed Tomography
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Tooth Fractures/therapy*
6.Innovation and application of traditional Chinese medicine dispensing promoted through integration of whole-process data elements.
Huan-Fei YANG ; Si-Yu LI ; Chen-Qian YU ; Jian-Kun WU ; Fang LIU ; Li-Bin JIANG ; Chun-Jin LI ; Xiang-Fei SU ; Wei-Guo BAI ; Hua-Qiang ZHAI ; Shi-Yuan JIN ; Yong-Yan WANG
China Journal of Chinese Materia Medica 2025;50(11):3189-3196
As a new type of production factor that can empower the development of new quality productivity, the data element is an important engine to promote the high quality development of the industry. Traditional Chinese medicine(TCM) dispensing is the most basic work of TCM clinical pharmacy, and its quality directly affects the clinical efficacy of TCM. The integration of data elements and TCM dispensing can stimulate the innovation and vitality of the TCM dispensing industry and promote the high-quality and sustainable development of the industry. A large-scale, detailed, and systematic study on TCM dispensing was conducted. The innovative practice path of data fusion construction in the whole process of TCM dispensing was investigated by integrating the digital resources "nine full activities" of TCM dispensing, creating the digital dictionary of "TCM clinical information data elements", and exploring innovative applications of TCM dispensing driven by data and technology, so as to promote the standardized, digital, and intelligent development of TCM dispensing in medical health services. The research content of this project was successfully selected as the second batch of "Data element×" typical cases of National Data Administration in 2024, which is the only selected case in the field of TCM.
Medicine, Chinese Traditional/methods*
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Drugs, Chinese Herbal
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Humans
7.Effect of Modified Yiyi Fuzi Baijiang Powder on intestinal mucosal permeability and expression of AQP3, AQP4 in ulcerative colitis rats.
Wen-Xiao LI ; Jiang CHEN ; Zhi-Cheng HE ; Lu-Rong ZHANG ; Guo-Qiang LIANG ; Xing-Xing JIANG ; Yong-Na WEI ; Qin ZHOU
China Journal of Chinese Materia Medica 2025;50(14):3962-3968
This study investigated the therapeutic effects and mechanisms of Modified Yiyi Fuzi Baijiang Powder on ulcerative colitis(UC) in rats from the perspective of dampness. SD rats were randomly allocated into six groups(n=10): control, model, mesalazine, and Modified Yiyi Fuzi Baijiang Powder at low(3.96 g·kg~(-1)·d~(-1)), medium(7.92 g·kg~(-1)·d~(-1)), and high(15.84 g·kg~(-1)·d~(-1)) doses. UC was induced in all groups except the control by administration with 3% dextran sulfate sodium(DSS) solution for 7 days. The disease activity index(DAI) was recorded, and the colon tissue was collected for analysis. Histopathological changes were assessed by hematoxylin-eosin staining. Serum levels of D-lactic acid(D-LA) and diamine oxidase(DAO) were measured by ELISA. Immunohistochemistry and PCR were employed to evaluate the expression of aquaporins(AQP3, AQP4) and tight junction proteins [zonula occludens-1(ZO-1) and occludin] at both protein and mRNA levels. Compared with the control group, the model group showed an increased DAI scores(P<0.05), intestinal mucosal damage, elevated serum levels of DAO and D-LA(P<0.05), and decreased expression of AQP3, AQP4, ZO-1, and occludin(P<0.05). Treatment with Modified Yiyi Fuzi Baijiang Powder reduced the DAI scores(P<0.05), lowered the serum levels of D-LA and DAO(P<0.05), and upregulated the expression of AQP3, AQP4, ZO-1, and occludin at both protein and mRNA levels compared with the model group. These findings suggest that Modified Yiyi Fuzi Baijiang Powder exerts therapeutic effects on UC by reducing the intestinal mucosal permeability, promoting colonic mucosal repair, and regulating abnormal intestinal water metabolism, which may involve the upregulation of AQP3 and AQP4 expression.
Animals
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Colitis, Ulcerative/genetics*
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Drugs, Chinese Herbal/administration & dosage*
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Rats, Sprague-Dawley
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Rats
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Intestinal Mucosa/metabolism*
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Male
;
Aquaporin 3/metabolism*
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Aquaporin 4/metabolism*
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Permeability/drug effects*
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Humans
;
Powders
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Intestinal Barrier Function
8.Analysis of the efficacy of lamb′s tripe extract and vitamin B 12 capsule on chronic atrophic gastritis at different sites
Dongdong XIA ; Huahong XIE ; Bo JIANG ; Hong XU ; Zhanguo NIE ; Chengwei TANG ; Qiang GUO ; Xiaoping ZOU ; Shuisheng SHI ; Tao SUN ; Shourong SHEN ; Guoqing LI ; Xiaozhong GUO ; Xiaoyan ZHAO ; Jiaming QIAN ; Weixing CHEN ; Guiying ZHANG ; Aijun LIAO ; Jingyuan FANG ; Daiming FAN ; Kaichun WU
Chinese Journal of Digestion 2025;45(3):162-168
Objective:To evaluate the efficacy of lamb′s tripe extract and vitamin B 12 capsule (LTEVB 12C) on chronic atrophic gastritis (CAG) at different locations (antrum lesser curvature, antrum greater curvature, gastric angle, corpus lesser curvature, and corpus greater curvature). Methods:From August 2011 to January 2013, 715 patients with CAG in a multicenter, randomized, double-blind, placebo-controlled trial were enrolled from 16 tertiary first-class hospitals across the country, including the First Affiliated Hospital of Air Force Medical University, Nanfang Hospital of Southern Medical University, the First Hospital of Jilin University, West China Hospital of Sichuan University, etc., there were 476 cases in the LTEVB 12C group and 239 cases in the placebo group. The patients of the LTEVB 12C group received LTEVB 12C, and the patients of placebo group received LTEVB 12C mimetic, all the medications were taken 3 capsules each time and 3 times a day after meals, and the treatment course of 2 groups were both 6 months. The efficacy evaluation criteria included the effective rate (a decrease of ≥1 in histopathological score compared with baseline after 6 months of treatment) and the reversal rate (a decrease of ≥ 2 in histopathological score compared with baseline after 6 months of treatment in the patients with moderate to severe CAG). The impact of lesion sites on the therapeutic effects of LTEVB 12C was analyzed by logistic regression analysis. The two-way unordered Cochran-Mantel-Haenszel chi-square test considering the center effect and Pearson chi-square test were used for statistical analysis. Results:The effective rates of chronic inflammation at the antrum greater curvature and corpus greater curvature (23.3%, 110/473 vs. 13.0%, 31/239; 20.3%, 96/472 vs. 12.6%, 30/239), the effective rates of atrophy at the antrum lesser curvature, antrum greater curvature, gastric angle, corpus lesser curvature, and the corpus greater curvature (27.0%, 118/437 vs. 15.7%, 34/216; 29.2%, 126/432 vs. 18.5%, 38/205; 27.8%, 121/435 vs. 16.7%, 36/216; 32.5%, 127/391 vs. 19.8%, 37/187; 33.0%, 119/361 vs. 21.8%, 39/179), and the effective rates of intestinal metaplasia at the antrum lesser curvature, antrum greater curvature, gastric angle, and the corpus lesser curvature (45.0%, 112/249 vs. 29.8%, 31/104; 53.8%, 86/160 vs. 33.9%, 21/62; 45.8%, 103/225 vs. 24.0%, 25/104; 51.9%, 83/160 vs. 28.3%, 17/60) of the LTEVB 12C group were all higher than those of the placebo group, and the differences were statistically significant ( χ2=10.76, 6.39, 9.69, 7.91, 11.05, 9.62, 8.57, 5.20, 7.11, 12.45, and 6.73; all P<0.05). The reversal rates of chronic inflammation at the corpus lesser curvature and corpus greater curvature (5.2%, 12/231 vs. 0, 0/123; 4.7%, 8/170 vs. 0, 0/88), the reversal rates of atrophy at the antrum lesser curvature, antrum greater curvature, corpus lesser curvature, and the corpus greater curvature (6.8%, 22/323 vs. 1.3%, 2/151; 9.2%, 29/315 vs. 1.4%, 2/144; 14.2%, 38/267 vs. 2.5%, 3/121; 20.8%, 35/168 vs. 5.8%, 4/69), and the reversal rates of intestinal metaplasia at the antrum lesser curvature, antrum greater curvature, gastric angle, and the corpus lesser curvature (29.8%, 39/131 vs. 9.1%, 4/44; 41.0%, 32/78 vs. 12.5%, 3/24; 33.3%, 44/132 vs. 4.8%, 3/63; 50.0%, 37/74 vs. 8.7%, 2/23) of the LTEVB 12C group were all higher than those of the placebo group, and the differences were statistically significant ( χ2=6.58, 5.12, 5.60, 8.61, 11.43, 6.59, 7.30, 4.95, 15.92, 7.62; all P<0.05). There were no statistically significant differences in the effective rates and reversal rates of active inflammation at different locations between the LTEVB 12C group and the placebo group (all P>0.05). The results of logistic regression analysis (taking the antrum lesser curvature as the reference) further confirmed that the reversal rates of chronic inflammation ( OR=0.22, 95% confidence interval (95% CI): 0.07 to 0.67; OR=0.24, 95% CI: 0.07 to 0.80), atrophy ( OR=0.28, 95% CI: 0.16 to 0.49; OR=0.28, 95% CI: 0.16 to 0.49), and intestinal metaplasia ( OR=0.42, 95% CI: 0.24 to 0.77; OR=0.20, 95% CI: 0.08 to 0.52) at the corpus lesser curvature and corpus greater curvature were all higher than those at the antrum lesser curvature, and the differences were statistically significant (all P<0.05). There were no statistically siginificant differences in the reversal rates of the aforementioned pathological features between the antrum greater curvature, gastric angle, and the antrum lesser curvature (all P>0.05). Conclusion:LTEVB 12C can achieve good efficacy in the treatment of CAG, and the chronic inflammation, atrophy, and intestinal metaplasia at multiple locations are improved, especially at the corpus lesser curvature and the corpus greater curvature.
9.Structural equation analysis and modeling of fect and ankles WMSDs and its adverse ergonomic factors
Xi ZHANG ; Ning JIA ; Xin SUN ; Meibian ZHANG ; Qing XU ; Huadong ZHANG ; Ruijie LING ; Yimin LIU ; Gang LI ; Yan YIN ; Hua SHAO ; Hengdong ZHANG ; Yanmin QI ; Bing QIU ; Tiebing LIU ; Dayu WANG ; Qiang ZENG ; Yan YE ; Bin XIAO ; Hua ZOU ; Jianchao CHEN ; Dongxia LI ; Yongquan LIU ; Jixiang LIU ; Enfei JIANG ; Jun QI ; Liangying MEI ; Tianlai LI ; Mimi YANG ; Xinwei GUO ; Zhongxu WANG
Chinese Journal of Industrial Hygiene and Occupational Diseases 2025;43(2):101-109
Objective:To explore the structural equation model to explore the levels of work-related musculoskeletal disorders (WMSDs) and various risk factors in the feet and ankle of China's occupational population, providing scientific basis for for preventing WMSDs in feet and ankles.Methods:Data of 73497 national occupational epidemiological cases were selected from June 2018 to December 2023 used the Chinese version of the Electronic Questionnaire on Musculoskeletal Disorders. The adverse ergonomic factors and their source classification standard and confirmatory factor analysis were used to investigate foot and ankle WMSDs and their related risk factors (including individual factors, work organization, work posture, work type, fatigue, etc.) in key occupational groups in China, and structural equation model hypothesis, fitting, verification, and path and intermediary effect analysis were carried out. The model fit evaluation indexes included Chi-square specific degrees of freedom ( χ2/ df), gauge fit index (NFI), Tucker Lewis index (TLI), goodness of Fit index (GFI), adjusted Goodness of Fit index (AGFI) and approximate root mean square error (RMSEA) . Results:A total of 73497 occupational workers were surveyed, with local muscle fatigue and WMSDs incidence rates in the feet and ankles being 17.17% and 12.06%, respectively. The fitting index of the adjusted structural equation model basically meets the standard (GFI=1, AGFI=1, RMESA=0.042, NFI=0.716, TLI=0.663). The top three factors affecting feet and ankle WMSDs are feet and ankle muscle fatigue, work type, and work organization, with standardized path coefficients of 0.221, 0.105, and 0.095, respectively. The top two factors affecting feet and ankle muscle fatigue are work organization and work type, with standardized path coefficients of 0.548 and 0.383, respectively. Feet and ankle muscle fatigue, work type, work organization, and work posture have a direct effect on feet and ankle WMSDs, with effect values of 0.221, 0.105, 0.095, and 0.077, respectively. The organization and type of work can also have indirect effects through feet and ankle muscle fatigue, with effect values of 0.121 and 0.084, respectively.Conclusion:Feet and ankle muscle fatigue has a direct impact on WMSDs, and plays a mediating role between ankle and ankle WMSDs caused by work organization and work type. Feet and ankle muscle fatigue is an important pathway leading to feet and ankle WMSDs. It is recommended that employers and managers detect job fatigue early and take corresponding prevention and intervention measures, which can play a key role in preventing feet and ankle WMSDs.
10.Structural equation analysis and modeling of upper limb WMSDs and their adverse ergonomic factors
Siwu ZHONG ; Ning JIA ; Xin SUN ; Meibian ZHANG ; Qing XU ; Huadong ZHANG ; Ruijie LING ; Yimin LIU ; Gang LI ; Yan YIN ; Hua SHAO ; Jue LI ; Hengdong ZHANG ; Bing QIU ; Dayu WANG ; Qiang ZENG ; Rugang WANG ; Yan YE ; Bin XIAO ; Hua ZOU ; Jianchao CHEN ; Dongxia LI ; Yongquan LIU ; Qinghua SHI ; Jixiang LIU ; Enfei JIANG ; Jun QI ; Liangying MEI ; Xianfeng ZHAO ; Mimi YANG ; Xinwei GUO ; Zhi WANG ; Zhongxu WANG
Chinese Journal of Industrial Hygiene and Occupational Diseases 2025;43(4):254-263
Objective:To explore the structural relationship between WMSDs in the upper limbs and various risk factors in the occupational population in China, based on a large sample epidemiological survey and structural equation analysis, and to establish a structural equation model, so as to lay a foundation for the prevention and control of such diseases.Methods:The Chinese version of the Musculoskeletal Disorders Electronic Questionnaire was used to conduct a nationwide survey on the prevalence of WMSDs in the upper extremity. Six factors related to WMSDs in the upper extremity were extracted by the classification standard of adverse ergonomic factors and their source and confirmatory factor analysis, including work organization, work type, upper extremity work posture, individual factors, upper extremity fatigue and upper extremity WMSDs. The structural equation analysis was carried out and the structural equation model was established.Results:The incidence of WMSDs and fatigue in the upper limbs was 24.44% and 43.76%, respectively. The adjusted structural equation model fitting indicators were generally up to the standard (GFI=1.000, AGFI=1.000, RMSEA=0.043, NFI=0.808, TLI=0.784) . The four exogenous latent variables of work organization, work type, upper limb work posture and individual factors were correlated. There was a strong positive correlation between job type and upper limb work posture ( r=0.865) , a moderate positive correlation between work organization and job type and upper limb work posture ( r=0.570, 0.490) , and a weak negative correlation between individual factors and the other three exogenous latent variables. Upper limb work posture and individual factors had direct effects on upper limb WMSDs, and the effect coefficients were 0.10 and 0.06, respectively. Upper limb fatigue played a mediating role between work organization, work type, upper limb work posture and upper limb WMSDs. The effect coefficient was 0.46, and the composition ratios of indirect effects were 100.0%, 100.0%, and 38.3%, respectively. The direct path effect of upper limb work posture, individual factors and upper limb WMSDs was weaker than the mediating path through upper limb fatigue. Conclusion:When carrying out the prevention and control of upper limbWMSDs, it is necessary to comprehensively consider the pathogenesis path of upper limb muscle fatigue and upper limb WMSDs caused by work organization, work type, and upper limb work posture, so as to provide theoretical reference for improving the prevention and control level of such diseases.

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