1.Compatibility and comfort assessment of school desks and chairs in three cities in China
Chinese Journal of School Health 2025;46(3):321-324
Objective:
To understand the subjective and objective comfort evaluations of students from different age groups on desks and chairs, so as to provide reference for standardized allocation and use of desks and chairs.
Methods:
From January to April 2024, a total of 2 446 students were selected from 26 schools in 13 districts (counties/cities) in Shanghai, Tianjin, and Wuxi from Jiangsu Province by using cluster random method, including students in kindergartens, primary schools, junior high schools,senior high schools, colleges and universities. Standardized procedures were used to measure the height and weight of participants, and the matching desks and chairs models were selected according to the height. The subjective comfort of students on matching desks and chairs was investigated, and their objective comfort was evaluated by using a self designed questionnaire. The χ 2 test was used to analyze the differences of subjective perception and objective evaluation in comfort between different types of desks and chairs.
Results:
About 84.1% of the students subjectively thought that large desks and small chairs were very comfortable or relatively comfortable, followed by large desks and chairs (75.7%), and the proportion of small desks and chairs was the lowest among the three types (46.2%), and the difference was statistically significant ( χ 2=722.46, P <0.01). The reporting rates of primary school, junior high school and senior high school students who subjectively considered large desks and chairs to be very comfortable/relatively comfortable were higher than that of other types of desks and chairs, and the differences were statistically significant ( χ 2=297.49, 252.82, 343.67, P <0.01). However, there was no significant difference in the subjective comfort evaluation of different types of desks and chairs among kindergarten children ( χ 2=3.21, P >0.05), and 66.3% of the students in colleges and universities felt very comfortable/relatively comfortable when they used the matching standard desks and chairs. The objective evaluation results of the comfort for the three types of desks and chairs were consistent with the subjective evaluation, but the proportions of the objective evaluation as very comfortable/relatively comfortable were higher than that of the subjective evaluation ( χ 2=20.76- 813.47, P <0.01).
Conclusions
Large desks and chairs, as well as large desks with small chairs are perceived comfortable, while small desks and chairs are perceived less comfortable. It is recommended to match the large desks and chairs or large desks and small chairs that are suitable for them according to the "standard", to promote physical and mental health of students.
2.Comfort assessment of school desks and chairs ergonomics among students with different body types
Chinese Journal of School Health 2025;46(3):325-329
Objective:
To investigate the differences in the comfort of desks and chairs furniture among students with different body types according to the standard, so as to provide a reference for guiding students with overweight and obesity to choose the correct study furniture and revising the standards.
Methods:
From January to April 2024, 2 443 students from 26 schools in 13 districts (counties/cities) in Shanghai, Tianjin, and Jiangsu Province were selected by the cluster random sampling method to conduct physical examination. The subjective and objective evaluations of the comfort of height matched desks and chairs were investigated. The students were divided into non overweight, overweight, and obesity groups according to relevant criteria, and stratified analysis was performed. The χ 2 test was used to analyze differences in the comfort evaluations of desks and chairs among students with different body types.
Results:
Among the 2 443 students surveyed, 16.7% and 12.6% were respectively classified as overweight and obese. All students assigned the highest comfort ratings to large desks and small chairs (84.1%), and consistency was observed between students subjective and objective evaluations. The reporting rate of samll desks and chairs of obesity students subjective evaluation was lower (36.8%) than that of overweight and non overweight/obesity students (52.1%, 48.0%) ( χ 2=14.63, P <0.01). The overweight and obese group of primary school students had a worse evaluation of the comfort of large desks and chairs and small desks and chairs than those of the non overweight and obese groups( χ 2=15.78, 7.63, P <0.05). Among high school students, the overweight and obese group had worse evaluation of the comfort of large desks and chairs, as well as large desks and small chairs, than those of the non-overweight and obese groups( χ 2=9.62, 11.77, P <0.05). The objective evaluations revealed low compliance ratings on the posture of the thighs and calves for naturally forming an angle greater than 90° (55.6%), and headroom height under the table (50.3%) with small desks and chairs ( χ 2=94.05, 166.47, P <0.05).
Conclusions
Compared with non overweight/obese students, students with overweight and obese students report poor comfort evaluations of height matched desks and chairs. Revision of the standard should consider the body types of students, and evaluations of the comfort of desks and chairs furniture by students with overweight and obesity should be improved.
3.Protective effect of compound drug Weng-Li-Tong on cisplatin-induced hepatocyte injury
Liangwen YAN ; Xinyan LI ; Jiayi XU ; Fengyun BAI ; Fenyue YUAN ; Ying SUN ; Pengfei LIU
Journal of Xi'an Jiaotong University(Medical Sciences) 2024;45(5):815-821
Objective To investigate the protective effect of the compound drug Weng-Li-Tong(WLT)against cisplatin(CDDP)-induced hepatocyte injury.Methods A cellular injury model was established by treating murine hepatocyte line BNL CL.2 with CDDP(80 μmol/L).Experimental groups were divided as follows:CDDP group(modeling only),WLT group(intervention with 1 g/L WLT),WLT+CDDP group(co-administration of CDDP and 1 g/L WLT),and a control group(normal culture).The protective effect of the compound drug WLT on CDDP-mediated hepatocyte injury was evaluated using CCK-8 assay,PI staining,crystal violet staining,Western blotting,reactive oxygen species(ROS)detection,and apoptosis analysis.Results Compared with the control group,the number of dead cells increased significantly(P<0.001)in the CDDP group,but no cytotoxicity was observed in the WLT group.The hepatocyte morphology in the WLT+CDDP group showed improvement with no obvious shrinkage compared to the CDDP group,as evidenced by the reduced proportion of PI-positive cells.Crystal violet staining results also indicated a higher cell count in the WLT+CDDP group than in the CDDP group,suggesting the protective effect of WLT against CDDP-mediated liver injury.Under CDDP intervention,the expression of the apoptosis-related protein Cleaved Caspase-3 increased.However,in the WLT+CDDP group,the expression of Cleaved Caspase-3 decreased,while the expression of the anti-apoptotic protein Bcl-2 increased.Additionally,compared to the CDDP group,the WLT+CDDP group showed a reduction in ROS production[DCFH-DA staining positive rate(%):56.20±1.65 vs.44.57±0.31]and a decrease in the proportion of apoptotic cells[proportion of early and late apoptotic cells(%):43.60±0.44 vs.19.57±0.78;33.30±1.02 vs.14.83±0.57].Conclusion The compound drug WLT exhibits a protective effect against CDDP-mediated hepatocyte injury,suggesting potential therapeutic value in acute liver injury models.
4.Clinical Predominance Disease of Traditional Chinese Medicine: Gastroesophageal Reflux Disease
Ping WANG ; Fengyun WANG ; Yu LAN ; Lingyun ZHANG ; Xiaoqing LI ; Kun WANG ; Xiujing SUN ; Zhanfeng YAN ; Xiulan ZHANG ; Demin LI ; Hongmei WU ; Xiaohong LI ; Xiaoke LI ; Jianqin YANG ; Dawei ZOU ; Xiaoxiao ZHANG ; Xudong TANG
Chinese Journal of Experimental Traditional Medical Formulae 2023;29(12):199-208
Gastroesophageal reflux disease (GERD) is a frequently and commonly occurring disease in clinic. In recent decades, with the development in pathophysiology and drug researches, modern medicine has achieved remarkable progress and results in diagnosis and treatment. However, the treatments for non-erosive reflux disease, refractory gastroesophageal reflux disease, proton pump inhibitor resistance, overlap of disease symptoms, and extraesophageal symptoms are limited and ineffective. Traditional Chinese medicine (TCM) was widely used in clinical practice, which has been proved effective in relieving symptoms and improving the quality of life. Sponsored by China Association of Chinese Medicine (CACM) and undertaken by the Spleen and Stomach Disease Branch of CACM, "the 12th Youth Salon of Clinical Predominance Disease Series (GERD)" invited 18 authoritative digestive experts of TCM and western medicine to discuss "the difficulties of clinical diagnosis and treatment of GERD and TCM advantages". The focus issues such as modern medical diagnosis and treatment achievements and contributions, improvement and maintenance of symptoms, response to overlapping disease symptoms, reduction and withdrawal of acid suppressors, and treatment of extra-esophageal symptoms were discussed in depth. TCM and western medicine exchanged and complemented each other's strengths, combing the difficulties of modern medical diagnosis and treatment, which clarified the positioning and advantages of TCM and provided guidance for clinical and scientific research.
5.Research progress of transcranial Doppler combined with quantitative electroencephalogram for the evaluation of prognosis of ischemic stroke
Journal of Apoplexy and Nervous Diseases 2023;40(10):902-907
Ischemic stroke is the most common cerebrovascular disease with high morbidity and mortality. Neuroimaging examination has important clinical value in the diagnosis, differential diagnosis of stroke and the selection of treatment options, but it has certain limitations in monitoring the progress of post-stroke cerebral ischemia and evaluating prognosis. Both transcranial Doppler (TCD) and quantitative electroencephalogram (QEEG) have the characteristics of non-invasive, easy bedside and dynamic monitoring, and have high application value in clinical evaluation of cerebrovascular diseases and brain function status of patients. This article reviews the application value of TCD and QEEG in the prognosis evaluation of ischemic stroke, in order to provide some references for the effective evaluation of clinical prognosis of patients with acute ischemic stroke and for future research directions.
6.Two year follow up of myopia cohort in central Jiangsu Province
Chinese Journal of School Health 2022;43(9):1298-1300
Objective:
Based on observational, longitudinal and intervention study of common diseases among students in Jiangsu Province, this paper presents the current progress of two year follow up of myopia cohort regarding the association between growth parameters with progression of myopia among children and adolescents in areas with rapid economic growth.
Methods:
This survey adopted the stratified cluster sampling method for school selection. The full automatic computer optometry (TOPCON RM800) was used to track myopia related parameters for all participants from 2019 to 2020 under the condition of mydriasis (compound topicamide eye drops). Relationship between growth parameters of children and adolescents and the incidence and progression of myopia was analyzed by using Cox regression multiple statistical model.
Results:
The myopia rates of students from grade 1 to grade 3 in 2019 were 5.4%, 21.5% and 37.3% respectively. After one year, the myopia rates of all school stages increased to 25.3%, 43.3% and 58.1% respectively( χ 2=53.59, 49.63, 32.52, P <0.01). The mean diopter of right eye and left eye after mydriasis were ( 0.30± 1.24/0.39±1.26)D in 2019 and (-0.33±1.54/-0.19±1.55)D in 2020, respectively based on Cox multiple regression results, age ( HR =1.21, 95% CI =1.09-1.34), naked eye vision ( HR =0.08, 95% CI =0.07-0.11), height ( HR =0.98, 95% CI =0.97-0.99) showed a strong correlation with the incidence and progression of myopia( P <0.05).
Conclusion
Myopia is growing rapidly in the central region of Jiangsu Province. It is suggested that diopter, axial length, naked eye vision, age, height and other indicators should be included in the refractive archives of children and adolescents in the region.
7.Correlation of NUF2 Overexpression with Poorer Patient Survival in Multiple Cancers
Xiaodan JIANG ; Yan JIANG ; Senbiao LUO ; Karthik SEKAR ; Clara Kai Ting KOH ; Amudha DEIVASIGAMANI ; Qingzhe DONG ; Niankai ZHANG ; Shenling LI ; Fengyun HAO ; Brian Kim Poh GOH ; London Lucien OOI ; Yu WANG ; Kam Man HUI
Cancer Research and Treatment 2021;53(4):944-961
Purpose:
NUF2 has been implicated in multiple cancers recently, suggesting NUF2 may play a role in the common tumorigenesis process. In this study, we aim to perform comprehensive meta-analysis of NUF2 expression in the cancer types included in the Cancer Genome Atlas (TCGA).
Materials and Methods:
RNA-sequencing data in 31 cancer types in the TCGA data and 11 independent datasets were used to examine NUF2 expression. Silencing NUF2 using targeting shRNAs in hepatocellular carcinoma (HCC) cell lines was used to evaluate NUF2’s role in HCC in vitro and in vivo.
Results:
NUF2 up-regulation is significantly observed in 23 out of the 31 cancer types in the TCGA datasets and validated in 13 major cancer types using 11 independent datasets. NUF2 overexpression was clinically important as high NUF2 was significantly associated with tumor stages in eight different cancers. High NUF2 was also associated with significantly poorer patient overall survival and disease-free survival in eight and six cancers, respectively. We proceeded to validate NUF2 overexpression and its negative association with overall survival at the protein level in an independent cohort of 40 HCC patients. Compared to the non-targeting controls, NUF2 knockdown cells showed significantly reduced ability to grow, migrate into a scratch wound and invade the 8 μm porous membrane in vitro. Moreover, NUF2 knockdown cells also formed significantly smaller tumors than control cells in mouse xenograft assays in vivo.
Conclusion
NUF2 up-regulation is a common feature of many cancers. The prognostic potential and functional impact of NUF2 up-regulation warrant further studies.
8.A comparative study of 3 types of myopia screening methods among children and adolescents
Chinese Journal of School Health 2019;40(10):1542-1544
Objective:
This study aimed to evaluate the validity and predictive value of different methods for myopia screening, and to provide the most effective method of myopia screening.
Methods:
A total of 7 441 students of grade 1-12 selected from 36 primary and middle schools in 12 counties in Jiangsu Province were enrolled in this study for ophthalmological examination, and uncorrected visual acuity (UCVA, Plan A), noncycloplegic autorefraction (NCAR, Plan B) and combination of UCVA and NCAR (Plan C) were included in the examination. Receiver operating characteristics (ROC) curve was performed to determine the cut-off values (The gold standard is cycloplegic refraction: SE≤0.5 D), and positive predictive value, sensitivities, specificities and other indicators of three screening tests were compared and calculated.
Results:
The AUC of the combination test for uncorrected visual acuity(UCVA) and noncycloplegic autorefraction (NCAR) was nearly 1(0.91, 95%CI=0.90-0.92), and the sensitivity, specificity, Yoden index, diagnostic coincidence rate, positive predictive value and negative predictive value were 92.4%,89.5%,0.82,91.1%,91.3%,90.8%, respectively, but the index of the younger pupils in primary schools was relatively low. The result of screening plan A for students of middle and high school students was the closest to that of myopia diagnosis.
Conclusion
Combination test, which was recommended by China National Health Commission, can be a practical solution for school students for myopic screening. Under the condition of no mydriatic refraction, Plan A could be considered for myopia screening especially for middle and high school students. For the younger pupils, it is suggested to use the internationally recommended myopia screening strategy, that is, SE ≤ 0.50D after mydriasis.
9.Value of cervical stiffness measured by trans-vaginal ultrasound and real-time sono-elastography for predicting preterm labor in pregnant women
Jinghua LI ; Qingqing WU ; Fengyun GAO ; Lijuan SUN ; Yan LIU ; Xiaofei LI
Chinese Journal of Medical Ultrasound (Electronic Edition) 2017;14(12):933-937
Objective To assess the application value of trans-vaginal ultrasound and real-time sono-elastography in assessing the risk of preterm birth in pregnant women. Methods A total of 108 pregnant women who received prenatal examination at Beijing Obstetrics and Gynecology Hospital from January to November 2017 were included. Based on the presence of threatened premature or preterm labor or not, they were divided into a study group (n=29, with threatened premature or preterm labor) and a control group (n=79, with no threatened premature or preterm labor). Cervical length (CL) was measured by trans-vaginal ultrasound, and the following three cervical elasticity indexes were obtained by sono-elastography: the entire cervical strain rate (CS), the internal cervical os strain rate (IS), and external cervical os strain rate (ES). Independent samples t-test was used to analyze the difference in the above indexes between the two groups. Receiver operating characteristic (ROC) curve analysis was performed to assess the value of the above indexes in predicting the risk of preterm birth.Results CL was significantly lower[(2.94±0.66)cm vs(3.91±0.71)cm]and IS was significantly higher [(0.53±0.28)% vs (0.47±0.20)%] in the study group than in the control group (t=6.436, 3.406,both P<0.05).CS and ES in the study group were higher than those in the control group[(0.40±0.30)% vs (0.24±0.19)%,(0.74±0.39)% vs(0.73±0.37)%],but the differences were not statistically significant(t=1.365, 0.207, both P>0.05). ROC curve analysis indicated that CL, CS, IS, and ES performed differently in assessing the risk of preterm birth in pregnant women [area under the ROC curve (AUC): 0.156, 0.558, 0.689, 0.499]. The AUCs of CS and IS were greater than 0.50, and the AUC of IS was larger than those of other indexes. Using 0.30% as a cut-off for IS, its sensitivity, specificity, accuracy, positive predictive value, and negative predictive value were 66.7%, 79.3%, 71.1%, 55.4%, and 80.2%, respectively. Conclusions Cervical tissue elasticity indexes obtained by sono-elastography can be used to assess pregnant women at different gestational ages and predict the risk of preterm birth feasibly. IS is more useful than other indexes in predicting early or asymptomatic preterm birth.
10.Investigation of the cognitive status and the need of health education on children snoring from the parents whose children were in hospital by snoring
Fumin ZHAI ; Xueshuang LIU ; Fengyun YAN ; Qingwei MA
Chinese Journal of Practical Nursing 2016;32(5):364-368
Objective To understand the awareness of children snoring disease knowledge and demand of health education and appropriate health education methods from the parents whose children were in hospital by snoring, and provide basis for health education in clinic. Methods On the basis of literature search and expert consultation, 276 parents whose children in hospital by snoring were investigated by self-designed questionnaire. The questionnaire included the awareness of children snoring disease knowledge and demand of health education and appropriate health education methods were carried out. Results The awareness rate of children snoring disease knowledge was 2.54%-55.07% in parents whose children in hospital by snoring. The average demand rate of health education surpass 80%, major reason and symptom and main therapy and surgical outcomes of snoring were more concerned with 100.00%(276/276). The average demand rate of the impact on the intelligence was 96.38%(266/276). Acceptable methods of health education from high to low were as follows, consulting a doctor was 93.48%(258/276), posting publicity column in the halls or ward hallway was 74.28% (205/276), attending health education lecture was 66.30% (183/276), through QQ group or micro letter platform was 61.96%(171/276), through community healthy knowledge publicity column was 56.52%(156/276), through broadcast radio and television programs when see a doctor or in hospital was 53.62%(148/276), through telephone counseling was 36.96%(102/276), through hospital health prescription was 36.23% (100/276), through audiovisual teaching materials was 32.25% (89/276), communication between parents was 7.97%(22/276). Conclusions The awareness rate of children snoring disease knowledge from the parents whose children in hospital by snoring is low, the medical staff need take various ways of health education to improve snoring children′s parents′overall understanding level of children sleep apnea, effectively prevent various influencing factors of sleep apnea and snoring related complications, to reduce the dangers caused by snoring.


Result Analysis
Print
Save
E-mail