1.From Gene Expression to Transcriptome-wide Association Study: Development and Comparison of Methodology
Kun FANG ; Guozhuang LI ; Linting WANG ; Qing LI ; Kexin XU ; Lina ZHAO ; Zhihong WU ; Jianguo ZHANG ; Nan WU
Medical Journal of Peking Union Medical College Hospital 2026;17(1):223-229
Over the past two decades, genome-wide association study(GWAS) has identified numerous genetic variants and loci associated with heritable diseases. With the gradual maturation and saturation of GWAS methodologies, transcriptome-wide association study(TWAS) offers a novel perspective by linkinggenetic phenotypes to gene expression levels. By integrating TWAS with other multi-omics analyses, researchers can gain a deeper understanding of heritable diseases. This article provides an overview of recent groundbreaking and representative TWAS methods and tools, analyzes their strengths and limitations, and discusses future trends in TWAS development.
2.Effect and Mechanism of Exogenous NO in Secondary Metabolism in Scutellaria baicalensis
Kai ZHAO ; Wei MA ; Weili LIU ; Zhihong LOU ; Xiangcai MENG
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(1):250-261
ObjectiveTo investigate the effects of exogenous nitric oxide (NO) on the accumulation and quality formation mechanism of flavonoids in Scutellariae Radix. MethodsFresh roots of Scutellaria baicalensis were treated with sodium nitroprusside (SNP) solutions at concentrations of 0.0, 7.5, and 20 mmol·L-1, respectively. Kits and supporting reaction systems were used to determine the following indicators of samples in each group, including (1) reactive oxygen species: changes in the content of nitric oxide (NO), superoxide anion (O
3.Promoting rational dietary patterns and healthy lifestyles to enhance health of occupational population
Zhihong WANG ; Zijian WANG ; Gangqiang DING
Journal of Environmental and Occupational Medicine 2026;43(2):141-144
The occupational population in China faces increasingly complex health risks, with a growing burden of chronic diseases and multimorbidity. Based on data from the China Health and Nutrition Survey (CHNS), this special column systematically analyzed trends in dietary structure, nutrient intake, and metabolic abnormalities among different occupational groups from 1989 to 2018, revealing the combined effects of occupational categories and dietary behaviors on multimorbidity risk. The findings highlight that rational dietary patterns and healthy behaviors are key modifiable factors. It is recommended to leverage workplaces as platforms for nutritional interventions and behavioral improvement, thereby improving health literacy among the occupational population. Furthermore, the establishment of a multi-sectoral health promotion mechanism is recommended to guide dietary optimization and lifestyle transformation, contributing to chronic disease prevention and occupational health protection.
4.Secular trends in energy and macronutrient intake across different occupational groups in nine provinces of China, 1989–2018
Yu WU ; Jiguo ZHANG ; Liusen WANG ; Lixin HAO ; Chang QU ; Yumeng SONG ; Zhihong WANG ; Huijun WANG ; Bing ZHANG ; Hongru JIANG ; Gangqiang DING
Journal of Environmental and Occupational Medicine 2026;43(2):145-152
Background With China's socio-economic development, the dietary structure of Chinese residents has gradually shifted from a traditional Eastern pattern characterized by high carbohydrate intake to a relatively high-fat Western dietary model, alongside a growing burden of chronic diseases. However, dietary changes may vary across different occupational groups. Objective To analyze the long-term trends in dietary energy and three major macronutrient intake among various occupational groups aged 18-59 years in nine provinces of China from 1989 to 2018, providing a scientific basis for developing occupation-specific dietary intervention strategies. Methods Based on 11 waves of data (1989–2018) from the China Health and Nutrition Survey (CHNS),
5.Cardiometabolic risk factor trends across different occupational groups in nine provinces of China, 2009–2018
Yu WU ; Hongru JIANG ; Lixin HAO ; Liusen WANG ; Weiyi LI ; Shaoshunzi WANG ; Zijian WANG ; Zhihong WANG ; Huijun WANG ; Bing ZHANG ; Lili CHEN ; Gangqiang DING
Journal of Environmental and Occupational Medicine 2026;43(2):153-159
Background With China's socioeconomic development, significant lifestyle changes have occurred among occupational groups, leading to alterations in cardiovascular metabolic risk factors. However, few studies have examined the secular trends of these risk factors in China's working population. Objective To analyze the trends in cardiovascular metabolic risk factors among the occupational population in nine provinces of China from 2009 to 2018, and to explore the associations between different occupational types and these risk factors, along with their clustering patterns, thereby providing evidence for targeted interventions. Methods This study utilized data from the China Health and Nutrition Survey (CHNS) in 2009, 2015, and 2018. The dataset covered
6.Change trend of compound obesity among different occupational groups in nine provinces of China from 1993 to 2018
Lixin HAO ; Yu WU ; Liusen WANG ; Lili CHEN ; Boya ZHAO ; Zhongting LU ; Zhihong WANG ; Bing ZHANG ; Hongru JIANG ; Huijun WANG
Journal of Environmental and Occupational Medicine 2026;43(2):160-167
Background The global prevalence of obesity is on the rise and is closely associated with various chronic non-communicable diseases such as cardiovascular diseases and diabetes. There is a relative lack of long-term dynamic studies on compound obesity among occupational populations. Objective To explore the changing trends of compound obesity among different occupational groups aged 18–59 years in nine provinces (autonomous regions, municipalities) of China from 1993 to 2018, and to provide a scientific basis for formulating targeted weight management strategies for occupational populations. Methods A total of
7.Association between changes in body mass index and hypertension among different occupational groups
Zhongting LU ; Lili CHEN ; Hongru JIANG ; Lixin HAO ; Liusen WANG ; Weiyi LI ; Yu WU ; Huijun WANG ; Bing ZHANG ; Jiguo ZHANG ; Zhihong WANG
Journal of Environmental and Occupational Medicine 2026;43(2):168-173
Background With rising obesity rates and earlier hypertension onset among occupational populations, there is an urgent need to elucidate the long-term cardiovascular impacts of dynamic body weight patterns. Current evidence lacks trajectory modeling studies examining occupation-specific prevention strategies. Objective To investigate the association between long-term body mass index (BMI) trajectories and incident hypertension risk in Chinese working adults, and to examine occupation-specific heterogeneity in this relationship. Methods A dynamic sub-cohort of 4 413 occupational participants was constructed from ten survey waves (1991–2018) of the China Health and Nutrition Survey (CHNS). Eligible individuals had valid key BMI records at three or more independent follow-ups before the outcome event; the individual baseline was set as the year of their first participation in the survey. Group-based trajectory modeling (GBTM) was used to identify BMI change patterns. Cox proportional hazards regression was used to calculate hazard ratios (HRs) and 95% confidence interval (CI) for hypertension incidence across trajectory groups, with stratified analysis by occupational categories. Results Among
8.Influencing factors for postoperative malignant glaucoma in patients with primary angle-closure glaucoma
Jing LYU ; Jingfei BAN ; Zhihong ZHANG ; Yanan LI
International Eye Science 2026;26(4):711-717
AIM:To analyze the influencing factors of postoperative malignant glaucoma(MG)in patients with primary angle-closure glaucoma(PACG)using logistic regression and decision tree models.METHODS:A retrospective study was conducted on PACG patients who underwent surgery at Eye Hospital of Handan City from March 2020 to March 2025. Patients were divided into two groups: the MG group, who developed MG within 6 mo postoperatively, and the non-MG group. Data were collected from the electronic medical record system. Univariate analysis was performed, followed by multivariate logistic regression to identify independent risk factors. A classification and regression tree model was constructed to visualize the hierarchical relationships among predictors. The predictive performance of the two models was evaluated and compared using receiver operating characteristic(ROC)curve analysis.RESULTS:Totally 182 cases(182 eyes)with PACG were enrolled in this study, including 91 cases(91 eyes)in the MG group and 91 cases(91 eyes)in the non-MG group. In the MG group, there were 53 males and 38 females; 69 cases were aged ≥60 y and 22 cases were aged <60 y. In the non-MG group, there were 47 males and 44 females; 33 cases were aged ≥60 y and 58 cases were aged <60 y. The non-MG group comprised 91 patients, including 47 males and 44 females. Among them, 33 cases were aged ≥60 y, and 58 cases were aged<60 y. The MG group had significantly higher proportions of patients aged ≥60 y, diabetes, moderate-stage PACG, persistent high intraocular pressure(IOP), complete anterior chamber angle closure, lens thickness <4.5 mm, axial length <22 mm, and severe postoperative inflammation compared to the non-MG group(all P<0.01). Multivariate Logistic regression identified the following as independent influencing factors for postoperative MG: age [OR (95%CI)=2.136(1.401-3.255)], PACG stage [OR (95%CI)=2.996(2.044-4.391)], IOP [OR (95%CI)=3.527(1.604-7.755)],anterior chamber angle [OR (95%CI)=4.826(2.498-9.324)], axial length [OR (95%CI)=5.125(1.265-20.771)], and severe postoperative inflammation [OR (95%CI)=2.338(1.478-3.699)](all P<0.05). The decision tree model selected six explanatory variables: age, PACG stage, IOP, anterior chamber angle status, axial length, and severe postoperative inflammation. Axial length was the primary splitting factor at the root node. The areas under the ROC curve(AUC)for the logistic regression and decision tree models were 0.913(0.863-0.950)and 0.921(0.872-0.956), respectively, with no significant difference between them(Z=0.561, P=0.575).CONCLUSION:Both the logistic regression and decision tree models effectively identify key influencing factors for postoperative MG in PACG patients, including age, PACG stage, IOP, anterior chamber angle status, axial length, and severe postoperative inflammation. The decision tree model offers an intuitive, visual representation of risk stratification, facilitating clinical decision-making. Both models are applicable for clinical risk assessment.
9.Correlation of daytime outdoor light exposure and moderate to vigorous physical activities with sleep quality among primary school students
WANG Ziyi, DUAN Zhihong, MAIHELIYAKEZI Tuersunniyazi, PENG Hui, ZHU Yanhong, SHI Huijing
Chinese Journal of School Health 2026;47(3):351-354
Objective:
To analyze the independent and interaction effects of daytime outdoor light exposure and moderate to vigorous physical activity (MVPA) duration on sleep quality of primary school students, so as to provide scientific evidence for interventions on children s sleep health.
Methods:
From April to June 2024, a total of 444 students from grades 3 and 4 in 2 primary schools in Jiading District, Shanghai were selected using stratified random cluster sampling method for continuous 7 day monitoring. Wearable devices "Clouclip" were used to monitor daytime outdoor activity time (represented by time with light intensity ≥ 1 000 lx ), and accelerometers were used to monitor MVPA time and sleep quality related indicators. Multiple linear regression was used to analyze the associations of daytime outdoor activity and MVPA with sleep quality.
Results:
Both daytime outdoor light exposure and MVPA duration(longer actual sleep duration per night,longer time in bed,fewer awakening and shorter post sleep awakening shic) were independently associated with multiple sleep indicators( β =0.52, 0.46, -0.83, -2.19, all P <0.05), with no significant interaction between the associations ( P >0.05). After controlling for MVPA, more daytime outdoor light exposure was significantly and independently associated with longer actual sleep time ( β =0.50, 95% CI =0.21-0.79, P <0.05). After controlling for light exposure, longer MVPA duration was independently associated with shorter post-sleep awakening duration ( β=-4.15, 95% CI = -6.33 to -1.96, P <0.05).
Conclusion
Increased daytime outdoor activity and MVPA are both associated with better sleep quality in primary school students.
10.Effects of thioridazine on proliferation, adhesion and migration of human esophageal cancer cells and its mechanism
Chinese Journal of Biologicals 2026;39(04):416-420+435
Objective To investigate the effects of thioridazine(TZ) on the proliferation, adhesion and migration of human esophageal cancer cells and the mechanism, with the aim of providing new evidence and potential drug candidates for targeted therapy of esophageal cancer.MethodsHuman esophageal carcinoma OE19 cell line was cultured in vitro and divided into control group(without intervention), positive drug group(6 μmol/L doxorubicin), TZ + inhibitor group(80 μg/mL TZ + 2 μmol/L XAV939), TZ + activator group(80 μg/mL TZ + 20 μmol/L SKL2001) and TZ groups with different concentrations(40, 80 and 160 μg/mL), which was treated for at 37 ℃ 24 h. The cell viability of human esophageal carcinoma OE19 cells was determined by CCK-8 assay. The cell proliferation was measured by 5-acetylidene-2 'deoxyuracil nucleoside(EdU)method. The adhesion ability was determined by cell adhesion test. The migration ability was measured in Transwell chamber. The telative expression leaves of Wnt/β-catenin pathway-associated proteins were measured by Western blot.ResultsCompared with the control group, the cell viability of the 80, 160 μg/mL TZ and the positive drug groups significantly decreased(t = 8. 401, 9. 637 and 9. 466, respectively, each P < 0. 05). In the subsequent experiments, compared with the control group, the cell proliferation rate, the number of adhering cells, the number of migrating cells, and the protein expression levels of Wnt and β-catenin in the 80 μg/mL TZ and the positive drug groups all decreased significantly(t = 2. 819-17. 612,each P < 0. 05). Additionally, the cell proliferation rate, the number of adhering cells, the number of migrating cells, and the relative protein expression levels of Wnt and β-catenin in the TZ + inhibitor group were fsignificantly reduced compared with the 80 μg/mL TZ group(t = 3. 098-15. 105, each P < 0. 05), whereas the above indicators significantly increased in the TZ +activator group(t = 2. 449-5. 502, each P < 0. 05).ConclusionTZ can inhibit the proliferation, adhesion and migration of OE19 cells, and the mechanism may be related to the inhibition of Wnt/β-catenin pathway transduction.


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