1.Relationship between the use of disposable plastic food containers and executive function among primary school students in a district of Chongqing
WANG Wenhe, WU Dan, LIU Shudan, YE Siyan, CUI Chengpeng, LIU Qin
Chinese Journal of School Health 2025;46(6):811-815
Objective:
To investigate the impact of disposable plastic food container usage on the executive function among primary school students, so as to provide the evidence for the formulation of relevant health policies.
Methods:
From November 2023 to May 2024, a convenience sampling method was employed to select 1 118 grade 1-3 students from three primary schools in a central district of Chongqing. A self developed questionnaire was used to collect demographic characteristics and data on disposable plastic food container usage. Executive function of primary school students was assessed using the Childhood Executive Functioning Inventory (CHEXI). Multivariate linear regression analysis was conducted to explore the associations between disposable plastic food container usage and heating with executive function among primary school students.
Results:
Median scores for working memory, inhibition and total executive function among primary school students were 32 (26, 39), 33 (28, 38), and 66 (54, 75), respectively. Multivariate linear regression analysis showed that among girls, higher frequencies of eating meals from plastic lunchboxes were associated with higher CHEXI working memory scores ( β =1.29), inhibition scores ( β =1.57), and total executive function scores ( β =2.85) ( P <0.05). Compared to girls who did not use plastic cups or drank bottled water, those who used plastic cups for drinking or drank bottled water had higher scores in working memory ( β =2.63), inhibition ( β =2.10), and total executive function ( β =4.73); compared to girls who did not eat canned food from metal cans, those who ate such food had higher scores in working memory ( β =3.62), inhibition ( β =1.89), and total executive function ( β =5.50) ( P <0.05).Among boys, higher frequencies of eating meals from plastic lunchboxes were associated with higher inhibition scores ( β =1.13) ( P <0.05). Compared to girls who ate with a plastic lunch box and did not heat it when they ate,girls who more frequent heating plastic lunchboxes with food inside had higher working memory scores ( β = 5.39), inhibition scores ( β =4.29), and total executive function scores ( β = 9.68) ( P <0.05).
Conclusions
The use of disposable plastic food containers may adversely affect executive function of primary school students, with a more pronounced effect observed in girls. Strengthened regulation of disposable plastic products and health education are urgently needed.
2.Role of peripheral clock genes in the progression, prevention, and treatment of nonalcoholic steatohepatitis
Siyan LIU ; Jingyi TIAN ; Yuyang HUANG ; Tianqi GU ; Mingyue DENG ; Pan YANG
Journal of Clinical Hepatology 2024;40(12):2505-2512
As a severe clinical manifestation of nonalcoholic fatty liver disease, nonalcoholic steatohepatitis (NASH) is characterized by lipid deposition and inflammatory damage in the liver. At present, clinical medications for NASH are still in the exploratory phase, and it is urgent to make progress. Recent studies have shown that the pathogenesis of NASH is associated with circadian rhythm disorders in the liver, with the specific manifestation of dysregulated expression of liver clock genes such as BMAL1, which increases hepatic lipogenesis, reduces fatty acid oxidation, and activates pro-inflammatory factors. Therefore, improving circadian rhythm of the liver and regulating the expression of liver clock genes are feasible strategies for the prevention and treatment of NASH. Currently, some medications for NASH via activating the proteins encoded by clock genes have been applied in animal experiments, for example, the REVERB full-agonist SR9009 can inhibit the development of liver inflammation, which confirms the possibility of NASH treatment by targeting the proteins encoded by clock genes. This article summarizes the role of hepatic clock genes in regulating lipid metabolism and the development and progression of inflammation in the liver and elaborates on the recent advances in medications targeting clock genes and the proteins encoded by clock genes, in order to provide new targets for the treatment of NASH.
3.Research Status and Trends of Cohort Studies on Efficacy Evaluation of Traditional Chinese Medicine:A Bibliometrix-based Visual Analysis on Literature from 2017 to 2022
Zilin LONG ; Houyu ZHAO ; Xing LIAO ; Junchang LIU ; Qi SUN ; Cheng WANG ; Yutong FEI ; Haibo SONG ; Siyan ZHAN ; Feng SUN
Journal of Traditional Chinese Medicine 2024;65(7):737-744
ObjectiveTo explore the research status and trends of cohort studies on traditional Chinese medicine (TCM) efficacy evaluation from 2017 to 2022 and provide ideas and references for research in this field. MethodsSix databases including Pubmed, Web of Science, Embase, Scopus, Cochrane Library and CNKI were searched from January 1st, 2017 to December 31st, 2022. The total number of annual publications, journals, highly cited literatures, and keywords were quantitatively and visually analyzed by Bibliometrix. ResultsA total of 328 articles were included, which were published in 141 journals. The number of articles published in this field showed an overall upward trend, and retrospective cohort studies (282 papers, 85.98%) accounted for the largest proportion. A total of 151 cohort studies (46.04%) were conducted based on the database and showed an overall upward trend. The subjects were mainly patients with tumors (77 papers, 23.48%), and cardiovascular and cerebrovascular diseases (64 papers, 19.51%). The top 3 highly cited literatures mainly explore the association between TCM and survival outcome and quality of life in patients with malignant tumors. Fourteen and twenty-five high-frequency keywords were included in Chinese and English literature respectively, which formed 3 clusters such as research methods, statistical analysis and diseases. ConclusionIt was the current status to focus on retrospective cohort studies and focus on patients with tumors or cardiovascular and cerebrovascular diseases. Using observational database to conduct cohort studies of TCM efficacy evaluation could be the future research direction.
4.Research Progress of Traditional Chinese Medicine Compound in Prevention and Treatment of Type 2 Diabetes Based on Cell Signaling Pathway
Chuan PENG ; Siyan RAN ; Miao HE ; Zhengtao CHEN ; Yuli HU ; Mei LI ; Lili WU ; Lingling QIN ; Tonghua LIU
World Science and Technology-Modernization of Traditional Chinese Medicine 2024;26(6):1497-1504
As a chronic metabolic disease,type 2 diabetes poses a significant threat to human health with increasing incidence.An increasing number of studies confirm that the pathogenesis of diabetes is closely related with alterations in multiple cellular signaling pathways.Although numerous studies have reported that traditional Chinese medicine compounds prevent diabetes by modulating cell signaling pathways,asystematic review of the mechanism of action of traditional Chinese medicine compounds in modulating cell signaling pathways is still lacking.Therefore,this paper summarizes the research of type 2 diabetes prevention and treatment,which was found mainly related to the signaling pathways such as PI3K/AKT,AMPK,MAPK,NF-κB,PPAR,TGF-β.This family of signaling pathways can treat type 2 diabetes by inhibiting pancreatic islet cell apoptosis,protecting pancreatic β-cell function,ameliorating insulin resistance,inhibiting hepatic gluconeogenesis,promoting glycogen synthesis,attenuating inflammation,and resisting oxidative stress.At the same time,we analyze the problems in current research and the future development trend,in order to provide a scientific theoretical basis for the drug development and clinical application of traditional Chinese medicine compound in the prevention and treatment of diabetes.
5.Meta analysis of interventional effect of aerobic combined resistance exercise on hemodialysis patients
Yixiu LIU ; Siyan DENG ; Xiju LUO ; Huagang HU ; Jinhua LIU
Chongqing Medicine 2024;53(12):1856-1863
Objective To systematically assess the interventional effects of aerobic combined resistance exercise on walking ability,cardiorespiratory endurance,dialysis adequacy and quality of life in the patients with hemodialysis(HD).Methods The published randomized controlled trials on the interventional effects of aerobic combined resistance exercise in HD patients were retrieved from the databases of PubMed,Cochrane Library,Embase,Ovid,Web of Science,CNKI,VIP,Wanfang and China Biomedical Literature Service System(SinoMed).The retrieval time was from the database establishment to May 28,2021;the included literatures were analyzed by using RevMan 5.4 software.Results A total of 24 studies with 1 086 research subjects were included.The results showed that compared with the control group(adopting the usual care or conducting no-resistance limb movement),the walking ability,cardiopulmonary endurance and the dimensions of partial quality of life in the HD patients of the intervention group(aerobic combined resistance exercise)were signifi-cantly improved.The dialysis adequacy during dialysis in the intervention group was significantly improved compared with that in the control group.Conclusion Aerobic combined resistance exercise could improve the physical function,quality of life and dialysis adequacy in HD patients,and it is recommended that the patients are encouraged to conduct the aerobic combined resistance exercise by combining with the specific situation.
6.Epidemioloical characteristics and economic burden analysis of palmoplantar pustulosis in urban areas of China
Qian ZHANG ; Jingnan FENG ; Jinzhu GUO ; Lin ZHUO ; Lu XU ; Lili LIU ; Pei GAO ; Shengfeng WANG ; Siyan ZHAN ; Wenhui WANG
Chinese Journal of Preventive Medicine 2024;58(5):642-648
Objective:To analyze the epidemiological characteristics and economic burden of palmoplantar pustulosis (PPP) in China.Methods:A population-based retrospective study was conducted using the data from China′s Urban Basic Medical Insurance data from January 1, 2012, to December 31, 2016. International Classification of Diseases code and diagnoses in Chinese for PPP were used to identify cases and estimate the prevalence, incidence, and cost. Subgroup analyses were performed according to age and sex, and sensitivity analyses were conducted to evaluate the robustness of the results. Age-adjusted prevalence rates were calculated based on the 2010 national census data.Results:The crude prevalence and incidence rate of PPP in 2016 were 2.730/100 000 (95% CI: 2.218/100 000-3.242/100 000) and 1.556/100 000 (95% CI: 1.154/100 000-1.958/100 000), and the prevalence rate of females (2.910/100 000) was higher than that of males (2.490/100 000, χ2=97.48, P=0.001). The incidence rate of females (1.745/100 000) was also higher than that of males (1.418/100 000, χ2=85.02, P=0.001). The age peak of incidence and prevalence of patients with PPP was in the 30-39-year age group and a small peak existed in the 0-3-year age group among people under 20 years old. From 2012 to 2016, the average number of visits was (2.44±0.04) per patient, and the total per-capita cost per year was (982.40±39.19) yuan. Conclusion:In 2016, the prevalence and incidence rate of PPP in China were higher in females than in males, and the highest age peak was in the 30-39-year age group.
7.Analysis methods and case analysis of effect modification (1): effect modification in epidemiology and traditional Meta-analysis
Fengqi LIU ; Zhirong YANG ; Shanshan WU ; Houyu ZHAO ; Siyan ZHAN ; Feng SUN
Chinese Journal of Epidemiology 2024;45(1):148-154
This paper briefly introduces the definition, classification and significance of effect modification in epidemiological studies, summarizes the difference between effect modifier and confounders, and analyze the influence as well as the role of effect modification in epidemiological studies and Meta-analysis. In this paper, the possible scenarios of effect modification and related analysis strategy in Meta-analysis are indicated by graphics, aiming to arouse researchers' attention to effect modification. This paper also demonstrates how to identify and deal with effect modification in Meta-analysis through a study case of "Efficacy of sodium-glucose cotransporter 2 inhibitors in patients with type 2 diabetes", and shows the analysis process and interpretation of results of subgroup analysis and Meta-regression methods respectively. The advantages and disadvantages of these two methods are summarized to provide reference for the method selection of future research.
8.Analysis methods and case analysis of effect modification (2): effect modification in network Meta-analysis
Fengqi LIU ; Zhirong YANG ; Shanshan WU ; Houyu ZHAO ; Siyan ZHAN ; Feng SUN
Chinese Journal of Epidemiology 2024;45(2):273-278
This paper briefly introduces the characteristics, research significance, and global reporting status of effect modification in network Meta-analysis, demonstrates the heterogeneity caused by effect modification in network Meta-analysis, and emphasizes the importance of exploring effect modification in network Meta-analysis. This paper also summarizes the normalized description and analysis strategies of effect modification in network Meta-analysis. Finally, by the case of "comparison of efficacy of three new hypoglycemic drugs in reducing body weight in type 2 diabetes patients", this paper demonstrates the realization of subgroup analysis and network Meta-regression in exploring effect modification, summarizes the advantages and disadvantages of the two methods, to provide references for future researchers.
9.Progress in methodological research on bridging the efficacy-effectiveness gap of clinical interventions (1): to improve the validity of real-world evidence
Zuoxiang LIU ; Zilin LONG ; Zhirong YANG ; Shuyuan SHI ; Xinran XU ; Houyu ZHAO ; Zuyao YANG ; Zhu FU ; Haibo SONG ; Tengfei LIN ; Siyan ZHAN ; Feng SUN
Chinese Journal of Epidemiology 2024;45(2):286-293
Objective:Differences between randomized controlled trial (RCT) results and real world study (RWS) results may not represent a true efficacy-effectiveness gap because efficacy-effectiveness gap estimates may be biased when RWS and RCT differ significantly in study design or when there is bias in RWS result estimation. Secondly, when there is an efficacy- effectiveness gap, it should not treat every patient the same way but assess the real-world factors influencing the intervention's effectiveness and identify the subgroup likely to achieve the desired effect.Methods:Six databases (PubMed, Embase, Web of Science, CNKI, Wanfang Data, and VIP) were searched up to 31 st December 2022 with detailed search strategies. A scoping review method was used to integrate and qualitatively describe the included literature inductively. Results:Ten articles were included to discuss how to use the RCT research protocol as a template to develop the corresponding RWS research protocol. Moreover, based on correctly estimating the efficacy-effectiveness gap, evaluate the intervention effect in the patient subgroup to confirm the subgroup that can achieve the expected benefit-risk ratio to bridge the efficacy-effectiveness gap.Conclusion:Using real-world data to simulate key features of randomized controlled clinical trial study design can improve the authenticity and effectiveness of study results and bridge the efficacy-effectiveness gap.
10.Analysis methods and case analysis of effect modification (3): effect modification in individual patient data Meta-analysis
Fengqi LIU ; Zhirong YANG ; Shanshan WU ; Houyu ZHAO ; Siyan ZHAN ; Feng SUN
Chinese Journal of Epidemiology 2024;45(3):447-454
This paper briefly introduces the unique advantages, overall analysis ideas and existing analysis methods of individual patient data Meta-analysis in terms of effect modification. In addition to Meta-regression and subgroup analysis, this paper also introduces the analysis methods based on part of individual patient data integrated with aggregated data and summarizes the current reporting of the above mentioned methods. In addition, the application and results interpretation of the above mentioned methods in individual patient data Meta-analysis are presented in this paper by taking "Effects of sodium-glucose cotransporter 2 inhibitors on SBP in patients with type 2 diabetes" as an example and by introducing their advantages and limitations.


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