1.Association between moderate to vigorous intensity physical activity and sedentary behavior among primary and secondary school students and their parents
YAO Zifeng, YE Rongrong, CHEN Jiade, XU Peng, HUANG Yanhong, LI Lixia, LI Hongjuan, GAO Yanhui
Chinese Journal of School Health 2025;46(1):68-72
Objective:
To explore the associations of moderate to vigorous intensity physical activity (MVPA) and sedentary behavior (SB) among primary and secondary school students and their parents, so as to provide a scientific basis for formulating targeted physical activity promotion strategies for children and adolescents.
Methods:
From 2021 to 2022, basic information and 24 h movement behaviors of 2 484 pairs of students and their parents were collected from five primary and secondary schools in Haizhu District, Guangzhou City, with a convenient sampling combining with cluster sampling method. Component regression models were constructed to analyze the relationship between parental MVPA, SB and primary and secondary school students MVPA and SB, and a component isochronous substitution model was used to explore the effects of mutual substitution between parental MVPA, residual components (time use components other than SB during the 24 h period), and SB on the behavioral activities of MVPA and SB in primary and secondary school students.
Results:
Parental MVPA and SB of students in grade 1 to 3 were positively correlated with both students MVPA and SB ( β=0.06, 0.12, P <0.01). The component isochronous substitution model showed that substituting 10 and 20 minutes of MVPA for SB by parents in grade 1 to 3 was associated with an increase in MVPA of students, and substituting 10 and 20 minutes of residual ingredients for SB was associated with a decrease in SB of students, with mean changes of 0.8 (95% CI =0.4-1.2) and 1.4 (95% CI =0.7-2.2) and -1.4 (95% CI =-1.7 to -1.1) and -2.9 (95% CI =-3.4 to -2.3)( P <0.05). No statistically significant associations were observed between parents of students in grades 4 to 6 and 7 to 9 and students physical activity and sedentary behaviour ( P >0.05).
Conclusions
Parents of students in grades 1 to 3 increases MVPA and decrease SB are beneficial to increase MVPA and decrease SB of students. Parents could promote physical activity among primary and secondary school students, and the intervention gateway should be advanced, with the low grades as the optimal intervention period.
2.Risk factors of ineffective eradication therapy of adult Helicobacter pylori infection:a meta-analysis
Zhifeng TANG ; Guoming GAO ; Shuoquan LI ; Agang QU ; Lixia GOU
China Pharmacy 2025;36(12):1525-1529
OBJECTIVE To systematically evaluate the risk factors for ineffective eradication therapy of adult Helicobacter pylori (Hp) infection. METHODS Retrieved from PubMed,Web of Science, the Cochrane Library, Embase, CNKI, VIP and Wanfang Data, cohort studies and case-control studies on the eradication therapy for Hp infection in adult patients were searched from Jan. 2000 to Jul. 2024. After screening literature, extracting data, and evaluating the quality of literature, RevMan 5.3 software was used for meta-analysis, and sensitivity analysis and publication bias analysis were also performed. RESULTS A total of 19 articles were included, all of which were cohort studies, involving 9 931 patients in total. Among them, 1 929 patients were ineffective in eradication therapy, with the ineffective rates ranging from 8.02% to 33.33%. Meta-analysis showed that age<50 years [OR=1.33, 95%CI (1.12,1.57), P<0.001], body mass index (BMI)>25 kg/m2 [OR=1.87, 95%CI (1.35, 2.59), P= 0.000 2], a history of smoking [OR=1.62, 95%CI(1.35, 1.95), P<0.001], a history of drinking [OR=1.93, 95%CI(1.47, 2.54), P<0.001], living in a rural area [OR=1.74, 95%CI(1.41, 2.15), P<0.001], having non-peptic ulcer [OR=3.45, 95%CI (1.75, 6.67), P=0.000 3], a family members’ infection history [OR=4.72, 95%CI(3.32, 6.74), P<0.001], poor treatment compliance [OR=4.89, 95%CI (3.07, 7.79), P<0.001], amoxicillin resistance [OR=3.42, 95%CI (1.95, 6.00), P<0.001] and clarithromycin resistance [OR=8.14, 95%CI(5.00, 13.24), P<0.001] had significant impacts on ineffective eradication therapy of Hp infection in adults. Sensitivity analysis and publication bias analysis showed that the result of this study was robust and reliable. CONCLUSIONS Age<50 years, BMI>25 kg/m, a history of smoking, a history of drinking, living in a rural area, having non-peptic ulcer, a family members’ infection history, poor treatment compliance, amoxicillin resistance and clarithromycin resistance are risk factors for failure of Hp infection eradication therapy in adults.
3.Development and application on a full process disease diagnosis and treatment assistance system based on generative artificial intelligence.
Wanjie YANG ; Hao FU ; Xiangfei MENG ; Changsong LI ; Ce YU ; Xinting ZHAO ; Weifeng LI ; Wei ZHAO ; Qi WU ; Zheng CHEN ; Chao CUI ; Song GAO ; Zhen WAN ; Jing HAN ; Weikang ZHAO ; Dong HAN ; Zhongzhuo JIANG ; Weirong XING ; Mou YANG ; Xuan MIAO ; Haibai SUN ; Zhiheng XING ; Junquan ZHANG ; Lixia SHI ; Li ZHANG
Chinese Critical Care Medicine 2025;37(5):477-483
The rapid development of artificial intelligence (AI), especially generative AI (GenAI), has already brought, and will continue to bring, revolutionary changes to our daily production and life, as well as create new opportunities and challenges for diagnostic and therapeutic practices in the medical field. Haihe Hospital of Tianjin University collaborates with the National Supercomputer Center in Tianjin, Tianjin University, and other institutions to carry out research in areas such as smart healthcare, smart services, and smart management. We have conducted research and development of a full-process disease diagnosis and treatment assistance system based on GenAI in the field of smart healthcare. The development of this project is of great significance. The first goal is to upgrade and transform the hospital's information center, organically integrate it with existing information systems, and provide the necessary computing power storage support for intelligent services within the hospital. We have implemented the localized deployment of three models: Tianhe "Tianyuan", WiNGPT, and DeepSeek. The second is to create a digital avatar of the chief physician/chief physician's voice and image by integrating multimodal intelligent interaction technology. With generative intelligence as the core, this solution provides patients with a visual medical interaction solution. The third is to achieve deep adaptation between generative intelligence and the entire process of patient medical treatment. In this project, we have developed assistant tools such as intelligent inquiry, intelligent diagnosis and recognition, intelligent treatment plan generation, and intelligent assisted medical record generation to improve the safety, quality, and efficiency of the diagnosis and treatment process. This study introduces the content of a full-process disease diagnosis and treatment assistance system, aiming to provide references and insights for the digital transformation of the healthcare industry.
Artificial Intelligence
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Humans
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Delivery of Health Care
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Generative Artificial Intelligence
4.New diterpenoids from Euphorbia wallichii with antioxidant activity.
Yali WANG ; Juan CHEN ; Wenshuo ZHENG ; Ziyan GAO ; Yuxin GAN ; Hua LI ; Lixia CHEN
Chinese Journal of Natural Medicines (English Ed.) 2025;23(10):1248-1258
Thirteen novel diterpenoids, comprising seven tiglianes (walliglianes G-M, 1-7), four rhamnofolanes (wallinofolanes A-D, 8-11), and two daphnanes (wallaphnanes A and B, 12 and 13), together with two known rhamnofolane diterpenoids (euphorwallside H and euphorwallside I, 14 and 15), were isolated and characterized from Euphorbia wallichii(E. wallichii). The chemical structures of these compounds were elucidated through nuclear magnetic resonance (NMR), mass spectrometry (MS), and quantum chemical calculations. Compounds 9 and 11 demonstrated protective effects against H2O2-induced BV-2 microglial cell damage. Molecular docking analyses indicated that compound 9 exhibited binding affinity to the anti-oxidant-related targets HMGCR, GSTP1, and SHBG.
Euphorbia/chemistry*
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Antioxidants/isolation & purification*
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Diterpenes/isolation & purification*
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Molecular Structure
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Mice
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Molecular Docking Simulation
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Animals
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Hydrogen Peroxide/toxicity*
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Cell Line
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Microglia/drug effects*
5.Mental health service utilization of patients with five mental disorders in Inner Mongolia communities
Yinxia BAI ; Lu TONG ; Zhaorui LIU ; Jie YAN ; Ruiqi WANG ; Tingting ZHANG ; Hua DING ; Lixia CHEN ; Jiahui YAO ; Xiaojuan GAO ; Dongsheng LYU ; Zhijian BAI ; Ziyu LI ; Xiaojie SUI ; Yueqin HUANG
Chinese Mental Health Journal 2024;38(5):419-425
Objective:To describe the current situation of mental health service utilization of community pa-tients with five mental disorders in Inner Mongolia Autonomous Region and provide reference for health education and formulating relevant policies.Methods:The multistage stratified sampling method with unequal probability was used to select a total of 12 315 community residents aged 18 and over in Inner Mongolia Autonomous Region.Using Composite International Diagnostic Interview,mood disorders,anxiety disorders,substance use disorders,intermit-tent explosive disorders,and eating disorders,and health service utilization were investigated.Descriptive statistics was completed by single factor analysis method.Results:The lifetime rates of consultation and treatment of any mental disorder were 18.7%and 10.2%,respectively.The highest proportion of patients received treatment by non-medical professionals was 31.4%,followed by psychiatrists in psychiatric hospital or psychologists in general hospitals.Among the patients,1.1%of them received medication,and 2.5%received psychotherapy.Conclusion:The utilization rate of mental health services in community patients with five mental disorders is relatively low.It is necessary to conduct health education for medical help seeking properly.
6.Diagnostic values of anti-salivary gland protein-1 antibody combined with anti-parotid secretory protein antibody for Sj?gren's syndrome
Yushu YANG ; Xuan QI ; Meng DING ; Wei WANG ; Huifang GUO ; Lixia GAO
Journal of Peking University(Health Sciences) 2024;56(5):845-852
Objective:To assess the diagnostic value of anti-salivary gland protein-1(SP1)antibody combined with anti-parotid secretory protein(PSP)antibody for Sj?gren's syndrome(SS).Methods:A total of 60 patients with primary SS(pSS)who were treated in the outpatient and inpatient department of Department of Rheumatology and Immunology of the Second Hospital of Hebei Medical University from January 2020 to December 2022 were collected.Thirty patients with other autoimmune diseases accompa-nied by dry mouth and/or dry eyes were collected as disease control group.Thirty healthy subjects from the physical examination center were collected for healthy control group,serum samples were obtained from all of them.Their general features and clinical information including clinical manifestations,labora-tory examinations and other examinations were recorded.The 2016 American College of Rheumatology(ACR)/European League against Rheumatism(EULAR)classification criteria were adopted as the diag-nostic standard of pSS.Immunoglobulin G(IgG)subtype of anti-SP1 antibody and anti-PSP antibody were detected by chemiluminescence immunoassay.The receiver operating characteristic(ROC)curve was used to evaluate the accuracy of anti-SP1 antibody and anti-PSP antibody in diagnosing pSS.The cli-nical characteristics of anti-SP1 antibody and anti-PSP antibody positive patients and negative patients in pSS group were further compared.Independent samples t test,Mann-Whitney U test,variance analysis,Kruskal-Wallis test,Chi-square test or Fisher's exact test and Spearman correlation analysis were used for statistical analysis.Results:There was no significant difference in age(F=1.406,P=0.495)and gender(x2=2.105,P=0.349)among pSS group,disease control group and healthy control group.The expression levels of anti-SP1 antibody(H=16.73,P<0.001)and anti-PSP antibody(H=26.09,P<0.001)were statistically different among the three groups.An intergroup comparison of anti-SP1 antibody expression levels showed that there was a statistically significant difference between pSS and healthy con-trol group(P<0.001),but no statistically significant difference between the other groups.Comparison of anti-PSP antibody expression levels between the groups showed that there were statistically significant differences between pSS and healthy control group(P<0.001),and between disease control group and healthy control group(P=0.009),while no statistically significant differences between the other groups.The positive rate of anti-SP1 antibody in pSS group was significantly higher than that in disease control group and healthy control group(58.33%vs.40.00%vs.13.33%,P<0.001).The positive rate of anti-PSP antibody in pSS group was significantly higher than that in disease control group and healthy control group(75.00%vs.56.17%vs.16.67%,P<0.001).The area under the curve for anti-SP1 antibody was 0.688(P<0.001).The sensitivity and specificity of anti-SP1 antibody were 58.33%(35/60)and 70.00%(42/60)respectively,the positive predictive value was 66.04%(35/53)and the negative predictive value was 54.55%(42/77)of anti-SP1 antibody.The area under the curve of anti-PSP antibody was 0.720(P<0.001),with a sensitivity was 75.00%(45/60),and spe-cificity was 63.33%(38/60).The positive predictive value and negative predictive value of anti-PSP an-tibody were 67.16%(45/67)and 71.70%(38/53)respectively.All the 13 pSS patients were negative for anti-Sjogren's syndrome A(SSA,including SSA52 and SSA60)antibody and anti-Sjogren's syn-drome B(SSB)antibody.Among them,11 patients were positive for both anti-SP1 antibody and anti-PSP antibody,1 patient was positive for anti-SP1 antibody and 1 patient was positive for anti-PSP anti-body.The clinical features of anti-SP1 antibody and anti-PSP antibody positive and negative groups were compared in pSS patients.The duration of disease in anti-SP1 antibody positive group was shorter(Z=-2.277,P=0.023)when compared with the negative patients.The patients with positive anti-PSP an-tibody were younger than those in the negative group(t=2.598,P<0.05),the positive rate of rheuma-toid factor(P=0.002)and the serum level of IgG(t=3.806,P=0.003)in anti-PSP antibody positive group were higher than in the negative group.Analysis of the correlation between anti-SP1 antibody and anti-PSP antibody in the pSS patients showed that there was significant correlation between them(r=0.801,P<0.001).Conclusion:Both anti-SP1 antibody and anti-PSP antibody are valuable in the diag-nosis of SS,and anti-SP1 antibody is helpful for the early diagnosis of pSS.The combined detection of anti-SP1 antibody and anti-PSP antibody is helpful for the early diagnosis of pSS patients with negative anti-SSA antibody and anti-SSB antibody.
7.A meta analysis on influence of surgical site infection occurrence in colorectal cancer patients based on body mass index in Chinese population
Huanmei LIU ; Ting GAO ; Lixia YIN
Chongqing Medicine 2024;53(17):2650-2655,2662
Objective To systematically evaluate the effect of the body mass index(BMI)≥24 kg/m2 on the incidence rate of surgery site infection(SSI)in the Chinese patients with colorectal cancer.Methods The domestic and foreign databases were searched for the observational studies on SSI of colorectal cancer containing the single factor analysis and BMI.The literatures with BMI≥24 kg/m2 and the Chinese pa-tients with colorectal cancer as the study subjects were screened out.The literatures meeting the requirements performed the meta analysis and bias analysis.Results A total of 32 literatures were included with 10 350 pa-tients,among them,SSI occurred in 1 748 patients.There was significant heterogeneity among 32 literatures(I2=65%,P<0.01).The random effects model was used for conducting the meta analysis,and the results showed that the incidence rate of SSI in colorectal cancer patients with BMI≥24 kg/m2 was higher than that in colorectal cancer patients with BMI<24 kg/m2(OR=2.57,95%CI:2.07-3.19,P<0.01).The funnel plot suggested that there was the publication bias in 7 literatures,and the Egger's test showed P=0.158,sug-gesting that the bias was not significant.Conclusion In the Chinese population,the incidence rate of SSI in the colorectal cancer patients with BMI≥24 kg/m2 is 2.57 times of that in the patients with BMI<24 kg/m2.
8.Surveillance of bacterial resistance in tertiary hospitals across China:results of CHINET Antimicrobial Resistance Surveillance Program in 2022
Yan GUO ; Fupin HU ; Demei ZHU ; Fu WANG ; Xiaofei JIANG ; Yingchun XU ; Xiaojiang ZHANG ; Fengbo ZHANG ; Ping JI ; Yi XIE ; Yuling XIAO ; Chuanqing WANG ; Pan FU ; Yuanhong XU ; Ying HUANG ; Ziyong SUN ; Zhongju CHEN ; Jingyong SUN ; Qing CHEN ; Yunzhuo CHU ; Sufei TIAN ; Zhidong HU ; Jin LI ; Yunsong YU ; Jie LIN ; Bin SHAN ; Yunmin XU ; Sufang GUO ; Yanyan WANG ; Lianhua WEI ; Keke LI ; Hong ZHANG ; Fen PAN ; Yunjian HU ; Xiaoman AI ; Chao ZHUO ; Danhong SU ; Dawen GUO ; Jinying ZHAO ; Hua YU ; Xiangning HUANG ; Wen'en LIU ; Yanming LI ; Yan JIN ; Chunhong SHAO ; Xuesong XU ; Wei LI ; Shanmei WANG ; Yafei CHU ; Lixia ZHANG ; Juan MA ; Shuping ZHOU ; Yan ZHOU ; Lei ZHU ; Jinhua MENG ; Fang DONG ; Zhiyong LÜ ; Fangfang HU ; Han SHEN ; Wanqing ZHOU ; Wei JIA ; Gang LI ; Jinsong WU ; Yuemei LU ; Jihong LI ; Qian SUN ; Jinju DUAN ; Jianbang KANG ; Xiaobo MA ; Yanqing ZHENG ; Ruyi GUO ; Yan ZHU ; Yunsheng CHEN ; Qing MENG ; Shifu WANG ; Xuefei HU ; Wenhui HUANG ; Juan LI ; Quangui SHI ; Juan YANG ; Abulimiti REZIWAGULI ; Lili HUANG ; Xuejun SHAO ; Xiaoyan REN ; Dong LI ; Qun ZHANG ; Xue CHEN ; Rihai LI ; Jieli XU ; Kaijie GAO ; Lu XU ; Lin LIN ; Zhuo ZHANG ; Jianlong LIU ; Min FU ; Yinghui GUO ; Wenchao ZHANG ; Zengguo WANG ; Kai JIA ; Yun XIA ; Shan SUN ; Huimin YANG ; Yan MIAO ; Mingming ZHOU ; Shihai ZHANG ; Hongjuan LIU ; Nan CHEN ; Chan LI ; Jilu SHEN ; Wanqi MEN ; Peng WANG ; Xiaowei ZHANG ; Yanyan LIU ; Yong AN
Chinese Journal of Infection and Chemotherapy 2024;24(3):277-286
Objective To monitor the susceptibility of clinical isolates to antimicrobial agents in tertiary hospitals in major regions of China in 2022.Methods Clinical isolates from 58 hospitals in China were tested for antimicrobial susceptibility using a unified protocol based on disc diffusion method or automated testing systems.Results were interpreted using the 2022 Clinical &Laboratory Standards Institute(CLSI)breakpoints.Results A total of 318 013 clinical isolates were collected from January 1,2022 to December 31,2022,of which 29.5%were gram-positive and 70.5%were gram-negative.The prevalence of methicillin-resistant strains in Staphylococcus aureus,Staphylococcus epidermidis and other coagulase-negative Staphylococcus species(excluding Staphylococcus pseudintermedius and Staphylococcus schleiferi)was 28.3%,76.7%and 77.9%,respectively.Overall,94.0%of MRSA strains were susceptible to trimethoprim-sulfamethoxazole and 90.8%of MRSE strains were susceptible to rifampicin.No vancomycin-resistant strains were found.Enterococcus faecalis showed significantly lower resistance rates to most antimicrobial agents tested than Enterococcus faecium.A few vancomycin-resistant strains were identified in both E.faecalis and E.faecium.The prevalence of penicillin-susceptible Streptococcus pneumoniae was 94.2%in the isolates from children and 95.7%in the isolates from adults.The resistance rate to carbapenems was lower than 13.1%in most Enterobacterales species except for Klebsiella,21.7%-23.1%of which were resistant to carbapenems.Most Enterobacterales isolates were highly susceptible to tigecycline,colistin and polymyxin B,with resistance rates ranging from 0.1%to 13.3%.The prevalence of meropenem-resistant strains decreased from 23.5%in 2019 to 18.0%in 2022 in Pseudomonas aeruginosa,and decreased from 79.0%in 2019 to 72.5%in 2022 in Acinetobacter baumannii.Conclusions The resistance of clinical isolates to the commonly used antimicrobial agents is still increasing in tertiary hospitals.However,the prevalence of important carbapenem-resistant organisms such as carbapenem-resistant K.pneumoniae,P.aeruginosa,and A.baumannii showed a downward trend in recent years.This finding suggests that the strategy of combining antimicrobial resistance surveillance with multidisciplinary concerted action works well in curbing the spread of resistant bacteria.
9.Development of the robotic digestive endoscope system and an experimental study on mechanistic model and living animals (with video)
Bingrong LIU ; Yili FU ; Kaipeng LIU ; Deliang LI ; Bo PAN ; Dan LIU ; Hao QIU ; Xiaocan JIA ; Jianping CHEN ; Jiyu ZHANG ; Mei WANG ; Fengdong LI ; Xiaopeng ZHANG ; Zongling KAN ; Jinghao LI ; Yuan GAO ; Min SU ; Quanqin XIE ; Jun YANG ; Yu LIU ; Lixia ZHAO
Chinese Journal of Digestive Endoscopy 2024;41(1):35-42
Objective:To develop a robotic digestive endoscope system (RDES) and to evaluate its feasibility, safety and control performance by experiments.Methods:The RDES was designed based on the master-slave control system, which consisted of 3 parts: the integrated endoscope, including a knob and button robotic control system integrated with a gastroscope; the robotic mechanical arm system, including the base and arm, as well as the endoscopic advance-retreat control device (force-feedback function was designed) and the endoscopic axial rotation control device; the control console, including a master manipulator and an image monitor. The operator sit far away from the endoscope and controlled the master manipulator to bend the end of the endoscope and to control advance, retract and rotation of the endoscope. The air supply, water supply, suction, figure fixing and motion scaling switching was realized by pressing buttons on the master manipulator. In the endoscopy experiments performed on live pigs, 5 physicians each were in the beginner and advanced groups. Each operator operated RDES and traditional endoscope (2 weeks interval) to perform porcine gastroscopy 6 times, comparing the examination time. In the experiment of endoscopic circle drawing on the inner wall of the simulated stomach model, each operator in the two groups operated RDES 1∶1 motion scaling, 5∶1 motion scaling and ordinary endoscope to complete endoscopic circle drawing 6 times, comparing the completion time, accuracy (i.e. trajectory deviation) and workload.Results:RDES was operated normally with good force feedback function. All porcine in vivo gastroscopies were successful, without mucosal injury, bleeding or perforation. In beginner and advanced groups, the examination time of both RDES and ordinary endoscopy tended to decrease as the number of operations increased, but the decrease in time was greater for operating RDES than for operating ordinary endoscope (beginner group P=0.033; advanced group P=0.023). In the beginner group, the operators operating RDES with 1∶1 motion scaling or 5∶1 motion scaling to complete endoscopic circle drawing had shorter completion time [1.68 (1.40, 2.17) min, 1.73 (1.47, 2.37) min VS 4.13 (2.27, 5.16) min, H=32.506, P<0.001], better trajectory deviation (0.50±0.11 mm, 0.46±0.11 mm VS 0.82±0.26 mm, F=38.999, P<0.001], and less workload [42.00 (30.00, 50.33) points, 43.33 (35.33, 54.00) points VS 52.67 (48.67, 63.33) points, H=20.056, P<0.001] than operating ordinary endoscope. In the advanced group, the operators operating RDES with 1∶1 or 5∶1 motion scaling to complete endoscopic circle drawing had longer completion time than operating ordinary endoscope [1.72 (1.37, 2.53) min, 1.57 (1.25, 2.58) min VS 1.15 (0.86, 1.58) min, H=13.233, P=0.001], but trajectory deviation [0.47 (0.13, 0.57) mm, 0.44 (0.39, 0.58) mm VS 0.52 (0.42, 0.59) mm, H=3.202, P=0.202] and workload (44.62±21.77 points, 41.24±12.57 points VS 44.71±17.92 points, F=0.369, P=0.693) were not different from those of the ordinary endoscope. Conclusion:The RDES enables remote control, greatly reducing the endoscopists' workload. Additionally, it gives full play to the cooperative motion function of the large and small endoscopic knobs, making the control more flexible. Finally, it increases motion scaling switching function to make the control of endoscope more flexible and more accurate. It is also easy for beginners to learn and master, and can shorten the training period. So it can provide the possibility of remote endoscopic control and fully automated robotic endoscope.
10.Effect of Modified Dahuang Huanglian Xiexintang on Oxidative Stress Injury of Liver in Type 2 Diabetes Mellitus Rats Based on Nrf2/HO-1 Axis
Chengjun MA ; Fengzhe YAN ; Lixia YANG ; Yonglin LIANG ; Xiangdong ZHU ; Dong AN ; Yankui GAO
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(24):121-130
ObjectiveTo explore the effects and mechanisms of modified Dahuang Huanglian Xiexintang on hepatic oxidative stress injury in type 2 diabetes mellitus (T2DM) rats based on the nuclear factor erythroid 2 related factor 2 (Nrf2)/heme oxygenase-1 (HO-1) axis. MethodSix ZDF (fa/+) rats were as assigned to the blank group, and 30 ZDF (fa/fa) rats were used to induce the T2DM model by feeding a high-fat diet. After successful modeling, the rats were randomly divided into the model group, metformin group (0.18 g·kg-1), and low, medium, and high dose groups of modified Dahuang Huanglian Xiexintang (0.54, 1.08, 2.16 g·kg-1), with six rats in each group. After 12 weeks of drug intervention, the body mass, liver mass, fasting blood glucose (FBG), and oral glucose tolerance test (OGTT) levels were measured. Serum total cholesterol (TC), triglycerides (TG), high-density lipoprotein cholesterol (HDL), low-density lipoprotein cholesterol (LDL), alanine aminotransferase (ALT), and aspartate aminotransferase (AST) levels were detected using an automatic biochemical analyzer. The pathological changes of liver tissue were observed by hematoxylin-eosin (HE) staining. Enzyme-linked immunosorbent assay (ELISA) was used to detect the activity of superoxide dismutase (SOD), reactive oxygen species (ROS), glutathione peroxidase (GSH-Px), and the level of malondialdehyde (MDA) in liver tissues. Immunohistochemistry was used to detect the expression of Nrf2 in the liver. Real time quantitative polymerase chain reaction (Real-time PCR) and Western blot were used to detect the mRNA and protein expression levels of Nrf2 and HO-1 in liver tissues. ResultCompared with the normal group, the model group showed a significant increase in body mass, liver mass, and liver index (P<0.01). Compared with the model group, the metformin group and the medium and high dose groups of modified Dahuang Huanglian Xiexintang showed a significant decrease in body weight, liver mass, and liver index (P<0.01). Compared with the normal group, the model group showed significantly increased TC, TG, and LDL levels (P<0.01), and significantly decreased HDL levels (P<0.01). Compared with the model group, the metformin group and all doses of modified Dahuang Huanglian Xiexintang showed significantly reduced TC levels (P<0.01), and significantly reduced TG levels (P<0.05). The medium and high dose groups of modified Dahuang Huanglian Xiexintang showed significantly reduced LDL levels (P<0.05). The metformin group and all doses of modified Dahuang Huanglian Xiexintang showed significantly increased HDL levels (P<0.05). Compared with the normal group, the model group showed significantly increased ALT and AST activities (P<0.01). Compared with the model group, all doses of modified Dahuang Huanglian Xiexintang and the metformin group showed significantly reduced ALT activities (P<0.05) and significantly reduced AST activities (P<0.01). Compared with normal group, the model group showed significantly increased FBG at all time points (P<0.01). Compared with the model group, the metformin group and all doses of modified Dahuang Huanglian Xiexintang showed significantly reduced FBG at 8, 10, 12 weeks. The OGTT results showed that compared with the normal group, the model group had significantly increased blood glucose at all time points (P<0.01). Compared with the model group, the metformin group showed significantly reduced blood glucose at all time points (P<0.01), and the medium and high dose groups of modified Dahuang Huanglian Xiexintang showed significantly reduced blood glucose at 90, 120 min (P<0.01). HE pathology showed clear and regular liver cell structure in the normal group, while the model group showed disordered liver cell structure with visible fat vacuoles and a large number of deformed necrotic cells. The liver tissue structure improved in the metformin group and all doses of modified Dahuang Huanglian Xiexintang, with fewer necrotic cells. Compared with the normal group, the model group showed significantly reduced SOD and GSH-Px levels (P<0.01), and significantly increased ROS and MDA levels (P<0.01). Compared with the model group, the metformin group and all doses of modified Dahuang Huanglian Xiexintang showed significantly increased SOD and GSH-Px levels (P<0.01), and significantly reduced MDA levels (P<0.01). The medium and high dose groups of modified Dahuang Huanglian Xiexintang showed significantly reduced ROS levels (P<0.05). Compared with the normal group, the model group showed significantly reduced Nrf2 and HO-1 mRNA expression levels (P<0.01). Compared with the model group, the metformin group and the medium and high dose groups of modified Dahuang Huanglian Xiexintang showed significantly increased Nrf2 and HO-1 mRNA expression levels (P<0.05). Immunohistochemistry showed that compared with the normal group, the model group had significantly reduced positive expression of Nrf2 and HO-1 (P<0.05). Compared with the model group, the metformin group and all doses of modified Dahuang Huanglian Xiexintang showed increased positive expression of Nrf2 and HO-1, with a significant increase in brown-yellow granules around the cell nucleus (P<0.05). Western blot results showed that compared with the normal group, the model group had significantly reduced protein expression of Nrf2 and HO-1 (P<0.01). Compared with the model group, the metformin group and all doses of modified Dahuang Huanglian Xiexintang showed significantly increased protein expression of Nrf2 and HO-1 (P<0.01). ConclusionModified Dahuang Huanglian Xiexintang can significantly improve the general condition and pathological changes of liver tissues in T2DM model rats. This improvement is likely achieved through ameliorating hepatic oxidative stress injury via regulating the Nrf2/HO-1 axis.


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