1.Exploration of Mechanism of Gegen Qinliantang in Improving Skeletal Muscle Insulin Resistance Based on Transcriptomics
Weinan LIU ; Jiaxiang YU ; Hanwen ZHANG ; Jiayi JING ; Jinning TONG ; Wenshun ZHANG ; Yi WU
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(4):29-40
ObjectiveTo investigate the mechanism by which Gegen Qinliantang(GQT) improves skeletal muscle insulin resistance. MethodsThe db/m mice were used as the normal group, while db/db mice were assigned to a model group, low-dose (3.12 g·kg-1), medium-dose (6.24 g·kg-1), and high-dose (12.48 g·kg-1) GQT groups, and a Western medicine group (semaglutide, 0.045 mg·kg-1),n=6 in each group. All groups received corresponding interventions. Intraperitoneal glucose tolerance test (IPGTT), intraperitoneal insulin tolerance test (IPITT), and hematoxylin-eosin (HE) staining were used to evaluate insulin resistance and therapeutic efficacy. Serum lipid levels were measured using an automatic biochemical analyzer, and apoptosis in skeletal muscle was assessed via TUNEL assay. Transcriptome sequencing combined with gene ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) analyses was performed to identify differentially expressed genes (DEGs). Real-time quantitative polymerase chain reaction (Real-time PCR) was used to validate gene expression. Molecular docking was applied to evaluate the binding patterns between active components of GQT and key regulatory genes to elucidate pharmacological mechanisms. ResultsCompared with the model group, the medium-dose and high-dose GQT groups showed significantly reduced fasting blood glucose (FBG) levels (P<0.01). Triglycerides (TG), total cholesterol (TC), and low-density lipoprotein cholesterol (LDL-C) were markedly decreased (P<0.01), while high-density lipoprotein cholesterol (HDL-C) was significantly increased (P<0.01). IPGTT, IPITT, and HE staining demonstrated that GQT enhanced insulin sensitivity and restored skeletal muscle morphology. GQT also alleviated apoptosis in skeletal muscle tissue. Transcriptome analysis revealed that GQT primarily affected biological processes such as oxidative phosphorylation, metabolic pathways, cellular processes, and protein binding. Real-time PCR results showed that CBR2, CDK6, F830016B08Rik, IL-1β, Rab27b, and COLEC12 were key regulatory genes. Molecular docking demonstrated that CBR2, IL-1β, Rab27b, and COLEC12 formed stable binding with the main active components of GQT. The therapeutic effects of high- and medium-dose GQT were comparable to those of the semaglutide group. ConclusionGQT improves skeletal muscle insulin resistance, potentially by regulating apoptosis as part of its underlying biological mechanism.
2.Salidroside exerts cytoprotective effects on bone endothelial progenitor cells via the AMPK pathway in atherosclerotic mouse model
Fang JIA ; Mengfei WANG ; Sifan FEI ; Jiayi XU ; Tianhong YU ; Lin ZHU ; Min ZHOU
Acta Universitatis Medicinalis Anhui 2026;61(4):653-661
ObjectiveTo investigate the effects of salidroside (SAL) on the impaired bioactivity of endothelial progenitor cells (EPCs) in atherosclerotic (As) mice and the potential mechanisms regarding AMP-activated protein kinase (AMPK). MethodsAtherosclerosis was induced in 8-week-old male ApoE-/- mice with high-fat diet. Intragastric administration of SAL was given to one mice group to investigate the effects of SAL on aortic plaque burden, plasma NO level, the migration and angiogenic capabilities of bone marrow-derived EPCs (BM-EPCs). The proliferation, migration and vasculogenic properties of EPCs isolated from As mice were investigated in vitro. AMPK-sh-RNA or the AMPK inhibitor Compound C was used to investigate the role of AMPK/Akt/eNOS pathway in the regulatory effects of SAL. ResultsCompared with As group, NO level was significantly elevated in SAL group. The sizes of atherosclerotic plaques at the aortic root were reduced with smaller lipid cores in SAL group compared with As group. Moreover, the migration and angiogenesis capacity of EPCs markedly decreased in As mice, while SAL treatment reversed these impairments. Incubation with SAL at concentrations of 20, 40, and 80 μmol/L for 48 hours significantly promoted the proliferation, migration, and angiogenesis of EPCs. AMPK-sh-RNA transfection abrogated the 20 μmol/L SAL improvement in EPC biological activities. Western blot analysis further demonstrated that treatment with Compound C blocked the activation of AMPK/Akt/eNOS signaling pathway induced by SAL. ConclusionSAL upregulates the biological functions of EPCs through activating the AMPK/Akt/eNOS signaling pathway, thereby ameliorating EPC dysfunction during the pathological progression of atherosclerosis.
3.Risk assessment analysis of infectious disease prevention and control in schools of Shangcheng District, Hangzhou
YAO Ying, YU Kuangming, SUN Jiayi, JIANG Siqing, WANG Hui
Chinese Journal of School Health 2025;46(6):868-872
Objective:
To establish a risk assessment system for infectious disease prevention and control in schools in Shangcheng District, Hangzhou and determine risk levels for each school, and propose corresponding risk management measures, so as to provide a scientific reference for infectious disease prevention and control in primary and secondary schools.
Methods:
Based on the Failure Mode and Effects Analysis (FMEA) method, potential failure analysis and current situation investigation of infectious disease prevention and control risks were conducted in 110 primary and secondary schools from 2022 to 2024 in Shangcheng District, Hangzhou. Risk levels were classified using K-Means cluster analysis.
Results:
Through expert panel discussions using FMEA, 6 first level indicators and 28 second level indicators were identified. The top three risk priority numbers were implementation of required prevention and control measures for clustered infectious disease outbreaks in schools in the past three years ( 189.00 ), student morning/afternoon health checks (168.00), and reporting status of clustered infectious disease outbreaks in schools in the past three years (144.00). The comprehensive prevention scores of schools ranged from 61.00 to 98.00 (mean: 87.40 ). There were no statistically significant differences in the average scores(primary school: 88.17±7.39, nine year consistent education: 86.26±7.68, junior high school: 85.55±8.20, and high school: 88.72±4.91) and risk level distribution of schools with different educational stages( F/H=0.95,1.47, P >0.05).K-Means cluster analysis divided the schools into 5 risk levels with cluster centers at 93.25, 85.78, 79.69, 70.29, 61.00 ( F=309.21, P <0.05), with 80% of schools classified as low risk or below.
Conclusion
The infectious disease prevention and control risk assessment system for primary and secondary schools can be established, and hierarchical management can be conducted according to school risk levels, thereby improving the efficiency and effectiveness of school infectious disease prevention and control, and enhancing the precision and sustainability of prevention efforts.
4.Research progress on organizational well-being among nurses
Jiayi LIU ; Ping WU ; Wanchen YU ; Shanshan WANG
Chinese Journal of Modern Nursing 2025;31(35):4869-4875
Organizational well-being refers to individuals' perceptions of various cultural and organizational characteristics within an organization. It not only impacts the physical and mental health of nurses but also influences the quality of care and the development of the nursing workforce. However, this concept has yet to receive sufficient attention from healthcare institutions and nursing professionals. This review systematically examines the concept, theoretical models, measurement tools, influencing factors, and strategies for enhancement of organizational well-being among nurses. It aims to offer a reference for future research and practical implementation of organizational well-being in the nursing field.
5.Blended team-based learning in the course of clinical reasoning in general practice
Jiayi ZHAI ; Yuan LU ; Linlin MA ; Dehua YU
Chinese Journal of Medical Education Research 2025;24(1):98-103
Objective:To investigate the application of blended team-based learning (BTBL) in improving the clinical reasoning ability of general practitioners from different sources.Methods:From September to December in 2021, 52 postgraduates of general practice in Tongji University School of Medicine were selected as subjects, and according to their study background and practice experience, they were divided into residency training group, community group, and specialist group. BTBL was adopted for all students in the course of clinical reasoning in general practice, and a 4-station objective structured clinical examination (OSCE) test was conducted before and after the course to evaluate teaching effectiveness from the aspects of medical history collection, physical examination, doctor-patient communication, and medical record writing. SPSS 22.0 was used to perform a statistical analysis of data. Continuous data were expressed as mean±standard deviation, and an analysis of variance or the Kruskal-Wallis test was used for comparison between groups; the paired samples t-test or the Wilcoxon signed rank sum test was used for comparison of normally distributed or non-normally distributed data within each group. Categorical data were expressed as frequency and percentage. Results:There was a significant change in the score of physical examination after the course in the community group (44.88±9.17 vs. 78.06±12.11, t=-12.49, P<0.001), the specialist group (45.85±8.18 vs. 68.65±13.10, t=-6.43, P<0.001), and the residency training group (42.38±15.30 vs. 76.44±16.46, t=-5.98, P<0.001). There was a significant change in the score of doctor-patient communication after the course in the community group (63.00±13.84 vs. 78.69±7.10, t/Z=-4.33, P<0.05) and the residency training group (60.00±15.50 vs. 70.88±6.44, t/Z=-2.12, P<0.05). There was also a significant change in the score of medical record writing after the course in the community group (60.19±17.96 vs. 79.69±14.25, t=-2.96, P<0.05), the specialist group (47.77±12.59 vs. 80.31±12.93, t=-6.26, P<0.05), and the residency training group (37.00±15.50 vs. 75.88±15.88, t=-7.25, P<0.05). The score of medical record writing before the course was 60.19±17.96 in the community group, 47.77±12.59 in the specialist group, and 37.00±15.50 in the residency training group, with a significant difference between the three groups ( χ2=13.04, P=0.001); after the course, the score of medical record writing was 78.69±7.10 in the community group, 63.46±19.40 in the specialist group, and 70.88±6.44 in the residency training group, with a significant difference between the three groups ( χ2=10.13, P=0.006). Conclusions:In the course of clinical reasoning in general practice, BTBL can improve teaching efficiency, save teaching resources, and play the role of promoting strengths and avoiding weaknesses.
6.Adolescent health risks in offspring conceived through assisted reproductive technology: mechanisms and research status
Jiayi GAO ; Tian TIAN ; Fang LIU ; Yu FU ; Yuanyuan WANG ; Jie QIAO
Chinese Journal of Reproduction and Contraception 2025;45(4):403-408
The wide application of assisted reproductive technology (ART) has brought the hope of fertility to infertile couples worldwide. However, with the gradual popularization of ART, the long-term health status of ART children has attracted extensive attention from society. Adolescence is a critical developmental period for individuals to transition from childhood to adulthood, with significant physical and psychological changes, so the health status of ART offspring during this period has a profound impact on their overall future health. This article reviews the existing studies, focusing on the effects of ART on multiple aspects of adolescent health, especially growth and development, cardiovascular health, endocrine function, fertility, cancer risk, atopic diseases, mental health, epigenetic changes and other aspects. The possible mechanisms leading to these health problems, including genetic factors, environmental exposures, and the long-term effects of early life interventions, were explored. Future research should continue to explore the long-term effects of ART on the health of offspring and further clarify the mechanisms of these effects, so as to provide a scientific basis for the development of effective prevention and intervention measures.
7.Application of Cytb and 12S rRNA in wildlife species identification for forensic science
Dezhi JIANG ; Yaxin ZHANG ; Yu ZANG ; Maolei AN ; Zan ZHANG ; Chengcheng QIU ; Yaoheng JIANG ; Wei SONG ; Hong ZHAO ; Kun XIE ; Jiayi CHEN ; Riga WU
Chinese Journal of Forensic Medicine 2025;40(3):308-311,322
Objective To analyze and compare the efficacy of DNA barcode,i.e.,Cytochrome b(Cytb)and 12S ribosomal RNA(12S rRNA)gene sequences,in the species identification of wildlife.Methods DNA extraction,quantification,PCR amplification of Cytb and 12S rRNA gene fragments,Sanger sequencing,and sequence alignment analysis were performed on ten wildlife samples.Results Both gene fragments were successfully amplified in six samples,while Cytb alone was successfully amplified in 1 sample,and 12S rRNA alone in 3 samples.Sequence analysis indicated that Cytb enabled species-level identification for 6 samples(Gallinula chloropus,Streptopelia orientalis,Phasianus colchicus,Falco naumanni,Myiopsitta monachus and Lynx lynx)and genus-level identification for 1 sample(Lepus).In contrast,12S rRNA achieved species-level identificaggion for 8 samples(Gallinula chloropus,Lepus sinensis,Phasianus colchicus,Myiopsitta monachus,Muntiacus reevesi,Macaca mulatta and Lynx lynx),representing seven species,and genus-level identification for 1 sample(Falco).However,by combining Cytb and 12S rRNA,all samples could be identified to the species level.Conclusion When applying DNA barcodes to wildlife identification,the Cytb and 12S rRNA gene regions analyzed here can effectively identify common species such as Gallinula chloropus and Streptopelia orientalis,but face difficulties in distinguishing closely related species within the same genus.Therefore,when conducting wildlife species identification,it is recommended to use two or more DNA barcode markers.
8.Role of interferon regulatory factor 3 in renal fibrosis in a mouse model of renal ischemia-reperfusion injury
Shanlan WU ; Xiaoqing GUO ; Jiayi NIE ; Shuangquan CHEN ; Wengqiang YU ; Hua LIANG
Chinese Journal of Anesthesiology 2025;45(3):353-357
Objective:To evaluate the role of interferon regulatory factor 3 (IRF3) in renal fibrosis in a mouse model of renal ischemia-reperfusion injury.Methods:Twelve male C57BL/6J wild-type mice and 12 macrophage IRF3 conditional knockout C57BL/6J mice, aged 8-10 weeks, weighing 20-25 g, were divided into 2 groups ( n=6 each) using a random number table method: wild-type sham operation group (WT-Sham group) and wild-type renal ischemia-reperfusion injury group (WT-I/R group); IRF3 conditional knockout sham operation group (cKO-Sham group) and IRF3 conditional knockout I/R group (cKO-I/R group). The model of renal I/R injury was established by occluding bilateral renal pedicles for 45 min followed by reperfusion in anesthetized animals. The orbital blood samples and renal tissues were collected at 14 days of reperfusion for determination of the concentrations of blood urea nitrogen (BUN) and creatinine (Cr) in serum, expression of fibronectin, collagen-I, alpha-smooth muscle actin (α-SMA) (by immunofluorescence), F4/80-α-SMA double positive cell count, and mRNA expression of interleukin-6 (IL-6), interleukin-1β (IL-1β), tumor necrosis factor-α (TNF-α) and transforming growth factor-β1 (TGF-β1) in renal tissues (by real-time polymerase chain reaction) and for observation of pathological changes which were scored. The area of renal fibrosis was measured. Results:For two types of mice, compared with group Sham, the levels of serum BUN and Cr, area of renal fibrosis and renal injury score were significantly increased, the expression of fibronectin, COL-Ⅰ and α-SMA protein and IL-6, IL-1β, TNF-α and TGF-β1 mRNA was up-regulated, and the F4/80-α-SMA dual positive cell count was increased in group WT-I/R ( P<0.05). Compared with group WT-I/R, the concentrations of BUN and Cr in serum, area of renal fibrosis and renal injury score were significantly decreased, the expression of fibronectin, COL-Ⅰ and α-SMA protein and IL-6, IL-1β, TNF-α and TGF-β1 mRNA was down-regulated, and the F4/80-α-SMA dual positive cell count was decreased in cKO-I/R group ( P<0.05). Conclusions:IRF3 is involved in the process of renal fibrosis in a mouse model of renal ischemia-reperfusion injury, and the mechanism may be associated with the promotion of inflammatory responses and the transformation of macrophages into myofibroblasts.
9.Blended team-based learning in the course of clinical reasoning in general practice
Jiayi ZHAI ; Yuan LU ; Linlin MA ; Dehua YU
Chinese Journal of Medical Education Research 2025;24(1):98-103
Objective:To investigate the application of blended team-based learning (BTBL) in improving the clinical reasoning ability of general practitioners from different sources.Methods:From September to December in 2021, 52 postgraduates of general practice in Tongji University School of Medicine were selected as subjects, and according to their study background and practice experience, they were divided into residency training group, community group, and specialist group. BTBL was adopted for all students in the course of clinical reasoning in general practice, and a 4-station objective structured clinical examination (OSCE) test was conducted before and after the course to evaluate teaching effectiveness from the aspects of medical history collection, physical examination, doctor-patient communication, and medical record writing. SPSS 22.0 was used to perform a statistical analysis of data. Continuous data were expressed as mean±standard deviation, and an analysis of variance or the Kruskal-Wallis test was used for comparison between groups; the paired samples t-test or the Wilcoxon signed rank sum test was used for comparison of normally distributed or non-normally distributed data within each group. Categorical data were expressed as frequency and percentage. Results:There was a significant change in the score of physical examination after the course in the community group (44.88±9.17 vs. 78.06±12.11, t=-12.49, P<0.001), the specialist group (45.85±8.18 vs. 68.65±13.10, t=-6.43, P<0.001), and the residency training group (42.38±15.30 vs. 76.44±16.46, t=-5.98, P<0.001). There was a significant change in the score of doctor-patient communication after the course in the community group (63.00±13.84 vs. 78.69±7.10, t/Z=-4.33, P<0.05) and the residency training group (60.00±15.50 vs. 70.88±6.44, t/Z=-2.12, P<0.05). There was also a significant change in the score of medical record writing after the course in the community group (60.19±17.96 vs. 79.69±14.25, t=-2.96, P<0.05), the specialist group (47.77±12.59 vs. 80.31±12.93, t=-6.26, P<0.05), and the residency training group (37.00±15.50 vs. 75.88±15.88, t=-7.25, P<0.05). The score of medical record writing before the course was 60.19±17.96 in the community group, 47.77±12.59 in the specialist group, and 37.00±15.50 in the residency training group, with a significant difference between the three groups ( χ2=13.04, P=0.001); after the course, the score of medical record writing was 78.69±7.10 in the community group, 63.46±19.40 in the specialist group, and 70.88±6.44 in the residency training group, with a significant difference between the three groups ( χ2=10.13, P=0.006). Conclusions:In the course of clinical reasoning in general practice, BTBL can improve teaching efficiency, save teaching resources, and play the role of promoting strengths and avoiding weaknesses.
10.Targeting PDE4B with Ditan Decoction Inhibits Neutrophil Infiltration to Mitigate Neurovascular Unit Injury
Shuhong YU ; Sijie LIU ; Jiayi ZHU ; Ling FAN ; Jiamei GU ; Hao HUANG ; Yi LUO
Journal of Nanjing University of Traditional Chinese Medicine 2025;41(3):306-312
OBJECTIVE To investigate the neuroprotective effects of Ditan Decoction(DTD)on ischemic stroke.METHODS A mouse middle cerebral artery occlusion(MCAO)model was used to induce cerebral ischemia and assess the role of DTD in post-stroke NVU injury.DTD was gavaged once a day for 3 days after MCAO.Transwell neutrophil chemotaxis assay was used to explore the role of DTD in the neutrophil chemotaxis.RESULTS In the MCAO model,DTD treatment significantly reduced infarct volume(P<0.01)and attenuated blood-brain barrier disruption,as evidenced by decreased IgG leakage and preserved laminin expression(P<0.05).Furthermore,DTD suppressed neutrophil infiltration into ischemic brain tissue,as demonstrated by reduced neutrophil elastase(P<0.01)and myeloperoxidase(P<0.05)levels.Mechanistically,DTD inhibited neutrophil chemotaxis in a dose-dependent manner and downregulated phosphodiesterase 4B(PDE4B),a key regulator of neutrophil migration(P<0.05).Molecular docking analysis i-dentified four active DTD components-apigenin,vitexin,chlorogenic acid,and orientin-with strong binding affinities to PDE4B(bind-ing energies<-5 kcal·mol-1),suggesting their potential role in mediating DTD's therapeutic effects.CONCLUSION These find-ings highlight DTD as a promising intervention for ischemic stroke,targeting NVU preservation and PDE4B-dependent neutrophil mod-ulation.


Result Analysis
Print
Save
E-mail