1.Effect and mechanism of Tangzhi formula in improving glucose and lipid metabolism in type 2 diabetic rats
Jing CHEN ; Min BAI ; Fubin SHANG ; Runsheng YU ; Yan SU ; Jianfeng WANG ; Xiangdong ZHU
China Pharmacy 2026;37(16):2112-2118
OBJECTIVE To investigate the effect and mechanism of Tangzhi formula(TZF) on improving glucose and lipid metabolism disorders in type 2 diabetes mellitus (T2DM) rats.METHODS Thirty SPF-grade SD rats were used to establish a T2DM rat model through high-fat diet feeding combined with intraperitoneal injection of streptozotocin. After successful modeling, the rats were divided into the model group, metformin group (positive control, 0.18 g/kg), and TZF low-, medium-, and high-dose groups (5, 10, and 20 g/kg), with 6 rats in each group. An additional 6 rats were selected as the blank group. The rats in each group were orally administered the corresponding volume of drug solution or saline, and continuous dosing was performed for 6 weeks, once daily. Fasting blood glucose (FBG), area under the curve of oral glucose tolerance test (OGTT-AUC), area under the curve of intraperitoneal insulin tolerance test (IPITT-AUC), serum total cholesterol (TC), triglyceride (TG), low-density lipoprotein cholesterol (LDL-C), and high-density lipoprotein cholesterol (HDL-C) levels were measured. Hematoxylin-eosin (HE) staining and oil red O staining were used to observe hepatic pathological morphology and lipid deposition. Differentially expressed proteins in liver tissues were screened by proteomics analysis, and key proteins in signaling pathways were verified by Western blot and immunofluorescence staining.RESULTS Compared with the blank group, the levels of FBG, OGTT-AUC, IPITT-AUC, LDL-C, TG, and TC in the model group were significantly increased ( P <0.05), while HDL-C level was significantly decreased ( P <0.05); the liver tissues showed disordered hepatic cords, punctate necrosis of hepatocytes, and significant lipid deposition, the NAFLD activity score and positive area of lipid droplets were significantly increased( P <0.05). Compared with the model group, the above indicators in TZF low-, medium-, and high-dose groups and metformin group were significantly reversed ( P <0.05); hepatic pathological injury and lipid deposition were alleviated. Proteomics results showed that a total of 442 differentially expressed proteins were screened between the model group and the blank group, and 358 differentially expressed proteins were screened between the TZF high-dose group and the model group. Among these differentially expressed proteins, multiple proteins closely related to glucose and lipid metabolism showed a reversal trend after TZF intervention. Kyoto Encyclopedia of Genes and Genomes pathway enrichment analysis showed that the peroxisome proliferator-activated receptor (PPAR) signaling pathway was significantly enriched. The validation experiment results showed that TZF could significantly up-regulate the expression of PPARα, PPARγ, and apolipoprotein A1 (ApoA1) in rat liver tissues ( P <0.05), and down-regulate the expression of stearoyl-CoA desaturase 1 (SCD1) and perilipin 2 (PLIN2) ( P <0.05).CONCLUSIONS TZF can improve glucose and lipid metabolism disorders in T2DM rats; its mechanism may be related to the activation of the PPAR signaling pathway and the regulation of downstream lipid metabolism-related proteins SCD1, PLIN2, and ApoA1.
2.Role of TLR4-mediated NETs formation in isoproterenol-induced heart failure in aged mice
Huan LIU ; Xiangdong CHEN ; Zhilin WU
Acta Universitatis Medicinalis Anhui 2026;61(4):699-705
ObjectiveTo examine the impact of Toll-like receptor 4 (TLR4)-mediated neutrophil extracellular traps (NETs) formation on isoproterenol (ISO)-induced heart failure (HF) in aged mice. MethodsThe mice were randomly divided into Control group, Model group, TAK-242 (TLR4 inhibitor) group, LPS (TLR4 agonist) group and LPS+DNaseⅠ (NETs inhibitor) group, with 8 mice in each group. The HF model was established by continuous infusion of ISO through an osmotic pump, and TAK-242, LPS, and LPS+DNaseⅠ interventions were administered during the last week of infusion for 7 consecutive days. ELISA was used to detect the N-terminal pro-B-type natriuretic peptide (NT-pro BNP), cardiac troponin I (cTnI), interleukin-1β (IL-1β), interleukin-6 (IL-6), tumor necrosis factor-α (TNF-α), and serum and myocardial tissue myeloperoxidase-DNA (MPO-DNA) and neutrophil elastase-DNA (NE-DNA) levels. HE staining was used to observe the pathological changes of myocardial tissue. Masson staining was used to observe the deposition of collagen fibers in myocardial tissue. Immunofluorescence was used to observe the colocalization of Ly6G and MPO in myocardial tissue. The protein expressions of TLR4, MPO, NE and cit-H3 in myocardial tissue were detected by Western blot. ResultsCompared with the Control group, the end-diastolic interventricular septal thickness (IVSD), left ventricular end-diastolic diameter (LVEDD) and left ventricular end-systolic diameter (LVESD) in the Mode group significantly increased (P<0.01), fractional shortening (FS) and ejection fraction (EF) significantly decreased (P<0.01), and the myocardial structure was significantly damaged. The myocardial collagen fiber precipitation, serum NT-pro BNP, cTnI, IL-1β, IL-6 and TNF-α contents, MPO-DNA and NE-DNA contents in serum and myocardial tissue significantly increased (P<0.01). The co-localization of Ly6G and MPO and the expression of TLR4, MPO, NE and cit-H3 proteins in myocardial tissue significantly increased (P<0.01). After TAK-242 intervention, the above indicators were significantly reversed, while the injury was further aggravated in LPS group. DNaseⅠ treatment could partially alleviate the deterioration of myocardial structure and function induced by LPS. ConclusionTLR4 and NETs are abnormally elevated in the myocardial tissue of aged HF mice. Treatment with the TLR4 inhibitor TAK-242 effectively suppresses NET formation, attenuates inflammatory responses, and enhances cardiac function in aged HF mice.
3.PAGE5 in Promoting Breast Cancer Invasion and Hepatic Metastasis via Regulation of the PI3K/AKT/MMP1 Axis
Zenghui LIU ; Ying LU ; Xiaoli LIANG ; Wanna CHEN ; Xiangdong XU ; Hongbiao XU ; Zhen SHAN
Journal of Sun Yat-sen University(Medical Sciences) 2026;47(5):833-842
ObjectiveThis study aimed to elucidate the specific molecular mechanism by which PAGE5 promotes breast cancer cell invasion and hepatic metastasis through regulating the PI3K/AKT signaling pathway and its downstream effector, matrix metalloproteinase 1 (MMP1). MethodsBioinformatics analysis using the TCGA database was performed to evaluate PAGE5 expression in metastatic breast cancer tissues. The effects of PAGE5 on the proliferation, migration, and invasion capabilities of breast cancer cells were analyzed using CCK-8, EdU, Transwell, and wound healing assays. A splenic injection hepatic metastasis model in NOD-SCID mice was employed to validate the impact of PAGE5 on breast cancer liver metastasis. Transcriptome sequencing and KEGG enrichment analysis were conducted to identify potential signaling pathways regulated by PAGE5. Western blot was used to detect AKT phosphorylation levels. Quantitative real-time polymerase chain reaction (qPCR) was applied to screen and validate downstream target molecules of PAGE5. ResultsBioinformatic analysis revealed that PAGE5 expression was significantly upregulated in distant metastasis of breast cancer. Both in vitro and in vivo experiments confirmed that PAGE5 overexpression markedly enhanced the migration and invasion abilities of breast cancer cells and promoted the formation of liver metastatic lesions, whereas PAGE5 knockdown suppressed breast cancer liver metastasis (P<0.000 1). Transcriptome sequencing and KEGG enrichment analysis indicated that PAGE5 significantly activated the PI3K-AKT signaling pathway (P=0.028 5). Western blot confirmed that PAGE5 upregulated p-AKT levels, which could be reversed by MK2206. The qPCR results confirmed that MMP1 is a key downstream effector of PAGE5, and its expression can be inhibited by MK2206 (P<0.000 1). ConclusionsThis study preliminarily demonstrates that PAGE5 can activate the PI3K/AKT signaling pathway and mediate the invasion and liver metastasis of breast cancer through MMP1.
4.PAGE5 in Promoting Breast Cancer Invasion and Hepatic Metastasis via Regulation of the PI3K/AKT/MMP1 Axis
Zenghui LIU ; Ying LU ; Xiaoli LIANG ; Wanna CHEN ; Xiangdong XU ; Hongbiao XU ; Zhen SHAN
Journal of Sun Yat-sen University(Medical Sciences) 2026;47(5):833-842
ObjectiveThis study aimed to elucidate the specific molecular mechanism by which PAGE5 promotes breast cancer cell invasion and hepatic metastasis through regulating the PI3K/AKT signaling pathway and its downstream effector, matrix metalloproteinase 1 (MMP1). MethodsBioinformatics analysis using the TCGA database was performed to evaluate PAGE5 expression in metastatic breast cancer tissues. The effects of PAGE5 on the proliferation, migration, and invasion capabilities of breast cancer cells were analyzed using CCK-8, EdU, Transwell, and wound healing assays. A splenic injection hepatic metastasis model in NOD-SCID mice was employed to validate the impact of PAGE5 on breast cancer liver metastasis. Transcriptome sequencing and KEGG enrichment analysis were conducted to identify potential signaling pathways regulated by PAGE5. Western blot was used to detect AKT phosphorylation levels. Quantitative real-time polymerase chain reaction (qPCR) was applied to screen and validate downstream target molecules of PAGE5. ResultsBioinformatic analysis revealed that PAGE5 expression was significantly upregulated in distant metastasis of breast cancer. Both in vitro and in vivo experiments confirmed that PAGE5 overexpression markedly enhanced the migration and invasion abilities of breast cancer cells and promoted the formation of liver metastatic lesions, whereas PAGE5 knockdown suppressed breast cancer liver metastasis (P<0.000 1). Transcriptome sequencing and KEGG enrichment analysis indicated that PAGE5 significantly activated the PI3K-AKT signaling pathway (P=0.028 5). Western blot confirmed that PAGE5 upregulated p-AKT levels, which could be reversed by MK2206. The qPCR results confirmed that MMP1 is a key downstream effector of PAGE5, and its expression can be inhibited by MK2206 (P<0.000 1). ConclusionsThis study preliminarily demonstrates that PAGE5 can activate the PI3K/AKT signaling pathway and mediate the invasion and liver metastasis of breast cancer through MMP1.
5.Treatment of Meibomian Gland Dysfunction-Associated Dry Eye from the Perspective of "Promoting the Flow of Dampness to Moisten Dryness"
Dan WANG ; Wen LIU ; Peijuan WU ; Zhimin LIU ; Ling CAI ; Xiangdong CHEN
Journal of Traditional Chinese Medicine 2026;67(21):2339-2343
It is considered that although meibomian gland dysfunction (MGD)-associated dry eye is mainly manifested by signs of dryness such as ocular dryness and burning sensation, it may also be accompanied by signs of dampness, including thick meibomian secretions, epigastric and abdominal fullness, and a greasy tongue coating, thus presenting a pattern characterized by the coexistence of dryness and dampness. Based on LIU Wansu's theory of "promoting the flow of dampness to moisten dryness", this disease is understood from the perspectives of an imbalance between dryness and dampness in the middle jiao (焦) and abnormal distribution of body fluids. For dampness and turbidity constraint and stagnation, treatment should focus on diffusing the lung, fortifying the spleen, promoting the flow of dampness, and resolving turbidity, with modified Sanren Decoction (三仁汤) combined with Shenling Baizhu Powder (参苓白术散) commonly used. For steaming of dampness-heat, treatment should focus on clearing heat, draining dampness, and moistening dryness with sweet and cool medicinals, with modified Jinzhi Qingmu Formula (金栀清目方) combined with Shashen Maidong Decoction (沙参麦冬汤) commonly used. For dryness-toxin damaging the physical form, treatment should focus on nourishing yin and blood, unblocking the collaterals, and resolving toxins, with modified Qiju Dihuang Pill (杞菊地黄丸) combined with Taohong Siwu Decoction (桃红四物汤) commonly used.
6.Collection and determination of clinical issues in Clinical practice guidelines for postoperative pain management in adults ( 2024 edition) based on Delphi method
Yan WANG ; Yingying ZHAO ; Younian XU ; Yuanyuan YAO ; Jie ZHANG ; Junxian ZHAO ; Tianhu LIANG ; Yaolong CHEN ; Qinjun CHU ; Xiangdong CHEN ; Yunshui PENG ; Jianjun YANG
Chinese Journal of Anesthesiology 2025;45(7):802-807
Objective:To determine the clinical issues in the Clinical practice guidelines for postoperative pain management in adults (2024 edition). Methods:A preliminary list of clinical issues for the guidelines was developed through literature review, clinical surveys, and expert interviews. This was followed by two rounds of Delphi questionnaire surveys, with quality control and statistical analysis conducted using expert positive coefficient, mean item scores, full score ratio, coefficient of variation, Cronbach′s α coefficient, and expert authority level to finalize the list of clinical issues.Results:The experts participating in the Delphi questionnaire surveys had multidisciplinary collaborative backgrounds and regional representativeness, with a high level of authority. The overall positive coefficient of expert participation in the surveys was 78.9%. Through two rounds of the Delphi method and based on the screening criteria of a mean score ≥3.5, coefficient of variation ≤30%, and full score ratio ≥30%, 17 clinical issues were ultimately included following an expert consensus meeting.Conclusions:Through the Delphi method and rigorous quality control, the clinical issues in the Clinical practice guidelines for postoperative pain management in adults (2024 edition) are determined, laying a foundation for the subsequent development of the guidelines.
7.Epidemiological characteristics and spatiotemporal distribution of genital herpes in China, 2010-2023
Zewei CHEN ; Shiqing LIANG ; Xiaoli YUE ; Jing LI ; Jiahui ZHANG ; Xiangdong GONG
Chinese Journal of Epidemiology 2025;46(1):101-106
Objective:To understand the epidemiological characteristics and spatiotemporal distribution of genital herpes in China from 2010 to 2023 and provide evidence for the prevention and control of genital herpes.Methods:The reported data of genital herpes cases in 31 provinces (autonomous regions and municipalities) in China from 2010 to 2023 were collected from the National Notifiable Infectious Disease Reporting System of China Information System for Disease Control and Prevention. Software Joinpoint 5.2.0 was used to analyze the epidemiological characteristics of genital herpes, software ArcGIS 10.5 was used for spatial autocorrelation analysis, and software SaTScan 10.2.3 was used for spatiotemporal scanning analysis.Results:The reported incidence rate of genital herpes increased from 1.58/100 000 to 2.00/100 000 in China from 2010 to 2023, with an average annual percentage change of 0.90%. The upward trend of reported incidence rate was significant ( t=2.35, P=0.037). There was a positive spatial autocorrelation in the reported incidence of genital herpes with the global Moran's I ranging from 0.36 to 0.51 (all P<0.001). Local spatial autocorrelation analysis showed that the number of hotspots increased from 144 in 2010 to 232 in 2023, mainly distributed in provinces Zhejiang, Guangdong, Guangxi, Chongqing and Hunan. The number of hotspots in of Chongqing, Sichuan, Yunnan and Guizhou increased significantly from 7 to 57. A total of 67 spatiotemporal clusters were detected by spatiotemporal scanning analysis, mainly distributed in Guangdong from 2011 to 2015, in Zhejiang and Fujian from 2015 to 2019, and in Chongqing and Guizhou from 2019 to 2023. Conclusions:From 2010 to 2023, the reported incidence of genital herpes in China showed an upward trend, and there was an obvious spatiotemporal clustering of genital herpes. The distribution of hotspots was basically consistent with the distribution of spatiotemporal clustering areas, mainly distributed in the southeastern coastal area and southwestern region, and the spatiotemporal clustering areas gradually changed from the southeast coastal area to the southwest region.
8.A survey on the cognition of mpox expertise among relevant clinicians in China
Zewei CHEN ; Wenqian ZHU ; Yuelin WU ; Shiqing LIANG ; Xiaoli YUE ; Jing LI ; Jiahui ZHANG ; Xiangdong GONG
Chinese Journal of Epidemiology 2025;46(2):239-244
Objective:To investigate and evaluate the correct cognition and influencing factors of mpox expertise among relevant Chinese clinicians and to provide a reference for prevention and control.Methods:A cross-sectional survey was conducted among clinicians in relevant departments using a structured questionnaire compiled by ourselves through a non-random network recruitment method. The content includes demography, clinical specialties, and characteristics of medical institutions, and 37 questions to evaluate the professional cognition of mpox etiology, clinical characteristics, transmission, prevention, and control. Using the modified Bloom's cutoff point to determine the correct answer is greater than or equal to 26 entitled correct cognition. A logistic regression model was used to analyze the factors influencing the correct cognition rate.Results:A total of 4 332 clinicians in 23 provinces (autonomous regions, municipality) in China were investigated by online questionnaires and 4 276 effective questionnaires were collected, with an effective rate of 98.71%. The mean age of the respondents was (39.46±9.54) years old, 61.18% were female. The overall correct cognition rate of mpox expertise was 62.04% (95% CI: 60.59%-63.50%), the correct cognition rates of mpox etiology, clinical characteristics, transmission, prevention and control were 48.25% (95% CI: 46.68%-49.82%), 78.66% (95% CI: 77.38%-79.95%), 68.56% (95% CI: 67.10%-70.02%), respectively. Multivariate logistic regression analysis showed that the relevant factors affecting the overall correct cognition of mpox expertise among Chinese clinicians included gender (female: OR=1.54, 95% CI: 1.31-1.80), region (eastern region: OR=1.46, 95% CI: 1.18-1.79; midwestern region: OR=1.24, 95% CI: 1.04-1.49), professional title (deputy senior: OR=1.43, 95% CI:1.16-1.76; senior: OR=1.72, 95% CI:1.30-2.28), the clinical field (the clinical fields of dermatology and venereal diseases: OR=1.78, 95% CI: 1.42-2.23). Conclusions:The overall correct cognition rate of mpox expertise among relevant Chinese clinicians was low. It was essential to conduct mpox knowledge training for clinicians in males, northeast regions, junior professional title and the clinical fields other than dermatology and venereal diseases to improve their correct cognition rates and epidemic prevention and control ability.
9.Study on Objective Characteristics of Tongue in TCM Diagnosis of Primary Immune Thrombocytopenia
Qianqian YANG ; Xiangdong YANG ; Chuanqi LIN ; Yupeng SONG ; Ke CHEN ; Yu QIU
Chinese Journal of Information on Traditional Chinese Medicine 2025;32(11):156-162
Objective To explore the objective characteristics of tongue in primary immune thrombocytopenia(ITP);To provide references for accurate syndrome differentiation.Methods Totally 112 patients with ITP were divided into groups according to their platelet count,TCM symptoms and drug treatment lines.Infrared thermal imager,hygrometer,colorimetry and image analysis software were used to detect the temperature,humidity,colorimetry and morphology of tongue body(TB),tongue coating(TC)and sublingual vessel(SV),and analyze their characteristics.The tongue was divided into five areas:tip of tongue(T),middle of tongue(M),behind of tongue(B),middle left of tongue(ML)and middle right of tongue(MR),and its temperature was measured.Humility(H)of tongue and tongue coating were measured by hygrometer.The images of tongue body,tongue coating and sublingual collaterals were taken,and the chromaticity indexes of R,G,B,L,a,b were analyzed by Adobe Photoshop 2023.The width,length and tortuosity of sublingual collaterals were under morphological analysis.Results ① Comparison of platelet count groups:compared with 30-50 platelet count group and more than 100 platelet count group,the TB-R of 51-100 platelet count group decreased(P<0.05,P<0.01),and compared with 30-50 platelet count group,the TB-a of 51-100 platelet count group decreased(P<0.01);compared with platelet<30 group and platelet 30-50 group,the TC-H of platelet>100 group increased(P<0.05,P<0.01);compared with platelet>100 group,the length of sublingual collaterals in platelet<30 group was longer(P<0.05).② Comparison of different TCM symptom groups:compared with the bleeding group and asymptomatic group,the M and SV-B in the fatigue group decreased(P<0.05,P<0.01);compared with the asymptomatic group,the TC-b in the anxious group was significantly higher(P<0.05).③ Comparison of administration groups:compared with the Danazol group and Chinese materia medica group,the TC-H in the glucocorticoid group was significantly higher(P<0.05,P<0.01).Conclusion There are differences in tongue characteristic indexes among ITP patients with different platelet counts,TCM symptoms and drug treatment lines,which can measure of tongue indexes to provide references for accurate syndrome differentiation of ITP.
10.The Role of Intravenous Anesthetics for Neuro: Protection or Toxicity?
Kaixin WANG ; Yafeng WANG ; Tianhao ZHANG ; Bingcheng CHANG ; Daan FU ; Xiangdong CHEN
Neuroscience Bulletin 2025;41(1):107-130
The primary intravenous anesthetics employed in clinical practice encompass dexmedetomidine (Dex), propofol, ketamine, etomidate, midazolam, and remimazolam. Apart from their established sedative, analgesic, and anxiolytic properties, an increasing body of research has uncovered neuroprotective effects of intravenous anesthetics in various animal and cellular models, as well as in clinical studies. However, there also exists conflicting evidence pointing to the potential neurotoxic effects of these intravenous anesthetics. The role of intravenous anesthetics for neuro on both sides of protection or toxicity has been rarely summarized. Considering the mentioned above, this work aims to offer a comprehensive understanding of the underlying mechanisms involved both in the central nerve system (CNS) and the peripheral nerve system (PNS) and provide valuable insights into the potential safety and risk associated with the clinical use of intravenous anesthetics.
Animals
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Humans
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Anesthetics, Intravenous/adverse effects*
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Neuroprotective Agents/pharmacology*
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Propofol
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Neurotoxicity Syndromes/prevention & control*
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Central Nervous System/drug effects*
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Dexmedetomidine

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