1.Interpretation of the Guideline for Multi-dimensional and Multi-criteria Comprehensive Evaluation of Chinese Patent Medicine:weighting of evaluation indicators
Haili ZHANG ; Bin LIU ; Weili WANG ; Wenjie CAO ; Yijiu YANG ; Ziteng HU ; Yaxin CHEN ; Ning LIANG ; Huizhen LI ; Qianzi CHE ; Xingyu ZONG ; Zhao CHEN ; Yanping WANG ; Nannan SHI
China Pharmacy 2024;35(7):773-777
OBJECTIVE To provide a detailed report and interpretation of the method and results for determining the weights of the technical indicators from the “multi-dimensional and multi-criteria comprehensive evaluation index system (first edition)” stated in Guideline for Multi-dimensional and Multi-criteria Comprehensive Evaluation of Chinese Patent Medicine. METHODS Normalization calculations were performed on the comprehensive weight values calculated by the analytic hierarchy process and expert weighting method to obtain the objective weights of the indicators. RESULTS The weight results of the six primary dimensions in the current comprehensive evaluation indicator system of Chinese patent medicine showed effectiveness dimension> safety dimension>standard dimension>application dimension>scientific dimension>economic dimension, with weight values of 0.281 0, 0.268 5, 0.195 8, 0.107 3, 0.096 1 and 0.051 3 respectively, consistent with the results of most researches currently. CONCLUSIONS The process of weight determination in this indicator system is scientifically reasonable, with clear methods and clear interpretations, and is worthy of further optimization and widespread application.
2.Cadmium promotes senescence of annulus fibrosus cells via activation of PI3K/Akt signaling pathway
Xin LIU ; Man HU ; Wenjie ZHAO ; Yu ZHANG ; Bo MENG ; Sheng YANG ; Qing PENG ; Liang ZHANG ; Jingcheng WANG
Chinese Journal of Tissue Engineering Research 2024;28(8):1217-1222
BACKGROUND:Cadmium is a common environmental pollutant,which can damage multiple organs and tissues,such as the kidney and bone,but its effect on annulus fibrosus cells in the intervertebral disc has been less reported. OBJECTIVE:To investigate the effect of cadmium chloride on the senescence of annulus fibrosus cells and the role of PI3K/Akt signaling pathway. METHODS:Annulus fibrosus cells from Sprague-Dawley rat intervertebral discs were harvested and passage 3 cells were intervened with different concentrations of cadmium chloride(0,1,5,10,20 μmol/L).Cell viability and proliferation were detected by cell counting kit-8 assay.Transcriptome sequencing and Kyoto Encyclopedia of Genes and Genomes functional enrichment analysis were performed on annulus fibrosus cells with or without cadmium chloride addition.Passage 3 annulus fibrosus cells were divided into control group,cadmium chloride group and LY294002 group.Cell proliferation rate was detected by EdU method,positive cell rate was detected by senescence-associated β-galactosidase staining,and expressions of senescence-associated proteins(p16,p21 and p53)and p-Akt at protein and mRNA levels were measured by western blot,RT-PCR and immunofluorescence. RESULTS AND CONCLUSION:5 μmol/L cadmium chloride could inhibit the proliferation of annulus fibrosus cells.Results from the Kyoto Encyclopedia of Genes and Genomes functional enrichment analysis showed that the main signal transduction pathways included PI3K/Akt,cell cycle and p53 signaling pathways,which were related to cell senescence and proliferation.PI3K/Akt signaling pathways with significant differential expression were selected for validation.Compared with the control group,the EdU-positive rate was significantly decreased in the cadmium chloride group(P<0.05),while the β-galactosidase-positive rate,the expression of senescence-associated proteins(p16,p21 and p53)and p-Akt significantly increased(P<0.05).Compared with the cadmium chloride group,the EdU-positive rate and p-Akt expression were significantly decreased in the LY294002 group(P<0.05),while the β-galactosidase-positive rate and the expression of senescence-associated proteins(p16,p21 and p53)significantly increased(P<0.05).To conclude,cadmium chloride can regulate the senescence of annulus fibrosus cells by activating the PI3K/Akt signaling pathway,thereby inducing the occurrence and progression of intervertebral disc degeneration.
3.Evaluation of the Key Steps and Core Indicators of Priority Setting of Health Technology Assessment
Wenjie CAO ; Haili ZHANG ; Bin LIU ; Ning LIANG ; Yijiu YANG ; Weili WANG ; Ziteng HU ; Yanping WANG ; Nannan SHI
Chinese Hospital Management 2024;44(10):43-48
Objective The purpose is to sort out the key steps and core indicators of priority setting for health technology assessment,and provide references for the research of priority setting for health technology assessment in China.Methods To search information from the official website of the World Health Organization,the websites of international health technology assessment agencies/organizations,and CNKI,Wanfang,Pubmed,Embase and other databases related for the setting of health technology assessment priority topics,and the key steps and core indicators of the setting of priority topics were analyzed by descriptive statistical analysis.Results 21 priority setting schemes for health technology assessment were finally incorporated,and the key steps were extracted to set indicators for collecting evaluations.Ratings and rankings and review decisions.The core indicators are disease burden,economic impact and clinical/health impact.Conclusion The key steps and core indicators of international priority setting provide rich practical experience for China's health technology assessment priority setting,which should be actively used for reference to promote evidence-based and scientific decision-making of health technology assessment in China.
4.Exploration of Value Variable Selection and Measurement for Chinese Patent Medicine Based on Hedonic Price Theory
Yijiu YANG ; Haili ZHANG ; He ZHU ; Wei LI ; Zhao CHEN ; Bin LIU ; Ning LIANG ; Huizhen LI ; Tian SONG ; Wenjie CAO ; Weili WANG ; Ziteng HU ; Yanping WANG ; Sheng HAN ; Nannan SHI
Chinese Health Economics 2024;43(5):68-71,78
To reduce the subjectivity and uncertainty present in the current international methods of drug value pricing when converting value into monetary prices,based on the hedonic pricing theory,it considers the post-negotiation price between manufacturers and payers as a reasonable price reference in the value pricing of Chinese patent medicine.By constructing an indicator system for the characteristics of Chinese patent medicine,it selects and measures the value characteristic variables that affect the price of Chinese patent medicine.It serves as the theoretical foundation and research basis for establishing a Hedonic price model between characteristic price variables and negotiation prices,thereby promoting the enhancement of rationality and objectivity in value-guided pricing of Chinese patent medicine.
5.Evaluation of the Key Steps and Core Indicators of Priority Setting of Health Technology Assessment
Wenjie CAO ; Haili ZHANG ; Bin LIU ; Ning LIANG ; Yijiu YANG ; Weili WANG ; Ziteng HU ; Yanping WANG ; Nannan SHI
Chinese Hospital Management 2024;44(10):43-48
Objective The purpose is to sort out the key steps and core indicators of priority setting for health technology assessment,and provide references for the research of priority setting for health technology assessment in China.Methods To search information from the official website of the World Health Organization,the websites of international health technology assessment agencies/organizations,and CNKI,Wanfang,Pubmed,Embase and other databases related for the setting of health technology assessment priority topics,and the key steps and core indicators of the setting of priority topics were analyzed by descriptive statistical analysis.Results 21 priority setting schemes for health technology assessment were finally incorporated,and the key steps were extracted to set indicators for collecting evaluations.Ratings and rankings and review decisions.The core indicators are disease burden,economic impact and clinical/health impact.Conclusion The key steps and core indicators of international priority setting provide rich practical experience for China's health technology assessment priority setting,which should be actively used for reference to promote evidence-based and scientific decision-making of health technology assessment in China.
6.A pilot study on clinical application of three-dimensional morphological completion of lesioned mandibles assisted by generative adversarial networks
Ye LIANG ; Qian WANG ; Yiyi ZHANG ; Jingjing HUAN ; Jie CHEN ; Huixin WANG ; Zhuo QIU ; Peixuan LIU ; Wenjie REN ; Yujie MA ; Canhua JIANG ; Jiada LI
Chinese Journal of Stomatology 2024;59(12):1213-1220
Objective:To explore the clinical application pathway of the CT generative adversarial networks (CTGANs) algorithm in mandibular reconstruction surgery, aiming to provide a valuable reference for this procedure.Methods:A clinical exploratory study was conducted, 27 patients who visited the Department of Oral and Maxillofacial Surgery, Xiangya Hospital of Central South University between January 2022 and January 2024 and required mandibular reconstruction were selected. The cohort included 16 males and 11 females, with the age of (46.6±11.5) years; among them, 7 cases involved mandibular defects crossing the midline. The CTGANs generator produced 100 images, and the mean squared error (MSE) was calculated for differences between any two generated images. Preoperative cone-beam CT data from 5 patients were used to construct a labeled test database, divided into groups: normal maxilla, normal mandible, diseased mandible, and noise (each group containing 70 cross-sectional images). The CTGANs discriminator was used to evaluate the loss values for each group, and one-way ANOVA and intergroup comparisons were performed. Using the self-developed KuYe multioutcome-option-network generation system (KMG) software, the three-dimensional (3D) completion area of the mandible under cone-beam CT was defined for the 27 patients. The CTGANs algorithm was applied to obtain a reference model for the mandible. Virtual surgery was then performed, utilizing the fibular segment to reconstruct the mandible and design the surgical expectation model. The second-generation combined bone-cutting and prebent reconstruction plate positioning method was used to design and 3D print surgical guides, which were subsequently applied in mandibular reconstruction surgery for the 27 patients. Postoperative cone-beam CT was used to compare the morphology of the reconstructed mandible with the surgical expectation model and the mandibular reference model to assess the three-dimensional deviation.Results:The MSE for the CTGANs generator was 2 411.9±833.6 (95% CI: 2 388.7-2 435.1). No significant difference in loss values was found between the normal mandible and diseased mandible groups ( P>0.05), while both groups demonstrated significantly lower loss values than the maxilla and noise groups ( P<0.001). All 27 patients successfully obtained mandibular reference models and surgical expectation models. In total, 14 162 negative deviation points and 15 346 positive deviation points were observed when comparing the reconstructed mandible morphology with the surgical expectation model, with mean deviations of -1.32 mm (95% CI:-1.33- -1.31 mm) and 1.90 mm (95% CI: 1.04-1.06 mm), respectively. Conclusions:The CTGANs algorithm is capable of generating diverse mandibular reference models that reflect the natural anatomical characteristics of the mandible and closely match individual patient morphology, thereby facilitating the design of surgical expectation models. This method shows promise for application in patients with mandibular defects crossing the midline.
7.Decoding the Molecular Mechanisms of BRAFV600E-Induced Nevi Formation
Liang WEIZHENG ; Liu YUXUAN ; Xu DANDAN ; Jiang WENJIE ; Ran RENSEN
Biomedical and Environmental Sciences 2024;37(7):774-784
Melanocytes derived from neural crest cells harbor the BRAFV600E mutation,which is the predominant driver of nevus formation in humans.This mutation leads to malignant cell proliferation and subsequent cell cycle arrest,culminating in oncogene-induced senescence and nevus development.Nevertheless,emerging evidence has highlighted the heterogeneity of cellular senescence markers in BRAFV600E-induced senescent melanocytes.Moreover,the capacity of melanocytes within nevi to regain their proliferative ability raises questions about the molecular mechanisms by which BRAFV600E,via the mitogen-activated protein kinase signaling pathway,triggers nevus formation.This study provides an overview and discussion of the molecular mechanisms underpinning BRAFV600E-induced melanocyte nevus formation and the relevant animal models employed for their elucidation.It also highlights the significance of elucidating dynamic changes in cytoplasmic and nuclear substrates that interact with phosphorylated extracellular signal-regulated protein kinases 1 and 2 and underscores the value of using targeted BRAFV600E animal models created through gene editing technologies.
8.Methodology for Developing Rapid and Living Guidelines of Traditional Chinese Medicine (RALIG-TCM) (Part 1):Concept and Current Practice
Lijiao YAN ; Ning LIANG ; Ziteng HU ; Yujing ZHANG ; Yaxin CHEN ; Fuqiang ZHANG ; Xiaoling LI ; Wenjie CAO ; Chen ZHAO ; Cheng LYU ; Nannan SHI ; Yanping WANG
Journal of Traditional Chinese Medicine 2024;65(3):269-274
Rapid and living guidelines are those developed in response to public health emergencies in a short period of time using a scientific and standardized approach. Subsequently, they provide timely and credible recommendations for decision makers through regular and frequent updates of clinical evidence and recommendations. In this paper, we introduced the definition of rapid and living guideline as well as analyzed the basic characteristics of eight rapid and living guidelines in the field of traditional Chinese medicine (TCM) published till 2023 June, summarizing three core methodological issues in relation to how to rapidly develop guidelines, how to formulate recommendations when there is lack of evidence, and how to ensure the timeliness of guidelines. Based on the analysis of current rapid and living guidelines, it is implicated that there is necessity to carry out rapid and living guideline in the field of TCM, and the methodology of rapid integration of multivariate evidence in the field of TCM needs to be further explored; furthermore, it is necessary to further explore the obstacles of implementation of guidelines and promote timely updating, all of which provide certain theoretical references for relevant guideline developers and researchers.
9.Methodology for Developing Rapid and Living Guidelines of Traditional Chinese Medicine (RALIG-TCM) (Part 4): Evidence Monitoring and Dynamic Updates
Lijiao YAN ; Ning LIANG ; Yujing ZHANG ; Ziteng HU ; Yaxin CHEN ; Xiaoling LI ; Wenjie CAO ; Huizhen LI ; Xingyu ZONG ; Chen ZHAO ; Cheng LYU ; Nannan SHI ; Yanping WANG
Journal of Traditional Chinese Medicine 2024;65(3):287-291
In developing rapid and living guidelines of traditional Chinese medicine (TCM) in response to public health emergencies, it is important that evidence continue to be reviewed, and clinical questions and recommendations updated if necessary, due to the rapid changes in disease progression and the continuous generation of relevant research evidence. This paper proposed that the updating scope in dynamic mode should first be identified; then evidence monitoring should be carried out in four aspects, including clinical research, related guidelines or laws and regulations, disease progression, as well as clinical use of recommendations and clinical needs; finally, based on the results of the evidence monitoring, different options should be made, including revising the clinical questions, updating the evidence and recommendations, and withdrawing the guideline.
10.Mechanism of Yangxin Dingji Capsules in Preventing Ventricular Arrhythmia Based on TAK1/MKK3/p38 MAPK Pathway
Mian LI ; Zheng ZHANG ; Xinyue LI ; Xue TIAN ; Wenlu ZHENG ; Jinwei WU ; Gang LIU ; Wenjie LIANG
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(20):86-95
ObjectiveTo explore the protective effect and mechanism of Yangxin Dingji capsules on isoproterenol (ISO)-induced ventricular arrhythmia in SD rat cardiomyocytes based on the transforming growth factor-β activated kinase 1 (TAK1)-mitogen-activated protein kinase kinase 3 (MKK3)-p38 mitogen-activated protein kinase (p38 MAPK) signaling pathway. MethodFifty male SPF-grade SD rats were randomly divided into a normal group, a model group, a propranolol group, a low-dose Chinese medicine group, and a high-dose Chinese medicine group. The ventricular arrhythmia model was constructed using the ISO "6+1" method. The propranolol group received propranolol at 0.015 g·kg-1·d-1. The Chinese medicine groups received Yangxin Dingji capsules at doses of 0.5、 2 g·kg-1·d-1, respectively. The normal and model groups were given an equal volume of 0.9% NaCl solution. Electrocardiogram (ECG) changes in SD rats were recorded using the BL-420F biological function experimental system. Hematoxylin-eosin (HE) staining was used to observe the pathological changes in the heart. Serum levels of cardiac troponin I (cTnI), creatine kinase-MB (CK-MB), interleukin-1β (IL-1β), tumor necrosis factor-α (TNF-α), and transforming growth factor-β1 (TGF-β1) were measured using enzyme-linked immunosorbent assay (ELISA). The mRNA expression of IL-1β and TNF-α was assessed using real-time fluorescence quantitative polymerase chain reaction (Real-time PCR). Reactive oxygen species (ROS) expression was detected using immunofluorescence. Protein expression levels of TAK1, phosphorylated TAK1 (p-TAK1), MKK3, phosphorylated MKK3 (p-MKK3), p38 MAPK, phosphorylated p38 MAPK (p-p38 MAPK), nuclear factor-κB (NF-κB), phosphorylated NF-κB (p-NF-κB), IL-1β, and TNF-α were measured using Western blot or immunohistochemistry. ResultCompared with normal group, the model group showed significant ventricular arrhythmia in ECG, with an increased arrhythmia score (P<0.01). Pathological damage to myocardial tissue was evident, and serum levels of cTnI, CK-MB, IL-1β, TNF-α, and TGF-β1 were elevated (P<0.01). The mRNA and protein expression of IL-1β and TNF-α in myocardial tissue was also increased (P<0.01). ROS level and protein expression of p-TAK1, p-MKK3, p-p38 MAPK, and p-NF-κB were elevated in myocardial tissue (P<0.01). In the propranolol and Chinese medicine groups, the incidence of sustained ventricular tachycardia (SVT) and arrhythmia scores were significantly reduced compared to model group (P<0.05, P<0.01). Pathological damage to cardiomyocytes was alleviated, and levels of myocardial injury markers and inflammatory factors in serum and myocardial tissue were decreased. The ROS level in myocardial tissue was also reduced (P<0.01), with a noticeable reduction in related molecules in the p38 MAPK pathway (P<0.05, P<0.01). ConclusionThe expression of p38 MAPK pathway molecules was up-regulated in myocardial tissue of ISO-induced ventricular arrhythmia rats. Yangxin Dingji capsules may inhibit cardiac inflammation damage by regulating the expression of related molecules in the p38 MAPK pathway, thereby exerting a protective effect on myocardial cells, with TAK1 being a potential target.

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