1.Study on patients’medicine instruction regulatory system in the European Union and the enlightenment
Sihan YUAN ; Rong JIANG ; Yujie ZHENG ; Haiqi LI ; Yixuan CHEN ; Rong SHAO
China Pharmacy 2025;36(3):269-274
OBJECTIVE To provide reference for the establishment and improvement of the regulatory system of patients’ medicine instructions in China. METHODS Through searching the official website of the European Medicines Agency (EMA) and related literature, the definition, basic nature, and content of patients’ medicine instructions in the European Union were introduced, and the characteristics of the management system of patients’ medicine instructions in the European Union were analyzed in terms of the management department, approval and change procedures, readability requirements and information accessibility requirements. At the same time, the pilot situation of patients’ medicine instructions in China, as well as problems in the paths of classification and management, readability of content, and information timeliness were analyzed to put forward suggestions. RESULTS & CONCLUSIONS European Union had a dedicated department for the management of medicine instructions; the approval and change procedures for patients’ medicine instructions were clear, the readability requirements were detailed, the readability verification program with patient participation was established, and multi-channel and timely information disclosure was adopted. It is recommended that China establish a mechanism to categorize and manage professionals’ and patients’ medicine instructions, guide multiple parties to participate in the design of patients’ medicine instructions and refine the readability requirements, and improve the mechanism for disclosure of medicine instructions to enhance the timeliness of medication information.
2.Establishment and stress analysis of a finite element model for adolescent cervical disc herniation
Yuxin ZHAO ; Liang LIANG ; Feng JIN ; Yangyang XU ; Zhijie KANG ; Yuan FANG ; Yujie HE ; Xing WANG ; Haiyan WANG ; Xiaohe LI
Chinese Journal of Tissue Engineering Research 2025;29(3):448-454
BACKGROUND:Cervical disc herniation can cause pain in the neck and shoulder area,as well as radiating pain in the upper limbs.The incidence rate is increasing year by year and tends to affect younger individuals.Fully understanding the biomechanical characteristics of the cervical spine in adolescents is of great significance for preventing and delaying the onset of cervical disc herniation in this age group. OBJECTIVE:To reconstruct cervical spine models for both healthy adolescents and adolescent patients with cervical disc herniation utilizing finite element analysis techniques,to analyze the motion range of the C1-T1 cervical vertebrae as well as the biomechanical characteristics of the annulus fibrosus,nucleus pulposus,endplates,and the cartilage of the small joints. METHODS:A normal adolescent's cervical spine and an adolescent patient with cervical disc herniation were selected in this study.The continuous scan cervical spine CT raw image data were imported into Mimics 21.0 in DICOM format.The C1-T1 vertebrae were reconstructed separately.Subsequently,the established models were imported into the 3-Matic software for disc reconstruction.The perfected models were then imported into Hypermesh software for meshing of the vertebrae,nucleus pulposus,annulus fibrosus,and ligaments,creating valid geometric models.After assigning material properties,the final models were imported into ABAQUS software to observe the joint motion range of the C1-C7 cervical vertebrae segments under different conditions,and to analyze the biomechanical characteristics of the annulus fibrosus,nucleus pulposus,endplates,and small joint cartilage of each cervical spine segment. RESULTS AND CONCLUSION:(1)In six different conditions,the joint motion range of the C1 vertebra in the cervical spine models of both normal adolescent and adolescent patient with cervical disc herniation was higher than that of the other vertebrae.Additionally,the joint motion range of each cervical spine segment in normal adolescent was greater than that in adolescent patient with cervical disc herniation.(2)In the cervical spine model of normal adolescent,the maximum stress values in the annulus fibrosus and nucleus pulposus were found on the left side during C2-3 flexion conditions(0.43 MPa and 0.17 MPa,respectively).In the cervical spine model of adolescent patient with cervical disc herniation,the maximum stress values were found on the left side during C7-T1 flexion conditions(0.54 MPa and 0.18 MPa,respectively).(3)In the cervical spine model of normal adolescent,the maximum stress value on the endplate was found on the left side of the upper endplate of C3 during flexion conditions(1.46 MPa).In the model of adolescent patient with cervical disc herniation,the maximum stress value on the endplate was found on the left side of the lower endplate of C7 during flexion conditions(1.32 MPa).(4)In the cervical spine model of normal adolescent,the maximum stress value in the small joint cartilage was found in the C2-3 left rotation conditions(0.98 MPa).In adolescent patient with cervical disc herniation,the stress in the small joint cartilage significantly increased under different conditions,especially in C1-2,with the maximum stress found during left flexion(3.50 MPa).(5)It is concluded that compared to normal adolescent,adolescent patient with cervical disc herniation exhibits altered cervical curvature and a decrease in overall joint motion range in the cervical spine.In adolescent with cervical disc herniation,there is a significant increase in stress on the annulus fibrosus,nucleus pulposus,and endplates in the C7-T1 segment.The stress on the left articular cartilage of the C1-2 is notable.Abnormal cervical curvature may be the primary factor causing these stress changes.
3.Stage-Based Intervention in Atherosclerosis Using the "Attacking,Supplementing,Dispersing,Dissipating" Method Based on the Accumulation Syndrome Theory
Yujie LUAN ; Chenlu YUAN ; Zizhen CHEN ; Yijun LIU ; Yi WEI ; Yuanhui HU
Journal of Traditional Chinese Medicine 2025;66(7):685-689
Atherosclerosis is a complex pathological condition resulting from lipid deposition, chronic inflammatory responses, and fibrosis, with a prolonged disease course and multifactorial etiology. Based on the traditional Chinese medicine (TCM) theory of accumulation syndrome, atherosclerosis can be classified under this category, with its pathogenesis involving phlegm, blood stasis, deficiency, and accumulation. This paper proposed a stage-based intervention strategy using the four therapeutic principles of "attacking, supplementing, dispersing, dissipating", and divided into six stages based on the pathological progression, including the stage of accumulation before formation, the stage of accumulation already formed, the stage of nucleus accumulation, the stage of nucleus accumulation decay, the stage of nucleus accumulation consolidation, and the stage of severe stenosis of nucleus. At different stages, the intervention focuses on reinforcing healthy qi and consolidating the root, tonifying the kidneys and spleen, dispersing and removing turbidity, removing phlegm stagnation, promoting qi circulation, dispersing accumulations and removing stasis, attacking accumulation and expelling stasis, directing the turbid downward and dispersing accumulation, and treatment would be adjusted based on specific symptoms, which provides a theoretical framework for the prevention and treatment of atherosclerosis with TCM.
4.Therapeutic effect and mechanism of the topical preparation of baicalein on atopic dermatitis
Deng WANG ; Zhongying FAN ; Qinglong GUO ; Xi LI ; Yujie BAI ; Libin WEI ; Yuan HE
Journal of China Pharmaceutical University 2025;56(1):99-109
To evaluate the therapeutic effect of baicalein topical preparation on atopic dermatitis, we first constructed two atopic dermatitis-like mouse models induced by calcipotriol and 1-fluoro-2,4-dinitrobenzene to assess their therapeutic effect with skin tissue staining and other experiments. It was found that topical preparation of baicalein could alleviate epidermal thickening of diseased skin tissues, repair damaged skin barrier proteins, and inhibit T helper 2 cells (Th2) infiltration and mast cell infiltration and activation in lesional sites. Cyberpharmacology was utilized to analyze whether baicalein could treat atopic dermatitis by interfering with multiple pathogenesis-associated pathways. Results indicated that baicalein reduced the mRNA levels of inflammatory factors and inhibited the phosphorylation of NF-κB p65 and STAT1 proteins in keratinocyte cells. Together, the topical preparation of baicalein may be effective in alleviating atopic dermatitis-like symptoms in mice by down-regulating the phosphorylation level of NF-κB in keratinocytes, thereby decreasing the expression of inflammatory factors in keratinocytes, which provides an idea and a theoretical basis for the topical preparation of baicalein for the treatment of inflammatory skin diseases such as atopic dermatitis.
5.Evaluation of the effect of campus tray design on salt intake control among boarding students in Guizhou Province
QIU Yujie, DU Zhixin, YUAN Fan, ZHAO Hang, LIU Ailing
Chinese Journal of School Health 2025;46(7):956-960
Objective:
To explore the effect of replacing rice bowls with trays on controlling the salt intake among school aged children, providing new evidence and insights for salt reduction intervention.
Methods:
From April to May 2024, 373 students from grades 4-9 at a boarding school in Guizhou Province were enrolled through stratified random cluster sampling, with one intervention class and one control class per grade. During the intervention period for one month, and the types of meals provided, pricing standards, and dining procedures shall remain consistent with daily operations, the intervention group ( n =181) compartmentalized trays for lunch and dinner, while the control group ( n =192) still used a rice bowl. Pre and post intervention assessments included 24 hour urine collection, questionnaire surveys, and physical measurements. The difference in differences analysis combined with multiple linear regression was used to analyze the changes in sodium intake and to evaluate the net effect of the intervention.
Results:
The post intervention 24 hour sodium intake in the intervention group was ( 2 222.6 ±1 013.6) mg, an increase of 94.6 mg from baseline, with no statistically significant difference ( t=1.10, P >0.05). In contrast, the post intervention 24 hour sodium intake in the control group was (2 080.5±895.7) mg, a decrease of 190.8 mg from baseline, showing a statistically significant difference ( t=-2.39, P <0.05). The difference in differences results indicated that after adjusting the model for factors such as gender, grade and dietary behaviors affecting sodium intake, the intervention group showed a net increase of 232.5 mg [ β(95%CI )=232.5(-40.3-505.2)] in 24 hour sodium intake compared to the control group, with no statistically significant net effect ( P >0.05).
Conclusions
Merely changing tableware is insufficient to control children s salt intake effectively. Based on continuous practical explorations and evidence based research grounded in the nudge theory, multi dimensional measures such as salt reduction education and the construction of a supportive environment should be integrated to form an intervention system that achieves synergistic and enhanced effects.
6.International practice and experience insights of electronic drug instructions
Yujie ZHENG ; Rong JIANG ; Yixuan CHEN ; Haiqi LI ; Sihan YUAN ; Rong SHAO
China Pharmacy 2024;35(17):2061-2067
OBJECTIVE To analyze the practices of electronic drug instructions in the European Union (EU), the United States (US) and Japan, so as to provide references for promoting electronic drug instructions under Chinese existing regulatory systems. METHODS By searching the official websites of FDA, European Medicines Agency (EMA) and Pharmaceuticals and Medical Devices Agency (PMDA), as well as relevant literature, the practice and system of electronic drug instructions in different countries/regions were compared and analyzed. The problems of regulatory system, accessibility form and management system of electronic drug instructions in China were analyzed to put forward the suggestions. RESULT && CONCLUSIONS The EU, the US and Japan had established relevant laws for the implementation of electronic drug instructions, issued guidance to specify management requirements and work processes, and set up information platforms to standardize data requirements and enrich search channels. In contrast, the practice of electronic drug instructions in China is still in its infancy, the implementation of electronic drug instructions in China still lacks legislative support, and its accessibility form and future regulatory system need to be further explored. It is suggested to take the opportunity to carry out the pilot reforms of the age-friendly and barrier-free environment for drug instructions in China, improve the regulatory system of electronic drug instructions, promote the readability of drug instructions by exploring the accessibility form of electronic drug instructions in stages, establish and improve the regulatory system of electronic drug instructions, actively build an electronic information platform for it, and promote the development and implementation of electronic drug instructions.
7.Mechanism of action of Polygonum multiflorum in inducing liver injury: A study based on signaling pathways
Zihan LIANG ; Jiahui LI ; Shuang CHENG ; Zhuoya YUAN ; Wenya RONG ; Yajie LIU ; Yujie HAO ; Ruilin WANG
Journal of Clinical Hepatology 2024;40(3):626-632
Polygonum multiflorum (PM), a commonly used Chinese herbal medicine in clinical practice, has been associated with frequent reports of liver injury in recent years, and the medication safety of PM has attracted more and more attention in China and globally. This article reviews the recent research advances in the signaling pathways and mechanisms of PM in causing drug-induced liver injury (DILI) and aims to provide new ideas for the proper and rational use of PM in clinical practice. The results show that PM is involved in the regulation of various signaling pathways, and it leads to the death of hepatocytes by destroying mitochondrial function, exacerbating bile acid accumulation, and inducing immune response, oxidative stress, and endoplasmic reticulum stress, thereby inducing the development and progression of DILI through multiple targets, pathways, and levels.
8.Research on the Improvement of Peripheral Neuropathy in Diabetic Mice by Vincamine Derivative Vin24 via Bcl-2/Bax/Caspase3 Pathway
Yujie HUANG ; Yuan RUAN ; Jiaying WANG
Journal of Nanjing University of Traditional Chinese Medicine 2024;40(11):1189-1199
OBJECTIVE To investigate the protective effect and mechanism of vincamine derivative Vin24 on the pathological symptoms of diabetic peripheral neuropathy(DPN)in mice.METHODS Forty 8-week-old male C57BL/6N mice were randomly di-vided into control group(Control),model group(STZ),vincamine group(STZ+Vin)and Vin24 group(STZ+Vin24).Except the con-trol group,the rest three groups of mice were intraperitoneally injected with streptozocin(STZ,150 mg·kg-1)to induce type 1 diabe-tes and administration was started six weeks later.Thirty 18-week-old male db/db mice were randomly divided into model group(db/db),vincamine group(db/db+Vin)and Vin24 group(db/db+Vin24).Ten age-matched wild-type mice were used as a control group(db/m).The vincamine group were gavaged 30 mg·kg-1 of vincamine daily.The Vin24 group was gavaged 46.8 mg·kg-1 of Vin24,while the control and model group were given the same amount of saline daily,for four weeks.Sensory functions of the mice were as-sessed by assays against tactile and thermal allodynia threshold.A Laser Speckle Imaging System was used to detect the peripheral blood flow.The epidermal tissues of foot pads were collected for PGP9.5 immunofluorescence to measure the intraepidermal nerve fiber(IENF)density.Primary dorsal root ganglia(DRG)neurons were isolated for β-tubulin Ⅲ immunofluorescence to evaluate neurite outgrowth.Additionally,DRG tissues were extracted for ATF3 immunofluorescence for the evaluation of DRG neuronal apoptosis,and Western blot analysis was used to measure the protein levels of Bcl-2,Bax,Cleaved-Caspase3 and Caspase3.RESULTS The tact-ile and thermal allodynia thresholds were decreased(P<0.01,P<0.001),and peripheral blood flow was increased(P<0.001)in Vin24-treated DPN mice.The IENF density was increased(P<0.05,P<0.01)and DRG neurite outgrowth was improved(P<0.001)in Vin24 group compared with that in the model group.Immunofluorescence assay results indicated that the number of ATF3(a marker of neuronal apoptosis)-positive neurons was obviously decreased(P<0.01,P<0.001)in DRG tissues of Vin24-treated DPN mice.Western blot results demonstrated that the protein level of anti-apoptotic protein Bcl-2 was significantly increased(P<0.05),and the protein levels of pro-apoptotic proteins Bax and Cleaved-Caspase3 were significantly decreased(P<0.05)in DRG tissues of Vin24-treated DPN mice.CONCLUSION Vincamine derivative Vin24 inhibits the activation of Cleaved-Caspase3 and reduces the neuronal apoptosis levels by regulating Bcl-2/Bax/Caspase3 pathway,and eventually alleviates DRG neuronal damage and improves peripheral neuropathy in diabetic mice.
9.Mechanism of Ginkgo flavone aglycone in alleviating doxorubicin-induced cardiotoxicity based on transcriptomics and proteomics
Yujie TU ; Ying CAI ; Xueyi CHENG ; Jia SUN ; Jie PAN ; Chunhua LIU ; Yongjun LI ; Yong HUANG ; Lin ZHENG ; Yuan LU
China Pharmacy 2024;35(21):2596-2602
OBJECTIVE To investigate the mechanism by which Ginkgo flavone aglycone (GA) reduces the cardiotoxicity of doxorubicin (DOX) based on transcriptomics and proteomics. METHODS Thirty-six mice were randomly assigned to control group (CON group, tail vein injection of equal volume of physiological saline every other day+daily intragastric administration of an equal volume of physiological saline), DOX group (tail vein injection of 3 mg/kg DOX every other day), and GDOX group (daily intragastric administration of 100 mg/kg GA+tail vein injection of 3 mg/kg DOX every other day), with 12 mice in each group. The administration of drugs/physiological saline was continued for 15 days. Mouse heart tissues were collected for RNA-Seq transcriptomic sequencing and 4D-Label-free quantitative proteomic analysis to screen differentially expressed genes and proteins, which were then subjected to Kyoto encyclopedia of genes and genomes (KEGG) enrichment analysis. The expression levels of Apelin peptide (Apelin), phosphatidylinositol 3-kinase (PI3K), and protein kinase B (Akt) mRNA and protein in mouse heart tissues, as well as the phosphorylation levels of PI3K and Akt proteins, were verified. H9c2 cardiomyocytes were divided into control group (CON group), DOX group (2 μmol/L), and GDOX group (2 μg/mL GA+2 μmol/L DOX) to determine cell viability and the levels of key glycolytic substances in the cells. RESULTS Six common pathways were identified from transcriptomics and proteomics, including the Apelin signaling pathway, the PI3K-Akt signaling pathway, and insulin resistance. Among them, the Apelin and PI3K-Akt signaling pathways were the most enriched in terms of gene numbers. Target validation experiments showed that compared to the CON group, the relative expression of Apelin, PI3K and Akt mRNA and protein levels, as well as the phosphorylation levels of PI3K and Akt proteins, were significantly decreased in the DOX group (P<0.05 or P<0.01). The relative expression of Apelin, PI3K and Akt mRNA and the phosphorylation levels of PI3K and Akt proteins were significantly increased in the GDOX group as compared with the DOX group (P<0.05 or P<0.01). Cellular experiments indicated that compared to the CON group, cell viability in the DOX group was significantly decreased (P<0.05), the relative uptake of glucose and the relative production of pyruvate and lactate were significantly increased (P<0.05), and the relative production of ATP was significantly reduced (P<0.05). Compared to the DOX group, cell viability in the GDOX group was significantly increased (P< 0.05), and the relative production of pyruvate and lactate was significantly reduced (P<0.05). CONCLUSIONS GA may alleviate DOX-induced cardiotoxicity by upregulating the mRNA and protein expression of Apelin, PI3K, and Akt in heart tissues, and regulating glycolytic processes.
10.Mechanism of immune regulation disorder in the development of atherosclerosis induced by occupational stress
CHEN Jing ; HUANG Yujie ; YAN Yuan ; YIN Yangguang
Journal of Preventive Medicine 2024;36(12):1049-1051
Abstract
Research has shown that occupational stress is closely related to the occurrence and progression of atherosclerosis, with immune dysregulation serving as a mediating factor. Occupational stress triggers immune dysregulation in the body, ultimately leading to atherosclerosis through mechanisms such as the activation of immune cells and inflammatory mediators, endothelial dysfunction, and lipid metabolism disorders. This article reviews the primary mechanisms by which immune dysregulation plays a role in atherosclerosis caused by occupational stress, providing the reference for the prevention and intervention of atherosclerosis.


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