1.Network pharmacology analysis on Panacis Quinquefolii Radix- Acori Tatarinowii Rhizoma for diabetes encephalopathy and experimental verification of its anti-inflammatory mechanism
Lin LIU ; Jiaojiao ZHANG ; Dongxue WANG ; Jingfei KANG ; Kai WANG ; Yang YANG
International Journal of Traditional Chinese Medicine 2024;46(1):56-62
Objective:To predict the mechanism of Panacis Quinquefolii Radix- Acori Tatarinowii Rhizoma (PQ-AT) in the treatment of diabetes encephalopathy (DE) using network pharmacology combined with molecular docking; To conduct experimental verification.Methods:The active components and targets of PQ and AT were screened by TCMSP database. The GeneCards and Disgenet were used to collect DE related target genes. String database and Cytoscape software were used to structure PPI network and perform visualization analysis. The common targets were imported into Metascape platform for GO annotation and KEGG enrichment analysis. Molecular docking was used to verify the binding ability of active components to core targets. Rats were randomly divided into a blank group, a model group, and a low-dose group of PQ-AT (1.08 g/kg), a high-dose group of PQ-AT (2.16 g/kg), and a metformin group (0.18 g/kg) using a random number table. To establish the rat model of diabetes encephalopathy, intraperitoneal injection of streptozotocin was used in addition to the blank group. After a 12-week drug intervention, TNF-α and Cyclooxygenase-2 (PTGS2) protein expression in the cerebral cortex of rats was detected using Western blot.Results:A total of 26 active components in PQ-AT and 107 related targets of DE were obtained, mainly including TNF, JUN, and PTSG2, which were mainly concentrated in TNF signaling pathway, cancer and other signal pathways. Molecular docking showed that the main active components of PQ-AT had relatively stable binding activity with TNF-α and PTGS2. Western blot results shows that compared with the model group, the expressions of PTGS2 and TNF-α significantly decreased in each administration group ( P<0.05 or P<0.01). Conclusion:PQ-AT can act on TNF, CASP3, JUN, STAT3, PTGS2 and other core targets to regulate signal pathways such as TNF, and inhibit inflammatory reaction to achieve the effect of treating DE.
2.The expression and clinical significance of hsa_circ_0003922 in endometrioid carcinoma
Jie YANG ; Chunhong LI ; Jingfei HUANG ; Zhiwei CHEN ; Lin LIU
The Journal of Practical Medicine 2024;40(14):1975-1980
Objective Investigation of the expression and clinical significance of circular RNA hsa_circ_0003922 in endometrioid carcinoma(EEC).Methods Three EEC tissues and three normal endometrial tissues were selected for high-throughput molecular sequencing to identify specific circRNAs and related functional molecules.Additionally,36 EEC patients were selected as the experimental group,while 36 patients with benign uterine lesions served as the control group.The differentially expressed hsa_circ_0003922 was chosen as the research target,and its expression in EEC tissues and the control group was detected using real-time fluorescence quantitative PCR(RT-qPCR).The relationship between its expression level and clinical pathological features of EEC was analyzed.Furthermore,the miRNAs associated with hsa_circ_0003922 were predicted.The receiver operating characteristic(ROC)curve analysis was employed to evaluate the diagnostic value of hsa_circ_0003922 for EEC.Results The results of high-throughput molecular sequencing showed that there were 293 differentially expressed circRNAs in EEC tissues compared to the control group,including 115 upregulated and 178 downregulated circRNAs.RT-qPCR further revealed that the expression of hsa_circ_0003922 was significantly decreased in EEC tissues compared to the control group(P<0.05).The expression level of hsa_circ_0003922 was significantly negatively correlated with FIGO staging and histological grading of EEC(P<0.05).The area under the ROC curve(AUC)for hsa_circ_0003922 in distinguishing EEC patients from the control group was 0.7724(P<0.05).Conclusion The expres-sion of hsa_circ_0003922 is associated with FIGO staging and histological grading of EEC,indicating its potential as a reference index for auxiliary diagnosis,prognosis evaluation,and as a potential molecular target for adjuvant therapy in EEC.
3.Research progress of biological action of SMPD3 in tumor diseases
Jingfei ZHAO ; Luyong YANG ; Bai RUAN ; Jianyong ZHENG
International Journal of Biomedical Engineering 2024;47(3):281-287
Sphingomyelin phosphodiesterase 3 (SMPD3) encodes neutral sphingomyelinase 2 (nSMase2), which plays an important role in tumor development as a key enzyme regulating cell growth variation and inducing apoptosis with the important messenger molecule ceramide. On one hand, the common epigenetic alteration of SMPD3 methylation mediates carcinogenesis through the disruption of gene expression by regulating cell proliferation, differentiation, and apoptosis. Meanwhile, SMPD3 also induces apoptosis and cell cycle arrest in tumor cells through its hydrolysis products. On the other hand, SMPD3 is also closely related to pro-cancer processes such as exosome secretion, inflammatory response, and tumor cell proliferation. In this paper, the biological action of SMPD3 in tumor diseases was reviewed to enhance the understanding of the role of SMPD3 in the development of different tumors and provide broader ideas for basic research and clinical diagnosis and treatment of tumor diseases.
4.Insulin resistance caused by iatrogenic hyperinsulinemia in type 1 diabetes
Shuang LI ; Jingfei LIU ; Yang CHEN ; Yong GU ; Tao YANG
Chinese Journal of Endocrinology and Metabolism 2024;40(9):811-816
Type 1 diabetes is characterized by an absolute deficiency of insulin. Exogenous insulin replacement therapy is a crucial treatment approach for type 1 diabetes. However, the non-physiological insulin administration can lead to iatrogenic hyperinsulinemia, exacerbate peripheral insulin resistance, and subsequently increase the risk of various complications. Emerging insulin infusion technologies, lifestyle interventions, and medications such as metformin are increasingly being utilized in type 1 diabetes management to lower plasma insulin levels and improve patient outcomes.
5.Enzyme-instructed and mitochondria-targeting peptide self-assembly to efficiently induce immunogenic cell death.
Debin ZHENG ; Jingfei LIU ; Limin XIE ; Yuhan WANG ; Yinghao DING ; Rong PENG ; Min CUI ; Ling WANG ; Yongjie ZHANG ; Chunqiu ZHANG ; Zhimou YANG
Acta Pharmaceutica Sinica B 2022;12(6):2740-2750
Immunogenic cell death (ICD) plays a major role in cancer immunotherapy by stimulating specific T cell responses and restoring the antitumor immune system. However, effective type II ICD inducers without biotoxicity are still very limited. Herein, a tentative drug- or photosensitizer-free strategy was developed by employing enzymatic self-assembly of the peptide F-pY-T to induce mitochondrial oxidative stress in cancer cells. Upon dephosphorylation catalyzed by alkaline phosphatase overexpressed on cancer cells, the peptide F-pY-T self-assembled to form nanoparticles, which were subsequently internalized. These affected the morphology of mitochondria and induced serious reactive oxygen species production, causing the ICD characterized by the release of danger-associated molecular patterns (DAMPs). DAMPs enhanced specific immune responses by promoting the maturation of DCs and the intratumoral infiltration of tumor-specific T cells to eradicate tumor cells. The dramatic immunotherapeutic capacity could be enhanced further by combination therapy of F-pY-T and anti-PD-L1 agents without visible biotoxicity in the main organs. Thus, our results revealed an alternative strategy to induce efficient ICD by physically promoting mitochondrial oxidative stress.
6.Framework and path of inclusive physical activity into health-promoting schools with the perspective of World Health Organization health services
Shengting DAI ; Jingfei YAN ; Jian YANG
Chinese Journal of Rehabilitation Theory and Practice 2022;28(10):1135-1142
ObjectiveTo systematically study the global standards and implementation guidelines for health-promoting schools issued by the World Health Organization (WHO) and the United Nations Educational, Scientific and Cultural Organization (UNESCO) in 2021, explore the theories applying the components of WHO health services and construct the policy framework, content standards, and implementation path for integrating physical activity into the construction of health-promoting schools in primary and secondary schools. MethodsBased on the WHO health service system theory, a content analysis of WHO and UNESCO core policy documents in the fields of physical activity and health promotion in schools was conducted, including Making Every School a Health-Promoting School: Global Standards and Indicators; Making Every School a Health-Promoting School: Implementation Guidelines; and WHO Guidelines on School Health Services, to construct the policy framework, standard and implementation guideline framework, core content and implementation path for integrating physical activity into the construction of health-promoting schools in primary and secondary schools. ResultsThe content of the integration of health-promoting schools into the health service system could be constructed in six domains including leadership and governance, financing, service delivery, human resources, health technology and facilities, and health information systems. Implementing health services in the school environment to build health-promoting schools, the main tasks in six areas were refined into eight standards and 13 implementation areas. Integrating physical activity into health-promoting schools could be constructed from the six blocks of the health service system, including leadership and governance, financing for health-promoting schools, human resources for health-promoting schools, provision of school health services, technology and equipment, and health information. There are six implementation approaches in six blocks of health system: to strengthen the policy and governance capacity of integrating physical activity into health-promoting schools; to raise sufficient funds for the construction of physical activity integrated health-promoting schools; to integrate physical activity into the construction of health-promoting schools and provide comprehensive health care for teachers and students; to train human resources related to physical activity and health; to provide support for health technology and equipment and facilities for the construction of physical activity integration into health-promoting schools; and to establish a health-promoting school information system integrating physical activity and conduct related research. ConclusionPhysical activity is an important part of health services. Starting from the six components of health service, with the policy support of concept of health-promoting schools, this paper discussed the framework and content of integrating physical activity into health-promoting schools standards and implementation guidelines from the perspective of health services, and specific approaches to integrate physical activity into health-promoting school.
7.Construction of school physical activity and health-related curriculum in perspective of health-promoting school
Jian YANG ; Shengting DAI ; Jingfei YAN
Chinese Journal of Rehabilitation Theory and Practice 2022;28(12):1408-1415
ObjectiveTo explore the policy framework, core content, and curriculum implementation of physical activity and health-related curriculum in perspective of health-promoting school. MethodsBased on the policies related to health-promoting school and the World Health Organization (WHO) theory of health service system, content analysis was conducted on the core policy documents of WHO and UNESCO, and to construct the policy framework, core contents, and implementation pathways of physical activity and health-related curriculum in schools from the perspective of health-promoting school. The core policy documents included Making Every School a Health-Promoting School: Global Standards and Indicators; Making Every School a Health-Promoting School: Implementation Guidelines; and WHO Guidelines on School Health Services. ResultsPolicy framework, theoretical basis, core content, and implementation pathways of physical activity and health-related curriculum were established in perspectives of WHO policies of health-promoting school. The core content of physical activity and health-related curriculum in health-promoting school context were systematically analyzed in terms of school physical activity and health-related curriculum. The specific implementation path of physical activity and health-related curriculum in health-promoting school involved six aspects: curriculum objectives, curriculum content, curriculum approaches, curriculum evaluation, learning materials, and teacher training. ConclusionHealth promotion is an important part of health service system. Health-related curriculum in schools is the use of educational and health-related tools to provide health services to students in a school context. Physical activity and health-related curriculum is a comprehensive health service for students' physical and mental health development in a health-promoting school setting. The pathways and methods for constructing a physical activity and health-related curriculum in a health-promoting school perspective involve six main areas: curriculum objectives, curriculum content, curriculum approaches, curriculum evaluation, learning materials, and teacher training.
8.The establishment of high-throughput neutralization titer evaluation model for hepatitis E virus (HEV).
Fan YANG ; Zimin TANG ; Siling WANG ; Wei CAI ; Guiping WEN ; Wenfang JI ; Jingfei YU ; Ke ZHANG ; Ningshao XIA ; Zizheng ZHENG
Chinese Journal of Virology 2015;31(1):1-6
The lack of effective in vitro infection model for hepatitis E virus (HEV) has greatly hindered the quantitative analysis of neutralizing titers of anti-HEV antibodies and human sera, thus impeding further studies of HEV-stimulated antibody responses and the immunological mechanisms. In order to improve this situation, the infection of HepG2 cells that are inefficient for HEV replication was continuously monitored until the viral load reached the limit of detection on day 13, the results of which confirmed the feasibility of using this cell line to establish the infection model. Then, neutralization assays of five anti-HEV murine monoclonal antibodies and serum samples collected from four HEV vaccine recipients (collected before and after vaccination) were performed by 96 multi-channel parallel infections, nucleic acid extraction, and qPCR. The results showed that the cell model can be applied for quantitative evaluation of the neutralizing capacity of different antibodies and antiserum samples from HEV vaccine recipients. In this study, we have successfully established a high-throughput in vitro HEV replication model, which will prove to be useful for the evaluation of HEV vaccines and studies of HEV epitopes.
Animals
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Antibodies, Viral
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analysis
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immunology
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Hepatitis Antibodies
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analysis
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immunology
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Hepatitis E
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immunology
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virology
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Hepatitis E virus
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chemistry
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immunology
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physiology
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High-Throughput Screening Assays
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methods
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Humans
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Mice
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Mice, Inbred BALB C
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Neutralization Tests
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methods
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Virus Replication
9.Treatment of primary rhegmatogenous retinaldetachment with cryopexy in combination with intravitravitreal injection of expending gas
Liping XUE ; Min WU ; Min HU ; Xiaomei SUN ; Yali PENG ; Wenrong XU ; Jingfei YANG
The Journal of Practical Medicine 2015;(18):3042-3045
Objective To demonstrate the visual results and complications of an cryopexy in combination with intravitreal injection of expending gas in the therapy of primary rhegmatogenous retinaldetachment (RRD). Methods Thirty-two cases (32 eyes) were retrospectively reviewed in this study. The RRD diagnosis was confirmed by best corrected visual acuity,slit-lamp microscope,indirected ophthalmoscope and Goldman three-mirror contact lens. All patients had undergone cryopexy with intravitreal gas injection and assisted by correct body position. Patients were followed for 6 to 24 months. Post-operative BCVA,final anatomical outcome, complications and failed cases were analyzed. Results The reattachment rate of cryopexy with intravitreal gas injection was 81%(26/32 eyes). Four eyes required additional scleral buckling. Two eyes needed additional vitrectomy with intravitreal injection of expending gas (SF6).Final retinal reattachment was achieved in all 32 subjects (100%). Postoperative BCVA was significantly improved (P < 0.01). Conclusion Cryopexy with intravitreal gas injection is a simple,less trauma, lower cost and effective surgery for primary rhegmatogenous retinaldetachment.
10.VocaI PoIyps and Precancerous Lesions Treated with CO2 Laser and ConventionaI LaryngeaI Microsurgery
Xiaoyan ZHAO ; Na SUN ; Guangbin SUN ; Weihua XU ; Qin FANG ; Jingfei ZHANG ; Xingrui DONG ; Yang MENG ; Liniin GUAN
Journal of Audiology and Speech Pathology 2015;(1):40-44
Objective To compare the efficacy of CO2 laser and conventional laryngeal microsurgery in the treatment of benign lesions of vocal cord (polyp of vocal cord) and precancerous lesions (leukoplakia of vocal cord) of patients. Methods A total of 60 patients with vocal cord polyps were selected, and randomly divided into two groups, each with 30 patients. Thirty patients with vocal cord leukoplakia were selected and randomly divided into two groups, each with 15 patients. One group was performed by cold instruments for lesion resection (conventional group), the other by CO2 laser for removal of diseased tissue or mucosal ablative surgery (laser group). Two groups of patients were examined by laryngostroboscope, electronic laryngoscopy, GRABS, VHI subjective ratings and objective voice analysis before operation and one week, one month and three months after operation. ResuIts The outcomes of those with vocal cord polyps in early recovery (1 week) laser group were slightly worse than the conventional group. In later recovery (1~3 months), with electronic laryngoscopy inspection, laryngostroboscope mucosal wave observation, the analysis of subjective and objective data from the two groups showed no significantly differences. For patients with vocal cord leukoplakia in early recovery (1 week), laser group slightly worse than the conventional group, in later recovery (1~3 months), there were no obvious difference between the two groups in electronic laryngoscopy inspection, laryngostroboscope mucosal wave observation, the analysis of subjective and ob_jective data. Follow -up operations, the recurrence rates in laser group was significantly lower than conventional group. ConcIusion The treatment by CO2 laser can significantly improve their pronunciation quality for vocal cord polyps and vocal cord leukoplakia patients, it has a good therapeutic effect, especially the long-term effective of vo_cal cord leukoplakia is better than conventional operation.

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