1.Effect of Ephedrine on OGD/R induced neuronal injury by regulating RIP1/RIP3/MLKL signaling pathway
Peng LI ; Aixin LI ; Sijia GUO
Chinese Journal of Immunology 2025;41(9):2161-2165,2171
Objective:To explore the effect of Ephedrine on oxygen glucose deprivation/reoxygenation(OGD/R)induced neu-ronal injury by regulating receptor interacting protein-1/receptor interacting protein-3/mixed lineage kinase domain-like protein(RIP1/RIP3/MLKL)signaling pathway.Methods:OGD/R model was constructed by hypoxia/reoxygenation;human cortical neuron HCN cells were separated into control group,model group(OGD/R group),Ephedrine group(800 μg/ml),Compound 6i group(RIP1 acti-vator Compound 6i,0.94 μmol/L),Ephedrine+Compound 6i group(800 μg/ml Ephedrine+0.94 μmol/L Compound 6i),Nec-1 group(RIP1 specific inhibitor Nec-1,5 μmol/L)and Ephedrine+Nec-1 group(800 μg/ml Ephedrine+5 μmol/L Nec-1);CCK-8 method was applied to detect HCN cell proliferation;DCFH-DA method was applied to detect ROS level in HCN cells;flow cytometry was ap-plied to detect HCN cell apoptosis;ELISA was applied to detect levels of TNF-α and IL-6;Western blot was applied to detect RIP1/RIP3/MLKL signaling pathway and apoptotic proteins expressions in HCN cells.Results:Compared with control group,ROS level,apop-tosis rate,p-MLKL,RIP3,Bax,IL-6,TNF-α and RIP1 expressions of HCN cells in OGD/R group were significantly increased,A450 value and Bcl-2 protein were significantly decreased(P<0.05);compared with OGD/R group,ROS level,apoptosis rate,p-MLKL,RIP3,Bax,IL-6,TNF-α and RIP1 expressions of HCN cells in Ephedrine group and Nec-1 group were significantly reduced,A450 val-ue and Bcl-2 protein were significantly increased,the trend of Compound 6i group was opposite(P<0.05);Compound 6i was able to weaken the effect of Ephedrine in improving OGD/R induced neuronal injury,Nec-1 was able to enhance the effect of Ephedrine in im-proving OGD/R induced neuronal injury.Conclusion:Ephedrine attenuates OGD/R induced neuronal injury by inhibiting RIP1/RIP3/MLKL signaling pathway.
2.Innovative design and statistical considerations in vaccine clinical trials
Fengyu SUN ; Wen LIU ; Sijia DING ; Fangrong YAN ; Jun WANG ; Zhihang PENG
Chinese Journal of Preventive Medicine 2025;59(2):254-259
In recent decades, the global community has encountered several significant viral outbreaks, including the Ebola epidemic in West Africa, the Zika virus epidemic in South America, and the recent worldwide COVID-19 pandemic. In these instances, the deployment of effective vaccines has been instrumental in protecting public health. Nevertheless, as new challenges emerge in the prevention and management of infectious diseases, the traditional model of global vaccine development confronts both unprecedented opportunities and challenges. These circumstances underscore the limitations inherent in conventional vaccine development, particularly the protracted timelines and substantial costs involved. This article examines innovative approaches in contemporary vaccine clinical trials, investigates randomization techniques specific to vaccine studies, and delineates essential statistical considerations pertinent to vaccine trial design. The objective is to provide scientific support for vaccine development and to foster ongoing innovation and optimization within the realm of vaccine research and development.
3.Cytoplasmic and nuclear NFATc3 cooperatively contributes to vascular smooth muscle cell dysfunction and drives aortic aneurysm and dissection.
Xiu LIU ; Li ZHAO ; Deshen LIU ; Lingna ZHAO ; Yonghua TUO ; Qinbao PENG ; Fangze HUANG ; Zhengkun SONG ; Chuanjie NIU ; Xiaoxia HE ; Yu XU ; Jun WAN ; Peng ZHU ; Zhengyang JIAN ; Jiawei GUO ; Yingying LIU ; Jun LU ; Sijia LIANG ; Shaoyi ZHENG
Acta Pharmaceutica Sinica B 2025;15(7):3663-3684
This study investigated the role of the nuclear factor of activated T cells c3 (NFATc3) in vascular smooth muscle cells (VSMCs) during aortic aneurysm and dissection (AAD) progression and the underlying molecular mechanisms. Cytoplasmic and nuclear NFATc3 levels were elevated in human and mouse AAD. VSMC-NFATc3 deletion reduced thoracic AAD (TAAD) and abdominal aortic aneurysm (AAA) progression in mice, contrary to VSMC-NFATc3 overexpression. VSMC-NFATc3 deletion reduced extracellular matrix (ECM) degradation and maintained the VSMC contractile phenotype. Nuclear NFATc3 targeted and transcriptionally upregulated matrix metalloproteinase 9 (MMP9) and MMP2, promoting ECM degradation and AAD development. NFATc3 promoted VSMC phenotypic switching by binding to eukaryotic elongation factor 2 (eEF2) and inhibiting its phosphorylation in the VSMC cytoplasm. Restoring eEF2 reversed the beneficial effects in VSMC-specific NFATc3-knockout mice. Cabamiquine-targets eEF2 and inhibits protein synthesis-inhibited AAD development and progression in VSMC-NFATc3-overexpressing mice. VSMC-NFATc3 promoted VSMC switch and ECM degradation while exacerbating AAD development, making it a novel potential therapeutic target for preventing and treating AAD.
4.Innovative design and statistical considerations in vaccine clinical trials
Fengyu SUN ; Wen LIU ; Sijia DING ; Fangrong YAN ; Jun WANG ; Zhihang PENG
Chinese Journal of Preventive Medicine 2025;59(2):254-259
In recent decades, the global community has encountered several significant viral outbreaks, including the Ebola epidemic in West Africa, the Zika virus epidemic in South America, and the recent worldwide COVID-19 pandemic. In these instances, the deployment of effective vaccines has been instrumental in protecting public health. Nevertheless, as new challenges emerge in the prevention and management of infectious diseases, the traditional model of global vaccine development confronts both unprecedented opportunities and challenges. These circumstances underscore the limitations inherent in conventional vaccine development, particularly the protracted timelines and substantial costs involved. This article examines innovative approaches in contemporary vaccine clinical trials, investigates randomization techniques specific to vaccine studies, and delineates essential statistical considerations pertinent to vaccine trial design. The objective is to provide scientific support for vaccine development and to foster ongoing innovation and optimization within the realm of vaccine research and development.
5.Effect of Ephedrine on OGD/R induced neuronal injury by regulating RIP1/RIP3/MLKL signaling pathway
Peng LI ; Aixin LI ; Sijia GUO
Chinese Journal of Immunology 2025;41(9):2161-2165,2171
Objective:To explore the effect of Ephedrine on oxygen glucose deprivation/reoxygenation(OGD/R)induced neu-ronal injury by regulating receptor interacting protein-1/receptor interacting protein-3/mixed lineage kinase domain-like protein(RIP1/RIP3/MLKL)signaling pathway.Methods:OGD/R model was constructed by hypoxia/reoxygenation;human cortical neuron HCN cells were separated into control group,model group(OGD/R group),Ephedrine group(800 μg/ml),Compound 6i group(RIP1 acti-vator Compound 6i,0.94 μmol/L),Ephedrine+Compound 6i group(800 μg/ml Ephedrine+0.94 μmol/L Compound 6i),Nec-1 group(RIP1 specific inhibitor Nec-1,5 μmol/L)and Ephedrine+Nec-1 group(800 μg/ml Ephedrine+5 μmol/L Nec-1);CCK-8 method was applied to detect HCN cell proliferation;DCFH-DA method was applied to detect ROS level in HCN cells;flow cytometry was ap-plied to detect HCN cell apoptosis;ELISA was applied to detect levels of TNF-α and IL-6;Western blot was applied to detect RIP1/RIP3/MLKL signaling pathway and apoptotic proteins expressions in HCN cells.Results:Compared with control group,ROS level,apop-tosis rate,p-MLKL,RIP3,Bax,IL-6,TNF-α and RIP1 expressions of HCN cells in OGD/R group were significantly increased,A450 value and Bcl-2 protein were significantly decreased(P<0.05);compared with OGD/R group,ROS level,apoptosis rate,p-MLKL,RIP3,Bax,IL-6,TNF-α and RIP1 expressions of HCN cells in Ephedrine group and Nec-1 group were significantly reduced,A450 val-ue and Bcl-2 protein were significantly increased,the trend of Compound 6i group was opposite(P<0.05);Compound 6i was able to weaken the effect of Ephedrine in improving OGD/R induced neuronal injury,Nec-1 was able to enhance the effect of Ephedrine in im-proving OGD/R induced neuronal injury.Conclusion:Ephedrine attenuates OGD/R induced neuronal injury by inhibiting RIP1/RIP3/MLKL signaling pathway.
6.Trend in incidence of diabetes among children and adolescents in Ningbo City from 2011 to 2021
XUE Zhe ; WANG Sijia ; LU Lanlan ; WANG Yong ; GONG Qinghai ; SHEN Peng
Journal of Preventive Medicine 2024;36(9):750-754
Objective:
To investigate the incidence trend of diabetes among children and adolescents in Ningbo City, Zhejiang Province from 2011 to 2021, so as to provide the basis for the prevention and control of diabetes among children and adolescents.
Methods:
Data on diabetes incidence among children and adolescents aged 0 to 18 years in Ningbo City were collected through the Diabetes Monitoring Platform of the Ningbo Chronic Disease Collaborative Management System from 2011 to 2021. Crude incidence rates were calculated and standardized using data from the Sixth National Population Census in 2010. The trend of incidence rates were analyzed by average annual percent change (AAPC).
Results:
A total of 701 cases of diabetes among children and adolescents were reported in Ningbo City from 2011 to 2021. The crude and standardized incidence rates were 6.86/105 and 7.27/105, respectively, showing upward trends (AAPC=5.886%, 7.147%, both P<0.05). The crude and standardized incidence rates of type 1 diabetes mellitus were 3.36/105 and 3.35/105, respectively, with no significant trend observed (AAPC=1.229%, 1.449%, both P>0.05). The crude incidence rate was higher in children and adolescents aged 10 to <15 years (4.56/105) than in other age groups (all P<0.05). The standardized incidence rate was higher in females than in males (3.49/105 vs. 3.04/105, P<0.05). The standardized incidence rate was higher in urban areas than in rural areas (3.60/105 vs. 3.15/105, P<0.05). The crude and standardized incidence rates of type 2 diabetes mellitus were 3.43/105 and 3.87/105, respectively, showing upward trends (AAPC=4.904%, 7.579%, both P<0.05). The crude incidence rate was higher in children and adolescents aged 15 to 18 years (10.53/105) than in other groups (all P<0.05). The crude incidence rates in children and adolescents who aged 10 to <15 years and 15 to 18 years showed upward trends (AAPC=15.030%, 6.637%, both P<0.05). The standardized incidence rate was higher in males than in females (4.01/105 vs. 3.57/105, P<0.05). The standardized incidence rate was higher in urban areas than in rural areas (4.57/105 vs. 3.34/105, P<0.05).
Conclusions
From 2011 to 2021, the incidence of type 2 diabetes mellitus showed an upward trend, with cases mainly concentrated in children and adolescents aged 15 to 18 years, males, and those living in urban areas. The incidence of type 1 diabetes mellitus remained stable, with cases mainly concentrated in children and adolescents aged 10 to <15 years, females, and those living in urban areas.
7.Application of MRI-based image navigation and target selection in transcranial magnetic stimulation treatment
Li WANG ; Peng CHEN ; Xiuying WEI ; Yangjia LU ; Sijia LAI ; Kaihua WANG
Chinese Journal of Tissue Engineering Research 2024;28(26):4234-4241
BACKGROUND:In clinical application,the therapeutic effect of transcranial magnetic stimulation depends on the ability to accurately target the areas of the brain that need to be stimulated.In recent years,with the development of neuronavigation systems,mobile augmented reality technology,and the new methods of processing magnetic resonance imaging(MRI)data,the accuracy of stimulus target localization and the optimization of target selection are expected to improve further. OBJECTIVE:To review the principle of MRI-based image navigation and its application in transcranial magnetic stimulation and summarize the roles of different modal MRI data analyses in guiding the selection of target areas for transcranial magnetic stimulation. METHODS:An online computer search for relevant literature was performed in PubMed,CNKI database and WanFang database,with the keywords"transcranial magnetic stimulation,coil positioning,neuronavigation,augmented reality,magnetic resonance,theory."Finally,63 documents were included for review. RESULTS AND CONCLUSION:Among the traditional methods of positioning transcranial magnetic stimulation coils,the"5 cm rule"and the international electroencephalogram 10-20 positioning method are the most commonly used.These methods have the advantages of simplicity and economy,but they rely too much on the operator's experience and there were technical differences between operators.The neuronavigation system,which is based on stereotactic technology,is the guiding method for positioning transcranial magnetic stimulation coils with the highest visual degree and accuracy.It achieves visual positioning through MRI data acquisition,3D brain reconstruction,head model registration and stereogeometric positioning.It has high application value in clinical treatment and scientific research,but it cannot be promoted in medical institutions due to its high cost.For various medical institutions,mobile augmented reality is a cost-effective and efficient alternative to the neuronavigation system,which achieves visual positioning of brain tissue under the scalp through MRI data acquisition,2D/3D image construction,virtual image and real brain image superposition.It has the advantages of directly visualization and low cost,and is expected to be popularized and applied in primary medical units.Although the superiority of clinical efficacy of visual coil positioning over the electroencephalogram 10-20 localization strategy has not yet been fully demonstrated,with the progress of brain MRI data analysis,visual positioning is expected to further optimize the target selection strategy of transcranial magnetic stimulation therapy and to improve the response rate and individuation degree of transcranial magnetic stimulation treatment.This is a promising and challenging research direction in the future.
8.A case of special intestinal ulcer treated through multidisciplinary team collaboration
Yan JIA ; Qinglin WEI ; Yunjing BAI ; Hui SU ; Xing DONG ; Luping WANG ; Zhinong JIANG ; Zhiqiang ZHANG ; Sijia ZHANG ; Peng JIN
Chinese Journal of Inflammatory Bowel Diseases 2024;08(4):319-322
This article reports a rare case of systemic lupus erythematosus (SLE) complicated with rectal ulcer and stenosis, with difficulty in defecation as the main manifestation. Through multiple multidisciplinary consultations and joint decision-making between doctors and patients, combined with surgical and pathological comprehensive diagnosis, monism is considered: SLE affects the rectum. The patient has a good prognosis after undergoing medication, endoscopic local treatment, and surgical treatment.
9.Discussion on the Treatment of Chronic Fatigue Syndrome Based on the Theory of"Qi-pulse Smooth and Unobstructed"
Bin PENG ; Meng WANG ; Sijia MA ; Guowei WANG ; Shijie XU
Chinese Journal of Information on Traditional Chinese Medicine 2024;31(10):176-180
Chronic fatigue syndrome(CFS)is a chronic comprehensive disease with a slow course and often accompanied by a variety of physical and psychiatric symptoms.At present,the incidence rate is on the rise.Based on the theory of"qi-pulse smooth and unobstructed",the pathogenesis of CFS is considered to be the loss of spleen and kidney and the deficiency of qi-pulse as the root;liver and lung disorders,qi-pulse stagnation as the pivot;wind fire invasion,phlegm blood stasis as the superficiality.Treatment should focus on tonifying the spleen and tonifying the kidneys to treat its root cause.According to the degree of deficiency of spleen and kidney and the emphasis of deficiency of qi-blood yin-yang,Buzhong Yiqi Decoction,Guipi Decoction,Shengyang Yiwei Decoction,Linggui Zhugan Decoction and Shenqi Pills should be selected flexibly.The methods of soothing the liver and regulating the lungs to regulate their pivot,harmonizing the liver and lungs,and using both ascending and descending functions should be used.Chaihu Shugan Powder,Xiaoyao Powder,Sini Powder,Guizhi Decoction,Shengmai Powder,etc.could be selected flexibly according to the disease location and disease focus.Clearing wind and clearing heat,eliminating phlegm and promoting blood circulation should be used to treat its superficiality,emphasizing tonifying deficiency and resolving depression.According to the different pathogenesis of patients,the corresponding treatment method should be flexibly chosen to supplement with medication.One medical case was attached in this article as the evidence,in order to provide reference for the TCM treatment of CFS.
10.Recent advance in role of mitochondrial transfer in spinal cord injury
Sijia PENG ; Yichen MENG ; Miao HU ; Xuhui ZHOU
Chinese Journal of Neuromedicine 2024;23(6):613-617
Mitochondrial dysfunction after spinal cord injury (SCI) is recognized as a crucial pathological mechanism for secondary SCI. Studies have indicated that mitochondrial transfer plays a significant role in the process of neural regeneration following injury. After mitochondria migrating to injured neurons, they mainly function via enhancing the energy metabolism level of damaged neurons and reducing oxidative stress. In this article, we present an exhaustive overview on mechanism of mitochondrial transfer, and impact on neural regeneration after mitochondrial transfer so as to provide valuable insights for further exploring the role of mitochondrial transfer in SCI progression and offer innovative perspective on potential therapeutic strategies for SCI.


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