1.LC-MS-based phosphoproteomic profiling of the acute phase of myocardial infarction in mice
Yang GAO ; Jian ZHANG ; Shiyu HU ; Jingpu WANG ; Yiwen WANG ; Jiatian CAO ; Feng ZHANG
Chinese Journal of Clinical Medicine 2025;32(3):392-402
Objective To investigate dynamic changes in myocardial protein phosphorylation during the acute phase of myocardial infarction (MI) in mice. Methods Six 8-week-old C57BL/6J mice were randomly assigned to MI model (n=3) or sham-operated control (n=3) groups. Cardiac tissues were harvested 72 hours post-intervention for proteomic analysis. Phosphorylation modifications were systematically characterized using liquid chromatography-mass spectrometry (LC-MS). Bioinformatics analyses included differential phosphorylation screening, functional enrichment, hierarchical clustering, and protein-protein interaction network. Results LC-MS identified 1 921 differentially phosphorylated sites (20 tyrosine and 1 901 serine/threonine sites) across 851 proteins. Compared with controls, MI hearts exhibited significant phosphorylation upregulation at 1 545 sites and downregulation at 376 sites (P<0.05). Conclusions This study delineates MI-associated phosphorylation dynamics, providing mechanistic insights and potential therapeutic targets for acute MI intervention.
2.Research progress on the mechanism of metformin in the intervention of cognitive impairment-related diseases
Yuan LIU ; Yumin XU ; Shiyu LIU ; Huayu YAN ; Xin YANG ; Hongcai XU ; Yabo WU
China Pharmacy 2025;36(15):1942-1946
Cognitive impairment (CI) is a clinical syndrome characterized by progressive decline in advanced cognitive functions such as memory, thinking, and judgment. Its etiology and pathogenesis are complex, and there is currently a lack of specific drug interventions. Metformin, as a first-line hypoglycemic drug for type 2 diabetes, not only lowers blood glucose levels but also improves CI. This article reviews and summarizes the pharmacological effects and mechanisms of metformin in improving Alzheimer’s disease, diabetes cognitive impairment, cognitive impairment after chemotherapy, in order to provide novel insights and approaches for the treatment of CI-related diseases. Studies have shown that the mechanism by which MET intervenes in CI mainly includes regulating β-amyloid protein and tau protein metabolism, reducing insulin resistance, inhibiting neuroinflammation, improving synaptic plasticity, improving mitochondrial dysfunction, regulating gut microbiota and lipid metabolism, etc. Future research needs to be conducted through interdisciplinary collaboration, fully integrating multiple omics data, and combining advanced technologies to further reveal their mechanisms of effect.
3.Research advances in primary biliary cholangitis with dyslipidemia
Shiyu YUAN ; Huanhuan YANG ; Yingmei TANG
Journal of Clinical Hepatology 2024;40(1):151-156
Primary biliary cholangitis (PBC) is an autoimmune liver disease characterized by progressive and non-purulent inflammation of small- and medium-sized bile ducts in the liver. Recent studies have shown that abnormal lipid metabolism is relatively common in patients with PBC, and 76% of PBC patients have dyslipidemia. The effects and harms of dyslipidemia have attracted much attention. Lipid metabolism disorders play an important role in the progression of PBC. This article mainly reviews the research advances in the manifestation, role, diagnosis, and treatment of lipid metabolism disorders in PBC, so as to provide new ideas for the treatment of PBC.
4.Research Progress in Anti-tumor Mechanisms of Prunellae Spica and Its Active Components
Mengqi LI ; Yu SHI ; Shiyu YANG ; Jieyu LI ; Yu HU ; Wenxiu SUN ; Lingjun LI
Chinese Journal of Modern Applied Pharmacy 2024;41(5):716-726
As a common clinical Chinese medicine, Prunellae Spica has the effects of clearing liver-fire, improving eyesight, resolving massesand detumescence, and has strong anti-tumor effects against thyroid cancer, breast cancer, liver cancer and other cancers. Extracts of Prunellae Spica and its active components can play an anti-tumor role in a variety of ways, including cell apoptosis, inhibiting cell invasion and metastasis, inhibiting cell proliferation, inducing autophagy, anti tumor angiogenesis, reversing tumor multidrug resistance and regulating immune function, by regulating miRNA and Wnt/β-catenin, PI3/AKT, AMPK/mTOR/ULK1, RANKL/RANK/OPG and other signal pathways . In this paper, the anti-tumor mechanism of Prunellae Spica extract was reviewed, in order to provide reference for further research and application.
5.Advances on Chemical Constituents of Volatile Oil from Angelicae Sinensis Radix and Their Pharmacological Effect
Yu SHI ; Mengqi LI ; Shiyu YANG ; Yu HU ; Wenxiu SUN ; Lingjun LI
Chinese Journal of Modern Applied Pharmacy 2024;41(7):1006-1014
Angelicae Sinensis Radix, drived from a medicinal and edible plant Angelica sinensis, with the reputation of "nine Angelica recipes out of ten". The volatile oils from Angelicae Sinensis Radix was the main medicinal component of Angelicae Sinensis Radix, mainly including benzene phthalides, terpenoids and alkanes, its chemical composition was complex. Such factors as growth environment, concoction process, extraction methods and other factors all can trigger changes in volatile oil constituents and content from Angelicae Sinensis Radix. Angelicae Sinensis Radix essential oil has diverse pharmacological activities such as anti-hypotension, protection of ischemia-reperfusion injury, asthma, anti-inflammatory and anti-cancer, etc., implying its high clinical application value. This paper reviewed the literature on the volatile oil of Angelicae Sinensis Radix in the past ten years, the chemical components of Angelicae Sinensis Radix were sorted out and the factors affecting the chemical components were summarized, focusing on its anti-hypotensive, ischemia-reperfusion injury protection, asthma and other active effects, in order to provide reference for the further development and utilization of the volatile oil of Angelicae Sinensis Radix.
6.Mechanism of action of macrophage efferocytosis in acute and chronic liver diseases and related targeted therapy
Huanhuan YANG ; Shiyu YUAN ; Yingmei TANG
Journal of Clinical Hepatology 2024;40(4):839-843
Efferocytosis refers to the process by which apoptotic cells are engulfed and cleared by phagocytes, including professional phagocytes, such as macrophages and dendritic cells, and non-professional phagocytes, such as epithelial cells. Liver macrophages are the main cells with the function of efferocytosis in the liver. In recent years, an increasing number of studies have shown that various acute and chronic liver diseases are associated with the efferocytosis function of liver macrophages, including acute liver injury, alcoholic liver disease, nonalcoholic fatty liver disease, autoimmune liver disease, liver fibrosis, and liver cancer. This article elaborates on the expression of molecules associated with the efferocytosis function of macrophages, the process of efferocytosis, and the role of efferocytosis function in different liver diseases, so as to provide new ideas for the treatment of liver diseases.
7.Health impact assessment of the development of employment and social security in Deqing County, Zhejiang Province
Shiyu HAN ; Bingbing ZHU ; Yiming ZHANG ; Yuting YANG ; Chaowei FU
Shanghai Journal of Preventive Medicine 2024;36(3):274-279
ObjectiveTo identify the possible health impact of the 14th five⁃year plan for the development of employment and social security in Deqing County and propose improvement measures through health impact assessment. MethodsBased on the data of Deqing County, stakeholder interviews and Delphi Consultation Method, this study described the current status of employment and social security and analyzed the potential health impacts of implementing the 14th five⁃year plan for the development of employment and social security in Deqing County. ResultsThrough a quick assessment process, the results showed that the implementation of the plan would bring mixed health impacts. Positive impacts included enhanced social security capacity, improved health levels of low-income populations and families, increased convenience of medical treatment, and improved efficiency of health services. Negative impacts included reduced accessibility of digital services for the elderly, increased gap in benefits for retirees, increased risk of discrimination against disabled individuals, increased risks of layoffs and unemployment for vulnerable groups, and increased employment instability for middle-aged and elderly populations. ConclusionThe 14th five⁃year plan for the development of employment and social security in Deqing County will bring a series of positive health impacts, but negative health impacts also warrant attention.
8.Motor cortex stimulation for the treatment of trigeminal neuralgia after brainstem infarction:A case report
Journal of Central South University(Medical Sciences) 2024;49(1):54-57
Secondary trigeminal neuralgia after brainstem infarction is rare and rarely reported.A patient with secondary trigeminal neuralgia after brainstem infarction was admitted to the Department of Neurosurgery,Xiangya Hospital,Central South University.The patient was a 44 years old male who underwent motor cortex stimulation treatment after admission.The effect was satisfactory in the first week after surgery,but the effect was not satisfactory after one week.This disease is relatively rare and the choice of clinical treatment still requires long-term observation.
9.Study on the Mechanism of Hepatotoxicity Induced by Rhubarb Based on Network Pharmacology and Experimental Verification
Hongxin WANG ; Shiyu ZHANG ; Yang JIN ; Taotao CAO ; Qin QIN ; Wen LIU
World Science and Technology-Modernization of Traditional Chinese Medicine 2024;26(1):167-178
Objective The potential mechanism of hepatotoxicity induced by rhubarb was preliminarily explored by network pharmacology and verified by cell experiments.Methods Based on network pharmacology,component collection and target prediction are carried out through multiple databases.PPI network construction,GO enrichment analysis and KEGG pathway analysis were combined with software to systematically predict the mechanism of hepatotoxicity induced by rhubarb.The pathway information predicted by network pharmacology was verified by primary hepatocyte experiments and Western blot experiments.Results The results of network pharmacology showed that RH was the main component of hepatotoxicity induced by rhubarb.Seventeen core targets of hepatotoxicity induced by rhubarb were obtained.KEGG results suggested that DNA damage and apoptosis were one of the key mechanisms of hepatotoxicity induced by rhubarb.The results of primary hepatocytes and Western blot showed that RH could inhibit the viability of primary hepatocytes in a time-dose dependent manner.ABT and SFP can significantly reduce the toxicity of RH on primary liver cells in mice,and RFP can increase the toxicity of RH to mouse primary liver cells.Upregulation of γ-H2AX and PARP-1 protein in primary liver cells of mice after treatment with different concentrations of RH.Conclusion RH in rhubarb can significantly inhibit the viability of mouse primary hepatocytes,and its toxicity to mouse primary hepatocytes is mainly caused by the metabolic activation of RH by CYP 2C9.RH can activate PARP-1 protein,phosphorylate H2AX,induce DNA damage and apoptosis in mouse primary hepatocytes.
10.Rapid Analysis of Chemical Constituents in Shenxianshengmai Oral Liquid by UHPLC-Q Exactive Focus MS/MS
Shiyu ZONG ; Zhibiao DI ; Qiqi LIU ; Zhuangzhuang HUANG ; Hong ZHANG ; Ye LI ; Feng LIU ; Yang LIU
World Science and Technology-Modernization of Traditional Chinese Medicine 2024;26(1):218-228
Objective To explore the chemical basis of Shenxianshengmai oral liquid.Method UHPLC-Q Exactive Focus MS/MS technology was used to identify the chemical components of Shenxianshengmai oral liquid.The chromatographic separation was performed on a Thermo Accucore aQ C18 column(150 mm×2.1 mm,2.6 μm)with mobile phase gradient elution of 0.1%formic acid aqueous solution(A)and methanol(B)for 0-13 min,5%-60%B;13-27 min,60%-95%B;27-30 min,95%B,the flow rate was 0.3 mL·min-1,and the column temperature was at 30℃.The mass spectrometry was performed by heating electrospray ionization(H-ESI)with positive and negative ion scanning modes.The scanning range was m/z 120-1800,and the collision energies were 30 eV,50 eV and 70 eV.Result A total of 160 components were identified,including 29 flavonoids,24 organic acids,21 alkaloids,19 terpenoids,15 phenylpropanoids,12 saponins and 40 other components.Six chemical constituents(rutin,psoralenoside,isopsoralenoside,psoralen,isopsoralen and bakuchiol)were confirmed by comparison with reference substances.Conclusion In this study,an UHPLC-Q Exactive Focus MS/MS method has been established for accurate,rapid and systematic identification of the constituents in Shenxian Shengmai oral liquid,which provides an important basis for clarifying the chemical basis and quality control.


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