1.Genetic Homology Analysis of Bloodstream Infection Secondary to Intestinal Colonization with Carbapenem-Resistant Klebsiella Pneumoniae
Xinyue LI ; Hongjuan ZHANG ; Xiaoyan ZHU ; Meijia HUANG ; Yunmin XU ; Xundie LI ; Xinyi ZHENG ; Shaoxuan LI ; Bin SHAN
Medical Journal of Peking Union Medical College Hospital 2025;16(5):1138-1147
To investigate the genetic relatedness between carbapenem-resistant A retrospective analysis was conducted on clinical data from patients screened for carbapenem-resistant Among 12 878 patients screened for CRE, 60 (0.47%) were identified with intestinal CRKP colonization. Of these, 6 (10.0%) developed bloodstream infections, with an all-cause mortality rate of 66.7% (4/6) during hospitalization. The predominant strain type among paired isolates was ST11-KL64 producing KPC-2, accounting for 91.7%(11/12) of cases. Except for one patient(with a categorical agreement of 82.6%), colonizing and bloodstream isolates from the same patient showed complete agreement (100% categorical agreement) in antimicrobial susceptibility profiles for all antibiotics except tigecycline. Intraclass correlation coefficients for biofilm formation and siderophore production were both > 0.75 of all paired strains, indicating high phenotypic consistency. Except for one patient, core genome single nucleotide polymorphism (SNP) analysis and phylogenetic reconstruction revealed high genetic homology between colonizing and bloodstream isolates from the same patient (SNP difference < 10). Clonal relatedness was also observed among colonizing strains from different departments (SNP difference < 120). Although the intestinal colonization rate of CRKP is low, it poses a high mortality risk once bloodstream infection occurs. The high consistency in antimicrobial resistance profiles, biofilm formation, siderophore production, and genomic homology between colonizing and bloodstream isolates suggests that intestinal colonization is the direct source of subsequent invasive infection. Enhanced early screening, dynamic monitoring, risk-stratified prevention, and optimized intervention strategies are recommended to reduce the risk of CRKP infection and mortality.
2.An improved reporter gene assay for evaluating the biological activity of recombinant human growth hormone.
Xiaoming ZHANG ; Heyang LI ; Ying HUANG ; Ping LV ; Lvyin WANG ; Kezheng XU ; Yi LI ; Xinyue HU ; Yue SUN ; Cheng-Gang LIANG ; Jing LI
Journal of Pharmaceutical Analysis 2025;15(5):101073-101073
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3.The novel combination of astragaloside IV and formononetin protects from doxorubicin-induced cardiomyopathy by enhancing fatty acid metabolism.
Xinyue YU ; Zhaodi HAN ; Linling GUO ; Shaoqian DENG ; Jing WU ; Qingqing PAN ; Liuyi ZHONG ; Jie ZHAO ; Hui HUI ; Fengguo XU ; Zunjian ZHANG ; Yin HUANG
Chinese Journal of Natural Medicines (English Ed.) 2025;23(10):1171-1182
Astragali Radix (AR), a traditional Chinese medicine (TCM), has demonstrated therapeutic efficacy against various diseases, including cardiovascular conditions, over centuries of use. While doxorubicin serves as an effective chemotherapeutic agent against multiple cancers, its clinical application remains constrained by significant cardiotoxicity. Research has indicated that AR exhibits protective properties against doxorubicin-induced cardiomyopathy (DIC); however, the specific bioactive components and underlying mechanisms responsible for this therapeutic effect remain incompletely understood. This investigation seeks to identify the protective bioactive components in AR against DIC and elucidate their mechanisms of action. Through network medicine analysis, astragaloside IV (AsIV) and formononetin (FMT) were identified as potential cardioprotective agents from 129 AR components. In vitro experiments using H9c2 rat cardiomyocytes revealed that the AsIV-FMT combination (AFC) effectively reduced doxorubicin-induced cell death in a dose-dependent manner, with optimal efficacy at a 1∶2 ratio. In vivo, AFC enhanced survival rates and improved cardiac function in both acute and chronic DIC mouse models. Additionally, AFC demonstrated cardiac protection while maintaining doxorubicin's anti-cancer efficacy in a breast cancer mouse model. Lipidomic and metabolomics analyses revealed that AFC normalized doxorubicin-induced lipid profile alterations, particularly by reducing fatty acid accumulation. Gene knockdown studies and inhibitor experiments in H9c2 cells demonstrated that AsIV and FMT upregulated peroxisome proliferator activated receptor γ coactivator 1α (PGC-1α) and PPARα, respectively, two key proteins involved in fatty acid metabolism. This research establishes AFC as a promising therapeutic approach for DIC, highlighting the significance of multi-target therapies derived from natural herbals in contemporary medicine.
Animals
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Doxorubicin/adverse effects*
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Saponins/administration & dosage*
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Isoflavones/pharmacology*
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Rats
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Cardiomyopathies/prevention & control*
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Mice
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Fatty Acids/metabolism*
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Myocytes, Cardiac/metabolism*
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Triterpenes/administration & dosage*
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Male
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Drugs, Chinese Herbal/administration & dosage*
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Humans
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Cardiotonic Agents/administration & dosage*
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Mice, Inbred C57BL
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Cell Line
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Astragalus Plant/chemistry*
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Astragalus propinquus
4.Mechanism of Eclipta prostrata L-Ligustrum lucidum Ait in the treatment of periodontitis.
Mengru GUO ; Tianyi ZHANG ; Jingwen HUANG ; Xinyue HUANG ; Yi ZHENG ; Li ZHANG
West China Journal of Stomatology 2025;43(5):696-710
OBJECTIVES:
This study aimed to explore the potential target and molecular mechanism of Eclipta prostrata L-Ligustrum Lucidum Ait (EPL-LLA) in the treatment of periodontitis by using network pharmacology and molecular docking technology, and to explore its biocompatibility, regulatory effects on inflammatory factors, and antioxidant acti-vity through in vitro experiments.
METHODS:
The active components and potential targets of EPL-LLA were screened and predicted through a variety of databases, and the intersection of EPL-LLA and periodontitis targets was selected. The protein interaction network (PPI) was analyzed by the string platform. The Metascape database was used for gene ontology (GO) and Kyoto encyclopedia of genes and genomes (KEGG) pathway enrichment analysis. The active ingredients from the top 6 degrees were docked with the core targets, and the results of binding energy were visualized. An in vitro cell model was established to evaluate the biocompatibility, modulation of inflammatory factors, and antioxidative effects of EPL-LLA through cell counting kit-8 (CCK-8), quantitative real-time polymerase chain reaction (qRT-PCR) and 2',7'-Dichlorodihydrofluorescein diacetate (DCFH-DA) fluorescent probe assays.
RESULTS:
Screening revealed 13 active components in EPL corresponding to 220 potential targets, 10 active components in LLA corresponding to 283 potential targets, and 1 643 periodontitis-related targets, with 91 shared targets among the three. GO analysis of the shared targets yielded 5 271 entries, while KEGG enrichment analysis indicated involvement in 253 signaling pathways. Molecular docking confirmed stable binding between the top 6 active components and core targets. CCK-8 assays demonstrated good biocompatibility of EPL-LLA at concentrations 0.02 mg/mL (P<0.05). qRT-PCR showed that EPL-LLA reduced the mRNA expression of pro-inflammatory factors in macrophages stimulated by Porphyromonas gingivalis lipopolysaccharide while upregulating anti-inflammatory factor mRNA expression (P<0.05). DCFH-DA fluorescence probe assays confirmed the reactive oxygen species (ROS)-scavenging capacity of EPL-LLA (P<0.05).
CONCLUSIONS
EPL-LLA may treat periodontitis through multi-component, multi-target, and multi-pathway mechanisms, providing a theoretical basis for further research on its therapeutic potential.
Periodontitis/drug therapy*
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Molecular Docking Simulation
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Eclipta/chemistry*
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Humans
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Protein Interaction Maps
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Ligustrum/chemistry*
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Antioxidants/pharmacology*
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Drugs, Chinese Herbal/therapeutic use*
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Network Pharmacology
5.Lactic acid——a multi-faceted player in immune modulation
Xinyue WANG ; Xiaoling LI ; Wenxin GUO ; Bangguo HUANG ; Jiaping WANG ; Li WANG ; Xiaoling CHEN
Immunological Journal 2024;40(2):206-210
As the main product of anaerobic or aerobic glycolysis,lactic acid has long been considered to be only the metabolic waste of this process,but now researches have are gradually revealing that lactic acid,as an important signaling molecule,plays a key immune regulatory role by acting on lactic acid transporters,lactate receptors and intracellular direct sensors in immune cells.In chronic inflammatory diseases,lactic acid helps maintain a pro-inflammatory environment that encourages immune cells to remain at the site of inflammation.In the event of infection,lactic acid impairs host immunity.In the tumor microenvironment(TME),the increase in lactic acid production and the resulting TME acidification promote tumor growth and invasion,and inhibit the body's immune response to tumor antigens.This review focuses on the recent research progress on the role of lactic acid in immune regulation.
6.Construction and Application of Pediatric Attention Deficit Hyperactivity Disorder Sepcialized Disease Database
Xinyue LU ; Jian HUANG ; Lingdong CHEN ; Zhu ZHU ; Rongwang YANG ; Xinxin LI ; Yonggen ZHAO ; Gang YU
Journal of Medical Informatics 2024;45(9):75-81
Purpose/Significance The establishment of a specialized database for children with attention deficit hyperactivity disorder(ADHD)aims to address the issues of low data usage efficiency caused by scattered and low-quality diagnostic data.Method/Process Based on clinical diagnostic data of children with ADHD from March 2020 to April 2024,natural language processing(NLP)techniques are utilized to realize the post-structuring of the data.Furthermore,standardization of the database is performed according to industry standards and treatment guidelines.Result/Conclusion The specialized database for children with ADHD is established,comprising data from 75 835 ADHD children and 280 000 clinical visits.This database supports various applications such as the analysis of basic character-istics of the ADHD population,prediction model construction,resource allocation optimization,and clinical pathway optimization.
7.ADAMDEC1 regulates growth and migration of pancreatic carcinoma cells through Wnt/β-catenin signaling pathway
Xiaoyong HUANG ; Xinyue FAN ; Xiangrong XU ; Xiaoyin LIN ; Yusi LIU ; Hai-Yan SHI ; Juan DU ; Hongmei JING
Chinese Journal of Pathophysiology 2024;40(8):1369-1377
AIM:To investigate the effect of a disintegrin and metalloproteinase(ADAM)domain-like decy-sin 1(ADAMDEC1)knockdown on the proliferation,migration and invasion of pancreatic carcinoma cells.METHODS:Expression levels of ADAMDEC1 in pancreatic carcinoma tissues were analyzed using the GEPIA and UALCAN online da-tabases.Western blot analysis was employed to detect the protein expression levels of ADAMDEC1 in pancreatic carcino-ma cell lines(MIA PaCa-2 and PANC-1)and pancreatic ductal cell line(hTERT-HPNE).The effects of ADAMDEC1 knockdown on cell proliferation,migration and invasion were evaluated using CCK-8,colony formation,wound-healing and Transwell assays.Additionally,Western blot analysis was used to detect the effects of ADAMDEC1 knockdown on the expression levels of migration and invasion markers,as well as Wnt/β-catenin signaling pathway-related proteins in pancre-atic carcinoma cells.Furthermore,a recovery experiment was conducted to assess the role of Wnt/β-catenin signaling path-way agonist CHIR-99021 in ADAMDEC1 knockdown-induced inhibition of pancreatic carcinoma cell growth and migra-tion.RESULTS:(1)ADAMDEC1 was highly expressed in pancreatic carcinoma cells.(2)Knockdown of ADAMDEC1 led to a significant reduction in the proliferation,migration and invasion of pancreatic carcinoma cells.(3)Knockdown of ADAMDEC1 resulted in increased E-cadherin protein expression and decreased levels of matrix metalloproteinase 9,N-cadherin and vimentin proteins,alongside a reduction in the expression of Wnt/β-catenin signaling pathway-related pro-teins.(4)Co-treatment of pancreatic carcinoma cells with CHIR-99021 and ADAMDEC1 small interfering RNA reversed the inhibitory effects of ADAMDEC1 knockdown on cell proliferation,migration,and invasion.CONCLUSION:ADAMDEC1 is highly expressed in pancreatic carcinoma.Targeted silencing of ADAMDEC1 has the potential to inhibit the prolifera-tion,migration and invasion of pancreatic carcinoma cells by regulating the Wnt/β-catenin signaling pathway.
8.Mechanism of ZFP36L1 regulating pancreatic carcinoma cell growth
Yang YANG ; Xiaoyong HUANG ; Wenxue ZHAO ; Ning GAO ; Xinyue FAN ; Jing ZHANG ; Juan DU
Chinese Journal of Pathophysiology 2024;40(10):1815-1825
AIM:To investigate the impact and regulatory mechanisms of zinc finger protein 36-like protein 1(ZFP36L1)on pancreatic carcinoma cell growth.METHODS:The ZFP36L1 expression in pancreatic carcinoma and its correlation with patient prognosis were analyzed using online databases UALCAN and GEPIA.Western blot was utilized to detect ZFP36L1 protein expression in pancreatic ductal cells(HPNE)and three different pancreatic carcinoma cell lines.CCK-8 and cell colony formation assays were performed to evaluate the effects of ZFP36L1 on pancreatic cancer cell prolif-eration.Wound healing and Transwell assays were used to assess the impact of ZFP36L1 expression changes on pancreatic carcinoma cell migration and invasion.Flow cytometry experiments were used to analyze the effect of ZFP36L1 on the pan-creatic carcinoma cell cycle process.Bioinformatics analysis was conducted to predict potential ZFP36L1 interacting pro-teins.Co-immunoprecipitation experiments were carried out to confirm the interaction between ZFP36L1 and mitogen-acti-vated protein kinase 14(MAPK14).Rescue experiments were performed to assess the function of MAPK14 in ZFP36L1-regulated pancreatic carcinoma cell growth.RESULTS:(1)ZFP36L1 is highly expressed in pancreatic carcinoma and is positively correlated with poor prognosis in pancreatic carcinoma patients.Compared to HPNE,ZFP36L1 is highly ex-pressed in MIA PaCa-2 and ASPC-1 cells,but relatively low in PANC-1 cells.(2)ZFP36L1 overexpression significantly increased the cell viability,colony formation,migration,and invasion abilities of PANC-1 and MIA PaCa-2 cells,while siRNA interference of ZFP36L1 led to opposite results.(3)ZFP36L1 promotes the entry of pancreatic carcinoma cells into the S phase of the cell cycle.(4)ZFP36L1 interacts with MAPK14 to regulate pancreatic cancer cell growth.MAPK14 overexpression reversed the cell viability and migration abilities of pancreatic carcinoma cells overexpressing ZFP36L1.Furthermore,it also decreased the cell viability and migration abilities of pancreatic carcinoma cells with ZFP36L1 inter-ference.CONCLUSION:ZFP36L1 is a potential oncogene in pancreatic carcinoma growth and may regulate pancreatic carcinoma cell growth through cell cycle modulation and interaction with MAPK14.
9.Change trend of doctor trustrank among residents in China and its influencing factors analysis
Xinyue TAN ; Wenjia HUANG ; Zhan SHU ; Bo SUN
Chongqing Medicine 2024;53(20):3184-3190,3195
Objective To understand the change trend of doctor trustrank among the residents,and to analyze its influencing factors to provide reference for finding the effective strategies to enhance the doctor trustrank.Methods The analytical framework was constructed based on the social determinism.The data from the China Family Panel Studies(CFPS)in 2014,2016,2018 and 2020 were adopted to analyze the change trend of residents'doctor trustrank.The OLS regression model was used to explore the influencing factors,and the Shapley value decomposition model was used to analyze the contribution degree of influencing factors on doctor trustrank.Results The residents'doctor trustrank was gradually decreased in 2014,2016 and 2018(6.817,6.762,6.730),which in 2020 was significantly increased(7.151).The OLS regression model analysis showed that the personal characteristics,social trust,quality of medical services,access to information and subjective socioeconomic status were related to the residents'doctor trustrank.The social trust during 2014-2020 was the main factor affecting the residents'doctor trustrank,followed by the medical service quality,subjective socialeconomic status and information channels.The personal characteristics had the lowest contri-bution degree to doctor trustrank.Conclusion The residents'doctor trustrank is comprehensively affected by the factors such as social trust,medical service quality,subjective socioeconomic status and information chan-nels.It is needed to optimize the comprehensive treatment measures to promote the persistent elevation of doctor trustrank.
10.Pancreatic cystic neoplasms:research progress in diagnosis and treatment of endoscopic ultrasound
Xinyue WANG ; Liqi SUN ; Haojie HUANG ; Zhendong JIN
Academic Journal of Naval Medical University 2024;45(10):1281-1287
Pancreatic cystic neoplasm(PCN)is a category of pancreatic tumors with significant heterogeneity.In recent years,the detection rate of PCN has been increasing,and it has gradually become a concern of clinicians.Endoscopic ultrasound(EUS)can be close to the pancreas for scanning and biopsy,and it has certain advantages in the diagnosis and treatment of PCN.This review mainly summarizes the latest progress of EUS in the diagnosis and treatment of PCN.Cyst fluid molecular markers,such as Kirsten rat sarcoma viral oncogene homolog,GNAS complex locus,Von Hippel-Lindau tumor suppressor gene,as well as emerging endoscopic technologies such as EUS-guided needle based confocal laser endomicroscopy and through-the-needle biopsy,have all showed the potential to significantly improve the diagnostic accuracy of PCN.EUS-guided ablation is an emerging minimally invasive treatment technique for PCN,with the efficacy and safety of chemical ablation being supported by a substantial amount of research.

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