1.Criteria for pancreas donor selection in islet transplantation and the experience of Changzheng hospital
Hanxiang ZHONG ; Junfeng DONG ; Wenyuan GUO ; Shengxian LI ; Hao YIN ; Yuanyu ZHAO ; Junsong JI
Organ Transplantation 2026;17(1):164-169
Diabetes mellitus, characterized by glucose metabolism disorders and marked by insulin deficiency or insulin resistance, has seen a continuous rise in prevalence. In recent years, islet transplantation has matured as a therapeutic approach for diabetes, becoming an important method for glycemic control and the reduction of diabetes-related complications. Donor selection directly influences transplant outcomes, and various research institutions worldwide have proposed multiple scoring systems to optimize donor assessment, such as the University of Alberta scoring system and the North American Islet Donor Score. This article explores the impact of key factors such as donor age, body mass index and ischemia time on islet transplantation. Combining practical experience in pancreatic donor selection from Shanghai Changzheng Hospital, it proposes screening criteria for pancreatic donors suitable for China, aiming to provide new evidence for improving the success rate of islet transplantation.
2.Rapid enrichment and SERS differentiation of various bacteria in skin interstitial fluid by 4-MPBA-AuNPs-functionalized hydrogel microneedles
Ying YANG ; Xingyu WANG ; Yexin HU ; Zhongyao LIU ; Xiao MA ; Feng FENG ; Feng ZHENG ; Xinlin GUO ; Wenyuan LIU ; Wenting LIAO ; Lingfei HAN
Journal of Pharmaceutical Analysis 2025;15(3):564-576
Bacterial infection is a major threat to global public health,and can cause serious diseases such as bacterial skin infection and foodborne diseases.It is essential to develop a new method to rapidly di-agnose clinical multiple bacterial infections and monitor food microbial contamination in production sites in real-time.In this work,we developed a 4-mercaptophenylboronic acid gold nanoparticles(4-MPBA-AuNPs)-functionalized hydrogel microneedle(MPBA-H-MN)for bacteria detection in skin inter-stitial fluid.MPBA-H-MN could conveniently capture and enrich a variety of bacteria within 5 min.Surface enhanced Raman spectroscopy(SERS)detection was then performed and combined with ma-chine learning technology to distinguish and identify a variety of bacteria.Overall,the capture efficiency of this method exceeded 50%.In the concentration range of 1 × 10 7 to 1 × 10 10 colony-forming units/mL(CFU/mL),the corresponding SERS intensity showed a certain linear relationship with the bacterial concentration.Using random forest(RF)-based machine learning,bacteria were effectively distinguished with an accuracy of 97.87%.In addition,the harmless disposal of used MNs by photothermal ablation was convenient,environmentally friendly,and inexpensive.This technique provided a potential method for rapid and real-time diagnosis of multiple clinical bacterial infections and for monitoring microbial contamination of food in production sites.
3.Analysis on allergic diseases from the "lung being responsible for regulating visceral activities"
Huan YU ; Wenyuan GUO ; Yunfei SHUAI ; Leqin XIONG ; Mengqing WANG
International Journal of Traditional Chinese Medicine 2025;47(12):1664-1669
The symptoms of allergic diseases are complex and changeable, and the pathogenesis is complex and difficult to distinguish, and the prevalence of allergic diseases has gradually increased in recent years. Due to the relative limitations of Western medical treatment, in order to further meet the clinical treatment goals, the "lung being responsible for regulating visceral activities" is now used as the theoretical basis, combined with modern medicine, to explore the pathogenesis and etiological mechanism of this disease. Based on the classics, it is proposed that allergic diseases have four characteristics: "onset of allergies, seasonality of disease onset, diversity of symptoms, and recurrence of recovery", and summarized the etiology and pathogenesis as "stagnation of incubative pathogenic factors and disharmony between the nutritive and defensive levels, imbalance of waterways and obstruction of phlegm and dampness, a dysfunction in the pivotal qi flow leading to malnourishment of the skin and hair, the intermingling of cold and heat leads to the dysfunction of the orifices, a disorder of the blood-governing organs leads to extravasation of blood", and advocated that the treatment should take into account the symptoms, syndromes, viscera, and seasons, and clarify the syndromes, which would provide a new research idea for the exploration of the TCM connotation of this disease.
4.Rapid enrichment and SERS differentiation of various bacteria in skin interstitial fluid by 4-MPBA-AuNPs-functionalized hydrogel microneedles.
Ying YANG ; Xingyu WANG ; Yexin HU ; Zhongyao LIU ; Xiao MA ; Feng FENG ; Feng ZHENG ; Xinlin GUO ; Wenyuan LIU ; Wenting LIAO ; Lingfei HAN
Journal of Pharmaceutical Analysis 2025;15(3):101152-101152
Bacterial infection is a major threat to global public health, and can cause serious diseases such as bacterial skin infection and foodborne diseases. It is essential to develop a new method to rapidly diagnose clinical multiple bacterial infections and monitor food microbial contamination in production sites in real-time. In this work, we developed a 4-mercaptophenylboronic acid gold nanoparticles (4-MPBA-AuNPs)-functionalized hydrogel microneedle (MPBA-H-MN) for bacteria detection in skin interstitial fluid. MPBA-H-MN could conveniently capture and enrich a variety of bacteria within 5 min. Surface enhanced Raman spectroscopy (SERS) detection was then performed and combined with machine learning technology to distinguish and identify a variety of bacteria. Overall, the capture efficiency of this method exceeded 50%. In the concentration range of 1 × 107 to 1 × 1010 colony-forming units/mL (CFU/mL), the corresponding SERS intensity showed a certain linear relationship with the bacterial concentration. Using random forest (RF)-based machine learning, bacteria were effectively distinguished with an accuracy of 97.87%. In addition, the harmless disposal of used MNs by photothermal ablation was convenient, environmentally friendly, and inexpensive. This technique provided a potential method for rapid and real-time diagnosis of multiple clinical bacterial infections and for monitoring microbial contamination of food in production sites.
5.Exploration on the Pharmacodynamic Mechanism of Wenhe Decoction in the Treatment of Febrile Seizures Based on the NLRP3/Caspase-1/GSDMD Signaling Pathway
Huan YU ; Wenyuan GUO ; Yijue DENG ; Xin LI ; Mengqing WANG ; Yunfei SHUAI
Chinese Journal of Information on Traditional Chinese Medicine 2025;32(7):25-33
Objective To investigate the mechanism of Wenhe Decoction in the treatment of febrile seizures through network pharmacology based on NLRP3/Caspase-1/GSDMD signaling pathway;To conduct experimental verification.Methods The active components and targets of Wenhe Decoction were retrieved and screened through TCMSP,BATMAN-TCM,PubChem databases and SwissADME platform.The disease targets of febrile seizures were found in GenCards,OMIM and DisGeNET databases.The intersection targets of Wenhe Decoction and the disease and the active components corresponding to the intersection targets were imported into Cytoscape 3.7.2 software to construct the Chinese materia medica-active components-targets network.The intersection targets were submitted to the STRING database to construct a protein-protein interaction network,and then the intersection targets were imported into the Metascape database for GO and KEGG pathway enrichment analysis.The febrile seizures rat model was established,and Wenhe Decoction of 4.05,8.1 and 16.2 g/kg were given respectively by gavage for 21 days.The rats were placed in batches in(45±0.5)℃constant temperature water bath to induce convulsive seizures,and the convulsive latency time and convulsive duration of rats were recorded.The behavioral differences of mice were observed.The morphology of hippocampal tissue were observed by HE and Nissl staining.The ROS content of hippocampal tissue was detected by DHE fluorescent probe technology.The serum ATP,GABA,Glu,Caspase-1,GSDMD,IL-1β and IL-18 contents were detected by ELISA,and the expression of NLRP3 inflammasome-related protein in hippocampal tissue was detected by Western blot.Results Network pharmacology analysis obtained 98 active components of Wenhe Decoction and 1 838 targets.162 targets were obtained by intersecting with disease targets,the core components for the treatment of febrile seizures were β-sitosterol,quercetin,luteolin,trans-squalene,sitosterol,saponin,etc.,and the core targets were EGFR,TNF,JUN,MTOR,etc.,and mainly through the regulation of inflammatory response,apoptosis,mitochondrial function and energy metabolism,mediating anti-inflammatory pathways such as PI3K-Akt signaling pathway and calcium signaling pathway to exert anticonvulsant effects.The experimental results showed that Wenhe Decoction could prolong the convulsive latency and shorten the duration of convulsions in febrile seizures model rats,decrease the level of convulsions,and the pathological damage of hippocampal tissue was improved and damaged neurons were repaired.The serum contents of ROS,Glu,Caspase-1,GSDMD,IL-1β and IL-18 were significantly reduced,and ATP and GABA contents significantly increased.The protein expressions of NLRP3,ASC,pro-Caspase-1,pro-IL-1β and pro-IL-18 in hippocampal tissue significantly decreased.Conclusion Wenhe Decoction may intervene in febrile seizures rats through NLRP3/Caspase-1/GSDMD signaling pathway,inhibit pyroptosis to reduce the occurrence of neuroinflammation,and then affect the balance of neurotransmitters Glu and GABA to play a role in anti-febrile seizures and prevent brain tissue damage.
6.Exploration on the Pharmacodynamic Mechanism of Wenhe Decoction in the Treatment of Febrile Seizures Based on the NLRP3/Caspase-1/GSDMD Signaling Pathway
Huan YU ; Wenyuan GUO ; Yijue DENG ; Xin LI ; Mengqing WANG ; Yunfei SHUAI
Chinese Journal of Information on Traditional Chinese Medicine 2025;32(7):25-33
Objective To investigate the mechanism of Wenhe Decoction in the treatment of febrile seizures through network pharmacology based on NLRP3/Caspase-1/GSDMD signaling pathway;To conduct experimental verification.Methods The active components and targets of Wenhe Decoction were retrieved and screened through TCMSP,BATMAN-TCM,PubChem databases and SwissADME platform.The disease targets of febrile seizures were found in GenCards,OMIM and DisGeNET databases.The intersection targets of Wenhe Decoction and the disease and the active components corresponding to the intersection targets were imported into Cytoscape 3.7.2 software to construct the Chinese materia medica-active components-targets network.The intersection targets were submitted to the STRING database to construct a protein-protein interaction network,and then the intersection targets were imported into the Metascape database for GO and KEGG pathway enrichment analysis.The febrile seizures rat model was established,and Wenhe Decoction of 4.05,8.1 and 16.2 g/kg were given respectively by gavage for 21 days.The rats were placed in batches in(45±0.5)℃constant temperature water bath to induce convulsive seizures,and the convulsive latency time and convulsive duration of rats were recorded.The behavioral differences of mice were observed.The morphology of hippocampal tissue were observed by HE and Nissl staining.The ROS content of hippocampal tissue was detected by DHE fluorescent probe technology.The serum ATP,GABA,Glu,Caspase-1,GSDMD,IL-1β and IL-18 contents were detected by ELISA,and the expression of NLRP3 inflammasome-related protein in hippocampal tissue was detected by Western blot.Results Network pharmacology analysis obtained 98 active components of Wenhe Decoction and 1 838 targets.162 targets were obtained by intersecting with disease targets,the core components for the treatment of febrile seizures were β-sitosterol,quercetin,luteolin,trans-squalene,sitosterol,saponin,etc.,and the core targets were EGFR,TNF,JUN,MTOR,etc.,and mainly through the regulation of inflammatory response,apoptosis,mitochondrial function and energy metabolism,mediating anti-inflammatory pathways such as PI3K-Akt signaling pathway and calcium signaling pathway to exert anticonvulsant effects.The experimental results showed that Wenhe Decoction could prolong the convulsive latency and shorten the duration of convulsions in febrile seizures model rats,decrease the level of convulsions,and the pathological damage of hippocampal tissue was improved and damaged neurons were repaired.The serum contents of ROS,Glu,Caspase-1,GSDMD,IL-1β and IL-18 were significantly reduced,and ATP and GABA contents significantly increased.The protein expressions of NLRP3,ASC,pro-Caspase-1,pro-IL-1β and pro-IL-18 in hippocampal tissue significantly decreased.Conclusion Wenhe Decoction may intervene in febrile seizures rats through NLRP3/Caspase-1/GSDMD signaling pathway,inhibit pyroptosis to reduce the occurrence of neuroinflammation,and then affect the balance of neurotransmitters Glu and GABA to play a role in anti-febrile seizures and prevent brain tissue damage.
7.Opportunities and challenges of marginal donor liver
Xinyi LU ; Fei TENG ; Hong FU ; Yuanyu ZHAO ; Liye ZHU ; Jiayong DONG ; Jiaxi MAO ; Wenyuan GUO
Organ Transplantation 2024;15(3):463-468
With persistent breakthrough and maturity of surgical procedures and postoperative immunosuppressive therapy, the survival rate of liver transplant recipients and grafts has been significantly increased. The shortage of donor liver has become the main obstacle for clinical development of liver transplantation. How to expand the source of donor liver has become an urgent issue. Groundbreaking progresses have been made in the use of common marginal donor livers in clinical liver transplantation, such as elderly donor liver, steatosis donor liver, viral hepatitis donor liver and liver from donation after cardiac death. Nevertheless, multiple restrictions still exist regarding the use of marginal donor liver. Consequently, the definition of marginal donor liver and research progress in the application of common marginal donor livers were reviewed, and the opportunities and challenges of mariginal donoor liver were illustrated, aiming to provide reference for expanding the donor pool for clinical liver transplantation and bringing benefits to more patients with end-stage liver disease.
8.Immunological mechanisms in steatotic liver diseases: An overview and clinical perspectives
Mengyao YAN ; Shuli MAN ; Long MA ; Lanping GUO ; Luqi HUANG ; Wenyuan GAO
Clinical and Molecular Hepatology 2024;30(4):620-648
Steatotic liver diseases (SLD) are the principal worldwide cause of cirrhosis and end-stage liver cancer, affecting nearly a quarter of the global population. SLD includes metabolic dysfunction-associated alcoholic liver disease (MetALD) and metabolic dysfunction-associated steatotic liver disease (MASLD), resulting in asymptomatic liver steatosis, fibrosis, cirrhosis and associated complications. The immune processes include gut dysbiosis, adiposeliver organ crosstalk, hepatocyte death and immune cell-mediated inflammatory processes. Notably, various immune cells such as B cells, plasma cells, dendritic cells, conventional CD4+ and CD8+ T cells, innate-like T cells, platelets, neutrophils and macrophages play vital roles in the development of MetALD and MASLD. Immunological modulations targeting hepatocyte death, inflammatory reactions and gut microbiome include N-acetylcysteine, selonsertib, F-652, prednisone, pentoxifylline, anakinra, JKB-121, HA35, obeticholic acid, probiotics, prebiotics, antibiotics and fecal microbiota transplantation. Understanding the immunological mechanisms underlying SLD is crucial for advancing clinical therapeutic strategies.
9.Comparison of Diagnostic Performance Between PI-RADS v2.1 and PI-RADS v2 for Prostate Cancer: A Meta-analysis
Guojie BAI ; Kexin LI ; Wenyuan LIU ; Guang LAN ; Hong GUO ; Yaping SUN ; Yu WANG ; Weiling TONG ; Keyu ZHANG
Cancer Research on Prevention and Treatment 2023;50(10):981-987
Objective To compare the diagnostic performance of PI-RADS v2.1 and PI-RADS v2 in the detection of clinically significant prostate cancer(csPCa) by Meta-analysis. Methods The major biomedical databases were searched (CNKI, CBM, Medline, and Embase) with the keywords "PIRADS v2.1" or "PI-RADS v2.1". The Quality Assessment of Diagnostic Accuracy Studies Tool v2 (QUADAS-2) was used to evaluate literature quality. Meta-analysis was performed using STATA17.0 and ReMan5.4 software. Forest plots were used to represent the sensitivity and specificity of PI-RADS v2.1 and PI-RADS v2 for each study. Sensitivity, specificity, positive likelihood ratio, negative likelihood ratio, and diagnostic odds ratio were combined, and diagnostic performance was evaluated using asummary receiver operating characteristic curve (SROC). Subgroup analysis was performed on three covariables: tumor location, threshold, and the nationality of authors. Results A total of 12 studies were included, involving 3 158 patients and 3 243 lesions. Forall zones and the whole gland, PI-RADS v2.1 had a larger area under the SROC curve (AUC) for csPCa performance, compared with PI-RADS v2. Subgroup analysis: PI-RADS v2.1 also had a larger area under the SROC (AUC) to detect transitional zone csPCa. Different diagnostic thresholds: when a score of 4 was used for the threshold, PI-RADS v2.1 had the maximum area under SROC (AUC) for csPCa performance detection. Author nationality: Researches of PI-RADS v2.1 in Chinese authors had the largest area under the SROC (AUC) in detecting csPCa performance. Conclusion Compared with PI-RADS v2, the diagnostic performance of PI-RADS v2.1 in detecting csPCa is not obviously improved and overall specificity is still low.
10. Optimization strategy of antibiotic dosing regimen in intensive care unit patients with augmented renal clearance
Zilong DANG ; Wenyuan CHENG ; Yuhui WEI ; Xin'an WU ; Zilong DANG ; Haiyang LIU ; Yangfan ZHANG ; Jinfeng LIU ; Tianwei ZHANG ; Xin'an WU ; Bin LI ; Hong GUO ; Xiaohui XU ; Yile LI ; Xin'an WU
Chinese Journal of Clinical Pharmacology and Therapeutics 2023;28(5):561-571
The incidence of augmented renal clearance (ARC) in intensive care patients (ICU) is exceptionally high, and these patients are often co-morbid with infection. The occurrence of ARC will significantly increase the clearance rate of antibiotics, making it difficult for conventional doses to reach effective therapeutic concentrations and affect the patient's anti-infective treatment effect and prognosis. It can be seen that it is crucial to formulate a reasonable dosing regimen for ICU patients with ARC. Regrettably, few reports in China about the adjustment strategy of antibiotic dosing regimens for ARC patients. Therefore, this article reviews the domestic and foreign literature for reference to provide evidence for medical personnel to adjust the dose of antibacterial drugs for such patients.

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