1.Epidemiological investigation on a case of acute flaccid paralysis with detection of vaccine-derived poliovirus
TANG Xuewen ; BAI Yiran ; SU Ying ; GONG Liming ; YAN Rui ; ZHU Yao ; HE Hanqing
Journal of Preventive Medicine 2025;37(2):178-180,188
Abstract
In April 2021, type Ⅰ vaccine-derived poliovirus (VDPV) was detected from two fecal samples of a male infant with acute flaccid paralysis (AFP) in Zhejiang Province when he was admitted to the Children's Hospital Affiliated to Fudan University in Shanghai, with 12 and 14 nucleotide mutations in the VP1 region, respectively. The case had a history of immunization with three doses of poliovirus vaccines, and grade Ⅲ proximal muscle strength and grade Ⅱ distal muscle strength of the right lower limb. After symptomatic treatment, the activity of the right lower limb and the muscle strength was significantly restored, thus he was discharged. VDPV was not detected from subsequent (the 8th to 12th) fecal samples of the case and fecal samples of close contacts. No similar cases were found in medical institutions in the county, surrounding areas, neighboring villages or towns. Since the case did not exhibit clinical symptoms of poliomyelitis caused by VDPV, poliomyelitis was excluded, and the case was diagnosed with hemophilia type A based on the epidemiological investigation, laboratory tests, and the history of poliomyelitis vaccination. This event involved cross-provincial (municipal) cooperation and was responsed promptly, preventing further spread of the virus. It suggested that the sensitivity of the AFP case surveillance system should be maintained, environmental monitoring methods should be increased, and the poliomyelitis vaccination should be promoted to prevent the spread of the virus.
2.Study on the promotion of podocyte pyroptosis by high glucose-stimulated GMC-derived exosomes and the intervention effects of Tongluo Yishen Formula.
Wen YAN ; Binjie HAN ; Li LIN ; Liming CHEN ; Jie QU ; Xiaohui LI
Chinese Journal of Cellular and Molecular Immunology 2025;41(6):495-504
Objective To investigate the effects of exosomes (Exo) derived from high glucose-stimulated glomerular mesangial cells (GMC) on the kidneys of C57BL/6 mice and the intervention mechanism of Tongluo Yishen Formula (TLYSF). Methods The rat GMC were divided into a normal glucose group (NG, with 5.6 mmol/L glucose) and a high glucose group (HG, with 30 mmol/L glucose). After 24 hours of culture, the supernatant was collected, and exosomes were extracted using the ultracentrifugation method. The exosomes were then identified by transmission electron microscopy and Western blot analysis. Male C57BL/6 mice were divided into three groups: NO-Exo group, NG-Exo group, and HG-Exo group. These groups were respectively administered tail vein injections of PBS buffer, exosomes derived from GMC cultured in normal glucose, and exosomes derived from GMC cultured in high glucose, three times a week for a total of 8 weeks. After 8 weeks, the mice in the HG-Exo group were randomly divided into three subgroups: the HG-Exo group [gavaged with saline], the HG-Exo+TLYSF group [gavaged with TLYSF at 34.32 g/(kg.d)], and the HG-Exo + VAL group [gavaged with valsartan suspension at 10.4 mg/(kg.d)], and the intervention lasted for 4 weeks. Urinary microalbumin (mALb), urinary N-acetyl-β-D-aminoglucosidase (NAG), glycated hemoglobin (HbA1c), serum creatinine (Scr) and urea nitrogen (BUN) were detected. Transmission electron microscopy was used to observe the ultrastructure of renal tissues. TUNEL was used to detect the DNA damage of renal tissue cells. Immunofluorescence was used to detect the expression of NOD-like receptor family pyrin domain containing 3 (NLRP3) and wilms tumor 1(WT-1). RT-PCR was used to detect the mRNA levels of NLRP3, cysteinyl aspartate-specific proteinase 1 (caspase-1), interleukin-1 beta (IL-1β), miR-200c-3p and miR-148a-3p. Western Blot was employed to detect the protein expression of NLRP3, apoptosis-associated speck-like protein containing a CARD (ASC), caspase-1 and IL-1β. Results Compared with the NG-Exo group, mice in the HG-Exo group exhibited significantly increased levels of mALb, urinary NAG, Scr and BUN. Transmission electron microscopy revealed ruptured podocyte membranes and swollen mitochondria. The positive rate of cells stained by the TUNEL increased, with elevated optical density of NLRP3 and decreased optical density of WT-1. Additionally, there was a significant increase in the level of NLRP3, caspase-1, IL-1β mRNA, as well as miR-200c-3p and miR-148a-3p. The protein expression of NLRP3, ASC, caspase-1, and IL-1β also increased. Compared with HG-Exo group, mice in the HG-Exo+TLYSF group showed decreased levels of mALb, urinary NAG, Scr, and BUN. The podocyte membranes were relatively intact, and mitochondrial damage was alleviated. The positive rate of cells stained by the TUNEL decreased, along with a reduction in the optical density of NLRP3 and an increase in the optical density of WT-1. Furthermore, the mRNA expression levels of NLRP3, caspase-1, IL-1β, miR-200c-3p, and miR-148a-3p were all downregulated to varying degrees. The protein expression levels of NLRP3, ASC, caspase-1, and IL-1β also decreased. Conclusion Exosomes derived from GMC stimulated by high glucose can damage the kidneys of mice and induce podocyte pyroptosis. TLYSF may ameliorate podocyte pyroptosis by downregulating the expression of exosomal miR-200c-3p and miR-148a-3p and inhibiting the activation of the NLRP3/ASC/caspase-1 pathway.
Animals
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Exosomes/ultrastructure*
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Glucose/pharmacology*
;
Male
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Podocytes/metabolism*
;
Drugs, Chinese Herbal/pharmacology*
;
Mice, Inbred C57BL
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Mice
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Mesangial Cells/metabolism*
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Pyroptosis/drug effects*
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Rats
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MicroRNAs/genetics*
3.Yiqi Zishen Formula ameliorates inflammation in mice with chronic obstructive pulmonary disease by inhibiting the PI3K/Akt/NF-κB signaling pathway.
Liming WANG ; Hongrui CHEN ; Yan DU ; Peng ZHAO ; Yujie WANG ; Yange TIAN ; Xinguang LIU ; Jiansheng LI
Journal of Southern Medical University 2025;45(7):1409-1422
OBJECTIVES:
To investigate pharmacologically active components of Yiqi Zishen Formula (YZF) and their mechanisms for alleviating airway inflammation in mice with chronic obstructive pulmonary disease (COPD).
METHODS:
Ultra-high-performance liquid chromatography coupled with quadrupole-orbitrap mass spectrometry was employed to characterize the chemical components in YZF and YZF-medicated rat serum. A compound-disease target network was constructed based on serum components of YZF to screen the key pathways and targets using enrichment analysis. A mouse model of cigarette smoke-induced COPD was used to evaluate the anti-inflammatory effect of YZF and validate the expression of key proteins in network pharmacology-enriched pathways. Fifty male C57BL/6J mice were randomized equally into control group, COPD model group, high- and low-dose YZF treatment groups, and N-acetylcysteine treatment group. Pulmonary function of the mice was assessed using whole-body plethysmography, and lung histopathology, alveolar structure, and airway remodeling were analyzed using HE staining. The levels of IL-1β, IL-6, and TNF‑α in bronchoalveolar lavage fluid (BALF) were determined with ELISA, and pulmonary expressions of PI3K, Akt, phosphorylated Akt (p-Akt), p65, and phosphorylated p65 (p-p65) were detected using immunohistochemistry.
RESULTS:
We identified a total of 156 chemical components (including 26 flavonoids or flavonoid glycosides, 27 alkaloids, and 11 saponins) in YZF and 43 prototype components in medicated rat serum. Network pharmacology revealed 704 YZF-related targets and 1199 COPD-associated targets. Integrated analysis suggested that the anti-COPD effects of YZF were associated with the PI3K-Akt signaling pathway. In mouse models of COPD, YZF treatment significantly increased mean alveolar number and peak expiratory flow (P<0.05), reduced mean linear intercept, bronchial wall thickness, lung coefficient, and BALF cytokine levels, and suppressed the expressions of PI3K, Akt, p-Akt, p65, and p-p65 in the lung tissues.
CONCLUSIONS
YZF alleviates COPD symptoms and airway inflammation in mice possibly by inhibiting the PI3K/Akt/NF‑κB pathway through its multiple components that interact with multiple targets.
Animals
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Pulmonary Disease, Chronic Obstructive/metabolism*
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Drugs, Chinese Herbal/therapeutic use*
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Signal Transduction/drug effects*
;
Male
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Mice, Inbred C57BL
;
Mice
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Proto-Oncogene Proteins c-akt/metabolism*
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Phosphatidylinositol 3-Kinases/metabolism*
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NF-kappa B/metabolism*
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Inflammation/drug therapy*
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Rats
4.MultiKano: an automatic cell type annotation tool for single-cell multi-omics data based on Kolmogorov-Arnold network and data augmentation.
Siyu LI ; Xinhao ZHUANG ; Songbo JIA ; Songming TANG ; Liming YAN ; Heyang HUA ; Yuhang JIA ; Xuelin ZHANG ; Yan ZHANG ; Qingzhu YANG ; Shengquan CHEN
Protein & Cell 2025;16(5):374-380
5.Construction and Application of Comprehensive Evaluation System of Operation Benefit of Clinical Departments in Cancer Hospitals
Jin WU ; Yan WU ; Binru FANG ; Shunjie JIANG ; Yongting YANG ; Hao ZHANG ; Xianhong HUANG ; Xiaohe WANG ; Liming ZHU
Chinese Hospital Management 2024;44(8):33-36
Objective To build a comprehensive evaluation system for the operating benefit of clinical departments in cancer hospitals,so as to provide data support for the fine operation management of hospitals.Methods Literature review and semi-structured interview were used to form the index pool.Two rounds of Delphi expert consultation were used to determine the index of the evaluation system,and the analytic hierarchy process was used to determine the index weight.Finally,the weighted TOPSIS was used for empirical case analysis.Results The positive coefficient in the two rounds of Delphi expert consultation were 82.6%and 100%,the authority coefficient was 0.808,and the coordination coefficient was between 0 and 1.All indexes at all levels passed the consistency test.Finally,a comprehensive evaluation system consisting of 4 dimensions,19 indexes in surgery,16 indicators in radiotherapy and 16 indicators in internal medicine was constructed.Indicators at all levels were tested for consistency,resulting in the construction of a comprehensive evaluation system consisting of 4 dimensions,19 indicators for surgery and 16 indicators each for radiotherapy and internal medicine departments.Conclusion The comprehensive evaluation system of operating benefit of clinical departments in cancer hospitals can help hospitals and departments to find out the shortcomings of operation,build the path of operating benefit improvement,and realize the connotation improvement and high-quality development of hospitals.
6.Chest CT Imaging Features of Indeterminate Pulmonary Nodules and Outcomes in Patients with High-grade Soft Tissue Sarcoma: A Single-center Retrospective Study
Yuanrong WANG ; Liming ZHANG ; Daji SONAM ; Yan ZHU ; Gentao FAN ; Yicun WANG ; Xin SHI ; Sujia WU ; Guangxin ZHOU
Cancer Research on Prevention and Treatment 2024;51(2):99-103
Objective To explore the imaging features, clinical outcome, and prognosis of indeterminate pulmonary nodules (IPN) in patients with high-grade soft tissue sarcoma. Methods A retrospective study of 82 patients with high-grade soft tissue sarcoma who have IPNs. The clinical characteristics, imaging features of IPN, and survival of patients were analyzed with statistical software. Results The IPN size of 82 patients was 6.453±0.864 mm. IPN diameter, shape, density, and nodule discovery interval may be CT imaging features related to malignancy tendency. Age (
7.Treatment of Gastric Ulcer in Active Stage with Carbuncle Theory in Toxicity-heat Theory Based on "State-target Medicine"
Liming CHEN ; Guozheng LIU ; Shuo YANG ; Yan LI ; Yangyang SUN ; Yuening BIAN ; Yilin ZHAO ; Jingdong XIAO
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(18):217-227
"State-target medicine" is a traditional Chinese medicine (TCM) diagnosis and treatment theoretical system proposed by Academician Tong Xiaolin based on the current development of modern medicine. The active stage of gastric ulcer, as a precancerous state of gastric cancer, has a great impact on people's health. Prof. ZHOU Xuewen, a master of TCM, innovatively put forward the theory of "toxicity-heat" etiology for the active stage of gastric ulcer, which plays an important guiding role in clinical diagnosis and treatment. The article took the theoretical system of "state-target medicine" as the framework to explain the rationale, method, formula, and medicine of Prof. ZHOU Xuewen, who applied the Xiaoyong Kuidekang based on the "toxicity-heat" theory to treat the gastric ulcer in the active stage. The Chinese medical name of gastric ulcer, "gastric carbuncle", was established, and it was believed that gastric ulcer is born due to "toxicity" and is based on "toxicity and heat". In the course of the disease, "toxicity", "heat", "deficiency", and "stasis" coexisted, and its pathogenesis was divided into three phases, namely, toxicity-heat accumulation phase, toxicity-heat affecting the health phase, and weakened body resistance and strengthened toxicity phase. According to the positioning of gastric ulcer as an "internal carbuncle", Prof. ZHOU Xuewen proposed the treatment of gastric ulcer in the active stage with "carbuncle theory" and introduced the surgical methods of "elimination", "support", and "tonifying" into the treatment of gastric ulcer in the active stage. Prof. ZHOU Xuewen took "clearing heat and removing toxins, eliminating carbuncle and generating muscle" as the basic treatment of the disease. For different stages of the disease, Prof. ZHOU Xuewen emphasized the use of the methods of clearing heat and removing toxins, supporting rot and muscle growth, and strengthening the spleen and harmonizing the stomach and created the representative formula for the treatment of gastric ulcer in the active stage with "carbuncle theory", namely "Xiaoyong Kuidekang", which could regulate state and targets.
8.Interaction effect between vitamin D and gestational diabetes mellitus in the second trimester
Ziwen MA ; Xiaoying DING ; Liming CHU ; Yan ZHANG ; Aifeng ZHANG ; Yanjun ZHU ; Xun WANG ; Zhenyu XIE
Shanghai Journal of Preventive Medicine 2024;36(11):1094-1099
ObjectiveTo investigate the relationship between serum 25(OH)D and gestational diabetes mellitus in the second trimester (GDM), to analyze the interaction effect of key risk factors, so as to provide a basis for clinical personalized vitamin D supplementation. MethodsA total of 266 pregnant women who registered and took regular obstetric check-ups in Shanghai Pudong New Area Health Care Hospital for Women and Children from June to December 2022, were selected as the research subjects. According to the results of oral glucose tolerance test (OGTT), the subjects were divided into the GDM group (131) and control group (135). The level of serum 25(OH)D at the time of OGTT were detected and other clinical indicators were followed up. ResultsThe age, systolic blood pressure in early pregnancy, pre-pregnancy BMI, FPG, OGTT 1-hour and 2-hour glucose, GHb, HOMA-IR, TG, AST, Cr, D-D, FDP and SF at 35 weeks’ gestation of the pregnant women were higher in the GDM group than that of the pregnant women in the normal group, while gestational weight gain and serum 25(OH)D level were significantly lower than that of the pregnant women in the normal group. Serum 25(OH)D was negatively correlated with HOMA-IR and WBS’s, but positively correlated with TG and ALT. Serum 25(OH)D was non-linearly correlated with the risk of GDM in an inverted J-shape, and there was an interaction effect of advanced age, pre-pregnancy obesity and vitamin D deficiency on the risk of GDM. ConclusionVitamin D is non-linearly associated with the risk of GDM. The risk of GDM is significantly reduced when serum 25(OH)D level ≥30 ng∙mL-1.
9.Construction and Application of Comprehensive Evaluation System of Operation Benefit of Clinical Departments in Cancer Hospitals
Jin WU ; Yan WU ; Binru FANG ; Shunjie JIANG ; Yongting YANG ; Hao ZHANG ; Xianhong HUANG ; Xiaohe WANG ; Liming ZHU
Chinese Hospital Management 2024;44(8):33-36
Objective To build a comprehensive evaluation system for the operating benefit of clinical departments in cancer hospitals,so as to provide data support for the fine operation management of hospitals.Methods Literature review and semi-structured interview were used to form the index pool.Two rounds of Delphi expert consultation were used to determine the index of the evaluation system,and the analytic hierarchy process was used to determine the index weight.Finally,the weighted TOPSIS was used for empirical case analysis.Results The positive coefficient in the two rounds of Delphi expert consultation were 82.6%and 100%,the authority coefficient was 0.808,and the coordination coefficient was between 0 and 1.All indexes at all levels passed the consistency test.Finally,a comprehensive evaluation system consisting of 4 dimensions,19 indexes in surgery,16 indicators in radiotherapy and 16 indicators in internal medicine was constructed.Indicators at all levels were tested for consistency,resulting in the construction of a comprehensive evaluation system consisting of 4 dimensions,19 indicators for surgery and 16 indicators each for radiotherapy and internal medicine departments.Conclusion The comprehensive evaluation system of operating benefit of clinical departments in cancer hospitals can help hospitals and departments to find out the shortcomings of operation,build the path of operating benefit improvement,and realize the connotation improvement and high-quality development of hospitals.
10.Construction and Application of Comprehensive Evaluation System of Operation Benefit of Clinical Departments in Cancer Hospitals
Jin WU ; Yan WU ; Binru FANG ; Shunjie JIANG ; Yongting YANG ; Hao ZHANG ; Xianhong HUANG ; Xiaohe WANG ; Liming ZHU
Chinese Hospital Management 2024;44(8):33-36
Objective To build a comprehensive evaluation system for the operating benefit of clinical departments in cancer hospitals,so as to provide data support for the fine operation management of hospitals.Methods Literature review and semi-structured interview were used to form the index pool.Two rounds of Delphi expert consultation were used to determine the index of the evaluation system,and the analytic hierarchy process was used to determine the index weight.Finally,the weighted TOPSIS was used for empirical case analysis.Results The positive coefficient in the two rounds of Delphi expert consultation were 82.6%and 100%,the authority coefficient was 0.808,and the coordination coefficient was between 0 and 1.All indexes at all levels passed the consistency test.Finally,a comprehensive evaluation system consisting of 4 dimensions,19 indexes in surgery,16 indicators in radiotherapy and 16 indicators in internal medicine was constructed.Indicators at all levels were tested for consistency,resulting in the construction of a comprehensive evaluation system consisting of 4 dimensions,19 indicators for surgery and 16 indicators each for radiotherapy and internal medicine departments.Conclusion The comprehensive evaluation system of operating benefit of clinical departments in cancer hospitals can help hospitals and departments to find out the shortcomings of operation,build the path of operating benefit improvement,and realize the connotation improvement and high-quality development of hospitals.


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