1.Ginkgolic acid inhibits CD8+ T cell activation and induces ferroptosis by lactate dehydrogenase A to exert immunosuppressive effect.
Sai ZHANG ; Zhuyuan SI ; Mingkun LIU ; Wenjuan HAO ; Tong XIA ; Zeyang LIU ; Gang DU ; Bin JIN
Journal of Pharmaceutical Analysis 2025;15(7):101233-101233
In the context of the development of transplant oncology, it is of great clinical significance to find a drug with both antitumor and immunosuppressive effects for liver transplantation patients with hepatocellular carcinoma (HCC). The antitumor effect of ginkgolic acid (GA) has been confirmed, and some studies suggest that GA may also have an immunosuppressive effect. The immunosuppressive effect of GA was evaluated by histopathology, T-cell subpopulation, and cytokine detection in rat liver transplantation and mouse cardiac transplantation models, and transcriptomic and metabolomic analysis was used to explore the underlying mechanism of the GA immunosuppressive effect. Metabolites, activation, and ferroptosis markers of CD8+ T cells were detected in vivo and in vitro. Based on rat liver transplantation and mouse cardiac transplantation models, the immunosuppressive effect of GA was first confirmed by histopathology, T-cell subpopulation, and cytokine detection. In the mouse cardiac transplantation model, transcriptomics combined with metabolomics demonstrated for the first time that GA inhibited lactate dehydrogenase A (LDHA) expression and pyruvate metabolism in CD8+ T cells. It was confirmed in vivo and in vitro that GA inhibited pyruvate metabolism of CD8+ T cells through LDHA, inhibiting their activation and inducing ferroptosis. Overexpression of LDHA partially reversed the effect of GA on the metabolism, activation, and ferroptosis of CD8+ T cells in vitro. GA mediates metabolic reprogramming through LDHA to inhibit the activation and induce ferroptosis of CD8+ T cells to exert an immunosuppressive effect, which lays an experimental foundation for the future clinical application of its immunosuppressive effect.
2.Expression and enzymatic characterization of a chitosanase with tolerance to a wide range of pH from Bacillus atrophaeus.
Wenjuan DU ; Awagul TURSUN ; Zhiqin DONG ; Huijuan MA ; Zhenghai MA
Chinese Journal of Biotechnology 2025;41(1):352-362
To screen and identify a chitosanase with high stability, we cloned the chitosanase gene from Bacillus atrophaeus with a high protease yield from the barren saline-alkali soil and expressed this gene in Escherichia coli. The expressed chitosanase of B. atrophaeus (BA-CSN) was purified by nickel-affinity column chromatography. The properties including optimal temperature, optimal pH, substrate specificity, and kinetic parameters of BA-CSN were characterized. The results showed that BA-CSN had the molecular weight of 31.13 kDa, the optimal temperature of 55 ℃, the optimal pH 5.5, and good stability at temperatures below 45 ℃ and pH 4.0-9.0. BA-CSN also had good stability within 4 h of pH 3.0 and 10.0, be activated by K+, Na+, Mn2+, Ca2+, Mg2+, and Co2+, (especially by Mn2+), and be inhibited by Fe3+, Cu2+, and Ag+. BA-CSN showcased the highest relative activity in the hydrolysis of colloidal chitosan, and it had good hydrolysis ability for colloidal chitin. Under the optimal catalytic conditions, BA-CSN demonstrated the Michaelis constant Km and maximum reaction rate Vmax of 9.94 mg/mL and 26.624 μmoL/(mL·min), respectively, for colloidal chitosan. In short, BA-CSN has strong tolerance to acids and alkali, possessing broad industrial application prospects.
Bacillus/genetics*
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Hydrogen-Ion Concentration
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Escherichia coli/metabolism*
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Glycoside Hydrolases/biosynthesis*
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Substrate Specificity
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Enzyme Stability
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Chitosan/metabolism*
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Temperature
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Kinetics
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Cloning, Molecular
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Bacterial Proteins/biosynthesis*
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Recombinant Proteins/genetics*
3.Exploring a Value-Based Pricing Service Incentive Model:Taking Primary Integrated Primary Healthcare Services as an Example
Yixin DU ; Dachuang ZHOU ; Wenjuan WANG ; Qian PENG ; Wenxi TANG
Chinese Health Economics 2024;43(6):1-4,17
Objective:Using primary care chronic disease management as a case,it aims to explore an economic incentive model for integrated primary healthcare services based on value pricing.Additionally,practical needs and implementation recommendations are proposed.Methods:With the help of the health technology assessment framework,it proposes that integrated health services can be priced through service effectiveness and service utility,and develops an economic incentive model with value pricing at its core based on the patient-centered incentive model for innovative healthcare services,including financing,payment,appraisal,and distribution,and puts forward feasible suggestions in the light of the needs and actuality of primary integrated services in China.Conclusion and Recommendation:The value-based pricing model for integrated health services serves as a theoretical foundation for the transformation of primary healthcare service functions and the enhancement of service dynamics,aligning with China's value-oriented service procurement strategy.This research contributes to the academic discourse by providing localized insights and a scholarly tone,contributing to the advancement of knowledge in the field.
4.Difference analysis of ADE signal for irinotecan in adults and children
Fang LI ; Xiaohuan DU ; Xiang SHANG ; Wenjuan WANG ; Mi ZHOU ; Zengyan ZHU
China Pharmacy 2024;35(11):1369-1373
OBJECTIVE To mine and analyze the post-marketing adverse drug event (ADE) signals of irinotecan in adults and children populations, and to provide a reference for clinical safe medication. METHODS ADE reports of irinotecan from the first quarter of 2004 to the first quarter of 2023 in the US FDA adverse event reporting system database were extracted and the risk signals of irinotecan were detected through the reporting odds ratio and proportional reporting ratio. Statistical analysis was performed for ADE reports and signals of patients aged<18 years (children) and ≥18 years (adults). RESULTS A total of 8 013 ADE reports with irinotecan as the primary suspect drug were identified, including 7 656 and 357 ADE reports in adults and children, respectively. A total of 518 and 75 ADE signals were detected in the adults and children, and the mainly involved systems and organs including gastrointestinal disorders, blood and lymphatic system disorders, systemic disorders and various reactions at the administration site, etc. Most of the top 20 ADE signals in terms of frequency were documented in the drug instructions of irinotecan. New ADE signals in adults included peripheral neuropathy, oral mucosal inflammation, pulmonary embolism, epidermal nevus syndrome and reproductive toxicity, while hypertension, progressive neoplasms, tumor lysis syndromes, and embolism were new ADE signals in children. CONCLUSIONS The above new suspected high-risk signals not mentioned in the instructions should raise a high level of alertness in clinical practice of irinotecan.
5.Difference analysis of ADE signal for irinotecan in adults and children
Fang LI ; Xiaohuan DU ; Xiang SHANG ; Wenjuan WANG ; Mi ZHOU ; Zengyan ZHU
China Pharmacy 2024;35(11):1369-1373
OBJECTIVE To mine and analyze the post-marketing adverse drug event (ADE) signals of irinotecan in adults and children populations, and to provide a reference for clinical safe medication. METHODS ADE reports of irinotecan from the first quarter of 2004 to the first quarter of 2023 in the US FDA adverse event reporting system database were extracted and the risk signals of irinotecan were detected through the reporting odds ratio and proportional reporting ratio. Statistical analysis was performed for ADE reports and signals of patients aged<18 years (children) and ≥18 years (adults). RESULTS A total of 8 013 ADE reports with irinotecan as the primary suspect drug were identified, including 7 656 and 357 ADE reports in adults and children, respectively. A total of 518 and 75 ADE signals were detected in the adults and children, and the mainly involved systems and organs including gastrointestinal disorders, blood and lymphatic system disorders, systemic disorders and various reactions at the administration site, etc. Most of the top 20 ADE signals in terms of frequency were documented in the drug instructions of irinotecan. New ADE signals in adults included peripheral neuropathy, oral mucosal inflammation, pulmonary embolism, epidermal nevus syndrome and reproductive toxicity, while hypertension, progressive neoplasms, tumor lysis syndromes, and embolism were new ADE signals in children. CONCLUSIONS The above new suspected high-risk signals not mentioned in the instructions should raise a high level of alertness in clinical practice of irinotecan.
6.Analysis of the research status of job competence in domestic public hospitals based on citespace
Wenjuan DU ; Qing LIN ; Ni YAN ; Yuan ZHONG
Modern Hospital 2024;24(7):1079-1083
Objective To analyze the research status of job competence in domestic public hospitals,provide directions for the construction of the talent pool in public hospitals,and promote their high-quality development.Methods Relevant litera-ture on job competence in domestic public hospitals from 2009 to 2023 was retrieved from the China National Knowledge Infra-structure(CNKI)database.Citespace software was used to analyze the selected literature in terms of publication timeline,author co-occurrence,institution co-occurrence,keyword co-occurrence,keyword clustering,and keyword burst analysis.A visualized knowledge map was constructed.Results A total of 501 valid articles were included.Research on job competence in domestic public hospitals showed an upward trend from 2009 to 2023.The research hotspots were mainly in the areas of resident physicians and nursing.The burst analysis of keywords indicated that targeted research on job competence in specific professional fields will be a future trend.Conclusion Research on job competence in domestic public hospitals is developing,but it still faces issues such as a loose network structure of author and institution co-occurrence and a lack of cooperation,as well as insufficient subdivi-sion of job competence research in specific professional fields.Therefore,it is necessary to further subdivide professional fields,expand research on job responsibilities,talent cultivation,and performance evaluation in different fields,and encourage collabo-ration among scholars and institutions.Continuous innovation and strategic responses are needed to promote the high-quality de-velopment of public hospitals.
7.Analysis of the functional improvement effect of acupuncture with the three yang meridians of the hand as the main acupuncture,governor vessel moxibustion,and translucent medicine moxibustion therapy on cervical spondylosis of wind-cold obstruction type
Wenjuan TANG ; Huanhuan JIA ; Yaonan DU ; Meirong WU
The Journal of Practical Medicine 2024;40(12):1744-1748
Objective To explore the functional improvement effect of acupuncture and moxibustion therapy of traditional Chinese medicine(mainly acupuncture on the three yang meridians of the hand,moxibustion on the governor vessel,and moxibustion through drugs)on cervical spondylosis of wind cold blocking collateral type.Methods 120 patients with wind cold obstruction type cervical spondylosis admitted to our hospital from July 2021 to July 2023 were randomly divided into two groups,with 60 cases in each group,using a random number table method.The control group was treated with conventional cervical traction,while the observation group was treated with traditional Chinese medicine acupuncture and moxibustion on the basis of the control group(mainly acupuncture at the hand Sanyang meridian+moxibustion at the governor's meridian+moxibustion through drugs).Compare the TCM syndrome scores,NDI,HO-1,LpPLA2,clinical efficacy,adverse reactions,hospitalization costs,and duration between two groups.Results After 4 weeks of treatment,the effective rate of disease in the observation group with wind cold obstructing cervical spondylosis(96.67%)was higher than that in the control group(83.33%),while the traditional Chinese medicine syndrome score,NDI score,HO-1,LpPLA2 in the observation group were lower than those in the control group(P<0.05).No adverse reactions were observed in both groups.Conclusion Traditional Chinese medicine acupuncture and moxibustion therapy(mainly acupuncture of the three yang meridians of the hand,governor vessel moxibustion,and herbal penetration moxibustion)has significant clinical effect in the application of cervical spondylosis of wind cold blocking collateral type,which can effectively improve clinical symptoms and biochemical indicators,promote the rehabilitation of cervical function,and has high safety.
8.Exploring a Value-Based Pricing Service Incentive Model:Taking Primary Integrated Primary Healthcare Services as an Example
Yixin DU ; Dachuang ZHOU ; Wenjuan WANG ; Qian PENG ; Wenxi TANG
Chinese Health Economics 2024;43(6):1-4,17
Objective:Using primary care chronic disease management as a case,it aims to explore an economic incentive model for integrated primary healthcare services based on value pricing.Additionally,practical needs and implementation recommendations are proposed.Methods:With the help of the health technology assessment framework,it proposes that integrated health services can be priced through service effectiveness and service utility,and develops an economic incentive model with value pricing at its core based on the patient-centered incentive model for innovative healthcare services,including financing,payment,appraisal,and distribution,and puts forward feasible suggestions in the light of the needs and actuality of primary integrated services in China.Conclusion and Recommendation:The value-based pricing model for integrated health services serves as a theoretical foundation for the transformation of primary healthcare service functions and the enhancement of service dynamics,aligning with China's value-oriented service procurement strategy.This research contributes to the academic discourse by providing localized insights and a scholarly tone,contributing to the advancement of knowledge in the field.
9.Exploring a Value-Based Pricing Service Incentive Model:Taking Primary Integrated Primary Healthcare Services as an Example
Yixin DU ; Dachuang ZHOU ; Wenjuan WANG ; Qian PENG ; Wenxi TANG
Chinese Health Economics 2024;43(6):1-4,17
Objective:Using primary care chronic disease management as a case,it aims to explore an economic incentive model for integrated primary healthcare services based on value pricing.Additionally,practical needs and implementation recommendations are proposed.Methods:With the help of the health technology assessment framework,it proposes that integrated health services can be priced through service effectiveness and service utility,and develops an economic incentive model with value pricing at its core based on the patient-centered incentive model for innovative healthcare services,including financing,payment,appraisal,and distribution,and puts forward feasible suggestions in the light of the needs and actuality of primary integrated services in China.Conclusion and Recommendation:The value-based pricing model for integrated health services serves as a theoretical foundation for the transformation of primary healthcare service functions and the enhancement of service dynamics,aligning with China's value-oriented service procurement strategy.This research contributes to the academic discourse by providing localized insights and a scholarly tone,contributing to the advancement of knowledge in the field.
10.Exploring a Value-Based Pricing Service Incentive Model:Taking Primary Integrated Primary Healthcare Services as an Example
Yixin DU ; Dachuang ZHOU ; Wenjuan WANG ; Qian PENG ; Wenxi TANG
Chinese Health Economics 2024;43(6):1-4,17
Objective:Using primary care chronic disease management as a case,it aims to explore an economic incentive model for integrated primary healthcare services based on value pricing.Additionally,practical needs and implementation recommendations are proposed.Methods:With the help of the health technology assessment framework,it proposes that integrated health services can be priced through service effectiveness and service utility,and develops an economic incentive model with value pricing at its core based on the patient-centered incentive model for innovative healthcare services,including financing,payment,appraisal,and distribution,and puts forward feasible suggestions in the light of the needs and actuality of primary integrated services in China.Conclusion and Recommendation:The value-based pricing model for integrated health services serves as a theoretical foundation for the transformation of primary healthcare service functions and the enhancement of service dynamics,aligning with China's value-oriented service procurement strategy.This research contributes to the academic discourse by providing localized insights and a scholarly tone,contributing to the advancement of knowledge in the field.

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