1.Mycobacterium tuberculosis PPE59 promotes its survival in host cells by regulating cytokine secretion of Mycobacterium smegmatis infected macrophages.
Chutong WANG ; Fangzheng GUO ; Yamin SONG ; Jing WEI ; Minying LI ; Hongtao WANG ; Tao XU
Chinese Journal of Cellular and Molecular Immunology 2025;41(10):875-881
Objective To study the effect of Mycobacterium tuberculosis (Mtb) Pro-Pro-Glu-59 (PPE59) protein on the biological function of Mycobacterium smegmatis (Ms) and the regulation of host cell immune response. Methods PPE59 gene fragment was obtained by PCR amplification, cloned into pALACE, constructed into recombinant pALACE-PPE59 vector, and electro-transformed into Ms. Western blot was applied to analyse PPE59 expression and subcellular localization. The survival of Ms_Vec and Ms_PPE59 under low acid (pH=3 and pH=5) conditions and active surface pressure sodium dodecyl sulfate (SDS) conditions and their intracellular survival in macrophages were analyzed. ELISA was used to detect the cytokine (IL-1β, IL-6, IL-12, TNF-α and IL-10) expression levels of Ms_Vec and Ms_PPE59 infected macrophages. Results PPE59 protein localized to the cell wall of Ms can enhance the acid-resistance and anti-SDS effect of Ms, which is conducive to the survival of Ms in macrophages. PPE59 significantly decreased the secretion levels of pro-inflammatory cytokines (IL-1β, IL-6, IL-12 and TNF-α), and promoted the secretion levels of anti-inflammatory cytokine (IL-10). Conclusion PPE59 enhances the survival ability of Ms under low acid and SDS pressure and promotes its intracellular survival by regulating the cytokine secretion levels.
Mycobacterium smegmatis/metabolism*
;
Macrophages/metabolism*
;
Cytokines/metabolism*
;
Mycobacterium tuberculosis/metabolism*
;
Bacterial Proteins/metabolism*
;
Animals
;
Mice
;
Antigens, Bacterial/metabolism*
2.Research progress on early screening of diabetes after acute pancreatitis
Li DU ; Jiahui DONG ; Baiqiang LI ; Fangzheng JIANG ; Chi ZHANG ; Ruixin BAI ; Fang WANG ; Weiqin LI
Chinese Journal of Hepatobiliary Surgery 2025;31(11):876-880
Post-acute pancreatitis diabetes mellitus (PPDM-A) is a common type of exocrine pancreatic diabetes. It is very important to clarify the risk factors of PPDM-A and effectively screen for diabetes in patients with acute pancreatitis to prevent the occurrence and development of PPDM-A. This article elaborates on the three aspects of PPDM-A, including high-risk population, screening timing and methods, as well as PPDM-A screening in children and adolescents, aiming to provide a basis for early detection of PPDM-A and timely targeted treatment for patients.
3.Analysis on Clinical Trial Registration Status of TCM for the Treatment of Cervical Spondylosis
Zibo GAO ; Kai CHEN ; Fangzheng LIN ; Yongjin LI ; Dingkun LIN
Chinese Journal of Information on Traditional Chinese Medicine 2025;32(12):53-59
Objective To analyze the current status and development trends of registered clinical trials of TCM for the treatment of cervical spondylosis;To provide references for relevant trials.Methods Clinical trials of TCM for the treatment of cervical spondylosis registered in Chinese Clinical Trial Registry(ChiCTR),International Traditional Medicine Clinical Trial Registry(ITMCTR),and ClinicalTrials.gov from the establishment of the databases to December 31,2024 were retrieved,and the registration characteristic information of the included trials was analyzed.Results A total of 168 registered trials involving 32 665 subjects were included.The number of registered TCM clinical trials for cervical spondylosis showed an overall upward trend;the average implementation cycle of the studies was(20.1±10.7)months;the regions where the research sponsoring institutions were located were mainly in Shanghai,Beijing,and Guangdong;the funding sources were mostly from government finance and institutional funds;a total of 133 studies underwent ethical review;the main study type was interventional research,and the main study design was randomized parallel-controlled trials;the intervention measures were mainly acupuncture,manual therapy,and Chinese materia medica;the main outcome indicators were scale scores;17 studies met the requirements for data sharing and management plans.Conclusion The number of registered TCM clinical trials for cervical spondylosis is generally increasing,involving multiple subtypes of cervical spondylosis and diversified intervention measures.But there are problems such as significant regional differences,uneven methodological quality,and poor data sharing,which should be improved.
4.Summary of best evidence for discharge preparation services in patients with severe acute pancreatitis
Chi ZHANG ; Baiqiang LI ; Fangzheng JIANG ; Xu HU ; Xiangling ZHOU ; Xinhua XIE ; Fang WANG
Chinese Journal of Pancreatology 2025;25(4):282-288
Objective:To synthesize evidence regarding discharge preparation services for patients with severe acute pancreatitis (SAP) .Methods:Systematic search of relevant domestic and international websites and databases for diverse evidence concerning discharge preparation in SAP patients were conducted. Literature quality of the included studies was evaluated, and related evidence was extracted and graded.Results:Based on the researchers' evaluation and synthesis, 25 pieces of evidence related to discharge preparation services for patients with SAP were identified and summarized. These were categorized into five key areas: comprehensive assessment, care planning, multidimensional interventions, post-discharge follow-up, and ongoing evaluation. Among them, the evidence with stronger recommendation levels included multidisciplinary team assessment within 24 hours of admission, the assignment of dedicated personnel to coordinate, monitoring the discharge plan and continuous evaluation of the effectiveness of discharge preparation services.Conclusions:This study summarizes the best evidence available regarding discharge preparation services for SAP patients. It may provide an evidence-based foundation for nursing staff to standardize clinical practice and to further develop discharge preparation programs.
5.Research progress on early screening of diabetes after acute pancreatitis
Li DU ; Jiahui DONG ; Baiqiang LI ; Fangzheng JIANG ; Chi ZHANG ; Ruixin BAI ; Fang WANG ; Weiqin LI
Chinese Journal of Hepatobiliary Surgery 2025;31(11):876-880
Post-acute pancreatitis diabetes mellitus (PPDM-A) is a common type of exocrine pancreatic diabetes. It is very important to clarify the risk factors of PPDM-A and effectively screen for diabetes in patients with acute pancreatitis to prevent the occurrence and development of PPDM-A. This article elaborates on the three aspects of PPDM-A, including high-risk population, screening timing and methods, as well as PPDM-A screening in children and adolescents, aiming to provide a basis for early detection of PPDM-A and timely targeted treatment for patients.
6.Summary of best evidence for discharge preparation services in patients with severe acute pancreatitis
Chi ZHANG ; Baiqiang LI ; Fangzheng JIANG ; Xu HU ; Xiangling ZHOU ; Xinhua XIE ; Fang WANG
Chinese Journal of Pancreatology 2025;25(4):282-288
Objective:To synthesize evidence regarding discharge preparation services for patients with severe acute pancreatitis (SAP) .Methods:Systematic search of relevant domestic and international websites and databases for diverse evidence concerning discharge preparation in SAP patients were conducted. Literature quality of the included studies was evaluated, and related evidence was extracted and graded.Results:Based on the researchers' evaluation and synthesis, 25 pieces of evidence related to discharge preparation services for patients with SAP were identified and summarized. These were categorized into five key areas: comprehensive assessment, care planning, multidimensional interventions, post-discharge follow-up, and ongoing evaluation. Among them, the evidence with stronger recommendation levels included multidisciplinary team assessment within 24 hours of admission, the assignment of dedicated personnel to coordinate, monitoring the discharge plan and continuous evaluation of the effectiveness of discharge preparation services.Conclusions:This study summarizes the best evidence available regarding discharge preparation services for SAP patients. It may provide an evidence-based foundation for nursing staff to standardize clinical practice and to further develop discharge preparation programs.
7.Analysis on Clinical Trial Registration Status of TCM for the Treatment of Cervical Spondylosis
Zibo GAO ; Kai CHEN ; Fangzheng LIN ; Yongjin LI ; Dingkun LIN
Chinese Journal of Information on Traditional Chinese Medicine 2025;32(12):53-59
Objective To analyze the current status and development trends of registered clinical trials of TCM for the treatment of cervical spondylosis;To provide references for relevant trials.Methods Clinical trials of TCM for the treatment of cervical spondylosis registered in Chinese Clinical Trial Registry(ChiCTR),International Traditional Medicine Clinical Trial Registry(ITMCTR),and ClinicalTrials.gov from the establishment of the databases to December 31,2024 were retrieved,and the registration characteristic information of the included trials was analyzed.Results A total of 168 registered trials involving 32 665 subjects were included.The number of registered TCM clinical trials for cervical spondylosis showed an overall upward trend;the average implementation cycle of the studies was(20.1±10.7)months;the regions where the research sponsoring institutions were located were mainly in Shanghai,Beijing,and Guangdong;the funding sources were mostly from government finance and institutional funds;a total of 133 studies underwent ethical review;the main study type was interventional research,and the main study design was randomized parallel-controlled trials;the intervention measures were mainly acupuncture,manual therapy,and Chinese materia medica;the main outcome indicators were scale scores;17 studies met the requirements for data sharing and management plans.Conclusion The number of registered TCM clinical trials for cervical spondylosis is generally increasing,involving multiple subtypes of cervical spondylosis and diversified intervention measures.But there are problems such as significant regional differences,uneven methodological quality,and poor data sharing,which should be improved.
8.International experience and enlightenment of patient engagement in drug regulation
Jingjing WU ; Kaixin ZENG ; Yufei YANG ; Mengyan TIAN ; Fangzheng DONG ; Yimeng ZHANG ; Jun LI ; Ningying MAO
China Pharmacy 2025;36(8):908-913
OBJECTIVE To provide suggestions for improving the path and system construction of patient engagement in drug regulation in China.METHODS By reviewing initiatives and experiences from the United States(U.S.),European Union(EU),and Japan in promoting patient engagement,this study summarizes the roles and contributions of patients in the entire drug regulatory process internationally.Combining China's current progress and challenges in patient engagement,specific proposals are formulated to refine regulatory pathways and institutional systems.RESULTS&CONCLUSIONS With growing global emphasis on patient engagement as a regulatory strategy,countries or regions such as the U.S.,EU,and Japan have established clear policies,designated oversight agencies,and developed diversified pathways for patient engagement.Patients contribute to regulatory processes through advisory meetings,direct decision-making roles,and leveraging lived experiences and expertise to optimize drug evaluation and monitoring.In contrast,China's patient engagement remains primarily limited to clinical value-oriented drug development,lacking formal policy guidance.It is recommended that China,based on its existing policy system,further strengthen the construction of a safeguard system for patient engagement,improve the capacity building and pathway models for patient participation in pharmaceutical regulation,and promote the continuous development of patient engagement in pharmaceutical regulation in our country.
9.Nodule candidate detection algorithm based on deep learning
Caidi ZHANG ; Yueyang LI ; Fangzheng CUI ; Haichi LUO ; Zhongxuan GU
Chinese Journal of Medical Physics 2024;41(9):1177-1184
A nodule candidate detection algorithm based on 3DSCANet utilizing deep learning techniques is proposed to improve nodule candidate detection performance.The algorithm employs a strengthen coordinate attention(SCA)module which improves upon the basic coordinate attention mechanism to enable it to extract three-dimensional(3D)features,and incorporates adaptive convolution to extract cross-channel features,thereby enhancing the feature extraction capability of the SCA mechanism.Additionally,a method to convert 3D rectangular anchor boxes into 3D spheres is proposed,along with the introduction of a sphere based intersection over union loss function(SIoUX)to fully leverage the morphological characteristics of lung nodules which are spherical in shape.During the experimental phase,the method is tested on the LUNA16 dataset using ten-fold cross-validation,and it achieves an average recall rate of 0.94.
10.Lung nodule classification algorithm based on multi-dimensional fusion
Hongqun DU ; Yueyang LI ; Fangzheng CUI ; Haichi LUO ; Zhongxuan GU
Chinese Journal of Medical Physics 2024;41(11):1428-1436
A novel algorithm based on multi-dimensional fusion is proposed for classifying lung nodules.Based on the algorithm for reducing false positives of pulmonary nodules,the optimization is carried out by introducing a high-level feature enhancement soft activation mapping module after obtaining features by the multi-scale feature fusion module to improve the classification ability.To address the imbalance of different nodule data in the actual classification,a balanced mean square error loss is adopted to improve the training effect of the model.A three-dimensional and two-dimensional model fusion method is used to further improve the classification performance.The experiment conducted on a Private Lung dataset proves that the proposed model has a classification accuracy of 93.8%,outperforming the existing methods.

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