1.Chemical consitituents and hypoglycemic activity of Qinhuai No. 1 Rehmannia glutinosa
Meng YANG ; Zhi-you HAO ; Xiao-lan WANG ; Chao-yuan XIAO ; Jun-yang ZHANG ; Shi-qi ZHOU ; Xiao-ke ZHENG ; Wei-sheng FENG
Acta Pharmaceutica Sinica 2025;60(1):205-210
Eight compounds were isolated and purified from the ethyl acetate part of 70% acetone extract of
2.Discovery and investigation of six polio vaccine derived viruses in Guangzhou City
Min CUI ; Chunhuan ZHANG ; Wei ZHANG ; Jun LIU ; Jialing LI ; Jianxiong XU ; Wenji WANG ; Qing HE ; Lihong NI ; Xuexia YUN ; Huanying ZHENG
Journal of Public Health and Preventive Medicine 2025;36(2):22-25
Objective To understand the surveillance situation of poliovirus in Guangzhou from 2011 to 2024, and to further strengthen polio surveillance and ensure the continued maintenance of a polio-free status. Methods An analysis was conducted on the discovery and investigation results of six cases of vaccine-derived poliovirus (VDPV) detected in Guangzhou. Results A total of 6 VDPV incidents were reported in Guangzhou from 2011 to June 2024, among which 5 incidents were from sewage sample testing in the Liede Sewage Treatment Plant in Guangzhou, all of which were confirmed as VDPV, with 1 for type I, 1 for type II, and 3 for type III. In addition, one confirmed HFMD case was identified as a type VDPV II carrier. No presence of any wild poliovirus (WPV), VDPV cases, or circulating VDPV (cVDPV) was reported. Conclusion Guangzhou City has maintained a high level of vigilance and effectiveness in the monitoring and prevention of polio. Continuously strengthening the construction of the polio monitoring network, optimizing vaccination strategies, and comprehensively improving public health awareness are still the focus of the prevention and control work in the future.
3.Quality evaluation of Jingtian granule based on fingerprint combined with chemical pattern recognition
Wei ZHAO ; Shuhe CHEN ; Bin YAN ; Qiongfang ZHENG ; Weixin ZHANG ; Yuanming BA
China Pharmacy 2025;36(3):300-305
OBJECTIVE To establish the ultra-high performance liquid chromatography (UPLC) fingerprint of Jingtian granule, and to evaluate its quality by chemical pattern recognition. METHODS Luna® Omega Polar C18 column (150 mm×2.1 mm, 1.6 μm) was used as the chromatographic column, and acetonitrile-0.2% phosphoric acid solution was used as the mobile phase for gradient elution. The flow rate was 0.2 mL/min, the column temperature was 30 ℃, and the detection wavelength was 265 nm. With peak 16 as the reference peak, the UPLC fingerprint of Jingtian granule was established by the Similarity Evaluation System of Chromatographic Fingerprint of Traditional Chinese Medicine (2012 edition). The common peaks were identified, the similarity evaluation was carried out, and the ownership of each common peak was confirmed. Hierarchical cluster analysis (HCA) and principal component analysis (PCA) in chemical pattern recognition methods were used to classify 13 batches of samples (S1- S13), and orthogonal partial least squares-discriminant analysis (OPLS-DA) was used to identify the key components of the differences between different batches of samples. RESULTS RSDs of precision, repeatability and stability of the UPLC method were not more than 4.4%. A total of 25 common peaks were identified in the fingerprints of 13 batches of Jingtian granules. By comparing with the reference substance fingerprint, 10 common peaks were identified, namely peak 3 (hydroxymethyl-2-furaldehyde), peak 5 (salidroside), peak 8(chlorogenic acid), peak 15 (cinnamic acid), peak 19 (aloe-emodin), peak 20 (ammonium glycyrrhizinate), peak 21 (rhein), peak 23 (emodin), peak 24 (glycyrrhetinic acid), peak 25 (chrysophanol). The similarities of fingerprints of 13 batches of samples were 0.955-0.996. The results of HCA showed that 13 batches of samples could be divided into three categories, among which samples S1, S5, S7, S11-S13 were clustered in one category, S4 and S6 were clustered in one category, S2, S3 and S8-S10 were clustered in one category. PCA results showed that the cumulative variance contribution rate of principal components 1-7 was 92.666%. OPLS-DA further identified 13 differential components, which were mainly derived from Polygonati Rhizoma with wine steaming, Rhodiolae Crenulatae Radix Et Rhizoma, prepared Rhei Radix Et Rhizoma and Glycyrrhizae Radix Et Rhizome Praeparata Cum Melle. CONCLUSIONS The established UPLC fingerprint of Jingtian granule is simple, stable and reproducible. Combined with the chemical pattern recognition method, it can effectively reveal the overall quality difference between different batches of Jingtian granule. The quality of Polygonati Rhizoma with wine steaming, Rhodiolae Crenulatae Radix Et Rhizoma, prepared Rhei Radix Et Rhizoma, Dioscoreae Nipponicae Rhizoma, Polyporus, Cinnamomi Ramulus, Glycyrrhizae Radix Et Rhizome Praeparata Cum Melle is the key to the overall quality of Jingtian granule.
4.Investigation on the current status of pharmaceutical care in medical institutions in China
Tingting ZHENG ; Yuqing ZHANG ; Sitong LIU ; Wei ZHANG ; Jin LU ; Qunhong SHEN ; Jiancun ZHEN
China Pharmacy 2025;36(9):1117-1122
OBJECTIVE To investigate the current status of pharmaceutical care in medical institutions in China, and provide experience and suggestions for better development of pharmaceutical care. METHODS Questionnaire survey was used to investigate the development of pharmaceutical care in medical institutions in 31 provinces (autonomous regions and municipalities directly) in March 2023, and descriptive analysis and binary logistic regression analysis on the influencing factors of pharmaceutical care were conducted. RESULTS A total of 1 368 questionnaires were sent out, and 1 304 valid questionnaires were collected with the effective recovery rate of 95.32%. Pharmaceutical care was carried out in 671 medical institutions (51.46%), and the rates of pharmaceutical care in tertiary, secondary, primary and other medical institutions were 74.79%, 27.97% and 7.35%, respectively. The average number of patients receiving pharmaceutical care was 2 638.96 per year, and there were 8.33 pharmacists in each medical institution to carry out pharmaceutical care, among which 93.68% were clinical pharmacists. The main departments covered by pharmaceutical care services included respiratory and critical care medicine, cardiology, intensive care unit, endocrinology, oncology, gastroenterology, obstetrics and gynecology and other departments. There were only 48 medical institutions (7.15%) with additional compensation for pharmaceutical care services. The main experiences of developing pharmaceutical care were to pay attention to talent cultivation and discipline construction, but the main difficulties were serious shortage of staff and qualified talents, low compensation level and low enthusiasm. Grade of medical institutions, the number of pharmacists engaged in clinical pharmacy, the number of qualified clinical pharmacists and the degree of information in the pharmacy department were the main influencing factors for carrying out pharmaceutical care (P<0.05). CONCLUSIONS In recent years, pharmaceutical care in Chinese medical institutions has made certain progress, while that of primary medical institutions, secondary medical institutions and other medical institutions should be improved. In the future, it is still necessary to further enhance the implementation of pharmaceutical care, promote personnel training, and attach importance to demonstrating the value of pharmaceutical care, thereby promoting the sustainable and high- quality development of pharmaceutical care.
5.Performance comparison of domestic and imported CD3/CD28 activation beads for CAR-T cell manufacturing
WEI Xianzheng1,2,3 ; ZHANG Shuyu1,2,3 ; JIN Yuhang1,2,3 ; WANG Pu1,2,3, ; WANG Xu1,2,3 ; ZHENG Junnian2,3 ; LIU Dan1,2,3 ; SHI Ming1,2,3
Chinese Journal of Cancer Biotherapy 2025;32(5):492-497
[摘 要] 目的:比较国产与进口CD3/CD28激活磁珠制备的CAR-T细胞的性能差异,为国内CAR-T细胞研发和生产提供备用或替代方案。方法:以进口CD3/CD28激活磁珠︰CD3+ T细胞比例为1∶1的成熟方案作为研究对照,国产磁珠设置1∶2、1∶1和2∶1的比例梯度激活T细胞,T细胞激活72 h后使用CAR慢病毒感染制备CAR-T细胞。分别在慢病毒感染后的第2、4、7天计数,监测CAR-T细胞增殖情况;感染5 d后采用流式细胞术检测CAR-T细胞阳性率;感染8 d后采用流式细胞术检测CAR-T细胞的CD4/CD8分型情况和PD1+ TIM3+耗竭细胞比例。结果:国产CD3/CD28激活磁珠与进口磁珠制备的CAR-T细胞CD4/CD8分型相似,CAR-T细胞阳性率略低于进口磁珠(53.7% vs 57.9%),但CAR-T细胞扩增较进口磁珠增加1倍左右,耗竭水平仅为进口磁珠的一半(4.21% vs 7.91%)。此外,国产磁珠的使用量低于进口磁珠,有利于降低CAR-T细胞研发和生产成本。结论:国产CD3/CD28激活磁珠用于制备CAR-T细胞总体性能不劣于进口磁珠,有潜力作为进口磁珠的备用或替代方案。
6.Mechanism of Aerobic Exercise in Delaying Brain Aging in Aging Mice by Regulating Tryptophan Metabolism
De-Man ZHANG ; Chang-Ling WEI ; Yuan-Ting ZHANG ; Yu JIN ; Xiao-Han HUANG ; Min-Yan ZHENG ; Xue LI
Progress in Biochemistry and Biophysics 2025;52(6):1362-1372
ObjectiveTo explore the molecular mechanism of aerobic exercise to improve hippocampal neuronal degeneration by regulating tryptophan metabolic pathway. Methods60 SPF-grade C57BL/6J male mice were divided into a young group (2 months old, n=30) and a senile group (12 months old, n=30), and each group was further divided into a control group (C/A group, n=15) and an exercise group (CE/AE group, n=15). An aerobic exercise program was used for 8 weeks. Learning memory ability was assessed by Y-maze, and anxiety-depression-like behavior was detected by absent field experiment. Hippocampal Trp levels were measured by GC-MS. Nissl staining was used to observe the number and morphology of hippocampal neurons, and electron microscopy was used to detect synaptic ultrastructure. ELISA was used to detect the levels of hippocampal Trp,5-HT, Kyn, KATs, KYNA, KMO, and QUIN; Western blot was used to analyze the activities of TPH2, IDO1, and TDO enzymes. ResultsGroup A mice showed significant decrease in learning and memory ability (P<0.05) and increase in anxiety and depressive behaviors (P<0.05); all of AE group showed significant improvement (P<0.05). Hippocampal Trp levels decreased in group A (P<0.05) and increased in AE group (P<0.05). Nidus vesicles were reduced and synaptic structures were degraded in group A (P<0.05), and both were significantly improved in group AE (P<0.05). The levels of Trp, 5-HT, KATs, and KYNA were decreased (P<0.05) and the levels of Kyn, KMO, and QUIN were increased (P<0.05) in group A. The activity of TPH2 was decreased (P<0.05), and the activities of IDO1 and TDO were increased (P<0.05). The AE group showed the opposite trend. ConclusionThe aging process significantly reduces the learning memory ability and increases the anxiety-depression-like behavior of mice, and leads to the reduction of the number of nidus vesicles and degenerative changes of synaptic structure in the hippocampus, whereas aerobic exercise not only effectively enhances the spatial learning memory ability and alleviates the anxiety-depression-like behavior of aging mice, but also improves the morphology and structure of neurons in hippocampal area, which may be achieved by the mechanism of regulating the tryptophan metabolic pathway.
7.Effects of Cldn14 gene knockout on the formation of calcium oxalate stones in rats and its mechanism
Peiyue LUO ; Liying ZHENG ; Tao CHEN ; Jun ZOU ; Wei LI ; Qi CHEN ; Le CHENG ; Lifeng GAN ; Fangtao ZHANG ; Biao QIAN
Journal of Modern Urology 2025;30(2):168-173
Objective: To explore the effects of Cldn14 gene knockout on renal metabolism and stone formation in rats,so as to provide reference for research in the field of urinary calium metabolism and stone formation. Methods: Cldn14 gene knockout homozygous rats and wild-type rats of the same age were randomly divided into 4 groups:wild-type control (WC) group,wild-type ethylene glycol (WE) group,gene knockout control (KC) group and gene knockout ethylene glycol (KE) group,with 10 rats in each group.The WE and KE groups were induced with ethylene glycol + ammonium chloride to form kidney stones,while the WC and KC groups received normal saline gavage.After 4 weeks of standard maintenance feeding,the urine samples were collected to detect the venous blood.The kidneys were collected for HE,Pizzolatto's staining and transmission electron microscopy.The protein in renal tissues was extracted to detect the expressions of Claudin16 and Claudin19. Results: Crystal deposition was observed in the renal tubular lumen of the WE and the KE groups,and more crystals were detected in the KE group.The WE group had a large number of intracytoplasmic black crystalline inclusions observed in renal tubular epithelial cells under transmission electron microscope,followed by the KE and KC groups.Compared with WC and WE groups,KC and KE groups had significantly decreased serum calcium and magnesium levels but significantly increased urinary calcium level.In addition,the urinary calcium level was higher in the WE group than in the WC group and higher in the KE group than in the KC group.The KE group had lower level of Claudin16,but there was no significant difference in the level of Claudin19 among the 4 groups(P>0.05). Conclusion: Knockout of Cldn14 gene alone cannot effectively reduce urinary calcium excretion or reduce the risk of stone formation in rats,which may be related to the decrease of Claudin16 level.
8.Exploration and Reflection on the Construction of Pre-admission Processes in Public Hospitals
Guojie ZHANG ; Hongmei ZHANG ; Qinghua BAI ; Liluan YOU ; Wei ZHANG ; Xueqin SUN ; Jinjin GAO ; Zheng CHEN ; Weiguo ZHU ; Qing CHANG
Medical Journal of Peking Union Medical College Hospital 2025;16(5):1185-1192
Pre-admission is a critical initiative to optimize medical service processes and alleviate the challenge of "difficult access to healthcare. "However, there is currently a lack of standardized protocols for pre-admission procedures. This study aims to systematically analyze key nodes and risk factors in pre-admission process design and propose optimization strategies, providing a foundation for policy formulation and hospital practices. By constructing a "forward-reverse" dual-process model of pre-admission and identifying risk points based on stakeholder theory (patients, hospitals, healthcare administration, and insurance), the study reveals that while pre-admission can reduce the average length of stay, improve bed turnover rates, and enhance patient satisfaction, it also presents risks such as cross-period financial settlement, challenges in insurance policy adaptability, demands for information system integration, and the need for defining medical safety boundaries. To optimize the pre-admission process and mitigate these risks, this study explores framework improvements in areas including eligibility criteria, mode selection, cost settlement, transition between pre-admission and inpatient status, and cancellation of pre-admission, offering practical guidance for public hospitals. The authors argue that pre-admission requires tripartite collaboration among hospitals, insurers, and healthcare administrations: hospitals should establish top-level design, continuously refine processes, and implement dynamic risk assessment mechanisms; insurance providers should support cross-period settlement policies; and healthcare administrations should issue guiding policies or standardized protocols. Through multi-department coordination and collaborative efforts, the optimization and innovation of pre-admission processes can be advanced, ultimately delivering more efficient and convenient healthcare experiences for patients.
9.Expert consensus on the positioning of the "Three-in-One" Registration and Evaluation Evidence System and the value of orientation of the "personal experience"
Qi WANG ; Yongyan WANG ; Wei XIAO ; Jinzhou TIAN ; Shilin CHEN ; Liguo ZHU ; Guangrong SUN ; Daning ZHANG ; Daihan ZHOU ; Guoqiang MEI ; Baofan SHEN ; Qingguo WANG ; Xixing WANG ; Zheng NAN ; Mingxiang HAN ; Yue GAO ; Xiaohe XIAO ; Xiaobo SUN ; Kaiwen HU ; Liqun JIA ; Li FENG ; Chengyu WU ; Xia DING
Journal of Beijing University of Traditional Chinese Medicine 2025;48(4):445-450
Traditional Chinese Medicine (TCM), as a treasure of the Chinese nation, plays a significant role in maintaining public health. In 2019, the Central Committee of the Communist Party of China and the State Council proposed for the first time the establishment of a TCM registration and evaluation evidence system that integrates TCM theory, "personal experience" and clinical trials (referred to as the "Three-in-One" System) to promote the inheritance and innovation of TCM. Subsequently, the National Medical Products Administration issued several guiding principles to advance the improvement and implementation of this system. Owing to the complexity of its implementation, there are still differing understandings within the TCM industry regarding the positioning of the "Three-in-One" Registration and Evaluation Evidence System, as well as the connotation and value orientation of the "personal experience." To address this, Academician WANG Qi, President of the TCM Association, China International Exchange and Promotion Association for Medical and Healthcare and TCM master, led a group of academicians, TCM masters, TCM pharmacology experts and clinical TCM experts to convene a "Seminar on Promoting the Implementation of the ′Three-in-One′ Registration and Evaluation Evidence System for Chinese Medicinals." Through extensive discussions, an expert consensus was formed, clarifying the different roles of the TCM theory, "personal experience" and clinical trials within the system. It was further emphasized that the "personal experience" is the core of this system, and its data should be derived from clinical practice scenarios. In the future, the improvement of this system will require collaborative efforts across multiple fields to promote the high-quality development of the Chinese medicinal industry.
10.Transfer learning enhanced graph neural network for aldehyde oxidase metabolism prediction and its experimental application.
Jiacheng XIONG ; Rongrong CUI ; Zhaojun LI ; Wei ZHANG ; Runze ZHANG ; Zunyun FU ; Xiaohong LIU ; Zhenghao LI ; Kaixian CHEN ; Mingyue ZHENG
Acta Pharmaceutica Sinica B 2024;14(2):623-634
Aldehyde oxidase (AOX) is a molybdoenzyme that is primarily expressed in the liver and is involved in the metabolism of drugs and other xenobiotics. AOX-mediated metabolism can result in unexpected outcomes, such as the production of toxic metabolites and high metabolic clearance, which can lead to the clinical failure of novel therapeutic agents. Computational models can assist medicinal chemists in rapidly evaluating the AOX metabolic risk of compounds during the early phases of drug discovery and provide valuable clues for manipulating AOX-mediated metabolism liability. In this study, we developed a novel graph neural network called AOMP for predicting AOX-mediated metabolism. AOMP integrated the tasks of metabolic substrate/non-substrate classification and metabolic site prediction, while utilizing transfer learning from 13C nuclear magnetic resonance data to enhance its performance on both tasks. AOMP significantly outperformed the benchmark methods in both cross-validation and external testing. Using AOMP, we systematically assessed the AOX-mediated metabolism of common fragments in kinase inhibitors and successfully identified four new scaffolds with AOX metabolism liability, which were validated through in vitro experiments. Furthermore, for the convenience of the community, we established the first online service for AOX metabolism prediction based on AOMP, which is freely available at https://aomp.alphama.com.cn.


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