1.Quality control of Sagina japonica by HPLC fingerprint combined with quantitative analysis of multi-components by single-marker
Junhong LIU ; Xue LI ; Meiqin ZHANG ; Han HU ; Chunmei BAI ; Chunhua LIU ; Yongjun LI
China Pharmacy 2026;37(7):883-888
OBJECTIVE To establish the high-performance liquid chromatography (HPLC) fingerprint of Sagina japonica , and to establish a quantitative analysis of multi-components by single-marker (QAMS) method for simultaneous determination of six componen ts in S. japonica , aiming to provide references for the quality control of this medicinal herb. METHODS HPLC method was used to establish the fingerprints of 12 batches (No. S1-S12) of S . japonica according to Similarity Evaluation System of Chromatographic Fingerprint of Traditional Chinese Medicine . The similarity evaluation and identification of common peaks were conducted, followed by cluster analysis (CA) and principal component analysis (PCA) for 12 batches of samples. Using vicenin-2 as internal reference, the contents of p-hydroxy cinnamic acid, apigenin-6-C-arabinoside-8-C-glucoside, isoorientin, vitexin and 20-hydroxyecdysone were determined by QAMS method. The results were then compared with those obtained by the external standard method. RESULTS The similarities of HPLC fingerprints for 12 batches of S . japonica ranged from 0.828-0.998. A total of 17 common peaks were calibrated, and 6 common peaks were identified. Specifically, peak 5 was identified as vicenin-2, peak 7 as p-hydroxycinnamic acid, peak 10 as apigenin-6-C-arabinoside-8-C-glucoside, peak 11 as isoorientin, peak 13 as vitexin, and peak 15 as 20-hydroxyecdysone. The results of CA showed that S1-S5, S7 and S9-S11 were clustered into one category, S6 was clustered into one category, and S8 and S12 were clustered into one category. The results of PCA revealed that the accumulative contribution rate of the four main components was 89.430%. The content ranges measured by QAMS method for p-hydroxy cinnamic acid, apigenin-6-C-arabinoside-8-C-glucoside, isoorientin, vitexin and 20-hydroxyecdysone were 0.017 4-0.269 4, 0.568 8-4.240 3, 0.503 2-5.040 3, 0.024 0-0.132 0 and 2.551 3-4.881 1 mg/g, respectively. There was no significant difference in the contents of components measured between QAMS method and the external standard method ( P >0.05). CONCLUSIONS The established HPLC fingerprint and QAMS method can be used for quality evaluation and quality control of S . japonica.
2.Research advances in autoimmune pancreatitis with pancreatic exocrine insufficiency
Xiang AO ; Chenxiao LIU ; Xianda ZHANG ; Taojing RAN ; Chunhua ZHOU ; Duowu ZOU
Journal of Clinical Hepatology 2025;41(2):395-400
Autoimmune pancreatitis is a special type of chronic pancreatitis that can lead to abnormal pancreatic exocrine function in patients. Autoimmune pancreatitis comorbid with pancreatic exocrine insufficiency has a complex pathogenesis, and there is limited research on this topic, leading to the lack of understanding of such patients in clinical practice. This article introduces the epidemiology of autoimmune pancreatitis, briefly describes the pathogenesis of pancreatic exocrine insufficiency caused by autoimmune pancreatitis, and summarizes the various detection methods for pancreatic exocrine function, nutritional assessments, lifestyle management, and drug therapy, in order to strengthen the understanding of autoimmune pancreatitis comorbid with pancreatic exocrine insufficiency and improve the clinical diagnosis and treatment of pancreatic exocrine insufficiency.
3.Interleukin-6 and Irritable Bowel Syndrome: Mechanisms and Research Advances
Li LIU ; Chunhua ZHAO ; Han MIN
Medical Journal of Peking Union Medical College Hospital 2025;16(2):431-438
Irritable bowel syndrome (IBS) is an extremely common chronic intestinal disorder characterized by recurrent abdominal pain and altered bowel habits, significantly impacting patients' quality of life. The etiology of IBS remains incompletely understood. Research has identified low-grade intestinal inflammation and immune activation, primarily manifested as an imbalance between pro-inflammatory and anti-inflammatory cytokines, as key pathogenic mechanisms in IBS. Among these, interleukin-6 (IL-6), a core pro-inflammatory cytokine, is significantly elevated in IBS patients. IL-6 contributes to the pathogenesis of IBS through various mechanisms, including altering individual susceptibility to IBS, promoting gastrointestinal motility and secretion, activating the hypothalamic-pituitary-adrenal axis, inducing visceral hypersensitivity, and impairing intestinal mucosal barrier function. Furthermore, IL-6 levels are closely associated with the severity of IBS symptoms. This review summarizes the role and mechanisms of IL-6 in IBS, aiming to provide insights and references for clinicians and researchers investigating the etiology of IBS.
4.Research progress of Faricimab in the treatment of macular edema associated with retinal vascular diseases
Xinyi HOU ; Haoran WANG ; Chunhua DAI ; Jing ZHANG ; Meng XIN ; Zhixin GUAN ; Shu LIU
International Eye Science 2025;25(8):1267-1273
Intravitreal injection of anti-vascular endothelial growth factor(VEGF)agents has become the primary treatment for macular edema associated with retinal vascular disease such as diabetic retinopathy and retinal vein occlusion, but there are limitations such as variable treatment efficacy and insufficient durability of therapeutic effects. As the first bispecific antibody applied in ophthalmic treatment, Faricimab achieves favorable outcomes by simultaneously targeting both VEGF-A and angiopoietin-2(Ang-2)pathways. Based on evidence from recent clinical trials and real-world studies, this article reviews the research progress on Faricimab for the treatment of diabetic macular edema(DME), retinal vein occlusion-associated macular edema(RVO-ME)and refractory macular edema compared to the therapeutic effects of other agents. Additionally, based on Faricimab's safety characteristics and future potential, its therapeutic prospects for macular edema associated with retinal vascular diseases are discussed. This review aims to provide evidence-based references for optimizing clinical treatment strategies, thereby contributing to mitigating the risk of vision loss due to macular edema.
5.Development and validation of a prediction score for subtype diagnosis of primary aldosteronism.
Ping LIU ; Wei ZHANG ; Jiao WANG ; Hongfei JI ; Haibin WANG ; Lin ZHAO ; Jinbo HU ; Hang SHEN ; Yi LI ; Chunhua SONG ; Feng GUO ; Xiaojun MA ; Qingzhu WANG ; Zhankui JIA ; Xuepei ZHANG ; Mingwei SHAO ; Yi SONG ; Xunjie FAN ; Yuanyuan LUO ; Fangyi WEI ; Xiaotong WANG ; Yanyan ZHAO ; Guijun QIN
Chinese Medical Journal 2025;138(23):3206-3208
6.Expert Consensus on Perioperative Nursing Care for Follicular Unit Extraction(2025)
Chunhua ZHANG ; Weiwei BIAN ; Congmin WANG ; Lin SHEN ; Yong MIAO ; Na LIU ; Shan JIA ; Junhong AN ; Hongxia WANG ; Dongmei ZHANG
Medical Journal of Peking Union Medical College Hospital 2025;16(6):1606-1613
To promote the standardization and normalization of perioperative care for follicular unit extraction(FUE) hair transplantation, ensure treatment efficacy, and align with advancements in the specialty, the Nursing Branch of the Chinese Association of Plastic and Aesthetics organized a panel of domestic experts. By integrating evidence-based medicine with clinical practice experience, and following thorough discussions, these experts developed the Clinical Practice
7.Predictive performance of CT images-based 3D ResNet18 model for identifying lung tuberculosis drug resistance
Chunhua LI ; Xueyan LIU ; Jiaofeng ZHENG ; Xiangxin ZENG ; Yurui LI ; Wenwen LIU ; Shengxiu LYU
Journal of Army Medical University 2025;47(14):1676-1684
Objective To develop and validate a deep learning model based on chest CT images to accurately distinguish between drug-resistant(DR-TB)and-sensitive tuberculosis(DS-TB).Methods A retrospective study was conducted on 722 cases of confirmed secondary tuberculosis admitted in our center from January 2019 to December 2022.According to the results of antimicrobial susceptibility test,they were divided into 357 DS-TB cases and 365 DR-TB cases.Pre-existing U-Net segmentation model was employed to segment the lung parenchyma regions in CT images.The dataset was randomly partitioned into a training set and a testing set in an 8:2 ratio.Six 3D deep learning architectures(3D Swin Transformer,3D ShuffleNet v2,3D ViT,3D MobileNet v2,3D DenseNet,and 3D ResNet18)were employed to evaluate the discriminative efficiency between DS-TB and DR-TB.Hyperparameters were optimized by five-fold cross-validation on the training set to construct the optimal model.The performance of the constructed model was assessed using area under the curve(AUC),sensitivity,specificity,positive predictive value(PPV),negative predictive value(NPV),and F1-score.Six radiologists independently evaluated DR-TB identification on the test set,and their performance was compared with the best-performing deep learning model.Results The AUC value in DR-TB prediction was 0.583,0.704,0.698,0.758,0.736,and 0.841,respectively,for 3D Swin Transformer,3D ShuffleNet v2,3D ViT,3D MobileNet v2,3D DenseNet,and 3D ResNet18.The 3D ResNet18 model demonstrated optimal performance,achieving a sensitivity of 0.935(95%CI:0.880~0.987),a specificity of 0.642(95%CI:0.492~0.757),a PPV of 0.750(95%CI:0.663~0.835),an NPV of 0.896(95%CI:0.809~0.976),an AUC value of 0.841,and a F1-score of 0.832.The radiologists got a F1-score of 0.571,0.450,0.675,0.623,0.617 and 0.635,respectively,and the F1-score of the 3D ResNet18 model is all higher than that of the radiologists.The highest-performing radiologist achieved sensitivity,specificity,PPV and NPV of 0.701(95%CI:0.605~0.802),0.567(95%CI:0.447~0.684),0.651(95%CI:0.549~0.757),and 0.623(95%CI:0.500~0.754),with all these values lower than those of the 3D ResNet18 model(P<0.05).Class activation mapping showed that the 3D ResNet18 model could focus on key lesion areas.The class activation mapping demonstrated that the 3D ResNet18 model could effectively focus on critical lesion regions.Conclusion Our 3D ResNet18 model shows the best predictive performance in identifying DR-TB,and is expected to assist clinical diagnosis for DR-TB.
8.Comparison of biological characteristics of natural killer cells from different sources
Junxia WANG ; Zaidong XIE ; Chunlei PAN ; Feng WU ; Dingsheng LIU ; Jianrong ZHU ; Chunhua ZHAO
Basic & Clinical Medicine 2025;45(12):1668-1674
Natural killer cells(NK)are important innate immune cells that do not require prior antigen exposure and can directly recognize and attack virus-infected cells and tumor cells.The activation and effector functions of NK cells are regulated by a balance of signals delivered through their surface activating receptors and inhibitory re-ceptors,which bind to ligands on target cells to achieve cytotoxicity via"induced self"and"missing self"recogni-tion models.The killing mechanisms of NK cells primarily include release of cytotoxic granules such as perforin and granzymes to induce target cell lysis,death receptor-mediated apoptosis,secretion of various cytokines,chemokines and growth factors to coordinate with other immune cells in killing tumor cells,thereby generating secondary im-mune responses and antibody-dependent cellular cytotoxicity(ADCC).
9.Analysis of Surgical Treatment Outcomes in 709 Cases of Infective Endocarditis
Chaoji ZHANG ; Zining WU ; Xingrong LIU ; Guotao MA ; Shangdong XU ; Jianzhou LIU ; Sheng YANG ; Yanxue ZHAO ; Xinpei LIU ; Xiaocui WANG ; Xiaojun MA ; Ligang FANG ; Chunhua YU ; Huaiwu HE ; Qi MIAO ; Jun ZHENG
Medical Journal of Peking Union Medical College Hospital 2025;17(1):197-203
To review the clinical characteristics, short-term outcomes, and risk factors of patients with infective endocarditis(IE) who underwent surgical treatment at a single center, and to summarize treatment experience. Consecutive patients diagnosed with IE who underwent cardiac surgery at the Department of Cardiac Surgery, Peking Union Medical College Hospital between May 2012 and June 2024 were enrolled. Statistical analyses were performed on their baseline characteristics, comorbidities, IE predisposing factors, surgical indications, pathogen distribution, surgical strategies, short-term outcomes, and associated risk factors. A total of 709 IE patients meeting the inclusion and exclusion criteria were included. IE involved left-sided valves in 85.3% of cases. The median age was 48(35, 58) years, and 68.0% were male. Prosthetic valve endocarditis accounted for 8.7%. Patients with left-sided IE had a higher prevalence of comorbidities. Streptococcus was the causative pathogen in 43.2% of patients, while right-sided IE was more frequently associated with Significant differences in pathogen distribution were observed between patients with left-sided and right-sided IE. Heart failure was identified as an independent risk factor for both perioperative mortality and adverse outcomes in surgically treated patients. Through strict timing of surgical intervention and optimized perioperative management, surgical treatment may effectively reduce mortality and improve prognosis in patients with IE.
10.Combining balloon catheter expansion with swallowing training can better improve the swallowing of tracheotomy patients after pontine hemorrhage
Fangzhen CAO ; Min LIU ; Chunhua ZHANG ; Wei LU ; Shanshan WANG ; Chuan HU ; Xin WANG
Chinese Journal of Physical Medicine and Rehabilitation 2024;46(1):13-16
Objective:To observe any effect of supplementing basic swallowing training with balloon catheter dilation on the swallowing function of tracheostomy patients with pontine hemorrhage.Methods:A total of 40 pontine hemorrhage patients with tracheostomy and swallowing disorders were divided randomly into an observation group and a control group, each of 20. Both groups were given nutritional neurodrugs and basic swallowing training, but the observation group also received 25 minutes of balloon catheter dilation, five times a week for 6 weeks. Before and after the 6 weeks of treatment one swallowing therapist evaluated the feeding ability and leakage-aspiration status of each subject assigning functional oral intake (FOIS) ratings and Rosenbek Leakage/Aspiration Rating Scale (PAS) ratings double-blinded. The Watian water swallowing test was also applied.Results:After the treatment the average FOIS and PAS scores of both groups had improved significantly, with those of the observation group then significantly better than among the control group on average. The total treatment effectiveness rate was 70% in the observation group, significantly better than the 30% in the control group.Conclusion:Supplementing swallowing training with balloon catheter dilation can better improve the swallowing of patients recovering from a tracheotomy after pontine hemorrhage.

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