1.Construction and Application of A Digital System for "Disease-pulse-syndrome-treatment Differentiation" Paradigm
Tiantian FAN ; Ying LYU ; Ru NIU ; Xiaojie KANG ; Fenglan WANG
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(4):217-225
In the context of the digital-intelligent era of traditional Chinese medicine (TCM), the lack of clinical thinking is a pressing issue that limits the overall effectiveness of TCM and talent cultivation. The "disease-pulse-syndrome-treatment differentiation" thinking model, originally developed by ZHANG Zhongjing in the Treatise on Cold Damage and Miscellaneous Diseases (Shang Han Za Bing Lun), has served as a guideline and paradigm followed by generations of medical practitioners. This study aims to construct a digitalized "disease-pulse-syndrome-treatment differentiation" thinking system, develop a digital assessment system, and implement it for practical application. The goal is to recommend a digitalized assessment model for TCM and provide a reference for the integrated innovation of talent cultivation in medicine, education, and research. First, based on the complex diagnostic and treatment framework of the Treatise on Cold Damage Diseases (Shang Han Lun), the research team previously established a "process" + "result" thinking model that included four processes and ten steps. This study integrates knowledge unit theory and digital technology to create a digital system for "disease-pulse-syndrome-treatment differentiation" with a dual-control model of "process control" and "result control". The system consists of 46 items across three categories: knowledge body (W=20%), knowledge element (W=30%), and knowledge element associations (W=50%). Second, a mixed-methods research design was employed, combining qualitative and quantitative approaches. The Delphi method was used to establish hierarchical levels and screen items, while the analytic hierarchy process (AHP) was used to assign weights. Expert surveys were conducted to reach a consensus and further validate the rationale and necessity of the system. Finally, based on the system architecture and integrating key computer technologies, a digital assessment system for "disease-pulse-syndrome-treatment differentiation" was developed. The Treatise on Cold Damage Diseases (Shang Han Lun) was used as a case study to validate the system's feasibility. Statistical results showed that the difficulty level of the assessment question bank was moderate (DL ranging from 0.65 to 0.89), with good discrimination (D>0.4), and reasonable reliability and validity (Cronbach's α=0.84, KMO=0.72, Bartlett's test P<0.01). The system can perform process-oriented evaluations of candidates' thinking in "disease-pulse-syndrome-treatment differentiation" and effectively achieve the goal of clinical thinking assessment through a combination of "process control" and "result control". The examination system offers three major advantages. It standardizes, objectifies, and streamlines the assessment of thought processes, facilitates the organic transformation of TCM education from outcome-based education to thinking-based education, and from exam-oriented education to competency-oriented education, and promotes the practical transformation of TCM assessments from qualitative to quantitative evaluation, as well as from theory to practice. In summary, this system not only represents a technological upgrade to traditional examinations but also empowers the cultivation and assessment of clinical talent in the digital-intelligent era, demonstrating broad application prospects.
2.Influencing factors of stroke complicated with hypertension and its compliance with antihypertensive drugs
Mei LI ; Xiaoli LIU ; Fan ZHANG ; Fujuan YUE ; Tiantian GUO ; Xiuli NIU ; Jixin SUN ; Dongsheng JIANG
Journal of Public Health and Preventive Medicine 2026;37(3):94-98
Objective To investigate the influencing factors of stroke patients with hypertension and their compliance with antihypertensive drugs, and to provide targeted intervention measures for stroke prevention in hypertensive patients. Methods Using the method of multi-stage cluster sampling, a total of 59,434 permanent residents aged 40 and above were selected from 48 monitoring sites in 9 cities of Hebei Province from December 2019 to December 2020. Unconditional logistic regression analysis was used to explore the influencing factors of stroke complicated with hypertension and the compliance of patients with antihypertensive drugs. Results Among the 59 434 subjects, the prevalence rate of stroke was 4.33% and the prevalence rate of stroke complicated with hypertension was 82.47%. The results of univariate analysis showed that the proportion of women, rural areas, dyslipidemia, diabetes, obesity, and people with family history of stroke was higher in stroke patients with hypertension, and the difference was statistically significant (P<0.05). Multivariate logistic regression analysis showed that rural areas, dyslipidemia, diabetes, obesity, and family history of stroke significantly increased the risk of stroke, and the OR (95%CI) values were 1.29 (1.03-1.62), 1.39 (1.12-1.72), 1.58 (1.25-1.99), 1.61 (1.22-2.12) and 1.60 (1.26-2.04), respectively. Among stroke patients with hypertension, 92.71% of patients took antihypertensive drugs. It was found that women's compliance with antihypertensive drugs was good, with an OR (95%CI) value of 1.46 (1.01-2.09). Conclusion The prevalence rate of stroke complicated with hypertension is high in people aged 40 and above in Hebei Province. Hypertensive people should lower blood lipids, control blood glucose, and lose weight as soon as possible to prevent the occurrence of stroke.
3.The construction and risk stratification study of a hepatocellular carcinoma prognosis model based on automatic segmentation and radiomics of gadoxetate disodium-enhanced MRI
Can YU ; Qi ZHANG ; Yueqi WANG ; Tiantian FAN ; Huiying LI ; Shan CONG ; Yang ZHOU
Chinese Journal of Radiology 2025;59(6):681-687
Objective:To explore the efficacy of deep learning-based automatic segmentation technology in the segmentation of hepatocellular carcinoma (HCC) lesions using gadoxetate disodium-enhanced MRI (EOB-MRI), and to investigate the prognostic value of radiomics analysis in predicting patient outcomes.Methods:This was a cross-sectional, retrospective study that collected data from 352 patients with solitary HCC who underwent imaging at the Harbin Medical University Cancer Hospital between June 2015 and May 2023. The patients were randomly divided into a training set ( n=213) and a validation set ( n=139) in a 3∶2 ratio using weighted random sampling. Two radiologists manually annotated the lesions. Hepatobiliary-phase EOB-MRI images were standardized, and six deep learning models,nnU-Net, nnFormer, UnetR, Swin-UnetR, UnetR++ and MedNeXt,were trained for automatic segmentation on the training set. The segmentation performance was evaluated on the validation set, and the segmentation efficacy was assessed using the Dice coefficient and 95% Hausdorff distance (HD 95), identifying of the optimal model. Radiomics features were extracted from both manual and automatic segmentation regions, and the radiomics score (Radscore) was calculated to stratify patients into high-risk and low-risk groups. Kaplan-Meier curves and log-rank tests were used to analyze the differences in relapse-free survival (RFS) and overall survival (OS) between the different stratified groups. Results:Among the automatic segmentation models, the MedNeXt model performed best in the validation set, with a Dice coefficient of 76.0%, HD 95 of 7.2, and a segmentation success rate of 90.6% (126/139). The nnFormer model was the second-best, with a Dice coefficient of 75.3%, HD 95 of 10.1, and a segmentation success rate of 89.9% (125/139). Other models showed Dice coefficients ranging from 66.3% to 74.1%. A MedNext-nnF model was established by combining the MedNeXt and nnFormer models, achieving a Dice coefficient of 78.2%, HD 95 of 5.9, and a segmentation success rate of 92.1% (128/139) in the validation group. After constructing the automatic segmentation radiomics prognostic model, patients were stratified by Radscore. Both manual and automatic segmentation models showed statistically significant differences in RFS and OS between different risk groups ( P<0.001). Conclusions:The Mednext-nnF fusion model enables efficient and automated segmentation of HCC lesions in EOB-MRI. The radiomics model constructed based on the automated segmentation demonstrates strong performance in predicting and stratifying prognostic risk.
4.Cross-cultural adaptation and validation of the postoperative recovery in children scale for dental treatment under general anesthesia (PRiC-DTGA) in Chinese children
Xiaotong SHI ; Bing LIU ; Ze FAN ; Yao ZHANG ; Tiantian LIU ; Zhenzhen GAO ; Haopeng ZHANG ; Hui ZHANG
Chinese Journal of Stomatology 2025;60(10):1128-1136
Objective:To translate and adapt the postoperative recovery in children (PRiC) scale, developing a Chinese version for children undergoing dental treatment under general anesthesia (PRiC-DTGA) with validated psychometric properties.Methods:The PRiC scale underwent forward-backward translation using Brislin′s model. A convenience sample of DTGA patients from the Department of Anesthesiology, School of Stomatology, The Fourth Mility Force Medical University was enrolled for a cross-sectional survey on postoperative complications. Delphi expert consultation informed cultural adaptation based on survey findings to develop the PRiC-DTGA Chinese version. Psychometric validation included reliability and validity testing in a separate DTGA cohort at the same center (April-October 2024).Results:Results from the cross-sectionalsurvey of 231 children showed that 82.7% (191/231) of them hadat least one postoperative complication within 72 hours, and these complications were mainly mild local symptoms. Additionally, 358 copies of the Chinese version of the PRiC-DTGA scale were distributed; 21 invalid questionnaires with incomplete information were excluded, and a total of 337 cases were included inthe study. The final PRiC-DTGA comprised 22 items across three dimensions including physical comfort, social ability, and negative emotional. Exploratory factor analysis (EFA) confirmed all factor loadings>0.4. Confirmatory factor analysis (CFA) demonstrated adequate fit: χ 2/df=1.665, tucker-Lewis index (TLI)=0.924, comparative fit index (CFI)=0.896, standardized root mean square residual (SRMR)=0.041, and root mean square error of approximation (RMSEA)=0.044 (90% CI: 0.035-0.053). Reliability was strong with Cronbach′s α (total scale)=0.853, subscale α=0.632-0.723, split-half reliability=0.824. Validity indices met standards: scale-content validity index (S-CVI)=0.909, Item-CVI range=0.944-1.000, average variance extracted (AVE)=0.473-0.501, composite reliability (CR)=0.830-0.913. Conclusions:The systematically adapted PRiC-DTGA demonstrates robust reliability and validity, serving as an effective tool for assessing postoperative recovery quality in Chinese children following DTGA.
5.Development and validation of an innovative minimally invasive rotary-cutting surgical system for axillary osmidrosis
Jiajun FENG ; Chaoming DENG ; He HONG ; Fan WU ; Guogui TAO ; Xiaoqing SUN ; Xiaomin LIU ; Tiantian ZUO ; Wanhong WU ; Xinran WANG ; Zichuan CHEN ; Hu ZHANG ; Zhiqi HU ; Guobin CHEN
Chinese Journal of Medical Physics 2025;42(7):952-955
Objective To develop an innovative minimally invasive rotary-cutting surgical system for axillary osmidrosis,and conduct clinical validation.Methods The design concept,technical principles and system composition of the innovative minimally invasive rotary-cutting surgical system for axillary osmidrosis were introduced.A total of 73 patients(146 axillae)with axillary osmidrosis were enrolled as subjects,and underwent surgery using the newly developed surgical system.Clinical validation of the system was performed by evaluating postoperative scarring,odor elimination rate,postoperative complication incidence,and patient satisfaction.Results The study demonstrated favorable clinical outcomes in the following aspects:postoperative scarring,odor elimination rate,postoperative complication incidence,and patient satisfaction.Conclusion The minimally invasive rotary-cutting surgical system for axillary osmidrosis is rationally designed.The rotary-cutting puncture device is safe,effective,minimally invasive,and convenient for axillary osmidrosis surgery,warranting further clinical validation and widespread application.
6.Preliminary development with reliability and validity testing of health literacy assessment scale for junior high school students
QI Tiantian, ZHU Fan, ZHU Guiyin, GUO Shihao, YANG Shuang, WU Huiyun, HU Bin, JIANG He, MA Yinghua
Chinese Journal of School Health 2025;46(6):816-820
Objective:
To develop and validate a health literacy assessment scale for junior high school students, providing an effective tool for evaluating and monitoring health literacy among Chinese adolescents.
Methods:
Based on school health education policy documents, a health literacy assessment framework was constructed, comprising five horizontal and four vertical dimensions. From May to June and August to September in 2024, the framework was refined through Delphi expert consultations and focus group discussions, leading to the development of the Health Literacy Assessment Scale for Junior High School Students. In September 2024, a convenience sample of 625 students from three junior high schools in Beijing and Tianjin completed the questionnaire. Item analysis, reliability, and validity tests were conducted to evaluate the scale.
Results:
The recovery rate for two rounds of expert consultation questionnaires was 100%. The expert authority coefficients ( Cr ) were 0.86 and 0.87 respectively (both >0.70), with Kendall W values of 0.34 and 0.27 ( P <0.05). The focus group discussions followed a rigorous structure, and after multiple rounds of item screening and revision, the version 3.0 of the junior high school students health literacy assessment scale was developed, comprising 57 items. Three items that failed to meet the comprehensive screening criteria were preliminarily removed, and the final scale contained 54 items. The scale demonstrated excellent reliability, with an overall Cronbach s α coefficient of 0.92 and split half reliability of 0.93. Confirmatory factor analysis [ χ 2/df =2.094, root mean square error of approximation ( RMSEA )=0.042, comparative fit index ( CFI )=0.911, Tucker Lewis index ( TLI )=0.907] indicated good model fit indices.
Conclusions
The preliminary development of the health literacy assessment scale for junior high school students follows a rigorous item screening process with well designed dimensions, demonstrating good reliability and validity, thus serving as an appropriate evaluation tool for adolescent health literacy.
7.Cross-cultural adaptation and validation of the postoperative recovery in children scale for dental treatment under general anesthesia (PRiC-DTGA) in Chinese children
Xiaotong SHI ; Bing LIU ; Ze FAN ; Yao ZHANG ; Tiantian LIU ; Zhenzhen GAO ; Haopeng ZHANG ; Hui ZHANG
Chinese Journal of Stomatology 2025;60(10):1128-1136
Objective:To translate and adapt the postoperative recovery in children (PRiC) scale, developing a Chinese version for children undergoing dental treatment under general anesthesia (PRiC-DTGA) with validated psychometric properties.Methods:The PRiC scale underwent forward-backward translation using Brislin′s model. A convenience sample of DTGA patients from the Department of Anesthesiology, School of Stomatology, The Fourth Mility Force Medical University was enrolled for a cross-sectional survey on postoperative complications. Delphi expert consultation informed cultural adaptation based on survey findings to develop the PRiC-DTGA Chinese version. Psychometric validation included reliability and validity testing in a separate DTGA cohort at the same center (April-October 2024).Results:Results from the cross-sectionalsurvey of 231 children showed that 82.7% (191/231) of them hadat least one postoperative complication within 72 hours, and these complications were mainly mild local symptoms. Additionally, 358 copies of the Chinese version of the PRiC-DTGA scale were distributed; 21 invalid questionnaires with incomplete information were excluded, and a total of 337 cases were included inthe study. The final PRiC-DTGA comprised 22 items across three dimensions including physical comfort, social ability, and negative emotional. Exploratory factor analysis (EFA) confirmed all factor loadings>0.4. Confirmatory factor analysis (CFA) demonstrated adequate fit: χ 2/df=1.665, tucker-Lewis index (TLI)=0.924, comparative fit index (CFI)=0.896, standardized root mean square residual (SRMR)=0.041, and root mean square error of approximation (RMSEA)=0.044 (90% CI: 0.035-0.053). Reliability was strong with Cronbach′s α (total scale)=0.853, subscale α=0.632-0.723, split-half reliability=0.824. Validity indices met standards: scale-content validity index (S-CVI)=0.909, Item-CVI range=0.944-1.000, average variance extracted (AVE)=0.473-0.501, composite reliability (CR)=0.830-0.913. Conclusions:The systematically adapted PRiC-DTGA demonstrates robust reliability and validity, serving as an effective tool for assessing postoperative recovery quality in Chinese children following DTGA.
8.Advances in the antimicrobial substances in Bacillus.
Tiantian FAN ; Aoxue WANG ; Yutong LIU ; Shumei ZHANG ; Zhengfeng SONG ; Xiuling CHEN
Chinese Journal of Biotechnology 2025;41(10):3667-3682
Bacillus is a class of spore-producing Gram-positive bacteria that produce a variety of antimicrobial substances with different structures and functions. The application of the antimicrobial substances produced by Bacillus can effectively inhibit the activity of harmful bacteria and fungi and promote the sustainable development of green agriculture. The antimicrobial substances produced by Bacillus mainly include proteins, lipopeptides, polyketones, and polypeptides. This paper reviews the synthesis gene clusters, synthesis pathways, structures, and mechanisms of various antimicrobial substances produced by Bacillus and discusses the challenges in the industrial application of these antimicrobial substances. Furthermore, this paper clarifies the future research and development focuses and prospects the application prospects, and provides comprehensive theoretical support for the in-depth research and wide application of the antimicrobial substances produced by Bacillus.
Bacillus/genetics*
;
Anti-Infective Agents/metabolism*
;
Bacterial Proteins/genetics*
;
Antimicrobial Peptides/biosynthesis*
;
Lipopeptides/biosynthesis*
9.Preparation and evaluation of in-house Factor Ⅷ inhibitor-positive quality-control samples
Tiantian WANG ; Jie WANG ; Jia DU ; Xunbei HUANG ; Hehe WANG ; Cuicui QIAO ; Wei LIU ; Jing ZHOU ; Jun YANG ; Yunhai FAN
Chinese Journal of Clinical Laboratory Science 2025;43(11):842-844
Objective To prepare in-house coagulation factor Ⅷ(F Ⅷ)inhibitor-positive control material and evaluate its perform-ance.Methods Frozen plasma samples from hemophilia A patients with positive factor Ⅷ inhibitors were pooled,and diluted with Owren's Veronal Buffer(OVB)to 1 BU/mL of the inhibitor concentration in the mixture,then aliquoted and freeze-stored.The homo-geneity and stability of the in-house quality control material were verified,and its suitability was further assessed through intra-laborato-ry reproducibility among different technologists and inter-laboratory comparisons.Results Twenty-one aliquots were randomly tested for homogeneity assessment,yielding an average of 1.05 BU/mL(range 0.9-1.15 BU/mL),with a standard deviation(SD)of 0.083 and coefficient of variation(CV)of 7.90%.The freshly prepared inhibitor-positive control samples contained a concentration of 1.03 BU/mL.After storage at-80℃ for 24 hours,1 week,1 month,2 months,3 months,4 months,5 months,6 months,7 months,8 months,and 9 months,thawed the samples showed relative deviations of 9%,0%,10%,9%,14%,15%,6%,0%,-10%,-5%,and 2%,respectively.The intra-laboratory CV value from different technologists at this center was 7.28%,and the inter-labora-tory CV across different centers was 18.75%.Conclusion The prepared in-house positive control material of Factor Ⅷ inhibitor ex-hibited adequate uniformity and stability.
10.A questionnaire survey and analysis on the current situation of forensic ethics practice and educational needs
Wenjie LUO ; Tiantian PAN ; Shiyue LI ; Mengjun ZHAN ; Lirong QIU ; Yuchi ZHOU ; Xin CHEN ; Fei FAN ; Zhenhua DENG
Chinese Medical Ethics 2025;38(3):378-384
ObjectiveTo explore the current situation of forensic ethics practice and education by designing a questionnaire on forensic ethics, with a view to exploring the path of forensic ethics education construction. MethodsA total of 667 valid questionnaires were collected using the online survey method, basically covering various regions across the country and all sub-specialties of forensic medicine. Descriptive analysis was used to analyze the relevant data. ResultsMost practitioners had relevant ethical reflections in the process of forensic practice. 69.12% of the respondents indicated that they had studied the relevant rules, but approximately half stated that there were no corresponding ethical norms or standard operating manuals. The specific behaviors violating ethics in different units were diverse. 23.04% of the respondents reported that they had encountered unethical behaviors, but only 4.9% of them reported such violations. In terms of forensic ethics education, 87.75% of the respondents believed that there were issues with the current model of forensic ethics education. Meanwhile, the respondents showed a high degree of recognition for receiving forensic ethics education, with 84.15% of respondents expressing willingness to participate in relevant courses. More than half of respondents were willing to participate in forensic ethics education during undergraduate studies, new employee training, and regular post-employment training. ConclusionCurrently, there is a problem of ethical neglect in forensic work in China. Combining ethics courses with professional courses at the practitioner training stage and providing regular training at the practice stage are effective measures to popularize forensic ethics knowledge, enhance ethical awareness, and improve the quality of practice.


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