1.Sclera Vessel Segmentation Based on Fusion Filtering and Reflection Suppression
Ming-Xuan FAN ; Zong-Qing MA ; Chu-Xiang GAO ; Yi-Xuan SHI ; Zi-Hang ZHANG ; Zhe-Xuan JIA ; Fan FAN ; Guo-Liang HUANG ; Jiang ZHU
Progress in Biochemistry and Biophysics 2026;53(5):1195-1206
ObjectiveIn traditional Chinese medicine (TCM), the foundational doctrine that the eyes reflect the essence of the internal viscera establishes ocular observation as a cornerstone of diagnostic practice. Specifically, the morphological characteristics and coloration variations of the scleral microvasculature serve as critical clinical indicators for assessing the dynamic balance of Qi and Blood, as well as the pathological status of internal organs. Historically, however, TCM eye diagnosis has relied predominantly on the subjective clinical experience and visual acuity of individual practitioners, leading to inherent challenges in standardization and reproducibility. While automated computer-aided diagnostic systems offer a promising solution, existing vessel segmentation algorithms encounter significant domain-specific bottlenecks when applied to scleral imagery. These challenges primarily stem from the highly reflective and moist nature of the ocular surface, which generates severe reflective interference. Furthermore, the inherent low contrast of fine capillary networks against complex background textures, compounded by non-uniform illumination, frequently results in high false-positive rates, misdetections, and severe vessel fragmentation. To address these critical limitations and advance the objective quantification of TCM diagnostics, this paper proposes a novel, highly robust sclera vessel segmentation framework that innovatively integrates Frangi-Sato dual-filter adaptive enhancement with pixel-level reflection detection. MethodsThe proposed methodology systematically addresses the segmentation pipeline through three synergistic stages. First, to overcome the structural limitations of single-filter approaches, a multi-scale weighted fusion strategy is meticulously designed to harness the complementary extraction capabilities of both Frangi and Sato filters. This adaptive enhancement optimally balances the preservation of main vessel trunk continuity with the heightened sensitivity required for delineating delicate, low-contrast peripheral capillaries. Second, to tackle the persistent issue of reflective highlights, a sophisticated multi-feature synergistic reflection detection module is introduced. By jointly analyzing local information entropy, gradient field variations, and intensity statistical distributions, this module achieves precise, pixel-level identification and elimination of reflective artifacts without compromising the underlying vascular structures. Finally, a dual-level adaptive thresholding strategy, featuring an innovative “core protection” mechanism, is implemented. This critical step effectively suppresses complex background noise while rigorously preserving the structural and topological integrity of the intricate vessel network, preventing the structural breaks often seen in conventional binarization methods. ResultsThe efficacy of the proposed framework was rigorously evaluated using both self-constructed clinical datasets specifically acquired for TCM research and standardized public datasets. Extensive experimental results demonstrate that the proposed method consistently outperforms state-of-the-art traditional approaches and contemporary deep learning models. Specifically, the proposed method achieves a Dice similarity coefficient of approximately 0.71 on the private clinical dataset, and secures the best performance across the majority of quantitative metrics on both datasets. Notably, the framework exhibits exceptional robustness and generalization capabilities in highly challenging scenarios characterized by intense reflective interference, low signal-to-noise ratios, and cross-domain image variations. ConclusionThis study successfully realizes the high-integrity, automated segmentation of scleral vessel networks under complex clinical imaging conditions. By overcoming the fundamental algorithmic challenges of reflection interference and micro-vessel loss, the proposed methodology provides potential support for the digitization, objective standardization, and intelligent advancement of modern TCM eye diagnosis systems.
2.Sclera Vessel Segmentation Based on Fusion Filtering and Reflection Suppression
Ming-Xuan FAN ; Zong-Qing MA ; Chu-Xiang GAO ; Yi-Xuan SHI ; Zi-Hang ZHANG ; Zhe-Xuan JIA ; Fan FAN ; Guo-Liang HUANG ; Jiang ZHU
Progress in Biochemistry and Biophysics 2026;53(5):1195-1206
ObjectiveIn traditional Chinese medicine (TCM), the foundational doctrine that the eyes reflect the essence of the internal viscera establishes ocular observation as a cornerstone of diagnostic practice. Specifically, the morphological characteristics and coloration variations of the scleral microvasculature serve as critical clinical indicators for assessing the dynamic balance of Qi and Blood, as well as the pathological status of internal organs. Historically, however, TCM eye diagnosis has relied predominantly on the subjective clinical experience and visual acuity of individual practitioners, leading to inherent challenges in standardization and reproducibility. While automated computer-aided diagnostic systems offer a promising solution, existing vessel segmentation algorithms encounter significant domain-specific bottlenecks when applied to scleral imagery. These challenges primarily stem from the highly reflective and moist nature of the ocular surface, which generates severe reflective interference. Furthermore, the inherent low contrast of fine capillary networks against complex background textures, compounded by non-uniform illumination, frequently results in high false-positive rates, misdetections, and severe vessel fragmentation. To address these critical limitations and advance the objective quantification of TCM diagnostics, this paper proposes a novel, highly robust sclera vessel segmentation framework that innovatively integrates Frangi-Sato dual-filter adaptive enhancement with pixel-level reflection detection. MethodsThe proposed methodology systematically addresses the segmentation pipeline through three synergistic stages. First, to overcome the structural limitations of single-filter approaches, a multi-scale weighted fusion strategy is meticulously designed to harness the complementary extraction capabilities of both Frangi and Sato filters. This adaptive enhancement optimally balances the preservation of main vessel trunk continuity with the heightened sensitivity required for delineating delicate, low-contrast peripheral capillaries. Second, to tackle the persistent issue of reflective highlights, a sophisticated multi-feature synergistic reflection detection module is introduced. By jointly analyzing local information entropy, gradient field variations, and intensity statistical distributions, this module achieves precise, pixel-level identification and elimination of reflective artifacts without compromising the underlying vascular structures. Finally, a dual-level adaptive thresholding strategy, featuring an innovative “core protection” mechanism, is implemented. This critical step effectively suppresses complex background noise while rigorously preserving the structural and topological integrity of the intricate vessel network, preventing the structural breaks often seen in conventional binarization methods. ResultsThe efficacy of the proposed framework was rigorously evaluated using both self-constructed clinical datasets specifically acquired for TCM research and standardized public datasets. Extensive experimental results demonstrate that the proposed method consistently outperforms state-of-the-art traditional approaches and contemporary deep learning models. Specifically, the proposed method achieves a Dice similarity coefficient of approximately 0.71 on the private clinical dataset, and secures the best performance across the majority of quantitative metrics on both datasets. Notably, the framework exhibits exceptional robustness and generalization capabilities in highly challenging scenarios characterized by intense reflective interference, low signal-to-noise ratios, and cross-domain image variations. ConclusionThis study successfully realizes the high-integrity, automated segmentation of scleral vessel networks under complex clinical imaging conditions. By overcoming the fundamental algorithmic challenges of reflection interference and micro-vessel loss, the proposed methodology provides potential support for the digitization, objective standardization, and intelligent advancement of modern TCM eye diagnosis systems.
3.Historical Evolution and Key Information Research on Classic Formula Puji Xiaoduyin
Lianchao ZHU ; Lyuyuan LIANG ; Jing TANG ; Jialei CAO ; Ziming XU ; Huizhen ZHANG ; Zhidan GUO ; Rongze MA ; Zhengshao ZHANG ; Bingqi WEI ; Xiubo DU ; Bingxiang MA
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(10):238-247
Puji Xiaoduyin, a specialized formula for the swollen-head epidemic, was recorded in the Catalogue of Ancient Classical Formula (the Second Batch)-Han Medicine, published in September 2023. It had been inherited and developed by medical experts of successive generations and passed down to this day. This paper sorted out the historical evolution of this formula using bibliometric methods. It also comprehensively analyzed key information on the formula name, historical origin, drug dosage, herb origin, processing methods, decocting methods, function, and clinical applications. Additionally, this paper analyzed the application of this formula in both modern and ancient times. Results showed that the formula was first recorded as "Puji Xiaodu Yinzi" in LI Dongyuan's Proven Formulas written by LI Gao from the Jin dynasty. The medicinal composition and dosage were: Scutellariae Radix and Coptidis Rhizoma (20.65 g each), Ginseng Radix et Rhizoma 12.39 g, Scrophulariae Radix, Citri Reticulatae Pericarpium, and Glycyrrhizae Radix et Rhizoma (8.26 g each), Forsythiae Fructus, Arctii Fructus, Isatidis Radix, and Lasiosphaera Calvatia (4.13 g each), Bombyx Batryticatus and Cimicifugae Rhizoma (2.891 g each), Bupleuri Radix and Platycodonis Radix (8.26 g each). These medicines were grounded to fine powder. One dose, including 20.65 g of the powder, was mixed with 600 mL of water and decocted to 300 mL. After abandoning slag, the medicine should be taken warm frequently. In the formula, Bombyx Batryticatus is stir-fired. With the effect of dispersing wind and clearing heat, removing stagnation and dissipating mass, the formula is specialized in swollen-head epidemic, pestilence, red and swelling head, face, and neck, dry mouth and tongue, as well as other diseases resulting from toxic heat stagnated in the upper jiao. The formula is widely used in treating diseases involving the respiratory, dermal, ophthalmologic, otolaryngologic, and nervous systems. The formula is most frequently used for respiratory diseases, with a wide range of symptoms including parotitis/mumps (66 times), followed by tonsillitis (28 times). In conclusion, the broadly applied formula has accurate efficacy and great development value.
4.Historical Evolution and Key Information Research on Classic Formula Puji Xiaoduyin
Lianchao ZHU ; Lyuyuan LIANG ; Jing TANG ; Jialei CAO ; Ziming XU ; Huizhen ZHANG ; Zhidan GUO ; Rongze MA ; Zhengshao ZHANG ; Bingqi WEI ; Xiubo DU ; Bingxiang MA
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(10):238-247
Puji Xiaoduyin, a specialized formula for the swollen-head epidemic, was recorded in the Catalogue of Ancient Classical Formula (the Second Batch)-Han Medicine, published in September 2023. It had been inherited and developed by medical experts of successive generations and passed down to this day. This paper sorted out the historical evolution of this formula using bibliometric methods. It also comprehensively analyzed key information on the formula name, historical origin, drug dosage, herb origin, processing methods, decocting methods, function, and clinical applications. Additionally, this paper analyzed the application of this formula in both modern and ancient times. Results showed that the formula was first recorded as "Puji Xiaodu Yinzi" in LI Dongyuan's Proven Formulas written by LI Gao from the Jin dynasty. The medicinal composition and dosage were: Scutellariae Radix and Coptidis Rhizoma (20.65 g each), Ginseng Radix et Rhizoma 12.39 g, Scrophulariae Radix, Citri Reticulatae Pericarpium, and Glycyrrhizae Radix et Rhizoma (8.26 g each), Forsythiae Fructus, Arctii Fructus, Isatidis Radix, and Lasiosphaera Calvatia (4.13 g each), Bombyx Batryticatus and Cimicifugae Rhizoma (2.891 g each), Bupleuri Radix and Platycodonis Radix (8.26 g each). These medicines were grounded to fine powder. One dose, including 20.65 g of the powder, was mixed with 600 mL of water and decocted to 300 mL. After abandoning slag, the medicine should be taken warm frequently. In the formula, Bombyx Batryticatus is stir-fired. With the effect of dispersing wind and clearing heat, removing stagnation and dissipating mass, the formula is specialized in swollen-head epidemic, pestilence, red and swelling head, face, and neck, dry mouth and tongue, as well as other diseases resulting from toxic heat stagnated in the upper jiao. The formula is widely used in treating diseases involving the respiratory, dermal, ophthalmologic, otolaryngologic, and nervous systems. The formula is most frequently used for respiratory diseases, with a wide range of symptoms including parotitis/mumps (66 times), followed by tonsillitis (28 times). In conclusion, the broadly applied formula has accurate efficacy and great development value.
5.Establishment of a competency-oriented evaluation system for oncology practice based on entrustable professional activities
Yao LIANG ; Hua HUANG ; Bijun ZOU ; Rulin MIAO ; Jing GUO ; Fei MA ; Tao HOU ; Ming KUANG
Chinese Journal of Medical Education Research 2025;24(4):540-545
Objective:To construct a competency-oriented assessment index system based on entrustable professional activities (EPAs) for 5-year undergraduate clinical medical students in oncology internship.Methods:From June to December 2023, the scoping review approach and Bicomb 2.0 were used to construct and manage an item pool. The draft of EPAs and competencies was designed based on truncated word frequency. SPSS 25.0 was used for cluster analysis and UCINET 6.0 was used for visualization. Combining the characteristics and consensus of oncology, a multi-center expert group used the KJ method to draft the framework of EPAs and competencies. Subsequently, the expert group defined milestones and mapped the milestones to the framework to establish the assessment system.Results:Based on 26 included studies, a draft was created containing 19 EPA indicators and 72 competency characteristic indicators. After cluster analysis, 13 experts from 6 medical institutions established a framework including 13 EPAs and 10 competencies as well as 50 milestones, leading to the construction of the "EPAs-competencies-milestones" assessment system.Conclusions:The "EPAs-competencies-milestones" assessment system aligns with the trend of reform, demonstrating universality, specificity, and scientificity. It provides a reference for the development and assessment of oncology internship courses in medical universities.
6.Outcomes of transcatheter transseptal mitral valve-in-valve replacement using Edward's SAPIEN 3 in high surgical risk patients-a multicenter study in China
Xiang CHEN ; Bin WANG ; Yi-wei XU ; Xiao-ping PENG ; Fan QIAO ; Xiang-wen LIANG ; Ke HAN ; Xiao-fei JIANG ; Xiang MA ; Wen-yi YANG ; Guo-sheng FU ; Mao-long SU ; Yan WANG
Chinese Journal of Interventional Cardiology 2025;33(2):79-86
Objective To evaluate the safety and efficacy of valve-in-valve transcatheter mitral valve replacement(ViV-TMVR)in patients with bioprosthetic valve degeneration who are at high surgical risk.Methods This study is a multi-center,retrospective cohort analysis of 20 consecutive patients who underwent transseptal ViV-TMVR using the Edwards SAPIEN 3 transcatheter heart valve(THV).The primary endpoints include technical success and procedural success,both defined according to the Mitral Valve Academic Research Consortium(MVARC)criteria,as well as mortality and functional change assessed based on New York Heart Association(NYHA)classification at 30-days and six months post-procedure.Clinical follow-up assessments are conducted at 30-days and six months.Results From February 2021 to October 2022,a total of 20 patients with symptoms of bioprosthetic valve degeneration were enrolled across nine sites in China.The patients had a mean age of(73.5±5.5)years,with 85.0%being females and 70.0%classified as NYHA class Ⅲ/Ⅳ.The study achieved a 100.0%technical success rate and a 90.0%procedural success rate finally.All patients remained alive during the 30-day follow-up period.However,six months post-intervention,two patients(10.0%)were re-hospitalized due to heart failure,and sadly,one of them(5.0%)died.None of the patients reported any adverse events related to ViV-TMVR during the follow-up period.Notably,there was a significant improvement in NYHA class compared to baseline(P=0.0004)at six-month follow-ups.Conclusions The transseptal ViV-TMVR technique proved to be highly successful and was associated with significant improvement in NYHA class function.These findings strongly suggest that it serves as a safe and efficient treatment alternative for high-risk patients suffering from bioprosthetic valve degeneration.
7.Outcomes of transcatheter transseptal mitral valve-in-valve replacement using Edward's SAPIEN 3 in high surgical risk patients-a multicenter study in China
Xiang CHEN ; Bin WANG ; Yi-wei XU ; Xiao-ping PENG ; Fan QIAO ; Xiang-wen LIANG ; Ke HAN ; Xiao-fei JIANG ; Xiang MA ; Wen-yi YANG ; Guo-sheng FU ; Mao-long SU ; Yan WANG
Chinese Journal of Interventional Cardiology 2025;33(2):79-86
Objective To evaluate the safety and efficacy of valve-in-valve transcatheter mitral valve replacement(ViV-TMVR)in patients with bioprosthetic valve degeneration who are at high surgical risk.Methods This study is a multi-center,retrospective cohort analysis of 20 consecutive patients who underwent transseptal ViV-TMVR using the Edwards SAPIEN 3 transcatheter heart valve(THV).The primary endpoints include technical success and procedural success,both defined according to the Mitral Valve Academic Research Consortium(MVARC)criteria,as well as mortality and functional change assessed based on New York Heart Association(NYHA)classification at 30-days and six months post-procedure.Clinical follow-up assessments are conducted at 30-days and six months.Results From February 2021 to October 2022,a total of 20 patients with symptoms of bioprosthetic valve degeneration were enrolled across nine sites in China.The patients had a mean age of(73.5±5.5)years,with 85.0%being females and 70.0%classified as NYHA class Ⅲ/Ⅳ.The study achieved a 100.0%technical success rate and a 90.0%procedural success rate finally.All patients remained alive during the 30-day follow-up period.However,six months post-intervention,two patients(10.0%)were re-hospitalized due to heart failure,and sadly,one of them(5.0%)died.None of the patients reported any adverse events related to ViV-TMVR during the follow-up period.Notably,there was a significant improvement in NYHA class compared to baseline(P=0.0004)at six-month follow-ups.Conclusions The transseptal ViV-TMVR technique proved to be highly successful and was associated with significant improvement in NYHA class function.These findings strongly suggest that it serves as a safe and efficient treatment alternative for high-risk patients suffering from bioprosthetic valve degeneration.
8.Impact of intensified infection control measures on the incidence of health-care-associated infection under the background of diagnosis-intervention packet payment:an interrupted time series analysis
Xuwen GUO ; Bei JIA ; Xinran WANG ; Xiaoqian MA ; Liang DONG
Chinese Journal of Infection Control 2025;24(8):1083-1088
Objective To evaluate the impact of intensified infection control measures on the incidence of health-care-associated infection(HAI)under the background of the reform of diagnosis-intervention packet(DIP)payment,and provide decision-making basis for HAI management under the reform of medical insurance payment.Methods The interrupted time series research design was used to collect the monitoring data of HAI in a tertiary first-class hospital from October 2021 to September 2024.The changing trend of HAI incidence was analyzed by piecewise li-near regression,and the intervention effect was evaluated by standardized infection ratio(SIR).Results From Oc-tober 2021 to September 2022,the incidence of HAI was 2.17%(95%CI:2.08%-2.26%),which dropped to 1.87%(95%CI:1.82%-1.92%)after the intervention.Piecewise linear regression analysis showed that the inci-dence of HAI decreased by 0.324%immediately after the intervention(95%CI:-0.481%--0.167%,P<0.001),and the trend after the intervention changed significantly compared with that before the intervention(95%CI:-0.033%--0.009%,P=0.001).SIR analysis showed that the actual incidence during the entire intervention period was equivalent to 74.56%of the incidence in intervention period,gradually stabilized from 88.39%-93.81%at the beginning of the intervention to 67.03%-71.22%at the end of the study,and the intervention effect was sustained.Conclusion Intensified infection control measures under the background of the reform of DIP significantly reduce the incidence of HAI and improve the stability of infection control management,which provide new insights into the synergistic improvement of medical insurance payment and HAI management quality.
9.Highlights and cutting-edge advances in hepatobiliary and pancreatic cancer research at the American Society of Clinical Oncology(ASCO)Annual Meeting 2025
Chaoman HUANG ; Wenyang LI ; Yanxi PAN ; Liang MA ; Jianhong ZHONG ; Pingping GUO ; Yili MA
Chinese Journal of General Surgery 2025;34(8):1738-1750
The 2025 American Society of Clinical Oncology(ASCO)Annual Meeting was held in Chicago from May 30 to June 3,2025.As one of the largest and most influential academic events in global oncology,the ASCO meeting brought together numerous world-class oncology experts.It focused on the unmet clinical needs in gastrointestinal malignancies such as hepatocellular carcinoma,cholangiocarcinoma,and pancreatic cancer,and presented a wealth of cutting-edge research findings and therapeutic innovations.These advances provide important evidence-based support for the diagnosis and treatment of hepatobiliary and pancreatic cancers.Based on the latest achievements presented at ASCO 2025,this article discusses the hot topics and future directions in the management of hepatobiliary and pancreatic tumors.
10.Effects of Hedysarum polybotrys polysacchcaide on FXR-FGF19 signal pathway in diabetes rats
Lei ZHANG ; Sheng-fang WAN ; Ya-ling LI ; Qian-kun LIANG ; Yi-hong TIAN ; Xin-xin MA ; Qian GUO
The Chinese Journal of Clinical Pharmacology 2025;41(1):76-80
Objective To study the effects of Hedysarum polysaccharides polysaccharide(HPS)on the farnesoid X receptor(FXR)-fibroblast growth factor-19(FGF19)signaling pathway of diabetes rats.Methods Twelve Wistar male rats were randomly selected as the normal group,and the other rats were fed with a single intraperitoneal injection of streptozotocin(50 mg·kg-1 STZ)and a high sugar and high-fat diet to replicate the diabetes rat model.Model rats were randomly divided into model group,positive control group(given 400 mg·kg-1·d-1 suspension of Bifidobacterium quadruplex live bacterial tablets by gavage),experimental-H,-M,-L groups(given 200,100,and 50 mg·kg-1·d-1 doses of HPS suspension by gavage);normal group,and model group were given equal volume of purified water by gavage once a day for 8 consecutive weeks.Glucose(Glu)was detected by a blood glucose meter;and serum total glyceride(TG)and total cholesterol(TC)were detected by enzyme-linked immunosorbent assay reagent kit;the expressions of FXR、fibroblast growth factor receptors 4(FGFR4)relative mRNA expression level and protein were detected by real-time fluorescence quantitative polymerase chain reaction method and Western blot.Results The Glu concentrations in the normal group,model group,positive control group,and experimental-H groups were(7.66±0.61),(29.25±1.64),(23.31±3.02)and(19.31±5.13)mmol·L-1,respectively;the TG content were(957.00±113.73),(1 345.00±246.44),(958.00±96.53)and(964.00±130.22)μmol·L-1,respectively;the TC content were(161.65±4.53),(302.19±5.35),(236.09±5.14)and(165.58±2.58)μmol·L-1,respectively;the expression of FXR relative mRNA expression level were 1.00±0.06,0.48±0.02,0.67±0.04 and 0.92±0.04,respectively;the expression of FGFR4 relative mRNA expression level were 1.00±0.04,0.17±0.01,0.48±0.04 and 0.41±0.03;respectively.The above indexes of the model group were compared with the control group,and the above indexes of the control group and the experimental-H group were compared with the model group,and the differences were statistically significant(all P<0.01).Conclusion HPS improves blood sugar,lowers blood lipids,and protects liver and intestinal tissues,possibly by regulating the FXR-FGF19 signaling pathway in intestinal tissue,and regulating bile acid synthesis.

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