1.Development of brush ionization probe mass spectrometry for convenient on-site detection of traditional Chinese medicine
Junxian WU ; Chaofa WEI ; Ceyu MIAO ; Jiaquan XU ; Xiang LI ; Li ZHOU ; Shuanglong WANG ; Liping KANG ; Zidong QIU
Science of Traditional Chinese Medicine 2026;4(1):81-86
Objective: To develop a convenient, direct, and highly sensitive method for screening trace chemical additives in complex Chinese patent medicines, thereby addressing core technological bottlenecks in pharmaceutical analysis and quality control. Methods: A brush ionization probe device was independently designed and constructed, and an efficient detection method was established through systematic optimization of key parameters. Twenty-three Chinese patent medicine samples, representing 6 dosage forms (capsules, tablets, pills, granules, powders, and liquid preparations), were analyzed using 10 common chemical additives as target analytes. Results: All samples were successfully analyzed without complex pretreatment, and 5 chemical additives were detected in 7 Chinese patent medicines. The brush ionization probe device exhibited cost-effectiveness (~0.2 USD per probe), operational simplicity, rapid analysis (~10s per sample), high efficiency, and minimal reagent consumption (~10 μL per sample). Conclusion: This advancement is expected to provide an innovative scientific tool for improving the generality and convenience of on-site quality control, while promoting technological progress in disciplines such as pharmacology and traditional Chinese medicine.
2.Health management of glaucoma
Weixin ZHENG ; Zidong CHEN ; Minbin YU
Chinese Journal of Experimental Ophthalmology 2025;43(7):637-643
Glaucoma is the world's first irreversible blinding eye disease and the second leading cause of blindness.Its onset is insidious and its course is long, and if not treated in time, it can eventually lead to blindness.With the increasing population growth and aging, the number of patients with glaucoma is increasing year by year, and the patients' requirements for quality of life are becoming higher and higher, not only to see but to see well, which is a very difficult challenge for the blindness prevention of glaucoma.This paper analyzes the concept and connotation of health management and chronic disease management, and expounds the current research status, problems and challenges, and achievements of glaucoma health management at home and abroad.Combined with the 14th Five-Year Plan (2021—2025) for National Eye Health and other relevant policies and regulations issued in China in recent years, based on industry norms such as the Chinese Glaucoma Guidelines (2020) and various diagnostic and treatment requirements, the development opportunities and solutions for building a glaucoma health management model in accordance with China's national conditions are explored to guide the work of preventing glaucoma blindness, reducing the blindness rate of glaucoma and improving the level of eye health in China.
3.Effects of wearing compression garments on delayed onset muscle soreness based on nuclear magnetic resonance diffusion tensor imaging and physiological&biochemical indices
Miao QIN ; Zidong YANG ; Caizhen CHEN
Chinese Journal of Sports Medicine 2025;44(4):272-280
Objective To explore the intervention effect of tight-fitting equipment on delayed onset muscle soreness(DOMS)after exercise using nuclear magnetic resonance diffusion tensor imaging com-bined with physiological and biochemical indices.Methods Seven healthy adult males participated in a randomized crossover study,and each subject underwent two experiments,with an interval of 7 days,as an elution period to eliminate the effect of the previous experiment.In both experiments,all sub-jects were induced DOMS by finishing 80 times of deep jumps,in 4 groups.In the first experiment,all subjects(the Con group)wore loose clothes during and in 24 hours after the jumping,while in the second one they(the compression sleeve group,Cs)were in full-leg tight leggings.Before,as well as 0 h,24 h and 48 h after the exercise,the muscle soreness,the peak isokinetic torque of the knee extensor muscle group,and the activities of creatine kinase(CK)and lactate dehydrogenase(LDH)were measured.Moreover,before and 24 h after exercise,MRI was performed to measure bi-lateral thigh fractional anisotropy(FA),mean diffusivity(MD),radial diffusivity(RD)and their ei-genvalues(λ1,λ2,λ3).Results The time and group interaction effect for muscle soreness was signifi-cant after exercise(P<0.01),with that of the Cs group significantly lower than the Con group at all three time points after exercise(P<0.01).However,no significant time or group interaction effects were found in the peak isokinetic torque(P>0.05).Moreover,the time and group interaction was sig-nificant in the serum enzyme activity(P<0.05),with CK activity of the Cs group significantly lower than the Con group at 24 h and 48 h after exercise(P<0.05)and LDH activity significantly lower than the latter at 0 h and 24 h after exercise(P<0.05).Meanwhile,MRI showed that the λ2(P<0.05),λ3(P<0.05),and RD(P<0.01)values of quadriceps femoris in the Cs group were significant-ly lower than the Con group at 24 h post-exercise,while the FA values were significantly higher than the latter at the same time point(P<0.05).Conclusion Wearing tight-fitting gear during exercise and within 24 hours after exercise can suppress the elevation of serum CK and LDH activities,and relieve DOMS.Moreover,magnetic resonance diffusion tensor imaging results suggest that it may be realized by limiting the development of localized edema through sustained pressure on the body.
4.Health management of glaucoma
Weixin ZHENG ; Zidong CHEN ; Minbin YU
Chinese Journal of Experimental Ophthalmology 2025;43(7):637-643
Glaucoma is the world's first irreversible blinding eye disease and the second leading cause of blindness.Its onset is insidious and its course is long, and if not treated in time, it can eventually lead to blindness.With the increasing population growth and aging, the number of patients with glaucoma is increasing year by year, and the patients' requirements for quality of life are becoming higher and higher, not only to see but to see well, which is a very difficult challenge for the blindness prevention of glaucoma.This paper analyzes the concept and connotation of health management and chronic disease management, and expounds the current research status, problems and challenges, and achievements of glaucoma health management at home and abroad.Combined with the 14th Five-Year Plan (2021—2025) for National Eye Health and other relevant policies and regulations issued in China in recent years, based on industry norms such as the Chinese Glaucoma Guidelines (2020) and various diagnostic and treatment requirements, the development opportunities and solutions for building a glaucoma health management model in accordance with China's national conditions are explored to guide the work of preventing glaucoma blindness, reducing the blindness rate of glaucoma and improving the level of eye health in China.
5.Development and challenges of mass spectrometry database for traditional Chinese medicine:A review
Wang YIJUN ; Yang ZHIMING ; Wu JUNXIAN ; Ma XIAOLI ; Zhou LI ; Li XIANG ; Ma BAIPING ; Qiu ZIDONG ; Kang LIPING
Science of Traditional Chinese Medicine 2025;3(3):210-221
Accurate characterization of the chemical composition of complex traditional Chinese medicine(TCM)is an essential foundation for the modern scientific interpretation of TCM principles.Mass spectrometry is the most dominant technique in current research on the material basis of TCM,offering the highest sensitivity and the richest information provision.Establishing mass spectrometry databases represents the most effective approach to facilitating the structural analysis of TCM chemical components.This paper systematically searches and reviews literature published from January 2005 to January 2025 through online databases such as China National Knowledge Infrastructure,PubMed,and Web of Science,using"mass spectrometry database"and"traditional Chinese medicine"as keywords.It reviews the current status of seven TCM chemical component mass spectrometry databases and seven natural product mass spectrometry databases.The key advancements of these mass spectrometry databases for natural products are summarized,detailing their characteristics,search methodologies,included information,and data sources.Additionally,challenges related to data quality,standardization,timely updates,database interaction,retrieval functionality,and data sharing and security are discussed in depth.Furthermore,the paper explores prospective development directions for TCM mass spectrometry databases,emphasizing the importance of open data sharing,technological innovation,and data security.Through this analysis,the paper aims to offer theoretical guidance and practical recommendations for the precise identification of TCM components,as well as for the construction and application of these databases.
6.Photoplethysmography signal smoothing technology based on locally orthogonal weighted polynomial fitting
Jinlu LI ; Zhanyu LAI ; Keyang DONG ; Yufan DUAN ; Zidong DAI ; Yurong LIU ; Xiaoping JIANG
Chinese Journal of Medical Physics 2025;42(7):945-951
To address the issue of reduced signal quality of photoplethysmography caused by local fluctuation,an approach called locally orthogonal weighted polynomial fitting(LOWPF)is proposed for signal smoothing.After determining the positions of the fluctuation sequences using the forward-backward difference XOR method,weighted polynomial fitting is applied to these sequences,and the fitted values are used to replace the fluctuation sequences to achieve signal smoothing.By constructing orthogonal basis functions,the condition number of the coefficient matrix is reduced,and the stability of the equation system solution for higher-order fitting is improved.Simulation results demonstrate that the smoothed signal's XOR smoothness of the proposed method surpasses that of the moving average algorithm and the empirical mode decomposition reconstruction algorithm.The smoothing results on 241 sets of measured PPG signals show that LOWPF achieves an efficiency of smoothness of 89.10%,significantly higher than the 78.05%of empirical mode decomposition and the 59.13%of the 5-point moving average algorithm.LOWPF has promising application prospects for smoothing signals with significant local fluctuations.
7.Effects of wearing compression garments on delayed onset muscle soreness based on nuclear magnetic resonance diffusion tensor imaging and physiological&biochemical indices
Miao QIN ; Zidong YANG ; Caizhen CHEN
Chinese Journal of Sports Medicine 2025;44(4):272-280
Objective To explore the intervention effect of tight-fitting equipment on delayed onset muscle soreness(DOMS)after exercise using nuclear magnetic resonance diffusion tensor imaging com-bined with physiological and biochemical indices.Methods Seven healthy adult males participated in a randomized crossover study,and each subject underwent two experiments,with an interval of 7 days,as an elution period to eliminate the effect of the previous experiment.In both experiments,all sub-jects were induced DOMS by finishing 80 times of deep jumps,in 4 groups.In the first experiment,all subjects(the Con group)wore loose clothes during and in 24 hours after the jumping,while in the second one they(the compression sleeve group,Cs)were in full-leg tight leggings.Before,as well as 0 h,24 h and 48 h after the exercise,the muscle soreness,the peak isokinetic torque of the knee extensor muscle group,and the activities of creatine kinase(CK)and lactate dehydrogenase(LDH)were measured.Moreover,before and 24 h after exercise,MRI was performed to measure bi-lateral thigh fractional anisotropy(FA),mean diffusivity(MD),radial diffusivity(RD)and their ei-genvalues(λ1,λ2,λ3).Results The time and group interaction effect for muscle soreness was signifi-cant after exercise(P<0.01),with that of the Cs group significantly lower than the Con group at all three time points after exercise(P<0.01).However,no significant time or group interaction effects were found in the peak isokinetic torque(P>0.05).Moreover,the time and group interaction was sig-nificant in the serum enzyme activity(P<0.05),with CK activity of the Cs group significantly lower than the Con group at 24 h and 48 h after exercise(P<0.05)and LDH activity significantly lower than the latter at 0 h and 24 h after exercise(P<0.05).Meanwhile,MRI showed that the λ2(P<0.05),λ3(P<0.05),and RD(P<0.01)values of quadriceps femoris in the Cs group were significant-ly lower than the Con group at 24 h post-exercise,while the FA values were significantly higher than the latter at the same time point(P<0.05).Conclusion Wearing tight-fitting gear during exercise and within 24 hours after exercise can suppress the elevation of serum CK and LDH activities,and relieve DOMS.Moreover,magnetic resonance diffusion tensor imaging results suggest that it may be realized by limiting the development of localized edema through sustained pressure on the body.
8.Development of patch clamp technology in the past 10 years:visual analysis based on CiteSpace and VOSviewer
Haizhen GUO ; Zidong CONG ; Yuke ZHAO ; Xiaofeng LI ; Lu YU ; Shule QIAN ; Runying WANG ; Wuxun DU
Chinese Journal of Tissue Engineering Research 2025;29(31):6717-6726
BACKGROUND:Patch clamp technique has been developed for more than 40 years as the"gold standard"for the study of ion channels.However,the research content of scientific research institutions is relatively independent,and the existing research results are not systematically summarized,which leads to the phenomenon of high repeatability and weak innovation in the existing research.Therefore,it is urgent to make a comprehensive review of patch clamp technology to clarify the current research status,hot spots,and future development direction.OBJECTIVE:To summarize the research status and development trend of patch clamp technique in recent 10 years.METHODS:Publications on patch clamp technology from 2013 to 2023 were collected using the Web of Science core collection database.CiteSpace and VOSviewer software were used to quantify the number of publications and analyze the network of literature entries,including countries,institutions,journals,authors,keywords,highly cited literature,and co-cited references.RESULTS AND CONCLUSION:(1)In recent 10 years,the research in the field of patch clamp technology has gradually entered a stage of stable development.(2)China and the United States are the leading countries in this regard.The Chinese Academy of Sciences is an institution with core influence.Journal of Neuroscience is the main publication.Park,Won Sun team(Jeonbuk National University)and Chu,Li team(Hebei Key Laboratory of Chinese Medicine Research on Cardio-Cerebrovascular Disease)have made outstanding contributions in this field,but there is less collaboration and communication between the teams and no network cooperation model has been formed.(3)Patch clamp technology is mainly used in the electrophysiological characteristics of the nervous system and the pathological mechanism of the disease,which is the focus of researchers'continuous attention.(4)In the study of electrophysiological characteristics of cardiovascular system and its pathological mechanism,the electrophysiological characteristics of primary cardiomyocytes and induced pluripotent stem cell-derived cardiomyocytes and the pathological mechanism of atrial fibrillation,cardiotoxicity,sudden cardiac death,hypertension and other cardiovascular diseases have been the focus of research in recent years.(5)In the application of patch clamp technology combined with other biotechnology,it will be an important research direction to focus on the cross fusion with optogenetics,two-photon calcium imaging and other technologies.(6)In the research of drug screening and identification of therapeutic targets,especially the research of patch clamp technology and traditional Chinese medicine compound,it will become a great help in the future research of component traditional Chinese medicine.
9.Photoplethysmography signal smoothing technology based on locally orthogonal weighted polynomial fitting
Jinlu LI ; Zhanyu LAI ; Keyang DONG ; Yufan DUAN ; Zidong DAI ; Yurong LIU ; Xiaoping JIANG
Chinese Journal of Medical Physics 2025;42(7):945-951
To address the issue of reduced signal quality of photoplethysmography caused by local fluctuation,an approach called locally orthogonal weighted polynomial fitting(LOWPF)is proposed for signal smoothing.After determining the positions of the fluctuation sequences using the forward-backward difference XOR method,weighted polynomial fitting is applied to these sequences,and the fitted values are used to replace the fluctuation sequences to achieve signal smoothing.By constructing orthogonal basis functions,the condition number of the coefficient matrix is reduced,and the stability of the equation system solution for higher-order fitting is improved.Simulation results demonstrate that the smoothed signal's XOR smoothness of the proposed method surpasses that of the moving average algorithm and the empirical mode decomposition reconstruction algorithm.The smoothing results on 241 sets of measured PPG signals show that LOWPF achieves an efficiency of smoothness of 89.10%,significantly higher than the 78.05%of empirical mode decomposition and the 59.13%of the 5-point moving average algorithm.LOWPF has promising application prospects for smoothing signals with significant local fluctuations.
10.Clinical Application of"Tongdu Qishen"Combined with Manifestation-Root Cause Yin-Yang and Reinforcing-Reducing Balance Acupuncture in Treatment of Stroke Sequela Hemiplegia
Xiaoteng XU ; Zidong WANG ; Zhigang LI
World Science and Technology-Modernization of Traditional Chinese Medicine 2025;27(5):1260-1266
The concepts of manifestation-root cause,Yin-Yang balance,reinforcing-reducing for deficiency and excess should not only be focused on the traditional Chinese medicine formulations,but also be consistently applied in clinical practice of acupuncture treatment.The"Tongdu Qishen"acupuncture method,developed by Professor Li Zhigang based on years of experience in treating psychosis,demonstrates unique advantages in treating stroke sequela hemiplegia.From the three aspects of theoretical basis,classic medical records,acupoint selection and operation analysis,this study introduces the clinical application of"Tongdu Qishen"combined with manifestation-root cause Yin-Yang and reinforcing-reducing balance acupuncture in the treatment of stroke sequela hemiplegia,offering new insights and strategies for exploring effective clinical treatment with syndrome differentiation.

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