1.A case-control study on association between shift work and type 2 diabetes mellitus
Can LIU ; Jing FAN ; Weile WU ; Wenjiong LIANG ; Yulong LIAN ; Suzhen GUAN
Journal of Environmental and Occupational Medicine 2025;42(7):827-832
Background With economic development and globalization, shift work has become prevalent across industries. Its relationship with type 2 diabetes mellitus (T2DM) attracts increasing attention. Objective To thoroughly explore the relationship between shift work and T2DM, and analyze the impacts of specific shift patterns on T2DM, so as to provide a basis for formulating reasonable shift schedules. Methods We conducted a 1:2 matched case-control study among adults (20-60 years) who ordered occupational health examinations at the Wuxi No.8 People's Hospital from November to December 2023. The case group comprised 200 T2DM patients, while the controls were 400 age-stratified matched non-diabetic individuals. General demographic characteristics, behavioral habits, medical history, and shift work exposure data (including shift patterns, frequency, and length of service) 5 years prior to diagnosis were collected through standardized questionnaires. Logistic regression adjusted for selected confounders was employed to evaluate the association between shift work and T2DM. Results The logistic regression analysis demonstrated that shift work was associated with an increased risk of T2DM. After adjusting for confounding factors, shift workers had a 3.55 times higher risk of being diagnosed T2DM compared to non-shift workers (OR=3.55, 95%CI: 1.026, 12.263). The risk varied across different shift patterns, and the three-shift two-rotation system showed the highest risk (OR=4.17, 95%CI: 1.921, 9.035), followed by the two-shift system (OR=2.94, 95%CI: 2.016, 4.281) and four-shift three-rotation system (OR=2.66, 95%CI: 1.611, 6.093). Workers with more than 3 monthly shift days had a 2.74-fold increased risk (95%CI: 1.658, 4.512) compared to non-shift workers. Additionally, working more than 8 h daily (OR=1.74, 95%CI: 1.185, 2.562) and having more than 20 years of service (OR=2.51, 95%CI: 1.581, 3.976) were both significantly associated with a higher T2DM risk. The trend tests revealed that each incremental increase in monthly shift days and length of service elevated T2DM risk by 2.61 times (95%CI: 1.813, 3.765) and 1.49 times (95%CI: 1.147, 1.931), respectively (P<0.05). Conclusion Shift work is an independent risk factor for T2DM, with three-shift two-rotation system posing the highest risk. Shift frequency, daily working hours, and length of service are all significant factors affecting the risk of T2DM. These findings support industry-specific shift policy reform and targeted glucose monitoring and health interventions are recommended for workers engaged in high-risk shift patterns (e.g., three-shift two-rotation system, frequent shifts) and those with prolonged shift work history (>20 years).
2.The Implementation, Clinical Progress and Technical Challenges of Implantable Brain-Computer Interface Systems
Wen-Can QIU ; Liang MA ; Hao-Yue GUO ; Jun-Jie YANG ; Xiao-Jian LI
Progress in Biochemistry and Biophysics 2024;51(10):2478-2497
The breakthrough progress of implantable brain-computer interfaces (iBCIs) technology in the field of clinical trials has attracted widespread attention from both academia and industry. The development and advancement of this technology have provided new solutions for the rehabilitation of patients with movement disorders. However, challenges from many aspects make it difficult for iBCIs to further implement and transform technologies. This paper illustrates the key challenges restricting the large-scale development of iBCIs from the perspective of system implementation, then discusses the latest clinical application progress in depth, aiming to provide new ideas for researchers. For the system implementation part, we have elaborated the front-end signal collector, signal processing and decoder, then the effector. The most important part of the front-end module is the neural electrode, which can be divided into two types: piercing and attached. These two types of electrodes are newly classified and described. In the signal processing and decoder section, we have discussed the experimental paradigm together with signal processing and decoder for the first time and believed that the experimental paradigm acts as a learning benchmark for decoders that play a pivotal role in iBCIs systems. In addition, the characteristics and roles of the effectors commonly used in iBCIs systems, including cursors and robotic arms, are analyzed in detail. In the clinical progress section, we have divided the latest clinical progress into two categories: functional rehabilitation and functional replacement from the perspective of the application scenarios of iBCIs. Functional rehabilitation and functional replacement are two different types of application, though the boundary between the two is not absolute. To this end, we have first introduced the corresponding clinical trial progress from the three levels: application field, research team, and clinical timeline, and then conducted an in-depth discussion and analysis of their functional boundaries, in order to provide guidance for future research. Finally, this paper mentions that the key technical challenges in the development of iBCIs technology come from multiple aspects. First of all, from the signal acquisition level, high-throughput and highly bio-compatible neural interface designing is essential to ensure long-term stable signal acquisition. The electrode surface modification method and electrode packaging were discussed. Secondly, in terms of decoding performance, real-time, accurate, and robust algorithms have a decisive impact on improving the reliability of iBCIs systems. The third key technology is from the perspective of practicality, we believe that the signal transmission mode of wireless communication is the trend of the future, but it still needs to overcome challenges such as data transmission rate and battery life. Finally, we believe that issues such as ethics, privacy, and security need to be addressed through legal, policy, and technological innovation. In summary, the development of iBCIs technology requires not only the unremitting efforts of scientific researchers, but also the participation and support of policymakers, medical professionals, technology developers, and all sectors of society. Through interdisciplinary collaboration and innovation, iBCIs technology will achieve wider clinical applications in the future and make important contributions to improving the quality of life of patients.
3.Scutellarin inhibits proliferation and migration of human prostate cancer cell line PC-3
Yanhong XIAO ; Mingdong JIANG ; Yeyuan LIN ; Can RAN ; Bo LIANG
Basic & Clinical Medicine 2024;44(9):1229-1235
Objective To investigate the effect of scutellarin(STR)on the proliferation and migration of human prostate cancer cell line(PC-3)and its underlying mechanism.Methods PC-3 cells were divided into low-dose STR group,medium-dose STR group,high-dose STR group,colivelin(STAT3 activator)group,high-dose STR+colivelin group and control group.CCK-8 assay and colony formation experiments were applied to detect cell prolif-eration;Scratch experiment was applied to detect cell migration;Transmission electron microscopy was applied to observe the mitochondrial ultrastructure of PC-3 cells.The intracellular free Fe2+,malondialdehyde(MDA)content and reactive oxygen species(ROS)levels were detected by colorimetric method;RT-qPCR was applied to detect the mRNA expression of member 11 of solute vector family(SLC7A11),proliferating cell nuclear antigen(PCNA)and matrix metalloproteinase-9(MMP-9)in cells;Western blot was used to detected p-STAT3 and GPX4 proteins in cells.Results Compared to control group,the mitochondrial structure of PC-3 cells in the low-dose STR group,medium-dose STR group and high-dose STR group was significantly disrupted.The A450 value,colony formation rate,scratch healing rate,PCNA,SLC7A11,MMP-9 mRNA expression,and p-STAT3,GPX4 protein all reduced.While Fe2+,MDA content,and that ROS level increased with dose-dependent way(P<0.05).Compared with control group,the destruction of mitochondrial structure in cells from colivelin group improved;The A450 value,colony formation rate,scratch healing rate,PCNA,SLC7A11,MMP-9 mRNA expression and p-STAT3,GPX4 protein all increased,while Fe2+MDA content,and ROS level decreased(P<0.05).Compared with high-dose STR group,the damage of mitochondrial structure in PC-3 cells in the high-dose STR+colivelin group was re-duced.The A450 value,colony formation rate,scratch healing rate,PCNA,SLC7A11,MMP-9 mRNA expression,and p-STAT3,GPX4 protein increased,while Fe2+,MDA content and ROS level decreased(P<0.05).Conclusions The mechanism by of STR reducing proliferation and migration of prostate cancer cells is potentially related to the inhibition of STAT3/GPX4 pathway.
4.Research status of the correlation between ferroptosis and renal fibrosis
Li-Juan LIANG ; En-Lai DAI ; Jun-Yuan BAI ; Can LIU ; Zhao-Ran DING ; Jie ZHANG
The Chinese Journal of Clinical Pharmacology 2024;40(15):2278-2282
Renal fibrosis is a common pathological manifestation of all chronic kidney diseases.Ferroptosis is closely related to the pathogenesis of renal fibrosis and can influence the onset of renal fibrosis,and it is the most critical step in the development of renal fibrosis.The paper describes the relationship between ferroptosis and renal fibrosis,discusses the research progress of ferroptosis on renal fibrosis,and further summarizes,analyzes,and describes the effective and highly targeted natural active ingredients of traditional Chinese medicines against ferroptosis,and concludes that the reversal of renal fibrosis is achieved through the regulation of the key targets of ferroptosis,with a view to providing a broad new direction for its prospects in the field of renal fibrotic disease prevention and treatment;and to provide a scientific guide for clinical treatment and basis for clinical treatment.
5.Research status of traditional Chinese medicine monomer,drug-to-drug groups and compound formula in the treatment of endometriosis
Bin YUE ; Yuan-Huan CHEN ; Quan-Sheng WU ; Xiao-Hua ZHANG ; Yuan CHENG ; Hao MEI ; Can-Can HUANG ; Zuo-Liang ZHANG ; Xiu-Jia JI
The Chinese Journal of Clinical Pharmacology 2024;40(15):2283-2287
Interventions for endometriosis(EMs)include surgical excision of lesions and hormonal therapy,which usually have limited efficacy and adverse drug reactions.Traditional Chinese medicine(TCM)has the multi-component and multi-target characteristics,which can help patients achieve good clinical benefits by intervening in different parts of the disease.In this paper,we briefly discuss the modern pharmacology of Sanlang and Curcuma longa,and deeply summarize the possible mechanisms of action of TCM monomer and classical compound extracts and their active ingredients through signal pathways in inflammation,immune system,angiogenesis,hormone regulation,etc.,so as to provide theoretical bases for the clinical use of TCM monomers,drug-to-drug groups and compounds in the treatment of EMs.
6.Standardized operational protocol for the China Human Brain Bank Consortium(2nd edition)
Xue WANG ; Zhen CHEN ; Juan-Li WU ; Nai-Li WANG ; Di ZHANG ; Juan DU ; Liang YU ; Wan-Ru DUAN ; Peng-Hao LIU ; Han-Lin ZHANG ; Can HUANG ; Yue-Shan PIAO ; Ke-Qing ZHU ; Ai-Min BAO ; Jing ZHANG ; Yi SHEN ; Chao MA ; Wen-Ying QIU ; Xiao-Jing QIAN
Acta Anatomica Sinica 2024;55(6):734-745
Human brain banks use a standardized protocol to collect,process and store post-mortem human brains and related tissues,along with relevant clinical information,and to provide the tissue samples and data as a resource to foster neuroscience research according to a standardized operating protocols(SOP).Human brain bank serves as the foundation for neuroscience research and the diagnosis of neurological disorders,highlighting the crucial rule of ensuring the consistency of standardized quality for brain tissue samples.The first version of SOP in 2017 was published by the China Human Brain Bank Consortium.As members increases from different regions in China,a revised SOP was drafted by experts from the China Human Brain Bank Consortium to meet the growing demands for neuroscience research.The revised SOP places a strong emphasis on ethical standards,incorporates neuropathological evaluation of brain regions,and provides clarity on spinal cord sampling and pathological assessment.Notable enhancements in this updated version of the SOP include reinforced ethical guidelines,inclusion of matching controls in recruitment,and expansion of brain regions to be sampled for neuropathological evaluation.
7.Construction and application of simulation model of percutaneous intramuscular septal radiofrequency ablation based on COMSOL Multiphysics
Yu-Peng HAN ; Tao ZHANG ; Peng WANG ; Rui HU ; Hong-Liang ZHAO ; Li-Wen LIU ; Can-Hua XU
Chinese Medical Equipment Journal 2024;45(4):45-50
Objective To construct a simulation model for percutaneous intramuscular septal radiofrequency ablation,and to explore the effects of different excitation voltages and ablation time on ablation areas.Methods By using Mimics software the segmentation and three-dimensional surface reconstruction of the tissue in various regions of the heart were realized based on the preoperative CT data of some patients with obstructive hypertrophic cardiomyopathy,and the reconstructed tissue was transformed into three-dimensional solid models with SolidWorks software,then the models were combined with the electrode needle mechanism established in COMSOL Multiphysics simulation software to form a simulation model for percutaneous intramuscular septal radiofrequency ablation.Electromagnetic and thermal multiphysics field boundary conditions were set with the model developed,and the tissue temperature distribution and the effects of ablation time and excitation voltage on the ablation region were simulated and analyzed.Results Simulation analysis of percutaneous intramuscular septal radiofrequency ablation could be carried out with the model developed,and different excitation voltages and ablation time proved to have significant effects on the effective ablation region.Conclusion The model constructed for percutaneous intramuscular septal radiofrequency ablation lays a foundation for the following research of the effects of multiple factors on ablation outcomes,which is of significance for parameter optimization in actual clinical treatment.[Chinese Medical Equipment Journal,2024,45(4):45-50]
8.Simulation study of brain electrical impedance tomography based on radial basis function neural network
Tao ZHANG ; Xin-Yi WANG ; Jiang-Hui HAO ; Lei LIANG ; Can-Hua XU ; Feng FU ; Xue-Chao LIU
Chinese Medical Equipment Journal 2024;45(10):1-6
Objective To study the ability of radial basis function neural network(RBFNN)with different implementations for electrical impedance tomography(EIT)under real brain shapes,to evaluate the advantages and disadvantages of different approaches,and to provide a reference for the selection of practical imaging methods.Methods COMSOL Multiphysics was used to establish a multilayer 2D model with real structure based on brain CT and an EIT simulation dataset.The effects of the exact RBFNN,the orthogonal least squares-based RBFNN(OLS RBFNN)and the K-Means-based BRFNN(K-Means RBFNN)on the image reconstruction result were explored with the dataset constructed.The root mean square error(RMSE)and image correlation coefficient(ICC)were adopted to evaluate the imaging results.Results EIT could be completed with all the three RBFNNs without noise,and the exact RBFNN had the best results with average ICC and RMSE of 0.784 and 0.467,respectively,in the test set.The OLS RBFNN had the best imaging results at a hidden node of 50,with an average ICC and RMSE of 0.788 and 0.462,respectively.The K-Means RBFNN achieved the best imaging results at noise levels of 30,40,50,60,70 and 80 dB with stable ICC and RMSE and high robustness.Conclusion All the three RBFNNs can be used for brain EIT image reconstruction with their own advantages and disadvantages,and the RBFNN has to be selected for EIT reconstruc-tion based on considerations on actual conditions.[Chinese Medical Equipment Journal,2024,45(10):1-6]
9.Functional MRI assessment of microstructural and perfusion changes in the kidneys of rats with intrauterine growth restriction
Can LIANG ; Ying LI ; Xiao-Ri HE
Chinese Journal of Contemporary Pediatrics 2024;26(3):289-296
Objective To explore the value of functional magnetic resonance imaging(MRI)techniques,including intravoxel incoherent motion(IVIM),T1 mapping,and T2 mapping,in assessing the microstructural and perfusion changes in the kidneys of rats with intrauterine growth restriction(IUGR).Methods An IUGR rat model was established through a low-protein diet during pregnancy.Offspring from pregnant rats on a low-protein diet were randomly divided into an IUGR 8-week group and an IUGR 12-week group,while offspring from pregnant rats on a normal diet were divided into a normal 8-week group and a normal 12-week group(n=8 for each group).The apparent diffusion coefficient(ADC),true diffusion coefficient(Dt),pseudo-diffusion coefficient(D*),perfusion fraction(f),T1 value,and T2 value of the renal cortex and medulla were compared,along with serum creatinine and blood urea nitrogen levels among the groups.Results The Dt value in the renal medulla was higher in the IUGR 12-week group than in the IUGR 8-week group,and the D* value in the renal medulla was lower in the IUGR 12-week group than in both the normal 12-week group and the IUGR 8-week group(P<0.05).The T1 value in the renal medulla was higher than in the cortex in the IUGR 8-week group,and the T1 value in the renal medulla was higher in the IUGR 12-week group than in both the IUGR 8-week group and the normal 12-week group,with the cortical T1 value in the IUGR 12-week group also being higher than that in the normal 12-week group(P<0.05).The T2 values in the renal medulla were higher than those in the cortex across all groups(P<0.05).There were no significant differences in the T2 values of either the cortex or medulla among the groups(P>0.05).There were no significant differences in serum creatinine and blood urea nitrogen levels among the groups(P>0.05).Glomerular hyperplasia and hypertrophy without significant fibrotic changes were observed in the IUGR 8-week group,whereas glomerular atrophy,cystic stenosis,and interstitial inflammatory infiltration and fibrosis were seen in the IUGR 12-week group.Conclusions IVIM MRI can be used to assess and dynamically observe the microstructural and perfusion damage in the kidneys of IUGR rats.MRI T1 mapping can be used to evaluate kidney damage in IUGR rats,and the combination of MRI T1 mapping and T2 mapping can further differentiate renal fibrosis in IUGR rats.[Chinese Journal of Contemporary Pediatrics,2024,26(3):289-296]
10.Expert consensus on integrated traditional Chinese and western medicine diagnosis and treatment for osteoporotic fractures
Dong-Liang WANG ; Fan-Fu FANG ; Chang-Sheng LIU ; Jia-Can SU
China Journal of Orthopaedics and Traumatology 2024;37(3):242-250
Osteoporotic fractures represent the most severe complications of osteoporosis,characterized by insidious onset,high mortality and disability rates,and a steadily increasing incidence,imposing a significant socioeconomic burden.Western medicine has advantages in diagnosis and surgical interventions,while traditional Chinese medicine excels in holistic manage-ment and the restoration of bodily equilibrium.The integration of both traditional Chinese medicine(TCM)and western medicine emerges as an effective therapeutic strategy for osteoporotic fractures.In order to propagate the concept of integrated diagnosis and treatment,foster the advancement of integrated medical techniques for osteoporotic fractures,and establish standardized and nor-mative protocols for disease prevention,diagnosis,and treatment,a consensus expert group,led by Geriatric Branch of Chinese Geriatrics Society,the Young Osteoporosis Group of Orthopedics Branch of Chinese Medical Association,Osteoporosis Group of Orthopedics Branch of Chinese Physician Association,and Osteoporosis Professional Committee of the Shanghai Society of Inte-grated Traditional Chinese and Western Medicine,was established.This group engaged in deliberations and formulated the"Ex-pert Consensus on Integrated Traditional Chinese and Western Medicine Diagnosis and Treatment of Osteoporotic Fractures"elu-cidating the concept of integrated medicine and offering recommendations in the domains of prevention,diagnosis,and treatment,with the aspiration of ameliorating the prognosis of osteoporotic fractures and enhancing the quality of life for these patients.

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