Neural injuries can cause considerable functional impairments,and both central and peripheral nervous systems have limited regenerative capacity.The existing conventional pharmacological treatments in clinical practic...Neural injuries can cause considerable functional impairments,and both central and peripheral nervous systems have limited regenerative capacity.The existing conventional pharmacological treatments in clinical practice show poor targeting,rapid drug clearance from the circulatory system,and low therapeutic efficiency.Therefore,in this review,we have first described the mechanisms underlying nerve regeneration,characterized the biomaterials used for drug delivery to facilitate nerve regeneration,and highlighted the functionalization strategies used for such drug-delivery systems.These systems mainly use natural and synthetic polymers,inorganic materials,and hybrid systems with advanced drug-delivery abilities,including nanoparticles,hydrogels,and scaffoldbased systems.Then,we focused on comparing the types of drug-delivery systems for neural regeneration as well as the mechanisms and challenges associated with targeted delivery of drugs to facilitate neural regeneration.Finally,we have summarized the clinical application research and limitations of targeted delivery of these drugs.These biomaterials and drug-delivery systems can provide mechanical support,sustained release of bioactive molecules,and enhanced intercellular contact,ultimately reducing cell apoptosis and enhancing functional recovery.Nevertheless,immune reactions,degradation regulation,and clinical translations remain major unresolved challenges.Future studies should focus on optimizing biomaterial properties,refining delivery precision,and overcoming translational barriers to advance these technologies toward clinical applications.展开更多
Excessive levels of Fluoride(F−)and Cadmium(Cd)in drinking groundwater may pose health risks.This study assessed the health risks associated with F−and Cd contamination in rural drinking groundwater sources in Wutai C...Excessive levels of Fluoride(F−)and Cadmium(Cd)in drinking groundwater may pose health risks.This study assessed the health risks associated with F−and Cd contamination in rural drinking groundwater sources in Wutai County,Shanxi Province,China,to support population health protection,water resource management,and environmental decision-making.Groundwater samples were collected and analyzed,and a Human Health Risk Model(HHRA)was applied to evaluate groundwater quality.The results showed that both contents of F−and Cd in groundwater exceeded the Class III limits of China's national groundwater quality standard(GB/T 14848—2024).Fluoride levels met the Class V threshold,with enrichment area mainly located in the east part of the study area.Cadmium levels reached Class IV,with elevated concentrations primarily observed in the western and northwestern regions.Correlation analysis revealed that F−showed weak or no correlation with other measured substances,indicating independent sources.Health risk assessment results indicated that F−poses potential health risks to rural residents,while cadmium,due to its relatively low concentrations,does not currently present a significant health risk.Among different demographic groups,the health risk levels of F−exposure followed the order:Infants>children>adult females>adult males.The findings highlight that fluoride is the primary contributor to health risks associated with groundwater consumption in the study area.Strengthened monitoring and prevention of F−contamination are urgently needed.This research provides a scientific basis for the prevention and control of fluoride pollution in groundwater and offers practical guidance for safeguarding drinking water safety in rural China.展开更多
Layered oxides have attracted significant attention as cathodes for sodium-ion batteries(SIBs)due to their compositional versatility and tuneable electrochemical performance.However,these materials still face challeng...Layered oxides have attracted significant attention as cathodes for sodium-ion batteries(SIBs)due to their compositional versatility and tuneable electrochemical performance.However,these materials still face challenges such as structural phase transitions,Na^(+)/vacancy ordering,and Jahn–Teller distortion effect,resulting in severe capacity decay and sluggish ion kinetics.We develop a novel Cu/Y dual-doping strategy that leads to the formation of"Na–Y"interlayer aggregates,which act as structural pillars within alkali metal layers,enhancing structural stability and disrupting the ordered arrangement of Na^(+)/vacancies.This disruption leads to a unique coexistence of ordered and disordered Na^(+)/vacancy states with near-zero strain,which significantly improves Na^(+)diffusion kinetics.This structural innovation not only mitigates the unfavorable P2–O2 phase transition but also facilitates rapid ion transport.As a result,the doped material demonstrates exceptional electrochemical performance,including an ultra-long cycle life of 3000 cycles at 10 C and an outstanding high-rate capability of~70 mAh g^(−1)at 50 C.The discovery of this novel interlayer pillar,along with its role in modulating Na^(+)/vacancy arrangements,provides a fresh perspective on engineering layered oxides.It opens up promising new pathways for the structural design of advanced cathode materials toward efficient,stable,and high-rate SIBs.展开更多
Objective:To evaluate the safety and effectiveness of Xuefu Zhuyu Decoction in treating diabetic encephalopathy.Methods:Computer search and manual search of Pub Med,Web of Science,The Cochrane Library,CNKI,WF,VIP and ...Objective:To evaluate the safety and effectiveness of Xuefu Zhuyu Decoction in treating diabetic encephalopathy.Methods:Computer search and manual search of Pub Med,Web of Science,The Cochrane Library,CNKI,WF,VIP and CBM from January 2000 to April 2020 on the treatment of diabetic encephalopathy with Xuefu Zhuyu Decoction In randomized controlled clinical trials,select documents that meet the criteria for analysis using Rev Man 5.3 software.Results:A total of 11 articles and 838 patients were included in the study.Metaanalysis showed that Xuefu Zhuyu Decoction was effective(OR=3.71,95%CI[2.42,5.70],P<0.00001),and the patient’s neurological deficit score(MD=-4.52,95%CI[-5.10,-3.94],P<0.00001),fasting blood glucose(MD=-1.05,95%CI[-1.51,-0.59],P<0.00001),2 hours postprandial blood glucose(MD=-1.31,95%CI[-1.94,-0.69],P<0.00001),glycated hemoglobin(MD=-0.94,95%CI[-1.15,-0.72],P<0.00001),TCM symptom score(MD=-2.44,95%CI[-3.82,-1.06],P=0.0005<0.01),vitality score(MD=12.79,95%CI[8.79,16.79],P<0.00001),the improvement effect is obvious Better than conventional Western medicine treatment.Conclusion:Xuefu Zhuyu Decoction can improve the clinical efficiency of patients with diabetic encephalopathy,reduce brain damage,reduce blood sugar and glycated hemoglobin levels,and has good safety.However,the quality of some of the included literatures is low,and the number of clinical cases is small,which may affect the authenticity of the Meta analysis results.Still need to be further verified by clinical randomized controlled trials with high-quality large samples.展开更多
嵌合型Y染色体丢失(mosaic loss of Y chromosome(LOY),m LOY)是指男性部分体细胞因Y染色体(Y chromosome,Chr Y)丢失而与非LOY细胞形成的遗传嵌合现象。m LOY主要发现于血液中,不仅因为血细胞易取样,更因为发生LOY突变的造血干细胞在...嵌合型Y染色体丢失(mosaic loss of Y chromosome(LOY),m LOY)是指男性部分体细胞因Y染色体(Y chromosome,Chr Y)丢失而与非LOY细胞形成的遗传嵌合现象。m LOY主要发现于血液中,不仅因为血细胞易取样,更因为发生LOY突变的造血干细胞在获得竞争优势后可驱动克隆性造血,产生大量携带LOY突变的血细胞。由于结构的特殊性,人Chr Y在有丝分裂时易发生异常分离,同时在种系突变、环境暴露、衰老微环境等因素的驱动下,m LOY成为男性体细胞中最常见的获得性突变。早期的人群队列研究显示造血系统m LOY与男性预期寿命缩短以及癌症、阿尔茨海默病和心血管疾病等慢病风险增加显著相关,近期的小鼠模型研究表明m LOY是白血病和心血管疾病的诱发因素。因此,m LOY不仅为众多慢病的发生发展提供了共同的遗传学基础,也为研究人类寿命与疾病风险中的性别差异提供了新的内核。本文首先简述了LOY驱动克隆性造血的人群队列研究进展,随后梳理出m LOY的危险因素、检测方法和小鼠模型的构建策略,并总结了m LOY诱发多种重大慢病的潜在分子机制,最后对m LOY领域的挑战和发展机遇提出了前瞻展望。相关综述成果为深入研究Chr Y的生物学功能和慢病的性别差异提供参考。展开更多
基金the support from Base for Interdisciplinary Innovative Talent Training,Shanghai Jiao Tong UniversityYouth Science and Technology Innovation Studio of Shanghai Jiao Tong University School of Medicine。
文摘Neural injuries can cause considerable functional impairments,and both central and peripheral nervous systems have limited regenerative capacity.The existing conventional pharmacological treatments in clinical practice show poor targeting,rapid drug clearance from the circulatory system,and low therapeutic efficiency.Therefore,in this review,we have first described the mechanisms underlying nerve regeneration,characterized the biomaterials used for drug delivery to facilitate nerve regeneration,and highlighted the functionalization strategies used for such drug-delivery systems.These systems mainly use natural and synthetic polymers,inorganic materials,and hybrid systems with advanced drug-delivery abilities,including nanoparticles,hydrogels,and scaffoldbased systems.Then,we focused on comparing the types of drug-delivery systems for neural regeneration as well as the mechanisms and challenges associated with targeted delivery of drugs to facilitate neural regeneration.Finally,we have summarized the clinical application research and limitations of targeted delivery of these drugs.These biomaterials and drug-delivery systems can provide mechanical support,sustained release of bioactive molecules,and enhanced intercellular contact,ultimately reducing cell apoptosis and enhancing functional recovery.Nevertheless,immune reactions,degradation regulation,and clinical translations remain major unresolved challenges.Future studies should focus on optimizing biomaterial properties,refining delivery precision,and overcoming translational barriers to advance these technologies toward clinical applications.
基金supported by the Northeast Geological Science and Technology Innovation Center of China Geological Survey(Grant NO.QCJJ2022-43)the Natural Resources Comprehensive Survey Project(Grant Nos.DD20230470,DD20230508)the National Groundwater Monitoring Network Operation and Maintenance Program(Grant No.DD20251300109).
文摘Excessive levels of Fluoride(F−)and Cadmium(Cd)in drinking groundwater may pose health risks.This study assessed the health risks associated with F−and Cd contamination in rural drinking groundwater sources in Wutai County,Shanxi Province,China,to support population health protection,water resource management,and environmental decision-making.Groundwater samples were collected and analyzed,and a Human Health Risk Model(HHRA)was applied to evaluate groundwater quality.The results showed that both contents of F−and Cd in groundwater exceeded the Class III limits of China's national groundwater quality standard(GB/T 14848—2024).Fluoride levels met the Class V threshold,with enrichment area mainly located in the east part of the study area.Cadmium levels reached Class IV,with elevated concentrations primarily observed in the western and northwestern regions.Correlation analysis revealed that F−showed weak or no correlation with other measured substances,indicating independent sources.Health risk assessment results indicated that F−poses potential health risks to rural residents,while cadmium,due to its relatively low concentrations,does not currently present a significant health risk.Among different demographic groups,the health risk levels of F−exposure followed the order:Infants>children>adult females>adult males.The findings highlight that fluoride is the primary contributor to health risks associated with groundwater consumption in the study area.Strengthened monitoring and prevention of F−contamination are urgently needed.This research provides a scientific basis for the prevention and control of fluoride pollution in groundwater and offers practical guidance for safeguarding drinking water safety in rural China.
基金supported by the“Pioneer”and“Leading Goose”R&D Program of Zhejiang Province of China(No.2024C01056)。
文摘Layered oxides have attracted significant attention as cathodes for sodium-ion batteries(SIBs)due to their compositional versatility and tuneable electrochemical performance.However,these materials still face challenges such as structural phase transitions,Na^(+)/vacancy ordering,and Jahn–Teller distortion effect,resulting in severe capacity decay and sluggish ion kinetics.We develop a novel Cu/Y dual-doping strategy that leads to the formation of"Na–Y"interlayer aggregates,which act as structural pillars within alkali metal layers,enhancing structural stability and disrupting the ordered arrangement of Na^(+)/vacancies.This disruption leads to a unique coexistence of ordered and disordered Na^(+)/vacancy states with near-zero strain,which significantly improves Na^(+)diffusion kinetics.This structural innovation not only mitigates the unfavorable P2–O2 phase transition but also facilitates rapid ion transport.As a result,the doped material demonstrates exceptional electrochemical performance,including an ultra-long cycle life of 3000 cycles at 10 C and an outstanding high-rate capability of~70 mAh g^(−1)at 50 C.The discovery of this novel interlayer pillar,along with its role in modulating Na^(+)/vacancy arrangements,provides a fresh perspective on engineering layered oxides.It opens up promising new pathways for the structural design of advanced cathode materials toward efficient,stable,and high-rate SIBs.
基金National natural science foundation of China(No.81973796)。
文摘Objective:To evaluate the safety and effectiveness of Xuefu Zhuyu Decoction in treating diabetic encephalopathy.Methods:Computer search and manual search of Pub Med,Web of Science,The Cochrane Library,CNKI,WF,VIP and CBM from January 2000 to April 2020 on the treatment of diabetic encephalopathy with Xuefu Zhuyu Decoction In randomized controlled clinical trials,select documents that meet the criteria for analysis using Rev Man 5.3 software.Results:A total of 11 articles and 838 patients were included in the study.Metaanalysis showed that Xuefu Zhuyu Decoction was effective(OR=3.71,95%CI[2.42,5.70],P<0.00001),and the patient’s neurological deficit score(MD=-4.52,95%CI[-5.10,-3.94],P<0.00001),fasting blood glucose(MD=-1.05,95%CI[-1.51,-0.59],P<0.00001),2 hours postprandial blood glucose(MD=-1.31,95%CI[-1.94,-0.69],P<0.00001),glycated hemoglobin(MD=-0.94,95%CI[-1.15,-0.72],P<0.00001),TCM symptom score(MD=-2.44,95%CI[-3.82,-1.06],P=0.0005<0.01),vitality score(MD=12.79,95%CI[8.79,16.79],P<0.00001),the improvement effect is obvious Better than conventional Western medicine treatment.Conclusion:Xuefu Zhuyu Decoction can improve the clinical efficiency of patients with diabetic encephalopathy,reduce brain damage,reduce blood sugar and glycated hemoglobin levels,and has good safety.However,the quality of some of the included literatures is low,and the number of clinical cases is small,which may affect the authenticity of the Meta analysis results.Still need to be further verified by clinical randomized controlled trials with high-quality large samples.
