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Endogenous/exogenous dual stimulation“ROS engineering”amplification combined with autophagy-augmented for efficient ferroptosis therapy

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Nano Research 2025年第1期18卷 597-606页

作者： Pengye Du Pengpeng Lei Yuan Liang Ran An Yi Wei Shuyu Liu jianhao zheng Hongjie zhang State Key Laboratory of Rare Earth Resource Utilization Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun 130022China School of Applied Chemistry and Engineering University of Science and Technology of ChinaHefei 230026China Department of Chemistry Tsinghua UniversityBeijing 100084China

“Reactive oxygen species(ROS)engineering”is one of the most promising anti-tumor treatments developed in recent *** explosion of ROS will cause oxidative stress,thereby inducing tumor cell ***,ROS accumulation in tumor cells is eliminated by endogenous cellular self-regulation *** this work,a kind of endogenous/exogenous dual stimulation nanoagent noted as UMZC is *** reaction occurs between NH_(2)-MIL-88B(Fe)contained in UMZC and the overexpression of endogenous H_(2)O_(2)to generate ROS,amplified by endogenous H_(2)S of colon tumor *** addition,NH_(2)-MIL-88B(Fe)also functions to deplete glutathione(GSH)for stopping it from consuming *** nanoparticles at the core of UMZC convert near-infrared into visible light,which excites zinc phthalocyanine to initiate the photochemical reaction that generates more ROS,thus alleviating the lack of tissue penetration depth for visible *** agonist chitosan oligosaccharides induce enhancement of cellular autophagy for disrupting cellular metabolic stress and the resistance to oxidative stress of tumor cells,allowing“ROS engineering”to fully exert anti-tumor *** of ROS generation,GSH depletion,and induced cellular autophagy caused by nanoagents have promoting effects on the occurrence of ***,the nanoagents show the ability to effectively treat colon tumors.

关键词： reactive oxygen species(ROS)engineering upconversion nanoparticles cellular autophagy ferroptosis tumor therapy

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Spontaneous Orientation Polarization of Anisotropic Equivalent Dipoles Harnessed by Entropy Engineering for Ultra‑Thin Electromagnetic Wave Absorber

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Nano-Micro Letters 2025年第1期17卷 424-438页

作者： Honghan Wang Xinyu Xiao Shangru Zhai Chuang Xue Guangping zheng Deqing zhang Renchao Che Junye Cheng Liaoning Key Lab of Lignocellulose Chemistry and BioMaterials Liaoning Collaborative Innovation Center for Lignocellulosic BiorefinerySchool of Light Industry and Chemical EngineeringDalian Polytechnic UniversityDalian 116034People’s Republic of China School of Life Science and Biotechnology Dalian University of TechnologyDalian 116024People’s Republic of China Department of Mechanical Engineering Hong Kong Polytechnic UniversityHung HomKowloonHong Kong 999077People’s Republic of China School of Materials Science and Engineering Qiqihar UniversityQiqihar 161006People’s Republic of China Laboratory of Advanced Materials Shanghai Key Lab of Molecular Catalysis and Innovative MaterialsAcademy for Engineering&TechnologyFudan UniversityShanghai 200438People’s Republic of China Department of Materials Science Shenzhen MSU-BIT UniversityShenzhen 517182People’s Republic of China

The synthesis of carbon supporter/nanoscale high-entropy alloys(HEAs)electromagnetic response composites by carbothermal shock method has been identified as an advanced strategy for the collaborative competition engineering of conductive/dielectric *** migration modes within HEAs as manipulated by the electronegativity,valence electron configurations and molar proportions of constituent elements determine the steady state and efficiency of equivalent ***,enlightened by skin-like effect,a reformative carbothermal shock method using carbonized cellulose paper(CCP)as carbon supporter is used to preserve the oxygencontaining functional groups(O·)of carbonized cellulose fibers(CCF).Nucleation of HEAs and construction of emblematic shell-core CCF/HEAs heterointerfaces are inextricably linked to carbon metabolism induced by O·.Meanwhile,the electron migration mode of switchable electronrich sites promotes the orientation polarization of anisotropic equivalent *** virtue of the reinforcement strategy,CCP/HEAs composite prepared by 35%molar ratio of Mn element(CCP/HEAs-Mn_(2.15))achieves efficient electromagnetic wave(EMW)absorption of−51.35 dB at an ultra-thin thickness of 1.03 *** mechanisms of the resulting dielectric properties of HEAs-based EMW absorbing materials are elucidated by combining theoretical calculations with experimental characterizations,which provide theoretical bases and feasible strategies for the simulation and practical application of electromagnetic functional devices(e.g.,ultra-wideband bandpass filter).

关键词： High-entropy alloys Carbothermal shock Switchable electron migration modes Emblematic shell-core heterointerfaces Ultra-thin thickness

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骨髓间充质干细胞输注对脓毒症大鼠促炎因子和心功能的影响

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转化医学电子杂志 2017年第6期4卷 20-25页

作者：程仁洪郑健新张伟福州总医院急诊科福建福州350025

目的:探讨骨髓间充质干细胞(BMSCs)输注对脓毒症大鼠促炎因子和心功能的影响.方法:将BMSCs进行分离培养之后,选取24只成功建立脓毒症模型(盲肠结扎穿孔术,CLP法)的Wistar大鼠,依照随机数字法分成脓毒症组、间充质干细胞组以及上清液(间... 详细信息

目的:探讨骨髓间充质干细胞(BMSCs)输注对脓毒症大鼠促炎因子和心功能的影响.方法:将BMSCs进行分离培养之后,选取24只成功建立脓毒症模型(盲肠结扎穿孔术,CLP法)的Wistar大鼠,依照随机数字法分成脓毒症组、间充质干细胞组以及上清液(间充质干细胞上层培养液)组各8只,另选8只接受假手术干预的Wistar大鼠作为假手术组,各组均经大鼠尾静脉注射给药干预1周,干预后以双抗体免疫夹心法检测血清肿瘤坏死因子-α(TNF-α)、肌钙蛋白、白介素-6(IL-6)、心肌匀浆中超氧化物歧化酶(SOD)、丙二醛(MDA)含量,同时在治疗后利用超声心动图评价各组小鼠的心功能.结果:间质干细胞组TNF-α(1253.701±326.960)pg/mL、肌钙蛋白(79.720±11.352)pg/mL、IL-6(747.596±33.184)pg/mL、LVDS(2.925±0.271)mm与上清液组TNF-α(1337.888±201.937)pg/mL、肌钙蛋白(83.923±14.491)pg/mL、IL-10(749.253±37.118)pg/mL、LVDS(3.013±0.236)mm显著低于脓毒症组(P0.05).结论:骨髓间充质干细胞输注能够改善脓毒症大鼠心功能,其作用机制可能与其能够调节炎症因子表达有关.

关键词：骨髓间充质干细胞脓毒症促炎因子心功能

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医学信息检索继续教育模式探讨

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图书馆论坛 2003年第3期23卷 135-136,14页

作者：蒋学刚李健康张政宝第一军医大学图书馆广东广州510515

总结第一军医大学图书馆开展医学信息继续教育的经验,提出医学信息继教模式的突出特性:在教学方式上要活,在教学内容上要新,教员业务要精。并提出要建立开放的教育模式,走联合办学的方式,拓展继续教育的空间。

关键词：医学信息检索继续教育教学方式教学内容教育模式联合办学

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Resting-state brain network remodeling after different nerve reconstruction surgeries:a functional magnetic resonance imaging study in brachial plexus injury rats

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Neural Regeneration Research 2025年第5期20卷 1495-1504页

作者： Yunting Xiang Xiangxin Xing Xuyun Hua Yuwen zhang Xin Xue Jiajia Wu Mouxiong zheng He Wang jianguang Xu School of Rehabilitation Science Shanghai University of Traditional Chinese MedicineShanghaiChina Engineering Research Center of Traditional Chinese Medicine Intelligent Rehabilitation Ministry of EducationShanghaiChina Department of Rehabilitation Medicine Yueyang Hospital of Integrated Traditional Chinese and Western MedicineShanghai University of Traditional Chinese MedicineShanghaiChina Department of Traumatology and Orthopedics Yueyang Hospital of Integrated Traditional Chinese and Western MedicineShanghai University of Traditional Chinese MedicineShanghaiChina Institute of Science and Technology for Brain-Inspired Intelligence Fudan UniversityShanghaiChina Key Laboratory of Computational Neuroscience and Brain-Inspired Intelligence(Fudan University) Ministry of EducationShanghaiChina Human Phenome Institute Fudan UniversityShanghaiChina

Distinct brain remodeling has been found after different nerve reconstruction strategies,including motor representation of the affected ***,differences among reconstruction strategies at the brain network level have not been *** study aimed to explore intranetwork changes related to altered peripheral neural pathways after different nerve reconstruction surgeries,including nerve repair,endto-end nerve transfer,and end-to-side nerve ***–Dawley rats underwent complete left brachial plexus transection and were divided into four equal groups of eight:no nerve repair,grafted nerve repair,phrenic nerve end-to-end transfer,and end-to-side transfer with a graft sutured to the anterior upper ***-state brain functional magnetic resonance imaging was obtained 7 months after *** independent component analysis algorithm was utilized to identify group-level network components of interest and extract resting-state functional connectivity values of each voxel within the *** in intra-network resting-state functional connectivity were compared among the *** muscle reinnervation was assessed by behavioral observation(elbow flexion)and *** results showed that alterations in the sensorimotor and interoception networks were mostly related to changes in the peripheral neural *** repair was related to enhanced connectivity within the sensorimotor network,while end-to-side nerve transfer might be more beneficial for restoring control over the affected limb by the original motor *** thalamic-cortical pathway was enhanced within the interoception network after nerve repair and end-to-end nerve *** areas related to cognition and emotion were enhanced after end-to-side nerve *** study revealed important brain networks related to different nerve *** networks may be potential targets for enhancing motor recovery.

关键词： brain functional networks end-to-end nerve transfer end-to-side nerve transfer independent component analysis nerve repair peripheral plexus injury resting-state functional connectivity

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Insights into spinal muscular atrophy from molecular biomarkers

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Neural Regeneration Research 2025年第7期20卷 1849-1863页

作者： Xiaodong Xing Xinzhu Liu Xiandeng Li Mi Li Xian Wu Xiaohui Huang Ajing Xu Yan Liu jian zhang Department of Clinical Pharmacy Xinhua HospitalShanghai Jiao Tong University School of MedicineShanghaiChina College of Pharmacy Chongqing Medical UniversityChongqingChina

Spinal muscular atrophy is a devastating motor neuron disease characterized by severe cases of fatal muscle *** is one of the most common genetic causes of mortality among infants aged less than 2 *** research is currently receiving more attention,and new candidate biomarkers are constantly being *** review initially discusses the evaluation methods commonly used in clinical practice while briefly outlining their respective pros and *** also describe recent advancements in research and the clinical significance of molecular biomarkers for spinal muscular atrophy,which are classified as either specific or non-specific *** review provides new insights into the pathogenesis of spinal muscular atrophy,the mechanism of biomarkers in response to drug-modified therapies,the selection of biomarker candidates,and would promote the development of future ***,the successful utilization of biomarkers may facilitate the implementation of gene-targeting treatments for patients with spinal muscular atrophy.

关键词： biomarkers disease progression gene-targeting therapy neurofilaments Nusinersen spinal muscular atrophy(SMA) survival motor neuron therapeutic evaluation treatment outcomes

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NOX4 exacerbates Parkinson's disease pathology by promoting neuronal ferroptosis and neuroinflammation

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Neural Regeneration Research 2025年第7期20卷 2038-2052页

作者： Zhihao Lin Changzhou Ying Xiaoli Si Naijia Xue Yi Liu Ran zheng Ying Chen Jiali Pu Baorong zhang Department of Neurology The Second Affiliated HospitalZhejiang University School of MedicineHangzhouZhejiang ProvinceChina

Parkinson's disease is primarily caused by the loss of dopaminergic neurons in the substantia nigra ***,a novel form of regulated cell death characterized by iron accumulation and lipid peroxidation,plays a vital role in the death of dopaminergic ***,the molecular mechanisms underlying ferroptosis in dopaminergic neurons have not yet been completely *** oxidase 4 is related to oxidative stress,however,whether it regulates dopaminergic neuronal ferroptosis remains *** aim of this study was to determine whether NADPH oxidase 4 is involved in dopaminergic neuronal ferroptosis,and if so,by what *** found that the transcriptional regulator activating transcription factor 3 increased NADPH oxidase 4 expression in dopaminergic neurons and astrocytes in an 1-methyl-4-phenyl-1,2,3,6 tetrahydropyridine-induced Parkinson's disease *** oxidase 4 inhibition improved the behavioral impairments observed in the Parkinson's disease model animals and reduced the death of dopaminergic ***,NADPH oxidase 4 inhibition reduced lipid peroxidation and iron accumulation in the substantia nigra of the Parkinson's disease model ***,we found that NADPH oxidase 4 interacted with activated protein kinase Cαto prevent ferroptosis of dopaminergic ***,by lowering the astrocytic lipocalin-2 expression,NADPH oxidase 4 inhibition reduced 1-methyl-4-phenyl-1,2,3,6 tetrahydropyridine-induced *** findings demonstrate that NADPH oxidase 4 promotes ferroptosis of dopaminergic neurons and neuroinflammation,which contribute to dopaminergic neuron death,suggesting that NADPH oxidase 4 is a possible therapeutic target for Parkinson's disease.

关键词： dopaminergic neuron ferroptosis NADPH oxidase 4(NOX4) neuroinflammation Parkinson's disease

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兔模型行经皮椎体成形术和经皮椎体后凸成形术术后腰椎生物力学功能改变的实验研究

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中国现代医学杂志 2015年第19期25卷 26-30页

作者：吴宏胡世平汤发强郑建章郭徽灵福建医科大学省立临床医学院福建省立医院骨一科福建福州350001

目的研究在兔骨质疏松模型中行经皮椎体成形术(PVP)和经皮椎体后凸成形术(PKP)对模型腰椎生物力学功能的影响。方法将新西兰大白兔通过切除双侧卵巢建立骨质疏松模型,造模成功58例,分为两组,A组29只,予以行PVP手术,B组29只,予以行PKP手... 详细信息

目的研究在兔骨质疏松模型中行经皮椎体成形术(PVP)和经皮椎体后凸成形术(PKP)对模型腰椎生物力学功能的影响。方法将新西兰大白兔通过切除双侧卵巢建立骨质疏松模型,造模成功58例,分为两组,A组29只,予以行PVP手术,B组29只,予以行PKP手术,观察两组模型术后椎体弯曲和压缩实验最大载荷量的变化,椎体术后平均高度和矢状面Cobb角的改变。结果两组兔模型行PKP和PVP术后,椎体承载压力能力得到了显著提升,差异较手术前具有显著的统计学意义(P0.05),B组模型18个月后手术椎体前缘平均高度由术前(38.81±8.12)%恢复至(80.17±16.38)%,矢状面Cobb角由术前(30.13±8.75)°恢复至(8.69±3.45)°。B组椎体术后高度测量值和Cobb角的变化与A组相比,差异具有统计学差异(P<0.05)。A组6个月后手术部位邻近椎体新发骨折率为20.69%,12个月后为24.14%,18个月后为31.03%;B组6和12个月后均为3.45%,18个月后为6.90%,在新发邻椎骨折方面,PKP优于PVP(P<0.05)。结论 PKP可更好地改善后凸角度,更显著地改善椎体承载压力的能力;减少新发邻近椎体骨折的发生率,但尚需更多设计严谨的随机对照研究加以证实。

关键词：椎体成形椎体后凸成形生物力学功能椎体骨折兔模型

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Effects of Bifidobacterium lactis BLa80 on fecal and mucosal flora and stem cell factor/c-kit signaling pathway in simulated microgravity rats

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World Journal of Gastroenterology 2025年第1期31卷 93-109页

作者： Ping zhang Ying Zhu Pu Chen Tong Zhou Zhe-Yi Han Jun Xiao jian-Feng Ma Wen Ma Peng Zang Ying Chen Graduate School Hebei North UniversityZhangjiakou 075000Hebei ProvinceChina Key Laboratory of Aerospace Nutrition and Food Engineering China Astronaut Research and Training CenterBeijing 100094China Department of Gastroenterology The Air Force Medical CenterBeijing 100142China Department of Blood Transfusion Air Force Medical CenterBeijing 100142China

BACKGROUND Simulated microgravity environment can lead to gastrointestinal motility *** pathogenesis of gastrointestinal motility disorders is closely related to the stem cell factor(SCF)/c-kit signaling pathway associated with intestinal flora and Cajal stromal ***,intestinal flora can also affect the regulation of SCF/c-kit signaling pathway,thus affecting the expression of Cajal stromal *** cells are the pacemakers of gastrointestinal *** To investigate the effects of Bifidobacterium lactis(***)BLa80 on the intestinal flora of rats in simulated microgravity and on the gastrointestinal motility-related SCF/c-kit *** The internationally recognized tail suspension animal model was used to simulate the microgravity environment,and 30 rats were randomly divided into control group,tail suspension group and drug administration tail suspension group with 10 rats in each group for a total of 28 *** tail group was given *** BLa80 by intragastric administration,and the other two groups were given water intragastric administration,the concentration of intragastric administration was 0.1 g/mL,and each rat was 1 mL/***&eosin staining was used to observe the histopathological changes in each segment of the intestine of each group,and the expression levels of SCF,c-kit,extracellular signal-regulated kinase(ERK)and p-ERK in the gastric antrum of each group were detected by Western blotting and *** fecal flora and mucosal flora of rats in each group were detected by 16S *** Simulated microgravity resulted in severe exfoliation of villi of duodenum,jejunum and ileum in rats,marked damage,increased space between villi,loose arrangement,shortened columnar epithelium of colon,less folds,narrower mucosal thickness,reduced goblet cell number and crypts,and significant improvement after probiotic *** microgravity reduced the expressions of SCF and c-kit,and increased the express

关键词： Simulated microgravity Rat Intestinal flora Gastrointestinal motility Stem cell factor/c-kit signaling pathway

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松粉热模拟产物中饱和烃生物标志物分布

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沉积学报 1999年第4期17卷 644-650页

作者：吉利明孟仟祥郑建京张文正徐雁前王少飞中国科学院兰州地质研究所兰州730000 长庆石油勘探开发研究院西安710000

松粉和高岭土混合样品热模拟残渣氯仿抽提物饱和烃馏份中的生物标志物主要是正构烷烃系列化合物,其次是类异戊二烯烷烃、甾族系列、三环二萜烷和五环三萜烷系列化合物,检测出少量烷基环己烷系列、异构烷烃系列和类胡萝卜烷系列生物标志... 详细信息

松粉和高岭土混合样品热模拟残渣氯仿抽提物饱和烃馏份中的生物标志物主要是正构烷烃系列化合物,其次是类异戊二烯烷烃、甾族系列、三环二萜烷和五环三萜烷系列化合物,检测出少量烷基环己烷系列、异构烷烃系列和类胡萝卜烷系列生物标志物。各类地球化学指标显示松粉热解排烃呈现150℃～250℃和300℃～400℃两个高峰期,前期生烃物质可能来源于孢粉质和孢粉壁中的类脂物,后期主要来源于孢粉外壁中的孢粉素,后期的排烃量大于前期。正构烷烃在原样和各温度点样品中均可检出,碳数分布为nC14～nC36,以nC23以后高碳数占优势为特征。类异戊二烯烃碳数分布为C18和C21,植烷优势明显。甾族系列标志物检出于500℃以前样品,C29和C28甾烷相对丰度最高,且以C29>C28和ααα20R>ααα20S为特征。三环二萜烷和五环三萜烷在低于250℃和高于400℃的样品中可明显检出。

关键词：松粉热模拟残渣抽提物饱和烃生物标志物

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