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Decoding the nexus:branched-chain amino acids and their connection with sleep,circadian rhythms,and cardiometabolic health

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Neural Regeneration Research 2025年第5期20卷 1350-1363页

作者： Hui li Laurent Seugnet Department of Neurology Xijing HospitalXi’anShaanxi ProvinceChina Centre de Recherche en Neurosciences de Lyon Integrated Physiology of the Brain Arousal Systems(WAKING)UniversitéClaude Bernard Lyon 1INSERM U1028CNRS UMR 5292BronFrance

The sleep-wake cycle stands as an integrative process essential for sustaining optimal brain function and,either directly or indirectly,overall body health,encompassing metabolic and cardiovascular *** the heightened metabolic activity of the brain,there exists a considerable demand for nutrients in comparison to other *** these,the branched-chain amino acids,comprising leucine,isoleucine,and valine,display distinctive significance,from their contribution to protein structure to their involvement in overall metabolism,especially in cerebral *** the first amino acids that are released into circulation post-food intake,branched-chain amino acids assume a pivotal role in the regulation of protein synthesis,modulating insulin secretion and the amino acid sensing pathway of target of ***-chain amino acids are key players in influencing the brain's uptake of monoamine precursors,competing for a shared *** their involvement in protein synthesis,these amino acids contribute to the metabolic cycles ofγ-aminobutyric acid and glutamate,as well as energy ***,they impact GABAergic neurons and the excitation/inhibition *** rhythmicity of branchedchain amino acids in plasma concentrations,observed over a 24-hour cycle and conserved in rodent models,is under circadian clock *** mechanisms underlying those rhythms and the physiological consequences of their disruption are not fully *** sleep,obesity,diabetes,and cardiovascular diseases can elevate branched-chain amino acid concentrations or modify their oscillatory *** mechanisms driving these effects are currently the focal point of ongoing research efforts,since normalizing branched-chain amino acid levels has the ability to alleviate the severity of these *** this context,the Drosophila model,though underutilized,holds promise in shedding new light on these *** findings indicate its po

关键词： branched-chain amino acids cardiovascular health circadian clock drosophila insulin metabolism sleep γ-aminobutyric acid

Blood diagnostic and prognostic biomarkers in amyotrophic lateral sclerosis

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Neural Regeneration Research 2025年第9期20卷 2556-2570页

作者： Yongting Lv Hongfu li Department of Neurology Second Affiliated HospitalZhejiang University School of MedicineHangzhouZhejiang ProvinceChina Department of Medical Genetics and Center for Rare disease Second Affiliated HospitalZhejiang University School of MedicineHangzhouZhejiang ProvinceChina Nanhu Brain-Computer Interface Institute HangzhouZhejiang Province

Amyotrophic lateral sclerosis is a devastating neurodegenerative disease for which the current treatment approaches remain severely *** principal pathological alterations of the disease include the selective degeneration of motor neurons in the brain,brainstem,and spinal cord,as well as abnormal protein deposition in the cytoplasm of neurons and glial *** biological markers under extensive scrutiny are predominantly located in the cerebrospinal fluid,blood,and even *** these biomarke rs,neurofilament proteins and glial fibrillary acidic protein most accurately reflect the pathologic changes in the central nervous system,while creatinine and creatine kinase mainly indicate pathological alterations in the peripheral nerves and *** light chain levels serve as an indicator of neuronal axonal injury that remain stable throughout disease progression and are a promising diagnostic and prognostic biomarker with high specificity and ***,there are challenges in using neurofilament light chain to diffe rentiate amyotrophic lateral sclerosis from other central nervous system diseases with axonal *** fibrillary acidic protein predominantly reflects the degree of neuronal demyelination and is linked to non-motor symptoms of amyotrophic lateral sclerosis such as cognitive impairment,oxygen saturation,and the glomerular filtration *** DNA-binding protein 43,a pathological protein associated with amyotrophic lateral sclerosis,is emerging as a promising biomarker,particularly with advancements in exosome-related *** is currently lacking for the value of creatinine and creatine kinase as diagnostic markers;however,they show potential in predicting disease *** the vigorous progress made in the identification of amyotrophic lateral sclerosis biomarkers in recent years,the quest for definitive diagnostic and prognostic biomarke rs remains a formidable *** review summarizes the lat

关键词： amyotrophic lateral sclerosis biomarker blood biomarkers diagnosis glial fibrillary acidic protein neurofilament light chain prognosis TAR DNA-binding protein 43

Experimental Study on Thermal Management of Cylindrical li-ion Battery with Flexible Microchannel Plates

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Journal of Thermal Science 2020年第4期29卷 1001-1009页

作者： WEI liting JIA li AN Zhoujian DANG chao Institute of Thermal Engineering School of MechanicalElectronic and Control EngineeringBeijing Jiaotong UniversityBeijing 100044China Beijing Key Laboratory of Flow and Heat Transfer of Phase Changing in Micro and Small Scale Beijing 100044China

A novel thermal management system of cylindrical li-ion battery with the liquid cooling in flexible microchannel plate was established in the study. The experiments were conducted with R141 b in flexible microchannel plates. The cooling system with the flexible aluminum microchannels can effectively transfer heat from battery to the cooling refrigerant R141 b based on flow boiling. A battery module with five cells along flow channel was chosen to study the effects of contact surface area and mass flux on the thermal performance and electrochemical characteristics in the experiments. Three types of structure with different contact areas were studied and their performances were compared with the experiments without cooling structures. The experiments were carried out at the same discharge rate with the inlet mass flow rates of 0–10 kg/h. For the inlet mass flow rate of 5.98 kg/h, the surface temperature and temperature uniformity of battery were the best, and the output voltage and capacity of batteries were higher than those under other mass flow rates. With given inlet mass flow rates, the five series cells exhibited different electrochemical performances, including output voltage and discharge capacity, due to the different refrigerant flow states in the microchannels. Finally, an optimal design was presented with thermal performances, macroscopic electrochemical characteristics, inlet mass flow rates and cooling performance taken into consideration.

关键词： thermal management li-ion battery flexible microchannels contact area

The Mechanism of Heating Rate on the Secondary Recrystallization Evolution in Grain Oriented Silicon Steel

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Journal of Wuhan University of Technology(Materials Science) 2025年第1期40卷 275-282页

作者： GAO Qian li Jun WANG Xianhui CAO Laifu GONG Jian li Bo Central Iron and Steel Research Institute Group Beijing 100081China Shougang Zhixin Electromagnetic Material R&D(Beijing)Co. Ltd.Beijing 101300China Beijing Shougang Co. Ltd.Qian’an 064404China

Grain-oriented silicon steels were prepared at different heating rates during high temperature annealing,in which the evolution of magnetic properties,grain orientations and precipitates were *** illustrate the Zener factor,the diameter and number density of precipitates of interrupted testing samples were statistically *** effect of precipitate ripening on the Goss texture and magnetic property was *** indicated that the trend of Zener factor was similar under different heating rates,first increasing and then decreasing,and that the precipitate maturing was greatly inhibited as the heating rate *** recrystallization was developed at the temperature of 1010℃when a heating rate of 5℃/h was used,resulting in Goss,Brass and{110}oriented grains growing abnormally and a magnetic induction intensity of ***,increasing the heating rate to 20℃/h would inhibit the development of undesirable oriented grains and obtain a sharp Goss ***,when the heating rate was extremely fast,such as 40℃/h,poor secondary recrystallization was developed with many island grains,corresponding to a decrease in magnetic induction intensity to 1.87 *** a suitable heating rate of 20℃/h,the sharpest Goss texture and the highest magnetic induction of 1.94 T with an onset secondary recrystallization temperature of 1020℃were found among the experimental variables in this *** heating rate affected the initial temperature of secondary recrystallization by controlling the maturation of precipitates,leading to the deviation and dispersion of Goss texture,thereby reducing the magnetic properties.

关键词： high temperature annealing heating rate secondary recrystallization grain oriented silicon steel

Cell polarization in ischemic stroke: molecular mechanisms and advances

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Neural Regeneration Research 2025年第3期20卷 632-645页

作者： Yuanwei li Xiaoxiao Xu Xuan Wu Jiarui li Shiling Chen Danyang Chen Gaigai li Zhouping Tang Department of Neurology Tongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubei ProvinceChina

Ischemic stroke is a cerebrovascular disease associated with high mortality and disability rates. Since the inflammation and immune response play a central role in driving ischemic damage, it becomes essential to modulate excessive inflammatory reactions to promote cell survival and facilitate tissue repair around the injury site. Various cell types are involved in the inflammatory response, including microglia, astrocytes, and neutrophils, each exhibiting distinct phenotypic profiles upon stimulation. They display either proinflammatory or anti-inflammatory states, a phenomenon known as ‘cell polarization.’ There are two cell polarization therapy strategies. The first involves inducing cells into a neuroprotective phenotype in vitro, then reintroducing them autologously. The second approach utilizes small molecular substances to directly affect cells in vivo. In this review, we elucidate the polarization dynamics of the three reactive cell populations(microglia, astrocytes, and neutrophils) in the context of ischemic stroke, and provide a comprehensive summary of the molecular mechanisms involved in their phenotypic switching. By unraveling the complexity of cell polarization, we hope to offer insights for future research on neuroinflammation and novel therapeutic strategies for ischemic stroke.

关键词： astrocyte polarization immune regulation inflammation ischemic injury microglia polarization neutrophil polarization signaling pathways stroke

An NIR-Ⅱ-emissive Ru(Ⅱ) metallacycle for efficient and safe immunotherapy

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Science China Chemistry 2025年第1期68卷 5-7页

作者： Chonglu li Jianbo Zhan Biao Dong Institute of Health Inspection and Testing Hubei Provincial Center for Disease Control and Prevention State Key Laboratory on Integrated Optoelectronics College of Electronic Science and Engineering Jilin University

Immunotherapy, as a groundbreaking cancer treatment, has gained considerable attention for its utilization of the body’s immune system to combat tumors [1]. This therapy induces tumor cell apoptosis, triggering a sustained anti-tumor immune response and effectively preventing tumor recurrence and metastasis [2]. The fundamental principle lies in inducing tumor cell death through specific treatment modalities, leading to the release of a cascade of signaling molecules and antigens, thereby mobilizing the immune system to actively identify and attack tumor cells [3].

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藜麦种子皂苷不同提取方法的比较研究

食品工业科技 2016年第21期37卷 216-221,227页

作者：冯焕琴徐雪风杨宏伟沈宝云胡静李朝周甘肃农业大学生命科学技术学院甘肃兰州730070 甘肃省作物遗传改良和种质创新重点实验室甘肃兰州730070 甘肃条山农林科学研究所甘肃白银730400

目的:比较藜麦种子皂苷的不同提取方法,确定最佳提取条件。方法:采用超声提取法、甲醇回流法和乙醇回流法三种不同方法,在单因素实验的基础上,通过正交实验确定最佳的提取温度、提取时间、提取液浓度和料液比。结果:藜麦种子皂苷提取的... 详细信息

目的:比较藜麦种子皂苷的不同提取方法,确定最佳提取条件。方法:采用超声提取法、甲醇回流法和乙醇回流法三种不同方法,在单因素实验的基础上,通过正交实验确定最佳的提取温度、提取时间、提取液浓度和料液比。结果:藜麦种子皂苷提取的最佳方法为超声提取法,最佳提取条件为在60℃温度,90%乙醇浓度,1∶15 g/m L的料液比条件下提取1 h,在此条件下皂苷含量为5.06 mg/g。结论:超声提取法适宜提取藜麦种子皂苷,该研究可为藜麦种子皂苷的提取开发利用提供理论依据和技术参考。

关键词：藜麦皂苷正交实验超声提取法甲醇回流法乙醇回流法

应变率成像技术监测化疗药物所致心脏毒性的研究

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中国医学装备 2018年第5期15卷 64-68页

作者：刘俊峰苏菁李朝喜李小娟河北北方学院附属第一医院超声科河北张家口075000 河北北方学院附属第一医院呼吸内科河北张家口075000

目的:探讨应变率成像(SRI)超声影像技术在评价化疗药物致乳腺癌患者左室心肌局部收缩及舒张功能影响中的优势。方法:选择90例经病理确诊的女性乳腺癌患者,经乳腺癌术后均采用辅助5-氟尿嘧啶+表阿霉素+环磷酰胺(FEC)方案化疗。采用自身... 详细信息

目的:探讨应变率成像(SRI)超声影像技术在评价化疗药物致乳腺癌患者左室心肌局部收缩及舒张功能影响中的优势。方法:选择90例经病理确诊的女性乳腺癌患者,经乳腺癌术后均采用辅助5-氟尿嘧啶+表阿霉素+环磷酰胺(FEC)方案化疗。采用自身对照研究对乳腺癌患者1~6周的6个化疗周期进行观察,分别于化疗前1 d及每周期化疗后第5 d行心肌酶学、常规超声心动图及应变率成像检测,并观察各指标变化情况。结果:随化疗药物累积量增加,应变率成像结果显示,第6个周期中部舒张压早起峰值应变率(SRe)、房缩期峰值应变率(SRa)、收缩期峰值应变率(SRs)与化疗前比较明显降低,差异有统计学意义(t=2.401,t=2.246,t=2.334;P<0.05)。化疗后第6个周期与化疗前各部位相比SRe显著性降低,差异有统计学意义(t=9.67,t=5.46,t=7.02,t=9.11,t=7.38,t=8.24;P<0.05);化疗后第6个周期与化疗前各部位相比SRa显著性降低,差异有统计学意义(t=7.21,t=6.21,t=9.48,t=8.72,t=5.47,t=7.39;P<0.05);第6个周期时SRs值明显降低(t=8.18,t=9.27,t=5.37,t=6.25,t=5.54,t=8.93;P<0.05)。常规超声心动图结果显示,化疗后与化疗前相比,第6周期时,患者的二尖瓣口舒张早期血流速度E峰与舒张晚期血流速度A峰比值(E/A)降低,差异有统计学意义(t=6.67;P<0.05);第6周期时谷草转氨酶(AST)、肌酸磷酸激酶同功酶(CPK-MB)、乳酸脱氢酶(LDH)、肌酸磷酸激酶(CPK)以及α-羟丁酸脱氢酶(α-HBDH)水平均显著升高(t=9.66,t=7.56,t=5.57,t=6.62,t=8.89;P<0.05)。结论:应变率成像技术能够早期较精确的反映化疗药物对乳腺癌患者左心功能的影响。

关键词：应变率成像化疗表阿霉素心脏毒性乳腺癌超声心动图

High-throughput screening of CO_(2) cycloaddition MOF catalyst with an explainable machine learning model

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Green Energy & Environment 2025年第1期10卷 132-138页

作者： Xuefeng Bai Yi li Yabo Xie Qiancheng Chen Xin Zhang Jian-Rong li Beijing Key Laboratory for Green Catalysis and Separation and Department of Chemical Engineering College of Materials Science&EngineeringBeijing University of TechnologyBeijing100124China

The high porosity and tunable chemical functionality of metal-organic frameworks(MOFs)make it a promising catalyst design ***-throughput screening of catalytic performance is feasible since the large MOF structure database is *** this study,we report a machine learning model for high-throughput screening of MOF catalysts for the CO_(2) cycloaddition *** descriptors for model training were judiciously chosen according to the reaction mechanism,which leads to high accuracy up to 97%for the 75%quantile of the training set as the classification *** feature contribution was further evaluated with SHAP and PDP analysis to provide a certain physical understanding.12,415 hypothetical MOF structures and 100 reported MOFs were evaluated under 100℃ and 1 bar within one day using the model,and 239 potentially efficient catalysts were *** them,MOF-76(Y)achieved the top performance experimentally among reported MOFs,in good agreement with the prediction.

关键词： Metal-organic frameworks High-throughput screening Machine learning Explainable model CO_(2)cycloaddition