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Fe<sup>2+</sup>Coupled with Vitamin c (Vc) Can Enhance Glucose Metabolism and Decrease Blood Glucose Levels of Alloxan-Induced Diabetic Mice

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Food and Nutrition Sciences 2012年第11期3卷 1586-1594页

作者： Huihua Zhen Hui Chen zhenle tian Zhicai Zhang Jiangsu Alphay Bio-technology Co. Ltd. Nantong China School of Food science and Biological Engineering Jiangsu University Zhenjiang China.

That FeSO4 not FeCl3 can reduce the blood glucose levels of alloxan-induced diabetes mice has been reported in previous research. This study explained the cause of difference in activity of two different iron ions on diabetic mice based on glucose consumption (GC). FeSO4, FeCl3, Vitamine c (Vc), FeSO4 + Vc, metformin were administrated to the alloxan induced-diabetic mice, respectively. After administrated, serum glucose, fructosaminr, insulin, triglyceride, total cholesterol, total iron and Fe2+ levels and GC of liver in vivo were analyzed, respectively. In vitro, effect of different iron ions coupled with Vc or streptozotocin on GC of liver of diabetic mice of model group were analyzed. The body weights and serum insulin levels of Fe2+ and Fe2+ + Vc treated diabetic mice notably increased. The serum glucose, fructosamine, triglyceride and total cholesterol levels were significantly decreased, whereas serum total iron and Fe2+ levels and GC in liver were increased in the Fe2+, Vc and Fe2+ + Vc groups compared with in the model groups. In addition, hardly change of serum insulin level was caused by Fe2+, Vc and Fe2+ + Vc treatment. However, the similar resultst did not obtain a Fe3+ treated. Further, liver’s GC of untreated-diabetic mice was lower than of normal mice and significantly increased after Fe2+ not Fe3+ added to the reaction resolution in vitro, and further increased when Fe2+ and vitamin c (Vc) synchronously added to the reaction system, however, decreased when Fe2+ and Streptozotocin were added synchronously to the reaction resolution. It is suggested that iron coupled with reducer can enhance the glucose metabolism to eventually achieve to controlling blood glucose levels.

关键词： Glucose Metabolism Glucose Consumption FeSOsub>4 Oxidant Stress Vc

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Optimization of enzyme assisted extraction of polysaccharides from Ganoderma lucidum

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Engineering Sciences 2014年第1期12卷 17-20页

作者： Xu Chunhua tian zhenle Zhang Chenju Yu Xiaobing Zheng Huihua Jiangsu Alphay Biological Technology Co. Ltd.

In the present work,an enzyme assisted extraction method is used to isolate crude polysaccharides from Ganoderma lucidum. The isolating effect was optimized with orthographic graph statistic method with three levels and four independent variables. Complex enzyme,extraction temperature,extraction time and extraction pH were combined to obtain the best possible combination to get maximum amount of extract and crude polysaccharides yield. The optimum extraction conditions were:complex enzyme amount of 3 %(w/v),extraction temperature at 45 ℃,extraction time of 3 h and extraction pH at 7. Under these conditions,the experimental amount of extract is 8.9 % and the yield of crude polysaccharides is 1.1 %,which are in close agreement with the value predicted by the model.

关键词： Ganoderma lucidum enzyme assisted extraction polysaccharides

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Comparison of the antitumor activity of polysaccharides extracted by boiling water and enzyme assistance from Ganoderma lucidum

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Engineering Sciences 2014年第1期12卷 21-23页

作者： Xu Chunhua Zhang Chenju tian zhenle Zheng Huihua Yu Xiaobing Jiangsu Alphay Biological Technology Co. Ltd.

Polysaccharides are the most important pharmacologically active constituents of Ganoderma lucidum. In this work, polysaccharides were extracted from Ganoderma lucidum with boiling water method and enzyme assisted method. The human liver hepatocellular carcinoma cell line HepG2 was used to compare the an- titumor effect of the two kinds of extraction with 3-（4, 5-dimethylthiazol-2-yl）-2,5-diphenyltetrazolium bromide （MTT） test. Both of these two kinds of Ganoderma lucidum polysaccharides reduced cell viability of cancer cell HepG2 in a dose and time-dependent manner. At low concentrations, there was no significant difference in the effectiveness of L 1 and L2; while at concentrations over 0.8 ug/mL, the difference in the effectiveness of L2 in comparison to L1 became significant. At the concentrations of 3.2 ug/mL, the cancer cells were almost killed in 2 d.

关键词： antitumor Ganoderma lucidum enzyme assisted extraction polysaccharides

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气相色谱与紫外分光光度法评价石油烃类污染物的微生物降解过程

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分析化学 2006年第3期34卷 343-346页

作者：田贞乐朱丽华吴映辉唐和清华中科技大学化学系华中科技大学化学系武汉430074

采用联合使用毛细管气相色谱法和紫外可见分光光度法,系统地研究了一种混合微生物体系对柴油的降解过程。研究结果表明,这两种简单方法的简单组合,弥补了单一方法的局限性,能够监测石油烃类污染物总体和主要组分的降解程度,实现对烷烃... 详细信息

采用联合使用毛细管气相色谱法和紫外可见分光光度法,系统地研究了一种混合微生物体系对柴油的降解过程。研究结果表明,这两种简单方法的简单组合,弥补了单一方法的局限性,能够监测石油烃类污染物总体和主要组分的降解程度,实现对烷烃和芳香烃降解的分别评价。同时还表明,本实验采用的混合微生物体系对柴油具有很强的降解能力。

关键词：微生物降解石油烃类污染物气相色谱法紫外可见分光光度法

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Study on the Method of Determining Total Ganoderma lucidum Triterpenoids by Using Oleanolic Acid as Standard Sample

Study on the Method of Determining Total Ganoderma lucidum T...

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第五届国际药用菌大会

作者： zhenle tian HUIHUA ZHENG WEIJIE WU CHUNHUA XU QIAN YANG E CHEN & GUOLIANG CHEN~* Jiangsu Alphay Bio-technology Co. Ltd Nantong 226009 China

＜正＞Triterpenoids are one of important bioactive components of Ganoderma *** objective of this paper is to study on the feasibility of determining total triterpenoids from *** by using oleanolic acid as standard sample and establish the test *** result shows that oleanolic acid can be used as standard sample to determine total *** *** triterpenoids,oleanlic acid and ursolic acid have the same maximum absorption wavelength at *** working curve of oleanlic acid was in good linearity in the range of 42.24-253.4μg（r=0.9993）.The average recovery was 99.92%,and RSD was 1.51%（n=5）.The test method is simple,accurate,with good repeatability and high precision.

关键词： oleanolic acid standard sample Ganoderma lucidum triterpenoids quantitative analysis

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灰葡萄孢菌BcGLS基因的克隆、生物信息学分析及逆境胁迫下转录表达分析

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食品与发酵工业 2024年第18期50卷 169-176,I0001,I0002页

作者：孟利娟昝新艺杨雨蒙张子盈崔凤杰田贞乐江苏大学食品与生物工程学院江苏镇江212013 江苏安惠生物科技有限公司江苏南通226009

β-1,3-葡聚糖合成酶(β-1,3-glucan synthase,GLS)催化合成的细胞壁核心组分β-1,3-葡聚糖对真菌的生存和毒力至关重要,该酶是研发抗菌药物的重要作用靶点。为了了解β-1,3-葡聚糖合成酶基因(BcGLS)在灰葡萄孢菌生存和侵染进程中的功能... 详细信息

β-1,3-葡聚糖合成酶(β-1,3-glucan synthase,GLS)催化合成的细胞壁核心组分β-1,3-葡聚糖对真菌的生存和毒力至关重要,该酶是研发抗菌药物的重要作用靶点。为了了解β-1,3-葡聚糖合成酶基因(BcGLS)在灰葡萄孢菌生存和侵染进程中的功能,该研究通过克隆获得BcGLS全长序列,序列全长7137 bp,编码1932个氨基酸,生物信息学分析结果显示,其编码蛋白(BcGLSp)理论相对分子质量为220.05 kDa,理论等电点为7.97;亚细胞预测其定位于细胞膜,存在17个跨膜结构,不存在信号肽,为非分泌蛋白;含有176个磷酸化位点,为亲水性蛋白。保守结构域分析结果表明,BcGLSp含有一个β-1,3-葡聚糖合成酶结构域和一个β-1,3-葡聚糖合成酶亚基FKS1,属于葡聚糖合成酶超家族。系统进化分析表明,灰葡萄孢菌BcGLS与植物致病菌如山茶叶杯菌、景天白粉菌等的葡聚糖合成酶亲缘关系近。不同逆境胁迫条件(氯化钠、十二烷基硫酸钠、过氧化氢)显著抑制灰葡萄孢菌菌丝生长,实时定量PCR进一步分析显示BcGLS在不同非生物胁迫条件下均上调表达,表明BcGLS基因的转录表达与环境压力密切相关。该研究为深入探讨BcGLS在灰葡萄孢菌生存和侵染进程中的基因功能和灰葡萄孢菌的新型防治策略提供理论材料和实践依据。

关键词：灰葡萄孢菌 BcGLS 生物信息学逆境胁迫转录表达

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Research status and prospects of the fractal analysis of metal material surfaces and interfaces

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International Journal of Minerals,Metallurgy and Materials 2025年第1期32卷 20-38页

作者： Qinjin Dai Xuefeng Liu Xin Ma Shaojie tian Qinghe Cui Beijing Advanced Innovation Center for Materials Genome Engineering University of Science and Technology BeijingBeijing 100083China Beijing Laboratory of Metallic Materials and Processing for Modern Transportation University of Science and Technology BeijingBeijing 100083China Laboratory for Advanced Materials Processing of Ministry of Education University of Science and Technology BeijingBeijing 100083China School of Mechanical and Electrical Engineering Xinjiang Institute of EngineeringUrumqi 830023China

As a mathematical analysis method,fractal analysis can be used to quantitatively describe irregular shapes with self-similar or self-affine *** analysis has been used to characterize the shapes of metal materials at various scales and *** methods make it difficult to quantitatively describe the relationship between the regular characteristics and properties of metal material surfaces and ***,fractal analysis can be used to quantitatively describe the shape characteristics of metal materials and to establish the quantitative relationships between the shape characteristics and various properties of metal *** the perspective of two-dimensional planes and three-dimensional curved surfaces,this paper reviews the current research status of the fractal analysis of metal precipitate interfaces,metal grain boundary interfaces,metal-deposited film surfaces,metal fracture surfaces,metal machined surfaces,and metal wear *** relationship between the fractal dimensions and properties of metal material surfaces and interfaces is *** from three perspectives of fractal analysis,namely,research scope,image acquisition methods,and calculation methods,this paper identifies the direction of research on fractal analysis of metal material surfaces and interfaces that need to be *** is believed that revealing the deep influence mechanism between the fractal dimensions and properties of metal material surfaces and interfaces will be the key research direction of the fractal analysis of metal materials in the future.

关键词： metal material surfaces and interfaces fractal analysis fractal dimension homogeneity

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Review of precipitation strengthening in ultrahigh-strength martensitic steel

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International Journal of Minerals,Metallurgy and Materials 2025年第2期32卷 256-269页

作者： Zhihao tian Chunlei Shang Chaolei Zhang Xiaoye Zhou Honghui Wu Shuize Wang Guilin Wu Junheng Gao Jiaming Zhu Xinping Mao Institute for Carbon Neutrality University of Science and Technology BeijingBeijing 100083China Institute of Steel Sustainable Technology Liaoning Academy of MaterialsShenyang 110004China Department of Materials Science and Engineering Shenzhen MSU-BIT UniversityShenzhen 518172China Institute of Materials Intelligent Technology Liaoning Academy of MaterialsShenyang 110004China School of Civil Engineering Shandong UniversityJinan 250061China

Martensite is an important microstructure in ultrahigh-strength steels,and enhancing the strength of martensitic steels often involves the introduction of precipitated phases within the martensitic *** considerable research efforts devoted to this area,a systematic summary of these advancements is *** review focuses on the precipitates prevalent in ultrahigh-strength martensitic steel,primarily carbides(e.g.,MC,M_(2)C,and M_(3)C)and intermetallic compounds(e.g.,Ni Al,Ni_(3)X,and Fe_(2)Mo).The precipitation-strengthening effect of these precipitates on ultrahigh-strength martensitic steel is discussed from the aspects of heat treatment processes,microstructure of precipitate-strengthened martensite matrix,and mechanical ***,a perspective on the development of precipitation-strengthened martensitic steel is presented to contribute to the advancement of ultrahigh-strength martensitic *** review highlights significant findings,ongoing challenges,and opportunities in the development of ultrahigh-strength martensitic steel.

关键词： ultrahigh-strength martensitic steel precipitation strengthening mechanical property carbide intermetallic compound

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Nanocarrier-mediated siRNA delivery:a new approach for the treatment of traumatic brain injury-related Alzheimer's disease

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Neural Regeneration Research 2025年第9期20卷 2538-2555页

作者： Jie Jin Huajing Zhang Qianying Lu Linqiang tian Sanqiao Yao Feng Lai Yangfan Liang Chuanchuan Liu Yujia Lu Sijia tian Yanmei Zhao Wenjie Ren Institute of Disaster and Emergency Medicine Tianjin UniversityTianjinChina Key Laboratory for Disaster Medicine Technology TianjinChina Henan Medical Key Laboratory for Research of Trauma and Orthopedics The Third Affiliated Hospital of Xinxiang Medical UniversityXinxiangHenan ProvinceChina Clinical Medical Center of Tissue Engineering and Regeneration Xinxiang Medical UniversityXinxiangHenan ProvinceChina Institutes of Health Central Plain Xinxiang Medical UniversityXinxiangHenan ProvinceChina School of Public Health Xinxiang Medical UniversityXinxiangHenan ProvinceChina

Traumatic brain injury and Alzheimer's disease share pathological similarities,including neuronal loss,amyloid-βdeposition,tau hyperphosphorylation,blood-brain barrier dysfunction,neuroinflammation,and cognitive ***,traumatic brain injury can exacerbate Alzheimer's disease-like pathologies,potentially leading to the development of Alzheimer's *** offer a potential solution by facilitating the delive ry of small interfering RNAs across the blood-brain barrier for the targeted silencing of key pathological genes implicated in traumatic brain injury and Alzheimer's disease.U nlike traditional approaches to neuro regeneration,this is a molecula r-targeted strategy,thus avoiding non-specific drug *** review focuses on the use of nanocarrier systems for the efficient and precise delive ry of siRNAs,discussing the advantages,challenges,and future *** principle,siRNAs have the potential to target all genes and non-targetable protein s,holding significant promise for treating various *** the various therapeutic approaches currently available for neurological diseases,siRNA gene silencing can precisely"turn off"the expression of any gene at the genetic level,thus radically inhibiting disease progression;however,a significant challenge lies in delivering siRNAs across the blood-brain *** have received increasing attention as an innovative drug delive ry tool fo r the treatment of brain *** are considered a potential therapeutic strategy with the advantages of being able to cross the blood-brain barrier,targeted drug delivery,enhanced drug stability,and multifunctional *** use of nanoparticles to deliver specific modified siRNAs to the injured brain is gradually being recognized as a feasible and effective *** this strategy is still in the preclinical exploration stage,it is expected to achieve clinical translation in the future,creating a new field of molecular tar

关键词： blood-brain barrier cognitive dysfunction exosomes gene silencing immunotherapy inorganic nanomaterials liposome nanoparticles neuroinflammation polymer nanoparticles stem cells

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A novel active-passive protection strategy endows carbonyl iron with excellent intelligent anti-corrosion and microwave absorption dual functional characteristics

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Nano Research 2025年第1期18卷 487-500页

作者： Wei tian Quanyuan Feng Linbo Zhang Yinfan Liu Xian Jian Longjiang Deng Institute of Microelectronics School of Information Science and TechnologySouthwest Jiaotong UniversityChengdu 611756China National Engineering Researching Centre of Electromagnetic Radiation Control Materials Key Laboratory of Multi-Spectral Absorbing Materials and Structures of Ministry of EducationState Key Laboratory of Electronic Thin Films and Integrated DevicesSchool of Electronic Science and EngineeringUniversity of Electronic Science and Technology of ChinaChengdu 611731China School of Materials and Energy University of Electronic Science and Technology of ChinaChengdu 611731China The Yangtze Delta Region Institute(Huzhou)&School of Electronic Science and Engineering University of Electronic Science and Technology of ChinaHuzhou 313001China

Carbonyl iron absorbers(CI)face significant challenges in practical applications,such as corrosion,interface bonding failure,detachment,and high maintenance ***,we have developed intelligent self-healing technology based on proactive/passive mechanisms via in situ synthesis of self-healing factors(polydopamine/benzotriazole(PDA/BTA))and physical barrier layers(SiO_(2)/1,1,1,3,3,3-hexamethyl disilazane,SiO_(2)/HMDS)to enhance corrosion resistance,while also being compatible with efficient microwave absorption *** unique multiscale structure gives full play to the utilization of the roles of each functional layer,including the intelligent self-healing features of PDA/BTA,physical shielding and spatial confinement characteristics of SiO_(2)/HMDS,and magnetic-dielectric synergistic mechanism resulted from the good impedance matching characteristics,the conduction loss,the interfacial polarization loss and natural *** asfabricated composites achieved an exceptional minimum reflection loss value of-55.4 dB at 10.7 GHz and the effective absorption band of 7.6 ***,it still exhibits obvious self-healing and corrosion resistance characteristics after 360 h corrosion treatment,ascribed to the self-healing mechanism of PDA/BTA and the blocking intervention effect of SiO_(2)/*** work is considered to pave the way for the synthesis of high-performance magnetic absorbers,especially in enhancing their intelligent self-healing ability in corrosive environments.

关键词： microwave absorption intelligent self-healing technology carbonyl iron multiscale structure magneticdielectric synergistic mechanism

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