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Accumulation of Zinc, Cadmium, and Lead in Four Populations of Sedum alfredii Growing on Lead/Zinc Mine Spoils

Journal of Integrative Plant Biology 2008年第6期50卷 691-698页

作者： dong-mei deng Jin-Chuan deng Jin-Tian Li Jun Zhang Min Hu Zhou Lin Bin Liao School of Life Sciences and State Key Laboratory of Biocontrol Sun Yat-sen University Guangzhou 510275 China Department of Biological and Chemical Engineering Guangxi University of Technology Liuzhou 545006 China Department of Environmental Science and Engineering Zhongkai Agrotechnical College Guangzhou 510225 China

Sedum alfredii Hance is a newly reported zinc （Zn） and cadmium （Cd） hyperaccumulator native to China. In this study, four populations of S. alfredii were collected from Yejiwei （YJW）, Jinchuantang （JCT） and Qiaokou （QK） lead （Pb）lZn mines located in Hunan Province as well as Quzhou （QZ） PblZn mine located in Zhejiang Province for exploring the intraspecies difference of this plant in metal accumulation. Although they grew in the PblZn spoils with relatively similar levels of Zn, Cd and Pb, remarkable differences among the four populations in tissue heavy metal concentrations were observed. The shoot Zn concentration of QZ population （11 116mglkg） was highest and nearly five times higher than that of the JCT population （1 930 mg/kg）. Furthermore, the shoot Cd concentration observed in the QZ population （1 090 mg/kg） was also highest and 144 times higher than that found in the JCT population （7.5 mg/kg）. As for Pb concentrations in the shoot of different populations, a fourfold difference between the highest and the lowest was also found. Such difference on metal accumulation was population-specific and may be significantly explained by differences in the soil properties such as pH, organic matter （OM）, and electrical conductivity （EC）. Taking biomass and metal concentration in plants into consideration, the QZ, YJW and QK populations may have high potential for Zn phytoremediation, the QZ population may have the highest potential in Cd phytoremediation, and the QK population may be the most useful in Pb phytoremediation.

关键词： heavy metal hyperaccumulation phytoremediation population Sedum alfredii

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Nonlocal effect on resonant radiation force exerted on semiconductor coupled quantum well nanostructures

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Chinese Physics B 2019年第6期28卷 349-356页

作者： Jin-Ke Zhang Ting-Ting Zhang Yu-Liang Zhang Guang-Hui Wang dong-mei deng Guangzhou Key Laboratory for Special Fiber Photonic Devices South China Normal UniversityGuangzhou 510006China Guangdong Provincial Key Laboratory of Nanophotonic Functional Materials and Devices South China Normal UniversityGuangzhou 510006China

Based on the microscopic nonlocal optical response theory, the resonant radiation force exerted on a semiconductorcoupled quantum well nanostructure(CQWN), induced by the nonlocal interaction between lasers and electrons in conduction bands, is investigated for two different polarized states. The numerical results show that the spatial nonlocality of optical response can cause a radiation shift(blue-shift) for the spectrum of the resonant radiation force, which is dependent on the CQWN width ratio, the barrier height, and polarized states sensitively. It is also confirmed that the resonant radiation force is steerable by the incident and polarized directions of incident light. This work may provide an advantageous method for detecting internal quantum properties of nanostructures, and open novel and raising possibilities for optical manipulation of nano-objects using laser-induced radiation force.

关键词： nonlocal effect resonant radiation force coupled quantum well

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Fungal mycobiome-mediated immune response:a non-negligible promoter in pancreatic oncogenesis and chemoresistance

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Cancer Drug Resistance 2023年第2期6卷 284-290页

作者： Yaling Jiang Valentina Donati Godefridus J.Peters Elisa Giovannetti dong mei deng Department of Preventive Dentistry Academic Center for Dentistry Amsterdam(ACTA)University of Amsterdam and Vrije Universiteit AmsterdamAmsterdam 1081 LANetherlands Department of Medical Oncology Amsterdam University Medical Centerslocation VUMCVrije Universiteit AmsterdamAmsterdam 1081 HVNetherlands Unit of Pathological Anatomy 2 Azienda Ospedaliero-Universitaria PisanaPisa 56100Italy Department of Biochemistry Medical University of GdanskGdansk 80-210Poland Fondazione Pisana per la Scienza ONLUS San Giuliano TermePisa 56017Italy

Pancreatic ductal adenocarcinoma(PDAC)is one of the most lethal cancers in humans due to late diagnosis and poor response to *** tumor microenvironment(TME)of PDAC is characterized by a distinctive,suppressive immune profile,which inhibits the protective functions of anti-tumor immunity and thereby contributes to PDAC ***,the study of Alam et *** for the first time that the intratumoral fungal mycobiome could contribute to the recruitment and activation of type 2 immune cells in the TME of PDAC via enhancing the secretion of a chemoattractant,interleukin(IL-)*** this article,we reviewed the important findings of this *** with our findings,we synthetically discussed the role of the fungal mycobiome in orchestrating the immune response and thereby modulating tumor progression.

关键词： Mycobiome pancreatic cancer chemoresistance interleukin 33 type 2 immune cells

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Adjuvant Chemotherapy May Not Be Necessary for Women with Stage IC1 Epithelial Ovarian Cancer

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Current Medical Science 2022年第1期42卷 192-200页

作者： dong-mei deng Qiu-yue LIAO Jie YANG Jing CHEN Ge CHEN Hua-lin BAI Bo ZHANG Ke-zhen LI Department of Gynecology and Obstetrics Tongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430030China

Objective:To determine whether adjuvant chemotherapy improves the prognoses in women with stage IC1 epithelial ovarian cancer(EOC).Methods:All eligible women diagnosed with stage IC1 EOC from 2003 to 2019 in Tongji Hospital were *** characteristics,tumor features,surgical types,and chemotherapeutic treatments were ***-meier analysis and Cox regression analysis were performed to evaluate progression-free survival(PFS)and overall survival(OS).

关键词： adjuvant chemotherapy epithelial ovarian cancer intraoperative rupture overall survival progression-free survival

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Engineered photonic spin Hall effect of Gaussian beam in antisymmetric parity-time metamaterials

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Chinese Physics B 2023年第9期32卷 255-260页

作者：刘露遥冯振校邓冬梅王光辉 Guangdong Provincial Key Laboratory of Nanophotonic Functional Materials and Devices South China Normal UniversityGuangzhou 510006China Guangzhou Key Laboratory for Special Fiber Photonic Devices South China Normal UniversityGuangzhou 510006China

A model of the photonic spin Hall effect(PSHE)in antisymmetric parity-time(APT)metamaterials with incidence of Gaussian beams is proposed *** derive the displacement expression of the PSHE in APT metamaterials based on the transport properties of Gaussian beams in positive and negative refractive index ***,detailed discussions are provided on the APT scattering matrix,eigenstate ratio,and response near exceptional points in the case of loss or *** contrast to the unidirectional non-reflection in parity-time(PT)symmetric systems,the transverse shift that arises from both sides of the APT structure is *** effectively adjusting the parameters of APT materials,we achieve giant displacements of the transverse ***,we present a multi-layer APT structure consisting of alternating left-handed and right-handed *** increasing the number of layers,Bragg oscillations can be generated,leading to an increase in resonant peaks in transverse *** study presents a new approach to achieving giant transverse shifts in the APT *** lays a theoretical foundation for the fabrication of related nano-optical devices.

关键词： antisymmetric parity-time photonic spin Hall effect Gaussian beam

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Microstructural evolution during the progressive transformation-induced plasticity effect in a Fe-0.1C-5Mnmedium manganese steel

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International Journal of Minerals,Metallurgy and Materials 2025年第2期32卷 369-379页

作者： mei Zhang Wenhao Li Yangfei Chen Yang Jiang Xiaofei Guo Han dong School of Materials Science and Engineering Shanghai UniversityShanghai 200444China State Key Laboratory of Advanced Special Steel Shanghai UniversityShanghai 200444China

The microstructural evolution of a cold-rolled and intercritical annealed medium-Mn steel(Fe-0.10C-5Mn)was investigated during uniaxial tensile ***-situ observations under scanning electron microscopy,transmission electron microscopy,and X-ray diffraction analysis were conducted to characterize the progressive transformation-induced plasticity process and associated fracture initiation *** findings were discussed with the local strain measurements via digital image *** results indicated that Lüders band formation in the steel was limited to 1.5%strain,which was mainly due to the early-stage martensitic phase transformation of a very small amount of the less stable large-sized retained austenite(RA),which led to localized stress concentrations and strain hardening and further retardation of *** small-sized RA exhibited high stability and progressively transformed into martensite and contributed to a stably extended Portevin-Le Chatelier *** volume fraction of RA gradually decreased from 26.8%to 8.2%prior to *** the late deformation stage,fracture initiation primarily occurred at the austenite/martensite and ferrite/martensite interfaces and the ferrite phase.

关键词： medium-Mn steel retained austenite progressive transformation-induced plasticity effect local strain fracture initiation

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从心智解读的源监控看《红楼梦》中的不可靠叙述

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湖南科技大学学报（社会科学版） 2017年第2期20卷 134-138页

作者：曾冬梅邓云华邵阳学院外语系湖南邵阳422000 湖南师范大学外国语学院湖南长沙410081

记录和追踪表征源的能力就是一种跟我们心智解读能力紧密相关的认知禀赋。从心智解读中的源监控出发,实例分析《红楼梦》中的不可靠叙述。在极不可靠到具有权威性的完全可靠的这条轴线上,叙述者的不可靠在极不可靠、具有有限特权的不可... 详细信息

记录和追踪表征源的能力就是一种跟我们心智解读能力紧密相关的认知禀赋。从心智解读中的源监控出发,实例分析《红楼梦》中的不可靠叙述。在极不可靠到具有权威性的完全可靠的这条轴线上,叙述者的不可靠在极不可靠、具有有限特权的不可靠和以可靠叙述为目的的不可靠之间徘徊。不可预测性和信息处理认知系统不可避免的规范性之间的互动,使作者以各种各样的方式玩弄着我们的心智,也正是这种互动才保证小说游戏千百年来得以发扬光大。从心智解读的源监控分析《红楼梦》中的不可靠叙述无疑有力地论证了西方认知叙事学理论运用于中国叙事文本的可行性。

关键词：源监控《红楼梦》不可靠叙述

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汉语兼表原因和结果的语法标记

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语言研究 2017年第3期37卷 1-6页

作者：曾冬梅邓云华石毓智邵阳学院外语系湖南邵阳422000 湖南师范大学外国语学院长沙410081 新加坡国立大学文学院新加坡117570

原因和结果是最重要的逻辑关系之一,每种语言都有各种表达这种逻辑关系的语法手段。根据目前语言类型学的研究成果,其他语言的因果标记的句法功能都是具体明确的,对于一个既定的标记,要么只能标记原因部分,要么只能标记结果部分,而不能... 详细信息

原因和结果是最重要的逻辑关系之一,每种语言都有各种表达这种逻辑关系的语法手段。根据目前语言类型学的研究成果,其他语言的因果标记的句法功能都是具体明确的,对于一个既定的标记,要么只能标记原因部分,要么只能标记结果部分,而不能兼有标记这两个部分的双重功能,英语的情况就是如此。然而在历史上,汉语的有关语法标记不少都是既可以标记原因部分,又能标记结果部分,即使到了现代汉语,这种现象仍然作为复合连词的语素而普遍存在着。这从一个侧面揭示了汉语语法的特点以及汉民族关于因果关系的认知视角。

关键词：因果复句原因部分结果部分连词语法标记

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The molecular mechanism of artesunate targeting vitamin D receptor to play its immune-regulating effect

The molecular mechanism of artesunate targeting vitamin D re...

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中国药理学会化疗药理专业委员会第十五届学术大会暨2018重庆化疗药物基础与前沿国际论坛

作者： Sheng-lan SHANG dong-mei deng Pan LI Xiao-li LI mei KUANG Yan-yan CEN Ron-gxin QIN Zhao-xia ZHAI Chao LIU Xi-chun PAN Jiang ZHENG Hong ZHOU Department of pharmacy the Third Military Medical University Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education Zunyi Medical University

OBJECTIVE Immunosuppression is the leading cause for sepsis patients’ death during middle and late *** there is no effective ***,artesunate(AS) was found to protect the cecal ligation and puncture(CLP) model in immunosuppression ***,the molecular mechanism of AS and its possible target was *** LPS tolerance cell model was established as the in vitro immunosuppression model to determine the content of inflammatory cytokines in the supernatant and the protein levels of autophagy related *** D receptor(VDR) was calculated to play a key role for LPS-tolerance and through the traditional Chinese medicine systems pharmacology database and analysis *** mRNA level and protein expression of VDR was determined in LPS tolerant cell treated with ***,VDR gene was overexpressed or knocked down to confirm its role for AS’s ***,the role of VDR was investigated to confirm the results of in vitro *** the level of pro-inflammatory cytokines obviously decreased in LPS tolerant cells comparing with those large-dose single treated with LPS(control group),which could be significantly promoted by *** could increase the protein level of autophagy related proteins in the LPS tolerant cells,which declined compared with the control *** mRNA level and protein expressions of VDR increased in model cells compared with control,which could be down-regulated by ***’s effect on proinflammatory cytokines release and protein level of autophagy related proteins could be altered when VDR gene was overexpressed and knocked *** results were observed in *** the immunoregulating effect of AS on immunosuppression phase is tightly related to VDR,and VDR may be the target of *** results provide a new drug target for sepsis treatment.

关键词： artesunate immunosuppression sepsis VDR autophagy

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Analysis of the anti-T2DM components in dichloromethane fraction of Schisandra sphenanthera and its mechanism

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Traditional Medicine Research 2025年第1期10卷 27-43页

作者： Shi-Bo Feng Hai-Hui Jiang Hui-Li Kang Yi Jiang Hua-Wei Zhang Xiao-mei Song Yu-Ze Li Wen-Li Huang dong-dong Zhang Chong deng School of Pharmacy Shaanxi University of Chinese MedicineXianyang 712046China School of Pharmacy and Shaanxi Qinling Application Development and Engineering Center of Chinese Herbal Medicine Shaanxi University of Chinese MedicineXianyang 712046China Key Laboratory for Research and Development of“Qin Medicine”of Shaanxi Administration of Traditional Chinese Medicine Xianyang 712046China Shaanxi Key Laboratory of Research and Application of“Taibai Qi Yao” Xianyang 712046China

Background:The type 2 diabetes mellitus(T2DM)pharmacodynamic study of various parts of Schisandra sphenanthera was conducted in the previous stage,and it was found that dichloromethane extracted part(SDP)had a significant hypoglycemic ***,the components of SDP were analyzed,and the specific mechanism of its anti-T2DM was ***:We used a high-fat,high-sugar diet in combination with streptozotocin to induce a T2DM rat model,and the model rats were divided into two groups according to body weight and blood ***,oral glucose tolerance test,fasting blood glucose,low density lipoprotein cholesterol,superoxide dismutase,insulin,glycated hemoglobin,total cholesterol,nonesterified free fatty acids,alanine aminotransferase,high-density lipoprotein cholesterol,aspartate aminotransferase,malondialdehyde,and glutathione peroxidase were measured,organ indices were calculated,and pathological sections of pancreas and liver were *** 16S rRNA V3–V4 region of intestinal flora was sequenced to explore the effect of SDP on biochemical indicators and intestinal *** on the above indicators,the anti-T2DM mechanism of SDP in Schisandra sphenanthera was ***:After six weeks of administration,the biochemical indices of diabetic rats were diminished compared to the control *** SDP could significantly increase the gut microbialα-diversity index,resulting in significant changes in the flora of T2DM rats,with increased richness and diversity,reduced harmful flora,and significantly back-regulated the levels of acetic acid,propionic acid,and butyric ***:SDP can improve the symptoms associated with elevated blood glucose,dyslipidemia,elevated fasting insulin levels,and damaged glucose tolerance in *** against T2DM may be through the control of intestinal flora to normalize and exert anti-diabetic effect;its main active components may be lignans and terpenoids.

关键词： Schisandra sphenanthera T2DM intestinal flora HPLC

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