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利用cyp17a1缺失的伪雄鲤成功构建全雌鲤群体 Article

翟刚, 舒婷婷, 陈贶新, 娄气永, 贾景怡, 黄建飞, 石闯 , 金霞, 贺江燕, 姜冬火, 钱雪桥, 胡炜, 殷战

《工程（英文）》 2022年 第8卷 第1期   页码 181-189 doi: 10.1016/j.eng.2021.03.026

摘要： 本研究针对雌鲤生长快于雄鲤的两性生长异形的特性，以cyp17a1 为靶点进行了CRISPR/Cas9介导的基因编辑操作，利用cyp17a1 敲除后形成的伪雄鲤，成功构建了全雌鲤群体首先，我们发现无论遗传性别型为XX还是XY，其cyp17a1 缺失鲤个体性腺均发育为精巢，并能正常产精。其次，利用确定的雄性特异DNA分子标记，筛选到cyp17a1 -/- XX伪雄个体，其具有正常的精巢发育和精子发生。将全雌群体和对照组雌雄混合群体各500 尾进行同塘生长对比养殖，至8 月龄或12 月龄时随机抽样检测，发现cyp17a1杂合突变雌鲤体重比同塘性别混养对照组分别高6.60%或32.66%

关键词： 鲤     两性异形     生长     cyp17a1     性类固醇激素     全雌群体    

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Rdh13 deficiency weakens carbon tetrachloride-induced liver injury by regulating Spot14 and Cyp2e1 expression

Xiaofang Cui, Benting Ma, Yan Wang, Yan Chen, Chunling Shen, Ying Kuang, Jian Fei, Lungen Lu, Zhugang Wang

《医学前沿（英文）》 2019年 第13卷 第1期   页码 104-111 doi: 10.1007/s11684-017-0568-x

摘要： Mitochondrion-localized retinol dehydrogenase 13 (Rdh13) is a short-chain dehydrogenase/reductase involved in vitamin A metabolism in both humans and mice. We previously generated knockout mice and showed that Rdh13 deficiency causes severe acute retinal light damage. In this study, considering that Rdh13 is highly expressed in mouse liver, we further evaluated the potential effect of Rdh13 on liver injury induced by carbon tetrachloride (CCl ). Although Rdh13 deficiency showed no significant effect on liver histology and physiological functions under regular culture, the mice displayed an attenuated response to CCl -induced liver injury. Their livers also exhibited less histological changes and contained lower levels of liver-related metabolism enzymes compared with the livers of wild-type (WT) mice. Furthermore, the mice had Rdh13 deficiency and thus their liver cells were protected from apoptosis, and the quantity of their proliferative cells became lower than that in WT after CCl exposure. The ablation of gene decreased the expression levels of thyroid hormone-inducible nuclear protein 14 (Spot14) and cytochrome P450 (Cyp2e1) in the liver, especially after CCl treatment for 48 h. These data suggested that the alleviated liver damage induced by CCl in mice was caused by Cyp2e1 enzymes, which promoted reductive CCl metabolism by altering the status of thyroxine metabolism. This result further implicated Rdh13 as a potential drug target in preventing chemically induced liver injury.

关键词： retinol dehydrogenase 13     carbon tetrachloride     acute liver injury     Cyp2e1     Spot14    

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17–26.5 GHz 42.5 dBm宽带高效率GaN功率放大器设计 Correspondences

黎明1,2,李智群1,3,郑权2,蔺兰峰2,陶洪琪2

《信息与电子工程前沿（英文）》 2022年 第23卷 第2期   页码 346-350 doi: 10.1631/FITEE.2000513

摘要： 该功率放大器采用0.15 μm栅长GaN-HEMT工艺，其工作频段可以覆盖整个K频段，即17–26.5 GHz。该功率放大器采用三级放大拓扑结构，在连续波条件下，测试结果表明，在17–26.5 GHz频带范围内饱和输出功率超过42.5 dBm，平均PAE为30%，在19.8 GHz时PAE达到最大，为32.1%，

关键词： K波段；高效率；宽带；氮化镓（GaN）；功率放大器    

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Th17 Cells in autoimmune diseases

null

《医学前沿（英文）》 2015年 第9卷 第1期   页码 10-19 doi: 10.1007/s11684-015-0388-9

摘要：

Th17 cells are a new subset of CD4+ T cells involved in the clearance of extracellular pathogens and fungi. Accumulating evidence suggests that Th17 cells and their signature cytokines have a pivotal role in the pathogenesis of multiple autoimmune-mediated inflammatory diseases. Here, we summarize recent research progress on Th17 function in the development and pathogenesis of autoimmune diseases. We also propose to identify new small molecule compounds to manipulate Th17 function for potential therapeutic application to treat human autoimmune diseases, including rheumatoid arthritis, systemic lupus erythematosus, Sj?gren’s syndrome, inflammatory bowel disease, and multiple sclerosis.

关键词： IL-17     Th17 cells     RORγt     autoimmune diseases     posttranslational modification     inhibitors    

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Relationship between Th17 cells and allograft rejection

Zhikun ZHENG MM, Jinsong LI MD, Ke JIANG MD,

《医学前沿（英文）》 2009年 第3卷 第4期   页码 491-494 doi: 10.1007/s11684-009-0066-x

摘要： Thl7 cells, a special kind of auxiliary type T cells, can secrete IL-17A, IL-17F, IL-21, IL-22, etc., as a newly discovered T-cell subset in recent years. As a different subset from the Thl and Th2 cells, Th17 cells play an important role in the development of a variety of autoimmune diseases. A current study shows that the IL-6 inflammatory response of the organization in combination with the occurrence of TGF-β can induce the differentiation of Thl7 cells. IL-23 can promote the production of IL17, as well as participate in amplification and maintenance of the survival of IL-l7 generating cells. In this process, STAT3 and ROR-γt are key transcription factors for the growing of Thl7 cells. As our knowledge on Th17 family members is rapidly growing and changing, it will be important to specify their involvement in the induction and regulation of allograft rejection in animal models as well as in clinical settings. Herein, we review the key features of Th17 cells and discuss their potential relevance to transplantation immunity.

关键词： TH17 cells     regulation     allograft     rejection    

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sources of dissolved organic matter from wastewater treatment plants and their mediation effect on 17α-ethinylestradiol

《环境科学与工程前沿（英文）》 2023年 第17卷 第6期 doi: 10.1007/s11783-023-1669-1

摘要：

● EE2 photodegradation behavior in the presence of four WWTPs’ DOM was explored.

关键词： Photosensitivity sources     17α-ethinylestradiol     Photodegradation     Dissolved organic matter     Wastewater treatment plants    

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Isolation and characterization of a bacterial strain that efficiently degrades sex steroid hormones

JI Shulan, LIU Zhipeng, REN Haiyan, LIU Zhipei

《环境科学与工程前沿（英文）》 2007年 第1卷 第3期   页码 325-328 doi: 10.1007/s11783-007-0055-8

摘要： A bacterial strain, ZY3, growing on sex steroid hormones as the sole source of carbon and energy was isolated from the sewage treatment plant of a prophylactic steroids factory. ZY3 degrades the 3-methoxy-17-hydroxy-1,3,5(10),8(9)--4-estren (MHE). This strain was preliminarily identified as sp. ZY3 according to its morphology and its 16S rRNA gene sequence. During the experimental period (72 h), the optimum temperature, pH and 3-MHE concentration for the degradation of hydride by the strain ZY3 were 35vH, 10 and 10 mg/L, respectively. The degradation rate of the sex steroid hormones increased to 87% and 85% after the addition of maltose and peptone, respectively.

关键词： maltose     optimum temperature     prophylactic     3-methoxy-17-hydroxy-1     3     5     addition    

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Traces and echoes of De Architectura by Marcus Vitruvius Pollio in the work of Xu Guangqi in 17th

Michela CIGOLA,Yibing FANG

《机械工程前沿（英文）》 2016年 第11卷 第1期   页码 3-11 doi: 10.1007/s11465-015-0359-5

摘要：

This study aims to investigate the role played by Xu Guangqi (1562–1633), minister of the Ming Dynasty, in the development of European scientific and technical knowledge in China between the 16th and 17th centuries by analyzing a book of Western technology that he wrote, namely, Taixi Shuifa (On Western Hydraulics). Several Western books related to machine knowledge are searched to trace the source of the illustrations in Taixi Shuifa. We found that Archimedes’ screw and Ctesibius’ machine, which are included in Vitruvius’ De Architectura volumes, also appear in the work of Xu Guangqi.

关键词： Vitruvius’ De Architectura     Xu Guangqi’s Taixi Shuifa     Jesuit missionaries     Italian Renaissance     drawing     representation    

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Effect of biochar amendment on soil’s retention capacity for estrogenic hormones from poultry manure treatment

Sukhjot MANN, Zhiming QI, Shiv O. PRASHER, Lanhai LI, Dongwei GUI, Qianjing JIANG

《农业科学与工程前沿（英文）》 2017年 第4卷 第2期   页码 208-219 doi: 10.15302/J-FASE-2017138

摘要： Most animals, including humans, produce natural sex hormones such as estrogens: 17β-estradiol (E2) and estrone (E1). These compounds are able to disrupt the reproductive systems of living organisms at trace concentrations (ng·L ). This experiment tests the hypothesis that 1% slow pyrolysis biochar-amended sandy soil could retain significant amount of estrogens (E1, E2) from poultry manure in its second year of application. The experiment was conducted over 46 days and consisted of a series of lysimeters containing sandy soil with biochar-amended topsoil. The application rate of poultry manure was kept at 2.47 kg·m . The biochar held a significant concentration of hormone during the first year of its application. However, in the following year (current study), there was no significant retention of hormones in the biochar-amended soil. During the first year after application, the biochar was fresh, so its pores were available for hydrophobic interactions and held significant concentration of hormones. As time passed there were several biotic and abiotic changes on the surface of the biochar so that after some physical fragmentation, pores on the surface were no longer available for hydrophobic interactions. The biochar started releasing dissolved organic carbon, which facilitated greater mobility of hormones from poultry manure down the soil profile.

关键词： adsorption     degradation     dissolved organic carbon     17β-estradiol (E2)     estrone (E1)    

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Removal of 17β-estradiol in laccase catalyzed treatment processes

XIA Qing,KONG Deyang,LIU Guoqiang,HUANG Qingguo,ALALEWI Aamr,LU Junhe

《环境科学与工程前沿（英文）》 2014年 第8卷 第3期   页码 372-378 doi: 10.1007/s11783-013-0567-3

摘要： The removal of 17β-estradiol (E2) in laccase catalyzed oxidative coupling processes was systematically studied in this work. We focused on the influence of pH and natural organic matter (NOM) on the performance of the enzymatic treatment processes. It was found that the optimal pH for E2 removal was between 4 and 6. The removal of E2 was slightly inhibited in the presence of NOM. Enzymatic transformation of E2 was second-order in kinetics with first-order to both the concentrations of the enzyme and contaminant. Mass spectrum (MS) analysis suggested that coupling products were formed through radical-radical coupling mechanism. The results of this study demonstrated that laccase catalyzed oxidative coupling process could potentially serve as a treatment strategy to control steroid estrogens.

关键词： 17β-estradiol     laccase     oxidative coupling processes     kinetics     mechanisms    

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基于先验信息的5G及后5G毫米波大规模多入多出车载通信信道估计 Research Articles

易钊1,邹卫霞1,2,孙学斌1

《信息与电子工程前沿（英文）》 2021年 第22卷 第6期   页码 777-789 doi: 10.1631/FITEE.2000515

摘要： 毫米波（mmWave）被认为是5G及后5G高带宽车载通信的可行解决方案。为实现在未来车辆通信中的应用，鲁棒的毫米波车载网络非常重要。然而，一个挑战是，毫米波应在车辆或车辆到基础设施（V2I）之间提供高速和超高速数据交换。此外，由于车辆的高速移动引起毫米波信道快速变化，传统的实时信道估计方案难以实现。针对这些问题，提出一种毫米波V2I车辆通信信道估计方法。首先考虑快速运动的车辆场景，建立相应的快速时变信道数学模型。然后，利用基站与每个移动用户之间的时间变化规律和确定的到达方向，预测时变信道先验信息（PI）。最后，利用PI和信道特性对时变信道进行估计。仿真结果表明，在毫米波时变车载通信系统中，该方案在归一化均方误差和和率性能上均优于传统方案。

关键词： 大规模多入多出；毫米波；信道估计；车辆通信；时变    

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Effect of atorvastatin on tumor growth and metastasis in a breast cancer cell xenograft model and its mechanism

Liu LIU MD, PhD, Yaogui NING MM, Chen CHEN MD, Daowen WANG MD, PhD,

《医学前沿（英文）》 2009年 第3卷 第4期   页码 443-446 doi: 10.1007/s11684-009-0079-5

摘要： This paper aims to evaluate the effects and the possible mechanisms of atorvastatin on tumor growth and metastasis in a xenograft tumor model. Twenty-four female athymic BALB/C mice with MDA-MB-435 xenograft tumors were randomly assigned to three groups: a control group, a low-dose atorvastatin treatment group, and a high-dose atorvastatin treatment group. The mice in the treatment groups began to be administered with atorvastatin (10 or 20 mg/kg per day) when the xenograft tumors reached 1 cm in diameter. At the end of the experiment, the tumor volume and weight and the lung metastasis colonies of each mouse were measured. Western blotting was applied to detect phosphorylation of protein kinase B (PKB, Akt), extracellular signal regulated kinase (ERK), c-Jun N-terminal Kinase (JNK), and the expression of cytochrome P450 (CYP) subtype CYP2J2. Atorvastatin suppressed xenograft tumor growth and metastasis both in the low-dose and the high-dose treatment groups ( < 0.05). Atorvastatin also decreased the phosphorylated Akt (p-Akt) and p-ERK but increased p-JNK expression. However, atorvastatin did not alter the expression of CYP2J2 in tumor tissue. This suggests that atorvastatin has the efficacy of suppressing tumor growth and metastasis . These effects were not dependent on down-regulation of CYP2J2 expression.

关键词： atorvastatin     xenograft tumor     metastasis     CYP2J2    

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Kinetics of enhanced adsorption by polarization for organic pollutants on activated carbon fiber

HAN Yanhe, QUAN Xie, ZHAO Huimin, CHEN Shuo, ZHAO Yazhi

《环境科学与工程前沿（英文）》 2007年 第1卷 第1期   页码 83-88 doi: 10.1007/s11783-007-0016-2

摘要： The adsorption kinetics for model pollutants on activated carbon fiber (ACF) by polarization was investigated in this work. Kinetics data obtained for the adsorption of these model pollutants at open-circuit, 400 mV, and -400 mV polarization were applied to the Lagergren equation, and adsorption rate constants () were determined. With the anodic polarization of 400 mV, the capacity of sodium phenoxide was increased from 0.0083 mmol/g at open-circuit to 0.18 mmol/g, and a 17-fold enhancement was achieved; however, the capacity of -nitrophenol was decreased from 2.93 mmol/g at open-circuit to 2.65 mmol/g. With the cathodal polarization of -400 mV, the capacity of aniline was improved from 3.60 mmol/g at open-circuit to 3.88 mmol/g; however, the capacity of sodium dodecylbenzene sulfonate was reduced from 2.20 mmol/g at open-circuit to 1.59 mmol/g. The enhancement for electrosorption changed with dif ferent groups substituting. Anodic polarization enhances the adsorption of benzene with the electron-donating group. But whether anodic or not, cathodal polarization had less effect on the adsorption of electron-accepting aromatic compounds, and decreased the adsorption capacity of benzene-bearing donor-conjugate bridge-acceptor, while increasing its adsorption rate. Electrostatic interaction played a very important role in the electrosorption of ion-pollutants.

关键词： ACF     activated     17-fold enhancement     donor-conjugate bridge-acceptor     Electrostatic interaction    

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Deep reinforcement learning: a survey

Yi-yun Zhang, Da-wei Feng, Feng Huang, Dong-sheng Li, Yi-ming Zhang,wanghaonan14@nudt.edu.cn,liuning17a

《信息与电子工程前沿（英文）》 2020年 第21卷 第12期   页码 1671-1814 doi: 10.1631/FITEE.1900533

摘要： Deep (RL) has become one of the most popular topics in artificial intelligence research. It has been widely used in various fields, such as end-to-end control, robotic control, recommendation systems, and natural language dialogue systems. In this survey, we systematically categorize the deep RL algorithms and applications, and provide a detailed review over existing deep RL algorithms by dividing them into model-based methods, model-free methods, and advanced RL methods. We thoroughly analyze the advances including exploration, inverse RL, and transfer RL. Finally, we outline the current representative applications, and analyze four open problems for future research.
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灰色预测模型GM（１，１）的适用性分析及在火灾风险预测中的应用

陈子锦,王福亮,陆守香

《中国工程科学》 2007年 第9卷 第5期   页码 91-94

摘要：

通过对灰色预测模型———GM（１，１）的理论分析，证明了该模型的预测值及其变化趋势均具有单调 性，进而提出了GM（１，１）模型的适用性判据，并给出了该判据在火灾风险灰色预测中的应用实例。

关键词： 火灾预测     GM(1     1)模型     火灾伤人率    

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标题 作者 时间 类型 操作

利用cyp17a1缺失的伪雄鲤成功构建全雌鲤群体

翟刚, 舒婷婷, 陈贶新, 娄气永, 贾景怡, 黄建飞, 石闯 , 金霞, 贺江燕, 姜冬火, 钱雪桥, 胡炜, 殷战

期刊论文

Rdh13 deficiency weakens carbon tetrachloride-induced liver injury by regulating Spot14 and Cyp2e1 expression

Xiaofang Cui, Benting Ma, Yan Wang, Yan Chen, Chunling Shen, Ying Kuang, Jian Fei, Lungen Lu, Zhugang Wang

期刊论文

17–26.5 GHz 42.5 dBm宽带高效率GaN功率放大器设计

黎明1,2,李智群1,3,郑权2,蔺兰峰2,陶洪琪2

期刊论文

Th17 Cells in autoimmune diseases

null

期刊论文

Relationship between Th17 cells and allograft rejection

Zhikun ZHENG MM, Jinsong LI MD, Ke JIANG MD,

期刊论文

sources of dissolved organic matter from wastewater treatment plants and their mediation effect on 17α-ethinylestradiol

期刊论文

Isolation and characterization of a bacterial strain that efficiently degrades sex steroid hormones

JI Shulan, LIU Zhipeng, REN Haiyan, LIU Zhipei

期刊论文

Traces and echoes of De Architectura by Marcus Vitruvius Pollio in the work of Xu Guangqi in 17th

Michela CIGOLA,Yibing FANG

期刊论文

Effect of biochar amendment on soil’s retention capacity for estrogenic hormones from poultry manure treatment

Sukhjot MANN, Zhiming QI, Shiv O. PRASHER, Lanhai LI, Dongwei GUI, Qianjing JIANG

期刊论文

Removal of 17β-estradiol in laccase catalyzed treatment processes

XIA Qing,KONG Deyang,LIU Guoqiang,HUANG Qingguo,ALALEWI Aamr,LU Junhe

期刊论文

基于先验信息的5G及后5G毫米波大规模多入多出车载通信信道估计

易钊1,邹卫霞1,2,孙学斌1

期刊论文

Effect of atorvastatin on tumor growth and metastasis in a breast cancer cell xenograft model and its mechanism

Liu LIU MD, PhD, Yaogui NING MM, Chen CHEN MD, Daowen WANG MD, PhD,

期刊论文

Kinetics of enhanced adsorption by polarization for organic pollutants on activated carbon fiber

HAN Yanhe, QUAN Xie, ZHAO Huimin, CHEN Shuo, ZHAO Yazhi

期刊论文

Deep reinforcement learning: a survey

Yi-yun Zhang, Da-wei Feng, Feng Huang, Dong-sheng Li, Yi-ming Zhang,wanghaonan14@nudt.edu.cn,liuning17a

期刊论文

灰色预测模型GM（１，１）的适用性分析及在火灾风险预测中的应用

陈子锦,王福亮,陆守香

期刊论文