17 research outputs found

    Subcelluar localization of Estrogen receptor ERα And its relationship with cell proliferate

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    雌激素受体(estrogenreceptor,ER)是核受体超家族(nucleusreceptor,NR)成员之一。作为一种激素受体,ER能够被其配体雌激素中的主要成分雌二醇(steroidhormone17ß-estradiol,E2)激活。ER广泛地分布在雌性或雄性生殖系统、乳腺、中枢神经系统的部分区域里。同时,ER还参与细胞增殖、分化、凋亡等各种重要的生理调控过程。ER可以分成ERa和ERb两个亚型,它们都由4个不同的功能域组成,每个功能域都发挥不同的作用。这4个功能域分别是:转录激活区(A/B)、配体结合区(LBD)、铰链区(Hinge)和DNA结合区(DBD)。本文中,我...Estrogen receptor (ER), known as a hormone receptor, is one of the members of nucleus receptor (NR). ER has been shown to be activated in response to its ligand: steroid hormone 17ß-estradiol (E2). As a mediator of estrogen action, the ER is involved in many important physiological processes, such as in spermary, ovary and neurocyte. At the same time, ER also participates in cell proliferati...学位:理学硕士院系专业:生命科学学院生物医学科学系_细胞生物学学号:20032607

    Co-Ni-W三元系相图的实验测定与热力学计算

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    本研究采用合金法、电子探针显微分析仪(EPMA)和X射线衍射(XRD)技术,对Co-Ni-W三元系在1 000℃和1 200℃下的等温截面相图进行了实验测定。结合本研究和已报道的相平衡实验信息,基于CALPHAD (Calculation of phase diagrams)方法,对Co-Ni-W三元系相图进行了热力学优化与计算,获得了自洽性良好的热力学参数,计算结果与实验数据取得了良好的一致性。国家重点研发计划(2016YFB0701401)~

    Evaluation on difference of therapeutic efficacy of Jiawei Xiaoyao Granules and Pills in treatment of emotional disorder during perimenopause based on Greene Climacteric Scale

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    目的:在前期加味逍遥丸治疗围绝经期情绪障碍具有比较优势的基础上,基于grEEnE量表探讨其颗粒剂和丸剂不同剂型间疗效差异。方法:经筛选后患有情绪障碍的围绝经期女性75例随机等分为A、b、C3组,分别对应采用帕罗西汀、加味逍遥丸和加味逍遥颗粒剂治疗8周。所有患者在治疗前后各进行1次grEEnE及其子因子评定,并在观察期结束时进行TESS评定。结果:grEEnE总分差及其焦虑、抑郁因子分差:3种治疗方法均能改善,且相互间无显著差异;grEEnE性因子和血管因子分差:后二组均优于A组(P<0.01);TESS评分:与A组比较,b、C组均有统计学意义(P<0.01),评分均小于A组,且后二组间无显著差异。结论:加味逍遥的2种剂型间疗效无显著差异,考虑到帕罗西汀的不良反应,治疗该病加味逍遥的2种剂型都值得推荐。Objective: To investigate the difference in therapeutic efficacy between Jiawei Xiaoyao Granules and pills based on the preliminary research of treating emotional disorder during perimenopause with Jiawei Xiaoyao Pills and Greene Climacteric Scale.Methods: 75 female patients with emotional disorder during perimenopause were slected and randomly divided into 3 groups as group A, B and C.Patients in the 3 groups were treated with paroxetine, Jiawei Xiaoyao Pills and Jiawei Xiaoyao Granules respectively for 8 weeks.Greene and Greene factors assessment were carried out in all the patients before and after treatment, and the TESS assessment was carried out at the end of the observation period.Results: The three therapies all could improve the gap in total score of Greene and its factors as anxiety and depressed, and the difference among these three groups was no significant.The factors of Greene and gap in score of vascular factors of group B and C was better than that of group A(P<0.01).The difference in TESS score between group A and group B and C was significant(P<0.01), while the difference between group B and group C was not significant.Conclusion: The difference in curative effect between the two formulations was not significant.Because of the adverse reactions of paroxetine, in the treatment of emotional disorder during perimenopause, the two formulations of Jiawei Xiaoyao Powder were worth to be recommended.国家自然科学青年基金项目(No.81302960)~

    类泛素蛋白及其中文命名

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    泛素家族包括泛素及类泛素蛋白,约20种成员蛋白.近年来,泛素家族领域取得了迅猛发展,并已与生物学及医学研究的各个领域相互交叉.泛素家族介导的蛋白质降解和细胞自噬机制的发现分别于2004和2016年获得诺贝尔奖.但是,类泛素蛋白并没有统一规范的中文译名. 2018年4月9日在苏州召开的《泛素家族介导的蛋白质降解和细胞自噬》专著的编委会上,部分作者讨论了类泛素蛋白的中文命名问题,并在随后的\"泛素家族、自噬与疾病\"(Ubiquitinfamily,autophagy anddiseases)苏州会议上提出了类泛素蛋白中文翻译草案,此草案在参加该会议的国内学者及海外华人学者间取得了高度共识.冷泉港亚洲\"泛素家族、自噬与疾病\"苏州会议是由美国冷泉港实验室主办、两年一度、面向全球的英文会议.该会议在海内外华人学者中具有广泛影响,因此,参会华人学者的意见具有一定的代表性.本文介绍了10个类别的类泛素蛋白的中文命名,系统总结了它们的结构特点,并比较了参与各种类泛素化修饰的酶和它们的生物学功能.文章由45名从事该领域研究的专家合作撰写,其中包括中国工程院院士1名,相关学者4名,长江学者3名,国家杰出青年科学基金获得者18名和美国知名高校华人教授4名.他们绝大多数是参加编写即将由科学出版社出版的专著《泛素家族介导的蛋白质降解和细胞自噬》的专家

    Subcellular Localization of Estrogen Receptor α and Its Relationship with Cell Proliferation

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    雌激素受体(Estrogen Receptor,ER)是核受体(Nucleus Receptor,NR)超家族成员,能够被其配体雌二醇(Steroidhormone 17-β-estradiol,E2)激活.ER有两种亚型,ERα和ERβ,由4个不同的功能域组成.通过构建ERα的不同缺失突变体(ERΔLBD、ERΔDBD和ERΔHinge)来研究不同功能域对细胞增殖及在E2刺激下对ERα亚细胞定位的影响.结果表明,ERα呈核多浆少的分布,ERΔLBD为核定位,ERΔDBD为核多浆少分布,ERΔHinge则主要分布在胞浆.进一步分析表明,E2诱导的ERα入核是核定位序列(Nuclear Location Signal,NLS)依赖性.此外,我们还发现,ERα能够增强293T细胞增殖,且这种促增殖效应可能依赖于ERα在细胞核与胞浆的正常转运. 【英文摘要】 Estrogen receptor(ER),known as a hormone receptor,is one of the members of nucleus receptor(NR).ER has been shown to be activated in response to its ligand,steroid hormone 17-β-estradiol(E2).There are two kinds of ER,ERα and ERβ.ERs have four different functional regions,including transcriptional activity domain,ligand binding domain,hinge domain and DNA binding domain.In this study,three different ERα mutants(ERΔLBD、ERΔDBD and ERΔHinge) were constructed to study the influence of ERα in cell proliferation a...福建省自然科学基金(C0410003)资

    基于双路正交实现数字锁定放大器的方法

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    采用IQ(正交)双路参考信号实现数字LIA(锁定放大器)的微弱正弦信号的检测,利用稀疏分解将原子库的原子对作为参考信号,利用MP(匹配追踪)算法来搜索过完备原子库的最优原子对,并通过该原子对判断最佳相位角,从而合成最优原子。由该最优原子可以估计得到输入有用信号,从而检测估计出输入信号中的有用正弦信号。与单路数字LIA相比,该方法计算效率更高,计算速度亦成倍提高,且继承了单路数字LIA的优点

    多径衰落信道下BOC信号捕获性能分析

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    针对多径衰落信道下BOC(二进制偏移载波)信号的捕获问题,通过对多径衰落信道建模,运用目前较优越的捕获算法对各信道下的捕获性能进行比较。结合莱斯因子K、多径径数L以及多径延迟,分析了多径衰落信道对BOC信号捕获产生的影响。理论分析和仿真结果表明,K值越大,捕获函数峰值越大,捕获性能越好;L值越小,出现副峰越少,捕获性能越好

    运载火箭非火工冷气推冲分离系统

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    我国的液体运载火箭级间分离、整流罩分离基本采用火工分离装置为主,包括爆炸螺栓、分离螺母、切割器、各类火工锁、火工推杆等分离解锁和冲量装置。此类装置具有体积小、结构简单、承载能力强、作用可靠、作用时间短和同步性高等优点,但也存在不可克服的缺点,如安全性差、不能重复使用、可靠性难以验证、冲击载荷较大、产生污染等。因此,基于电能、记忆合金、气动能源的非火工分离技术不断涌现并日益发展起来

    The Influence of Straw Mulch Amount to Summer Maize Yield

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    通过对夏玉米在露天和干旱棚控水2种土壤水分状况下生长状况的观测,发现秸秆覆盖夏玉米有明显增产效应,作物水分利用效率均得到了不同程度提高。通过对0、3000、6000、9000、12000 kg/hm2五种处理下玉米状况的对比,得出6000 kg/hm2为渭河平原地区最适宜夏玉米田秸秆覆盖量。在6000 kg/hm2覆盖量下,露天小区夏玉米可增产5.61%。试验证明,渭河平原地区秸秆覆盖夏玉米,增产潜力大,是一种值得推广的玉米增产措施

    Parents Cultural intelligence(CQ)and Acculturation of Children:The Mediation of Parents Expectation

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    采用"滚雪球"的方法对732个家庭进行问卷调查,本研究考察了家长期望在家长文化智力与子女跨文化流动适应关系中的作用。研究将家长文化智力分为四个成分,其中家长元认知性文化智力、动机性文化智力和行为性文化智力对子女跨文化行为适应有显著的预测作用,家长动机性文化智力和行为性文化智力对子女跨文化认知适应有显著的预测作用。在家长动机性文化智力对子女跨文化认知适应的正向预测关系中,家长环境适应期望、外语期望起部分中介作用;在家长行为性文化智力对子女跨文化认知适应的正向预测关系中,家长环境适应期望起部分中介作用。家长期望在家长文化智力与子女跨文化流动适应关系中起部分中介作用
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