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Hypoxiaandp53intheCardiovascularsystem

Hypoxic stress, like DNA damage, induces p53 protein accumulation and p53-dependent apoptosis in oncogenically transformed cells. Unlike DNA damage, hypoxia does not induce p53-dependent cell cycle arrest, suggesting that p53 activity is differentially regulated by these two stresses. Hypoxia induces p53 protein accumulation, but in contrast to DNA damage, hypoxia fails to induce endogenous downstream p53 effector mR......阅读全文

Hypoxia-Inducible Factor in the Cardiovascular System

Hypoxia (or low O2 levels) affects various pathologies. First, tissue ischemia, a variation in O2 tension caused by hypoxia/reoxygenation, can lead to

Guidelines for the Use of Analgesics and Tranquilizers in Laboratory Animal

What is Anesthesia? Anesthesia is a state of unconsciousness induced in an animal. The three components of anesthesia are analgesia (pa

Guidelines for theUse of Analgesics and Tranquilizers in Laboratory Animal6

 Anesthetic MachineThe best method of delivering an inhalant anesthetic is with an anesthetic machine. These machines precisely mix the gas

A rapid and highly sensitive method for somatic mutation profiling

AbstractTumor genotyping can provide a useful guide to drive clinical trials, inform treatment options, and predict patient outcomes1. This is due, in

Phospholipids as signalling intermediaries

Sphingosine-1-phosphate (S1P) is an example of lipid messengers with both intracellular and extracellular functions. Intracellularly S1P regulates pro

VEGF, Hypoxia, and Angiogenesis

Vascular endothelial growth factor (VEGF) plays a key role in physiological blood vessel formation and pathological angiogenesis such as tumor growth

2019年中国学者86篇Cell,Nature及Science文章汇总

  2019年上半年很快就结束了,iNature盘点了中国学者在Cell,Nature及Science发表的成果,我们发现总共有86篇(截至2019年6月24日),具体介绍如下:  4-6月发表的文章  【1】2019年6月21日,西北工业大学王文,中科院昆明动物研究所/BGI 张国捷及丹麦哥本哈根

The Developmental Effects of Nicotine on Chick Embryos

More than 22 million American women smoke and approximately 25% of these women continue to smoke during pregnancy (Lambers and Clark 1996). Cigarette

膜片钳技术(patch clamp)

Instruments For ElectrophysiologyProducts include microelectrode, voltage and current clamp amplifiers, perfusion chambers, perfusion heating systems,

Basic Mechanisms of SUMOylation

Like ubiquitin, SUMO (small ubiquitin-related modifier) proteins are small protein tags that are conjugated to proteins to modify their function. The

2019中国生命科学领域CNS盘点:曹雪涛 颜宁 施一公上榜

  截至2019年12月23日,中国学者在Cell,Nature及Science在线发表了107篇文章(2019年的Cell ,Nature 及Science 已经全部更新),iNature团队对于这些文章做了系统的总结:  按杂志来划分:Cell 发表了31篇,Nature 发表了44篇,Scie

走在最前沿 中国科学家突破干细胞分化观点

  主要成果   证明了心肌存在着不同密度和亲和力的a1肾上腺素受体亚型和内皮素受体亚型,揭示了其耦联的IP3信号通路调控心肌收缩力的分子机制;   建立了Ca2+ 释放通道ryanodine受体2基因剔除小鼠模型和胚胎干细胞系, 向心肌细胞和神经元体外分化、及成体干细胞体外分化的体系和分析

The Effect of Caffeine on the Heart Rates of Three-Day Old Chick Embryos

Objective      The purpose of this experiment is to observe the effect of caffeine on the heart rate of three day old ch

2019年中国学者发表CNS统计,谁是CNS发表之王?

  截至2019年12月31日,中国学者在Cell,Nature及Science在线发表了186篇文章,其中生命科学领域有109篇,材料学有30篇,物理学有20篇,化学有12篇,地球科学有15篇。iNature团队对于这些文章做了系统的总结:  按杂志来划分:Cell 发表了31篇,Nature 发

大跃进 | 中国学者CNS发表超过100篇生命科学领域研究成果

  截至2019年12月13日,中国学者在Cell,Nature及Science在线发表了105篇文章(2019年的Cell已经全部更新完毕,而对于Nature及Science只剩下了一期,将分别会12月19日及20日进行更新),小编对于这些文章做了系统的总结:  按杂志来划分:Cell 发表了30

TD-MSQS 2020 人物篇-专家介绍

Prof. Christa M. COBBAERTProfessor of Clinical Chemistry and Laboratory Medicine.Department of Clinical Chemistry and Laboratory Medicine. Leiden Univ

活体动物体内光学成像(二)

3. 实验过程 通过分子生物学克隆技术, 应用单克隆细胞技术的筛选,将荧光素酶的基因稳定整合到预期观察的细胞的染色体内,培养出能稳定表达荧光素酶蛋白的细胞株。典型的成像过程是:小鼠经过麻醉系统被麻醉后放入成像暗箱平台,软件控制平台的升降到一个合适的视野,自动开启照明灯拍摄第一次背景图。下一步,自动关

Cell Metabolism | 医学的第四维——生物节律

  众所周知,2017 诺贝尔生理或医学奖颁发给了三位美国遗传学家杰弗里·霍尔(Jeffrey C. Hall)、迈克尔·罗斯巴什(Michael Rosbash),以及迈克尔·杨(Michael W. Young),以表彰他们在发现果蝇生物节律分子机制方面的贡献。而在此前,医学界真正将生物节律——

人工转录因子的部件——人类锌指结构-2

Table 2: Binding sites and identity of ZFPs used in VEGF activationWe then generated artificial transcription factors by fusing the three-fi

年终盘点:2018年基因编辑盘点

  2018年11月,中国科学家贺建奎声称世界上首批经过基因编辑的婴儿-一对双胞胎女性婴儿---出生。他利用一种强大的基因编辑工具CRISPR-Cas9对这对双胞胎的一个基因进行修改,使得她们出生后就能够天然地抵抗HIV感染。这也是世界首例免疫艾滋病基因编辑婴儿。这条消息瞬间在国内外网站上迅速发酵,

Guidelines for theUse of Analgesics and Tranquilizers in Laboratory Animal3

BarbituratesThe barbiturates are an acid ring molecule with various ring substitutes that imbue the drug with different properties. Barbiturates are a

Adiponectin Replenishment Ameliorates Obesity-Related Hypertension(一)

Adiponectin Replenishment Ameliorates Obesity-Related Hypertension作者:Koji Ohashi; Shinji Kihara; Noriyuki Ouchi; Masahiro Kumada; Koichi Fujita; Aki

第三届生物质谱学术交流会第三轮通知

蛋白质组数据处理暨第三届全国生物质谱学术交流会(第三轮通知)   为了积极促进我国蛋白质组学技术发展和应用、数据挖掘和生物质谱的经验交流,由中国生物化学与分子生物学会蛋白质组学专业委员会、中国质谱学会生物质谱专业委员会和中国化学会分析化学委员会主办,北京蛋白质组研究中心、复旦大学和蛋

Actions of Nitric Oxide in the Heart

Nitric oxide (NO) has a number of important physiological actions in the cardiovascular system. In the heart, NO plays role in keeping the vessels pat

无创血压计应用论文:动物用血压计(四)

Ang II-stimulated Cardiac Dysfunction in ARKO Male Mice-We also evaluated the cardiac performance of these mice using echocardiography. Although l

PBMC细胞的精确计数和活性分析(三)

五、使用仪器发表文章AuthorDateTitleJournalCell TypeCellometer / ApplicationsMahato, Ram INovember 2013Synthesis and Characterization of an Anti-Apoptotic Immu

QTRAP代表文献回顾

 生物分子发表的代表性文献 QTRAP:同时具有三重四极杆和线性离子阱性能的独一无二的LC/MS/MS系统       QTRAP系统最早在ASMS 2002上,作为第一台商用的线性离子阱发布,是世界上唯一的线性离子阱和三重四极杆的复合

选择性微电极在植物生理学研究中的应用(五)

7  展望选择性微电极技术能用于直接并灵敏地观察植物体对矿质元素的需求,研究者可利用选择性微电极技术进行对植物某种离子或高或低的吸收的品种的筛选,还可制定出与植物需求相适应的环境的营养水平;能及时准确地探测到的光、温、水涝、盐分引起的植物体离子或分子信息的微小变化,能成为预测植物受到逆境胁

Guidelines for theUse of Analgesics and Tranquilizers in Laboratory Animal2

GeneralSome of the drugs listed here do not possess all three criteria for an anesthetic and must be used in combinations to achieve full anesthesia o

核仁小RNA(snoRNAs)的功能及其在癌症研究中的作用介绍

  核仁小RNA(snoRNAs)是一类中等长度的非编码小RNA,它们的长度在60-300nt不等,能与核仁核糖核蛋白结合形成snoRNPs 复合物[1]。在脊椎动物中编码核仁小RNA的基因主要存在于蛋白编码基因或非蛋白编码基因的内含子区域,并且经过进一步的转录后加工处理形成成熟的核仁小RNA[2]