BasicmechanismofactionofPPARa,PPARb(d)andPPARgandeffects
Similar to other nuclear hormone receptores, PPAR acts as a ligand activated transcription factor. Upon binding fatty acids or hypolipidemic drugs, PPARa interacts with RXR and regulates the expression of target genes. These genes are involved in the catabolism of fatty acids. Conversely, PPARg is activated by prostaglandins, leukotrienes and anti-diabetic thiazolidinediones and affects the expression of genes involv......阅读全文
MicroRNA-Expression-Profiling-by-Bead-Array-1
MicroRNA Expression Profiling by Bead Array Technology in Human Tumor Cell Lines Treated with Interferon-Alpha-2aMicroRNAs are positive and negative r
The-effect-of-lithium-chloride-on-Lytechinus-variegates-embryos
PurposeThis experiment will study effects of lithium chloride on sea urchin development, forcusing on archenteron formation.IntroductionGastrulation i
FXR-and-LXR-Regulation-of-Cholesterol-Metabolism
Cholesterol is essential for life and a key in the development of heart disease. Cholesterol homeostasis is achieved through regulation of cholesterol
METS-affect-on-Macrophage-Differentiation
Terminal differentiation of cells is often accompanied by repression of cellular proliferation, suggesting that there is a mechanism by which these ce
碳酸复红(Basic-Fuchsin)显示X染色质法
实验方法原理在间期细胞核中,女性X染色质和男性Y染色质均可用特殊染色法显示出来。女性的两个X染色体中的一个,在间期时的染色质呈异固缩(Heteropyconosis),呈深染的小体称Barr氏体。Barr氏体位于间期细胞核内面,呈三角形或半月形小体,易为碳酸复红或硫堇等染料着色。正常女性Barr氏体
IL-18-Signaling-Pathway
IL-18 is a pro-inflammatory cytokine similar in structure and mechanism of action to IL-1 beta. Formation of active IL-18 by macrophages requires clea
Nature:靶向核受体分子-治疗贫血新策略
近日,来自美国麻省理工学院的研究人员在著名国际学术期刊nature在线发表了一项最新研究进展,他们发现PPARa激动剂对于治疗红细胞生成素抵抗性贫血症具有重要作用。 许多急性和慢性贫血症,包括红细胞溶解,脓毒病以及遗传性骨髓衰竭如Diamond-Blackfan贫血,对于红细胞生成素(Epo)
山羊抗兔二抗(HRP标记)在诸多文献中的应用
在免疫学实验中,比如WB,IHC,IF等,大家都知道选着好正确的一抗,往往实验就成功了一大半,因此,往往很多研究者便会忽视对二抗,以及其它试剂盒品质的追求。二抗是一种相对而言比较稳定的产品,包装大,因此很多实验室都会公用一个二抗。但如果二抗没有选择好的话,影响的可能就是一整个实验室或者课题组了。艾美
Inhibition-of-Cellular-Proliferation-by-Gleevec
The drug Gleevec (also known as imatinib mesylate or STI-571) was approved by the FDA in 2001 for the treatment of CML, chronic myeloid leukemia. Whil
Polyphenoloxidase-(catechol-oxidases)-assay
Browning of the cut surface of some fruits and vegetables is due the presence of a group of enzymes called polyphenoloxidases. These enzymes are relea
SLC8A1基因突变因子与药物介绍
在心肌细胞中,Ca(2+)浓度在收缩时的高水平和舒张时的低水平之间交替收缩过程中ca(2+)浓度的增加主要是由于细胞内储存的ca(2+)释放所致。然而,一些Ca(2+)也通过肌膜(质膜)进入细胞在松弛过程中,ca(2+)被隔离在细胞内的储存中。为了防止细胞内存储物超载,必须从细胞中挤出穿过肌膜的Ca
SLC8A1基因编码的功能和结构描述
在心肌细胞中,Ca(2+)浓度在收缩时的高水平和舒张时的低水平之间交替收缩过程中ca(2+)浓度的增加主要是由于细胞内储存的ca(2+)释放所致。然而,一些Ca(2+)也通过肌膜(质膜)进入细胞在松弛过程中,ca(2+)被隔离在细胞内的储存中。为了防止细胞内存储物超载,必须从细胞中挤出穿过肌膜的Ca
Sprouty-regulation-of-tyrosine-kinase-signals
Four different members of the Sprouty protein family block the cellular proliferation and differentiation induced by several different growth factors,
pSEAP2Basic载体的基本信息和质粒图谱
pSEAP2-Basic载体载体基本信息载体名称pSEAP2-Basic载体抗性Ampicillin载体长度4677 bp载体类型Basic Cloning Vectors载体来源Clontech拷贝数High copy numberpSEAP2-Basic载体质粒图谱
Two-Dimensional-Gel-Electrophoretic-Analysis-for-the-Human-Plasma-Proteome
OverviewThis protocol is a detail description of the laboratory procedure in performing 2D gel electrophoresis for illustrating the protein profile of
南京大学医学院团队发现骨关节炎表观遗传新机制
近日,南京大学医学院曹望森教授课题组和蒋青教授课题组联手在骨关节炎表观遗传病理机制研究中取得重要进展,部分结果以“PPARg preservation via promoter demethylation alleviates osteoarthritis in mice” 为题于6月25日在线
Principles-of-Aseptic-Technique——2
PersonnelAseptic technique requires careful attention to a series of steps which begins with patient and instrument preparation and ends at final woun
Bone-Remodelling
Bone density and structure is maintained through a balance of bone resorption by osteoclasts and bone deposition by osteoblasts. The combination of si
Quantifying-Kinetics-of-Net-Ion-Fluxes-from-Plant-Tissues-by-Noninvasi...
Non-invasive microelectrode ion flux measuring (the MIFE system) allows concurrent quantification of net fluxes of several ions with high spatial
心肌细胞过氧化物酶体增殖物预防感染性心肌病
脓毒症被定义为对感染的全身炎症反应综合征(SIRS),是重症监护病房最常见的死亡原因。败血症病死率上升的主要原因是感染性休克。败血症不断损害心血管系统,心功能不全是感染性休克的主要原因。因此,迫切需要新的机制和有效的治疗方法来治疗脓毒症所致的心功能不全。 近日,来自首都医科大学的研究者们在
罗氏实时细胞分析系统为小分子研究提供预测性作用机理
对药物或小分子化合物能调制哪些蛋白靶位点的研究突破受到诸多因素的制约,包括靶蛋白的表达水平、化合物的有效浓度以及化合物对靶蛋白产生干扰所需的时间。目前所用的多维表型仿形法的一个局限之处是通常只选择一个时间点来评估化合物的效应。因此,依照该方法得出的化合物作用机理相关结论仅仅是基于处理样本的具体时
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
Granzyme-A-mediated-Apoptosis-Pathway
One mechanism used by cytotoxic T cells to kill tumor cells and virus-infected cells is the release of perforin and granzyme proteins. Perforin protei
Inhibition-of-the-fast-and-slow-blocks-to-polyspermy
Objective: to test the effects of inhibiting the fast and slow blocks to polyspermy on sea urchin development.BackgroundSea urchin eggs release compon
膀胱癌组织中bFGF蛋白的表达及其临床意义
【摘要】 目的:探讨碱性成纤维细胞生长因子(bFGF)与膀胱癌发生发展的关系。方法:应用免疫组化方法检测了48例膀胱癌存档标本和4例正常膀胱组织中bFGF的蛋白表达。结果:48例膀胱癌存档蜡块中有23例阳性,浸润性癌显著高于浅表癌(P<0.01),除G1和G2之间外各分级阳性率之间差异也有显著性。阳
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
合成孔径雷达原理(五)
Lay OverThe direction of relief displacement is different for optical and radar systems. A camera sees the relief displaced away from the nadir po
Ghrelin:-Regulation-of-Food-Intake-and-Energy-Homeostasis
The somatotropic axis. The synthesis and release of growth hormone (GH) from the pituitary are controlled by the hypothalamic hormones GH-releasing ho
亮点-|-抗高血脂药物有望用于阿尔茨海默病的治疗
阿尔茨海默病(Alzheimer’s disease, AD),是发生在老年前期与老年期的一种常见的神经退行性脑病,是最常见的老年痴呆类型,其发病率随着年龄增长而显著增加。AD的临床表现为病人渐进性记忆丧失、认知能力下降并伴有焦虑等其他精神相关症状。随着老龄化进程的加剧,全世界的AD患者数量正在
Lowdensity-lipoprotein-(LDL)-pathway-during-atherogenesis
Low-density lipoprotein (LDL) is a plasma lipoprotein particle whose lipid component includes cholesterol and triglycerides and is commonly referred t