EstimationofFatinMilkSamples
IntroductionMilk fat measurement is a common task in the dairy industry, because milk fat content is one factor that determines milk price and is necessary to know for casein/fat ratio normalization. It is also important for the dairyman to know milk fat content exactly: discrepancies in the results of milk fat tests (usually performed in the dairy industrial plant) have economic relevance. In addition, a low milk fa......阅读全文
组织学——染色
Hematoxylin and Eosin Staining of Tissue for LCM (Arcturus) Immunohistochemical Staining (IHC) (Arcturus)For optimal LCM from IHC samples, it is nec
Purification－of－GST－Fused－Proteins
Day 1Set up an overnight culture in 100 ml LMM broth or 100 ml terrific broth containing 100ul 100 mg/mlAmpDay 2Add 40-50 ml o/n culture to 1 lt terri
医疗器械体外诊断试剂的性能评估
产品性能评估是产品研发、制定产品标准等过程的重要技术支持研究过程，并可能对产品的质量造成一定的影响。目前国际上对体外诊断试剂的性能评估通常是以美国临床实验室标准化组织（Clinical and Laboratory Standards Institude以下称为CLSI）的相关标准为依据，也是美国F
FISH－protocols－for－Drosophila1
.1 RNA Probe Preparation (see Note 1)1. 1.5 mL microcentrifuge tubes or standard 96-well V-bottom microplates.2. RNAse free water.3. T7, T3 or S
HP－Tissue－DNA－Maxi－Protocol
实验概要The E.Z.N.A.® HP Tissue DNA Maxi Kit is designed for efficient recovery of genomic DNA up to 60 kb in size from up to 2 grams of tissue samples.
HP－Tissue－DNA－Midi－Protocol
实验概要The E.Z.N.A.® HP Tissue DNA Midi Kit is designed for efficient recovery of genomic DNA up to 60 kb in size from up to 500mg of tissue samples.
细胞周期的流式细胞伩检测实验方法（PI，Brdu)1
ANALYSIS OF CELL CYCLE Miriam Capri and Daniela Barbieri Dept. Biomedical Sciences, Sect. General Pathology,Via Campi, 287, University of Modena, 4110
国际食品法典委员会对乳制品中黄曲霉毒素的限量要求
国际食品法典委员会(CAC)发布的CODEX STAN 193-1995 CODEX GENERAL STANDARD FOR CONTAMINANTS AND TOXINS IN FOOD AND FEED(2010年修订)，对食品中污染物和毒素的限量做了规定。该标准规定乳(Milk)中黄曲霉
Methods－for－the－Detection－of－DAminoAcid－Oxidase1
AbstractFour methods (an enzyme activity assay, western blotting, RT-PCR, and northern hybridization) to detect the enzyme D-amino-acid oxidase are de
QRTPCR
Comparison of normalisation methodsThere is an ongoing debate what is the best way to normalise qPCR data. Reference genes are the most common method,
QRTPCR
Comparison of normalisation methodsThere is an ongoing debate what is the best way to normalise qPCR data. Reference genes are the most common method,
Western－Blot－(AP)
主要试剂1. Membrane Blocking buffer:5% Milk 0.05% of Tween 20 PBS2. antibody dilution buffer: PBS 0.05% of Tween20 1.0% Milk(or BSA) 3. washing buffer:
Western－Blotting
实验概要Western Blot (AP)主要试剂1. Membrane Blocking buffer:5% Milk 0.05% of Tween 20 PBS2. antibody dilution buffer: PBS 0.05% of Tween20 1.0% Milk(or BSA
细胞周期的流式细胞伩检测实验方法（PI，Brdu)2
B.3. COMMENTARY B.3.1 Background information The critical steps in the methodology are cell fixation, permeabilization and the concentrations of anti-
Western－Blotting－Protocols
back to topProtocolStandard vs. Rapid Immunodetection ProceduresThere are two types of protocols for immunodetection: Standard and rapid.Standard vs.
Western－Blot－Protocol
一、提取抗原蛋白将提取RNA途中留存的样品，加入150μl 100%酒精充分混匀，静置5min(RT), 2000×g , 4℃离心5min, 吸取上清至新管中, 加入750μl异丙醇, 混匀, 静置10min(RT), 12000×g, 4℃离心10min, 弃上清, 加入1ml 0.3mol/L
Nature子刊解答重要谜题：降解蛋白为何需要两个系统？
FAT10是一种小而强大的蛋白质，如果它与一个靶标蛋白结合在一起，就会释放出降解这个蛋白的信号，因此可以说FAT10是降解的标记系统。但是这种降解标记效率不高，相反其生物竞争者：泛素能循环使用，效率更高。对于整个生物系统来说，FAT10与泛素的并存似乎有些浪费。 康斯坦茨大学和Thurgau生
Nature子刊解答重要谜题：降解蛋白为何需要两个系统？
FAT10是一种小而强大的蛋白质，如果它与一个靶标蛋白结合在一起，就会释放出降解这个蛋白的信号，因此可以说FAT10是降解的标记系统。但是这种降解标记效率不高，相反其生物竞争者：泛素能循环使用，效率更高。对于整个生物系统来说，FAT10与泛素的并存似乎有些浪费。 康斯坦茨大学和Thurgau生
免疫印迹法实验原理和常见故障分析
免疫印迹法（western blot） 原理： 通过电泳区分不同的组分，并转移至固相支持物，通过特异性试剂（抗体）作为探针，对靶物质进行检测，蛋白质的Western印迹技术结合了凝胶电泳的高分辨率和固相免疫测定的特异敏感等多种特点，可检测到低至1～5ng（最低可到10－100pg）中等大小的
Complete－Mouse－Necropsy
EuthanasiaEuthanasia and mouse necropsies require prior IACUC approval. The mode of euthanasia should be chosen which minimizes pain or distress to th
Isolation－and－cultivation－of－endothelial－progenitor－cells－(EPCs)
Circulating bone marrow (BM)–derived endothelial progenitor cells (EPCs) are recruited to the site of tissue regeneration and substantially contri
RNA提取
RNA提取（主要内容如下）Tips for Handing RNA Total RNA IsolationmRNA IsolationrRNA IsolationOthersQ & A posted in the Method Forum Basic Procedures for Handing
Lactobacillus－transformation
OverviewThis page details a electrotransformation protocol for Lactobacillus bacteria, specifically Lactobacillus delbruckii subsp. bulgaricus and Lac
南昌大学Cancer－Res揭示癌症转移机制
来自南昌大学第二附属医院的研究人员证实，泛素样蛋白FAT10通过阻止β-catenin泛素化及降解促进了肝癌的侵袭转移。研究结果发表在7月23日的《癌症研究》（Cancer research）杂志上。 论文的通讯作者是南昌大学第二附属医院的邵江华（Jianghua Shao）教授，主要从事肝
Western杂交
实验概要本实验介绍了Western杂交的基本流程。主要试剂液氮，提取缓冲液(1 x PBS，10ug/mL Leupeptin，1 mM PMSF，5 mMBenzamidine. 2mM EDTA)，转移缓冲液(39mM Glycine，48mM Tris，0.037% SDS，20%甲醇)，
Western杂交
实验概要本实验介绍了Western杂交的基本流程。主要试剂液氮，提取缓冲液(1 x PBS，10ug/mL Leupeptin，1 mM PMSF，5 mMBenzamidine. 2mM EDTA)，转移缓冲液(39mM Glycine，48mM Tris，0.037% SDS，20%甲醇)，
a－pipeline－for－the－identification－of－intact－Nglycopeptides（六）
Figure 4. Comparison of different decoy strategies. The estimated FDR of each decoy method is compared with the real FDR. “Decoy: + 11” means in
Isolation－of－microRNA－(miRNA)
实验概要 This protocol utilizes the powerful guanidine isothiocyanate–phenol:chloroform extraction method which allows the rapid isolation of t
Western－Blot－with－Platelet－Protein
OUTLINEWestern blot is a wide used technique to identify a target protein/s for the certain antibody.PROTOCOLPrepare platelets.Lyse washed platelets (
肠道微生物能影响三聚氰胺诱发肾病
北卡罗莱纳大学的Wei Jia教授与英国伦敦帝国学院的Jeremy Nicholson教授研究小组合作进行了一项国际研究，研究显示，肠道内的微生物可影响三聚氰胺中毒引起的肾脏疾病的严重程度。2008年，近30万中国儿童因食用受三聚氰胺（故意添加以提高蛋白质含量）污染的奶粉引发肾脏疾病而住院。虽然已知