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Human Primary Preadipocytes and Differentiated Adipocytes
...duce this metabolic pathway. The lipolysis response can be assayed by measuring the release of glycerol into the culture medium ( Figure 4 ). Thus, these cells are useful for analyzing compounds or genes that induce, or are involved with, this important function of the mature ...Assess the In Vivo Activation of Signal Transduction Pathways with PathDetect Reporting Systems
...one of the following enhancer elements: cyclic AMP response element (CRE), serum response element (SRE), nuclear factor B (NF- k B), activator protein 1 (AP-1), serum response factor...Detect Single Nucleotide Sequence Changes with Mx4000 Molecular Beacon Allelic Discrimination Kits
...nynondisease traits, such as obesity and a persons response to drugs. Moreover,single nucleotide polymorphisms (SNPs) are valuable genetic markers to use forgene discovery, population studies, and individual identification. The demand isgrowing in the clinical research field for high-throughput screeningmetho...Versatile Vectors for Ponasterone A- Inducible Control of Gene Expression in Mammalian Cells
... results in Figure 5B indicate, a linear response was observed from 80 nM ponA (four fold: the lowest concentration tested) to 10 M. To more directly assess the control of protein expression in this cell line, we performed a Western blot. Lysates from uninduced cells and cells...Reliable Assessment of Micronuclei for Genotoxicity Testing in Mice or Rats
...ale BALB/c mice, were given 0.9% saline and a dose response of potassium chromate (K2CrO4) (12.5, 25, and 50 mg/kg body weight) via intraperitoneal injections. Chemicals were delivered in a volume of 25 ml/kg body weight at times 0, 24, and 48 hours. Twenty four hours after the...High-Level Protein Expression, One-Column Purification, and FLAG Epitope Tagging in E. coli
...criptional activity of c-Jun is greatly enhancedin response to phosphorylation. 7 JNK binds to the c-Juntransactivation domain and phosphorylates Ser-63, Ser-73, and some secondarysites. To demonstrate the utility of a FLAG-fusion protein with the CBP tagremoved, we performed an immunoaffinity pull-down of c...Signal Transduction Reporting Systems Using Cis-Acting Enhancer Elements
...one of the following enhancer elements: cyclic AMP response element (CRE), serum response element (SRE), nuclear factor k B (NF- k B), activator protein 1 (AP-1) or serum re...Sex Steroid Regulation of Vasopressin Levels Secreted by hNT Neurons*
...ear toincrease total neuronal protein synthesis in response to dihydrotestosterone. Conclusions Stratagenes hNT Neurons provide a viable model that may resemble the humanaging brain more closely than previous animal models. Our results show thatthese neurons respond to various sex steroids and to varying co...Stable HeLa Luciferase Reporter Cell Lines Expressing GAL4 Fusion Transactivators
...n with G418, we chose the clones thatgave the best response when transfected with the positive control vectors fromthe PathDetect kits. These clones were then subjected to more extensiveanalysis. Testing Stable Cell Lines Fig.2 Genomic DNA from each stable clone was prepared and used as a t...Enzyme Immunoassay for Studying Intracellular Levels of cAMP
...ions, the involvement of cAMPgreatly amplifies the response to a hormonal stimulus. Nonradioactive Detection of cAMP ...Identification of Differentially Expressed Gene Products with the CastAway System*
...ly genes whose expression was modulated in response to this treatment. Messenger RNA was isola... 3 of these products was down regulated in response to PMA, whereas the expression of 11 products was elevated. Primers 1 and 2 yielded differen...RT-PCR Primers for the Study of Apoptosis
...cKenzie PeterPingerelli Stratagene The apoptotic response is a complex biological process that requires ther... dying cell iseliminated although the inflammatory response is not induced. Primer Design Stratagene has developed reverse transcriptase-mediated polymerase c...New Reporter Plasmids for Studying Interferon-Stimulated Signal Transduction Pathways
...nique gamma-activated sequence (GAS), is formed in response to IFN- g . 3 The mechanism of the activation and ...the ISG54 gene and is referred to asIFN-stimulated response element (ISRE). 7 To create the pISRE-Lucplasmid, we inserted five direct repeats of this ISRE upst...Sequence-Validated and Expression-Tested Human cDNA in a Dual Expression Vector
...rs, oncogenes, cytochromes,proteases, inflammatory response proteins, cellular matrix proteins, metabolicproteins, synthases, esterases, zinc-finger proteins, and ribosomal proteins.For further information regarding clone selection and availability, visit www.stratagene.com. Validated Nucleotide Sequence Th...High-throughput gene expression analysis to screen for anti-asthma drugs
...yze expression of different cytokines in response to drug candidates. High-throughput drug screening using these technologies enables identification of specific potential drugs to combat asthma. Reference 1. Pahl, A. (2002) Manuscript in preparatio...QIAGEN Instrument Service - insist on the best in service and support
...pport Agreements can include: Rapid response - through top priority dispatching, to minimize downtime Annual Preventive Maintenance Visit - including thorough maintenance planning In-house operator training - general or tailored to your applications ......a complex matrix. 2) Demonstrate a dynamic linear response ofmethod more suitable for pharmacokineticapplicat...macokinetic analyses. It is typical for the response of older generationmass spectrometers to be nonlinear and/or fordetector saturation to occur for lin...... short-term memory, the immune response and the cell cycle implicating it in AIDS, Alzheimers, certain cancers, and other diseases. Discussion MS analysis of 900 fmoles of tryptic digest of oxidized CaM revealed 13 peptide fragment......urve. The internal standard peak area response was 3.1% cv for 121 injections (Figure 7). ... Figure 7: Internal Standard area response The calibration curve was used to calculate the values of the eight replicat......ndtwo heavy amino acid chains.They are produced in response tothe invasion of foreign moleculesin the body. Antibodies can bedivided into five subclasses basedon their heavy chain: IgG, IgM,IgA, IgD and IgE. The mostcommonly used antibody for specificprotein detection is IgG,which can be cleaved by the protea......chingthe circulation may be killed by anindividual response of the immunesystem but the metastatic potentialof remaining tumor cells cannot beruled out. The presence of disseminatedtumor cells in systemic circulationis an indication for tumorrelapse. Their early detection followedby an immediate and possiblye...Rapid hit confirmation and early hERG liability testing using the IonWorks HT system
... activity on the Na v 1.5 channel. The dose response curves of rimcazole were subsequently obta...s shown in Figure 2, Panel A, and the dose response curve is shown in Figure 2, Panel B. Raw data traces of control and rimcazole inhibited curr...... by AcuityXpress, demonstrating the dose-dependent response of the assay. For EC 50 and IC 50 calculations, Hill curve fitting was performed on pit or vesicle area per cell, averaged across all replicate wells on the plate, plotted against compound co...Bacterial RNA Isolation From Infected Eukaryotic Hosts
...olutionizing our understanding of the host response to bacterial infection. Numerous studies h...low host cell transcriptome alterations in response to interactions with bacteria. However, because no method has existed to isolate bacterial R...Bacterial RNA Isolation From Infected Eukaryotic Hosts
...olutionizing our understanding of the host response to bacterial infection. Numerous studies h...low host cell transcriptome alterations in response to interactions with bacteria. However, because no method has existed to isolate bacterial R...Delivering siRNA Using Adenoviral Vectors
... recombinant adenoviruses elicit an immune response in animal systems, these viral vectors are appropriate only for transient RNA expression but are well suited for gene-therapy. Ambion's new p Silencer adeno 1.0-CMV System combines ...Designing Controls for siRNA Experiments
...t up-regulation of the antiviral response may be a useful indicator of nonspecific ... routinely monitor the antiviral response in our own experiments, there are several published reports on how this response c...Optimizing Chemical Transfection and Electroporation of siRNAs
... shown to activate the nonspecific interferon response in mammalian cells (7). Plasmid DNA preparations must be free from contaminating nucleic acid and bacterial components such as endotoxins. The optimal concentration of the nucleic acid ...Determinants of RNA Integrity and Purity
...plex series of responses that are set in motion in response to insult, as well as the interval between the time of injury and tissue preservation. The mechanisms of RNA degradation can be both complex and varied, as is the resulting impact on the ...Optimum FFPE RNA Isolation Kit
...ble the correlation of molecular findings with the response to treatment and the clinical outcome. Why is RNA isolation from FFPE such a challenge? The recovery of quality RNA from FFPE specimens can be quite challenging. The ...miRNA Expression in White Blood Cells
...ll RNA molecules has exploded in response to these discoveries. However, standard RNA isolation and quantitation techniques have been optimized for larger RNAs and are not always favorable for recovering and analyzing smaller RNA species....Optimizing siRNA Transfection for RNAi
...xpression by activating the nonspecific interferon response [3]. The optimal concentration of siRNA is influenced by several factors including properties of the target gene and cell type. As mentioned above, too much siRNA may lead to off-target effec...Getting Started with MicroRNA Research
...a specific biological process in response to up- or down-regulation of miRNA activity. Depending on pre-existing information about potential miRNA function (e.g., miRNA expression patterns or levels in various cell types), individual or a...Optimize Transfection of siRNAs for RNAi
...to activate the nonspecific interferon response (Stark et al., 1998). The optimal concentration of siRNA is influenced by several factors including properties of the target gene, cell type, and target. Too much siRNA may result in cytotoxicity. Conversely, if to...Precursor miRNAs for Successful miRNA Functional Studies
... at different concentrations, facilitating dose response studies. The rules for miRNA maturation and activation from pri-miRNA and pre-miRNA precursors are not fully understood, making it difficult to ensure uptake and ...Reagents for Up and Down-Regulation of miRNA Activity in Mammalian Cells
...en be monitored for a phenotypic response making it possible to identify miRNAs that are involved in various biological processes. As an example, we transfected HeLa cells with inhibitors targeting 90 different human miRNA......t mammalian cells mount a potent antiviral response upon introduction of dsRNA longer than 30 bp, researchers transfect cells with 2123 bp siRNAs to induce RNAi in these systems without eliciting the antiviral response. Figure 1. Overview of RNA Interference. ...siRNA Design: It's All in the Algorithm
... binding proteins that stimulate antiviral response pathways are more likely to be activated and induce the expression of antiviral response genes. Another important advantage to using less siRNA for silencing experiments is that tra...RNAlater Around the World: The Art of Processing Difficult Samples
...gene expression profiles related to ex vivo stress response pathways or to RNA degradation were reduced. To learn more, see Genes Immun (2004) 5 : 347-353. Environmental Bacteria--Netherlands Antilles To study differential gene ex...Using Validated siRNAs in Functional Genomic Assays
... siRNAs and assayed for distinct response profiles such as cell cycle arrest. ... Screening (HCS), has built cellular response profiles for several of Ambion's Silencer Validated siRNAs, ut...RNA Interference and Gene Silencing: History and Overview
... have shown that the dsRNA-induced antiviral response is absent from mouse embryonic stem (ES) cells and...e specific mammalian cells. However, the antiviral response precludes the use of long dsRNAs to induce RNAi in most other mammalian cell types. ...Isopure - Buccal cell DNA isolation
...igh non-specific binding. The fast magnetic response time, extremely slow settling rates, and a high-surface area to mass ratio of the Sera-Mag microparticles make SPRI cost effective, highly efficient and automation-friendly. RECOVERY AND YIELD: The Isopure Bucc...SeeSNP Propietary Analysis Advantages
...ing genetic variation and its relationship to drug response and disease susceptibility is becoming an increasingly important consideration in drug design and clinical trials. Since the completion of the Human Genome Project, the majority of human genes can be readily resequenced ...Purification of Two Isoforms of Pyruvate Kinase from Nordic Krill Using an UNO Q1 Column, Rev A
... in invertebrates, regulation of PK activity in response to changes in temperature and oxygen regimes was found to occur in marine mollusks. Others reported changes in PK enzyme characteristics with temperature in fish and the intertidal mussels, suggesting that modification of the bioche......nd experiment, the duration and degree of antibody response generated following two gene gun vaccinati... in order to detect the subclass of antibody response generated. To determine the relative affinities of the anti-IgG 1 and anti-IgG 2a a...Inoculation of Viral RNA and cDNA to Potato and Tobacco Plants Using the Helios Gene Gun
... lesions as a result of the hypersensitive response to PVA. A few necrotic lesions characteristic of P...g a host that reacts with a hypersensitive response to virus infection (potato clone A6). The latter type of host is useful for an optimization ...... to be around 0.625 g/well. A similar dose response was observed with the Bio-Plex assay; howe... Total p38 MAPK was not detected, nor was a dose response observed with ELISA of HeLa lysates, even at the highest protein concentration tested ...Principles of Curve Fitting for Multiplex Sandwich Immunoassays, Rev B
...s to construct a plot of the concentration vs. the response using the linear portion of the response curve. This method has been used traditionally to quantitate results of ELISA and other immu...Selection of Standards for Bio-Plex Cytokine Assays, Rev A
... for Bio-Plex Assays Because the typical response of an immunoassay is nonlinear, the nonlinear ...lower points) that are used to predict the response of the assay (relative median fluorescence intensity, or MFI; Figure 1). Use of logistic reg...Application of the Bio-Plex Cell Lysis Kit in Western Blot Analysis of Phosphoproteins, Rev A
...s in protein phosphorylation that occur in response to ligand binding to cell surface receptors. The assay currently used in the AfCS Antibody Laboratory is multiplex western blotting with phosphorylation site-specific antibodies. While this approach has proven useful (Hsueh et...Feasibility of Multiplexing Bio-Plex Total Target and Phosphoprotein Assays
...sphorylation increased in HEK 293 cells in response to UV treatment, with the extent of increase depending on the phosphoprotein, as expected. The most dramatic signal increase was detected for phospho-c-Jun (Ser 63 ) (Figure 1E). At 0.6 g/ml protein, there was more than a 40-fo...The iCycler iQ Detection System for TaqMan Assays, Rev B
...ensitivity, uniformity and dynamic range of linear response to a variety of input sample concentrations. The iCycler iQ system demonstrates excellent performance characteristics in these areas. In this application note we illustrate the performance of the system when used with TaqMan ......The Experion system also provided a linear response over a concentration range of nearly three orders of magnitude, giving greater flexibility with sample loads. Taken together, the integrated, highquality components of the Experion system and Pro260 analysis kit offer an autom......hilum and an incomplete understandingof the immune response of fish to this pathogen. It hasbeen noted that pr...e components androles they play in the fish immune response are unknown.Significant protection has been observed under laboratoryconditions following immunizati...Biolistic Transfection of Organotypic Brain Slices
...ich expressed this construct extended processes in response to NT-3 (the neurotrophin ligand for TrkC)...the four cells grew extensive processes in response to NT-3 treatment, while those cells which were not green were non-responsive. Such experime...Cell Proliferation Assay Using the Benchmark Plus Microplate Spectrophotometer
... to measure cell viability and division in response to growth factors, cytokines, and nutrients, as well as growth inhibition by cytotoxic agents. The cell proliferation kit described here utilizes a microplate spectrophotometer to quantitate an assay based on XTT, a tetrazoliu...Use of the DCode System to Detect the Food-Borne Bacterial Pathogen Listeria monocytogenes
...e suspect microorganism(s) facilitate a more rapid response to the problem. Using the polymerase chain reaction (PCR), positive identification of L. monocytogenes can be established within 1248 h of sample collection. 1-3 Numerous PCR protocols have been developed for detection of L. m...... (EGFP) or Emerald fluorescent protein (eFP), or a response element controlling the expression of the nitrored...ibution of EGFP-GCCR protein was shown to alter in response to drugs, such as dexamethasone and prednisolone. <P >Quantitation of the EGFP signal from t...Is Z' factor the best assessment for the quality of cellular assays delivering higher content?
...tro assays involvesdividing the magnitude of assay response by the standarddeviation of the control (untreated) sample: We used this S:N calculation to assess assay performance ofeight replicate plates imaged and analyzed using the IN CellAnalyzer 1000. The S:N values obtained using this methodvaried gr......hondrial and nuclear status assays, the percentage response is calculated from the population-averaged Ngrain value, Ngrains being the number of grains detected per cell or per nucleus (depending on the assay). The Granularity Analysis Module is also used to determine cell number per image. Resul...Other ContentsneuropathyneuropathyneuropathyneuropathysmearsmearsmearsmearperitonitispersonalitypersonalitypersonalitypersonalitypertussispertussisperitonsillarpersonalpersonalpersonalpersonalpersonalpersonalpersonalpersonalpersonalpesticidespesticidespesticidespesticidesOther TagsFebFAKFAKOther Tagspermissible 2buying 2buying 3buying 4buying 5buying 6buying 7mere 2mere 3mere 4mere 5islands 2islands 3vegetation 2vegetation 3
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(Date:9/4/2008)...ry of the September 11 attacks approaches, the Ame...ast describing an array of technologies to help as...odcast is the sixth episode in ACS,s acclaimed Gl...ith new episodes posted twice monthly, Global Chal...n the 21st Century, and explains how chemists and ...
(Date:9/4/2008)... known as HACNS1, that may have contributed to the...and possibly also modifications in the ankle or fo...g to a paper published in Science on Sept. 5, 20...e of the existence of human-specific gene enhancer...me. , Dr. Shyam Prabhakar, first author of the...
(Date:9/4/2008)...of Cincinnati (UC) implicates the primary chemical...a risk factor for metabolic syndrome and its conse...man fat tissues, the UC team found that BPA suppre...ble for regulating insulin sensitivity in the body...r metabolic syndrome. , Metabolic syndrome is a...
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