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Improving the efficiency of 384 "mini-tube" technology using mosquito nanlolitre pipetting
Joby Jenkins, Wayne Bowen, Rob Lewis & Chloe Milburn

384-well plate “mini-tube” consumables have been developed by automation companies such as REMP and The Automation Partnership (TAP) to hold compound samples divided into single-use storage tubes. Each tube holds 40 -75 µL, and is filled, sealed, stored and then thawed just once before use. However, when accessed by conventional pipetting technology, the tube’s practical working volume is as little as 20 µL, which means high compound wastage. The seal must also be pierced prior to pipetting to p

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Application of genetic programming in analysis of quantitative gene expression profiles for identification of nodal status in bladder cancer
Anirban P. Mitra, Arpit A. Almal, Ben George, David W. Fry, Peter F. Lenehan, Vincenzo Pagliarulo, Richard J. Cote, Ram H. Datar, William P. Worzel

Nodal involvement in bladder cancer is an independent indicator of prognosis. This study employed an iterative machine learning process called genetic programming on quantitative expression values of 70 genes to classify primary urothelial carcinoma samples into those associated with or without nodal metastasis. The generated rules showed a strong predilection for ICAM1, MAP2K6 and KDR resulting in gene expression motifs that cumulatively suggested a pattern ICAM1>MAP2K6>KDR for node positive ca

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How to Perform High Throughput siRNA Transfection
Mark Hewitson, Hanno Hermann and Neil Benn

We demonstrate the optimization of siRNA transfection process for time and costs in a high throughput application with two independent measurements of the RNAi effect: The visual monitoring of Eg5 expression and the quantitative PCR measurement of GAPDH mRNA after transfection of Hela cells. The results show, that 1 wash cycle is sufficient for the removal of any remnants of the transfection complex from disposable tips, making the tips re-usable.

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Quantification of siRNA by a Novel Competitive-qPCR Method
Wei-li, Liu., Mark Stevenson and Len Seymour

We have developed a competitive qPCR method in which siRNA competes with a homologous forward primer to bind template DNA, giving siRNA concentration dependent inhibition. The addition of E6-siRNA to cqPCR led to inhibition of amplification in a linear concentration-dependent manner, with as little as 200pg of siRNA capable of being detected. Irrelevant siRNA had no effect on amplification confirming specificity

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Quantification of siRNA by a Novel Competitive-qPCR Method
Wei-li, Liu., Mark Stevenson and Len Seymour

We have developed a competitive qPCR method in which siRNA competes with a homologous forward primer to bind template DNA, giving siRNA concentration dependent inhibition. The addition of E6-siRNA to cqPCR led to inhibition of amplification in a linear concentration-dependent manner, with as little as 200pg of siRNA capable of being detected. Irrelevant siRNA had no effect on amplification confirming specificity

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The Silencing of Multidrug Resistance-Associated Protein 5 by siRNA Complexes
M.Malinen, E.Mannermaa, T.Ryhänen, E.Kuusela, M.Häkli, M.Yliperttula and A.Urtti

The purpose is to study the role of multidrug resistance-associated protein 5, MRP5 in drug metabolism in human retinal pigment epithelium (RPE). RPE forms the outer part of blood-retinal barrier (BRB) which restricts movements of solutes from systemic bloodstream to the neural retina. The efflux protein, MPR5 is expressed in RPE but its functions are mainly unknown. SiRNA will be tested as a tool to clarify the role of MRP5.

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Caveolin-1 Expression as a Possible Biomarker in Pancreatic Cancer Diagnosis
C. Tanase, E. Raducan, L. Albulescu, E. Codorean, M.I. Nicolescu, D.I. Popescu, M.L. Cruceru and A.C. Popa

Caveolin1 (Cav-1) function either as a tumor supressor or as a promoter of metastasis. Overexpresion of cav-1 was correlated with: tumoral grading, proliferration markers (Ki67, p53), serum tumor markers (CEA, CA19.9) and angiogenic markers (VEGF, bFGF).

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New Transcripts Identified for S. cerevisiae, S. pombe and Drosophila Using Novel cDNA Cloning
Les Hoffman, Janina Gornemann, Erica Rodriguez and David Brow

Unannotated transcripts, including antisense, noncoding, intergenic, and potential regulatory RNAs, were identified in three different eukaryotic model organisms by cDNA cloning and sequencing. A rapid double-stranded cDNA generation system will be described.

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Preliminary Report: The Geriatric Propamed Study: Prospective pharmacopgenetics in geriatrics
Dr LS Griffith, Dr L Chialda and Dr A Pahl

In a worldwide first proscpective phamacogenetic study preliminary results show reduction of adverse drug reactions and hospitilisation stays for geriatric patients after pharmacogenetic testing and medication interaction analysis to fit the medicine to the patient.

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Scientific News
New Genomic Research Amends Earlier Triple Negative Breast Cancer Finding
Previously reported molecular finding unable to be validated.
LifeCodexx Reports Successful Proof-of-Principle of Innovative PCR-based NIPT Assay
Breakthrough potential as affordable NIPT solution on global basis.
Blood Test Trumps Accuracy of Standard Screening in Detecting Down Syndrome in Early Pregnancy
A blood test undertaken between 10 to 14 weeks of pregnancy may be more effective in diagnosing Down syndrome and two other less common chromosomal abnormalities than standard non-invasive screening techniques.
Highly Sensitive Detection Of Malaria Parasites
New assays can detect malaria parasites in human blood at very low levels and might be helpful in the campaign to eradicate malaria, reports a study published in PLOS Medicine.
Selection of Reference Genes for Quantitative RT-PCR Analysis
The expression stability of 12 commonly used reference genes was analysed.
‘Liquid Biopsies’ Could Help Spot Genetic Faults in Lung Cancer
Study analyze blood samples from 97 patients who took part in the EURTAC clinical trial.
Accurate Determination of Copy Number States for Multiallelic Copy Number Variations
Researchers use next-generation sequencing (NGS) and Bio-Rad’s Droplet Digital PCR (ddPCR™) technology to solve the technical challenge.
More DNA & Extra Copies of Disease Gene in Alzheimer’s Brain Cells
Scientists at The Scripps Research Institute (TSRI) have found diverse genomic changes in single neurons from the brains of Alzheimer’s patients, pointing to an unexpected factor that may underpin the most common form of the disease.
Single-Cell, 42-plexed Protein Analysis Achieved with a New Microchip Technology
A novel microdevice capable of detecting 42 unique immune effector proteins has been developed.
Quickly Tracing The Source Of Tainted Food
Technology can trace contaminated food to its source.
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