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Evaluation of microfluidic digital PCR for the detection of cancer biomarkers
Rebecca Sanders, Claire Bushell, Carole Foy, Daniel J. Scott. LGC

dPCR is achieved by sample partitioning prior to PCR amplification such that each reaction chamber contains one copy or less of target DNA. This dilution becomes the limiting factor and an accurate target molecule count is achievable. This study evaluates dPCR’s quantitative capabilities and investigates parameters influencing copy number quantification, using the Fluidigm Biomark instrument. Biomark technology combines dPCR theory with a microfluidics platform.

A novel multiplex qPCR for the simultaneous detection of Salmonella spp., E. coli O157:H7 and Listeria monocytogenes from raw Atlantic Salmon fillets
Sonja S. Nitecki, Brian F. Carney, John W. Slater, Wolfram M. Bruck. CAMBio, Letterkenny Institute of Technology

A triplex qPCR assay was developed to screen for three major food-borne pathogens in fish. The assay is based on simultaneous qPCR amplification of specific target genomes using fluorophore labelled locked nucleic acid (LNA) TaqMan probes. The detection limit of the qPCR is 1 colony forming unit (cfu) per 1ml and the detection limit of the assay with 24h general enrichment is 1 cfu per 25g of fish meat.

SYBR® Green I as a biomarker for schizophrenia
Davood Zaeifi, Mehdi Rahmati, Vahab Piranfar. Islamic Azad University of Tonekabon

The purpose of this study were to examine if the mRNA of the peripheral dopamine receptor is changed in schizophrenia patients. 50 Naive patients were enrolled. After extracting RNA from white blood cells, cDNA is synthesized. After doing the quantitative Real-time PCR, expression of D3 receptors in healthy persons and patients were compared. Results of this examinations reveals that expression of D3 receptor is increased in compared with controls sample.

Evaluation of a Novel Approach for the Measurement of RNA Quality
Timothy Wilkes; Alison Devonshire; Carole Foy. LGC Limited

The potential medical applications of microarrays have generated much interest, within the biomedical community. Numerous potential sources of variation have raised concerns regarding assay consistency and data quality. Previous studies have highlighted RNA integrity as having a major effect on data quality. We describe here a comparison of the performance characteristics of the Agilent (Bioanalyser) and Lab901 (Screen Tape System) platforms, and their capacity to determine sample RNA integrity.

Microfluidic PCR device for diagnostic pathogen detection
Johannes R. Peham, Hannes Steiner, Walter Grienauer, Rudolf Heer, Michael J. Vellekoop, Christa Nöhammer, Herbert Wiesinger. Molecular Medicine Unit

In this work a microfluidic cyclic flow PCR device is presented, which is capable of replicating the bacterial genomic DNA sequence of the 16S ribosomal RNA. The standard laboratory processing time of 3 h could be decreased to 60 min with the microfluidic reactor without loosing PCR efficiency. Integrating an optical fluorescence detector for dsDNA measurement would evolve this device into a micro total analysis system.

Differential metabolic response of tomato hybrids to herbivory
Raghava T, Puja Ravikumar, Rajendra Hegde, Anil Kush. Vittal Mallya Scientific Research foundation, Bangalore, INDIA

In this study we have documented the HIPVs produced by different plant organs in three agronomically important Lycopersicon esculentem (tomato) cultivars in the event of herbivory. The nocturnal and diurnal feeding of third instar Spodoptera littura larvae induces characteristic VOCs mainly terpenes, in all the three hybrids viz., All Rounder, Shaktiman and Lakshmi.

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