نتایج جستجو برای: q pcr

تعداد نتایج: 295197  

2017
Kumar Singh

Background: A simple and reliable DNA extraction & quantification method of hepatitis B virus (HBV) is critical in developing a viral load measurement for HBV infection. Current commercially available plasma Hepatitis B Virus (HBV), DNA extraction & quantification methods are less sensitive and require optimization, which restrict wide adoption in clinical laboratories. This study offers a repo...

Journal: :Applied and environmental microbiology 2006
David Rodríguez-Lázaro Deborah A Lewis Alain A Ocampo-Sosa Ursula Fogarty László Makrai Jesús Navas Mariela Scortti Marta Hernández José A Vázquez-Boland

We developed a novel quantitative real-time PCR (Q-PCR) method for the soil actinomycete Rhodococcus equi, an important horse pathogen and emerging human pathogen. Species-specific quantification was achieved by targeting the chromosomal monocopy gene choE, universally conserved in R. equi. The choE Q-PCR included an internal amplification control (IAC) for identification of false negatives. A ...

Journal: :PLoS Neglected Tropical Diseases 2009
Tomas Duffy Margarita Bisio Jaime Altcheh Juan Miguel Burgos Mirta Diez Mariano Jorge Levin Roberto Rene Favaloro Hector Freilij Alejandro Gabriel Schijman

BACKGROUND This report describes a real-time PCR (Q-PCR) strategy to quantify Trypanosoma cruzi (T. cruzi) DNA in peripheral blood samples from Chagas disease patients targeted to conserved motifs within the repetitive satellite sequence. METHODOLOGY/PRINCIPAL FINDINGS The Q-PCR has a detection limit of 0.1 and 0.01 parasites/mL, with a dynamic range of 10(6) and 10(7) for Silvio X10 cl1 (T. ...

A quantitative TaqMn Real-Time PCR assay was developed and its diagnostic value on human serum and livestock samples were evaluated. Brucella species could be distributed through communities as a biological agent. Rapid detection of biological threat agents is critical for timely therapeutic administration. Quantitative real-time PCR provides a rapid, sensitive and specific tool for molecular i...

Journal: :Journal of water and health 2009
Izhar U H Khan Alyssa Loughborough Thomas A Edge

The present study was designed to develop a novel, rapid, direct DNA-based protocol to enumerate aeromonads in recreational waters. An Aeromonas genus-specific real-time quantitative polymerase chain reaction (Q-PCR) protocol was developed and optimized using newly designed genus-specific oligonucleotide primers derived from the gyrase B subunit (GyrB) gene. A standard curve was developed based...

Journal: :Taiwanese Journal of Obstetrics and Gynecology 2006

Journal: :Journal of clinical microbiology 2012
Nicolas Wentzensen Patti E Gravitt Rodney Long Mark Schiffman S Terence Dunn J Daniel Carreon Richard A Allen Munira Gunja Rosemary E Zuna Mark E Sherman Michael A Gold Joan L Walker Sophia S Wang

Carcinogenic human papillomavirus (HPV) infections are necessary causes of most anogenital cancers. Viral load has been proposed as a marker for progression to cancer precursors but has been confirmed only for HPV16. Challenges in studying viral load are related to the lack of validated assays for a large number of genotypes. We compared viral load measured by Linear Array (LA) HPV genotyping w...

2014
Ilaria S. Pagani Orietta Spinelli Elia Mattarucchi Cristina Pirrone Diana Pigni Elisabetta Amelotti Silvia Lilliu Chiara Boroni Tamara Intermesoli Ursula Giussani Luigi Caimi Federica Bolda Renata Baffelli Eleonora Candi Francesco Pasquali Francesco Lo Curto Arnalda Lanfranchi Fulvio Porta Alessandro Rambaldi Giovanni Porta

Imatinib mesylate (IM) is the first line therapy against Chronic Myeloid Leukemia, effectively prolonging overall survival. Because discontinuation of treatment is associated with relapse, IM is required indefinitely to maintain operational cure. To assess minimal residual disease, cytogenetic analysis is insensitive in a high background of normal lymphocytes. The qRT-PCR provides highly sensit...

Journal: :Toxicological sciences : an official journal of the Society of Toxicology 2007
Zhaobin Zhang Jianying Hu

The quantitative real-time reverse transcription polymerase chain reaction (Q-RT-PCR) technique has been increasingly used in endocrine disrupting chemicals (EDCs) research. Usually, an appropriate endogenous control gene is critical for Q-RT-PCR to normalize the errors and sample-to-sample variations that occur in the course of tissue collection, RNA isolation, and RT-PCR. In this study, we cl...

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