Polymerase Chain Reaction News and Research

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Polymerase chain reaction (PCR) is a revolutionary laboratory technique that enables the replication of a specific DNA sequence. Using PCR, millions of copies of a target DNA can be easily synthesized within a short period of time.

PCR testing for B. burgdorferi bacteria in joint fluid may confirm Lyme arthritis diagnosis

New research shows that polymerase chain reaction testing for Borrelia burgdorferi DNA—the spirochetal bacteria transmitted by deer ticks—in joint fluid may confirm the diagnosis of Lyme arthritis, but is not a reliable indicator for active joint infection in patients whose arthritis persists after antibiotic therapy. Findings of this study are published in Arthritis & Rheumatism, a journal of the American College of Rheumatology.

13 May 2011

'Healthy' smokers have gene expression profiles similar to COPD patients

'Healthy' smokers experience changes in the gene expression of their lungs similar to that suffered by smokers who have developed Chronic Obstructive Pulmonary Disease (COPD). This is the conclusion of a new study, led by Catalan researchers, which confirms the crucial role that smoking plays in causing these alterations.

10 May 2011

Roche seeks FDA clearance for fully automated Chlamydia and gonorrhoeae test

Roche announced today that it has filed for FDA clearance of its Chlamydia trachomatis and Neisseria gonorrhoeae (CT/NG) tests.

7 May 2011

Quest Diagnostics' Simplexa C. difficile test is now available in Europe

Quest Diagnostics Incorporated, the world's leading provider of diagnostic testing, information and services, today announced the availability in Europe of the Simplexa C. difficile Universal Direct test on the 3M Integrated Cycler.

From Quest Diagnostics 6 May 2011

Diagnostic test Xpert MTB/RIF proven fast and effective in low-resource settings

The Lancet published a significant development for TB diagnostics yesterday with concrete and encouraging study outcomes on the effectiveness of the new Xpert MTB/RIF test for TB and rifampicin resistance in realistic health care field conditions. One of the authors, Prof. Mark Nicol of the University of Cape Town (South Africa) who contributed to this study, is an EDCTP Senior Fellow. The article demonstrates that the test can effectively be used in low-resource settings to simplify early and accurate diagnosis of patients. The potential impact is a reduction in the morbidity associated with diagnostic delay, dropout and mistreatment. The article has appeared online on 19 April 2011 and will be published in volume 377 on 30 April 2011.

20 Apr 2011

NIST's new reference can aid in Huntington's disease diagnosis

A new Standard Reference Material from the National Institute of Standards and Technology will help clinical genetics labs accurately diagnose Huntington's disease, an inherited degenerative brain disorder that usually begins between ages 35 and 50 and progressively leads to physical impairment, dementia and death.

15 Apr 2011

Scientists develop new method to detect virus presence in cells

Scientists at the Naval Research Laboratory Center for Bio-Molecular Science and Engineering have developed a method to detect the presence of viruses in cells and to study their growth.

12 Apr 2011

Roche LightCycler 480 PCR System to be used at Koch Institute for advanced cancer research

Roche announced today that the David H. Koch Institute for Integrative Cancer Research at MIT will be using the Roche LightCycler® 480 System, a real-time polymerase chain reaction (PCR) system for the analysis of gene expression and genetic variation, in advanced cancer research.

From Roche Sequencing and Life Science 7 Apr 2011

Quest Diagnostics Simplexa molecular test receives bronze award for best new product

Quest Diagnostics Incorporated, the world's leading provider of diagnostic testing, information and services, today announced that the Simplexa™ molecular test on the 3M™ Integrated Cycler was honored with a bronze award for best new science and medical diagnostic product during the 2011 Edison Awards gala ceremony last night in New York City.

From Quest Diagnostics 7 Apr 2011

Retrovirus XMRV may not be associated with Chronic Fatigue Syndrome in the central nervous system

There has been substantial mystery surrounding the origins of Chronic Fatigue Syndrome (CFS), a condition affecting as many as four million Americans and marked by symptoms that include a sense of weariness that sleep does not improve and difficulty with memory and concentration.

6 Apr 2011

Life Technologies launches new TaqMan Mutation Detection Assays

Life Technologies Corporation today announced the launch of its TaqMan Mutation Detection Assays -- highly sensitive and novel molecular analysis research tools with the precision to detect a single mutant molecule hiding in a background of 1 million normal copies.

4 Apr 2011

Autoimmune response mediated by T lymphocytes may play vital role in pathogenesis of biliary atresia

Biliary atresia (BA) is an inflammatory obliterative cholangiopathy with unknown etiology, leading to progressive fibrosis and cirrhosis. Microarray technology, emerged as an indispensable research tool for gene expression profiling, has been used to study the mechanism underlying BA, and allows the simultaneous analysis of thousands of transcripts within a single experiment.

9 Mar 2011

Viruses that are natural part of human genome may retrovirus culprit

A retrovirus that inserted itself into the human genome thousands of years ago may be responsible for some cases of the neurodegenerative disease amyotrophic lateral sclerosis (ALS), also known as Lou Gherig’s disease. The finding, made by Johns Hopkins scientists, may eventually give researchers a new way to attack this universally fatal condition.

2 Mar 2011

Genomic Health to present prostate cancer studies at ASCO Genitourinary Cancer Symposium

Genomic Health, Inc. today announced the presentation of two studies at the American Society of Clinical Oncology® (ASCO®) Genitourinary (GU) Cancer Symposium, including complete results from its prostate cancer gene identification study, which identified 295 genes strongly associated with clinical recurrence following radical prostatectomy with great consistency across multiple tumor samples examined in each patient.

17 Feb 2011

Abbott's Ibis, PLEX-ID technologies identify causative organism of plague in Afghanistan

Today, at the American Society for Microbiology Conference on Biodefense and Emerging Diseases, scientists from Abbott Molecular presented data showing the unique power of the company's Ibis technology to identify and further characterize unknown disease-causing pathogens to help aid in the bioforensic analysis of pandemic outbreaks.

8 Feb 2011

Breakthrough in Thermal Gradient's fast PCR technology for molecular diagnostics

Thermal Gradient, a Rochester, NY biotech company, announces a breakthrough in its fast PCR technology for molecular diagnostics. PCR is the preferred critical step in virtually all forms of DNA testing.

8 Feb 2011

Roche launches cobas TaqScreen DPX Test for parvovirus B19 and hepatitis A virus

Roche announced today that the cobas® TaqScreen DPX Test for use on the cobas s 201 system is now available in the US. It is the first commercial test to quantify parvovirus B19 and detect hepatitis A virus (HAV) simultaneously in one assay in human plasma.

5 Feb 2011

OraSure to introduce QuickFlu test for detection of type A and type B influenza

OraSure Technologies, announced today the impending launch of the OraSure QuickFlu Rapid Flu A+B Test, a U.S. Food and Drug and Administration approved in vitro rapid qualitative test for the detection of influenza type A and type B, including H1N1 viral infections.

11 Jan 2011

Alnylam presents ALN-VSP Phase I trial results for liver cancer

Alnylam Pharmaceuticals, a leading RNAi therapeutics company, today presented new clinical data from its ALN-VSP Phase I liver cancer trial in a presentation at the Dana-Farber Cancer Institute in Boston. Results from molecular analysis of human biopsy samples showed achievement of pharmacologically relevant siRNA drug levels in tissues.

5 Jan 2011

Celera seeks FDA premarketing approval for KIF6 Genotyping Assay

Celera Corporation today announced that it has submitted a Premarket Approval Application (PMA) to the U.S. Food and Drug Administration (FDA) for its KIF6 Genotyping Assay, a new molecular In Vitro diagnostic (IVD) test designed to detect a marker for risk of coronary heart disease (CHD) independent of traditional risk factors and aid clinical evaluation when statin treatment is being considered.

3 Jan 2011