Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Researchers Create Method to Rapidly Identify Specific Strains of Illness

11.07.2013
Researchers from Boston University School of Medicine (BUSM) and George Washington University (GWU) have developed a method to rapidly identify pathogenic species and strains causing illnesses, such as pneumonia, that could help lead to earlier detection of disease outbreaks and pinpoint effective treatments more quickly. The findings are featured online in the journal Genome Research.

Emerging sequencing technologies have revolutionized the collection of genomic data for bioforensics, biosurveillance and for use in clinical settings. However, new approaches are being developed to analyze these large volumes of genetic data.

Principal investigator Evan Johnson, PhD, assistant professor of medicine at BUSM, and Keith Crandall, PhD, director of the Computational Biology Institute at GWU, have created a statistical framework called Pathoscope to identify pathogenic genetic sequences from infected tissue samples.

This unique approach can accurately discriminate between closely related strains of the same species with little coverage of the pathogenic genome. The method also can determine the complete composition of known pathogenic and benign organisms in a biological sample. No other method can accurately identify multiple species or substrains in such a direct and automatic way. Current methods, such as the standard polymerase chain reaction detection or microscope observation, are often imperfect and time-consuming.

“Pathoscope is like completing a complex jigsaw puzzle. Instead of manually assembling the puzzle, which can take days or weeks of tedious effort, we use a statistical algorithm that can determine how the picture should look without actually putting it together,” said Johnson. “Our method can characterize a biological sample faster, more accurately and in a more automated fashion than any other approach out there.”

This work will be relevant in a broad range of scenarios. For example, in hospitals, this sequencing method will allow for rapid screening of thousands of infectious pathogens simultaneously, while being sensitive enough to monitor disease outbreaks caused by specific pathogenic strains. Veterinarians can even apply the method in their practices. This research is also applicable outside of clinical settings, allowing officials to quickly identify agents of bioterrorism (e.g. in a tainted letter) and harmful pathogens on hard surfaces, soil, water or in food products.

“This approach has the ability to drastically change the process for identifying and combating pathogens, whether they’re in a hospital, veterinarian’s office or salmon stream,” Crandall said. Researchers plan to conduct more studies to further verify the efficacy of their approach, and will soon begin to work with the aquaculture industry, helping fishermen with water-quality surveillance.

Funding for this research was provided in part by the National Institutes of Health’s (NIH) National Human Genome Research Institute under grant award number R01HG00569.

Gina Orlando | EurekAlert!
Further information:
http://www.bmc.org

More articles from Life Sciences:

nachricht New photocatalyst speeds up the conversion of carbon dioxide into chemical resources
29.05.2017 | DGIST (Daegu Gyeongbuk Institute of Science and Technology)

nachricht Copper hydroxide nanoparticles provide protection against toxic oxygen radicals in cigarette smoke
29.05.2017 | Johannes Gutenberg-Universität Mainz

All articles from Life Sciences >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Strathclyde-led research develops world's highest gain high-power laser amplifier

The world's highest gain high power laser amplifier - by many orders of magnitude - has been developed in research led at the University of Strathclyde.

The researchers demonstrated the feasibility of using plasma to amplify short laser pulses of picojoule-level energy up to 100 millijoules, which is a 'gain'...

Im Focus: Can the immune system be boosted against Staphylococcus aureus by delivery of messenger RNA?

Staphylococcus aureus is a feared pathogen (MRSA, multi-resistant S. aureus) due to frequent resistances against many antibiotics, especially in hospital infections. Researchers at the Paul-Ehrlich-Institut have identified immunological processes that prevent a successful immune response directed against the pathogenic agent. The delivery of bacterial proteins with RNA adjuvant or messenger RNA (mRNA) into immune cells allows the re-direction of the immune response towards an active defense against S. aureus. This could be of significant importance for the development of an effective vaccine. PLOS Pathogens has published these research results online on 25 May 2017.

Staphylococcus aureus (S. aureus) is a bacterium that colonizes by far more than half of the skin and the mucosa of adults, usually without causing infections....

Im Focus: A quantum walk of photons

Physicists from the University of Würzburg are capable of generating identical looking single light particles at the push of a button. Two new studies now demonstrate the potential this method holds.

The quantum computer has fuelled the imagination of scientists for decades: It is based on fundamentally different phenomena than a conventional computer....

Im Focus: Turmoil in sluggish electrons’ existence

An international team of physicists has monitored the scattering behaviour of electrons in a non-conducting material in real-time. Their insights could be beneficial for radiotherapy.

We can refer to electrons in non-conducting materials as ‘sluggish’. Typically, they remain fixed in a location, deep inside an atomic composite. It is hence...

Im Focus: Wafer-thin Magnetic Materials Developed for Future Quantum Technologies

Two-dimensional magnetic structures are regarded as a promising material for new types of data storage, since the magnetic properties of individual molecular building blocks can be investigated and modified. For the first time, researchers have now produced a wafer-thin ferrimagnet, in which molecules with different magnetic centers arrange themselves on a gold surface to form a checkerboard pattern. Scientists at the Swiss Nanoscience Institute at the University of Basel and the Paul Scherrer Institute published their findings in the journal Nature Communications.

Ferrimagnets are composed of two centers which are magnetized at different strengths and point in opposing directions. Two-dimensional, quasi-flat ferrimagnets...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Marine Conservation: IASS Contributes to UN Ocean Conference in New York on 5-9 June

24.05.2017 | Event News

AWK Aachen Machine Tool Colloquium 2017: Internet of Production for Agile Enterprises

23.05.2017 | Event News

Dortmund MST Conference presents Individualized Healthcare Solutions with micro and nanotechnology

22.05.2017 | Event News

 
Latest News

New insights into the ancestors of all complex life

29.05.2017 | Earth Sciences

New photocatalyst speeds up the conversion of carbon dioxide into chemical resources

29.05.2017 | Life Sciences

NASA's SDO sees partial eclipse in space

29.05.2017 | Physics and Astronomy

VideoLinks
B2B-VideoLinks
More VideoLinks >>>