10 minute cancer test on the horizon

10 minute cancer test on the horizon

Australian researchers said Wednesday that they have created a test that can detect cancer quickly and easily, with the goal of revolutionizing early detection.

Taking a different tack, he and his colleagues looked instead at patterns of molecules called methyl groups, which decorate the DNA and control which genes are switched on and off.

It turns out these structures stick to gold, so when cancerous DNA is put into a solution with gold nanoparticles, it attaches to them and instantly changes the colour of solution. Sign up today to get biotech news and updates delivered to your inbox and read on the go. In cancer cells, however, methyl groups only cluster in specific points.

One of the researchers, Dr Abu Sina, said: "The University of Queensland team discovered a unique DNA nanostructure that appears to be common to all cancers".

The test also works electrochemically by using flat gold electrodes and small amounts of purified DNA.

Meanwhile, as reported by the CNN, researchers at the John Hopkins University in the United States, also had announced earlier this year that they have developed CancerSEEK - a blood test that screen for 8 forms of common cancer types.

So far we have tested more than 200 tissue and blood samples, with 90 percent accuracy.

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The test, which has been performed with 90% accuracy on 200 samples of different types of cancers and healthy cells, is now at experimental stage and results require further validation through clinical trials before it can be made commercially available. This will serve as the initial test for the presence of cancer, and the doctors will conduct more focused studies.

The test uses gold particles, which bind with cancer-affected DNA and "can affect molecular behavior in a way that causes visible color changes", it added. Researchers have been looking for a less invasive diagnostic test that can detect cancers at an earlier stage.

The test has a sensitivity of about 90%, i.e.it will detect about 90 of the 100 cases of cancer. According to Trau, cancer cells released their DNA into blood plasma when they perished. "When cancer happens, the tree loses most of its decoration".

"It's just a simple blood test that you can see with a naked eye", said Professor Trau.

The researcher added that "it looks really interesting as an incredibly simple universal marker of cancer".

The technology has also been adapted for electrochemical systems that allow affordable and portable detection that could eventually be performed using a mobile phone. The only way to find out if there are risky cells in our bodies is by running periodically tests and going to see the doctor as soon as we are experiencing unusual health issues.

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