Researchers in Australia said this week they have discovered a potential new way of testing for cancer that takes less than 10 minutes. The story is getting lots of press. But when examined more carefully the new test may not be as exciting as it sounds. The overall picture is that this test will not be usable by people to diagnose or detect cancer in the human body for many, many years, but being able to harness a universal marker of cancerous DNA is promising.
The study from of the University of Queensland examined 72 tissue samples for how the DNA of cancer reacted differently than regular healthy human DNA in water, and how this could be used in a blood test to diagnose the presence of cancer. To do this, the researchers used microscopic particles that can detect the DNA signature of cancer and change color when it was present in water.
Read MoreFurther, it’s important to note that this method of DNA detection was only tested with cells of certain types of cancer including breast, colorectal, prostate and lymphoma. More information is also needed about the sensitivity and specificity of the test in order to understand how applicable it will be. “Those two things help us understand how useful screening tests are,” Dr. Yeo explains. “If they are sensitive, but not specific they may have false positives, which can lead to unnecessary testing and worry. If it it specific but not that sensitive it may miss cancers.”
We will continue to track updates as more studies are done in years to come.
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