Unique Blood Test Detects Five Types of Cancers FOUR YEARS Before Symptoms Appear


4It avoids invasive surgical methods of diagnosis

In a conventional cancer biopsy, a part of the organ has to be removed surgically and then sent for lab investigation for signs of cancers, tumor progression and disease. But now liquid biopsies are slowly gaining prominence and being more focused upon by research studies and teams worldwide. However, still only a few can spot tumors before they occur which is what makes this new test such an important tool in giving people at the risk of developing cancers a fighting chance.

It avoids invasive surgical methods of diagnosis

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5Researchers are hopeful about the results

Researchers are excited about the study results that was published in the Journal Nature Communications. They also issued a warning that it was still in the early stages of development and is too soon to say that it completely works until and unless larger trials and more research is done on the test to make a conclusive deduction. Larger trials will require thousands of patients to get the best result.

Researchers are hopeful about the results

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6Checks fragments of cancer DNA in the blood that normal tests cannot detect

The new test to detect five types of cancers looks at the Blood plasma DNA and checks for unique signatures that are usually emitted by tumors called methyl groups, These are like subtle hints given by tumors to announce their presence in the body but which aren’t easily detected in early stages even now where some cancers are concerned.


One of the authors of the study, Professor Kun Zhang, who is based at The University of California, San Diego said ‘The ultimate goal would be performing blood tests like this routinely during annual health check-ups, but the immediate focus is to test people at higher risk, based on family history, age or other known risk factors.’

Checks fragments of cancer DNA in the blood

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7The study involved asymptomatic participants

In the study, plasma samples from 605 people were studied by the researchers. The volunteers were all without any symptoms of any of the five different types of cancers. Believe it or not, 200 participants were later diagnosed with one of the cancers.

The researchers also looked at blood samples from additional 223 patients diagnosed with cancer. This was done to train the test to be able to scour blood to identify tumors. Researchers found that PanSeer had the ability to spot cancer in 95% of participants who had no symptoms when the samples were collected. They were diagnosed only later with their disease. The test also flagged down cancer in samples of 88% of people from 113 patients who had been diagnosed already with cancer. Some may wonder what was the need to test them again, but that is to check if the test indeed can spot cancer or not.

The study involved asymptomatic participants

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