Release date: 2018-06-06
According to the latest research, a new blood test method is expected to detect many types of cancer, even if the cancer is in an early stage.
In this study, the researchers found that the blood test method can detect 10 kinds of cancers, and some cancers have an accuracy rate of 80-90%.
However, experts point out that the blood test method still needs more research work before clinical application of human patients. Kazuaki Takabe, a professor of breast cancer at the Alfiro Foundation in the United States, said: "This is a very promising medical research. It is clear that the work is in its infancy. This is only the beginning. We need more sample determination tests. Precision."
In addition, the study involves patients who have been diagnosed with cancer who need to conduct more research to investigate whether the blood test can diagnose cancer at the earliest stage of the disease, especially before the patient is diagnosed with cancer.
The latest study, led by researchers at the Cleveland Clinic's Tausig Cancer Center, was presented at the annual meeting of the American Society of Clinical Oncology in Chicago on June 4.
Blood test for diagnosing cancer
This blood test is called "liquid biopsy" and is designed to look for small pieces of DNA that are released from cancer cells into the blood.
The latest study analyzed 878 patients who were recently diagnosed with cancer and 749 testers who did not have cancer. It is understood that the cancer patients involved in the study are at different stages of development, from the early stages of cancer, the first stage, and the late stage.
This blood test is very effective for ovarian cancer, and the current detection rate of ovarian cancer patients is 90%. At the same time, the test has an accuracy of 80% for pancreatic cancer, 80% for hepatobiliary cancer (liver cancer, cholangiocarcinoma and gallbladder cancer), and 77% for lymphoma detection. Multiple myeloma (a white blood cell) The detection accuracy of cancer is 73%, and the accuracy of colorectal cancer detection is 66%. However, this blood test has a low detection accuracy for lung cancer, esophageal cancer, and head and neck cancer, which is only 50-60%.
Kazuaki Takabe stressed that although the study included more than 1,600 patients, some of them had fewer patients with cancer, for example, only 10% of the patients were ovarian cancer patients, indicating that the study has some limitations.
Exciting point of view
According to Kazuaki Takabe, this blood test is important for studying cancer because it can diagnose very early cancers.
He also pointed out that the vast majority of cancer cases are reported by patients, which means that patients show their physical discomfort when they go to the hospital, but in fact the condition is found in the stage of cancer formation. This latest study is of great significance for liquid biopsy, which is very exciting for scientists. Those who have not found any symptoms or have no physical discomfort may have early signs of cancer in the blood test.
But some researchers have put forward a critical point of view on liquid biopsy, because it is unclear whether early detection of cancer can really extend human life. But in the long run, developing the latest technology to detect early cancer signs is expected to truly extend the life of patients.
Source: NetEase Technology Report
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