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According to a recent report on the website of the British "New Scientist" magazine, American researchers have invented a new blood test method that can help by measuring the corresponding antibody levels in the blood of people infected with the new coronavirus (targeting molecules released by dead blood cells and their DNA).
Predict which infected people may be severely ill and need to use a ventilator
.
The research leader, Anna Rodriguez of New York University Langone, said that the test will also be helpful for those who have not been hospitalized for new crown patients, and can help predict whether they need to be more closely monitored.
, Isolation at home or sent to hospital for treatment
.
The researchers explained that people who are severely ill due to infection with the new coronavirus often start to worsen at least a week or more after the onset of symptoms, and the virus level is declining at this time, which indicates that the patient's response to the infection is causing the severe illness.
, Not the virus itself
.
In this study, Rodriguez's team observed the blood test results of 115 hospitalized patients with new coronary pneumonia.
About half of them were seriously ill and needed oxygen support, while the rest recovered quickly
.
Studies have found that those who have a high concentration of antibodies against DNA or a fatty molecule (phosphatidylserine) from the cell membrane have a 90% chance of getting worse
The researchers pointed out that it is not yet clear whether the antibodies detected by this method are related to the patient's worsening condition
.
DNA and phosphatidylserine appear to come from red blood cells that have ruptured, as well as immune cells called neutrophils, which release DNA to trap bacteria when they die
Rodriguez pointed out that at present, doctors are formulating diagnosis and treatment plans for patients with new crowns based on their clinical symptoms (such as blood oxygen level, age and other risk factors).
The new detection method can provide doctors with more reference information
.
(Reporter Liu Xia)