US research finds that blood protein can test suicidal tendency

Some proteins in the blood may help to judge people's suicidal tendencies, which makes it possible to judge and prevent suicide risk through blood tests in the future, US researchers said   Researchers from Indiana University reported in the Journal of molecular psychiatry that the level of SAT1 and other proteins in the blood of patients with bipolar disorder and suicides increased significantly For the first time, in principle, SAT1 and other proteins can be used as biomarkers to detect high suicide risk   Researchers followed dozens of patients with bipolar disorder In three years, they visit these patients every three to six months and check their blood During the course of the study, nine patients who had never thought of suicide had a strong suicidal tendency The protein levels of SAT1 and other proteins were higher in these 9 patients by genetic method, which was probably a biological signal related to suicidal tendency   To test the findings, the researchers, in collaboration with the local coroner's office, conducted blood tests on suicide victims, and found that the levels of these proteins in the blood of suicide victims also increased significantly The researchers also conducted tests on two other groups of people and found that high protein levels, such as SAT1, were associated with their future suicide related hospitalization   The researchers said the results showed that these biomarkers of SAT1 not only reflected the current suicide risk, but also had a direct relationship with the long-term suicide risk However, they also pointed out that the subjects of this study are all men, and there may be differences between men and women, so more studies are needed to confirm their findings   The medical community has a strong interest in this achievement, but many colleagues also believe that this research sample is small and all male, which may not be representative More importantly, the vast majority of suicides will not go to see a doctor in advance, and it is impossible to predict perfectly only by one test.