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Precision Medicine for Preventing Suicide

저자:   업로드:2017-08-17  조회수:

    A team of researchers at Indianapolis-based Indiana University School of Medicine say they have created a novel method for diagnosing suicide risk by developing blood tests that work in everyone as well as more personalized blood tests for different subtypes of suicidality and high-risk groups.


    The researchers also demonstrated how two apps, one based on a suicide-risk checklist and the other on a scale for measuring feelings of anxiety and depression, work along with the blood tests to increase the precision of tests and to propose potential lifestyle, psychotherapeutic, and other interventions. The team also noted that they were able to identify a series of medications and natural substances that could be developed for preventing suicide.


    Their study ("Precision Medicine for Suicidality: From Universality to Subtypes and Personalization") is published in Molecular Psychiatry.




    “We sought to investigate whether blood gene expression biomarkers for suicide (that is, a ‘liquid biopsy’ approach) can be identified that are more universal in nature, working across psychiatric diagnoses and genders, using larger cohorts than in previous studies. Such markers may reflect and/or be a proxy for the core biology of suicide. We were successful in this endeavor, using a comprehensive stepwise approach, leading to a wealth of findings,” write the investigators.


    “Steps 1, 2 and 3 were discovery, prioritization and validation for tracking suicidality, resulting in a Top Dozen list of candidate biomarkers comprising the top biomarkers from each step, as well as a larger list of 148 candidate biomarkers that survived Bonferroni correction in the validation step. Step 4 was testing the Top Dozen list and Bonferroni biomarker list for predictive ability for suicidal ideation (SI) and for future hospitalizations for suicidality in independent cohorts, leading to the identification of completely novel predictive biomarkers (such as CLN5 and AK2), as well as reinforcement of ours and others previous findings in the field (such as SLC4A4 and SKA2).”


    "Our work provides a basis for precision medicine and scientific wellness preventive approaches," said Alexander B. Niculescu III, M.D., Ph.D., professor of psychiatry and medical neuroscience at IU School of Medicine and attending psychiatrist and research and development investigator at the Richard L. Roudebush Veterans Affairs Medical Center.


    The multistep research approach began with serial blood tests taken from 66 people who had been diagnosed with psychiatric disorders, followed over time, and who had at least

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