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A recent study conducted by researchers at Stony Brook University in New York has found a link between post-traumatic stress disorder that accelerated aging in first responders who worked at Ground Zero following the September 11, 2001, terrorist attacks. The study examined blood samples from 393 World Trade Center responders, nearly two decades after the attacks, revealing significant molecular changes.
Out of the responders tested, 232 were diagnosed with PTSD. The study identified 114 proteins and seven metabolites that differed significantly between those with PTSD and those without. These changes were linked to brain function, immune activity, energy metabolism, and cell communication and repair. The findings suggest that PTSD is associated with accelerated biological aging in multiple organs, including the heart, kidneys, liver, and lungs.
Lead study author Benjamin Luft, director of the Stony Brook WTC Wellness Program, emphasized that PTSD is a "whole-body illness" rather than just a mental health disorder. According to Luft, "These changes appear to accelerate aspects of biological aging and may increase the risk of many chronic diseases."
The study, published in Nature Communications, highlights the long-term health implications of PTSD, suggesting that it can lead to chronic conditions such as heart disease and cognitive decline. The research was funded in part by the Centers for Disease Control and Prevention, the National Institute for Occupational Safety, and the National Institutes of Health.
Despite its findings, the study has limitations. It only shows an association, not causation, and was conducted on a unique population of responders, which may not represent all PTSD sufferers. Additional research is needed to determine if these blood markers can predict disease progression or treatment response.
The study underscores the importance of recognizing PTSD as a chronic medical condition with significant long-term health implications. Investing in early diagnosis and comprehensive treatment for trauma survivors, including first responders and veterans, may improve quality of life and reduce the burden of chronic disease.
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