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Abstract #1726

Elevated Magnetic Susceptibility Suggests Distinct Neurodegenerative Pathology in World Trade Center First Responders

Thomas Hagan1, Jia Ying1, Chuan Huang1,2, Minos Kritikos3, Sean Clouston3, and Benjamin Luft4
1Department of Biomedical Engineering, Stony Brook University, Stony Brook, NY, United States, 2Department of Radiology, Stony Brook Medicine, Stony Brook, NY, United States, 3Program in Public Health and Department of Family, Population, and Preventative Medicine, Stony Brook Medicine, Stony Brook, NY, United States, 4Department of Medicine, Stony Brook Medicine, Stony Brook, NY, United States

Synopsis

Keywords: Neurodegeneration, DegenerativeMounting evidence has shown that first responders to the 9/11 terrorist attack on the World Trade Center(WTC) are developing early-onset dementia but the underlying pathology driving this remains to be understood. Our team assessed the relationship between cognitive impairment and susceptibility differences in the brains of responders for the first time using quantitative susceptibility mapping(QSM). While research on Alzheimer’s disease has reported changes in QSM across several regions, we found elevated susceptibility located in the amygdala of responders with CI. Our findings bolster evidence suggesting that WTC responders are experiencing unique pathology which could point to a novel neurodegenerative disease.

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