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Abstract #0033

Elevated free-water volume in the brains of HIV+ alcohol drinkers compared to HIV- drinkers as an indication of neuro-inflammation

Teddy Salan1, Varan Govind1, Joseph Gullett2, Eric Porges2, Zhigang Li2, Ronald Cohen2, and Robert Cook2
1University of Miami, Miami, FL, United States, 2University of Florida, Gainesville, FL, United States

Synopsis

Keywords: Neuroinflammation, Infectious disease, Alcohol UseChronic alcohol use and HIV infection can have synergistic effects that negatively impact the brain leading to abnormalities such as neuro-inflammation. Free-water eliminated DTI (FWE-DTI) has been suggested as a biomarker of neuro-inflammation. This study compare DTI and FWE-DTI derived metrics in the brains of HIV+/HIV- chronic drinkers to determine whether HIV infection or drinking behavior is a more significant factor contributing to brain microstructural abnormalities and neuro-inflammation. Our results suggest that HIV is a more significant factor than drinking level contributing to elevated free water in the brain as a sign of neuro-inflammation.

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