{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,18]],"date-time":"2026-07-18T09:09:21Z","timestamp":1784365761013,"version":"3.55.0"},"reference-count":57,"publisher":"SAGE Publications","issue":"11-12","license":[{"start":{"date-parts":[[2023,6,1]],"date-time":"2023-06-01T00:00:00Z","timestamp":1685577600000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Journal of Neurotrauma"],"published-print":{"date-parts":[[2023,6]]},"abstract":"<jats:p>\n                    Traumatic brain injury (TBI) is common among military veterans and has been associated with an increased risk of dementia. It is unclear if this is due to increased risk for Alzheimer's disease (AD) or other mechanisms. This case control study sought evidence for AD, as defined by the 2018 National Institute on Aging - Alzheimer's Association (NIA-AA) research framework, by measuring tau, \u03b2-amyloid, and glucose metabolism using positron emission tomography (PET) in veterans with service-related TBI. Seventy male Vietnam war veterans\u201440 with TBI (age 68.0\u2009\u00b1\u20092.5 years) and 30 controls (age 70.1\u2009\u00b1\u20095.3 years)\u2014with no prior diagnosis of dementia or mild cognitive impairment underwent \u03b2-amyloid (\n                    <jats:sup>18<\/jats:sup>\n                    F-Florbetaben), tau (\n                    <jats:sup>18<\/jats:sup>\n                    F-Flortaucipir), and fluorodeoxyglucose (\n                    <jats:sup>18<\/jats:sup>\n                    F-FDG) PET. The TBI cohort included 15 participants with mild, 16 with moderate, and nine with severe injury. \u03b2-Amyloid level was calculated using the Centiloid (CL) method and tau was measured by standardized uptake value ratios (SUVRs) using the cerebellar cortex as reference region. Analyses were adjusted for age and APOE-e4. The findings were validated in an independent cohort from the Department of Defense-Alzheimer's Disease Neuroimaging Initiative (DOD ADNI) study. There were no significant nor trending differences in \u03b2-amyloid or tau levels or\n                    <jats:sup>18<\/jats:sup>\n                    F-FDG uptake between the TBI and control groups before and after controlling for covariates. The \u03b2-amyloid and tau findings were replicated in the DOD ADNI validation cohort and persisted when the Australian Imaging Biomarkers and Lifestyle study of aging-Veterans study (AIBL-VETS) and DOD ADNI cohorts were combined (114 TBI vs. 87 controls in total). In conclusion, no increase in the later life accumulation of the neuropathological markers of AD in veterans with a remote history of TBI was identified.\n                  <\/jats:p>","DOI":"10.1089\/neu.2022.0172","type":"journal-article","created":{"date-parts":[[2023,3,1]],"date-time":"2023-03-01T01:44:43Z","timestamp":1677635083000},"page":"1086-1097","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":14,"title":["Tau, \u03b2-Amyloid, and Glucose Metabolism Following Service-Related Traumatic Brain Injury in Vietnam War Veterans: The Australian Imaging Biomarkers and Lifestyle Study of Aging-Veterans Study (AIBL-VETS)"],"prefix":"10.1177","volume":"40","author":[{"given":"Tia L.","family":"Cummins","sequence":"first","affiliation":[{"name":"Department of Molecular Imaging and Therapy, Center for PET, Austin Health, Melbourne, Victoria, Australia."},{"name":"The Florey Institute of Neuroscience and Mental Health, 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