Knight Alzheimer Disease Research Center, Washington University School of Medicine, St. Louis, MO, USA.
Department of Neurology, Washington University School of Medicine, St. Louis, MO, USA.
J Alzheimers Dis. 2018;61(2):509-513. doi: 10.3233/JAD-170521.
Abnormal levels of Alzheimer's disease (AD) biomarkers, measured by positron emission tomography imaging using amyloid-based radiotracers and cerebrospinal fluid, are associated with impaired driving performance in older adults. We examined whether preclinical AD staging, defined using amyloid imaging and tau imaging using the radiotracer T807 (AKA flortaucipir or AV-1451), was associated with receiving a marginal/fail rating on a standardized road test (n = 42). Participants at Stage 2 (positive amyloid and tau scans) of preclinical AD were more likely to receive a marginal/fail rating compared to participants at Stage 0 or 1. Stage 2 preclinical AD may manifest in worse driving performance.
阿尔茨海默病(AD)生物标志物水平异常,可通过正电子发射断层扫描成像(使用基于淀粉样蛋白的放射性示踪剂和脑脊液测量)进行评估,与老年人驾驶表现受损有关。我们研究了使用淀粉样蛋白成像和tau 成像(使用放射性示踪剂 T807,又称 flortaucipir 或 AV-1451)定义的临床前 AD 分期是否与标准化道路测试中的边缘/失败评分相关(n=42)。与临床前 AD 0 期或 1 期相比,临床前 AD 2 期(阳性淀粉样蛋白和 tau 扫描)患者更有可能获得边缘/失败评分。临床前 AD 2 期可能表现为驾驶表现更差。