Increased retention of tau PET ligand [18F]-AV1451 in Alzheimer's Disease Psychosis

被引:10
作者
Gomar, J. J. [1 ]
Tan, G. [1 ]
Halpern, J. [1 ]
Gordon, M. L. [1 ,2 ]
Greenwald, B. [2 ]
Koppel, J. [1 ,2 ]
机构
[1] Feinstein Inst Med Res, Manhassett, NY 11030 USA
[2] Zucker Hillside Hosp, Northwell Hlth, Dept Psychiat, Glen Oaks, NY USA
基金
美国国家卫生研究院;
关键词
PARTIAL VOLUME CORRECTION; NEUROFIBRILLARY TANGLES; COGNITIVE IMPAIRMENT; NEUROPSYCHIATRIC INVENTORY; DEMENTIA SEVERITY; RISK-FACTORS; SYMPTOMS; HALLUCINATIONS; DELUSIONS; ASSOCIATION;
D O I
10.1038/s41398-022-01850-z
中图分类号
R749 [精神病学];
学科分类号
100205 ;
摘要
Psychosis in Alzheimer's disease (AD) represents a distinct disease subtype with a more rapid progression of illness evidenced by an increased velocity of cognitive decline and a hastened mortality. Previous biomarker and post-mortem studies have implicated tau neuropathology as a possible mediator of the accelerated decline in AD psychosis. Tau positron emission tomography (PET) neuroimaging provides the opportunity to evaluate tau pathology in-vivo, so that clinical symptomatology can be correlated with disease pathology. [F-18]-AV1451 (Flortaucipir) is a PET ligand with high affinity for insoluble paired-helical filaments (PHFs) of hyperphosphorylated tau. In order to determine whether the development of psychosis and worsened prognosis in AD is associated with an increased burden of tau pathology that can be identified with tau imaging, we identified subjects within the Alzheimer's disease neuroimaging initiative (ADNI) who had [F-18]-AV1451 imaging at baseline and became psychotic over the course of the study (N = 17) and matched them 1:3 for gender, age, and education to subjects who had [F-18]-AV1451 imaging at baseline and did not become psychotic (N = 50). We compared baseline [F-18]-AV1451 retention, in addition to cognitive and functional baseline and longitudinal change, in those who became psychotic over the course of participation in ADNI with those who did not. Results suggest that increases in tau pathology in frontal, medial temporal, and occipital cortices, visualized with [F-18]-AV1451 binding, are associated with psychosis and a more rapid cognitive and functional decline.
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页数:8
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