期刊
DEMENTIA AND GERIATRIC COGNITIVE DISORDERS
卷 46, 期 5-6, 页码 346-357出版社
KARGER
DOI: 10.1159/000494754
关键词
Delirium; Blood and cerebrospinal fluid biomarker; Dementia; Neuroaxonal injury
资金
- Research Council of Norway
- Norwegian National Health Organization
- South-Eastern Norway Regional Health Authorities
- Medical Student Research Program in Norway
- Swedish Research Council
- Swedish State Support for Clinical Research
- European Research Council
- Swedish Brain Foundation
- Swedish Alzheimer Foundation
Background: Delirium is associated with new-onset dementia, suggesting that delirium pathophysiology involves neuronal injury. Neurofilament light (NFL) is a sensitive biomarker for neuroaxonal injury. Methods: NFL was measured in cerebrospinal fluid (CSF) (n = 130), preoperative serum (n = 192), and postoperative serum (n = 280) in hip fracture patients, and in CSF (n = 123) and preoperative serum (n = 134) in cognitively normal older adults undergoing elective surgery. Delirium was diagnosed with the Confusion Assessment Method. Results: Median serum NFL (pg/mL) was elevated in delirium in hip fracture patients (94 vs. 54 pre- and 135 vs. 92 postoperatively, both p < 0.001). Median CSF NFL tended to be higher in hip fracture patients with delirium (1,804 vs. 1,636, p = 0.074). Serum and CSF NFL were positively correlated (rho = 0.56, p < 0.001). Conclusion: Our findings support an association between neuroaxonal injury and delirium. The correlation between serum and CSF NFL supports the use of NFL as a blood biomarker in future delirium studies. (C) 2018 S. Karger AG, Basel
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