National Institute of Nursing Research, National Institutes of Health, Bethesda, Maryland (Drs Pattinson, Guedes, Lai, and Gill, Ms Motamedi, and Messrs Devoto and Peyer); Center for Neuroscience and Regenerative Medicine, Rockville, Maryland (Dr Shahim and Mss Taylor and Dunbar); National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, Maryland (Dr Shahim); Henry M. Jackson Foundation, Bethesda, Maryland (Mss Taylor and Dunbar and Dr Roy); and Uniformed Services University of the Health Sciences, Department of Medicine, Bethesda, Maryland (Dr Roy).
J Head Trauma Rehabil. 2020 Jan/Feb;35(1):66-73. doi: 10.1097/HTR.0000000000000485.
To understand the relationships between traumatic brain injury (TBI), blood biomarkers, and symptoms of posttraumatic stress disorder (PTSD), depression, and postconcussive syndrome symptoms.
Cross-sectional cohort study using multivariate analyses.
One hundred nine military personnel and veterans, both with and without a history of TBI.
PTSD Checklist-Civilian Version (PCL-C); Neurobehavioral Symptom Inventory (NSI); Ohio State University TBI Identification Method; Patient Health Questionnaire-9 (PHQ-9); Simoa-measured concentrations of tau, amyloid-beta (Aβ) 40, Aβ42, and neurofilament light (NFL).
Controlling for age, sex, time since last injury (TSLI), and antianxiety/depression medication use, NFL was trending toward being significantly elevated in participants who had sustained 3 or more TBIs compared with those who had sustained 1 or 2 TBIs. Within the TBI group, partial correlations that controlled for age, sex, TSLI, and antianxiety/depression medication use showed that tau concentrations were significantly correlated with greater symptom severity, as measured with the NSI, PCL, and PHQ-9.
Elevations in tau are associated with symptom severity after TBI, while NFL levels are elevated in those with a history of repetitive TBIs and in military personnel and veterans. This study shows the utility of measuring biomarkers chronically postinjury. Furthermore, there is a critical need for studies of biomarkers longitudinally following TBI.
了解创伤性脑损伤(TBI)、血液生物标志物与创伤后应激障碍(PTSD)、抑郁和脑震荡后综合征症状之间的关系。
使用多变量分析的横断面队列研究。
109 名军人和退伍军人,包括有和无 TBI 病史者。
平民版 PTSD 检查表(PCL-C);神经行为症状量表(NSI);俄亥俄州立大学 TBI 识别方法;患者健康问卷-9(PHQ-9);Simoa 测量的 tau、淀粉样蛋白-β(Aβ)40、Aβ42 和神经丝轻链(NFL)浓度。
控制年龄、性别、末次损伤后时间(TSLI)和抗焦虑/抑郁药物使用情况,与 1 或 2 次 TBI 相比,3 次或以上 TBI 患者的 NFL 呈显著升高趋势。在 TBI 组中,控制年龄、性别、TSLI 和抗焦虑/抑郁药物使用情况的部分相关分析显示,tau 浓度与 NSI、PCL 和 PHQ-9 测量的症状严重程度显著相关。
tau 的升高与 TBI 后的症状严重程度相关,而 NFL 水平在有重复 TBI 病史者以及军人和退伍军人中升高。本研究表明了在损伤后慢性测量生物标志物的效用。此外,需要对 TBI 后进行生物标志物的纵向研究。