Extracellular vesicle-associated cytokines in sport-related concussion.
Extracellular vesicle-associated cytokines in sport-related concussion.
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DOI：
10.1016/j.bbi.2021.11.015
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发表时间：
2022-03
期刊：
影响因子：
--
通讯作者：
Gill JM
中科院分区：
文献类型：
--
作者：
Meier TB;Guedes VA;Smith EG;Sass D;Mithani S;Vorn R;Savitz J;Teague TK;McCrea MA;Gill JM
Growing evidence suggests that sport-related concussion results in a robust inflammatory response that can be measured in serum or plasma and is predictive of symptom recovery. Recently, extracellular vesicles (EV) derived from serum or plasma have emerged as a promising source of biomarkers for neurological disorders like concussion because they may better reflect central immunological activity. However, the association of acute concussion with EV-associated cytokines has not yet been systematically studied in humans. We tested the hypothesis that EV-associated cytokines are elevated acutely and predictive of symptom duration following concussion in a cohort of high-school and collegiate football players. Players were enrolled and provided serum samples at a preseason baseline visit (N=857). An additional blood draw was obtained in players that subsequently suffered a concussion (N=23) within 6-hours post-injury and in matched, uninjured players (N=44). Concentrations of Interleukin-6 (IL-6), IL-1β, IL-1 receptor antagonist (IL-1RA), IL-10, and tumor necrosis factor were measured in EV and EV-depleted serum samples. EV-associated IL-6 was significantly elevated post-injury relative to baseline levels and controls (ps<0.01). In EV-depleted samples, IL-1RA was significantly elevated post-injury relative to baseline levels and controls (ps<0.01). Time-to-event analyses showed that post-injury EV-associated IL-6 levels were positively associated with the number of days that injured athletes reported symptoms (p<0.05). These results highlight the potential of EV-associated cytokines as biomarkers of concussion.
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