• Resuscitation · Jul 2018

    Low serum Kallistatin level was associated with poor neurological outcome of out-of-hospital cardiac arrest survivors: Proteomics study.

    • Yoon Sun Jung, Woon Yong Kwon, Gil Joon Suh, Sungyoon Moon, Mi-Hee Han, Je-In Youn, Sang-Uk Seo, Kyung Su Kim, and Seung-Yong Seong.
    • Department of Emergency Medicine, Seoul National University Hospital, Seoul 03080, Republic of Korea.
    • Resuscitation. 2018 Jul 1; 128: 6-10.

    Aim Of The StudyTo identify proteins of which depletion are associated with the poor 6-month neurological outcome of out-of-hospital cardiac arrest survivors.MethodsSeven healthy volunteers and 34 out-of-hospital cardiac arrest survivors admitted to the intensive care unit (ICU) and underwent targeted-temperature management were enrolled. According to the 6-month cerebral performance category (CPC) scale, patients were divided into the good (CPC 1-2) and poor (CPC 3-5) outcome groups. Blood samples were obtained at 0, 24, and 72 h after admission to the ICU.ResultsWith proteomic approaches, we found 23 proteins that showed group-differences between the sera pooled from 7 study groups: healthy volunteers, the good outcome groups (0, 24, and 72 h), and the poor outcome groups (0, 24, and 72 h). We selected 7 candidate proteins of which intensities were different between the good and poor outcome groups (>2-fold change) and excluded 5 proteins related to haemolysis or remaining high abundant proteins. To confirm the 2 identified proteins: retinal dehydrogenase 1 and Kallistatin, we performed enzyme-linked immunosorbent assay with individual serum. Finally, old age (odds ratio = 1.055; 95% confidence interval, 1.002-1.112; p = 0.043) and low serum kallistatin level at 0 h (odds ratio = 0.784; 95% confidence interval, 0.618-0.995; p = 0.046) were independently associated with the poor 6-month neurological outcome.ConclusionThe depletion of serum kallistatin at admission to the ICU was associated with the poor neurological outcome of out-of-hospital cardiac arrest survivors.Copyright © 2018 Elsevier B.V. All rights reserved.

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