Neurochemical Research

, Volume 30, Issue 3, pp 291–295

Accumulation of Acrolein–Protein Adducts after Traumatic Spinal Cord Injury

Article

DOI: 10.1007/s11064-005-2602-7

Cite this article as:
Luo, J., Uchida, K. & Shi, R. Neurochem Res (2005) 30: 291. doi:10.1007/s11064-005-2602-7

Abstract

Reactive oxygen species and resultant lipid peroxidation (LPO) have been associated with central nervous system trauma. Acrolein (2-propenal) and 4-hydroxynonenal (HNE) are the most toxic byproducts of LPO, with detrimental effects in various types of cells. In this study, we used immunoblotting techniques to detect the accumulation of protein-bound acrolein and HNE. We report that protein-bound acrolein and HNE were significantly increased in guinea pig spinal cord following a controlled compression injury. The acrolein and HNE protein-adducts increased in the damaged spinal cord as early as 4 h after injury, reached a peak at 24 h after injury, and remained at a significantly high level up to 7 days after injury. Such increase of protein adducts was also observed in the adjacent segments of the injury site beginning at 24 h post injury. These results suggest that products of lipid peroxidation, especially acrolein, may play a critical role in the secondary neuronal degeneration, which follows mechanical insults.

Keywords

2-Propenal4-hydroxynonenallipid peroxidationspinal cord injuryimmunoblottingdensitometry

Copyright information

© Springer Science+Business Media, Inc. 2005

Authors and Affiliations

  1. 1.Department of Basic Medical Sciences, Institute for Applied Neurology, Center for Paralysis ResearchPurdue UniversityWest LafayetteUSA
  2. 2.Laboratory of Food and Biodynamics Graduate School of Bioagricultural SciencesNagoya UniversityNagoyaJapan