Dynamic protein changes in the perihaemorrhagic zone of Surgically Treated Intracerebral Haemorrhage Patients

Research output: Contribution to journalArticle

Abstract

The secondary injury cascades exacerbating the initial brain injury following intracerebral haemorrhage (ICH) are incompletely understood. We used dual microdialysis (MD) catheters placed in the perihaemorrhagic zone (PHZ) and in seemingly normal cortex (SNX) at time of surgical ICH evacuation in ten patients (range 26-70 years). Routine interstitial MD markers (including glucose and the lactate/pyruvate ratio) were analysed and remaining microdialysate was analysed by two-dimensional gel electrophoresis (2-DE) and nano-liquid chromatography tandem mass spectrometry (nLC-MS/MS). Two time intervals were analysed; median 2-10 hours post-surgery (time A) and median 68-76 hours post-ICH onset (time B). Using 2-DE, we quantified 232 ± 31 different protein spots. Two proteins differed between the MD catheters at time A, and 12 proteins at time B (p < 0.05). Thirteen proteins were significantly altered between time A and time B in the SNX and seven proteins in the PHZ, respectively. Using nLC-MS/MS ca 800 proteins were identified out of which 76 were present in all samples. At time A one protein was upregulated and two downregulated, and at time B, seven proteins were upregulated, and four downregulated in the PHZ compared to the SNX. Microdialysis-based proteomics is feasible for study of secondary injury mechanisms and discovery of biomarkers after ICH.

Details

Authors
  • Lovisa Tobieson
  • Bijar Ghafouri
  • Peter Zsigmond
  • Sandro Rossitti
  • Jan Hillman
  • Niklas Marklund
Organisations
External organisations
  • Linköping University
  • Skåne University Hospital
  • Region Östergötland
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Neurology
  • Surgery
Original languageEnglish
Article number3181
JournalScientific Reports
Volume9
Issue number1
Publication statusPublished - 2019 Feb 28
Publication categoryResearch
Peer-reviewedYes