These tools will no longer be maintained as of December 31, 2024. Archived website can be found here. PubMed4Hh GitHub repository can be found here. Contact NLM Customer Service if you have questions.


Pubmed for Handhelds

PUBMED FOR HANDHELDS

Search MEDLINE/PubMed

  • Title: Ischemic postconditioning in the rat hippocampus: mapping of proteins involved in reversal of delayed neuronal death.
    Author: Nemethova M, Danielisova V, Gottlieb M, Kravcukova P, Burda J.
    Journal: Arch Ital Biol; 2010 Mar; 148(1):23-32. PubMed ID: 20426251.
    Abstract:
    In this study, transient forebrain ischemia was induced in male Wistar rats with subsequent 3 days of reperfusion (ischemia/reperfusion group) or 2 days of reperfusion followed by 5 min ischemia and another 1 day of reperfusion (postconditioning group) to assess an effect of delayed postconditioning applied two days after a previous lethal ischemic attack. We have examined immunoreactivity of antioxidant enzymes (MnSOD, CuZnSOD) and proteins related to apoptosis development (Bcl-2, Bax). Results of microdensitometric measurements from the vulnerable hippocampal CA1 region and relatively resistant dentate gyrus were compared to sham controls and identically, results of postconditioning group were compared to ischemic one. Our findings show protective effects of postconditioning in both brain regions examined, include increased expression of antioxidant enzymes, mainly CuZnSOD, what can be demonstrated by microdensitometric results: CuZnSOD density after ischemia and reperfusion was 6261.5 +/- 411.35; after postconditioning 9746.6 +/- 584.55. In addition, postconditioning prevents an excessive ischemia-induced increase of pro-apoptotic protein Bax (Bax density after ischemia and reperfusion was 3462.51 +/- 321.66; after postconditioning 1766.89 +/- 255.63).
    [Abstract] [Full Text] [Related] [New Search]