Special Feature

User Panel

My Panel

My Panel

Bookmark Science Articles

Recent News
Bookmark / Share This Science Site

Activation of poly(ADP-ribose) polymerase by myocardial ischemia and coronary reperfusion in human circulating leukocytes.

Activation of poly(ADP-ribose) polymerase by myocardial ischemia and coronary reperfusion in human circulating leukocytes. Research Abstract Details 

Research Abstract Table of Contents

Jump to the:

  • Abstract Text of This Paper
  • Journal Published
  • MeSH Keywords of This Abstract
  • Chemicals and Substances Used in this Paper
  • Grants and Granting Agency of this Research
  • Database Accession Numbers Used in this Paper
  • Related Papers
  • Related Research Tags
  • Rate this Research Paper
  • Activation of poly(ADP-ribose) polymerase by myocardial ischemia and coronary reperfusion in human circulating leukocytes. Abstract Text:

    emese Emese ,eszter Eszter ,katarina vargovaKatarina Vargova,eszter pankotaiEszter Pankotai,kanneganti murthyKanneganti Murthy,zsuzsanna Zsuzsanna , , ,katalin feketeKatalin Fekete, kiss Kiss, ,zsombor laczaZsombor Lacza,domokos Domokos ,csaba Csaba ,

    Reactive free radical and oxidant production leads to DNA damage during myocardial ischemia/reperfusion. Consequent overactivation of poly(ADP-ribose) polymerase (PARP) promotes cellular energy deficit and necrosis. We hypothesized that PARP is activated in circulating leukocytes in patients with myocardial infarction and reperfusion during primary percutaneous coronary intervention (PCI). In 15 patients with ST segment elevation acute myocardial infarction, before and after primary PCI and 24 and 96 h later, we determined serum hydrogen peroxide concentrations, plasma levels of the oxidative DNA adduct 8-hydroxy-2'-deoxyguanosine (8OHdG), tyrosine nitration, PARP activation, and translocation of apoptosis-inducing factor (AIF) in circulating leukocytes. Plasma 8OHdG levels and leukocyte tyrosine nitration were rapidly increased by PCI. Similarly, poly(ADP-ribose) content of the leukocytes increased in cells isolated just after PCI, indicating immediate PARP activation triggered by reperfusion of the myocardium. In contrast, serum hydrogen peroxide concentrations and the translocation of AIF gradually increased over time and were most pronounced at 96 h. Reperfusion-related oxidative/nitrosative stress triggers DNA damage, which leads to PARP activation in circulating leukocytes. Translocation of AIF and lipid peroxidation occurs at a later stage. These results represent the first direct demonstration of PARP activation in human myocardial infarction. Future work is required to test whether pharmacological inhibition of PARP may offer myocardial protection during primary PCI.

    Activation of poly(ADP-ribose) polymerase by myocardial ischemia and coronary reperfusion in human circulating leukocytes. Publishing Authors By Initials

    e E ,e E ,k vargovaK Vargova,e pankotaiE Pankotai,k murthyK Murthy,z Z ,t T ,t T ,k feketeK Fekete,rg kissRG Kiss,i I ,z laczaZ Lacza,d D ,c C ,

    For similar amino acids, peptides, and proteins: amino acids: amino acids, cyclic: amino acids, aromatic: tyrosine research abstracts see: amino acids, peptides, and proteins: amino acids: amino acids, cyclic: amino acids, aromatic: tyrosine research

    PUBMED ID PMID:

    MEDLINE DATE: 2006 Sep-Oct

    Activation of poly(ADP-ribose) polymerase by myocardial ischemia and coronary reperfusion in human circulating leukocytes. Journal Published:

    PUBLICATION TYPE: Research Support, Non-U.S. Gov

    Journal: Molecular medicine (Cambridge, Mass.)

    VOLUME: 12

    Page Numbers: 221-8

    Journal Abbreviation: Mol. Med.

    ISSN: 1076-1551

    DAY: 3

    MONTH: 12

    YEAR: 2007

    Activation of poly(ADP-ribose) polymerase by myocardial ischemia and coronary reperfusion in human circulating leukocytes. Information

    Number of References:

    LANGUAGE: eng

    NlmUniqueID: 9501023

    Activation of poly(ADP-ribose) polymerase by myocardial ischemia and coronary reperfusion in human circulating leukocytes. Keywords Mesh Terms:

    KEYWORDS: Tyrosine

    MESH TERMS: biosynthesis

    Chemical & Substance for Abstract: Activation of poly(ADP-ribose) polymerase by myocardial ischemia and coronary reperfusion in human circulating leukocytes. Information

    Substance Name: Poly(ADP-ribose) Polymerases

    Registry Number: EC 2.4.2.30

    Grant and Affiliation Information for Activation of poly(ADP-ribose) polymerase by myocardial ischemia and coronary reperfusion in human circulating leukocytes.

    AFFILIATION: Cardiovascular Research Group of the Hungarian Academy of Sciences and Semmelweis University & National Health Center, Budapest, Hungary.

    Country: United States

    United States Research PublicationUnited States Research Publication

    AGENCY: United States NIGMS

    GRANT: R01 GM60915

    ACRONYM: GM

    MEDLINETA: Mol Med

    REFSOURCE:

    DATABASENAME:

    ACCESSION NUMBER:

    Number Hits: 0

    Activation of polyADP-ribose polymerase by myocardial ischemia and coronary reperfusion in human circulating leukocytes Related Publications

     

    Molecular Station USER Menu

    Welcome to Molecular Station!

    You have to register before you can post on our forums or use our advanced features. Register Now! Its Free and Fast!

    Already registered? Login now below.

    User Name:

    Password:

    Already registered and Forgot your password? Click below to recover it.

    Recover Lost Password

    Join now - it's fast and free!

    Molecular Station is THE largest network of researchers, scientists and science lovers anywhere!

    Research Terms of Usage and Disclaimer
    Home
    Features

    Protocols

    DNA Forum

    Science Forum

    DNA Forum
    Biology Forum

    Science News


    [CaRP] XML error: Invalid document end at line 2

    For more click here:Science News