Protective effect of erythropoietin in neonatal hypoxic ischemia in mice.

نویسندگان

  • Hiroko Matsushita
  • Michael V Johnston
  • Mary S Lange
  • Mary Ann Wilson
چکیده

The effect of systemic erythropoietin pretreatment on hypoxic ischemic injury was examined in neonatal mice. Injury was significantly less in cortex, hippocampus, striatum and thalamus of erythropoietin-treated animals (5 U/g vs vehicle) 24 h after hypoxic ischemia and in all of these regions except hippocampus at 7 days. Activated caspase-3- and activated NFkappaB-immunoreactive neurons were observed in the injured areas; these areas were smaller in the erythropoietin group. To our knowledge, this is the first report demonstrating persistent neuroprotective effects of erythropoietin in neonatal mice.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Neuroprotective effect of erythropoietin on hypoxic-ischemic brain injury in neonatal rats.

Erythropoietin (Epo) prevents ischemia and hypoxia-induced neuronal death in vitro. Recent studies have shown that this cytokine also has in vivo neuroprotective effects in cerebral and spinal ischemia in adult rodents. In this study, we aimed to investigate the effect of systemically administered recombinant human Epo on infarct volume and apoptotic neuronal death in a newborn rat hypoxic-isch...

متن کامل

P 9: Neuoprotective Effect of Cannabinoid CB1 Receptor Antagonists Rimonabant and AM251 on Hypoxic Mouse Model of Brain Oxidative Stress

Introduction: The hypoxic state, in which experimental animals were subjected to an atmosphere of 5% O2 and %95 N2, has been used to screen agents for possible cerebral protection by measuring their ability to prolong survival time in mice exposed to hypoxia. Researchers showed that rimonabant and AM251 allosteric potentiate all but the β1 subunit containing GABAA receptors at nM...

متن کامل

The Effect of Enalapril on Brain Edema and Cytokine Production Following Transient Focal Cerebral Ischemia in Mice

Introduction: Cytokines production as one of the inflammatory pathways in CNS is responsible for most brain damages following ischemia. On the other hand, during inflammation and brain ischemia, most of the renin- angiotensin components (RAS) increase locally. While it is established that blockade of RAS especially AT1 receptors has a protective effect on ischemia, the interaction of cytokines ...

متن کامل

P 22: Antihypoxic Effect of Saffron Extract in Mouse Model of Hypoxic Ischemia

Introduction: Stroke causes high rate of mortality in different societies. The medicinal uses of saffron (Crocus sativus) have a long history. Some metabolites derived from saffron stigmas exert numerous therapeutic effects due to hypolipidemic, antitussive, antioxidant, antidiabetic activities and many others. Materials and Methods:  Experiment performed with 120 ...

متن کامل

Erythropoietin reduces hippocampus injury in neonatal rats with hypoxic ischemic brain damage via targeting matrix metalloprotein-2.

OBJECTIVE Erythropoietin (EPO), as a type of the tissue-protective cytokines, is a 30.4 kDa hematopoietic glycoprotein. The purpose of this study was to explore the neuroprotective effects of EPO on the neonatal hypoxic-ischemic-induced hippocampus injury and the MMP-2 expression. MATERIALS AND METHODS Neonatal Sprague-Dawley (SD) rats were randomly divided into an untreated group (control) a...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:
  • Neuroreport

دوره 14 13  شماره 

صفحات  -

تاریخ انتشار 2003