| Effects of one-day reperfusion after transient forebrain ischemia on circulatory system in the rat. | |
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MedLine Citation:
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PMID: 20577022 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Although ischemia/reperfusion injury remains incompletely understood, it appears that reactive oxygen species produced mainly during postischemic recirculation play a critical role. The present study examined the impact of forebrain ischemia and subsequent one-day reperfusion on several blood parameters. We determined glutamate concentration in whole blood, measured Cu/Zn- and Mn-SOD (superoxide dismutase) activity in blood cells as well as plasma, and investigated the prevalence of single and double strand breaks of lymphocyte DNA. The results of our experiment showed that the concentration of glutamic acid in whole blood was increased by about 25%. Antioxidant activity of total SOD and Cu/Zn-SOD was reduced in blood cells and plasma. Mn-SOD activity in blood cells was not affected by ischemic insult and one-day reperfusion, but we detected its significantly lower activity in samples of plasma. We observed a weakly reduced level of double and a significantly elevated level of single strand breaks of lymphocyte DNA. In conclusion, one day of recovery after the ischemic attack failed to return peripheral circulatory system to physiological conditions. Reduced antioxidant capacity in the blood and an elevated level of excitotoxic amino acid glutamate may cause lymphocyte DNA damage, and probably contribute to insufficient postischemic recovery of brain tissue. |
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Authors:
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Petra Kravcukova; Viera Danielisova; Miroslava Nemethova; Jozef Burda; Miroslav Gottlieb |
Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: General physiology and biophysics Volume: 29 ISSN: 0231-5882 ISO Abbreviation: Gen. Physiol. Biophys. Publication Date: 2010 Jun |
Date Detail:
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Created Date: 2010-06-25 Completed Date: 2010-09-28 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8400604 Medline TA: Gen Physiol Biophys Country: Slovakia |
Other Details:
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Languages: eng Pagination: 113-21 Citation Subset: IM |
Affiliation:
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Institute of Neurobiology SAS, Soltesovej 4/6, 040 01 Kosice, Slovakia. kravcukova@saske.sk |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Animals Brain Ischemia / blood, physiopathology* Cerebrovascular Circulation / physiology DNA Damage Glutamic Acid / blood Lymphocytes / metabolism Male Prosencephalon / blood supply*, injuries* Rats Rats, Wistar Reperfusion Injury / blood, physiopathology* Superoxide Dismutase / blood |
| Chemical | |
Reg. No./Substance:
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56-86-0/Glutamic Acid; EC 1.15.1.1/Superoxide Dismutase |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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