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C. PekcetinDokuz Eylul University Medical School Department of Histology & Embryology Balcova, Izmir 35340 Turkey

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Muge KirayDokuz Eylul University Medical School Department of Histology & Embryology Balcova, Izmir 35340 Turkey

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B. ErgurDokuz Eylul University Medical School Department of Histology & Embryology Balcova, Izmir 35340 Turkey

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K. TugyanDokuz Eylul University Medical School Department of Histology & Embryology Balcova, Izmir 35340 Turkey

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H. BagriyanikDokuz Eylul University Medical School Department of Histology & Embryology Balcova, Izmir 35340 Turkey

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G. ErbilDokuz Eylul University Medical School Department of Histology & Embryology Balcova, Izmir 35340 Turkey

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Basak BaykaraDokuz Eylul University Medical School Department of Histology & Embryology Balcova, Izmir 35340 Turkey

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U. CamsariDokuz Eylul University Medical School Department of Physiology Balcova, Izmir 35340 Turkey

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Cerebral ischemia leads to cognitive decline and neuronal damage in the hippocampus. Reactive oxygen species (ROS) play an important role in the neuronal loss after cerebral ischemia and reperfusion injury. Carnosine has both antioxidant and neuroprotective effects against ROS. In the present study, the effects of carnosine on oxidative stress, apoptotic neuronal cell death and spatial memory following transient cerebral ischemia in rats were investigated. Transient ischemia was induced by occlusion of right common carotid artery of rats for 30 min and reperfusion for 24 h or 1 week. Rats received intraperitoneal injection of 250 mg/kg carnosine or saline 30 min prior to experiment. Determination of antioxidant enzyme activities was performed spectrophotometrically. To detect apoptotic cells, TUNEL staining was performed using an In Situ Cell Death Detection Kit. Carnosine treatment elicited a significant decrease in lipid peroxidation and increase in antioxidant enzyme activities in ischemic rat brains. The number of TUNEL-positive cells was decreased significantly in carnosine-treated group when compared with the ischemia-induction group. Carnosine treatment did not provide significant protection from ischemia induced deficits in spatial learning. The results show that carnosine is effective as a prophylactic treatment for brain tissue when it is administered before ischemia without affecting spatial memory.

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Editorial Board

    1. Csányi, Vilmos (Göd)
    1. Dudits, Dénes (Szeged)
    1. Falus, András (Budapest)
    1. Fischer, Ernő (Pécs)
    1. Gábriel, Róbert (Pécs)
    1. Gulya, Károly (Szeged)
    1. Gulyás, Balázs (Stockholm)
    1. Hajós, Ferenc (Budapest)
    1. Hámori, József (Budapest)
    1. Heszky, László (Gödöllő)
    1. Hideg, Éva (Szeged)
    1. E. Ito (Sanuki)
    1. Janda, Tibor (Martonvásár)
    1. Kavanaugh, Michael P. (Missoula)
    1. Kása, Péter (Szeged)
    1. Klein, Éva (Stockholm)
    1. Kovács, János (Budapest)
    1. Brigitte Mauch-Mani (Neuchâtel)
    1. Nässel, Dick R. (Stockholm)
    1. Nemcsók, János (Szeged)
    1. Péczely, Péter (Gödöllő)
    1. Roberts, D. F. (Newcastle-upon-Tyne)
    1. Sakharov, Dimitri A. (Moscow)
    1. Singh, Meharvan (Fort Worth)
    1. Sipiczky, Mátyás (Debrecen)
    1. Szeberényi, József (Pécs)
    1. Székely, György (Debrecen)
    1. Tari, Irma (Szeged)
    1. Vágvölgyi, Csaba (Szeged),
    1. L. Zaborszky (Newark)

 

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Acta Biologica Hungarica
Language English
Size  
Year of
Foundation
1950
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changed title
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per Year
 
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per Year
 
Founder Magyar Tudományos Akadémia
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H-1051 Budapest, Hungary, Széchenyi István tér 9.
Publisher Akadémiai Kiadó
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H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
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Chief Executive Officer, Akadémiai Kiadó
ISSN 0236-5383 (Print)
ISSN 1588-256X (Online)