Plant‐derived antioxidants due to their phenolic compounds content are reported as potential candidates for reducing the levels of oxidative stress in living organisms. Grape seed extracts are very potent antioxidants and exhibit numerous interesting pharmacologic activities. Hydroethanolic (50/50, v/v) standardized extract was obtained from red grape seed (Vitis vinifera, variety Burgund Mare—BM). The total polyphenols content was evaluated by Folin‐Ciocalteu procedure and expressed as Gallic Acid/ml. The aim of this study was to evaluate the potential antioxidant effects of different concentrations of BM extract against γ‐rays induced DNA damage in human lymphocytes. Samples of human lymphocytes were incubated with BM extract (12.5, 25.0 and GA/ml, respectively) administered at 30 minutes before in vitro irradiation with γ‐rays (2 Gy). The DNA damage and repair in lymphocytes were evaluated using alkaline comet assay. Using the lesion score, the radiation‐induced DNA damage was found to be significantly different from control, both in the absence and presence of BM extract (except the lymphocytes treated with GA/ml BM extract). DNA repair analyzed by incubating the irradiated cells at 37° C and 5% atmosphere for 2 h, indicated a significant difference in the lymphocytes group treated with GA/ml BM extract, immediately and two hours after irradiation. These results suggest radioprotective effects after treatment with BM extract in human lymphocytes.
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22 May 2009
PROCEEDINGS OF THE PHYSICS CONFERENCE: TIM—08
28–29 November 2008
Timisoara (Romania)
Research Article|
May 22 2009
The Effect of a Grape Seed Extract on Radiation‐Induced DNA Damage in Human Lymphocytes
Tiberius Dicu;
Tiberius Dicu
aFaculty of Env. Science, Babeş‐Bolyai University, 30 Fântanele Str., 400294, Cluj‐Napoca, Romania
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Ion D. Postescu;
Ion D. Postescu
bOncological Institute “Prof. I. Chiricuţă,” Department of Radiobiology and Tumor Biology, 34‐36 Republicii Str., 400015, Cluj‐Napoca, Romania
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Vasile Foriş;
Vasile Foriş
bOncological Institute “Prof. I. Chiricuţă,” Department of Radiobiology and Tumor Biology, 34‐36 Republicii Str., 400015, Cluj‐Napoca, Romania
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Ioana Brie;
Ioana Brie
bOncological Institute “Prof. I. Chiricuţă,” Department of Radiobiology and Tumor Biology, 34‐36 Republicii Str., 400015, Cluj‐Napoca, Romania
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Eva Fischer‐Fodor;
Eva Fischer‐Fodor
bOncological Institute “Prof. I. Chiricuţă,” Department of Radiobiology and Tumor Biology, 34‐36 Republicii Str., 400015, Cluj‐Napoca, Romania
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Valentin Cernea;
Valentin Cernea
bOncological Institute “Prof. I. Chiricuţă,” Department of Radiobiology and Tumor Biology, 34‐36 Republicii Str., 400015, Cluj‐Napoca, Romania
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Mircea Moldovan;
Mircea Moldovan
aFaculty of Env. Science, Babeş‐Bolyai University, 30 Fântanele Str., 400294, Cluj‐Napoca, Romania
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Constantin Cosma
Constantin Cosma
aFaculty of Env. Science, Babeş‐Bolyai University, 30 Fântanele Str., 400294, Cluj‐Napoca, Romania
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Tiberius Dicu
a
Ion D. Postescu
b
Vasile Foriş
b
Ioana Brie
b
Eva Fischer‐Fodor
b
Valentin Cernea
b
Mircea Moldovan
a
Constantin Cosma
a
aFaculty of Env. Science, Babeş‐Bolyai University, 30 Fântanele Str., 400294, Cluj‐Napoca, Romania
bOncological Institute “Prof. I. Chiricuţă,” Department of Radiobiology and Tumor Biology, 34‐36 Republicii Str., 400015, Cluj‐Napoca, Romania
AIP Conf. Proc. 1131, 181–186 (2009)
Citation
Tiberius Dicu, Ion D. Postescu, Vasile Foriş, Ioana Brie, Eva Fischer‐Fodor, Valentin Cernea, Mircea Moldovan, Constantin Cosma; The Effect of a Grape Seed Extract on Radiation‐Induced DNA Damage in Human Lymphocytes. AIP Conf. Proc. 22 May 2009; 1131 (1): 181–186. https://doi.org/10.1063/1.3153444
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