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http://dx.doi.org/10.5352/JLS.2007.17.5.664

Radioprotective Effects of Propolis on the Mouse Testis Exposed to X-ray.  

Ji, Tae-Jung (Dept. of Radiological Science, Kaya University)
Kim, Jong-Sik (Dept. of Biological Science, Andong National University)
Jeong, Hyung-Jin (School of Bioresource Science, Andong National University)
Seo, Eul-Won (Dept. of Biological Science, Andong National University)
Publication Information
Journal of Life Science / v.17, no.5, 2007 , pp. 664-670 More about this Journal
Abstract
The propolis is natural product produced by honeybees and is known to have many biologically useful properties such as anti-microbial, anti-oxidative and anti-tumorigenic activity. However, its radio-protective property has not been well studied. To investigate radio-protective effect of propolis on mouse testis, mice were supplemented with propolis after 5 Gy irradiation. The histological changes of testis were detected by TEM. The results indicate that propolis may protect tissue deformation which is induced by 5 Gy of ionizing radiation. Furthermore, to elucidate the potential molecular mechanisms involved in radio-protective property of propolis, we performed microarray experiments using oligo DNA microarray. We found 65 up-regulated genes and 224 down-regulated genes, whose expression levels were affected more than 2-fold by propolis treatment in mice irradiated at 5 Gy. We confirmed microarray data with reverse transcription-PCR using gene specific primers. The results of RT-PCR are highly correlated with those of microarray. These results may help understanding molecular mechanisms of radioprotective effects by propolis in mouse model.
Keywords
propolis; radio-protection; microarray; testis;
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