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Neuroprotective Effects of Minocycline in Rat Brain Cortical Cell Culture Induced by Hypoxia  

Ha, Kyung A (Department of Pediatrics, School of Medicine, The Catholic University of Korea)
Yang, Bum Seok (Department of Pediatrics, School of Medicine, The Catholic University of Korea)
Kim, Jin Kyung (Department of Pediatrics, School of Medicine, The Catholic University of Korea)
Kim, Hong Tae (Department of Anatomy, School of Medicine, The Catholic University of Korea)
Ha, Sung Jin (Department of Biochemistry, School of Medicine, The Catholic University of Korea)
Lee, Jong Won (Department of Biochemistry, School of Medicine, The Catholic University of Korea)
Chung, Hai Lee (Department of Pediatrics, School of Medicine, The Catholic University of Korea)
Kim, Woo Taek (Department of Pediatrics, School of Medicine, The Catholic University of Korea)
Publication Information
Clinical and Experimental Pediatrics / v.46, no.11, 2003 , pp. 1101-1106 More about this Journal
Abstract
Purpose : In vivo, minocycline appears to be neuroprotective. Thus, the neuroprotective effects of minocycline were studied in a rat brain cortical cell culture induced by hypoxia. Methods : Cultured cells from the brains of Sprague-Dawley rats were divided into two sets of groups : normoxia groups treated with 5% $CO_2$ and hypoxia groups treated with 1% $CO_2$. After several days of incubation, the control groups were not treated with minocycline, while the sample groups were treated with either 1 or $10{\mu}g/mL$ of minocycline. The damaged cells were observed under a microscope, while apoptosis was detected using a TUNEL assay control-stained with DAPI. Results : Among the normoxia groups, the control and sample groups treated with 1 and $10{\mu}g/mL$ of minocycline were all statistically significantly different from each other. Meanwhile, among the hypoxia groups, although the control was significantly different from the sample groups, there was no statistically significant difference between the sample groups. When comparing the normoxia and hypoxia groups, there was a statistically significant difference between the control groups and sample groups treated with $1{\mu}g/mL$ of minocycline, yet no significant difference between the sample groups treated with $10{\mu}g/mL$ of minocycline. Conclusion : Minocycline was found to be neuroprotective in normoxia and hypoxia induced rat brain cortical cell cultures.
Keywords
Minocycline; Hypoxia; Brain; Culture;
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