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- 저자 : 방지연 ( Ji Youn Bang ) (검색결과 1 건)
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실험연구 : 신생백서의 저산소 허혈 뇌손상에서 Heme Oxygenase 억제제의 효과
방지연 ( Ji Youn Bang ),박평환 ( Pyung Hwan Park ) 대한마취과학회 2006 Korean Journal of Anesthesiology Vol.50 No.6
Background: The heme oxygenase system catalyzes the conversion of heme to free iron, carbon monoxide and bilirubin. This study was purposed to evaluate the effect of the heme oxygenase inhibitor, Tin protoporphyrin IX (SnPPIX) on the hypoxic ischemic brain injury in a neonatal rat. Methods: Seven-day old Sprague-Dawley rat pups were used. The rats were divided into two groups; control group (n = 9) and SnPPIX group (n = 6). SnPPIX 50μmol/kg and the dissolvent were administered respectively intraperitoneally. For hypoxic ischemic brain injury, the right common carotid artery was ligated with 5-0 silk and the rats were put in the moisturized hypoxic gas chamber for 150 minutes. Lipid/N-acetyl aspartate and Lipid/Creatine ratio of 1H magnetic resonance spectroscopy were evaluated on the 1st day and the 7th day after hypoxic ischemic brain injury. All rats were sacrificed 2 weeks after hypoxic ischemic brain injury for morphological study. Results: There were no statistically significant differences between two groups in the result of MRS and Lip/Cr and Lip/NAA ratio on 1th day and 7th day after hypoxic ischemic brain injury. In addition, there was no significant difference in the gross morphological evaluation on the 14th day. Conclusions: Our results suggest that the pretreatment of the Tin protoporphyrin IX does not affect the degree of brain damage which is caused by apoptosis in the model of hypoxic ischemic brain injury in a neonatal rat. (Korean J Anesthesiol 2006; 50: 706~13)
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