Cao Hong, Li Jun, Li Guang-ming, Wang Yao-qi, Zeng Yin-ming
Department of Anesthesiology, 2nd Affiliated Hospital of Wenzhou Medical College, Zhejiang 325027, China.
Zhongguo Ying Yong Sheng Li Xue Za Zhi. 2007 May;23(2):184-8.
To explore the relationship between the effects of curcumin on cerebral ischemic/reperfusion injury and immediately genic expressions of Fos, Jun and NF-kappaB in hippocampal CA1 area.
Gerbils were randomly divided into sham group (SH), ischemia/reperfusion group (I/R), curcumin group (CU) and solvent control group (SC). Forebrain ischemia was induced by occlusion of bilateral common carotid arteries. Observations were carried out in each group 15 min, 1 h, 2 h, 6 h, 1 d, 3 d, 5 d and 7 d after ischemia: open field test was used to examine the behavioral change, the apoptosis neurons in hippocampal CA1 region was counted, the expression of Fos, Jun and NF-kappaB in hippocampal CA1 was detected by SABC immunocytochemical technique.
The behavioral mark and the number of apoptosis neurons in hippocampal (CA1 region was much less in CU group than in I/R group (P < 0.01) The expression of Fos was more and the expression of Jun and NF-kappaB was less in CA1 area in CU group than in I/R group (P < 0.01).
Curcumin can significantly protect neurons against cerebral ischemia, increasing the expression Fos and decreasing the expression of Jun and NF-kappaB may be the protective mechanisms.
探讨姜黄素对脑缺血/再灌注损伤的作用与海马CA1区Fos、Jun和核因子κB(NF-κB)即刻基因表达之间的关系。
将沙鼠随机分为假手术组(SH)、缺血/再灌注组(I/R)、姜黄素组(CU)和溶剂对照组(SC)。通过结扎双侧颈总动脉诱导前脑缺血。在缺血后15分钟、1小时、2小时、6小时、1天、3天、5天和7天对每组进行观察:采用旷场试验检测行为变化,计数海马CA1区凋亡神经元,用SABC免疫细胞化学技术检测海马CA1区Fos、Jun和NF-κB的表达。
CU组的行为评分和海马(CA1区)凋亡神经元数量均明显少于I/R组(P<0.01)。CU组CA1区Fos表达增多,Jun和NF-κB表达减少,与I/R组相比差异有统计学意义(P<0.01)。
姜黄素可显著保护神经元免受脑缺血损伤,增加Fos表达、降低Jun和NF-κB表达可能是其保护机制。