红藻氨酸致癫痫大鼠不同时点低氧反应基因表达量的差异及相关性分析  

The difference and correlation of the expression of hypoxia reaction genes at different time of kainic acid-induced epilepsy in rats

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作  者:牛廷献[1] 冯小明[1] 罗晓红[2] 郭晓宇[1] 陆璐[1] 王红义[1] 申健[1] 

机构地区:[1]兰州军区兰州总医院动物实验科,兰州730050 [2]兰州军区兰州总医院内分泌科

出  处:《中华行为医学与脑科学杂志》2015年第7期580-583,共4页Chinese Journal of Behavioral Medicine and Brain Science

基  金:甘肃省自然科学基金项目

摘  要:目的探讨红藻氨酸(kainic acid,KA)致癫痫大鼠海马组织中低氧反应基因血管内皮细胞生长因子(vascular endothelial gowth factor,VEGF)、促红细胞生成素(erythropoietin,EPO)、低氧诱导因子1α(hypoxia-inducible factor-1 alpha,HIF-1α)不同时间点表达量的差异,并分析三者问的相关性。方法腹腔注射KA建立大鼠癫痫模型。采用TaqMan探针实时定量PCR(real-time quantitative PCR)技术,检测注射KA后不同时点大鼠海马组织中低氧反应基因VEGF、EPO和HIF-1α表达量的变化。结果与对照组相比,注射KA后不同时间点各基因的表达量:VEGF表达量在12h[(8.38±1.27)×10^-3ng/μl,P〈0.05)]、24h[(8.30±5.08)×10^-3ng/μl,P〈0.05)]显著升高;EPO表达量在12h[(8.42±0.90)×10^-5ng/μl,P〈0.05)],48h[(1.50±3.25)×10^-2ng/μl,P〈0.01)]均明显升高;而HIF-1α在24h[(2.11±0.21)×10^-2ng/μl,P〈0.01)]、48h[(1.50±0.33)×10^-2ng/μl,P〈0.05)]、72h[(1.64±0.16)×10^-2ng/μl,P〈0.01)]均有显著的升高。EPO与HIF-lc~及VEGF显著相关(r=0.573,0.471,均P〈0.05),HIF-1α与VEGF相关性更高(r=0.803,P〈0.01)。结论VEGF、EPO和HIF-1α参与了癫痫的发生发展,并且三者在癫痫发作过程中存在一定的相关性。Objective To investigate the difference of tile expression of hypoxia reaction genes of vascular endothelial growth factor ( VEGF ) , erythropoietin ( EPO ) and hypoxia-inducible factor- 1 alpha ( HIF- 1α) ) at dif- ferent times of rats that were induced epilepsy by kainic acid (KA) , and analyze their correlation. Methods The epileptic rat model was established by intraperitoneal injection of kanic acid. The expression of VEGF, EPO and HIF-1α gene were detected by real-time fluorescent quantitative PCR assay with TaqMan probe in different times after intraperitoneal injection of KA. Results Compared with normal sodium (NS) group, the expression VEGF was higher at 12 h((8.38±1.27) ×10^-3 ng/ixl, P〈0.05)) and 24 h((8.30±5.08) ×10^-3 ng/μl, P〈0.05)),EPO was higher at 12 h ( (8.42±0.90) × 10^-5 ng/μl, P〈0.05 ) ) and 48 h ( (1.50±3.25) × 10^-2 ng/μl, P〈0.01 ) ) while the HIF-1 α was higher at 24 h( ( 2.11±0.21 ) × 10^-2 ng/μl, P〈0.01 ) ), 48 h ( ( 1.50±0.33 ) × 10^-2 ng/μl, P〈0.05 ) ) and 72 h((1.64±0.16) × 10^-2 ng/μl, P〈0.01 )). Furthermore, the expression of EPO showed significant correla- tions with HIF-1α and VEGF ( r=0.573,0.471, P〈0.05), VEGF and HIF-1α had eminent correlations ( r= 0. 803, P〈0.01 ). Conclusions The expression of VEGF,EPO and HIF-1α participate in the seizure procedure and there is certain correlation between the three genes.

关 键 词:癫痫 低氧反应基因 相关性 定量PCR 

分 类 号:R742.1[医药卫生—神经病学与精神病学]

 

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