Purpose: Neuron-specific enolase (NSE) of containing γ-enolase is considered valuable in the diagnosis of tumours of neuroectodermal origin.Method : We used rapid electrophoretic method on cellulose acetate plate to ...Purpose: Neuron-specific enolase (NSE) of containing γ-enolase is considered valuable in the diagnosis of tumours of neuroectodermal origin.Method : We used rapid electrophoretic method on cellulose acetate plate to determine the pattern of enolase isoenzymes in 21 aqueous humor and 23 serum specimens from retinoblastoma (Rb) and 21 aqueous and 25 serum specimens from 25 control cases to evaluate NSE in the diagnosis of Rb. The assay allowed assessment of all three major isoenzymes (aa,aγ and γγ),and NSE relative activity and its percentage in the total relative activity of the three enolase isoenzymes were assessed by means of fluorometer.Result: Aqueous from all patients with Rb contained aa,ar and rr isoenzymes and presented strong postitive, the positive rate of NSE being 100% and its relative activity accounting for 45 ± 9% of the total relative activity of the 3 enolase isoenzymes; No enolase was detectable in control aqueous with cataract, glaucoma and Coats's diseases (4 cases),but in two展开更多
目的:观察促红细胞生成素(EPO)对新生大鼠缺氧缺血性脑损伤后神经元特异性烯醇化酶表达的影响。方法:7日龄SD大鼠随机分成假手术对照组、EPO治疗组、缺氧缺血(HIBD)组。造模后在不同时间点检测脑质量损伤百分比、皮层脑组织HE染色、免...目的:观察促红细胞生成素(EPO)对新生大鼠缺氧缺血性脑损伤后神经元特异性烯醇化酶表达的影响。方法:7日龄SD大鼠随机分成假手术对照组、EPO治疗组、缺氧缺血(HIBD)组。造模后在不同时间点检测脑质量损伤百分比、皮层脑组织HE染色、免疫组化观察皮层神经元特异性烯醇化酶(NSE)的表达。结果:与假手术对照组相比较,HIBD组大鼠脑组织病理变化明显,EPO治疗组能明显改善大鼠脑组织形态变化和脑质量损伤百分比(P<0.05);HIBD组大鼠造模48 h后可见部分NSE阳性表达出现在神经元外,造模后第4天NSE的阳性表达达到高峰;在相同时间点EPO治疗组可明显减少NSE阳性表达颗粒在神经元间隙的出现;HIBD组大鼠在造模后48h和8 d NSE阳性细胞数目均少于同日龄对照组和EPO组(P<0.05)。结论:EPO在HIBD发生早期起到神经保护的作用,减少神经元的坏死,减轻缺氧缺血导致的脑功能损伤。展开更多
文摘Purpose: Neuron-specific enolase (NSE) of containing γ-enolase is considered valuable in the diagnosis of tumours of neuroectodermal origin.Method : We used rapid electrophoretic method on cellulose acetate plate to determine the pattern of enolase isoenzymes in 21 aqueous humor and 23 serum specimens from retinoblastoma (Rb) and 21 aqueous and 25 serum specimens from 25 control cases to evaluate NSE in the diagnosis of Rb. The assay allowed assessment of all three major isoenzymes (aa,aγ and γγ),and NSE relative activity and its percentage in the total relative activity of the three enolase isoenzymes were assessed by means of fluorometer.Result: Aqueous from all patients with Rb contained aa,ar and rr isoenzymes and presented strong postitive, the positive rate of NSE being 100% and its relative activity accounting for 45 ± 9% of the total relative activity of the 3 enolase isoenzymes; No enolase was detectable in control aqueous with cataract, glaucoma and Coats's diseases (4 cases),but in two
文摘目的:观察促红细胞生成素(EPO)对新生大鼠缺氧缺血性脑损伤后神经元特异性烯醇化酶表达的影响。方法:7日龄SD大鼠随机分成假手术对照组、EPO治疗组、缺氧缺血(HIBD)组。造模后在不同时间点检测脑质量损伤百分比、皮层脑组织HE染色、免疫组化观察皮层神经元特异性烯醇化酶(NSE)的表达。结果:与假手术对照组相比较,HIBD组大鼠脑组织病理变化明显,EPO治疗组能明显改善大鼠脑组织形态变化和脑质量损伤百分比(P<0.05);HIBD组大鼠造模48 h后可见部分NSE阳性表达出现在神经元外,造模后第4天NSE的阳性表达达到高峰;在相同时间点EPO治疗组可明显减少NSE阳性表达颗粒在神经元间隙的出现;HIBD组大鼠在造模后48h和8 d NSE阳性细胞数目均少于同日龄对照组和EPO组(P<0.05)。结论:EPO在HIBD发生早期起到神经保护的作用,减少神经元的坏死,减轻缺氧缺血导致的脑功能损伤。
