碘对人胎大脑神经原特异性烯醇化酶表达的影响

利用生理剂量碘作用于早期人胎大脑神经细胞无血清培养物,经离子交换法分离出神经细胞的神经原特异性烯醇化酶(NSE)和非神经原特异性烯醇化酶(NNE)。两酶的转换方式与体内相似,碘促进神经细胞 NNE(αα,αγ亚基)向 NSE(γγ亚基)转换。培养25天 KI(?)组NSE 含量比培养30天对照组含量高,培养30天 KI_2组 NSE 含量是对照组的3倍,且 NSE 出现提前,活性增高。培养15天时加碘的作用比开始培养时加碘的作用更加明显。     

血清S100B蛋白和神经元特异性烯醇化酶在新生儿缺氧缺血性脑病早期诊断中的应用价值

目的 探讨血清S100B蛋白和神经元特异性烯醇化酶(NSE)在新生儿缺氧缺血性脑病(HIE)早期诊断及判断预后的应用价值。方法 选取2010年1月至2014年12月深圳市儿童医院新生儿科住院的HIE的患儿和健康新生儿作为研究对象。健康对照组40例,HIE组97例,其中轻度组41例,中度组30例,重度组26例。入组的新生儿均于出生后的第1、3、7天晨起空腹时采集静脉血测定血清S100蛋白和NSE含量。结果 HIE组患儿各个时间点S100B蛋白和NSE含量均明显高于健康对照组(P均<0.05)。治疗前中、重度组血清S100B蛋白和NSE含量明显高于轻度组(P<0.05)经治疗后血清S100B蛋白和NSE含量均明显下降(P均<0.05)。血清S100B蛋白含量与NSE含量呈正相关(P<0.05)。结论 血清S100B蛋白和NSE在HIE的早期诊断、损伤程度及预后的判断有重要意义。     

Serum NSE and S100B protein levels for evaluating the impaired consciousness in patients with acute carbon monoxide poisoning

The aim of this study was to investigate the associations between the levels of neuron-specific enolase (NSE) and S100B protein and coma duration, and evaluate the optimal cut-off values for prediction coma duration ≥ 72 hours in patients with acute carbon monoxide poisoning (ACOP).A total of 60 patients with ACOP were divided into 3 following groups according to their status of consciousness and coma duration at admission: Awake group [Glasgow Coma Scale score (GCS score) ≥ 13 points], Coma < 72 hours group (GCS score < 13 points and coma duration < 72 h), and Coma ≥ 72 hours group (GCS score < 13 points and coma duration ≥ 72 h). The levels of serum NSE and S100B protein were measured after admission.There were significant differences in GCS score, carbon monoxide (CO) exposure time, NSE, and S100B levels between the Coma ≥ 72 h group and the Awake group, and between the Coma < 72 h group and the Awake group. Significant differences in GCS score, NSE, and S100B levels were also found between Coma ≥ 72 h group and Coma < 72 h group. Correlation analysis showed that NSE and S100B were positively correlated (r_s = 0.590, P < .01); NSE and S100B were negatively correlated with GCS score (r_s = -0.583, r_s = -0.590, respectively, both P < .01). The areas under the curve (AUCs) of NSE, S100B, and GCS score to predict the coma duration ≥ 72 hours were 0.754, 0.791, and 0.785, respectively. Pairwise comparisons did not show differences among the 3 groups (all P > .05). The sensitivity and specificity of NSE prediction with a cut-off value of 13 μg/L were 80% and 64%, respectively, and those of S100B prediction with a cut-off value of 0.43 μg/L were 70% and 88%, respectively.The NSE and S100B protein levels were significantly correlated with the degree of impaired consciousness and had the same clinical value in predicting coma duration of ≥ 72 hours in patients with ACOP.     

七氟醚不同麻醉深度对术后应激反应以及血清兴奋性氨基酸、S-100β、NSE含量的影响

目的:研究七氟醚不同麻醉深度对术后应激反应以及血清兴奋性氨基酸、S-100β、神经元特异性烯醇化酶(NSE)含量的影响.方法:将2013年4月～2014年5月期间在我院接受静吸复合麻醉的120例患者纳入研究,根据七氟醚麻醉深度不同分为两组,观察组患者接受高浓度七氟醚麻醉[脑电双频指数(BIS)值35～45]、对照组患者接受低浓度七氟醚麻醉(BIS值50～60),比较两组患者的术后应激反应以及血清兴奋性氨基酸、S-100β、NSE含量.结果:(1)应激反应:观察组患者的血清皮质醇(Cor)、去甲肾上腺素(NE)、肾上腺素(E)含量低于对照组(P＜0.05);(2)兴奋性氨基酸:观察组患者的血清谷氨酸(Glu)、天冬氨酸(Asp)、甘氨酸(Gly)含量低于对照组(P＜0.05);(3)血清生化指标:观察组患者的血清S-100β、NSE含量低于对照组(P＜0.05).结论:高浓度七氟醚麻醉(BIS值35～45)有助于缓解术后应激反应、减少神经细胞损伤、降低血清兴奋性氨基酸含量、S-100β、NSE含量,是更为理想的七氟醚麻醉深度.     

Predicting long-term outcomes after cardiac arrest by using serum neutrophil gelatinase-associated lipocalin

Objectives

Neutrophil gelatinase-associated lipocalin (NGAL) is secreted by various tissues in pathologic states. Previous studies reported that post-cardiac arrest serum NGAL levels correlate with short-term neurologic outcomes and survival. The aim of this study was to examine the associations between NGAL levels post-cardiac arrest and long-term outcomes and survival.

血清S100B蛋白和神经元特异性烯醇化酶在缺氧缺血性脑病诊断与预后判断中的价值

目的探讨血清S100B蛋白和神经元特异性烯醇化酶(neuron-specific enolase,NSE)在新生儿缺氧缺血性脑病(hypoxic-ischemic encephalopathy,HIE)诊断与预后判断中的价值。方法 65例HIE患儿根据病情严重程度分为轻度HIE组(n=22),中度HIE组(n=24),重度HIE组(n=19),同期选择27例正常足月新生儿作为对照组。采用电化学发光免疫法、ELISA法动态检测各组血清NSE、S100B蛋白表达水平,同时比较各组NBNA评分和分析三者之间的相关性。结果 HIE患儿各组血清S100B蛋白、NSE水平均显著高于对照组(P0.05),而NBNA评分显著低于对照组(P0.05),且随病情程度加重而明显增加或降低(P0.05);HIE患儿血清S100B蛋白、NSE水平与NBNA评分呈负相关(P0.05),而血清S100B蛋白与NSE水平呈正相关(P0.05);随病情程度加重,HIE患儿血清S100B蛋白、NSE水平明显升高(P0.05),随时间延长,血清S100B蛋白、NSE水平则明显降低(P0.05)。结论动态监测血清S100B蛋白、NSE水平对新生儿HIE早期诊断、病情程度判断和治疗效果评价具有重要的临床价值。     

非小细胞肺癌患者外周血癌胚抗原、铁蛋白和神经元特异度烯醇化酶水平与肿瘤增殖、侵袭的关系

目的 分析非小细胞肺癌患者外周血癌胚抗原（carcinoembryonic antigen,CEA）、血清铁蛋白（serum ferritin,SF）和神经元特异度烯醇化酶 （neuronal specific enolase,NSE）水平与肿瘤增殖、侵袭的相关性。方法 回顾性分析医院2019年8月-2020年12月诊治的86例非小细胞肺癌患者作为研究对象,将其纳入病例组。于同期选择体检健康的受试者86例,将其纳入对照组。使用倾向性评分匹配(propensity score matching,PSM)法保证两组研究对象年龄和性别平衡后检测血清CEA、SF和NSE水平,根据患者病理结果将其分成增殖组和非增殖组,侵袭组和非侵袭组。比较病例组及对照组CEA、SF和NSE水平,分析增殖组和非增殖组,侵袭组和非侵袭组CEA、SF和NSE水平,探讨不同CEA、SF和NSE表达水平对肿瘤增殖、侵袭的影响。结果 病例组患者血清CEA、SF和NSE水平高于对照组（均P<0.05）。病例组中86例患者中34例患者发生增殖,26例患者发生肿瘤侵袭。增殖患者血清CEA、SF和NSE高于非增殖患者（P<0.05）。侵袭患者血清CEA、SF和NSE水平高于非侵袭患者（P<0.05）。血清CEA、SF和NSE高表达与肿瘤增殖及侵袭情况呈正相关（P<0.05）。CEA、SF和NSE水平越高,肿瘤增殖及侵袭风险越大。结论 非小细胞肺癌患者血清 CEA、SF和NSE水平高表达,且表达情况直接影响肿瘤增殖和侵袭。     

Cinética de la enolasa neuroespecífica: una herramienta adicional para el pronóstico neurológico después de una parada cardiaca

Introduction and objectivesTo analyze neuron-specific enolase (NSE) kinetics as a prognostic biomarker of neurological outcome in cardiac arrest survivors treated with targeted temperature management.MethodsWe performed a retrospective analysis of patients resuscitated from in- or out-of-hospital cardiac arrest admitted from September 2006 to May 2018 in a single tertiary care center and cooled to 32 °C to 34 °C for 24 hours. Blood samples for measurement of NSE values were drawn at hospital admission and at 24, 48, and 72 hours after return of spontaneous circulation (ROSC). Neurological outcome was evaluated by means of the Cerebral Performance Category (CPC) score at 3 months and was characterized as good (CPC 1-2) or poor (CPC 3-5).ResultsOf 451 patients, 320 fulfilled the inclusion criteria and were analyzed (80.3% male, mean age 61 ± 14.1 years). Among these, 174 patients (54.4%) survived with good neurological status. Poor outcome patients had higher median NSE values at hospital admission and at 24, 48 and 72 hours after ROSC. At 48 and 72 hours after ROSC, NSE predicted poor neurological outcome with areas under the receiver-operating characteristic curves of 0.85 (95%CI, 0.81-0.90) and 0.88 (95%CI, 0.83-0.93), respectively. In addition, delta NSE values between 72 hours after ROSC and hospital admission predicted poor neurological outcome with an area under the receiver-operating characteristic curve of 0.90 (95%CI, 0.85-0.95) and was an independent predictor of unfavorable outcome on multivariate analysis (P < .001).ConclusionsIn cardiac arrest survivors treated with targeted temperature management, delta NSE values between 72 hours after ROSC and hospital admission strongly predicted poor neurological outcome.     

硫酸镁对急性脑梗死患者NIHSS评分及NSE的影响

目的观察硫酸镁治疗急性脑梗死的疗效,分析镁离子对急性脑梗死患者美国国立卫生研究院卒中量表评分(NIHSS)及神经元特异性烯醇化酶(NSE)的影响。方法选择2016年3月-2019年9月在广东省潮州市人民医院住院治疗的急性脑梗死患者100例,根据掷币法随机分为观察组50例和对照组50例。对照组采用综合治疗,观察组在对照组治疗基础上联合硫酸镁治疗。比较2组患者治疗前后NIHSS评分、NSE水平及临床疗效和不良反应发生情况。结果2组治疗后NIHSS评分均低于治疗前(P<0.05),且观察组NIHSS评分低于对照组(P<0.05)。治疗第5天,2组NSE均升高(P<0.05),但观察组低于对照组(P<0.05);治疗第10天,2组NSE均低于治疗前和治疗第5天(P<0.05),且观察组低于对照组(P<0.05)。观察组总有效率为88.0%高于对照组的70.0%(P<0.05)。2组均未见严重不良反应发生。结论硫酸镁可为急性脑梗死的辅助治疗提供新的方法。     

神经元核心抗原和神经元特异性烯醇化酶在人胚胎脊髓发育阶段的表达

目的 探讨神经元核心抗原（NeuN）和神经元特异性烯醇化酶(NSE)在人胚胎脊髓发育阶段的分布规律及其表达意义。 方法 应用免疫组织化学法检测第2、3、4个月龄段,共16例人胚胎,脊髓前角、后角中NeuN和NSE的表达、分布状况。 结果 在脊髓后角处：第2个月胚龄段,NeuN呈阴性表达, 部分细胞呈NSE阳性表达;第3个月胎龄段,部分细胞开始呈NeuN阳性表达,NSE则呈广泛阳性表达;第4个月胎龄段,NeuN阳性细胞表达数量和强度均较前增高,NSE阳性表达与第3个月龄相似。在人胚胎脊髓前角处： 第2～4个月龄段,NeuN和NSE呈广泛阳性表达。 结论 人胚胎脊髓发育第2～4个月龄段,NeuN和NSE阳性表达在脊髓的前角处早于后角,NeuN和NSE参与脊髓神经元的发育成熟过程。