目的探讨联合检测胶质纤维酸性蛋白(GFAP)、神经元烯醇化酶(NSE)、超敏C反应蛋白(hs-CRP)对新生儿脑损伤的临床应用效果。方法选取孕母无并发症或内科疾病的出生2~7 d足月新生儿276例为研究对象,入组后均取股静脉血3 m L进行血浆GFAP、...目的探讨联合检测胶质纤维酸性蛋白(GFAP)、神经元烯醇化酶(NSE)、超敏C反应蛋白(hs-CRP)对新生儿脑损伤的临床应用效果。方法选取孕母无并发症或内科疾病的出生2~7 d足月新生儿276例为研究对象,入组后均取股静脉血3 m L进行血浆GFAP、NSE、hs-CRP水平的检测,同期对新生儿NABA评分进行检测,并行MRI检查确定脑损伤情况,并根据检测结果分为脑损伤组(n=82)和非脑损伤组(n=194)。比较两组血浆GFAP、NSE、hs-CRP水平以及NABA评分比较,分析血浆GFAP、NSE、hs-CRP水平与新生儿NABA评分和脑损伤发生率的关系,并采用ROC曲线分析血浆GFAP、NSE、hs-CRP水平单独和联合评估新生儿脑损伤的价值。结果与非脑损伤组比较,脑损伤组血浆GFAP、NSE、hs-CRP水平均升高,NABA评分则降低(P<0.05)。与脑损伤组NABA评分≥35分患儿比较,脑损伤组NABA评分<35分患儿血浆NSE、hs-CRP、GFAP水平均升高(P<0.05)。新生儿血浆NSE、hs-CRP、GFAP水平与其NABA评分均呈负相关(r=-0.845、-0.887、-0.873,P<0.05),与其脑损伤发生率则呈正相关(r=0.811、0.875、0.826,P<0.05)。ROC曲线分析结果显示,新生儿血浆GFAP、NSE、hs-CRP水平评估其脑损伤的准确性均较高,其中以三者联合评估脑损伤的准确性最高。结论新生儿血浆GFAP、NSE、hs-CRP水平与其NABA评分和脑损伤均相关,且三者联合评估新生儿脑损伤的价值良好,可能作为新生儿脑损伤评估的参考指标。展开更多
As an inhibitor of the Notch signaling pathway, N-[N-(3,5-difluorohenacetyl)-l-alanyl]-S-phenylglycine tert-butyl ester(DAPT) may protect brain tissue from serious ischemic injury. This study aimed to explore neuropro...As an inhibitor of the Notch signaling pathway, N-[N-(3,5-difluorohenacetyl)-l-alanyl]-S-phenylglycine tert-butyl ester(DAPT) may protect brain tissue from serious ischemic injury. This study aimed to explore neuroprotection by DAPT after cerebral ischemia/reperfusion(I/R) injury. DAPT was intraperitoneally injected 3 hours before the establishment of a focal cerebral I/R model in the right middle cerebral artery of obstructed mice. Longa scores were used to assess neurological changes of mice. Nissl staining and TdT-mediated dUTP-biotin nick-end labeling staining were used to examine neuronal damage and cell apoptosis in the right prefrontal cortex, while immunofluorescence staining was used to detect glial fibrillary acidic protein-and Notch1-positive cells. Protein expression levels of Hes1 and Hes5 were detected by western blot assay in the right prefrontal cortex. Our results demonstrated that DAPT significantly improved neurobehavioral scores and relieved neuronal morphological damage. DAPT decreased the number of glial fibrillary acidic protein-and Notch1-positive cells in the right prefrontal cortex, while also reducing the number of apoptotic cells and decreasing interleukin-6 and tumor necrosis factor-α contents, and simultaneously downregulating Hes1 and Hes5 protein expression. These findings verify that DAPT alleviates pathological lesions and strengthens the anti-inflammatory response after cerebral I/R injury. Thus, DAPT might be developed as an effective drug for the prevention of cerebral I/R injury.展开更多
文摘目的探讨联合检测胶质纤维酸性蛋白(GFAP)、神经元烯醇化酶(NSE)、超敏C反应蛋白(hs-CRP)对新生儿脑损伤的临床应用效果。方法选取孕母无并发症或内科疾病的出生2~7 d足月新生儿276例为研究对象,入组后均取股静脉血3 m L进行血浆GFAP、NSE、hs-CRP水平的检测,同期对新生儿NABA评分进行检测,并行MRI检查确定脑损伤情况,并根据检测结果分为脑损伤组(n=82)和非脑损伤组(n=194)。比较两组血浆GFAP、NSE、hs-CRP水平以及NABA评分比较,分析血浆GFAP、NSE、hs-CRP水平与新生儿NABA评分和脑损伤发生率的关系,并采用ROC曲线分析血浆GFAP、NSE、hs-CRP水平单独和联合评估新生儿脑损伤的价值。结果与非脑损伤组比较,脑损伤组血浆GFAP、NSE、hs-CRP水平均升高,NABA评分则降低(P<0.05)。与脑损伤组NABA评分≥35分患儿比较,脑损伤组NABA评分<35分患儿血浆NSE、hs-CRP、GFAP水平均升高(P<0.05)。新生儿血浆NSE、hs-CRP、GFAP水平与其NABA评分均呈负相关(r=-0.845、-0.887、-0.873,P<0.05),与其脑损伤发生率则呈正相关(r=0.811、0.875、0.826,P<0.05)。ROC曲线分析结果显示,新生儿血浆GFAP、NSE、hs-CRP水平评估其脑损伤的准确性均较高,其中以三者联合评估脑损伤的准确性最高。结论新生儿血浆GFAP、NSE、hs-CRP水平与其NABA评分和脑损伤均相关,且三者联合评估新生儿脑损伤的价值良好,可能作为新生儿脑损伤评估的参考指标。
基金supported by the National Natural Science Foundation of China,No.81660243(to JDZ)a grant from the Social Development Science and Technology Plan Project of Science and Technology Department of Guizhou Province of China,No.SY [2015] 3041(to JDZ)a grant from the Science and Technology Department of Guizhou Province of China,No.LG [2012] 028(to JDZ)
文摘As an inhibitor of the Notch signaling pathway, N-[N-(3,5-difluorohenacetyl)-l-alanyl]-S-phenylglycine tert-butyl ester(DAPT) may protect brain tissue from serious ischemic injury. This study aimed to explore neuroprotection by DAPT after cerebral ischemia/reperfusion(I/R) injury. DAPT was intraperitoneally injected 3 hours before the establishment of a focal cerebral I/R model in the right middle cerebral artery of obstructed mice. Longa scores were used to assess neurological changes of mice. Nissl staining and TdT-mediated dUTP-biotin nick-end labeling staining were used to examine neuronal damage and cell apoptosis in the right prefrontal cortex, while immunofluorescence staining was used to detect glial fibrillary acidic protein-and Notch1-positive cells. Protein expression levels of Hes1 and Hes5 were detected by western blot assay in the right prefrontal cortex. Our results demonstrated that DAPT significantly improved neurobehavioral scores and relieved neuronal morphological damage. DAPT decreased the number of glial fibrillary acidic protein-and Notch1-positive cells in the right prefrontal cortex, while also reducing the number of apoptotic cells and decreasing interleukin-6 and tumor necrosis factor-α contents, and simultaneously downregulating Hes1 and Hes5 protein expression. These findings verify that DAPT alleviates pathological lesions and strengthens the anti-inflammatory response after cerebral I/R injury. Thus, DAPT might be developed as an effective drug for the prevention of cerebral I/R injury.
