目的:β淀粉样蛋白（β-amyloid precursor protein，β-APP）是已知的参与阿尔茨海默病机制的关键因子。β-APP是否参与难治性癫痫中的病理机制并不清楚。这项研究在于了解β-APP的蛋白在难治性癫痫患者术后颞叶皮质和海马组织中的表达是否异常。方法:免疫荧光法半定量测定难治性癫痫患者术后颞叶皮质和海马组织中的β-APP阳性蛋白的荧光值，并应用统计软件对实验数据进行单因素方差分析。结果:免疫荧光强度值分析结果显示β-APP在耐药性癫痫脑组织中表达较对照组明显增高且有统计学意义。结论:β-APP在难治性癫痫脑组织中异常增高，增高的β-APP可能参与了难治性癫痫的病理机制。
【摘要】 目的 探讨单次癫痫发作是否会引起脑损伤。 方法 2007年6月-2009年11月，采用电化学发光法检测癫痫发作后24 h内40例和对照组40例患者血清和脑脊液中神经元特异性烯醇化酶（neuron-specific enolase，NSE）水平，采用ELISA法测定其血清和脑脊液中髓鞘碱性蛋白（myebin bosic protein，MBP）水平。 结果 癫痫组血清和脑脊液中NSE水平明显高于对照组（Plt;0.01）；癫痫组血清MBP水平与对照组比较差异无统计学意义（Pgt;0.05）；癫痫组脑脊液中MBP水平高于对照组（Plt;0.05）。 结论 单次癫痫患者血清和脑脊液中NSE明显升高，脑脊液中MBP升高，提示单次癫痫发作可导致神经元损伤。【Abstract】 Objective To detect the possibility of brain damage in the epileptic patients after single episodes. Methods The levels of neuron-specific enolase (NSE) in serum and cerebrospinal fluid (CSF) in 40 patients with single episodes within 24 hours after seizures from June 2007 to November 2009 were determined respectively by electrochemiluminescence. Another 40 healthy individuals were enrolled as the control. The levels of myelin basic protein (MBP) were determined by enzyme-linked immunosorbent assay. Results The levels of NSE in the serum and CSF in epileptic group within 24 hours after seizures were significantly higher than those in the control group (Plt;0.01), and the levels of MBP in the serum in the two group didn′t differ much (Pgt;0.05). The levels of MBP in CSF in epileptic group were significantly higher than those in the control group (Plt;0.05). Conclusion After single episodes, the levels of NSE in serum and CSF and the levels of NSE in CSF increase,which suggests that single episodes may lead to neuronal damage.
Objective To analyze the risk factors and prognosis of acute gastrointestinal injury (AGI) early after acute type A aortic dissection (ATAAD) repair, and develop the Nomogram prediction model of AGI. Methods The patients who underwent ATAAD cardiopulmonary bypass surgery in our hospital from 2016 to 2021 were collected and divided into an AGI group and a non-AGI group. The clinical data of the two groups were compared. A Nomogram prediction model was established by using R language. Results A total of 188 patients were enrolled, including 166 males and 22 females, aged 22-70 (49.70±9.96) years. Through multivariate logistic regression analysis, the aortic dissection (AD) risk score, poor perfusion of superior mesenteric artery (SMA), duration of aortic occlusion and intraoperative infusion of red blood cells were the predictors for AGI (P<0.05). There were statistical differences in the ventilator-assisted duration, ICU stay time, liver dysfunction, renal insufficiency, parenteral nutrition, nosocomial infection and death within 30 days after the operation between the two groups (P<0.05). The Nomogram prediction model was established by using the prediction factors, and the C index was 0.888. Through internal verification, the C index was 0.848. The receiver operating characteristic curve was used to evaluate the discrimination of the model, and the area under the curve was 0.888. Conclusion The AD risk score after ATAAD, poor perfusion of SMA, duration of aortic occlusion and intraoperative infusion of red blood cells are independent predictors for AGI. The Nomogram model has good prediction ability.