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find Author "刘智胜" 5 results
  • 癫痫与表观遗传学

    癫痫是一种以反复刻板性发作为特征的慢性神经系统疾病,现仍有20%~30%为难治性癫痫患儿,且发病机制尚未完全阐明。目前研究发现癫痫发病过程中存在表观遗传修饰异常,主要包括DNA甲基化、染色质重组、组蛋白修饰和非编码RNA调控等。文章将讨论表观遗传学在癫痫发病机制中的调控作用,以及与局灶性癫痫和全面性癫痫的关系,期待能从表观遗传学的角度阐明癫痫的发病机制,从而为癫痫药理学治疗分子靶标的识别提供新方向。

    Release date:2017-04-01 08:51 Export PDF Favorites Scan
  • Clinical features analysis in 10 children with seizures as core symptoms of neuronal surface antibody syndromes

    ObjectiveTo study the clinical features of children with seizures as core symptoms of neuronal surface antibody syndromes. MethodsThe clinical data of neuronal surface antibody syndromes between December 2015 and December 2016 were obtained and analyzed. All children presented to hospital with seizures as core symptoms. ResultsThere were 1 male and 9 females in this study. The ages ranged from 3 years to 13 years. The disease course was between 3 and 14 days. All children presented to hospital with seizures as core symptoms.Two children had tonic seizures. one had tonic-clonic seizure. Seven had partial seizures. Among them, six children had status epilepticus and cluster attack. The other symptoms in the course of the disease were psychiatric symptoms and extrapyramidal symptoms.The anti-NMDAR antibody were found in 9 patients' CSF and blood. The LGI1 antibody was found in one patients' CSF and blood.The EEG test of 7 patients showed slow wave and sharp slow wave. Two showed spike wave. One showed slow wave.The MRI test of one patient showed abnormal. Ten cases were treated with IVIG and methylprednisolone during acute stage. The patients had been followed up for 3 to 6 months. Eight of them recovered completely. Two cases had seizures. Two cases diagnosed with anti-NMDAR related epilepsy received sound effects after treated with cyclophosphamide. ConclusionsConvulsion may be the first common symptom of neuronal surface antibody syndromes in children. Immune factors should be screened when children with acute seizures and status epilepticus. Accompanying psychiatric symptoms, autoimmune epilepsy should be considered. The most common neuronal surface antibody in children with neuronal surface antibody syndromes is NMDAR antibody. EEG usually shows slow wave and sharp slow wave during seizures. Brain MRI is usually normal. Immunotherapy is effective in the majority of patients as the first line treatment. When the first-line treatment failed, second-line immunotherapy such as cyclophosphamide shock therapy on a regular basis is helpful.

    Release date:2017-11-27 02:36 Export PDF Favorites Scan
  • 多模态磁共振成像在儿童癫痫中的研究应用

    癫痫是常见的神经系统疾病,病理生理机制复杂,一部分患者难以找到病因。核磁共振成像(MRI)是癫痫诊断,尤其在癫痫灶定位方面的一项重要的影像学技术。随着功能磁共振技术(fMRI)的不断进步,在癫痫的诊治中日益突出,可以从生化微结构水平及脑网络方面探讨其发病机制,对明确病因具有重要意义,从而有助于实施个体化精准治疗,文章综述了近年来多模态 MRI 技术在癫痫领域的应用。

    Release date:2018-09-18 10:17 Export PDF Favorites Scan
  • Analysis of clinical features of epilepsy comorbid with tic disorders in children

    ObjectiveTo summarize the clinical characteristics of epilepsy comorbid with tic disorders in children, and discuss its diagnosis, treatment and management. MethodsThe clinical data of 12 epileptic children comorbid with tic disorders treated in Wuhan children's Hospital affiliated to Tongji Medical College of Huazhong University of Science and Technology from December, 2018 to June, 2021 was collected retrospectively. The clinical characteristics, EEG, MRI, treatment, prognosis of epileptic children comorbid with tic disorders were analyzed and summarized. ResultsThere were 12 epileptic children comorbid with tic disorders in total, 11 males, 1 female, average (10.0±2.9) years old. The onset age of epilepsy was ranged from 0.6 to 11 years old, average (6.5±3.3) years old. The onset age of tic disorders ranged from 3.5 to 11 years old, average (7.2±2.0) years old. The epileptic seizure types included focal seisures (Focal, 8 cases), atypical absence seizures(AAS, 2 cases), myoclonic seizure (MS, 1 case), generalized tonic-clonic seisures (GTCS, 3 cases). The epileptic syndromes included benign epilepsy with centrotemporal spikes (BECT, 2 cases), Dravet syndrome (1 case), juvenile myoclonic epilepsy(JME, 1 case), temporal lobe epilepsy (TLE, 1 case).The average oral antiepileptic seizure drug was 1, including lamotrigine(LTG), valproic acid(VPA), oxcarbazepine(OXC), levetiracetam(LEV), topiramate(TPM) and Perampanel. The clinical course of tic disorders ranged from 0.5 to 3.0 years, average (1.5±0.9) years. The clinical types included provisional tic disorder (PTD, 4 cases), chronic tic disorder (CTD, 5 cases, all of which were motor tics) and Tourette syndrome (TS, 3 cases). The severity of tic disorders was mild up to the last follow-up. In addition to tic disorders, other comorbidities included attention deficit and hyperactivity disorder (ADHD, 2 cases), 1 children was mixed type, 1 children was hyperactive impulse dominated type, psychomotor development disorder(3 cases), enuresis (1 case) and emotional disorder (1 case). There were interictal epileptiform discharges in 12 children with EEG, including focal discharges(7 cases, 1 EEG showed that focal discharges originated from the right temporal region), multiple discharges (5 cases, 1 EEG showed that multiple discharges originated from the right centro-temporal region), and clinical seizures were monitored in 6 cases (3 cases of focal seizures, 2 cases of atypical absence seizures, and 1 case of myoclonic seizure). Magnetic resonance imaging (MRI) of head showed no obvious abnormalities. The follow-up time was ranged from 0.5 to 3.0 years. Up to the last follow-up (2022.01.01), 8 cases of epilepsy had been controlled and 4 cases of tic disorders were cured. The prognosis of epilepsy comorbid with tic disorders in most children was good. ConclusionsThe prognosis of epilepsy comorbid with tic disorders in most children is good, the types of epileptic seizures and epileptic syndromes are various. Prognosis of these chidren mainly depends on the control of epileptic seizures, the severity of tics and existence of other neuropsychiatric comorbidities. Therefore, drug treatment mainly focuses on controlling the epileptic seizures, and the impact of comorbidities on children can not be ignored. The clinical management needs regular follow-up, timely evaluation and corresponding interventions.

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  • Roles of Hippocampal long-term potentiation in chronic cognitive dysfunction of immature epileptic rats

    ObjectiveTo investigate the effects of hippocampal long-term potentiation (LTP) on cognitive dysfunction in immature epileptic rats. MethodsImmature epileptic rats were established by intraperitoneal injection of lithium chloride-pilocarpine (li-pilo). Racine classification standard modified by Becker was used to evaluate behavior of epileptic seizure, and the survival rats within RacineⅣmagnitude were selected in the experiment. The function of learning and memory of epileptic rats when they were adult was assessed using Morris water maze experiment, and their independent exploratory behavior was evaluated by the open-field test. Field potential was recorded by electrophysiological technology to detecte whether hippocampal LTP was essential of cognitive dysfunction. ResultsThe function of learning and memory was significantly impaired when compared with controls(n=8, t=10.86, P < 0.05;n=8, t=9.98, P < 0.05). In addition, independent exploratory behavior was significantly reduced when compared with controls(n=8, t=12.89, P < 0.05). Besides, CA1 hippocampal LTP induced by high-frequency stimulation presented the significant inhibition in epileptic rats with cognitive dysfunction when compared with controls(Slope:n=8, t=13.32, P < 0.05;Amplitude:n=8, t=20.02, P < 0.05). ConclusionInhibition of CA1 hippocampal LTP may be implicated in cognitive dysfunction of epileptic rats.

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