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Chronic anterior thalamic nucleus deep brain stimulation reduces gliosis and neuronal loss in hippocampal CA2 and CA3 regions of epileptic rhesus monkeys

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机构: [1]Capital Med Univ, Beijing Tiantan Hosp, Dept Neurosurg, Beijing, Peoples R China; [2]Capital Med Univ, Beijing Neurosurg Inst, Dept Funct Neurosurg, Beijing, Peoples R China; [3]Beijing Key Lab Neurostimulat, Beijing 100050, Peoples R China; [4]Capital Med Univ, Dept Neurosurg, Beijing Tiantan Hosp, Beijing Neurosurg Inst, Room 307,6 Tiantan Xili, Beijing, Peoples R China
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关键词: Anterior thalamic nucleus deep brain stimulation epilepsy anti-gliosis neuronal loss reduction

摘要:
Background and objective: Anterior thalamic nucleus deep brain stimulation (ATN-DBS) has been shown to be an effective method in seizure reduction. However, its underlying mechanisms remain unclear. This study aimed to determine the potential beneficial effects of ATN-DBS on hippocampus in epileptic rhesus monkeys. Methods: Eighteen rhesus monkeys were randomly divided into three groups: control group (n=6), sham-DBS group (n=6) and DBS group (n=6). ATN-DBS was applied to kainic acid (KA)-induced epileptic monkeys. Behavioral seizures were continuously recorded. Neuronal nuclei (NeuN), hematoxylin and eosin (H&E) and glial fibrillary acidic protein (GFAP) staining were used to assess hippocampal injury and the effects of chronic ATN-DBS. NeuN and caspase-3 levels were evaluated by western blot. Results: Seizure frequency was 45.1% lower in the DBS group compared with the sham-DBS group (P<0.05). In the DBS group, H&E and NeuN staining revealed more cells in the CA3 region (P<0.05), while GFAP staining showed less GFAP-positive cells in both CA2 (P<0.01) and CA3 (P<0.05) regions, compared with the sham-DBS group. Furthermore, caspase-3 levels decreased (P<0.05, vs. the sham-DBS group) and NeuN levels increased (P<0.05, vs. the sham-DBS group) in the DBS group. Conclusion: These results suggest that ATN-DBS can reduce gliosis and neuronal loss in hippocampal CA2 and CA3 regions in epileptic rhesus monkeys, which may be one of the most important mechanisms in treating epilepsy with ATN-DBS.

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出版当年[2015]版:
大类 | 4 区 医学
小类 | 4 区 医学:研究与实验
最新[2023]版:
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出版当年[2014]版:
Q4 MEDICINE, RESEARCH & EXPERIMENTAL
最新[2023]版:
Q4 MEDICINE, RESEARCH & EXPERIMENTAL

影响因子: 最新[2023版] 最新五年平均 出版当年[2014版] 出版当年五年平均 出版前一年[2013版] 出版后一年[2015版]

第一作者:
第一作者机构: [1]Capital Med Univ, Beijing Tiantan Hosp, Dept Neurosurg, Beijing, Peoples R China;
通讯作者:
通讯机构: [1]Capital Med Univ, Beijing Tiantan Hosp, Dept Neurosurg, Beijing, Peoples R China; [2]Capital Med Univ, Beijing Neurosurg Inst, Dept Funct Neurosurg, Beijing, Peoples R China; [3]Beijing Key Lab Neurostimulat, Beijing 100050, Peoples R China; [4]Capital Med Univ, Dept Neurosurg, Beijing Tiantan Hosp, Beijing Neurosurg Inst, Room 307,6 Tiantan Xili, Beijing, Peoples R China
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