低頻率電刺激對(duì)癲癇灶點(diǎn)轉(zhuǎn)移的作用及初步機(jī)制研究
[Abstract]:Epilepsy is a chronic disease of the central nervous system due to the abnormal discharge of the cerebral cortex. The "range transfer" transfer of secondary focus refers to a new approach to the non-structural change of the brain regions other than the primary cause of epilepsy in the patients with epilepsy with the progression of the repeated onset of the primary focus. There are more than 30% of the patients with epilepsy in the long-term and recurrent primary and secondary development process. The transfer of the focal point may occur in a plurality of brain regions including the leaves, the frontal lobe, and the like. The mirror focus is referred to as a mirror focus point transfer when the site of the new hair-burning range is located at the corresponding mirror site in the opposite hemisphere of the primary fo cus, or the first range. At present, the probability of drug resistance in epileptic patients with focal point transfer is very high, and the prognosis of the operation is also very poor. Repeated episodes beyond the control of the long term cause a heavy burden on the patient, and the serious person is even disabled and fatal. The long-term treatment cost also has a heavy economic burden on the society. Therefore, it is necessary to find effective means of treatment for the transfer of the focal point. Deep brain stimulation (DBS) is a new promising treatment for the treatment of epilepsy. Pre-clinical and clinical studies have shown that DBS-specific target areas can significantly inhibit the onset of multiple types of epilepsy. In particular, that low-frequency electrical stimulation (LFS) show good tolerance, controllability and small tissue damage in the aspect of inhibition of epilepsy. The previous series of studies in our research group found that LFS can effectively inhibit the seizure and can inhibit the formation of epilepsy, such as the internal olfactory cortex, the pear-shaped cortex and the anterior nucleus of the thalamus. Therefore, we have speculated that LFS may be able to suppress the focal point transfer of the epilepsy. Therefore, in the first part of this dissertation, we mainly study the effect and characteristics of LFS on the formation process (focal point transfer) of the second cooking range, and explore the possible ways to inhibit the transfer of the focal point of the epilepsy. In the second part, we try to explore whether the focal point transfer can be predicted by a specific biomarker by analyzing the related protein changes in the animal model and the patients with epilepsy. In this study, we used the rat almonds nuclear power to ignite the epileptic model, and it was found that when the first range (right amygdala) was completely ignited to form the epileptogenic focus, the second range (the side of the mirror) was found. The occurrence of the left-hand amygdala is promoted; and by electrical damage experiments we have shown that this contribution is non-dependent and independent of the first focal point. Further, we find that LFS can delay the second range point-causing process directly on the first range point, indicating that the LFS may have the function of delaying the transfer of the stove point. the first range point is formed in the early stage to promote the second range point level, and the advanced stage is formed at the first range point, and the progress of the second range point level and the time duration after the discharge are promoted; and according to the research phenomenon, we begin to give the LFS at the later stage of the first range point formation, It is found that the LFS can only reduce the post-discharge duration of the second range, and can not delay the progression rate of the grade. At the same time, we further explore the case where the second range point is the ipsilateral hippocampus, similar, the first range point can also promote the second range point. For the first time in this study, we proposed that LFS can play an important role in the formation of the second range, and provide a theoretical basis for the treatment of focal point metastasis in the patients with epilepsy. The second part of low-frequency electrical stimulation involved in the shift of the focal point involved in the control of the protein and the clinical case of the shift of the focal point. in this study, we found that the first range point and the bilateral hippocampal chloride channel protein KCC2 were detected by the LFS intervention for the first range point formation, the LFS intervention of the first range point electrical ignition process and the complete blank (normal), and after the first range point was found to be formed, In both bilateral (bilateral amygdala) and bilateral hippocampus, the expression of KCC2 decreased relative to the brain tissue of completely blank animals, and the trend of this decline was reversed after the intervention of LFS. We found that there was a low level of expression of KCC2 in the brain tissue of epileptic patients with focal point metastasis, suggesting that the KCC2 might be a biomarker for the transfer of the point of range.
【學(xué)位授予單位】:浙江大學(xué)
【學(xué)位級(jí)別】:博士
【學(xué)位授予年份】:2016
【分類號(hào)】:R742.1
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