顽固性颞叶癫痫患者海马或颞叶BDNF及其受体TrkB的测定Content of BDNF and Its Receptor TrkB in the Temporal Lobe or Hippocampus of Intractable Temporal Lobe Epilepsy
侯晓华;赵姝;林志国;张黎明;
摘要(Abstract):
目的检测脑源性神经营养因子(BDNF)及其受体酪氨酸激酶B受体(TrkB)在难治性颞叶癫痫(TLE)患者颞叶和/或海马中的含量,探讨其在癫痫发病机制中的作用。方法选取经手术治疗的82例难治性TLE患者术中切除的海马或颞叶脑组织,用免疫组化方法对BDNF及其受体TrkB含量进行检测,并与11例对照进行比较。结果在难治性TLE患者中,BDNF在颞叶和海马中含量明显增加(分别P<0.05,P<0.01),且海马中含量明显高于颞叶(P<0.01);TrkB在颞叶和海马中含量显著增加(P<0.01),且海马中含量高于颞叶(P<0.05)。结论难治性TLE患者海马和颞叶中BDNF和TrkB含量增高,可能在癫痫发生、发展中起重要作用。
关键词(KeyWords): 脑源性神经营养因子;酪氨酸激酶B受体;颞叶癫痫
基金项目(Foundation): 黑龙江省科委公关基金资助项目(GB06C40307)
作者(Author): 侯晓华;赵姝;林志国;张黎明;
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参考文献(References):
- [1]侯晓华,张黎明,林志国,等.颅内皮质电极脑电图对顽固性颞叶癫痫的定位价值[J].临床神经病学杂志,2007,6(20):414-416.
- [2]Brunig IS,Penschuck B,berninger J,et al.BDNFreduces miniature inhibitory postsynaptic currents by rapid down regulation of GABA(A)receptor surface expression[J].Eur J Neurosci,2001,13(7):1320-1328.
- [3]Pal ma E,Torchia G,Limatola C,et al.BDNF modu-lates GABAAreceptors microtransplanted from the human epileptic brain to xenopus oocytes[J].Proc Natl Acad Sci U S A,2005,102(5):1667-1672.
- [4]Eberhardt KA,Irintchev A,Al majed AA.BDNF/TrkB signaling regulates HNK-1carbohydrate expression inregenerating motor nerves and promotes functional recovery after peripheral nerve repair[J].Exp Neurol,2006,198(2):500-510.
- [5]Hagihara H,Hara M,Tsunekawa K,et al.Tonic-clonic seizures induce division of neuronal pro-genitor cells with concomitant changes in expression of neuro-trophic factors in the brain of pilocarpine-treated mice[J].Mol Brain Res,2005,139(2):258-266.
- [6]Scharf man HE,Goodman J H,Sollas AL.Spontane-ous limbic seizures after intrahippocampal infusion o derived neurotro-phic factor[J].Exp Neurol,2002174(2):201-214.
- [7]林卫红,孟红梅,吕玉丹,等.BDNF及其受体TrkB在实验性癫痫中的作用及意义探讨[J].中国神经免疫学和神经病学杂志,2007,14(1):11-14.
- [8]Danzer SC,He X,McNamara JO.Ontogeny of sei zure-induced increases in BDNF immunoreactivityand TrkB receptor activationin rat hippocampus[J].Hip pocampus,2004,14(3):345-355.
- [9]Takahashi M,Hayashi S,Kakita A,et al.Patient with temporal lobe epilepsy showanincrease in brain derived neurotrophic protein and its correlation with neuropeptide Y[J].Brain Res,1999,818(2):579582.
- [10]Zhu WJ,Roper SN.Brain-derived neurotrophic facto enhance fast excitatory synaptic transmission in human epileptic dentate gyrus[J].Ann Neurol,200150(2):188-194.