KCNT1基因介绍

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KCNT1基因介绍 was created by 凤凰

基因产物:钾离子通道(KCa4.1,钠离子门控型的钾离子通道)。

蛋白功能:外向整流钾通道,可被细胞内高浓度的钠或氯化物激活。

相关疾病: 常染色体显性遗传的夜间额叶癫痫 (AD)[1]; 婴儿癫痫伴游走性局灶性发作 (AD)[2];早发性癫痫脑病(AD)[3]; 早期肌阵挛脑病 (AD) [4]; 大田原综合征 (AD) [4]; West 综合征 (AD) [4]。

相关临床研究:PubMed数据库(PMID: 31054119 (Neurotherapeutics. 2019) ; PMID: 29196578 (Neurology. 2018)

用药提醒多数情况下奎尼丁并不能明显降低KCNT1增强型突变所致癫痫的发作频率,且存在一定的心脏风险[4],部分患者有一定效果(突变位点在NADP结合结构域远端包含RCK2结构域的位置)[3]。 


参考文献
  1. Heron, S.E., et al., Missense mutations in the sodium-gated potassium channel gene KCNT1 cause severe autosomal dominant nocturnal frontal lobe epilepsy.Nat Genet, 2012. 44(11): p. 1188-90.
  2. Barcia, G., et al., De novo gain-of-function KCNT1 channel mutations cause malignant migrating partial seizures of infancy.Nat Genet, 2012. 44(11): p. 1255-9.
  3. Fitzgerald, M.P., et al., Treatment Responsiveness in KCNT1-Related Epilepsy.Neurotherapeutics, 2019. 16(3): p. 848-857.
  4. Mullen, S.A., et al., Precision therapy for epilepsy due to KCNT1 mutations: A randomized trial of oral quinidine.Neurology, 2018. 90(1): p. e67-e72.
  5. Gertler, T., et al., KCNT1-Related Epilepsy, in GeneReviews((R)), M.P. Adam, et al., Editors. 1993: Seattle (WA).
25 May 2022 18:22 #1

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