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KCNT1 돌연변이가 확인된 영아 이동성 부분 발작 뇌전증 환아에서의 Quinidine 치료를 시도한 영아 1예
지나리(Nalee Jee),고아라(Ara Ko),김세희(Se Hee Kim),이준수(Joon Soo Lee),김흥동(Heung Dong Kim),이승태(Seung-Tae Lee),최종락(Jong Rak Choi),강훈철(Hoon Chul Kang) 대한소아신경학회 2017 대한소아신경학회지 Vol.25 No.3
Epilepsy of infancy with migrating focal seizure (MFEI) is an early-onset epileptic encephalopathy characterized by randomly migrating focal seizures and psychomotor deterioration. It is associated with mutations in a variety of genes, with potassium sodium-activated channel subfamily T member 1 (KCNT1) being an example. Previously reported KCNT1 mutations in MFEI are gain-of-function mutations. Therefore, quinidine therapy targeted at reduction of pathologically increased KCNT1 channel-mediated potassium conductance has been proposed as a target treatment for MEFI with KCNT1 mutation. The authors report a case involving a patient with MFEI and a missense mutation in KCNT1 (c.7129G>A; p.Phe346Leu) treated with quinidine therapy. Seizure activity was poorly responsive to quinidine.