Early onset severe ATP1A2 epileptic encephalopathy: Clinical characteristics and underlying mutations.
Early onset severe ATP1A2 epileptic encephalopathy: Clinical characteristics and underlying mutations.
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早发性重症ATP1A2癫痫脑病:临床特征和潜在突变。
DOI:
10.1016/j.yebeh.2020.107732
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发表时间:
2021-03
期刊:
影响因子:
--
通讯作者:
Mikati MA
中科院分区:
文献类型:
--
作者:
Moya-Mendez ME;Mueller DM;Pratt M;Bonner M;Elliott C;Hunanyan A;Kucera G;Bock C;Prange L;Jasien J;Keough K;Shashi V;McDonald M;Mikati MA
ATP1A2 mutations cause hemiplegic migraine with or without epilepsy or acute reversible encephalopathy. Typical onset is in adulthood or older childhood without subsequent severe long-term developmental impairments. Describe the manifestations of early onset severe ATP1A2-related epileptic encephalopathy and its underlying mutations in a cohort of seven patients. Retrospective chart review of a cohort of seven patients. Response to open label memantine therapy, used off-label due to its NMDA receptor antagonist effects, was assessed by the Global Rating Scale of Change (GRSC) and Clinical Global Impression Scale of Improvement (CGI-I) methodologies. Molecular modeling was performed using PyMol program. Patients (age 2.5-20 years) had symptom onset at an early age (6 days-1 year). Seizures were either focal or generalized. Drug resistance, recurrent status epilepticus, severe developmental delay with episodes of acute severe encephalopathy often with headaches, dystonias, hemiplegias, seizures, and developmental regression were common features. All had variants predicted to be disease causing (p.Ile293Met, p.Glu1000Lys, c.1017+5G>A, p.Leu809Arg, and 3 patients with p.Met813Lys). Modeling revealed that mutations interfered with ATP1A2 ion binding and translocation sites. Memantine, given to five, was tolerated in all (mean treatment: 2.3 years, range 6 weeks-4.8 years) with some improvements reported in all five. Our observations describe a distinctive clinical profile of seven unrelated probands with early onset severe ATP1A2-related epileptic encephalopathy, provide insights into structure-function relationships of ATP1A2 mutations, and support further studies of NMDAR antagonist therapy in ATP1A2-encephalopathy.
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影响因子:
4.6
作者:
Bøttger P;Glerup S;Gesslein B;Illarionova NB;Isaksen TJ;Heuck A;Clausen BH;Füchtbauer EM;Gramsbergen JB;Gunnarson E;Aperia A;Lauritzen M;Lambertsen KL;Nissen P;Lykke-Hartmann K
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Lykke-Hartmann K
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2.6
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影响因子:
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通讯作者:
De Jonghe, Peter
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作者:
Mewasingh, LD;Sékhara, T;Dan, B
通讯作者:
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