A novel KCNT1 mutation in a Chinese family with severe autosomal-dominant nocturnal frontal lobe epilepsy

We describe a Chinese family with severe autosomal-dominant nocturnal frontal lobe epilepsy (ADNFLE) and psychiatric problems in whom whole-exome family trio sequencing identified a heterozygous mutation in the potassium channel subfamily T, member 1 (KCNT1), a sodium-gated potassium channel gene, w...

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Autores principales: Xie Na, Qin Weiwei, Deng Jianzhong, Qi Jinxing, Niu Dewang, Lu Guifeng, Wang Qun
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Lenguaje:EN
Publicado: De Gruyter 2021
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Acceso en línea:https://doaj.org/article/212d8405c589450b98e83756c5795c27
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spelling oai:doaj.org-article:212d8405c589450b98e83756c5795c272021-12-05T14:11:05ZA novel KCNT1 mutation in a Chinese family with severe autosomal-dominant nocturnal frontal lobe epilepsy2081-693610.1515/tnsci-2020-0182https://doaj.org/article/212d8405c589450b98e83756c5795c272021-09-01T00:00:00Zhttps://doi.org/10.1515/tnsci-2020-0182https://doaj.org/toc/2081-6936We describe a Chinese family with severe autosomal-dominant nocturnal frontal lobe epilepsy (ADNFLE) and psychiatric problems in whom whole-exome family trio sequencing identified a heterozygous mutation in the potassium channel subfamily T, member 1 (KCNT1), a sodium-gated potassium channel gene, which was a novel missense mutation c.2153A>T (p. Asp718Val). The typical characteristics of the three patients in the family were refractory epilepsy, acquired cognitive impairment, and psychiatric problems, which include hallucinations and suicidal thoughts and behaviors. The age at onset was found to be earlier in son and daughter of the proband than that of the proband, as proven by the proband’s history of an epileptic seizure at the age of 16 years and her son’s and daughter’s history of seizures at the age of 8 years. Magnetic resonance imaging findings were negative for any abnormalities. Because of psychiatric symptoms, these three patients were administered risperidone at different times during their illness. The protestor’s son had tried fenofibrate treatment, but clinical remission was unclear. In summary, our findings broadened the mutation database in relation to KCNT1 and implicated the sodium-gated potassium channel complex in ADNFLE, more broadly, in the pathogenesis of focal epilepsies.Xie NaQin WeiweiDeng JianzhongQi JinxingNiu DewangLu GuifengWang QunDe Gruyterarticlekcnt1severe adnfleautosomal dominantrefractory epilepsypsychiatric symptomsNeurosciences. Biological psychiatry. NeuropsychiatryRC321-571ENTranslational Neuroscience, Vol 12, Iss 1, Pp 330-334 (2021)
institution DOAJ
collection DOAJ
language EN
topic kcnt1
severe adnfle
autosomal dominant
refractory epilepsy
psychiatric symptoms
Neurosciences. Biological psychiatry. Neuropsychiatry
RC321-571
spellingShingle kcnt1
severe adnfle
autosomal dominant
refractory epilepsy
psychiatric symptoms
Neurosciences. Biological psychiatry. Neuropsychiatry
RC321-571
Xie Na
Qin Weiwei
Deng Jianzhong
Qi Jinxing
Niu Dewang
Lu Guifeng
Wang Qun
A novel KCNT1 mutation in a Chinese family with severe autosomal-dominant nocturnal frontal lobe epilepsy
description We describe a Chinese family with severe autosomal-dominant nocturnal frontal lobe epilepsy (ADNFLE) and psychiatric problems in whom whole-exome family trio sequencing identified a heterozygous mutation in the potassium channel subfamily T, member 1 (KCNT1), a sodium-gated potassium channel gene, which was a novel missense mutation c.2153A>T (p. Asp718Val). The typical characteristics of the three patients in the family were refractory epilepsy, acquired cognitive impairment, and psychiatric problems, which include hallucinations and suicidal thoughts and behaviors. The age at onset was found to be earlier in son and daughter of the proband than that of the proband, as proven by the proband’s history of an epileptic seizure at the age of 16 years and her son’s and daughter’s history of seizures at the age of 8 years. Magnetic resonance imaging findings were negative for any abnormalities. Because of psychiatric symptoms, these three patients were administered risperidone at different times during their illness. The protestor’s son had tried fenofibrate treatment, but clinical remission was unclear. In summary, our findings broadened the mutation database in relation to KCNT1 and implicated the sodium-gated potassium channel complex in ADNFLE, more broadly, in the pathogenesis of focal epilepsies.
format article
author Xie Na
Qin Weiwei
Deng Jianzhong
Qi Jinxing
Niu Dewang
Lu Guifeng
Wang Qun
author_facet Xie Na
Qin Weiwei
Deng Jianzhong
Qi Jinxing
Niu Dewang
Lu Guifeng
Wang Qun
author_sort Xie Na
title A novel KCNT1 mutation in a Chinese family with severe autosomal-dominant nocturnal frontal lobe epilepsy
title_short A novel KCNT1 mutation in a Chinese family with severe autosomal-dominant nocturnal frontal lobe epilepsy
title_full A novel KCNT1 mutation in a Chinese family with severe autosomal-dominant nocturnal frontal lobe epilepsy
title_fullStr A novel KCNT1 mutation in a Chinese family with severe autosomal-dominant nocturnal frontal lobe epilepsy
title_full_unstemmed A novel KCNT1 mutation in a Chinese family with severe autosomal-dominant nocturnal frontal lobe epilepsy
title_sort novel kcnt1 mutation in a chinese family with severe autosomal-dominant nocturnal frontal lobe epilepsy
publisher De Gruyter
publishDate 2021
url https://doaj.org/article/212d8405c589450b98e83756c5795c27
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