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Yoonju Lee 1 Article
Familial Hyperekplexia, a Potential Cause of Cautious Gait: A New Korean Case and a Systematic Review of Phenotypes
Yoonju Lee, Nan Young Kim, Sangkyoon Hong, Su Jin Chung, Seong Ho Jeong, Phil Hyu Lee, Young H. Sohn
J Mov Disord. 2017;10(1):53-58.   Published online December 27, 2016
DOI: https://doi.org/10.14802/jmd.16044
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  • 11 Citations
AbstractAbstract PDFSupplementary Material
Familial hyperekplexia, also called startle disease, is a rare neurological disorder characterized by excessive startle responses to noise or touch. It can be associated with serious injury from frequent falls, apnea spells, and aspiration pneumonia. Familial hyperekplexia has a heterogeneous genetic background with several identified causative genes; it demonstrates both dominant and recessive inheritance in the α1 subunit of the glycine receptor (GLRA1), the β subunit of the glycine receptor and the presynaptic sodium and chloride-dependent glycine transporter 2 genes. Clonazepam is an effective medical treatment for hyperekplexia. Here, we report genetically confirmed familial hyperekplexia patients presenting early adult cautious gait. Additionally, we review clinical features, mode of inheritance, ethnicity and the types and locations of mutations of previously reported hyperekplexia cases with a GLRA1 gene mutation.

Citations

Citations to this article as recorded by  
  • Hereditary hyperekplexia: a new family and a systematic review of GLRA1 gene-related phenotypes
    Elisabetta Ferraroli, Marco Perulli, Chiara Veredice, Ilaria Contaldo, Michela Quintiliani, Martina Ricci, Ilaria Venezia, Luigi Citrigno, Antonio Qualtieri, Patrizia Spadafora, Francesca Cavalcanti, Domenica Immacolata Battaglia
    Pediatric Neurology.2022;[Epub]     CrossRef
  • Paroxysmal Nonepileptic Events in Children
    Ilaria Lagorio, Lorenzo Brunelli, Pasquale Striano
    Neurology: Clinical Practice.2022; 12(4): 320.     CrossRef
  • Four Turkish families with hyperekplexia: A missense mutation and the exon 1–7 deletion in the GLRA1 gene
    Didem Tezen, Gülşah Şimşir, Özlem Çokar, Veysi Demirbilek, A. Nazlı Başak, Zuhal Yapıcı
    Parkinsonism & Related Disorders.2022; 105: 128.     CrossRef
  • Advances in hyperekplexia and other startle syndromes
    Fei-xia Zhan, Shi-Ge Wang, Li Cao
    Neurological Sciences.2021; 42(10): 4095.     CrossRef
  • A Case of Hyperekplexia That Started From Childhood: Clinical Diagnosis With Negative Genetic Investigations
    Annibale Antonioni, Giovanni Peschi, Enrico Granieri
    Frontiers in Neurology.2020;[Epub]     CrossRef
  • Excessive Startle with Novel GLRA1 Mutations in 4 Chinese Patients and a Literature Review of GLRA1-Related Hyperekplexia
    Feixia Zhan, Chao Zhang, Shige Wang, Zeyu Zhu, Guang Chen, Mingliang Zhao, Li Cao
    Journal of Clinical Neurology.2020; 16(2): 230.     CrossRef
  • C.292G>A, a novel glycine receptor alpha 1 subunit gene (GLRA1) mutation found in a Chinese patient with hyperekplexia
    Yan Zhang, Ling-Ling Wu, Xiao-Lan Zheng, Cai-Mei Lin
    Medicine.2020; 99(17): e19968.     CrossRef
  • Hyperekplexia and other startle syndromes
    Arushi Gahlot Saini, Sanjay Pandey
    Journal of the Neurological Sciences.2020; 416: 117051.     CrossRef
  • Clinical features and genetic analysis of two siblings with startle disease in an Italian family: a case report
    Teresa Sprovieri, Carmine Ungaro, Serena Sivo, Michela Quintiliani, Ilaria Contaldo, Chiara Veredice, Luigi Citrigno, Maria Muglia, Francesca Cavalcanti, Sebastiano Cavallaro, Eugenio Mercuri, Domenica Battaglia
    BMC Medical Genetics.2019;[Epub]     CrossRef
  • Weird Laughing in Hyperekplexia: A new phenotype associated with a novel mutation in the GLRA1 gene?
    Zhi Huang, Yajun Lian, Hongliang Xu, Haifeng Zhang
    Seizure.2018; 58: 6.     CrossRef
  • A novel compound mutation in GLRA1 cause hyperekplexia in a Chinese boy- a case report and review of the literature
    Zhiliang Yang, Guilian Sun, Fang Yao, Dongying Tao, Binlu Zhu
    BMC Medical Genetics.2017;[Epub]     CrossRef

JMD : Journal of Movement Disorders