Title |
FHF1 (FGF12) epileptic encephalopathy
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Published in |
Neurology: Genetics, October 2016
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DOI | 10.1212/nxg.0000000000000115 |
Pubmed ID | |
Authors |
Sameer Al-Mehmadi, Miranda Splitt, Venkateswaran Ramesh, Suzanne DeBrosse, Kimberly Dessoffy, Fan Xia, Yaping Yang, Jill A. Rosenfeld, Patrick Cossette, Jacques L. Michaud, Fadi F. Hamdan, Philippe M. Campeau, Berge A. Minassian, Jeffrey Barrett, Matthew Hurles |
Abstract |
Voltage-gated sodium channels (Navs) are mainstays of neuronal function, and mutations in the genes encoding CNS Navs (Nav1.1 [SCN1A], Nav1.2 [SCN2A], Nav1.3 [SCN3A], and Nav1.6 [SCN8A]) are causes of some of the most common and severe genetic epilepsies and epileptic encephalopathies (EE).(1) Fibroblast-growth-factor homologous factors (FHFs) compose a family of 4 proteins that interact with the C-terminal tails of Navs to modulate the channels' fast, and long-term, inactivations.(2)FHF2 mutation is a rare cause of generalized epilepsy with febrile seizures plus (GEFS+).(3) Recently, a de novo FHF1 mutation (p.R52H) was reported in early-onset EE in 2 siblings.(4) We report 3 patients from unrelated families with the same FHF1 p.R52H mutation. The 5 cases together frame the FHF1 R52H EE from infancy to adulthood. As discussed below, this gain-of-function disease may be amenable to personalized therapy. |
X Demographics
Geographical breakdown
Country | Count | As % |
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India | 1 | 8% |
Brazil | 1 | 8% |
United Kingdom | 1 | 8% |
Saudi Arabia | 1 | 8% |
United States | 1 | 8% |
Unknown | 7 | 58% |
Demographic breakdown
Type | Count | As % |
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Members of the public | 11 | 92% |
Practitioners (doctors, other healthcare professionals) | 1 | 8% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
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United Kingdom | 1 | 3% |
Unknown | 39 | 98% |
Demographic breakdown
Readers by professional status | Count | As % |
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Researcher | 8 | 20% |
Student > Ph. D. Student | 6 | 15% |
Student > Master | 4 | 10% |
Student > Doctoral Student | 3 | 8% |
Other | 3 | 8% |
Other | 6 | 15% |
Unknown | 10 | 25% |
Readers by discipline | Count | As % |
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Medicine and Dentistry | 10 | 25% |
Biochemistry, Genetics and Molecular Biology | 8 | 20% |
Agricultural and Biological Sciences | 3 | 8% |
Neuroscience | 2 | 5% |
Immunology and Microbiology | 1 | 3% |
Other | 3 | 8% |
Unknown | 13 | 33% |