Familial Hemiplegic Migraine and Episodic Ataxia Type-2 Are Caused by Mutations in the Ca2+ Channel Gene CACNL1A4
Roel A. Ophoff,Gisela M. Terwindt,Monique N. Vergouwe,Ronald van Eijk,Peter J. Oefner,Susan M.G. Hoffman,Jane Lamerdin,Harvey W. Mohrenweiser,Dennis E. Bulman,Maurizio Ferrari,Joost Haan,Dick Lindhout,Gert-Jan B. van Ommen,Marten H. Hofker,Michel D. Ferrari,Rune R. Frants +15 more
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TLDR
A brain-specific P/Q-type Ca2+ channel alpha1-subunit gene, CACNL1A4, covering 300 kb with 47 exons is characterized, revealing polymorphic variations, including a (CA)n-repeat (D19S1150), a (CAG) n-repeat in the 3'-UTR, and different types of deleterious mutations in FHM and EA-2.About:
This article is published in Cell.The article was published on 1996-11-01 and is currently open access. It has received 2264 citations till now. The article focuses on the topics: Familial hemiplegic migraine & Spinocerebellar ataxia type 6.read more
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Autosomal dominant cerebellar ataxia (SCA6): clinical, genetic and neuropathological study in a family.
TL;DR: It is concluded that the pathological phenotype of this newly classified autosomal dominant cerebellar ataxia, SCA6, is cerebello-olivary atrophy, or more strictly Cerebellar cortical atrophy.
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SB-220453, a potential novel antimigraine agent, inhibits nitric oxide release following induction of cortical spreading depression in the anaesthetized cat.
TL;DR: SB-220453 represents a novel compound to assess the potential benefit of inhibiting SD associated nitric oxide release in neurological disease and no effect was observed on basal systemic haemodynamic parameters or resting cerebral laser Doppler blood flux at any of the doses of SB- 220453 tested.
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A review of the genetic relation between migraine and epilepsy.
TL;DR: It is likely that the development of specific drugs aimed at restoring ion-channel function and/or related cellular signalling pathways might benefit patients with epilepsy as well as those with migraine.
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Dominant KCNA2 mutation causes episodic ataxia and pharmacoresponsive epilepsy
Mark A. Corbett,Susannah T. Bellows,Melody Li,Renee Carroll,Silvana Micallef,Gemma L. Carvill,Candace T. Myers,Katherine B. Howell,Katherine B. Howell,Snezana Maljevic,Snezana Maljevic,Holger Lerche,Elena V. Gazina,Heather C Mefford,Melanie Bahlo,Melanie Bahlo,Samuel F. Berkovic,Steven Petrou,Steven Petrou,Ingrid E. Scheffer,Ingrid E. Scheffer,Ingrid E. Scheffer,Jozef Gecz +22 more
TL;DR: A KCNA2 mutation caused dominantly inherited episodic ataxia, mild infantile-onset seizures, and later generalized and focal epilepsies in the setting of normal intellect, expanding theKCNA2 phenotypic spectrum from EE often associated with chronic ataxIA.
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Unraveling Monogenic Channelopathies and Their Implications for Complex Polygenic Disease
TL;DR: Since an increasingly important approach to the identification of genes underlying polygenic disease is to identify "functional candidates" within a critical region and to test their disease association, it becomes increasingly important to appreciate how these ion-channel mechanisms can be implicated in pathophysiology.
References
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Single-step method of RNA isolation by acid guanidinium thiocyanate-phenol-chloroform extraction
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A novel gene containing a trinucleotide repeat that is expanded and unstable on Huntington's disease chromosomes
Marcy E. MacDonald,Christine Ambrose,Mabel P. Duyao,Richard H. Myers,Carol Lin,Lakshmi Srinidhi,Glenn Barnes,Sherryl A.M. Taylor,Marianne James,Nicolet Groot,Heather MacFarlane,Barbara Jenkins,Mary Anne Anderson,Nancy S. Wexler,James F. Gusella,Gillian P. Bates,Sarah Baxendale,Holger Hummerich,Susan F. Kirby,Mike North,S. Youngman,Richard Mott,Günther Zehetner,Zdenek Sedlacek,Annemarie Poustka,Anna-Maria Frischauf,Hans Lehrach,Alan Buckler,Deanna M. Church,Lynn Doucette-Stamm,Michael Conlon O'Donovan,Laura Riba-Ramirez,Manish A. Shah,Vincent P. Stanton,Scott A. Strobel,Karen M. Draths,Jennifer L. Wales,Peter B. Dervan,David E. Housman,Michael R. Altherr,Rita Shiang,Leslie M. Thompson,Thomas J. Fielder,John J. Wasmuth,Danilo A. Tagle,John Valdes,Lawrence W. Elmer,Marc W. Allard,Lucio H. Castilla,Manju Swaroop,Kris Blanchard,Francis S. Collins,Russell G. Snell,Tracey Holloway,Kathleen Gillespie,Nicole A. Datson,Duncan Shaw,Peter S. Harper +57 more
TL;DR: In this article, the authors used haplotype analysis of linkage disequilibrium to spotlight a small segment of 4p16.3 as the likely location of the defect, which is expanded and unstable on HD chromosomes.
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A novel gene containing a trinucleotide repeat that is expanded and unstable on Huntington's disease chromosomes. The Huntington's Disease Collaborative Research Group.
Manish A. Shah,Nicole A. Datson,Lakshmi Srinidhi,Vincent P. Stanton,Marcy E. MacDonald,Marc W. Allard,S. Youngman,Anna-Maria Frischauf,Richard Mott,KM Draths,Günther Zehetner,C. O’Donovan,Thomas J. Fielder,Bruce G. Jenkins,Manju Swaroop,Sherryl A.M. Taylor,Lynn Doucette-Stamm,Heather MacFarlane,Scott A. Strobel,H. E. McFarlane,Alan Buckler,Nicolet Groot,Holger Hummerich,Deanna M. Church,M. A. Anderson,Marianne James,Glenn Barnes,M. Christine,Francis S. Collins,Mabel P. Duyao,Peter B. Dervan,Gillian P. Bates,T Holloway,Peter S. Harper,TW Mcdonald,M North,K Blanchard,John J. Wasmuth,D. Shaw,Hans Lehrach,Danilo A. Tagle,Annemarie Poustka,David E. Housman,T. Huntington,Zdenek Sedlacek,Laura Riba,Susan F. Kirby,Carol Lin,Richard H. Myers,Leslie M. Thompson,Russell G. Snell,Michael Conlon O'Donovan,K Gillespie,Rita Shiang,Nancy S. Wexler,Christine Ambrose,J. F. Gusella,Sarah Baxendale,N. Groat,John Valdes +59 more
TL;DR: The Huntington's disease mutation involves an unstable DNA segment, similar to those described in fragile X syndrome, spino-bulbar muscular atrophy, and myotonic dystrophy, acting in the context of a novel 4p16.3 gene to produce a dominant phenotype.
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Rapid and sensitive detection of point mutations and DNA polymorphisms using the polymerase chain reaction
TL;DR: It is found that most single base changes in up to 200-base fragments could be detected as mobility shifts and the interspersed repetitive sequences of human, Alu repeats are highly polymorphic.
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Expansion of an unstable trinucleotide CAG repeat in spinocerebellar ataxia type 1.
Harry T. Orr,Ming Yi Chung,Sandro Banfi,Thomas J. Kwiatkowski,Antonio Servadio,Arthur L. Beaudet,Alanna E. McCall,Lisa A. Duvick,Laura P.W. Ranum,Huda Y. Zoghbi +9 more
TL;DR: There is a direct correlation between the size of the (CAG)n repeat expansion and the age–of–onset of SCA1, with larger alleles occurring in juvenile cases.