OBJECTIVE: To identify the genetic locus for the familial adult myoclonic epilepsy (FAME) gene. BACKGROUND: Idiopathic generalized epilepsy (IGE) represents a collection of disorders in which affected individuals present with recurring seizures that have diffuse onset on EEG. These individuals have no known structural cerebral lesions or other identifiable etiology. IGE accounts for approximately 40% of all epilepsies. FAME is a type of IGE characterized by autosomal dominant inheritance, adult onset, varying degrees of myoclonus in the limbs, rare tonic-clonic seizures, and a benign course. METHODS: We investigated four previously reported Japanese kindreds and performed a genome-wide screen with genetic linkage analysis. RESULTS: Clinical characterization and sampling of 30 individuals in four families revealed that 21 had the FAME phenotype. We defined a 4.6-cM region on chromosome 8q24 (maximum lod score of 4.86 at theta = 0) that contains the FAME gene. CONCLUSIONS: The identification and characterization of the FAME gene allows us to better understand the molecular basis of FAME. Such knowledge may provide clues to understanding the molecular basis of the clinically similar, and more common, juvenile myoclonic epilepsies, and other generalized seizure disorders that have thus far eluded genetic approaches.
OBJECTIVE: To identify the genetic locus for the familial adult myoclonic epilepsy (FAME) gene. BACKGROUND:Idiopathic generalized epilepsy (IGE) represents a collection of disorders in which affected individuals present with recurring seizures that have diffuse onset on EEG. These individuals have no known structural cerebral lesions or other identifiable etiology. IGE accounts for approximately 40% of all epilepsies. FAME is a type of IGE characterized by autosomal dominant inheritance, adult onset, varying degrees of myoclonus in the limbs, rare tonic-clonic seizures, and a benign course. METHODS: We investigated four previously reported Japanese kindreds and performed a genome-wide screen with genetic linkage analysis. RESULTS: Clinical characterization and sampling of 30 individuals in four families revealed that 21 had the FAME phenotype. We defined a 4.6-cM region on chromosome 8q24 (maximum lod score of 4.86 at theta = 0) that contains the FAME gene. CONCLUSIONS: The identification and characterization of the FAME gene allows us to better understand the molecular basis of FAME. Such knowledge may provide clues to understanding the molecular basis of the clinically similar, and more common, juvenile myoclonic epilepsies, and other generalized seizure disorders that have thus far eluded genetic approaches.
Authors: F Zara; E Gennaro; M Stabile; I Carbone; M Malacarne; L Majello; R Santangelo; F A de Falco; F D Bricarelli Journal: Am J Hum Genet Date: 2000-03-30 Impact factor: 11.025
Authors: Melodie R Winawer; Filippo Martinelli Boneschi; Christie Barker-Cummings; Joseph H Lee; Jianjun Liu; Constantine Mekios; T Conrad Gilliam; Timothy A Pedley; W Allen Hauser; Ruth Ottman Journal: Epilepsia Date: 2002-01 Impact factor: 5.864
Authors: Lyndal Henden; Saskia Freytag; Zaid Afawi; Sara Baldassari; Samuel F Berkovic; Francesca Bisulli; Laura Canafoglia; Giorgio Casari; Douglas Ewan Crompton; Christel Depienne; Jozef Gecz; Renzo Guerrini; Ingo Helbig; Edouard Hirsch; Boris Keren; Karl Martin Klein; Pierre Labauge; Eric LeGuern; Laura Licchetta; Davide Mei; Caroline Nava; Tommaso Pippucci; Gabrielle Rudolf; Ingrid Eileen Scheffer; Pasquale Striano; Paolo Tinuper; Federico Zara; Mark Corbett; Melanie Bahlo Journal: Hum Genet Date: 2016-07-01 Impact factor: 4.132