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Title: Absence of GABRA1 Ala322Asp mutation in juvenile myoclonic epilepsy families from India
Authors: Kapoor, A
Vijai, J
Ravishankar, HM
Satishchandra, P
Radhakrishnan, K
Anand, A
Keywords: Genetics & Heredity
Issue Date: 2003
Citation: 82 ,42767;17-21
Abstract: An Ala322Asp mutation in the GABRA1 gene was recently reported to be responsible for causing the autosomal dominant (AD) form of juvenile myoclonic epilepsy (JME) in a French-Canadian family. To study if WE families from India exhibiting the AD mode of inheritance carry the Ala322Asp mutation, we examined 35 unrelated JME-affected individuals from such families for the Ala322Asp mutation in GABRA1. Ala322Asp mutation was not observed in any of these JME-affected individuals, suggesting that this mutation is unlikely to be a predominant mutation involved in causation of epilepsy. To evaluate the possibility of other mutation(s) in and around GABRA1 that may predispose to JME, we compared the allele frequencies at two marker loci, D5S2118 and D5S422, flanking GABRA1, in probands and 100 matched population controls. One of the allele frequencies at D5S422 shows a significant difference between the cases and controls (chi(2) = 11.44, d.f. = 1, P = 0.0007), suggesting genetic association between WE and genes located in the proximity of the DNA marker.
URI: 10.1007/BF02715876
Appears in Collections:Journal Articles

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