Etty Paola Cortes Ramirez

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An expansion of a trinucleotide CAG repeat on chromosome 4 causes Huntington disease. The abnormal elongation of the CAG increases the polyglutamine stretch of huntingtin, which becomes proportionally toxic. The mutated huntingtin is ubiquitous in somatic tissues, yet the pathologic changes are apparently restricted to the brain. The degree of the abnormal(More)
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