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  • Title: Confirmation that a T-to-C mutation at 9176 in mitochondrial DNA is an additional candidate mutation for Leigh's syndrome.
    Author: Makino M, Horai S, Goto Y, Nonaka I.
    Journal: Neuromuscul Disord; 1998 May; 8(3-4):149-51. PubMed ID: 9631394.
    Abstract:
    Among 80 patients with the clinical and brain imaging characteristics of Leigh's syndrome, 11 patients had a well-known mutation at nucleotide position (nt) 8993 in mitochondrial DNA. In addition, three patients had a T-to-C mutation at nt 9176 which had been described previously in only two brothers with bilateral striatal necrosis and one patient with Leigh's syndrome. In our three patients, one had the typical clinical characteristics of Leigh's syndrome from early infancy, and two had the later onset of neurological deficits. All had a slowly progressive course and basal ganglia abnormalities by neuroimaging. As nt 8993 and 9176 are located in the ATPase 6 coding region, altered ATPase function may be one of the enzyme abnormalities in Leigh's syndrome and other similar conditions with bilateral striatal necrosis.
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