期刊
NEUROLOGY
卷 59, 期 11, 页码 1783-1786出版社
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1212/01.WNL.0000035629.04791.3F
关键词
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Most cases of dopa-responsive dystonia (DRD) are thought to be caused by mutations in the GCHI gene; however, by sequencing, mutations are found in only 40% to 60%. Recently, a single report identified, via Southern blot analysis, a large genomic GCHI deletion in a mutation-negative case. This report describes four families with DRD, two of which carry large deletions, thus confirming that deletions are an important subtype of GCHI mutations. These deletions were detected by quantitative duplex PCR that is amenable to DNA diagnostics.
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