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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2008-7-21
pubmed:abstractText
Twenty-one patients with long standing unexplained ptosis (3), chronic progressive external ophthalmoplegia (CPEO, 16) or Kearns-Sayre syndrome (KSS, 2) were studied for the presence of mitochondrial DNA (mtDNA) deletions and the major disease-associated mtDNA point mutations with the aim of correlating mitochondrial genetic abnormalities with pathogenesis in these patients. Only 52% were found to have a deletion; of these, 82% harboured the 'common deletion'. Two of 2 KSS patients and 9 of 16 CPEO patients were deletion positive. None of the 3 patients with bilateral ptosis only had a deletion. Of those patients with ragged red fibres (RRF) on histology, 69% had a deletion. No disease associated mtDNA point mutation was observed with the exception of the nucleotide (nt) 11084 A-G mutation associated with mitochondrial encephalopathy, lactic acidosis and stroke-like episodes (MELAS) in a patient also harbouring the common deletion. The role of deletions in CPEO patients is discussed.
pubmed:language
eng
pubmed:journal
pubmed:status
PubMed-not-MEDLINE
pubmed:month
Apr
pubmed:issn
0967-5868
pubmed:author
pubmed:issnType
Print
pubmed:volume
4
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
163-8
pubmed:year
1997
pubmed:articleTitle
Are mitochondrial DNA deletions causative in chronic progressive external ophthalmoplegia patients?
pubmed:affiliation
Clinical Neuroscience Centre, St Vincent's Hospital, Fitzroy, Victoria 3065, Australia.
pubmed:publicationType
Journal Article