| pubmed-article:2395603 | rdf:type | pubmed:Citation | lld:pubmed |
| pubmed-article:2395603 | lifeskim:mentions | umls-concept:C0026882 | lld:lifeskim |
| pubmed-article:2395603 | lifeskim:mentions | umls-concept:C0012929 | lld:lifeskim |
| pubmed-article:2395603 | lifeskim:mentions | umls-concept:C0022541 | lld:lifeskim |
| pubmed-article:2395603 | lifeskim:mentions | umls-concept:C0442805 | lld:lifeskim |
| pubmed-article:2395603 | lifeskim:mentions | umls-concept:C0205329 | lld:lifeskim |
| pubmed-article:2395603 | lifeskim:mentions | umls-concept:C1264633 | lld:lifeskim |
| pubmed-article:2395603 | pubmed:issue | 2 | lld:pubmed |
| pubmed-article:2395603 | pubmed:dateCreated | 1990-10-11 | lld:pubmed |
| pubmed-article:2395603 | pubmed:abstractText | We have performed morphologic and biochemical studies in three pediatric cases of Kearns-Sayre syndrome. All cases had heteroplasmy with a high percentage of mitochondrial DNA (mtDNA) with deletion in muscle. The deletions were mapped to the same region of mtDNA but were of different sizes. The same type of deletion could also be detected in fibroblasts from all cases but the percentage was considerably lower. In two cases, an increase with time of the mutated mtDNA fraction in muscle was found and this increase paralleled the progression of the disease. Oximetric evaluation of respiratory-chain function in isolated muscle mitochondria showed a complex I deficiency in one case and was normal in the two other cases. Comparison of the fractional concentration of mtDNA with deletion in muscle and isolated mitochondria showed that the isolated mitochondria were not representative of the mitochondrial population in muscle. Mitochondria with high percentage of mtDNA with deletion were selectively lost. The finding of different mitochondrial populations is in good agreement with the morphology. One case spontaneously recovered from an infantile sideroblastic anemia before the development of Kearns-Sayre syndrome. The anemia was of the same type as that in Pearson's syndrome, a mitochondrial disorder with high amounts of mtDNA with deletion in blood cells. These findings indicate that the phenotype of a mtDNA deletion disorder can change with time and is governed by the fractional concentration of mtDNA with deletion in different tissues. | lld:pubmed |
| pubmed-article:2395603 | pubmed:language | eng | lld:pubmed |
| pubmed-article:2395603 | pubmed:journal | http://linkedlifedata.com/r... | lld:pubmed |
| pubmed-article:2395603 | pubmed:citationSubset | IM | lld:pubmed |
| pubmed-article:2395603 | pubmed:chemical | http://linkedlifedata.com/r... | lld:pubmed |
| pubmed-article:2395603 | pubmed:status | MEDLINE | lld:pubmed |
| pubmed-article:2395603 | pubmed:month | Aug | lld:pubmed |
| pubmed-article:2395603 | pubmed:issn | 0031-3998 | lld:pubmed |
| pubmed-article:2395603 | pubmed:author | pubmed-author:HolmeEE | lld:pubmed |
| pubmed-article:2395603 | pubmed:author | pubmed-author:OldforsAA | lld:pubmed |
| pubmed-article:2395603 | pubmed:author | pubmed-author:LarssonN GNG | lld:pubmed |
| pubmed-article:2395603 | pubmed:author | pubmed-author:TuliniusMM | lld:pubmed |
| pubmed-article:2395603 | pubmed:author | pubmed-author:KristianssonB... | lld:pubmed |
| pubmed-article:2395603 | pubmed:issnType | Print | lld:pubmed |
| pubmed-article:2395603 | pubmed:volume | 28 | lld:pubmed |
| pubmed-article:2395603 | pubmed:owner | NLM | lld:pubmed |
| pubmed-article:2395603 | pubmed:authorsComplete | Y | lld:pubmed |
| pubmed-article:2395603 | pubmed:pagination | 131-6 | lld:pubmed |
| pubmed-article:2395603 | pubmed:dateRevised | 2009-11-19 | lld:pubmed |
| pubmed-article:2395603 | pubmed:meshHeading | pubmed-meshheading:2395603-... | lld:pubmed |
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| pubmed-article:2395603 | pubmed:meshHeading | pubmed-meshheading:2395603-... | lld:pubmed |
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| pubmed-article:2395603 | pubmed:meshHeading | pubmed-meshheading:2395603-... | lld:pubmed |
| pubmed-article:2395603 | pubmed:year | 1990 | lld:pubmed |
| pubmed-article:2395603 | pubmed:articleTitle | Progressive increase of the mutated mitochondrial DNA fraction in Kearns-Sayre syndrome. | lld:pubmed |
| pubmed-article:2395603 | pubmed:affiliation | Department of Clinical Chemistry, Gothenburg University, Sahlgrens Hospital, Sweden. | lld:pubmed |
| pubmed-article:2395603 | pubmed:publicationType | Journal Article | lld:pubmed |
| pubmed-article:2395603 | pubmed:publicationType | Case Reports | lld:pubmed |
| pubmed-article:2395603 | pubmed:publicationType | Research Support, Non-U.S. Gov't | lld:pubmed |
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