Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
2004-5-7
pubmed:abstractText
Cardiac myocytes, skeletal muscle fibers, and other long-lived postmitotic cells show dramatic age-related alterations that mainly affect mitochondria and the lysosomal compartment. Mitochondria are primary sites of reactive oxygen species formation that causes progressive damage to mitochondrial DNA and proteins in parallel to intralysosomal lipofuscin accumulation. There is amassing evidence that several various mechanisms may contribute to age-related accumulation of damaged mitochondria following initial oxidative injury. Such mechanisms may include clonal expansion of defective mitochondria, decreased propensity of altered mitochondria to become autophagocytosed (due to mitochondrial enlargement or decreased membrane damage associated with weakened respiration), suppressed autophagy because of heavy lipofuscin loading of lysosomes, and decreased efficiency of Lon protease.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
0531-5565
pubmed:author
pubmed:issnType
Print
pubmed:volume
39
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
701-5
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed:year
2004
pubmed:articleTitle
Myocyte aging and mitochondrial turnover.
pubmed:affiliation
Division of Pathology II, Faculty of Health Sciences, Linköping University, SE-58185 Linkoping, Sweden. alex.terman@inr.liu.se
pubmed:publicationType
Journal Article, Review, Research Support, Non-U.S. Gov't